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Author SHA1 Message Date
paoloricciuti
199d57a8e3 feat: wip github webhook 2025-09-26 14:59:47 +02:00
108 changed files with 1363 additions and 6184 deletions

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@@ -1,8 +0,0 @@
# Changesets
Hello and welcome! This folder has been automatically generated by `@changesets/cli`, a build tool that works
with multi-package repos, or single-package repos to help you version and publish your code. You can
find the full documentation for it [in our repository](https://github.com/changesets/changesets)
We have a quick list of common questions to get you started engaging with this project in
[our documentation](https://github.com/changesets/changesets/blob/main/docs/common-questions.md)

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@@ -1,11 +0,0 @@
{
"$schema": "https://unpkg.com/@changesets/config@3.1.1/schema.json",
"changelog": ["@svitejs/changesets-changelog-github-compact", { "repo": "sveltejs/mcp" }],
"commit": false,
"fixed": [],
"linked": [],
"access": "public",
"baseBranch": "main",
"updateInternalDependencies": "patch",
"ignore": ["!@sveltejs/mcp", "!@sveltejs/opencode"]
}

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@@ -1,22 +0,0 @@
{
"name": "svelte",
"owner": {
"name": "Svelte"
},
"plugins": [
{
"name": "svelte",
"source": "./plugins/svelte",
"description": "A plugin for all things Svelte development, MCP, skills, and more.",
"lspServers": {
"svelte": {
"command": "svelte-language-server",
"args": ["--stdio"],
"extensionToLanguage": {
".svelte": "svelte"
}
}
}
}
]
}

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@@ -1,3 +1,2 @@
.claude
.github
.vscode
.github

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@@ -1 +0,0 @@
packages/mcp-server/src/use_cases.json

1
.github/FUNDING.yml vendored
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@@ -1 +0,0 @@
open_collective: svelte

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@@ -13,17 +13,17 @@ jobs:
steps:
- name: Checkout Repository
uses: actions/checkout@v6
uses: actions/checkout@v4
- name: Setup pnpm
uses: pnpm/action-setup@v4
with:
version: 10.27.0
version: 10
- name: Setup Node.js
uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
uses: actions/setup-node@v4
with:
node-version: '24'
node-version: '22'
cache: 'pnpm'
- name: Install dependencies

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@@ -13,17 +13,17 @@ jobs:
steps:
- name: Checkout Repository
uses: actions/checkout@v6
uses: actions/checkout@v4
- name: Setup pnpm
uses: pnpm/action-setup@v4
with:
version: 10.27.0
version: 10
- name: Setup Node.js
uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
uses: actions/setup-node@v4
with:
node-version: '24'
node-version: '22'
cache: 'pnpm'
- name: Install dependencies

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@@ -1,23 +0,0 @@
name: Publish Any Commit
on: [push, pull_request]
permissions: {}
jobs:
build:
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v6
- run: corepack enable
- uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
with:
node-version: 24
cache: 'pnpm'
- name: Install dependencies
run: pnpm install
- run: pnpm dlx pkg-pr-new publish --compact './packages/mcp-stdio' './packages/opencode' --pnpm

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@@ -1,41 +0,0 @@
name: Publish to MCP Registry
on:
workflow_call:
secrets:
MCP_KEY:
required: true
workflow_dispatch:
jobs:
publish-mcp:
name: Publish to MCP Registry
runs-on: ubuntu-latest
steps:
- name: checkout
uses: actions/checkout@v6
- name: Publish to MCP Registry
working-directory: packages/mcp-stdio
env:
MCP_KEY: ${{ secrets.MCP_KEY }}
run: |
NAME=mcp-publisher_$(uname -s | tr '[:upper:]' '[:lower:]')_$(uname -m | sed 's/x86_64/amd64/;s/aarch64/arm64/').tar.gz
# Download MCP Publisher pinned to v1.4.0 using latest https for security and save it to a file named mcp-publisher.tar.gz
curl --proto '=https' --proto-redir '=https' --tlsv1.2 -fL "https://github.com/modelcontextprotocol/registry/releases/download/v1.4.0/$NAME" -O
# Verify the SHA256 checksum of the downloaded file
sha256sum --ignore-missing -c ./checksums/registry_1.4.0_checksums.txt
# Extract the tarball
mkdir tmp
tar -xzf $NAME --no-same-owner --no-same-permissions -C tmp
# Install the MCP Publisher binary
install -m 0755 tmp/mcp-publisher .
# Login using DNS
./mcp-publisher login dns --domain svelte.dev --private-key "${MCP_KEY}"
# Publish to MCP Registry
./mcp-publisher publish

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@@ -1,45 +0,0 @@
name: Release Svelte Code Writer Skill
on:
push:
branches:
- main
paths:
- 'plugins/svelte/skills/svelte-code-writer/**'
workflow_dispatch:
permissions: {}
jobs:
release:
permissions:
contents: write
# prevents this action from running on forks
if: github.repository == 'sveltejs/mcp'
name: Release Svelte Code Writer Skill
runs-on: ubuntu-latest
steps:
- name: checkout
uses: actions/checkout@v6
- name: Get version from date
id: version
run: echo "version=$(date +'%Y.%m.%d-%H%M%S')" >> $GITHUB_OUTPUT
- name: Create zip
run: |
cd plugins/svelte/skills
zip -r svelte-code-writer.zip svelte-code-writer/
- name: Create Release
uses: softprops/action-gh-release@v2
with:
tag_name: svelte-code-writer-v${{ steps.version.outputs.version }}
name: Svelte Code Writer Skill v${{ steps.version.outputs.version }}
body: |
Automated release of the Svelte Code Writer skill.
This release was triggered by changes to the `plugins/svelte/skills/svelte-code-writer/` directory.
files: plugins/svelte/skills/svelte-code-writer.zip
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

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@@ -1,70 +0,0 @@
name: Release
on:
push:
branches:
- main
permissions: {}
jobs:
release:
permissions:
contents: write # to create release (changesets/action)
id-token: write # OpenID Connect token needed for provenance
pull-requests: write # to create pull request (changesets/action)
# prevents this action from running on forks
if: github.repository == 'sveltejs/mcp'
name: Release
runs-on: ${{ matrix.os }}
outputs:
published: ${{ steps.changesets.outputs.published }}
strategy:
matrix:
# pseudo-matrix for convenience, NEVER use more than a single combination
node: [24]
os: [ubuntu-latest]
steps:
- name: checkout
uses: actions/checkout@v6
with:
# This makes Actions fetch all Git history so that Changesets can generate changelogs with the correct commits
fetch-depth: 0
- uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
with:
node-version: ${{ matrix.node }}
package-manager-cache: false # pnpm is not installed yet
- name: install pnpm
shell: bash
run: |
PNPM_VER=$(jq -r '.packageManager | if .[0:5] == "pnpm@" then .[5:] else "packageManager in package.json does not start with pnpm@\n" | halt_error(1) end' package.json)
echo installing pnpm version $PNPM_VER
npm i -g pnpm@$PNPM_VER
- uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
with:
node-version: ${{ matrix.node }}
package-manager-cache: true # caches pnpm via packageManager field in package.json
cache: 'pnpm'
- name: install
run: pnpm install --frozen-lockfile --prefer-offline --ignore-scripts
- name: build
run: pnpm run --filter ./packages/mcp-stdio/ build
- name: Create Release Pull Request or Publish to npm
id: changesets
# pinned for security, always review third party action code before updating
uses: changesets/action@e0145edc7d9d8679003495b11f87bd8ef63c0cba # v1.5.3
with:
# This expects you to have a script called changeset:version version that calls changeset version and updated what it needs to be updated
version: pnpm changeset:version
# This expects you to have a script called release which does a build for your packages and calls changeset publish
publish: pnpm release
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
NPM_CONFIG_PROVENANCE: true
publish-mcp:
needs: release
if: needs.release.outputs.published == 'true'
uses: ./.github/workflows/publish-mcp.yml
secrets:
MCP_KEY: ${{ secrets.MCP_KEY }}

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@@ -13,17 +13,17 @@ jobs:
steps:
- name: Checkout Repository
uses: actions/checkout@v6
uses: actions/checkout@v4
- name: Setup pnpm
uses: pnpm/action-setup@v4
with:
version: 10.27.0
version: 10
- name: Setup Node.js
uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
uses: actions/setup-node@v4
with:
node-version: '24'
node-version: '22'
cache: 'pnpm'
- name: Install dependencies

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@@ -1,78 +0,0 @@
name: Update OpenCode JSON Schema
on:
push:
branches:
- main
paths:
- 'packages/opencode/config.ts'
permissions:
contents: write
pull-requests: write
jobs:
update-docs:
# prevents this action from running on forks
if: github.repository == 'sveltejs/mcp'
name: Update OpenCode JSON Schema
runs-on: ubuntu-latest
steps:
- name: Checkout
uses: actions/checkout@v6
with:
fetch-depth: 0
- name: Setup Node.js
uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
with:
node-version: 24
package-manager-cache: false # pnpm is not installed yet
- name: Install pnpm
shell: bash
run: |
PNPM_VER=$(jq -r '.packageManager | if .[0:5] == "pnpm@" then .[5:] else "packageManager in package.json does not start with pnpm@\n" | halt_error(1) end' package.json)
echo installing pnpm version $PNPM_VER
npm i -g pnpm@$PNPM_VER
- name: Setup Node.js with pnpm cache
uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
with:
node-version: 24
package-manager-cache: true # caches pnpm via packageManager field in package.json
cache: 'pnpm'
- name: Install dependencies
run: pnpm install --frozen-lockfile --prefer-offline --ignore-scripts
- name: Generate opencode JSON schema
run: pnpm generate-opencode-jsonschema
- name: Check for changes
id: git-check
run: |
git diff --exit-code packages/opencode/schema.json || echo "changed=true" >> $GITHUB_OUTPUT
- name: Create Pull Request
if: steps.git-check.outputs.changed == 'true'
uses: peter-evans/create-pull-request@98357b18bf14b5342f975ff684046ec3b2a07725 # v8.0.0
with:
token: ${{ secrets.GITHUB_TOKEN }}
commit-message: 'docs: update opencode JSON schema'
branch: docs/update-opencode-jsonschema
delete-branch: true
title: 'docs: update opencode JSON schema'
body: |
## Summary
Automatically generated update for OpenCode JSON schema.
This PR was triggered by changes to the OpenCode configuration file `packages/opencode/config.ts`.
## Changes
- Updated `packages/opencode/schema.json` with latest JSON schema
## Generated by
GitHub Action: Update OpenCode JSON Schema
labels: |
automated

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@@ -1,79 +0,0 @@
name: Update Prompt Documentation
on:
push:
branches:
- main
paths:
- 'packages/mcp-server/src/mcp/handlers/prompts/**'
permissions:
contents: write
pull-requests: write
jobs:
update-docs:
# prevents this action from running on forks
if: github.repository == 'sveltejs/mcp'
name: Update Prompt Documentation
runs-on: ubuntu-latest
steps:
- name: Checkout
uses: actions/checkout@v6
with:
fetch-depth: 0
- name: Setup Node.js
uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
with:
node-version: 24
package-manager-cache: false # pnpm is not installed yet
- name: Install pnpm
shell: bash
run: |
PNPM_VER=$(jq -r '.packageManager | if .[0:5] == "pnpm@" then .[5:] else "packageManager in package.json does not start with pnpm@\n" | halt_error(1) end' package.json)
echo installing pnpm version $PNPM_VER
npm i -g pnpm@$PNPM_VER
- name: Setup Node.js with pnpm cache
uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
with:
node-version: 24
package-manager-cache: true # caches pnpm via packageManager field in package.json
cache: 'pnpm'
- name: Install dependencies
run: pnpm install --frozen-lockfile --prefer-offline --ignore-scripts
- name: Generate prompt documentation
run: pnpm generate-prompt-docs
- name: Check for changes
id: git-check
run: |
git diff --exit-code documentation/docs/30-capabilities/30-prompts.md || echo "changed=true" >> $GITHUB_OUTPUT
- name: Create Pull Request
if: steps.git-check.outputs.changed == 'true'
uses: peter-evans/create-pull-request@98357b18bf14b5342f975ff684046ec3b2a07725 # v8.0.0
with:
token: ${{ secrets.GITHUB_TOKEN }}
commit-message: 'docs: update prompts documentation'
branch: docs/update-prompt-docs
delete-branch: true
title: 'docs: update prompt documentation'
body: |
## Summary
Automatically generated documentation update for MCP prompts.
This PR was triggered by changes to the prompts folder in `packages/mcp-server/src/mcp/handlers/prompts/`.
## Changes
- Updated `documentation/docs/30-capabilities/30-prompts.md` with latest prompt definitions
## Generated by
GitHub Action: Update Prompt Documentation
labels: |
documentation
automated

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@@ -1,9 +1,8 @@
{
"mcpServers": {
"svelte": {
"type": "stdio",
"command": "node",
"args": ["packages/mcp-stdio/dist/index.js"]
"svelte-llm": {
"type": "http",
"url": "https://svelte-llm.stanislav.garden/mcp/mcp"
}
}
}

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@@ -8,10 +8,4 @@ bun.lockb
# Miscellaneous
/static/
/drizzle/
/**/.svelte-kit/*
# Claude Code
.claude/
.changeset/
/packages/opencode/schema.json
/**/.svelte-kit/*

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@@ -12,7 +12,6 @@
"body": [
"import type { SvelteMcp } from '../../index.js';",
"import * as v from 'valibot';",
"import { icons } from '../../icons/index.js';",
"",
"export function ${1:function_name}(server: SvelteMcp) {",
"\t$0",
@@ -24,71 +23,11 @@
"scope": "javascript,typescript",
"prefix": "!autofixer",
"body": [
"import type { Autofixer } from './index.js';",
"import type { Autofixer } from '.';",
"export const ${1:autofixer_name}: Autofixer = {",
"\t$0",
"};",
],
"description": "Create a setup export for an autofixer",
},
"Prompt Generator": {
"scope": "javascript,typescript",
"prefix": "!prompt",
"body": [
"import type { SvelteMcp } from '../../index.js';",
"import { icons } from '../../icons/index.js';",
"",
"/**",
" * Function that actually generates the prompt string. You can use this in the MCP server handler to generate the prompt, it can accept arguments",
" * if needed (it will always be invoked manually so it's up to you to provide the arguments).",
" */",
"function ${1:prompt_name}() {",
"\treturn `$0`;",
"}",
"",
"/**",
" * This function is used to generate the prompt to update the docs in the script `/scripts/update-docs-prompts.ts` it should use the default export",
" * function and pass in the arguments. Since it will be included in the documentation if it's an argument that the MCP will expose it should",
" * be in the format [NAME_OF_THE_ARGUMENT] to signal the user that it can substitute it.",
" * ",
" * The name NEEDS to be `generate_for_docs`.",
" */",
"export async function generate_for_docs() {",
"\treturn ${1:prompt_name}();",
"}",
"",
"/**",
" * Human readable description of what the prompt does. It will be included in the documentation.",
" * ",
" * The name NEEDS to be `docs_description`.",
" */",
"export const docs_description = '';",
"",
"export function setup_${1:prompt_name}(server: SvelteMcp) {",
"\tserver.prompt(",
"\t\t{",
"\t\t\tname: '${1:prompt_name}',",
"\t\t\ttitle: '${2:title}',",
"\t\t\tdescription:",
"\t\t\t\t'${3:llm_description}',",
"\t\t\ticons,",
"\t\t},",
"\t\tasync () => {",
"\t\t\treturn {",
"\t\t\t\tmessages: [",
"\t\t\t\t\t{",
"\t\t\t\t\t\trole: 'assistant',",
"\t\t\t\t\t\tcontent: {",
"\t\t\t\t\t\t\ttype: 'text',",
"\t\t\t\t\t\t\ttext: ${1:prompt_name}(),",
"\t\t\t\t\t\t},",
"\t\t\t\t\t},",
"\t\t\t\t],",
"\t\t\t};",
"\t\t},",
"\t);",
"}",
],
"description": "Create a setup export for a prompt generator",
},
}

2
.vscode/mcp.json vendored
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@@ -3,7 +3,7 @@
"Svelte MCP": {
"type": "stdio",
"command": "node",
"args": ["packages/mcp-stdio/dist/index.js"]
"args": ["dist/lib/stdio.js"]
}
},
"inputs": []

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@@ -90,12 +90,12 @@ When connected to the svelte-llm MCP server, you have access to comprehensive Sv
## Available MCP Tools:
### 1. list-sections
### 1. list_sections
Use this FIRST to discover all available documentation sections. Returns a structured list with titles and paths.
When asked about Svelte or SvelteKit topics, ALWAYS use this tool at the start of the chat to find relevant sections.
### 2. get-documentation
### 2. get_documentation
Retrieves full documentation content for specific sections. Accepts single or multiple sections.
After calling the list-sections tool, you MUST analyze the returned documentation sections and then use the get_documentation tool to fetch ALL documentation sections that are relevant for the users task.
After calling the list_sections tool, you MUST analyze the returned documentation sections and then use the get_documentation tool to fetch ALL documentation sections that are relevant for the users task.

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@@ -6,7 +6,7 @@ Repo for the official Svelte MCP server.
```
pnpm i
cp apps/mcp-remote/.env.example apps/mcp-remote/.env
cp .env.example .env
pnpm dev
```

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@@ -1,3 +1,4 @@
DATABASE_URL=file:test.db
DATABASE_TOKEN=needs_to_be_set_but_it_can_be_anything
VOYAGE_API_KEY=your_actual_api_key_here
VOYAGE_API_KEY=your_actual_api_key_here
GITHUB_WEBHOOK_SECRET=some_secret

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@@ -37,35 +37,35 @@
],
"private": true,
"devDependencies": {
"@eslint/compat": "catalog:lint",
"@eslint/js": "catalog:lint",
"@libsql/client": "catalog:orm",
"@modelcontextprotocol/inspector": "catalog:ai",
"@sveltejs/adapter-vercel": "catalog:svelte",
"@sveltejs/kit": "catalog:svelte",
"@sveltejs/vite-plugin-svelte": "catalog:svelte",
"@types/node": "catalog:tooling",
"@typescript-eslint/parser": "catalog:lint",
"drizzle-kit": "catalog:orm",
"drizzle-orm": "catalog:orm",
"eslint-config-prettier": "catalog:lint",
"eslint-plugin-svelte": "catalog:lint",
"globals": "catalog:lint",
"prettier": "catalog:lint",
"prettier-plugin-svelte": "catalog:lint",
"svelte": "catalog:svelte",
"svelte-check": "catalog:svelte",
"svelte-eslint-parser": "catalog:lint",
"typescript": "catalog:tooling",
"vite": "catalog:tooling",
"vite-plugin-devtools-json": "catalog:tooling",
"vitest": "catalog:tooling"
"@eslint/compat": "^1.3.2",
"@eslint/js": "^9.36.0",
"@libsql/client": "^0.14.0",
"@modelcontextprotocol/inspector": "^0.16.7",
"@sveltejs/adapter-vercel": "^5.6.3",
"@sveltejs/kit": "^2.22.0",
"@sveltejs/vite-plugin-svelte": "^6.0.0",
"@types/node": "^24.3.1",
"@typescript-eslint/parser": "^8.44.0",
"drizzle-kit": "^0.30.2",
"drizzle-orm": "^0.40.0",
"eslint-config-prettier": "^10.0.1",
"eslint-plugin-svelte": "^3.12.3",
"globals": "^16.0.0",
"prettier": "^3.4.2",
"prettier-plugin-svelte": "^3.3.3",
"svelte": "^5.0.0",
"svelte-check": "^4.0.0",
"svelte-eslint-parser": "^1.3.2",
"typescript": "^5.0.0",
"vite": "^7.0.4",
"vite-plugin-devtools-json": "^1.0.0",
"vitest": "^3.2.3"
},
"dependencies": {
"@sveltejs/mcp-schema": "workspace:^",
"@sveltejs/mcp-server": "workspace:^",
"@tmcp/transport-http": "catalog:tmcp",
"@vercel/analytics": "catalog:tooling",
"tmcp": "catalog:tmcp"
"@tmcp/transport-http": "^0.6.3",
"tmcp": "^1.14.0",
"valibot": "^1.1.0"
}
}

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@@ -1,29 +1,9 @@
import { dev } from '$app/environment';
import { http_transport } from '$lib/mcp/index.js';
import { db } from '$lib/server/db/index.js';
import { redirect } from '@sveltejs/kit';
import { track } from '@vercel/analytics/server';
export async function handle({ event, resolve }) {
if (event.request.method === 'GET') {
const accept = event.request.headers.get('accept');
if (accept) {
const accepts = accept.split(',');
if (!accepts.includes('text/event-stream')) {
// the request it's a browser request, not an MCP client request
// it means someone probably opened it from the docs...we should redirect to the docs
redirect(302, 'https://svelte.dev/docs/mcp/overview');
}
}
}
const mcp_response = await http_transport.respond(event.request, {
db,
// only add analytics in production
track: dev
? undefined
: async (session_id, event, extra) => {
await track(event, { session_id, ...(extra ? { extra } : {}) });
},
});
// we are deploying on vercel the SSE connection will timeout after 5 minutes...for
// the moment we are not sending back any notifications (logs, or list changed notifications)
@@ -33,14 +13,11 @@ export async function handle({ event, resolve }) {
// 200 or the MCP client will complain)
if (mcp_response && event.request.method === 'GET') {
try {
return mcp_response;
} finally {
try {
await mcp_response.body?.cancel();
} catch {
// ignore
}
await mcp_response.body?.cancel();
} catch {
// ignore
}
return new Response('', { status: 200 });
}
return mcp_response ?? resolve(event);
}

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@@ -3,5 +3,4 @@ import { HttpTransport } from '@tmcp/transport-http';
export const http_transport = new HttpTransport(server, {
cors: true,
path: '/mcp',
});

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@@ -0,0 +1,32 @@
import * as v from 'valibot';
// not the full schema but it contains the information we need
export const github_webhook_schema = v.object({
action: v.union([v.literal('closed')]),
pull_request: v.object({
patch_url: v.string(),
merged: v.boolean(),
user: v.object({
login: v.string(),
}),
}),
});
export const github_content_schema = v.object({
name: v.string(),
path: v.string(),
sha: v.string(),
size: v.number(),
url: v.string(),
html_url: v.string(),
git_url: v.string(),
download_url: v.nullable(v.string()),
type: v.literal('file'),
content: v.string(),
encoding: v.literal('base64'),
_links: v.object({
self: v.string(),
git: v.string(),
html: v.string(),
}),
});

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import { createClient } from '@libsql/client';
import { drizzle } from 'drizzle-orm/libsql';
import * as schema from './schema.js';
// let's disable it for the moment...i can't figure out a way to make it wotk with eslint
// eslint-disable-next-line import/extensions
import { DATABASE_TOKEN, DATABASE_URL } from '$env/static/private';
if (!DATABASE_URL) throw new Error('DATABASE_URL is not set');
if (!DATABASE_TOKEN) throw new Error('DATABASE_TOKEN is not set');

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import { github_content_schema, github_webhook_schema } from '$lib/schemas/index.js';
import * as v from 'valibot';
export async function POST({ request, fetch }) {
const body = await request.json();
// TODO add secret validation
const validated_pull_request = v.safeParse(github_webhook_schema, body);
if (!validated_pull_request.success) {
return new Response('Invalid payload', { status: 400 });
}
const { pull_request } = validated_pull_request.output;
if (!pull_request.merged) {
return new Response(null, { status: 204 });
}
const patch = await fetch(pull_request.patch_url);
if (!patch.ok) {
return new Response('Failed to fetch patch', { status: 500 });
}
const patch_text = await patch.text();
const files = [
...patch_text.matchAll(
/^diff --git\sa\/(?<file>.+?)\sb\/\1\n(?:(?<action>deleted|new)\sfile mode)?/gm,
),
].map((res) => ({ file: res.groups!.file, action: res.groups?.action ?? 'modified' }));
for (const file of files) {
if (file.action === 'deleted') {
// delete path from db
continue;
}
const new_file_content = await fetch(
`https://api.github.com/repos/sveltejs/svelte.dev/contents/${file.file}`,
);
if (!new_file_content.ok) {
// push file in queue and try again later?
continue;
}
const new_file_json = await new_file_content.json();
const validated_content = v.safeParse(github_content_schema, new_file_json);
if (!validated_content.success) {
// push file in queue and try again later?
continue;
}
const content = Buffer.from(validated_content.output.content, 'base64').toString('utf-8');
// save content and distilled content in the db
console.log({ content, file: file.file });
}
return new Response(null, { status: 204 });
}

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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M416.9 93.1c-41.1-58.9-122.4-76.3-181.2-38.9L132.5 120c-28.2 17.7-47.6 46.5-53.5 79.3-4.9 27.3-.6 55.5 12.3 80-8.8 13.4-14.9 28.5-17.7 44.2-5.9 33.4 1.8 67.8 21.6 95.4 41.2 58.9 122.4 76.3 181.2 38.9L379.6 392c28.2-17.7 47.6-46.5 53.5-79.3 4.9-27.3.6-55.5-12.3-80 8.8-13.4 14.9-28.4 17.7-44.2 5.8-33.4-1.9-67.8-21.6-95.4" style="fill:#ff3e00"/><path d="M225.6 424.5c-33.3 8.6-68.4-4.4-88-32.6-11.9-16.6-16.5-37.3-13-57.4.6-3.3 1.4-6.5 2.5-9.6l1.9-5.9 5.3 3.9c12.2 9 25.9 15.8 40.4 20.2l3.8 1.2-.4 3.8c-.5 5.4 1 10.9 4.2 15.3 5.9 8.5 16.5 12.4 26.5 9.8 2.2-.6 4.4-1.5 6.3-2.8l103.2-65.8c5.1-3.2 8.6-8.4 9.7-14.4 1.1-6.1-.3-12.3-3.9-17.3-5.9-8.5-16.5-12.4-26.5-9.8-2.2.6-4.4 1.5-6.3 2.8L252 291c-6.5 4.1-13.5 7.2-21 9.2-33.3 8.6-68.4-4.4-88-32.6-11.9-16.6-16.5-37.3-13-57.4 3.5-19.7 15.2-37 32.2-47.7l103.2-65.8c6.5-4.1 13.5-7.2 21-9.2 33.3-8.6 68.4 4.4 88 32.6 11.9 16.6 16.5 37.3 13 57.4-.6 3.3-1.4 6.5-2.5 9.6L383 193l-5.3-3.9c-12.2-9-25.9-15.8-40.4-20.2l-3.8-1.2.4-3.8c.5-5.4-1-10.9-4.2-15.3-5.9-8.5-16.5-12.4-26.5-9.8-2.2.6-4.4 1.5-6.3 2.8l-103.2 65.8c-5.1 3.2-8.6 8.4-9.7 14.4-1.1 6.1.3 12.3 3.9 17.3 5.9 8.5 16.5 12.4 26.5 9.8 2.2-.6 4.4-1.5 6.3-2.8L260 221c6.5-4.1 13.5-7.2 21-9.2 33.3-8.6 68.4 4.4 88 32.6 11.9 16.6 16.5 37.3 13 57.4-3.5 19.7-15.2 37-32.2 47.7l-103.2 65.8c-6.5 4.1-13.6 7.2-21 9.2" style="fill:#fff"/></svg>

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---
title: Overview
---
The Svelte MCP ([Model Context Protocol](https://modelcontextprotocol.io/docs/getting-started/intro)) server can help your LLM or agent of choice write better Svelte code. It works by providing documentation relevant to the task at hand, and statically analysing generated code so that it can suggest fixes and best practices.
## Setup
The setup varies based on the version of the MCP you prefer — remote or local — and your chosen MCP client (e.g. Claude Code, Codex CLI or GitHub Copilot):
- [local setup](local-setup) using `@sveltejs/mcp`
- [remote setup](remote-setup) using `https://mcp.svelte.dev/mcp`
## Usage
To get the most out of the MCP server we recommend including the following prompt in your [`AGENTS.md`](https://agents.md) (or [`CLAUDE.md`](https://docs.claude.com/en/docs/claude-code/memory#claude-md-imports), if using Claude Code. Or [`GEMINI.md`](https://geminicli.com/docs/cli/gemini-md/), if using GEMINI). This will tell the LLM which tools are available and when it's appropriate to use them.
> [!NOTE] This is already setup for you when using `npx sv add mcp`
```md
You are able to use the Svelte MCP server, where you have access to comprehensive Svelte 5 and SvelteKit documentation. Here's how to use the available tools effectively:
## Available MCP Tools:
### 1. list-sections
Use this FIRST to discover all available documentation sections. Returns a structured list with titles, use_cases, and paths.
When asked about Svelte or SvelteKit topics, ALWAYS use this tool at the start of the chat to find relevant sections.
### 2. get-documentation
Retrieves full documentation content for specific sections. Accepts single or multiple sections.
After calling the list-sections tool, you MUST analyze the returned documentation sections (especially the use_cases field) and then use the get-documentation tool to fetch ALL documentation sections that are relevant for the user's task.
### 3. svelte-autofixer
Analyzes Svelte code and returns issues and suggestions.
You MUST use this tool whenever writing Svelte code before sending it to the user. Keep calling it until no issues or suggestions are returned.
### 4. playground-link
Generates a Svelte Playground link with the provided code.
After completing the code, ask the user if they want a playground link. Only call this tool after user confirmation and NEVER if code was written to files in their project.
```
If your MCP client supports it, we also recommend using the [svelte-task](prompts#svelte-task) prompt to instruct the LLM on the best way to use the MCP server.

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---
title: Introduction
---

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---
title: Local setup
---
The local (or stdio) version of the MCP server is available via the [`@sveltejs/mcp`](https://www.npmjs.com/package/@sveltejs/mcp) npm package. You can either install it globally and then reference it in your configuration or run it with `npx`:
```bash
npx -y @sveltejs/mcp
```
Here's how to set it up in some common MCP clients:
## Claude Code
To include the local MCP version in Claude Code, simply run the following command:
```bash
claude mcp add -t stdio -s [scope] svelte -- npx -y @sveltejs/mcp
```
The `[scope]` must be `user`, `project` or `local`.
## Claude Desktop
In the Settings > Developer section, click on Edit Config. It will open the folder with a `claude_desktop_config.json` file in it. Edit the file to include the following configuration:
```json
{
"mcpServers": {
"svelte": {
"command": "npx",
"args": ["-y", "@sveltejs/mcp"]
}
}
}
```
## Codex CLI
Add the following to your `config.toml` (which defaults to `~/.codex/config.toml`, but refer to [the configuration documentation](https://github.com/openai/codex/blob/main/docs/config.md) for more advanced setups):
```toml
[mcp_servers.svelte]
command = "npx"
args = ["-y", "@sveltejs/mcp"]
```
## Gemini CLI
To include the local MCP version in Gemini CLI, simply run the following command:
```bash
gemini mcp add -t stdio -s [scope] svelte npx -y @sveltejs/mcp
```
The `[scope]` must be `user`, `project` or `local`.
## OpenCode
You can automatically configure the MCP server using the [OpenCode plugin](opencode-plugin) (recommended). If you prefer to configure the MCP server manually, run:
```bash
opencode mcp add
```
and follow the instructions, selecting 'Local' under the 'Select MCP server type' prompt:
```bash
opencode mcp add
┌ Add MCP server
◇ Enter MCP server name
│ svelte
◇ Select MCP server type
│ Local
◆ Enter command to run
│ npx -y @sveltejs/mcp
```
## VS Code
- Open the command palette
- Select "MCP: Add Server..."
- Select "Command (stdio)"
- Insert `npx -y @sveltejs/mcp` in the input and press `Enter`
- When prompted for a name, insert `svelte`
- Select if you want to add it as a `Global` or `Workspace` MCP server
## Cursor
- Open the command palette
- Select "View: Open MCP Settings"
- Click on "Add custom MCP"
It will open a file with your MCP servers where you can add the following configuration:
```json
{
"mcpServers": {
"svelte": {
"command": "npx",
"args": ["-y", "@sveltejs/mcp"]
}
}
}
```
## Zed
Install the [Svelte MCP Server extension](https://zed.dev/extensions/svelte-mcp).
<details>
<summary>Configure Manually</summary>
- Open the command palette
- Search and select "agent:open settings"
- In settings panel look for `Model Context Protocol (MCP) Servers`
- Click on "Add Server"
- Select: "Add Custom Server"
It will open a popup with MCP server config where you can add the following configuration:
```json
{
"svelte": {
"command": "npx",
"args": ["-y", "@sveltejs/mcp"]
}
}
```
</details>
## Other clients
If we didn't include the MCP client you are using, refer to their documentation for `stdio` servers and use `npx` as the command and `-y @sveltejs/mcp` as the arguments.

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---
title: Remote setup
---
The remote version of the MCP server is available at `https://mcp.svelte.dev/mcp`.
Here's how to set it up in some common MCP clients:
## Claude Code
To include the remote MCP version in Claude Code, simply run the following command:
```bash
claude mcp add -t http -s [scope] svelte https://mcp.svelte.dev/mcp
```
You can choose your preferred `scope` (it must be `user`, `project` or `local`) and `name`.
If you prefer you can also install the `svelte` plugin in [the Svelte Claude Code Marketplace](plugin) that will give you both the remote server and a useful [skill](https://docs.claude.com/en/docs/agents-and-tools/agent-skills/overview).
## Claude Desktop
- Open Settings > Connectors
- Click on Add Custom Connector
- When prompted for a name, enter `svelte`
- Under the Remote MCP server URL input, use `https://mcp.svelte.dev/mcp`
- Click Add
## Codex CLI
Add the following to your `config.toml` (which defaults to `~/.codex/config.toml`, but refer to [the configuration documentation](https://github.com/openai/codex/blob/main/docs/config.md) for more advanced setups):
```toml
experimental_use_rmcp_client = true
[mcp_servers.svelte]
url = "https://mcp.svelte.dev/mcp"
```
## Gemini CLI
To use the remote MCP server with Gemini CLI, simply run the following command:
```bash
gemini mcp add -t http -s [scope] svelte https://mcp.svelte.dev/mcp
```
The `[scope]` must be `user` or `project`.
## OpenCode
You can automatically configure the MCP server using the [OpenCode plugin](opencode-plugin) (recommended). If you prefer to configure the MCP server manually, run:
```bash
opencode mcp add
```
and follow the instructions, selecting 'Remote' under the 'Select MCP server type' prompt:
```bash
opencode mcp add
┌ Add MCP server
◇ Enter MCP server name
│ svelte
◇ Select MCP server type
│ Remote
◇ Enter MCP server URL
│ https://mcp.svelte.dev/mcp
```
## VS Code
- Open the command palette
- Select "MCP: Add Server..."
- Select "HTTP (HTTP or Server-Sent-Events)"
- Insert `https://mcp.svelte.dev/mcp` in the input and press `Enter`
- Insert your preferred name
- Select if you want to add it as a `Global` or `Workspace` MCP server
## Cursor
- Open the command palette
- Select "View: Open MCP Settings"
- Click on "Add custom MCP"
It will open a file with your MCP servers where you can add the following configuration:
```json
{
"mcpServers": {
"svelte": {
"url": "https://mcp.svelte.dev/mcp"
}
}
}
```
## GitHub Coding Agent
- Open your repository in GitHub
- Go to Settings
- Open Copilot > Coding agent
- Edit the MCP configuration
```json
{
"mcpServers": {
"svelte": {
"type": "http",
"url": "https://mcp.svelte.dev/mcp",
"tools": ["*"]
}
}
}
```
- Click _Save MCP configuration_
## Other clients
If we didn't include the MCP client you are using, refer to their documentation for `remote` servers and use `https://mcp.svelte.dev/mcp` as the URL.

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---
title: Setup
---

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---
title: Tools
---
The following tools are provided by the MCP server to the model you are using, which can decide to call one or more of them during a session:
## list-sections
Provides a list of all the available documentation sections.
## get-documentation
Allows the model to get the full (and up-to-date) documentation for the requested sections directly from [svelte.dev/docs](/docs).
## svelte-autofixer
Uses static analysis to provide suggestions for code that your LLM generates. It can be invoked in an agentic loop by your model until all issues and suggestions are resolved.
## playground-link
Generates an ephemeral playground link with the generated code. It's useful when the generated code is not written to a file in your project and you want to quickly test the generated solution. The code is not stored anywhere except the URL itself (which will often, as a consequence, be quite large).

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---
title: Resources
---
This is the list of available resources provided by the MCP server. Resources are included by the user (not by the LLM) and are useful if you want to include specific knowledge in your session. For example, if you know that the component will need to use transitions you can include the transition documentation directly without asking the LLM to do it for you.
## doc-section
This dynamic resource allows you to add every section of the Svelte documentation as a resource. The URI looks like this `svelte://slug-of-the-docs.md` and the returned resource will contain the `llms.txt` version of the specific page you selected.

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---
title: Prompts
---
This is the list of available prompts provided by the MCP server. Prompts are selected by the user and are sent as a user message. They can be useful to write repetitive instructions for the LLM on how to properly use the MCP server.
## svelte-task
This prompt should be used whenever you are asking the model to work on a Svelte-related task. It will instruct the LLM which documentation sections are available, which tools to invoke, when to invoke them, and how to interpret the results.
<details>
<summary>Copy the prompt</summary>
```md
You are a Svelte expert tasked to build components and utilities for Svelte developers. If you need documentation for anything related to Svelte you can invoke the tool `get-documentation` with one of the following paths. However: before invoking the `get-documentation` tool, try to answer the users query using your own knowledge and the `svelte-autofixer` tool. Be mindful of how many section you request, since it is token-intensive!
<available-docs>
- title: Overview, use_cases: project setup, creating new svelte apps, scaffolding, cli tools, initializing projects, path: cli/overview
- title: Frequently asked questions, use_cases: project setup, initializing new svelte projects, troubleshooting cli installation, package manager configuration, path: cli/faq
- title: sv create, use_cases: project setup, starting new sveltekit app, initializing project, creating from playground, choosing project template, path: cli/sv-create
- title: sv add, use_cases: project setup, adding features to existing projects, integrating tools, testing setup, styling setup, authentication, database setup, deployment adapters, path: cli/sv-add
- title: sv check, use_cases: code quality, ci/cd pipelines, error checking, typescript projects, pre-commit hooks, finding unused css, accessibility auditing, production builds, path: cli/sv-check
- title: sv migrate, use_cases: migration, upgrading svelte versions, upgrading sveltekit versions, modernizing codebase, svelte 3 to 4, svelte 4 to 5, sveltekit 1 to 2, adopting runes, refactoring deprecated apis, path: cli/sv-migrate
- title: devtools-json, use_cases: development setup, chrome devtools integration, browser-based editing, local development workflow, debugging setup, path: cli/devtools-json
- title: drizzle, use_cases: database setup, sql queries, orm integration, data modeling, postgresql, mysql, sqlite, server-side data access, database migrations, type-safe queries, path: cli/drizzle
- title: eslint, use_cases: code quality, linting, error detection, project setup, code standards, team collaboration, typescript projects, path: cli/eslint
- title: lucia, use_cases: authentication, login systems, user management, registration pages, session handling, auth setup, path: cli/lucia
- title: mcp, use_cases: use title and path to estimate use case, path: cli/mcp
- title: mdsvex, use_cases: blog, content sites, markdown rendering, documentation sites, technical writing, cms integration, article pages, path: cli/mdsvex
- title: paraglide, use_cases: internationalization, multi-language sites, i18n, translation, localization, language switching, global apps, multilingual content, path: cli/paraglide
- title: playwright, use_cases: browser testing, e2e testing, integration testing, test automation, quality assurance, ci/cd pipelines, testing user flows, path: cli/playwright
- title: prettier, use_cases: code formatting, project setup, code style consistency, team collaboration, linting configuration, path: cli/prettier
- title: storybook, use_cases: component development, design systems, ui library, isolated component testing, documentation, visual testing, component showcase, path: cli/storybook
- title: sveltekit-adapter, use_cases: deployment, production builds, hosting setup, choosing deployment platform, configuring adapters, static site generation, node server, vercel, cloudflare, netlify, path: cli/sveltekit-adapter
- title: tailwindcss, use_cases: project setup, styling, css framework, rapid prototyping, utility-first css, design systems, responsive design, adding tailwind to svelte, path: cli/tailwind
- title: vitest, use_cases: testing, unit tests, component testing, test setup, quality assurance, ci/cd pipelines, test-driven development, path: cli/vitest
- title: Introduction, use_cases: learning sveltekit, project setup, understanding framework basics, choosing between svelte and sveltekit, getting started with full-stack apps, path: kit/introduction
- title: Creating a project, use_cases: project setup, starting new sveltekit app, initial development environment, first-time sveltekit users, scaffolding projects, path: kit/creating-a-project
- title: Project types, use_cases: deployment, project setup, choosing adapters, ssg, spa, ssr, serverless, mobile apps, desktop apps, pwa, offline apps, browser extensions, separate backend, docker containers, path: kit/project-types
- title: Project structure, use_cases: project setup, understanding file structure, organizing code, starting new project, learning sveltekit basics, path: kit/project-structure
- title: Web standards, use_cases: always, any sveltekit project, data fetching, forms, api routes, server-side rendering, deployment to various platforms, path: kit/web-standards
- title: Routing, use_cases: routing, navigation, multi-page apps, project setup, file structure, api endpoints, data loading, layouts, error pages, always, path: kit/routing
- title: Loading data, use_cases: data fetching, api calls, database queries, dynamic routes, page initialization, loading states, authentication checks, ssr data, form data, content rendering, path: kit/load
- title: Form actions, use_cases: forms, user input, data submission, authentication, login systems, user registration, progressive enhancement, validation errors, path: kit/form-actions
- title: Page options, use_cases: prerendering static sites, ssr configuration, spa setup, client-side rendering control, url trailing slash handling, adapter deployment config, build optimization, path: kit/page-options
- title: State management, use_cases: sveltekit, server-side rendering, ssr, state management, authentication, data persistence, load functions, context api, navigation, component lifecycle, path: kit/state-management
- title: Remote functions, use_cases: data fetching, server-side logic, database queries, type-safe client-server communication, forms, user input, mutations, authentication, crud operations, optimistic updates, path: kit/remote-functions
- title: Building your app, use_cases: production builds, deployment preparation, build process optimization, adapter configuration, preview before deployment, path: kit/building-your-app
- title: Adapters, use_cases: deployment, production builds, hosting setup, choosing deployment platform, configuring adapters, path: kit/adapters
- title: Zero-config deployments, use_cases: deployment, production builds, hosting setup, choosing deployment platform, ci/cd configuration, path: kit/adapter-auto
- title: Node servers, use_cases: deployment, production builds, node.js hosting, custom server setup, environment configuration, reverse proxy setup, docker deployment, systemd services, path: kit/adapter-node
- title: Static site generation, use_cases: static site generation, ssg, prerendering, deployment, github pages, spa mode, blogs, documentation sites, marketing sites, path: kit/adapter-static
- title: Single-page apps, use_cases: spa mode, single-page apps, client-only rendering, static hosting, mobile app wrappers, no server-side logic, adapter-static setup, fallback pages, path: kit/single-page-apps
- title: Cloudflare, use_cases: deployment, cloudflare workers, cloudflare pages, hosting setup, production builds, serverless deployment, edge computing, path: kit/adapter-cloudflare
- title: Cloudflare Workers, use_cases: deploying to cloudflare workers, cloudflare workers sites deployment, legacy cloudflare adapter, wrangler configuration, cloudflare platform bindings, path: kit/adapter-cloudflare-workers
- title: Netlify, use_cases: deployment, netlify hosting, production builds, serverless functions, edge functions, static site hosting, path: kit/adapter-netlify
- title: Vercel, use_cases: deployment, vercel hosting, production builds, serverless functions, edge functions, isr, image optimization, environment variables, path: kit/adapter-vercel
- title: Writing adapters, use_cases: custom deployment, building adapters, unsupported platforms, adapter development, custom hosting environments, path: kit/writing-adapters
- title: Advanced routing, use_cases: advanced routing, dynamic routes, file viewers, nested paths, custom 404 pages, url validation, route parameters, multi-level navigation, path: kit/advanced-routing
- title: Hooks, use_cases: authentication, logging, error tracking, request interception, api proxying, custom routing, internationalization, database initialization, middleware logic, session management, path: kit/hooks
- title: Errors, use_cases: error handling, custom error pages, 404 pages, api error responses, production error logging, error tracking, type-safe errors, path: kit/errors
- title: Link options, use_cases: routing, navigation, multi-page apps, performance optimization, link preloading, forms with get method, search functionality, focus management, scroll behavior, path: kit/link-options
- title: Service workers, use_cases: offline support, pwa, caching strategies, performance optimization, precaching assets, network resilience, progressive web apps, path: kit/service-workers
- title: Server-only modules, use_cases: api keys, environment variables, sensitive data protection, backend security, preventing data leaks, server-side code isolation, path: kit/server-only-modules
- title: Snapshots, use_cases: forms, user input, preserving form data, multi-step forms, navigation state, preventing data loss, textarea content, input fields, comment systems, surveys, path: kit/snapshots
- title: Shallow routing, use_cases: modals, dialogs, image galleries, overlays, history-driven ui, mobile-friendly navigation, photo viewers, lightboxes, drawer menus, path: kit/shallow-routing
- title: Observability, use_cases: performance monitoring, debugging, observability, tracing requests, production diagnostics, analyzing slow requests, finding bottlenecks, monitoring server-side operations, path: kit/observability
- title: Packaging, use_cases: building component libraries, publishing npm packages, creating reusable svelte components, library development, package distribution, path: kit/packaging
- title: Auth, use_cases: authentication, login systems, user management, session handling, jwt tokens, protected routes, user credentials, authorization checks, path: kit/auth
- title: Performance, use_cases: performance optimization, slow loading pages, production deployment, debugging performance issues, reducing bundle size, improving load times, path: kit/performance
- title: Icons, use_cases: icons, ui components, styling, css frameworks, tailwind, unocss, performance optimization, dependency management, path: kit/icons
- title: Images, use_cases: image optimization, responsive images, performance, hero images, product photos, galleries, cms integration, cdn setup, asset management, path: kit/images
- title: Accessibility, use_cases: always, any sveltekit project, screen reader support, keyboard navigation, multi-page apps, client-side routing, internationalization, multilingual sites, path: kit/accessibility
- title: SEO, use_cases: seo optimization, search engine ranking, content sites, blogs, marketing sites, public-facing apps, sitemaps, amp pages, meta tags, performance optimization, path: kit/seo
- title: Frequently asked questions, use_cases: troubleshooting package imports, library compatibility issues, client-side code execution, external api integration, middleware setup, database configuration, view transitions, yarn configuration, path: kit/faq
- title: Integrations, use_cases: project setup, css preprocessors, postcss, scss, sass, less, stylus, typescript setup, adding integrations, tailwind, testing, auth, linting, formatting, path: kit/integrations
- title: Breakpoint Debugging, use_cases: debugging, breakpoints, development workflow, troubleshooting issues, vscode setup, ide configuration, inspecting code execution, path: kit/debugging
- title: Migrating to SvelteKit v2, use_cases: migration, upgrading from sveltekit 1 to 2, breaking changes, version updates, path: kit/migrating-to-sveltekit-2
- title: Migrating from Sapper, use_cases: migrating from sapper, upgrading legacy projects, sapper to sveltekit conversion, project modernization, path: kit/migrating
- title: Additional resources, use_cases: troubleshooting, getting help, finding examples, learning sveltekit, project templates, common issues, community support, path: kit/additional-resources
- title: Glossary, use_cases: rendering strategies, performance optimization, deployment configuration, seo requirements, static sites, spas, server-side rendering, prerendering, edge deployment, pwa development, path: kit/glossary
- title: @sveltejs/kit, use_cases: forms, form actions, server-side validation, form submission, error handling, redirects, json responses, http errors, server utilities, path: kit/@sveltejs-kit
- title: @sveltejs/kit/hooks, use_cases: middleware, request processing, authentication chains, logging, multiple hooks, request/response transformation, path: kit/@sveltejs-kit-hooks
- title: @sveltejs/kit/node/polyfills, use_cases: node.js environments, custom servers, non-standard runtimes, ssr setup, web api compatibility, polyfill requirements, path: kit/@sveltejs-kit-node-polyfills
- title: @sveltejs/kit/node, use_cases: node.js adapter, custom server setup, http integration, streaming files, node deployment, server-side rendering with node, path: kit/@sveltejs-kit-node
- title: @sveltejs/kit/vite, use_cases: project setup, vite configuration, initial sveltekit setup, build tooling, path: kit/@sveltejs-kit-vite
- title: $app/environment, use_cases: always, conditional logic, client-side code, server-side code, build-time logic, prerendering, development vs production, environment detection, path: kit/$app-environment
- title: $app/forms, use_cases: forms, user input, data submission, progressive enhancement, custom form handling, form validation, path: kit/$app-forms
- title: $app/navigation, use_cases: routing, navigation, multi-page apps, programmatic navigation, data reloading, preloading, shallow routing, navigation lifecycle, scroll handling, view transitions, path: kit/$app-navigation
- title: $app/paths, use_cases: static assets, images, fonts, public files, base path configuration, subdirectory deployment, cdn setup, asset urls, links, navigation, path: kit/$app-paths
- title: $app/server, use_cases: remote functions, server-side logic, data fetching, form handling, api endpoints, client-server communication, prerendering, file reading, batch queries, path: kit/$app-server
- title: $app/state, use_cases: routing, navigation, multi-page apps, loading states, url parameters, form handling, error states, version updates, page metadata, shallow routing, path: kit/$app-state
- title: $app/stores, use_cases: legacy projects, sveltekit pre-2.12, migration from stores to runes, maintaining older codebases, accessing page data, navigation state, app version updates, path: kit/$app-stores
- title: $app/types, use_cases: routing, navigation, type safety, route parameters, dynamic routes, link generation, pathname validation, multi-page apps, path: kit/$app-types
- title: $env/dynamic/private, use_cases: api keys, secrets management, server-side config, environment variables, backend logic, deployment-specific settings, private data handling, path: kit/$env-dynamic-private
- title: $env/dynamic/public, use_cases: environment variables, client-side config, runtime configuration, public api keys, deployment-specific settings, multi-environment apps, path: kit/$env-dynamic-public
- title: $env/static/private, use_cases: server-side api keys, backend secrets, database credentials, private configuration, build-time optimization, server endpoints, authentication tokens, path: kit/$env-static-private
- title: $env/static/public, use_cases: environment variables, public config, client-side data, api endpoints, build-time configuration, public constants, path: kit/$env-static-public
- title: $lib, use_cases: project setup, component organization, importing shared components, reusable ui elements, code structure, path: kit/$lib
- title: $service-worker, use_cases: offline support, pwa, service workers, caching strategies, progressive web apps, offline-first apps, path: kit/$service-worker
- title: Configuration, use_cases: project setup, configuration, adapters, deployment, build settings, environment variables, routing customization, prerendering, csp security, csrf protection, path configuration, typescript setup, path: kit/configuration
- title: Command Line Interface, use_cases: project setup, typescript configuration, generated types, ./$types imports, initial project configuration, path: kit/cli
- title: Types, use_cases: typescript, type safety, route parameters, api endpoints, load functions, form actions, generated types, jsconfig setup, path: kit/types
- title: Overview, use_cases: use title and path to estimate use case, path: mcp/overview
- title: Local setup, use_cases: use title and path to estimate use case, path: mcp/local-setup
- title: Remote setup, use_cases: use title and path to estimate use case, path: mcp/remote-setup
- title: Tools, use_cases: use title and path to estimate use case, path: mcp/tools
- title: Resources, use_cases: use title and path to estimate use case, path: mcp/resources
- title: Prompts, use_cases: use title and path to estimate use case, path: mcp/prompts
- title: Overview, use_cases: always, any svelte project, getting started, learning svelte, introduction, project setup, understanding framework basics, path: svelte/overview
- title: Getting started, use_cases: project setup, starting new svelte project, initial installation, choosing between sveltekit and vite, editor configuration, path: svelte/getting-started
- title: .svelte files, use_cases: always, any svelte project, component creation, project setup, learning svelte basics, path: svelte/svelte-files
- title: .svelte.js and .svelte.ts files, use_cases: shared reactive state, reusable reactive logic, state management across components, global stores, custom reactive utilities, path: svelte/svelte-js-files
- title: What are runes?, use_cases: always, any svelte 5 project, understanding core syntax, learning svelte 5, migration from svelte 4, path: svelte/what-are-runes
- title: $state, use_cases: always, any svelte project, core reactivity, state management, counters, forms, todo apps, interactive ui, data updates, class-based components, path: svelte/$state
- title: $derived, use_cases: always, any svelte project, computed values, reactive calculations, derived data, transforming state, dependent values, path: svelte/$derived
- title: $effect, use_cases: canvas drawing, third-party library integration, dom manipulation, side effects, intervals, timers, network requests, analytics tracking, path: svelte/$effect
- title: $props, use_cases: always, any svelte project, passing data to components, component communication, reusable components, component props, path: svelte/$props
- title: $bindable, use_cases: forms, user input, two-way data binding, custom input components, parent-child communication, reusable form fields, path: svelte/$bindable
- title: $inspect, use_cases: debugging, development, tracking state changes, reactive state monitoring, troubleshooting reactivity issues, path: svelte/$inspect
- title: $host, use_cases: custom elements, web components, dispatching custom events, component library, framework-agnostic components, path: svelte/$host
- title: Basic markup, use_cases: always, any svelte project, basic markup, html templating, component structure, attributes, events, props, text rendering, path: svelte/basic-markup
- title: {#if ...}, use_cases: always, conditional rendering, showing/hiding content, dynamic ui, user permissions, loading states, error handling, form validation, path: svelte/if
- title: {#each ...}, use_cases: always, lists, arrays, iteration, product listings, todos, tables, grids, dynamic content, shopping carts, user lists, comments, feeds, path: svelte/each
- title: {#key ...}, use_cases: animations, transitions, component reinitialization, forcing component remount, value-based ui updates, resetting component state, path: svelte/key
- title: {#await ...}, use_cases: async data fetching, api calls, loading states, promises, error handling, lazy loading components, dynamic imports, path: svelte/await
- title: {#snippet ...}, use_cases: reusable markup, component composition, passing content to components, table rows, list items, conditional rendering, reducing duplication, path: svelte/snippet
- title: {@render ...}, use_cases: reusable ui patterns, component composition, conditional rendering, fallback content, layout components, slot alternatives, template reuse, path: svelte/@render
- title: {@html ...}, use_cases: rendering html strings, cms content, rich text editors, markdown to html, blog posts, wysiwyg output, sanitized html injection, dynamic html content, path: svelte/@html
- title: {@attach ...}, use_cases: tooltips, popovers, dom manipulation, third-party libraries, canvas drawing, element lifecycle, interactive ui, custom directives, wrapper components, path: svelte/@attach
- title: {@const ...}, use_cases: computed values in loops, derived calculations in blocks, local variables in each iterations, complex list rendering, path: svelte/@const
- title: {@debug ...}, use_cases: debugging, development, troubleshooting, tracking state changes, monitoring variables, reactive data inspection, path: svelte/@debug
- title: bind:, use_cases: forms, user input, two-way data binding, interactive ui, media players, file uploads, checkboxes, radio buttons, select dropdowns, contenteditable, dimension tracking, path: svelte/bind
- title: use:, use_cases: custom directives, dom manipulation, third-party library integration, tooltips, click outside, gestures, focus management, element lifecycle hooks, path: svelte/use
- title: transition:, use_cases: animations, interactive ui, modals, dropdowns, notifications, conditional content, show/hide elements, smooth state changes, path: svelte/transition
- title: in: and out:, use_cases: animation, transitions, interactive ui, conditional rendering, independent enter/exit effects, modals, tooltips, notifications, path: svelte/in-and-out
- title: animate:, use_cases: sortable lists, drag and drop, reorderable items, todo lists, kanban boards, playlist editors, priority queues, animated list reordering, path: svelte/animate
- title: style:, use_cases: dynamic styling, conditional styles, theming, dark mode, responsive design, interactive ui, component styling, path: svelte/style
- title: class, use_cases: always, conditional styling, dynamic classes, tailwind css, component styling, reusable components, responsive design, path: svelte/class
- title: await, use_cases: async data fetching, loading states, server-side rendering, awaiting promises in components, async validation, concurrent data loading, path: svelte/await-expressions
- title: Scoped styles, use_cases: always, styling components, scoped css, component-specific styles, preventing style conflicts, animations, keyframes, path: svelte/scoped-styles
- title: Global styles, use_cases: global styles, third-party libraries, css resets, animations, styling body/html, overriding component styles, shared keyframes, base styles, path: svelte/global-styles
- title: Custom properties, use_cases: theming, custom styling, reusable components, design systems, dynamic colors, component libraries, ui customization, path: svelte/custom-properties
- title: Nested <style> elements, use_cases: component styling, scoped styles, dynamic styles, conditional styling, nested style tags, custom styling logic, path: svelte/nested-style-elements
- title: <svelte:boundary>, use_cases: error handling, async data loading, loading states, error recovery, flaky components, error reporting, resilient ui, path: svelte/svelte-boundary
- title: <svelte:window>, use_cases: keyboard shortcuts, scroll tracking, window resize handling, responsive layouts, online/offline detection, viewport dimensions, global event listeners, path: svelte/svelte-window
- title: <svelte:document>, use_cases: document events, visibility tracking, fullscreen detection, pointer lock, focus management, document-level interactions, path: svelte/svelte-document
- title: <svelte:body>, use_cases: mouse tracking, hover effects, cursor interactions, global body events, drag and drop, custom cursors, interactive backgrounds, body-level actions, path: svelte/svelte-body
- title: <svelte:head>, use_cases: seo optimization, page titles, meta tags, social media sharing, dynamic head content, multi-page apps, blog posts, product pages, path: svelte/svelte-head
- title: <svelte:element>, use_cases: dynamic content, cms integration, user-generated content, configurable ui, runtime element selection, flexible components, path: svelte/svelte-element
- title: <svelte:options>, use_cases: migration, custom elements, web components, legacy mode compatibility, runes mode setup, svg components, mathml components, css injection control, path: svelte/svelte-options
- title: Stores, use_cases: shared state, cross-component data, reactive values, async data streams, manual control over updates, rxjs integration, extracting logic, path: svelte/stores
- title: Context, use_cases: shared state, avoiding prop drilling, component communication, theme providers, user context, authentication state, configuration sharing, deeply nested components, path: svelte/context
- title: Lifecycle hooks, use_cases: component initialization, cleanup tasks, timers, subscriptions, dom measurements, chat windows, autoscroll features, migration from svelte 4, path: svelte/lifecycle-hooks
- title: Imperative component API, use_cases: project setup, client-side rendering, server-side rendering, ssr, hydration, testing, programmatic component creation, tooltips, dynamic mounting, path: svelte/imperative-component-api
- title: Hydratable data, use_cases: use title and path to estimate use case, path: svelte/hydratable
- title: Testing, use_cases: testing, quality assurance, unit tests, integration tests, component tests, e2e tests, vitest setup, playwright setup, test automation, path: svelte/testing
- title: TypeScript, use_cases: typescript setup, type safety, component props typing, generic components, wrapper components, dom type augmentation, project configuration, path: svelte/typescript
- title: Custom elements, use_cases: web components, custom elements, component library, design system, framework-agnostic components, embedding svelte in non-svelte apps, shadow dom, path: svelte/custom-elements
- title: Svelte 4 migration guide, use_cases: upgrading svelte 3 to 4, version migration, updating dependencies, breaking changes, legacy project maintenance, path: svelte/v4-migration-guide
- title: Svelte 5 migration guide, use_cases: migrating from svelte 4 to 5, upgrading projects, learning svelte 5 syntax changes, runes migration, event handler updates, path: svelte/v5-migration-guide
- title: Frequently asked questions, use_cases: getting started, learning svelte, beginner setup, project initialization, vs code setup, formatting, testing, routing, mobile apps, troubleshooting, community support, path: svelte/faq
- title: svelte, use_cases: migration from svelte 4 to 5, upgrading legacy code, component lifecycle hooks, context api, mounting components, event dispatchers, typescript component types, path: svelte/svelte
- title: svelte/action, use_cases: typescript types, actions, use directive, dom manipulation, element lifecycle, custom behaviors, third-party library integration, path: svelte/svelte-action
- title: svelte/animate, use_cases: animated lists, sortable items, drag and drop, reordering elements, todo lists, kanban boards, playlist management, smooth position transitions, path: svelte/svelte-animate
- title: svelte/attachments, use_cases: library development, component libraries, programmatic element manipulation, migrating from actions to attachments, spreading props onto elements, path: svelte/svelte-attachments
- title: svelte/compiler, use_cases: build tools, custom compilers, ast manipulation, preprocessors, code transformation, migration scripts, syntax analysis, bundler plugins, dev tools, path: svelte/svelte-compiler
- title: svelte/easing, use_cases: animations, transitions, custom easing, smooth motion, interactive ui, modals, dropdowns, carousels, page transitions, scroll effects, path: svelte/svelte-easing
- title: svelte/events, use_cases: window events, document events, global event listeners, event delegation, programmatic event handling, cleanup functions, media queries, path: svelte/svelte-events
- title: svelte/legacy, use_cases: migration from svelte 4 to svelte 5, upgrading legacy code, event modifiers, class components, imperative component instantiation, path: svelte/svelte-legacy
- title: svelte/motion, use_cases: animation, smooth transitions, interactive ui, sliders, counters, physics-based motion, drag gestures, accessibility, reduced motion, path: svelte/svelte-motion
- title: svelte/reactivity/window, use_cases: responsive design, viewport tracking, scroll effects, window resize handling, online/offline detection, zoom level tracking, path: svelte/svelte-reactivity-window
- title: svelte/reactivity, use_cases: reactive data structures, state management with maps/sets, game boards, selection tracking, url manipulation, query params, real-time clocks, media queries, responsive design, path: svelte/svelte-reactivity
- title: svelte/server, use_cases: server-side rendering, ssr, static site generation, seo optimization, initial page load, pre-rendering, node.js server, custom server setup, path: svelte/svelte-server
- title: svelte/store, use_cases: state management, shared data, reactive stores, cross-component communication, global state, computed values, data synchronization, legacy svelte projects, path: svelte/svelte-store
- title: svelte/transition, use_cases: animations, transitions, interactive ui, modals, dropdowns, tooltips, notifications, svg animations, list animations, page transitions, path: svelte/svelte-transition
- title: Compiler errors, use_cases: animation, transitions, keyed each blocks, list animations, path: svelte/compiler-errors
- title: Compiler warnings, use_cases: accessibility, a11y compliance, wcag standards, screen readers, keyboard navigation, aria attributes, semantic html, interactive elements, path: svelte/compiler-warnings
- title: Runtime errors, use_cases: debugging errors, error handling, troubleshooting runtime issues, migration to svelte 5, component binding, effects and reactivity, path: svelte/runtime-errors
- title: Runtime warnings, use_cases: debugging state proxies, console logging reactive values, inspecting state changes, development troubleshooting, path: svelte/runtime-warnings
- title: Overview, use_cases: migrating from svelte 3/4 to svelte 5, maintaining legacy components, understanding deprecated features, gradual upgrade process, path: svelte/legacy-overview
- title: Reactive let/var declarations, use_cases: migration, legacy svelte projects, upgrading from svelte 4, understanding old reactivity, maintaining existing code, learning runes differences, path: svelte/legacy-let
- title: Reactive $: statements, use_cases: legacy mode, migration from svelte 4, reactive statements, computed values, derived state, side effects, path: svelte/legacy-reactive-assignments
- title: export let, use_cases: legacy mode, migration from svelte 4, maintaining older projects, component props without runes, exporting component methods, renaming reserved word props, path: svelte/legacy-export-let
- title: $$props and $$restProps, use_cases: legacy mode migration, component wrappers, prop forwarding, button components, reusable ui components, spreading props to child elements, path: svelte/legacy-$$props-and-$$restProps
- title: on:, use_cases: legacy mode, event handling, button clicks, forms, user interactions, component communication, event forwarding, event modifiers, path: svelte/legacy-on
- title: <slot>, use_cases: legacy mode, migrating from svelte 4, component composition, reusable components, passing content to components, modals, layouts, wrappers, path: svelte/legacy-slots
- title: $$slots, use_cases: legacy mode, conditional slot rendering, optional content sections, checking if slots provided, migrating from legacy to runes, path: svelte/legacy-$$slots
- title: <svelte:fragment>, use_cases: named slots, component composition, layout systems, avoiding wrapper divs, legacy svelte projects, slot content organization, path: svelte/legacy-svelte-fragment
- title: <svelte:component>, use_cases: dynamic components, component switching, conditional rendering, legacy mode migration, tabbed interfaces, multi-step forms, path: svelte/legacy-svelte-component
- title: <svelte:self>, use_cases: recursive components, tree structures, nested menus, file explorers, comment threads, hierarchical data, path: svelte/legacy-svelte-self
- title: Imperative component API, use_cases: migration from svelte 3/4 to 5, legacy component api, maintaining old projects, understanding deprecated patterns, path: svelte/legacy-component-api
</available-docs>
These are the available documentation sections that `list-sections` will return, you do not need to call it again.
Every time you write a Svelte component or a Svelte module you MUST invoke the `svelte-autofixer` tool providing the code. The tool will return a list of issues or suggestions. If there are any issues or suggestions you MUST fix them and call the tool again with the updated code. You MUST keep doing this until the tool returns no issues or suggestions. Only then you can return the code to the user.
This is the task you will work on:
<task>
[YOUR TASK HERE]
</task>
If you are not writing the code into a file, once you have the final version of the code ask the user if it wants to generate a playground link to quickly check the code in it and if it answer yes call the `playground-link` tool and return the url to the user nicely formatted. The playground link MUST be generated only once you have the final version of the code and you are ready to share it, it MUST include an entry point file called `App.svelte` where the main component should live. If you have multiple files to include in the playground link you can include them all at the root.
```
</details>

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@@ -1,3 +0,0 @@
---
title: Capabilities
---

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@@ -1,3 +0,0 @@
---
title: Claude Code Plugin
---

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@@ -1,23 +0,0 @@
---
title: Overview
---
The open source [repository](https://github.com/sveltejs/mcp) containing the code for the MCP server is also a Claude Code Marketplace plugin.
The marketplace allow you to install the `svelte` plugin which will give you both the remote MCP server, a [skill](https://docs.claude.com/en/docs/agents-and-tools/agent-skills/overview) to instruct the LLM on how to properly write Svelte 5 code, and a specialized agent for editing Svelte files.
If possible is recommended to instruct the LLM to execute MCP calls with the agent (you can explicitly mention an agent in your message to delegate work to it) when creating or editing `.svelte` files or `.svelte.ts`/`.svelte.js` modules as it helps save context by handling Svelte-specific tasks more efficiently.
## Installation
To add the repository as a marketplace launch claude code and type
```bash
/plugin marketplace add sveltejs/mcp
```
once you do that you can install the svelte skill doing
```bash
/plugin install svelte
```

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@@ -1,11 +0,0 @@
---
title: Skill
---
Claude Skills are a set of Markdown files that live in your `.claude` folder (or that you can upload in your Claude web/desktop). They are automatically loaded by Claude when it thinks they are appropriate for the current task.
With those markdown files you can steer the agent behaviours and, in our case, we teach him how to properly write Svelte 5 code. The advantage over the MCP server is that the relevant tokens are only loaded when they are needed (so if you ask the LLM to write a Typescript utility in a Svelte project it will not load the skill in the context).
You can find the skill inside the [`sveltejs/mcp`](https://github.com/sveltejs/mcp/tree/main/plugins/svelte/skills) repo (it's in the `/plugins/svelte/skills` folder). You can also download the latest zip file from the [releases page](https://github.com/sveltejs/mcp/releases?q=svelte-code-writer) to load it in your Claude web/desktop or to extract it inside your `.claude` folder.
If you are using Claude Code you can also install it through the [Svelte marketplace](plugin).

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@@ -1,11 +0,0 @@
---
title: Subagent
---
The Svelte plugin includes a specialized subagent called `svelte-file-editor` designed for creating, editing, and reviewing Svelte files.
## Benefits
The subagent is executed in a separate "agent" that has access to it's own context window. This allows the agent to fetch the documentation, iterate with the `svelte-autofixer` tool and write to the file system without wasting context in the main agent.
The delegation should happen automatically when appropriate, but you can also explicitly request the subagent be used for Svelte-related tasks.

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@@ -1,3 +0,0 @@
---
title: OpenCode Plugin
---

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@@ -1,39 +0,0 @@
---
title: Overview
---
OpenCode has a [plugin system](https://opencode.ai/docs/plugins/) that allows developers to add MCP servers, agents and commands programmatically. Svelte has an OpenCode plugin published under `@sveltejs/opencode`.
## Installation
To install the plugin in OpenCode you can edit your [OpenCode config]() (either the global or the local one), adding `@sveltejs/opencode` to the list of plugins.
```json
{
"$schema": "https://opencode.ai/config.json",
"plugin": ["@sveltejs/opencode"]
}
```
That's it! You now have the Svelte MCP server and the [file editor subagent](opencode-subagent) configured for you.
## Configuration
The default configuration for the Svelte OpenCode plugin looks like this...
```json
{
"$schema": "https://raw.githubusercontent.com/sveltejs/mcp/refs/heads/main/packages/opencode/schema.json",
"mcp": {
"type": "remote",
"enabled": true
},
"subagent": {
"enabled": true
}
}
```
...but if you prefer, you can enable only the subagent, only the MCP, or configure the kind of MCP server you want to use (`local` or `remote`).
You can place this file in `~/.config/opencode/svelte.json` or, if you have an `OPENCODE_CONFIG_DIR` environment variable specified, at `$OPENCODE_CONFIG_DIR/svelte.json`.

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@@ -1,11 +0,0 @@
---
title: Subagent
---
The Svelte plugin includes a specialized subagent called `svelte-file-editor` designed for creating, editing, and reviewing Svelte files.
## Benefits
The subagent has access to its own context window, allowing it to fetch the documentation, iterate with the `svelte-autofixer` tool and write to the file system without wasting context in the main agent.
The delegation should happen automatically when appropriate, but you can also explicitly request the subagent be used for Svelte-related tasks.

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@@ -1,3 +0,0 @@
---
title: MCP
---

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@@ -7,21 +7,11 @@ import { fileURLToPath } from 'node:url';
import ts from 'typescript-eslint';
import svelteConfig from './apps/mcp-remote/svelte.config.js';
import eslint_plugin_import from 'eslint-plugin-import';
import { configs as pnpm } from 'eslint-plugin-pnpm';
const gitignore_path = fileURLToPath(new URL('./.gitignore', import.meta.url));
export default /** @type {import("eslint").Linter.Config} */ ([
includeIgnoreFile(gitignore_path),
{
ignores: [
'.claude/**/*',
'.changeset/*',
'.github/**/*.yml',
'.github/**/*.yaml',
'**/pnpm-lock.yaml',
],
},
js.configs.recommended,
...ts.configs.recommended,
...svelte.configs.recommended,
@@ -44,28 +34,17 @@ export default /** @type {import("eslint").Linter.Config} */ ([
leadingUnderscore: 'allow',
},
],
'@typescript-eslint/no-unused-vars': [
'error',
{
varsIgnorePattern: '^_',
ignoreRestSiblings: true,
},
],
'func-style': ['error', 'declaration', { allowTypeAnnotation: true }],
'import/no-unresolved': 'off', // this doesn't work well with typescript path mapping
'import/extensions': [
'error',
'ignorePackages',
{
ignorePackages: true,
pattern: {
js: 'always',
mjs: 'always',
cjs: 'always',
ts: 'always',
svelte: 'always',
svg: 'always',
json: 'always',
},
js: 'always',
mjs: 'always',
cjs: 'always',
ts: 'always',
svelte: 'always',
},
],
},
@@ -81,16 +60,4 @@ export default /** @type {import("eslint").Linter.Config} */ ([
},
},
},
{
name: 'pnpm/exclude-some-rules',
files: ['**/*.json', '**/*.yaml', '**/*.yml', 'pnpm-workspace.yaml'],
rules: {
'@typescript-eslint/naming-convention': 'off',
'@typescript-eslint/no-unused-vars': 'off',
'@typescript-eslint/no-unused-expressions': 'off',
'func-style': 'off',
},
},
...pnpm.json,
...pnpm.yaml,
]);

View File

@@ -3,27 +3,16 @@
"version": "0.0.1",
"description": "The official Svelte MCP server implementation",
"type": "module",
"packageManager": "pnpm@10.27.0",
"scripts": {
"build": "pnpm -r run build",
"dev": "pnpm --filter @sveltejs/mcp-remote run dev",
"check": "pnpm -r run check",
"check:publint": "pnpm -r run check:publint",
"format": "prettier --write .",
"lint": "prettier --check . && eslint .",
"lint:fix": "prettier --write . && eslint . --fix",
"lint:inspect": "pnpm dlx @eslint/config-inspector",
"node:inspect": "pnpm dlx node-modules-inspector",
"test:unit": "vitest",
"test": "npm run test:unit -- --run",
"test:watch": "npm run test:unit -- --watch",
"inspect": "pnpm mcp-inspector",
"generate-opencode-jsonschema": "pnpm --filter @sveltejs/opencode run generate-schema",
"generate-summaries": "pnpm --filter @sveltejs/mcp-server run generate-summaries",
"generate-prompt-docs": "node --import node-resolve-ts/register scripts/update-docs-prompts.ts",
"debug:generate-summaries": "pnpm --filter @sveltejs/mcp-server run debug:generate-summaries",
"release": "pnpm --filter @sveltejs/mcp run build && changeset publish",
"changeset:version": "changeset version && pnpm --filter @sveltejs/mcp run update:version && git add --all"
"inspect": "pnpm mcp-inspector"
},
"keywords": [
"svelte",
@@ -33,24 +22,23 @@
],
"private": true,
"devDependencies": {
"@changesets/cli": "catalog:tooling",
"@eslint/compat": "catalog:lint",
"@eslint/js": "catalog:lint",
"@modelcontextprotocol/inspector": "catalog:ai",
"@sveltejs/adapter-vercel": "catalog:svelte",
"@svitejs/changesets-changelog-github-compact": "catalog:tooling",
"eslint": "catalog:lint",
"eslint-config-prettier": "catalog:lint",
"eslint-plugin-import": "catalog:lint",
"eslint-plugin-pnpm": "catalog:lint",
"eslint-plugin-svelte": "catalog:lint",
"globals": "catalog:lint",
"node-resolve-ts": "catalog:tooling",
"prettier": "catalog:lint",
"prettier-plugin-svelte": "catalog:lint",
"publint": "catalog:tooling",
"typescript": "catalog:tooling",
"typescript-eslint": "catalog:lint",
"vitest": "catalog:tooling"
"@eslint/compat": "^1.3.2",
"@eslint/js": "^9.36.0",
"@modelcontextprotocol/inspector": "^0.16.7",
"eslint": "^9.36.0",
"eslint-config-prettier": "^10.0.1",
"eslint-plugin-import": "^2.32.0",
"eslint-plugin-svelte": "^3.12.3",
"globals": "^16.0.0",
"prettier": "^3.4.2",
"prettier-plugin-svelte": "^3.3.3",
"typescript": "^5.0.0",
"typescript-eslint": "^8.44.1",
"vitest": "^3.2.3"
},
"pnpm": {
"onlyBuiltDependencies": [
"esbuild"
]
}
}

View File

@@ -12,8 +12,9 @@
"keywords": [],
"author": "",
"license": "ISC",
"packageManager": "pnpm@10.15.1",
"type": "module",
"dependencies": {
"drizzle-orm": "catalog:orm"
"drizzle-orm": "^0.40.1"
}
}

View File

@@ -1,2 +0,0 @@
# Anthropic API Key from: https://console.anthropic.com/
ANTHROPIC_API_KEY=your_api_key_here

View File

@@ -7,42 +7,35 @@
"keywords": [],
"author": "",
"license": "ISC",
"packageManager": "pnpm@10.15.1",
"type": "module",
"scripts": {
"test": "vitest",
"generate-summaries": "node scripts/generate-summaries.ts --experimental-strip-types",
"debug:generate-summaries": "DEBUG_MODE=1 node scripts/generate-summaries.ts --experimental-strip-types"
"test": "vitest"
},
"exports": {
".": "./src/index.ts",
"./handlers": "./src/mcp/handlers/tools/handlers.ts"
".": "./src/index.ts"
},
"peerDependencies": {
"drizzle-orm": "^0.45.0"
"drizzle-orm": "^0.40.0"
},
"dependencies": {
"@mcp-ui/server": "catalog:ai",
"@sveltejs/mcp-schema": "workspace:^",
"@tmcp/adapter-valibot": "catalog:tmcp",
"@tmcp/transport-in-memory": "catalog:tmcp",
"@typescript-eslint/parser": "catalog:lint",
"eslint": "catalog:lint",
"eslint-plugin-svelte": "catalog:lint",
"svelte": "catalog:svelte",
"svelte-eslint-parser": "catalog:lint",
"tmcp": "catalog:tmcp",
"ts-blank-space": "catalog:tooling",
"typescript-eslint": "catalog:lint",
"valibot": "catalog:tooling",
"vitest": "catalog:tooling",
"zimmerframe": "catalog:tooling"
"@tmcp/adapter-valibot": "^0.1.4",
"@typescript-eslint/parser": "^8.44.0",
"eslint": "^9.36.0",
"eslint-plugin-svelte": "^3.12.3",
"svelte": "^5.39.2",
"svelte-eslint-parser": "^1.3.2",
"tmcp": "^1.13.0",
"typescript-eslint": "^8.44.0",
"valibot": "^1.1.0",
"vitest": "^3.2.4",
"zimmerframe": "^1.1.4"
},
"devDependencies": {
"@anthropic-ai/sdk": "catalog:ai",
"@sveltejs/kit": "catalog:svelte",
"@types/eslint-scope": "catalog:lint",
"@types/estree": "catalog:tooling",
"@typescript-eslint/types": "catalog:lint",
"dotenv": "catalog:tooling"
"@sveltejs/kit": "^2.42.2",
"@types/eslint-scope": "^8.3.2",
"@types/estree": "^1.0.8",
"@typescript-eslint/types": "^8.44.0"
}
}

View File

@@ -1,244 +0,0 @@
#!/usr/bin/env node
import 'dotenv/config';
import { writeFile, mkdir } from 'fs/promises';
import path from 'path';
import { fileURLToPath } from 'url';
import { get_sections } from '../src/mcp/utils.ts';
import { AnthropicProvider } from '../src/lib/anthropic.ts';
import { type AnthropicBatchRequest, type SummaryData } from '../src/lib/schemas.ts';
const current_filename = fileURLToPath(import.meta.url);
const current_dirname = path.dirname(current_filename);
const USE_CASES_PROMPT = `
You are tasked with analyzing Svelte 5 and SvelteKit documentation pages to identify when they would be useful.
Your task:
1. Read the documentation page content provided
2. Identify the main use cases, scenarios, or queries where this documentation would be relevant
3. Create a VERY SHORT, comma-separated list of use cases (maximum 200 characters total)
4. Think about what a developer might be trying to build or accomplish when they need this documentation
Guidelines:
- Focus on WHEN this documentation would be needed, not WHAT it contains
- Consider specific project types (e.g., "e-commerce site", "blog", "dashboard", "social media app")
- Consider specific features (e.g., "authentication", "forms", "data fetching", "animations")
- Consider specific components (e.g., "slider", "modal", "dropdown", "card")
- Consider development stages (e.g., "project setup", "deployment", "testing", "migration")
- Use "always" for fundamental concepts that apply to virtually all Svelte projects
- Be concise but specific
- Use lowercase
- Separate multiple use cases with commas
Examples of good use_cases:
- "always, any svelte project, core reactivity"
- "authentication, login systems, user management"
- "e-commerce, product listings, shopping carts"
- "forms, user input, data submission"
- "deployment, production builds, hosting setup"
- "animation, transitions, interactive ui"
- "routing, navigation, multi-page apps"
- "blog, content sites, markdown rendering"
Requirements:
- Maximum 200 characters (including spaces and commas)
- Lowercase only
- Comma-separated list of use cases
- Focus on WHEN/WHY someone would need this, not what it is
- Be specific about project types, features, or components when applicable
- Use "always" sparingly, only for truly universal concepts
- Do not include quotes or special formatting in your response
- Respond with ONLY the use cases text, no additional text
Here is the documentation page content to analyze:
`;
async function fetch_section_content(url: string) {
const response = await fetch(url, { signal: AbortSignal.timeout(30000) });
if (!response.ok) {
throw new Error(`Failed to fetch ${url}: ${response.status} ${response.statusText}`);
}
return await response.text();
}
async function main() {
console.log('🚀 Starting use cases generation...');
// Check for API key
const api_key = process.env.ANTHROPIC_API_KEY;
if (!api_key) {
console.error('❌ Error: ANTHROPIC_API_KEY environment variable is required');
console.error('Please set it in packages/mcp-server/.env file or export it:');
console.error('export ANTHROPIC_API_KEY=your_api_key_here');
process.exit(1);
}
// Get all sections
console.log('📚 Fetching documentation sections...');
let sections = await get_sections();
console.log(`Found ${sections.length} sections`);
// Debug mode: limit to 2 sections
const debug_mode = process.env.DEBUG_MODE === '1';
if (debug_mode) {
console.log('🐛 DEBUG_MODE enabled - processing only 2 sections');
sections = sections.slice(0, 2);
}
// Fetch content for each section
console.log('📥 Downloading section content...');
const sections_with_content: Array<{
section: (typeof sections)[number];
content: string;
index: number;
}> = [];
const download_errors: Array<{ section: string; error: string }> = [];
for (let i = 0; i < sections.length; i++) {
const section = sections[i]!;
try {
console.log(`Fetching ${i + 1}/${sections.length}: ${section.title}`);
const content = await fetch_section_content(section.url);
sections_with_content.push({
section,
content,
index: i,
});
} catch (error) {
const error_msg = error instanceof Error ? error.message : String(error);
console.error(`⚠️ Failed to fetch ${section.title}:`, error_msg);
download_errors.push({ section: section.title, error: error_msg });
}
}
console.log(`✅ Successfully downloaded ${sections_with_content.length} sections`);
if (sections_with_content.length === 0) {
console.error('❌ No sections were successfully downloaded');
process.exit(1);
}
// Initialize Anthropic client
console.log('🤖 Initializing Anthropic API...');
const anthropic = new AnthropicProvider('claude-sonnet-4-5-20250929', api_key);
// Prepare batch requests
console.log('📦 Preparing batch requests...');
const batch_requests: AnthropicBatchRequest[] = sections_with_content.map(
({ content, index }) => ({
custom_id: `section-${index}`,
params: {
model: anthropic.get_model_identifier(),
max_tokens: 250,
messages: [
{
role: 'user',
content: USE_CASES_PROMPT + content,
},
],
temperature: 0,
},
}),
);
// Create and process batch
console.log('🚀 Creating batch job...');
const batch_response = await anthropic.create_batch(batch_requests);
console.log(`✅ Batch created with ID: ${batch_response.id}`);
// Poll for completion
console.log('⏳ Waiting for batch to complete...');
let batch_status = await anthropic.get_batch_status(batch_response.id);
while (batch_status.processing_status === 'in_progress') {
const { succeeded, processing, errored } = batch_status.request_counts;
console.log(` Progress: ${succeeded} succeeded, ${processing} processing, ${errored} errored`);
await new Promise((resolve) => setTimeout(resolve, 5000));
batch_status = await anthropic.get_batch_status(batch_response.id);
}
console.log('✅ Batch processing completed!');
// Get results
if (!batch_status.results_url) {
throw new Error('Batch completed but no results URL available');
}
console.log('📥 Downloading results...');
const results = await anthropic.get_batch_results(batch_status.results_url);
// Process results
console.log('📊 Processing results...');
const summaries: Record<string, string> = {};
const errors: Array<{ section: string; error: string }> = [];
for (const result of results) {
const index = parseInt(result.custom_id.split('-')[1] ?? '0');
const section_data = sections_with_content.find((s) => s.index === index);
if (!section_data) {
console.warn(`⚠️ Could not find section for index ${index}`);
continue;
}
const { section } = section_data;
if (result.result.type !== 'succeeded' || !result.result.message) {
const error_msg = result.result.error?.message || 'Failed or no message';
console.error(`${section.title}: ${error_msg}`);
errors.push({ section: section.title, error: error_msg });
continue;
}
const output_content = result.result.message.content[0]?.text;
if (output_content) {
summaries[section.slug] = output_content.trim();
console.log(`${section.title}`);
}
}
// Write output to JSON file
console.log('💾 Writing results to file...');
const output_path = path.join(current_dirname, '../src/use_cases.json');
const output_dir = path.dirname(output_path);
await mkdir(output_dir, { recursive: true });
const summary_data: SummaryData = {
generated_at: new Date().toISOString(),
model: anthropic.get_model_identifier(),
total_sections: sections.length,
successful_summaries: Object.keys(summaries).length,
failed_summaries: errors.length,
summaries,
errors: errors.length > 0 ? errors : undefined,
download_errors: download_errors.length > 0 ? download_errors : undefined,
};
await writeFile(output_path, JSON.stringify(summary_data, null, 2), 'utf-8');
// Print summary
console.log('\n📊 Summary:');
console.log(` Total sections: ${sections.length}`);
console.log(` Successfully downloaded: ${sections_with_content.length}`);
console.log(` Download failures: ${download_errors.length}`);
console.log(` Successfully analyzed: ${Object.keys(summaries).length}`);
console.log(` Analysis failures: ${errors.length}`);
console.log(`\n✅ Results written to: ${output_path}`);
if (download_errors.length > 0) {
console.log('\n⚠ Some sections failed to download:');
download_errors.forEach((e) => console.log(` - ${e.section}: ${e.error}`));
}
if (errors.length > 0) {
console.log('\n⚠ Some sections failed to analyze:');
errors.forEach((e) => console.log(` - ${e.section}: ${e.error}`));
}
}
main().catch((error) => {
console.error('❌ Fatal error:', error);
process.exit(1);
});

View File

@@ -1,6 +0,0 @@
{
"extends": "../../../tsconfig.json",
"compilerOptions": {
"allowImportingTsExtensions": true
}
}

View File

@@ -11,7 +11,6 @@ export const base_runes = [
export const nested_runes = [
'$state.raw',
'$state.snapshot',
'$state.eager',
'$effect.pre',
'$effect.tracking',
'$effect.pending',

View File

@@ -1,172 +0,0 @@
import { Anthropic } from '@anthropic-ai/sdk';
import type { Model } from '@anthropic-ai/sdk/resources/messages/messages.js';
import * as v from 'valibot';
import {
anthropic_batch_response_schema,
anthropic_batch_result_schema,
type AnthropicBatchRequest,
} from './schemas.js';
export class AnthropicProvider {
private client: Anthropic;
private modelId: Model;
private baseUrl: string;
private apiKey: string;
name = 'Anthropic';
constructor(model_id: Model, api_key: string) {
if (!api_key) {
throw new Error('ANTHROPIC_API_KEY is required');
}
this.apiKey = api_key;
this.client = new Anthropic({ apiKey: api_key, timeout: 1800000 });
this.modelId = model_id;
this.baseUrl = 'https://api.anthropic.com/v1';
}
get_client(): Anthropic {
return this.client;
}
get_model_identifier(): Model {
return this.modelId;
}
async create_batch(requests: AnthropicBatchRequest[]) {
try {
const response = await fetch(`${this.baseUrl}/messages/batches`, {
method: 'POST',
headers: {
'x-api-key': this.apiKey,
'anthropic-version': '2023-06-01',
'content-type': 'application/json',
},
body: JSON.stringify({ requests }),
});
if (!response.ok) {
const error_text = await response.text();
throw new Error(
`Failed to create batch: ${response.status} ${response.statusText} - ${error_text}`,
);
}
const json_data = await response.json();
const validated_response = v.safeParse(anthropic_batch_response_schema, json_data);
if (!validated_response.success) {
throw new Error(
`Invalid batch response from Anthropic API: ${JSON.stringify(validated_response.issues)}`,
);
}
return validated_response.output;
} catch (error) {
console.error('Error creating batch with Anthropic:', error);
throw new Error(
`Failed to create batch: ${error instanceof Error ? error.message : String(error)}`,
);
}
}
async get_batch_status(batch_id: string, max_retries = 10, retry_delay = 30000) {
let retry_count = 0;
while (retry_count <= max_retries) {
try {
const response = await fetch(`${this.baseUrl}/messages/batches/${batch_id}`, {
method: 'GET',
headers: {
'x-api-key': this.apiKey,
'anthropic-version': '2023-06-01',
},
});
if (!response.ok) {
const error_text = await response.text();
throw new Error(
`Failed to get batch status: ${response.status} ${response.statusText} - ${error_text}`,
);
}
const json_data = await response.json();
const validated_response = v.safeParse(anthropic_batch_response_schema, json_data);
if (!validated_response.success) {
throw new Error(
`Invalid batch status response from Anthropic API: ${JSON.stringify(validated_response.issues)}`,
);
}
return validated_response.output;
} catch (error) {
retry_count++;
if (retry_count > max_retries) {
console.error(
`Error getting batch status for ${batch_id} after ${max_retries} retries:`,
error,
);
throw new Error(
`Failed to get batch status after ${max_retries} retries: ${
error instanceof Error ? error.message : String(error)
}`,
);
}
console.warn(
`Error getting batch status for ${batch_id} (attempt ${retry_count}/${max_retries}):`,
error,
);
console.log(`Retrying in ${retry_delay / 1000} seconds...`);
await new Promise((resolve) => setTimeout(resolve, retry_delay));
}
}
// This should never be reached due to the throw in the catch block, but TypeScript needs a return
throw new Error(`Failed to get batch status for ${batch_id} after ${max_retries} retries`);
}
async get_batch_results(results_url: string) {
try {
const response = await fetch(results_url, {
method: 'GET',
headers: {
'x-api-key': this.apiKey,
'anthropic-version': '2023-06-01',
},
});
if (!response.ok) {
const error_text = await response.text();
throw new Error(
`Failed to get batch results: ${response.status} ${response.statusText} - ${error_text}`,
);
}
const text = await response.text();
// Parse JSONL format (one JSON object per line)
const parsed_results = text
.split('\n')
.filter((line) => line.trim())
.map((line) => JSON.parse(line));
// Validate all results
const validated_results = v.safeParse(v.array(anthropic_batch_result_schema), parsed_results);
if (!validated_results.success) {
throw new Error(
`Invalid batch results from Anthropic API: ${JSON.stringify(validated_results.issues)}`,
);
}
return validated_results.output;
} catch (error) {
console.error(`Error getting batch results:`, error);
throw new Error(
`Failed to get batch results: ${error instanceof Error ? error.message : String(error)}`,
);
}
}
}

View File

@@ -1,122 +0,0 @@
import * as v from 'valibot';
export const documentation_sections_schema = v.record(
v.string(),
v.object({
metadata: v.object({
title: v.string(),
use_cases: v.optional(v.string()),
}),
slug: v.string(),
}),
);
// Valibot schemas for Batch API
export const summary_data_schema = v.object({
generated_at: v.string(),
model: v.string(),
total_sections: v.number(),
successful_summaries: v.number(),
failed_summaries: v.number(),
summaries: v.record(v.string(), v.string()),
errors: v.optional(
v.array(
v.object({
section: v.string(),
error: v.string(),
}),
),
),
download_errors: v.optional(
v.array(
v.object({
section: v.string(),
error: v.string(),
}),
),
),
});
export const anthropic_batch_request_schema = v.object({
custom_id: v.string(),
params: v.object({
model: v.string(),
max_tokens: v.number(),
messages: v.array(
v.object({
role: v.union([v.literal('user'), v.literal('assistant')]),
content: v.union([
v.string(),
v.array(
v.object({
type: v.string(),
text: v.string(),
}),
),
]),
}),
),
}),
});
export const anthropic_batch_response_schema = v.object({
id: v.string(),
type: v.string(),
processing_status: v.union([v.literal('in_progress'), v.literal('ended')]),
request_counts: v.object({
processing: v.number(),
succeeded: v.number(),
errored: v.number(),
canceled: v.number(),
expired: v.number(),
}),
ended_at: v.nullable(v.string()),
created_at: v.string(),
expires_at: v.string(),
cancel_initiated_at: v.nullable(v.string()),
results_url: v.nullable(v.string()),
});
export const anthropic_batch_result_schema = v.object({
custom_id: v.string(),
result: v.object({
type: v.union([
v.literal('succeeded'),
v.literal('errored'),
v.literal('canceled'),
v.literal('expired'),
]),
message: v.optional(
v.object({
id: v.string(),
type: v.string(),
role: v.string(),
model: v.string(),
content: v.array(
v.object({
type: v.string(),
text: v.string(),
}),
),
stop_reason: v.string(),
stop_sequence: v.nullable(v.string()),
usage: v.object({
input_tokens: v.number(),
output_tokens: v.number(),
}),
}),
),
error: v.optional(
v.object({
type: v.string(),
message: v.string(),
}),
),
}),
});
// Export inferred types
export type SummaryData = v.InferOutput<typeof summary_data_schema>;
export type AnthropicBatchRequest = v.InferOutput<typeof anthropic_batch_request_schema>;
export type AnthropicBatchResponse = v.InferOutput<typeof anthropic_batch_response_schema>;
export type AnthropicBatchResult = v.InferOutput<typeof anthropic_batch_result_schema>;

View File

@@ -61,7 +61,7 @@ describe('add_autofixers_issues', () => {
<script>
const count = ${init}(0);
</script>
<button onclick={() => count = 43}>Increment</button>
`);
@@ -74,7 +74,7 @@ describe('add_autofixers_issues', () => {
const content = run_autofixers_on_code(`
<script>
const count = 0;
$effect(() => {
count = 43;
});
@@ -89,7 +89,7 @@ describe('add_autofixers_issues', () => {
const content = run_autofixers_on_code(`
<script>
let count = ${init}(0);
$effect(() => {
count++;
});
@@ -105,7 +105,7 @@ describe('add_autofixers_issues', () => {
const content = run_autofixers_on_code(`
<script>
let count = ${init}({ value: 0 });
$effect(() => {
count.value = 42;
});
@@ -116,52 +116,6 @@ describe('add_autofixers_issues', () => {
'The stateful variable "count" is assigned inside an $effect which is generally consider a malpractice. Consider using $derived if possible.',
);
});
it(`should add a suggestion for variables that are mutated within an effect.pre`, () => {
const content = run_autofixers_on_code(`
<script>
let count = ${init}({ value: 0 });
$effect.pre(() => {
count.value = 42;
});
</script>
`);
expect(content.suggestions).toContain(
'The stateful variable "count" is assigned inside an $effect which is generally consider a malpractice. Consider using $derived if possible.',
);
});
});
it('should add a suggestion when calling a function inside an effect', () => {
const content = run_autofixers_on_code(`
<script>
import { fetch_data } from './data.js';
$effect(() => {
fetch_data();
});
</script>`);
expect(content.suggestions.length).toBeGreaterThanOrEqual(1);
expect(content.suggestions).toContain(
`You are calling the function \`fetch_data\` inside an $effect. Please check if the function is reassigning a stateful variable because that's considered malpractice and check if it could use \`$derived\` instead. Ignore this suggestion if you are sure this function is not assigning any stateful variable or if you can't check if it does.`,
);
});
it('should add a suggestion when calling a function inside an effect (with non identifier callee)', () => {
const content = run_autofixers_on_code(`
<script>
import { fetch_data } from './data.js';
$effect(() => {
fetch_data.fetch();
});
</script>`);
expect(content.suggestions.length).toBeGreaterThanOrEqual(1);
expect(content.suggestions).toContain(
`You are calling a function inside an $effect. Please check if the function is reassigning a stateful variable because that's considered malpractice and check if it could use \`$derived\` instead. Ignore this suggestion if you are sure this function is not assigning any stateful variable or if you can't check if it does.`,
);
});
});
@@ -412,19 +366,6 @@ describe('add_autofixers_issues', () => {
});
},
);
describe.each(dollarless_runes)('importing $rune from external lib', ({ rune }) => {
it(`should not add suggestions when importing from packages that are not svelte`, () => {
const content = run_autofixers_on_code(`
<script>
import { ${rune} } from 'svelte-something-something';
</script>`);
expect(content.suggestions).not.toContain(
`You are importing "${rune}" from "svelte-something-something". This is not necessary, all runes are globally available. Please remove this import and use "$${rune}" directly.`,
);
});
});
});
describe('derived_with_function', () => {
@@ -527,229 +468,4 @@ describe('add_autofixers_issues', () => {
);
});
});
describe('suggest_attachments', () => {
describe('bind:this', () => {
it('should add suggestions when using bind:this on an element', () => {
const content = run_autofixers_on_code(`
<script>
let a = $state();
</script>
<a bind:this={a} />`);
expect(content.suggestions.length).toBeGreaterThanOrEqual(1);
expect(content.suggestions).toContain(
'The usage of `bind:this` can often be replaced with an easier to read `action` or even better an `attachment`. Consider using the latter if possible.',
);
});
it('should not add suggestions when using bind:this on a component', () => {
const content = run_autofixers_on_code(`
<script>
import Child from './Child.svelte';
let a = $state();
</script>
<Child bind:this={a} />`);
expect(content.suggestions).not.toContain(
'The usage of `bind:this` can often be replaced with an easier to read `action` or even better an `attachment`. Consider using the latter if possible.',
);
});
it('should not add suggestions when using bind:this on a component nested in an element', () => {
const content = run_autofixers_on_code(`
<script>
import Child from './Child.svelte';
let a = $state();
</script>
<div>
<Child bind:this={a} />
</div>`);
expect(content.suggestions).not.toContain(
'The usage of `bind:this` can often be replaced with an easier to read `action` or even better an `attachment`. Consider using the latter if possible.',
);
});
it('should add suggestions but not suggest attachments when using bind:this on an element and the desired svelte version is 4', () => {
const content = run_autofixers_on_code(
`
<script>
let a;
</script>
<a bind:this={a} />`,
4,
);
expect(content.suggestions.length).toBeGreaterThanOrEqual(1);
expect(content.suggestions).toContain(
'The usage of `bind:this` can often be replaced with an easier to read `action`. Consider using the latter if possible.',
);
});
});
describe('use:', () => {
it('should add suggestions when using use: on an element and the action is declared as a function', () => {
const content = run_autofixers_on_code(
`<script>
function my_action(node) {
// do something with the node
}
</script>
<a use:my_action />`,
);
expect(content.suggestions.length).toBeGreaterThanOrEqual(1);
expect(content.suggestions).toContain(
'Consider using an `attachment` instead of an `action` for "my_action".',
);
});
it('should add suggestions when using use: on an element and the action is declared as a variable', () => {
const content = run_autofixers_on_code(
`<script>
const my_action = (node) => {
// do something with the node
}
</script>
<a use:my_action />`,
);
expect(content.suggestions.length).toBeGreaterThanOrEqual(1);
expect(content.suggestions).toContain(
'Consider using an `attachment` instead of an `action` for "my_action".',
);
});
it('should add suggestions when using use: on an element and the action is declared as an object', () => {
const content = run_autofixers_on_code(
`<script>
const my_action = {
action: (node) => {
// do something with the node
}
};
</script>
<a use:my_action.action />`,
);
expect(content.suggestions.length).toBeGreaterThanOrEqual(1);
expect(content.suggestions).toContain(
'Consider using an `attachment` instead of an `action` for "my_action".',
);
});
it('should not add suggestions when using use: on an element and the desired svelte version is 4', () => {
const content = run_autofixers_on_code(
`<script>
function my_action(node) {
// do something with the node
}
</script>
<a use:my_action />`,
4,
);
expect(content.suggestions).not.toContain(
'Consider using an `attachment` instead of an `action` for "my_action".',
);
});
it('should not add suggestions when using use: on an element and the action comes from an import', () => {
const content = run_autofixers_on_code(
`<script>
import { my_action } from './actions.js';
</script>
<a use:my_action />`,
);
expect(content.suggestions).not.toContain(
'Consider using an `attachment` instead of an `action` for "my_action".',
);
});
it('should not add suggestions when using use: on an element and the action comes from the props', () => {
const content = run_autofixers_on_code(
`<script>
const { my_action } = $props();
</script>
<a use:my_action />`,
);
expect(content.suggestions).not.toContain(
'Consider using an `attachment` instead of an `action` for "my_action".',
);
});
it('should not add suggestions when using use: on an element and the action comes from a global variable', () => {
const content = run_autofixers_on_code(`<a use:my_action />`);
expect(content.suggestions).not.toContain(
'Consider using an `attachment` instead of an `action` for "my_action".',
);
});
});
});
describe('read_state_with_dollar', () => {
with_possible_inits('($init)', ({ init }) => {
it(`should add an issue when reading a stateful variable initialized with ${init} like if it was a store`, () => {
const content = run_autofixers_on_code(`<script>
let x = ${init}(()=> 43);
$x;
</script>
`);
expect(content.issues).toContain(
`You are reading the stateful variable "$x" with a "$" prefix. Stateful variables are not stores and should be read without the "$". Please read it as a normal variable "x"`,
);
});
});
it(`should not add an issue when reading an imported variable like if it was a store`, () => {
const content = run_autofixers_on_code(`<script>
import { x } from "./my-stores.ts";
$x;
</script>
`);
expect(content.issues).not.toContain(
`You are reading the stateful variable "$x" with a "$" prefix. Stateful variables are not stores and should be read without the "$". Please read it as a normal variable "x"`,
);
});
it(`should not add an issue when reading a non-stateful variable like if it was a store`, () => {
const content = run_autofixers_on_code(`<script>
import { writable } from "svelte/store";
const x = writable(0);
$x;
</script>
`);
expect(content.issues).not.toContain(
`You are reading the stateful variable "$x" with a "$" prefix. Stateful variables are not stores and should be read without the "$". Please read it as a normal variable "x"`,
);
});
it(`should not add an issue when reading a prop like if it was a store`, () => {
const content = run_autofixers_on_code(`<script>
const { x } = $props();
$x;
</script>
`);
expect(content.issues).not.toContain(
`You are reading the stateful variable "$x" with a "$" prefix. Stateful variables are not stores and should be read without the "$". Please read it as a normal variable "x"`,
);
});
});
});

View File

@@ -8,7 +8,6 @@ export function add_autofixers_issues(
code: string,
desired_svelte_version: number,
filename = 'Component.svelte',
async = false,
) {
const parsed = parse(code, filename);
@@ -16,7 +15,7 @@ export function add_autofixers_issues(
for (const autofixer of Object.values(autofixers)) {
walk(
parsed.ast as unknown as Node,
{ output: content, parsed, desired_svelte_version, async },
{ output: content, parsed, desired_svelte_version },
autofixer,
);
}

View File

@@ -1,34 +1,15 @@
import { compile as compile_component, compileModule } from 'svelte/compiler';
import { extname } from 'path';
import ts from 'ts-blank-space';
import { compile } from 'svelte/compiler';
export function add_compile_issues(
content: { issues: string[]; suggestions: string[] },
code: string,
desired_svelte_version: number,
filename = 'Component.svelte',
async = false,
) {
let compile = compile_component;
const extension = extname(filename);
if (extension !== '.svelte') {
compile = compileModule;
// compile module doesn't accept .ts files so we need to transpile them first with ts-blank-space
// a fast and lightweight typescript transpiler that can strips types replacing them with white spaces
// so the code positions are not affected
if (extension === '.ts') {
code = ts(code, (node) => {
content.issues.push(
`The provided file is a module but it contains invalid TypeScript code: ${node.getText()} at ${node.getStart()}`,
);
});
}
}
const compilation_result = compile(code, {
filename: filename || 'Component.svelte',
generate: false,
runes: desired_svelte_version >= 5,
experimental: { async },
});
for (const warning of compilation_result.warnings) {

View File

@@ -12,7 +12,7 @@ function base_config(svelte_config: Config): ESLint.Options['baseConfig'] {
return [
...svelte.configs.recommended,
{
files: ['*.svelte', '*.svelte.ts', '*.svelte.js'],
files: ['*.svelte'],
rules: {
'no-self-assign': 'warn',
'svelte/infinite-reactive-loop': 'warn',
@@ -51,7 +51,7 @@ function base_config(svelte_config: Config): ESLint.Options['baseConfig'] {
];
}
function get_linter(version: number, async = false) {
function get_linter(version: number) {
if (version < 5) {
return (svelte_4_linter ??= new ESLint({
overrideConfigFile: true,
@@ -67,7 +67,6 @@ function get_linter(version: number, async = false) {
baseConfig: base_config({
compilerOptions: {
runes: true,
experimental: { async },
},
}),
}));
@@ -78,9 +77,8 @@ export async function add_eslint_issues(
code: string,
desired_svelte_version: number,
filename = 'Component.svelte',
async = false,
) {
const eslint = get_linter(desired_svelte_version, async);
const eslint = get_linter(desired_svelte_version);
const results = await eslint.lintText(code, { filePath: filename || './Component.svelte' });
for (const message of results[0]?.messages ?? []) {

View File

@@ -1,10 +1,4 @@
import type {
AssignmentExpression,
CallExpression,
Identifier,
Node,
UpdateExpression,
} from 'estree';
import type { AssignmentExpression, Identifier, Node, UpdateExpression } from 'estree';
import type { Autofixer, AutofixerState } from './index.js';
import { left_most_id } from '../ast/utils.js';
import type { AST } from 'svelte-eslint-parser';
@@ -17,17 +11,25 @@ function run_if_in_effect(
) {
const in_effect = path.findLast(
(node) =>
node.type === 'CallExpression' && state.parsed.is_rune(node, ['$effect', '$effect.pre']),
node.type === 'CallExpression' &&
node.callee.type === 'Identifier' &&
node.callee.name === '$effect',
);
if (in_effect) {
to_run();
if (
in_effect &&
in_effect.type === 'CallExpression' &&
(in_effect.callee.type === 'Identifier' || in_effect.callee.type === 'MemberExpression')
) {
if (state.parsed.is_rune(in_effect, ['$effect', '$effect.pre'])) {
to_run();
}
}
}
function assign_or_update_visitor(
function visitor(
node: UpdateExpression | AssignmentExpression,
{ state, path, next }: Context<Node | AST.SvelteNode, AutofixerState>,
{ state, path }: Context<Node | AST.SvelteNode, AutofixerState>,
) {
run_if_in_effect(path, state, () => {
function check_if_stateful_id(id: Identifier) {
@@ -56,25 +58,9 @@ function assign_or_update_visitor(
}
}
});
next();
}
function call_expression_visitor(
node: CallExpression,
{ state, path, next }: Context<Node | AST.SvelteNode, AutofixerState>,
) {
run_if_in_effect(path, state, () => {
const function_name =
node.callee.type === 'Identifier' ? `the function \`${node.callee.name}\`` : 'a function';
state.output.suggestions.push(
`You are calling ${function_name} inside an $effect. Please check if the function is reassigning a stateful variable because that's considered malpractice and check if it could use \`$derived\` instead. Ignore this suggestion if you are sure this function is not assigning any stateful variable or if you can't check if it does.`,
);
});
next();
}
export const assign_in_effect: Autofixer = {
UpdateExpression: assign_or_update_visitor,
AssignmentExpression: assign_or_update_visitor,
CallExpression: call_expression_visitor,
UpdateExpression: visitor,
AssignmentExpression: visitor,
};

View File

@@ -6,7 +6,7 @@ const dollarless_runes = base_runes.map((r) => r.replace('$', ''));
export const imported_runes: Autofixer = {
ImportDeclaration(node, { state, next }) {
const source = (node.source.value || node.source.raw?.slice(1, -1))?.toString();
if (source && (source === 'svelte' || source.startsWith('svelte/'))) {
if (source && source.startsWith('svelte')) {
for (const specifier of node.specifiers) {
const id =
specifier.type === 'ImportDefaultSpecifier'

View File

@@ -7,7 +7,6 @@ export type AutofixerState = {
output: { issues: string[]; suggestions: string[] };
parsed: ParseResult;
desired_svelte_version: number;
async?: boolean;
};
export type Autofixer = Visitors<Node | AST.SvelteNode, AutofixerState>;
@@ -17,5 +16,3 @@ export * from './wrong-property-access-state.js';
export * from './imported-runes.js';
export * from './derived-with-function.js';
export * from './use-runes-instead-of-store.js';
export * from './suggest-attachments.js';
export * from './read-state-with-dollar.js';

View File

@@ -1,22 +0,0 @@
import type { Autofixer } from './index.js';
export const read_state_with_dollar: Autofixer = {
Identifier(node, { state }) {
if (node.name.startsWith('$')) {
const reference = state.parsed.find_reference_by_id(node);
if (reference && reference.resolved && reference.resolved.defs[0]?.node?.init) {
const is_state = state.parsed.is_rune(reference.resolved.defs[0].node.init, [
'$state',
'$state.raw',
'$derived',
'$derived.by',
]);
if (is_state) {
state.output.issues.push(
`You are reading the stateful variable "${node.name}" with a "$" prefix. Stateful variables are not stores and should be read without the "$". Please read it as a normal variable "${node.name.substring(1)}"`,
);
}
}
}
},
};

View File

@@ -1,46 +0,0 @@
import type { Identifier } from 'estree';
import type { Autofixer } from './index.js';
import { left_most_id } from '../ast/utils.js';
export const suggest_attachments: Autofixer = {
SvelteDirective(node, { state, next, path }) {
if (node.kind === 'Binding' && node.key.name.name === 'this') {
const parent_element = path.findLast((p) => p.type === 'SvelteElement');
if (parent_element?.kind === 'html' && parent_element.startTag.attributes.includes(node)) {
let better_an_attachment = ` or even better an \`attachment\``;
if (state.desired_svelte_version === 4) {
better_an_attachment = ``;
}
state.output.suggestions.push(
`The usage of \`bind:this\` can often be replaced with an easier to read \`action\`${better_an_attachment}. Consider using the latter if possible.`,
);
}
} else if (node.kind === 'Action' && state.desired_svelte_version === 5) {
let id: Identifier | null = null;
if (node.key.name.type === 'Identifier') {
id = node.key.name;
} else if (node.key.name.type === 'MemberExpression') {
id = left_most_id(node.key.name);
}
if (id) {
const reference = state.parsed.find_reference_by_id(id);
const definition = reference?.resolved?.defs[0];
if (
definition &&
(definition.type === 'Variable' ||
!(definition.type === 'ImportBinding' || definition.type === 'Parameter')) &&
!(
definition.type === 'Variable' &&
definition.node.init?.type === 'CallExpression' &&
state.parsed.is_rune(definition.node.init, ['$props'])
)
) {
state.output.suggestions.push(
`Consider using an \`attachment\` instead of an \`action\` for "${id.name}".`,
);
}
}
}
next();
},
};

View File

@@ -1 +1 @@
export { setup_svelte_task } from './svelte-task.js';
export * from './svelte-task.js';

View File

@@ -1,22 +1,31 @@
import type { SvelteMcp } from '../../index.js';
import * as v from 'valibot';
import { format_sections_list } from '../../utils.js';
import { icons } from '../../icons/index.js';
import { prompt } from 'tmcp/utils';
/**
* Function that actually generates the prompt string. You can use this in the MCP server handler to generate the prompt, it can accept arguments
* if needed (it will always be invoked manually so it's up to you to provide the arguments).
*/
function svelte_task(available_docs: string, task: string) {
return `You are a Svelte expert tasked to build components and utilities for Svelte developers. If you need documentation for anything related to Svelte you can invoke the tool \`get-documentation\` with one of the following paths. However: before invoking the \`get-documentation\` tool, try to answer the users query using your own knowledge and the \`svelte-autofixer\` tool. Be mindful of how many section you request, since it is token-intensive!
<available-docs>
export function setup_svelte_task(server: SvelteMcp) {
server.prompt(
{
name: 'svelte-task-prompt',
title: 'Svelte Task Prompt',
description:
'Use this Prompt to ask for any svelte related task. It will automatically instruct the LLM on how to best use the autofixer and how to query for documentation pages.',
schema: v.object({
task: v.pipe(v.string(), v.description('The task to be performed')),
}),
},
async ({ task }) => {
// TODO: implement logic to fetch the available docs paths to return in the prompt
const available_docs: string[] = [];
${available_docs}
</available-docs>
These are the available documentation sections that \`list-sections\` will return, you do not need to call it again.
return {
messages: [
{
role: 'user',
content: {
type: 'text',
text: `You are a Svelte expert tasked to build components and utilities for Svelte developers. If you need documentation for anything related to Svelte you can invoke the tool \`get_documentation\` with one of the following paths:
<available-docs-paths>
${JSON.stringify(available_docs, null, 2)}
</available-docs-paths>
Every time you write a Svelte component or a Svelte module you MUST invoke the \`svelte-autofixer\` tool providing the code. The tool will return a list of issues or suggestions. If there are any issues or suggestions you MUST fix them and call the tool again with the updated code. You MUST keep doing this until the tool returns no issues or suggestions. Only then you can return the code to the user.
@@ -26,57 +35,12 @@ This is the task you will work on:
${task}
</task>
If you are not writing the code into a file, once you have the final version of the code ask the user if it wants to generate a playground link to quickly check the code in it and if it answer yes call the \`playground-link\` tool and return the url to the user nicely formatted. The playground link MUST be generated only once you have the final version of the code and you are ready to share it, it MUST include an entry point file called \`App.svelte\` where the main component should live. If you have multiple files to include in the playground link you can include them all at the root.`;
}
/**
* This function is used to generate the prompt to update the docs in the script `/scripts/update-docs-prompts.ts` it should use the default export
* function and pass in the arguments. Since it will be included in the documentation if it's an argument that the MCP will expose it should
* be in the format [NAME_OF_THE_ARGUMENT] to signal the user that it can substitute it.
*
* The name NEEDS to be `generate_for_docs`.
*/
export async function generate_for_docs() {
const available_docs = await format_sections_list();
return svelte_task(available_docs, '[YOUR TASK HERE]');
}
/**
* Human readable description of what the prompt does. It will be included in the documentation.
*
* The name NEEDS to be `docs_description`.
*/
export const docs_description =
'This prompt should be used whenever you are asking the model to work on a Svelte-related task. It will instruct the LLM which documentation sections are available, which tools to invoke, when to invoke them, and how to interpret the results.';
export function setup_svelte_task(server: SvelteMcp) {
server.prompt(
{
name: 'svelte-task',
title: 'Svelte-Task-Prompt',
description:
'Use this Prompt to ask for any svelte related task. It will automatically instruct the LLM on how to best use the autofixer and how to query for documentation pages.',
schema: v.object({
task: v.pipe(v.string(), v.description('The task to be performed')),
}),
complete: {
task() {
return {
completion: {
values: [''],
If you are not writing the code into a file, once you have the final version of the code ask the user if it wants to generate a playground link to quickly check the code in it and if it answer yes call the \`playground-link\` tool and return the url to the user nicely formatted. The playground link MUST be generated only once you have the final version of the code and you are ready to share it, it MUST include an entry point file called \`App.svelte\` where the main component should live. If you have multiple files to include in the playground link you can include them all at the root.
`,
},
};
},
},
icons,
},
async ({ task }) => {
if (server.ctx.sessionId && server.ctx.custom?.track) {
await server.ctx.custom?.track?.(server.ctx.sessionId, 'svelte-task');
}
const available_docs = await format_sections_list();
return prompt.text(svelte_task(available_docs, task));
},
],
};
},
);
}

View File

@@ -1,66 +0,0 @@
import type { SvelteMcp } from '../../index.js';
import { get_sections, fetch_with_timeout } from '../../utils.js';
import { icons } from '../../icons/index.js';
import { resource } from 'tmcp/utils';
export async function list_sections(server: SvelteMcp) {
const sections = await get_sections();
server.template(
{
name: 'Svelte-Doc-Section',
description: 'A single documentation section',
list() {
return sections.map((section) => {
const section_name = section.slug;
const resource_name = section_name;
const resource_uri = `svelte://${section_name}.md`;
return {
name: resource_name,
description: section.use_cases,
uri: resource_uri,
title: section.title,
};
});
},
complete: {
slug: (query) => {
const values = sections
.reduce<string[]>((acc, section) => {
const section_name = section.slug;
const resource_name = section_name;
if (section_name.includes(query.toLowerCase())) {
acc.push(resource_name);
}
return acc;
}, [])
// there's a hard limit of 100 for completions
.slice(0, 100);
return {
completion: {
values,
},
};
},
},
uri: 'svelte://{/slug*}.md',
icons,
},
async (uri, { slug }) => {
if (server.ctx.sessionId && server.ctx.custom?.track) {
await server.ctx.custom?.track?.(
server.ctx.sessionId,
'svelte-doc-section',
Array.isArray(slug) ? slug.join(',') : slug,
);
}
const section = sections.find((section) => {
return slug === section.slug;
});
if (!section) throw new Error(`Section not found: ${slug}`);
const response = await fetch_with_timeout(section.url);
const content = await response.text();
return resource.text(uri, content);
},
);
}

View File

@@ -1 +1 @@
export * from './doc-section.js';
export * from './list-sections.js';

View File

@@ -0,0 +1,25 @@
import type { SvelteMcp } from '../../index.js';
export function list_sections(server: SvelteMcp) {
server.resource(
{
name: 'list-sections',
enabled: () => false,
description:
'The list of all the available Svelte 5 and SvelteKit documentation sections in a structured format.',
uri: 'svelte://list-sections',
title: 'Svelte Documentation Section',
},
async (uri) => {
return {
contents: [
{
uri,
type: 'text',
text: 'resource list-sections called',
},
],
};
},
);
}

View File

@@ -1,141 +1,58 @@
import type { SvelteMcp } from '../../index.js';
import * as v from 'valibot';
import { get_sections, fetch_with_timeout, format_sections_list } from '../../utils.js';
import { SECTIONS_LIST_INTRO, SECTIONS_LIST_OUTRO } from './prompts.js';
import { icons } from '../../icons/index.js';
import { tool } from 'tmcp/utils';
const get_documentation_schema = v.object({
section: v.pipe(
v.union([v.string(), v.array(v.string())]),
v.description(
'The section name(s) to retrieve. Can search by title (e.g., "$state", "load functions") or file path (e.g., "cli/overview"). Supports single string and array of strings',
),
),
});
export async function get_documentation_handler({
section,
}: v.InferInput<typeof get_documentation_schema>) {
let sections: string[];
if (Array.isArray(section)) {
sections = section.filter((s): s is string => typeof s === 'string');
} else if (
typeof section === 'string' &&
section.trim().startsWith('[') &&
section.trim().endsWith(']')
) {
try {
const parsed = JSON.parse(section);
if (Array.isArray(parsed)) {
sections = parsed.filter((s): s is string => typeof s === 'string');
} else {
sections = [section];
}
} catch {
sections = [section];
}
} else if (typeof section === 'string') {
sections = [section];
} else {
sections = [];
}
const available_sections = await get_sections();
const settled_results = await Promise.allSettled(
sections.map(async (requested_section) => {
const matched_section = available_sections.find(
(s) =>
s.title.toLowerCase() === requested_section.toLowerCase() ||
s.slug === requested_section ||
s.url === requested_section,
);
if (matched_section) {
try {
const response = await fetch_with_timeout(matched_section.url);
if (response.ok) {
const content = await response.text();
return { success: true, content: `## ${matched_section.title}\n\n${content}` };
} else {
return {
success: false,
content: `## ${matched_section.title}\n\nError: Could not fetch documentation (HTTP ${response.status})`,
};
}
} catch (error) {
return {
success: false,
content: `## ${matched_section.title}\n\nError: Failed to fetch documentation - ${error}`,
};
}
} else {
return {
success: false,
content: `## ${requested_section}\n\nError: Section not found.`,
};
}
}),
);
const results = settled_results.map((result) => {
if (result.status === 'fulfilled') {
return result.value;
} else {
return {
success: false,
content: `Error: Couldn't fetch - ${result.reason}`,
};
}
});
const has_any_success = results.some((result) => result.success);
let final_text = results.map((r) => r.content).join('\n\n---\n\n');
if (!has_any_success) {
const formatted_sections = await format_sections_list();
final_text += `\n\n---\n\n${SECTIONS_LIST_INTRO}\n\n${formatted_sections}\n\n${SECTIONS_LIST_OUTRO}`;
}
return final_text;
}
export function get_documentation(server: SvelteMcp) {
server.tool(
{
name: 'get-documentation',
enabled: () => false,
description:
'Retrieves full documentation content for Svelte 5 or SvelteKit sections. Supports flexible search by title (e.g., "$state", "routing") or file path (e.g., "cli/overview"). Can accept a single section name or an array of sections. Before running this, make sure to analyze the users query, as well as the output from list-sections (which should be called first). Then ask for ALL relevant sections the user might require. For example, if the user asks to build anything interactive, you will need to fetch all relevant runes, and so on. Before calling this tool, try to implement Svelte components using your own knowledge and the `svelte-autofixer` tool, since calling this tool is token intensive.',
schema: get_documentation_schema,
annotations: {
title: 'Get Documentation',
destructiveHint: false,
readOnlyHint: true,
openWorldHint: false,
},
icons,
'Retrieves full documentation content for Svelte 5 or SvelteKit sections. Supports flexible search by title (e.g., "$state", "routing") or file path (e.g., "docs/svelte/state.md"). Can accept a single section name or an array of sections. Before running this, make sure to analyze the users query, as well as the output from list_sections (which should be called first). Then ask for ALL relevant sections the user might require. For example, if the user asks to build anything interactive, you will need to fetch all relevant runes, and so on.',
schema: v.object({
section: v.pipe(
v.union([v.string(), v.array(v.string())]),
v.description(
'The section name(s) to retrieve. Can search by title (e.g., "$state", "load functions") or file path (e.g., "docs/svelte/state.md"). Supports single string and array of strings',
),
),
}),
},
async ({ section }) => {
if (server.ctx.sessionId && server.ctx.custom?.track) {
await server.ctx.custom?.track?.(server.ctx.sessionId, 'get-documentation');
}
try {
const content = await get_documentation_handler({ section });
return tool.text(content);
} catch (e) {
const error = e as Error;
if (server.ctx.sessionId && server.ctx.custom?.track) {
await server.ctx.custom?.track?.(
server.ctx.sessionId,
'get-documentation-error',
error.message,
);
({ section }) => {
let sections: string[];
if (Array.isArray(section)) {
sections = section.filter((s): s is string => typeof s === 'string');
} else if (
typeof section === 'string' &&
section.trim().startsWith('[') &&
section.trim().endsWith(']')
) {
try {
const parsed = JSON.parse(section);
if (Array.isArray(parsed)) {
sections = parsed.filter((s): s is string => typeof s === 'string');
} else {
sections = [section];
}
} catch {
sections = [section];
}
return tool.error(error.message);
} else if (typeof section === 'string') {
sections = [section];
} else {
sections = [];
}
const sections_list = sections.length > 0 ? sections.join(', ') : 'no sections';
return {
content: [
{
type: 'text',
text: `called for sections: ${sections_list}`,
},
],
};
},
);
}

View File

@@ -1,4 +0,0 @@
export { get_documentation_handler } from './get-documentation.js';
export { list_sections_handler } from './list-sections.js';
export { svelte_autofixer_handler } from './svelte-autofixer.js';
export { playground_link_handler } from './playground-link.js';

View File

@@ -1,4 +1,4 @@
export { get_documentation } from './get-documentation.js';
export { list_sections } from './list-sections.js';
export { svelte_autofixer } from './svelte-autofixer.js';
export { playground_link } from './playground-link.js';
export * from './get-documentation.js';
export * from './list-sections.js';
export * from './svelte-autofixer.js';
export * from './playground-link.js';

View File

@@ -1,47 +1,22 @@
import type { SvelteMcp } from '../../index.js';
import { format_sections_list } from '../../utils.js';
import { SECTIONS_LIST_INTRO, SECTIONS_LIST_OUTRO } from './prompts.js';
import { icons } from '../../icons/index.js';
import { tool } from 'tmcp/utils';
export async function list_sections_handler() {
const formatted_sections = await format_sections_list();
return `${SECTIONS_LIST_INTRO}\n\n${formatted_sections}\n\n${SECTIONS_LIST_OUTRO}`;
}
export function list_sections(server: SvelteMcp) {
server.tool(
{
name: 'list-sections',
enabled: () => false,
description:
'Lists all available Svelte 5 and SvelteKit documentation sections in a structured format. Each section includes a "use_cases" field that describes WHEN this documentation would be useful. You should carefully analyze the use_cases field to determine which sections are relevant for the user\'s query. The use_cases contain comma-separated keywords describing project types (e.g., "e-commerce", "blog"), features (e.g., "authentication", "forms"), components (e.g., "slider", "modal"), development stages (e.g., "deployment", "testing"), or "always" for fundamental concepts. Match these use_cases against the user\'s intent - for example, if building an e-commerce site, fetch sections with use_cases containing "e-commerce", "product listings", "shopping cart", etc. If building a slider, look for "slider", "carousel", "animation", etc. Returns sections as "* title: [section_title], use_cases: [use_cases], path: [file_path]". Always run list-sections FIRST for any Svelte query, then analyze ALL use_cases to identify relevant sections, and finally use get_documentation to fetch ALL relevant sections at once.',
annotations: {
title: 'List Sections',
destructiveHint: false,
readOnlyHint: true,
openWorldHint: false,
},
icons,
'Lists all available Svelte 5 and SvelteKit documentation sections in a structured format. Returns sections as a list of "* title: [section_title], path: [file_path]" - you can use either the title or path when querying a specific section via the get_documentation tool. Always run list_sections first for any query related to Svelte development to discover available content.',
},
async () => {
if (server.ctx.sessionId && server.ctx.custom?.track) {
await server.ctx.custom?.track?.(server.ctx.sessionId, 'list-sections');
}
try {
const content = await list_sections_handler();
return tool.text(content);
} catch (e) {
const error = e as Error;
if (server.ctx.sessionId && server.ctx.custom?.track) {
await server.ctx.custom?.track?.(
server.ctx.sessionId,
'list-sections-error',
error.message,
);
}
return tool.error(error.message);
}
() => {
return {
content: [
{
type: 'text',
text: 'tool list_sections called',
},
],
};
},
);
}

View File

@@ -1,102 +0,0 @@
import { InMemoryTransport } from '@tmcp/transport-in-memory';
import { beforeEach, describe, expect, it } from 'vitest';
import { server } from '../../index.js';
const transport = new InMemoryTransport(server);
let session: ReturnType<typeof transport.session>;
describe('playground-link tool', () => {
beforeEach(async () => {
session = transport.session();
await session.initialize(
'2025-06-18',
{},
{
name: 'test-client',
version: '1.0.0',
},
);
});
it('should create a playground link if App.svelte is present', async () => {
const result = await session.callTool<{ url: string }>('playground-link', {
name: 'My Playground',
tailwind: false,
files: {
'App.svelte': `Hi there!`,
},
});
expect(result.structuredContent).toBeDefined();
expect(result.structuredContent?.url).toBeDefined();
// Verify URL structure rather than exact match (gzip compression can vary by platform)
expect(result.structuredContent?.url).toMatch(/^https:\/\/svelte\.dev\/playground#H4sIA/);
expect(result.structuredContent?.url).toContain('svelte.dev/playground');
});
it('should have a content with the stringified version of structured content and an ui resource', async () => {
const result = await session.callTool<{ url: string }>('playground-link', {
name: 'My Playground',
tailwind: false,
files: {
'App.svelte': `Hi there!`,
},
});
expect(result.structuredContent).toBeDefined();
expect(result.content).toStrictEqual(
expect.arrayContaining([
expect.objectContaining({
type: 'text',
text: JSON.stringify(result.structuredContent),
}),
]),
);
// Verify resource structure without exact URL match (gzip compression can vary by platform)
expect(result.content).toStrictEqual(
expect.arrayContaining([
expect.objectContaining({
type: 'resource',
resource: expect.objectContaining({
uri: 'ui://svelte/playground-link',
mimeType: 'text/uri-list',
_meta: { 'mcpui.dev/ui-preferred-frame-size': ['100%', '1200px'] },
text: expect.stringMatching(/^https:\/\/svelte\.dev\/playground\/embed#H4sIA/),
}),
}),
]),
);
});
it('should have tool _meta with resource URI for MCP Apps hosts', async () => {
const tools = await session.listTools();
const playground_tool = tools.tools.find((t) => t.name === 'playground-link');
expect(playground_tool).toBeDefined();
expect(playground_tool?._meta).toStrictEqual({
ui: { resourceUri: 'ui://svelte/playground-link' },
});
});
it('should expose a resource for MCP Apps hosts', async () => {
const resources = await session.listResources();
const playground_resource = resources.resources.find(
(r) => r.uri === 'ui://svelte/playground-link',
);
expect(playground_resource).toBeDefined();
expect(playground_resource?.name).toBe('playground-link-ui');
});
it('should not create a playground link if App.svelte is missing', async () => {
const result = await session.callTool<{ url: string }>('playground-link', {
name: 'My Playground',
tailwind: false,
files: {
'Something.svelte': `Hi there!`,
},
});
expect(result.isError).toBe(true);
expect(result.content?.[0]).toStrictEqual({
type: 'text',
text: 'The files must contain an App.svelte file as the entry point',
});
});
});

View File

@@ -1,8 +1,5 @@
import { createUIResource } from '@mcp-ui/server';
import { tool } from 'tmcp/utils';
import * as v from 'valibot';
import { icons } from '../../icons/index.js';
import type { SvelteMcp } from '../../index.js';
import * as v from 'valibot';
async function compress_and_encode_text(input: string) {
const reader = new Blob([input]).stream().pipeThrough(new CompressionStream('gzip')).getReader();
@@ -30,232 +27,86 @@ type File = {
text: boolean;
};
const playground_link_schema = v.object({
name: v.pipe(
v.string(),
v.description('The name of the Playground, it should reflect the user task'),
),
tailwind: v.pipe(
v.boolean(),
v.description(
"If the code requires Tailwind CSS to work...only send true if it it's using tailwind classes in the code",
),
),
files: v.pipe(
v.record(v.string(), v.string()),
v.description(
"An object where all the keys are the filenames (with extensions) and the values are the file content. For example: { 'Component.svelte': '<script>...</script>', 'utils.js': 'export function ...' }. The playground accept multiple files so if are importing from other files just include them all at the root level.",
),
),
});
const playground_link_output_schema = v.object({
url: v.string(),
});
export async function playground_link_handler({
files,
name,
tailwind,
}: v.InferInput<typeof playground_link_schema>) {
const playground_base = new URL('https://svelte.dev/playground');
const playground_files: File[] = [];
let has_app_svelte = false;
for (const [filename, contents] of Object.entries(files)) {
if (filename === 'App.svelte') has_app_svelte = true;
playground_files.push({
type: 'file',
name: filename,
basename: filename.replace(/^.*[\\/]/, ''),
contents,
text: true,
});
}
if (!has_app_svelte) {
throw new Error('The files must contain an App.svelte file as the entry point');
}
const playground_config = {
name,
tailwind: tailwind ?? false,
files: playground_files,
};
playground_base.hash = await compress_and_encode_text(JSON.stringify(playground_config));
const url = playground_base.toString();
// use the embed path to have a cleaner UI for mcp-ui
playground_base.pathname = '/playground/embed';
return {
url,
iframe_url: playground_base.toString(),
};
}
// Create the UI resource for MCP Apps hosts (with adapter)
// This will be registered as a resource that MCP Apps hosts can fetch
const playground_ui_resource = createUIResource({
uri: 'ui://svelte/playground-link',
encoding: 'text',
resourceProps: {
_meta: {
ui: {
csp: {
connectDomains: ['https://svelte.dev'],
resourceDomains: ['https://svelte.dev'],
frameDomains: ['https://svelte.dev'],
baseUriDomains: ['https://svelte.dev'],
},
},
},
},
content: {
type: 'rawHtml',
// This is a placeholder HTML - the actual iframe URL will be set per-request
// MCP Apps hosts receive the tool input/output via postMessage
htmlString: `<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { width: 100%; height: 100%; }
iframe { width: 100%; height: 100%; border: none; display: none; }
.loading { display: flex; align-items: center; justify-content: center; height: 100%; font-family: system-ui, sans-serif; color: #666; }
</style>
</head>
<body>
<div class="loading" id="loading">Loading playground...</div>
<iframe id="playground" allow="clipboard-write"></iframe>
<script>
function size_changed() {
const width = document.body.scrollWidth;
window.parent.postMessage({
jsonrpc: '2.0',
method: 'ui/notifications/size-changed',
params: {
width,
height: 800
}
}, '*');
}
// Signal that the widget is ready
window.parent.postMessage({ type: 'ui-lifecycle-iframe-ready' }, '*');
// Listen for render data from the adapter (for MCP Apps hosts)
window.addEventListener('message', (event) => {
if (event.data.type === 'ui-lifecycle-iframe-render-data') {
const renderData = event.data.payload.renderData || {};
const toolOutput = renderData.toolOutput;
// The tool output contains the iframe URL
if (toolOutput && toolOutput.structuredContent && toolOutput.structuredContent.url) {
const iframe = document.getElementById('playground');
const loading = document.getElementById('loading');
// Convert the URL to embed URL
const embedUrl = toolOutput.structuredContent.url.replace('/playground#', '/playground/embed#');
iframe.src = embedUrl;
iframe.style.display = 'block';
iframe.addEventListener("load", () => {
size_changed();
});
loading.style.display = 'none';
}
}
});
</script>
</body>
</html>`,
},
uiMetadata: {
'preferred-frame-size': ['100%', '1200px'],
},
adapters: {
mcpApps: { enabled: true },
},
});
export function playground_link(server: SvelteMcp) {
// Register the UI resource so MCP Apps hosts can fetch it
server.resource(
{
name: 'playground-link-ui',
description: 'UI resource for the Svelte Playground widget',
uri: playground_ui_resource.resource.uri,
icons,
},
() => {
return {
contents: [playground_ui_resource.resource],
};
},
);
server.tool(
{
name: 'playground-link',
description:
'Generates a Playground link given a Svelte code snippet. Once you have the final version of the code you want to send to the user, ALWAYS ask the user if it wants a playground link to allow it to quickly check the code in the playground before calling this tool. NEVER use this tool if you have written the component to a file in the user project. The playground accept multiple files so if are importing from other files just include them all at the root level.',
schema: playground_link_schema,
outputSchema: playground_link_output_schema,
annotations: {
title: 'Playground Link',
destructiveHint: false,
readOnlyHint: true,
openWorldHint: false,
},
icons,
// For MCP Apps hosts - points to the registered resource
_meta: {
ui: {
resourceUri: playground_ui_resource.resource.uri,
},
},
schema: v.object({
name: v.pipe(
v.string(),
v.description('The name of the Playground, it should reflect the user task'),
),
tailwind: v.pipe(
v.boolean(),
v.description(
"If the code requires Tailwind CSS to work...only send true if it it's using tailwind classes in the code",
),
),
files: v.pipe(
v.record(v.string(), v.string()),
v.description(
"An object where all the keys are the filenames (with extensions) and the values are the file content. For example: { 'Component.svelte': '<script>...</script>', 'utils.js': 'export function ...' }. The playground accept multiple files so if are importing from other files just include them all at the root level.",
),
),
}),
outputSchema: v.object({
url: v.string(),
}),
},
async ({ files, name, tailwind }) => {
if (server.ctx.sessionId && server.ctx.custom?.track) {
await server.ctx.custom?.track?.(server.ctx.sessionId, 'playground-link');
const playground_base = new URL('https://svelte.dev/playground');
const playground_files: File[] = [];
let has_app_svelte = false;
for (const [filename, contents] of Object.entries(files)) {
if (filename === 'App.svelte') has_app_svelte = true;
playground_files.push({
type: 'file',
name: filename,
basename: filename.replace(/^.*[\\/]/, ''),
contents,
text: true,
});
}
try {
const result = await playground_link_handler({ files, name, tailwind });
if (!has_app_svelte) {
return {
isError: true,
content: [
{
type: 'text',
text: JSON.stringify({ url: result.url }),
text: JSON.stringify({
error: 'The files must contain an App.svelte file as the entry point',
}),
},
// Embedded resource for MCP-UI hosts (no adapter, uses externalUrl)
createUIResource({
uri: 'ui://svelte/playground-link',
content: {
type: 'externalUrl',
iframeUrl: result.iframe_url,
},
uiMetadata: {
'preferred-frame-size': ['100%', '1200px'],
},
encoding: 'text',
}),
],
structuredContent: { url: result.url },
};
} catch (e) {
const error = e as Error;
if (server.ctx.sessionId && server.ctx.custom?.track) {
await server.ctx.custom?.track?.(
server.ctx.sessionId,
'playground-link-error',
error.message,
);
}
return tool.error(error.message);
}
const playground_config = {
name,
tailwind: tailwind ?? false,
files: playground_files,
};
playground_base.hash = await compress_and_encode_text(JSON.stringify(playground_config));
const content = {
url: playground_base.toString(),
};
return {
content: [
{
type: 'text',
text: JSON.stringify(content),
},
],
structuredContent: content,
};
},
);
}

View File

@@ -1,5 +0,0 @@
export const SECTIONS_LIST_INTRO =
'List of available Svelte documentation sections with their intended use cases. The "use_cases" field describes WHEN each section would be useful - analyze these carefully to determine which sections match the user\'s query:';
export const SECTIONS_LIST_OUTRO =
"Carefully analyze the use_cases field for each section to identify which documentation is relevant for the user's specific query. The use_cases contain keywords for project types, features, components, and development stages. After identifying relevant sections, use the get-documentation tool with ALL relevant section titles or paths at once (can pass multiple sections as an array).";

View File

@@ -1,149 +0,0 @@
/* eslint-disable @typescript-eslint/no-explicit-any */
import { InMemoryTransport } from '@tmcp/transport-in-memory';
import { beforeEach, describe, expect, it } from 'vitest';
import { server } from '../../index.js';
const transport = new InMemoryTransport(server);
let session: ReturnType<typeof transport.session>;
async function autofixer_tool_call(
code: string,
is_error = false,
desired_svelte_version = 5,
async = false,
) {
const result = await session.callTool('svelte-autofixer', {
code,
desired_svelte_version,
filename: 'App.svelte',
async,
});
expect(result).toBeDefined();
if (is_error) {
return result as any;
}
expect(result.structuredContent).toBeDefined();
return result.structuredContent as any;
}
describe('svelte-autofixer tool', () => {
beforeEach(async () => {
session = transport.session();
session = transport.session();
await session.initialize(
'2025-06-18',
{},
{
name: 'test-client',
version: '1.0.0',
},
);
});
it('should add suggestions for js parse errors', async () => {
const content = await autofixer_tool_call(`<script>
$state count = 0;
</script>`);
expect(content.issues.length).toBeGreaterThan(0);
expect(content.suggestions).toContain(
"The code can't be compiled because a Javascript parse error. In case you are using runes like this `$state variable_name = 3;` or `$derived variable_name = 3 * count` that's not how runes are used. You need to use them as function calls without importing them: `const variable_name = $state(3)` and `const variable_name = $derived(3 * count)`.",
);
});
it('should add suggestions for snippets declared in script tag', async () => {
const content = await autofixer_tool_call(`<script>
{#snippet my_snippet()}
some content
{/snippet}
</script>`);
expect(content.issues.length).toBeGreaterThan(0);
expect(content.suggestions).toContain(
"The code can't be compiled because a Javascript parse error. The error suggests you have a `{#snippet ...}` block inside the `<script>` tag. Snippets are template syntax and should be declared in the markup section of the component, not in the script. Move the snippet outside of the `<script>` tag. Snippets declared in the markup can also be accessed in the script tag in case you need them.",
);
});
it('should error out if async is true with a version less than 5', async () => {
const content = await autofixer_tool_call(
`<script>
$state count = 0;
</script>`,
true,
4,
true,
);
expect(content.isError).toBeTruthy();
expect(content.content[0]).toBeDefined();
expect(content.content[0].text).toBe(
'The async option can only be used with Svelte version 5 or higher.',
);
});
it('should not add suggestion/issues if async is true and await is used in the template/derived', async () => {
const content = await autofixer_tool_call(
`<script>
import { slow_double } from './utils.js';
let count = $state(0);
let double = $derived(await slow_double(count));
</script>
{double}
{await slow_double(count)}`,
false,
5,
true,
);
expect(content.issues).toHaveLength(0);
expect(content.suggestions).toHaveLength(0);
expect(content.require_another_tool_call_after_fixing).toBeFalsy();
});
it('should add suggestion/issues if async is false and await is used in the template/derived', async () => {
const content = await autofixer_tool_call(
`<script>
import { slow_double } from './utils.js';
let count = $state(0);
let double = $derived(await slow_double(count));
</script>
{double}
{await slow_double(count)}`,
false,
5,
);
expect(content.issues.length).toBeGreaterThanOrEqual(1);
expect(content.issues).toEqual(
expect.arrayContaining([expect.stringContaining('experimental_async')]),
);
expect(content.require_another_tool_call_after_fixing).toBeTruthy();
});
it('should add suggestions for css invalid identifier', async () => {
const content = await autofixer_tool_call(`<script>
let my_color = $state('red');
</script>
<style>
.my-class {
color: {my_color};
}
</style>`);
expect(content.issues.length).toBeGreaterThan(0);
expect(content.suggestions).toContain(
"The code can't be compiled because a valid CSS identifier is expected. This sometimes means you are trying to use a variable in CSS like this: `color: {my_color}` but Svelte doesn't support that. You can use inline CSS variables for that `<div style:--color={my_color}></div>` and then use the variable as usual in CSS with `color: var(--color)`.",
);
});
it('should error in case the passed in version is different from 4 or 5', async () => {
const content = await autofixer_tool_call(`whatever`, true, 3);
expect(content.content).toBeDefined();
expect(content.content[0]).toBeDefined();
expect(content.content[0].text).toContain(
'The desired_svelte_version MUST be either 4 or 5 but received "3"',
);
});
});

View File

@@ -4,104 +4,6 @@ import * as v from 'valibot';
import { add_compile_issues } from '../../autofixers/add-compile-issues.js';
import { add_eslint_issues } from '../../autofixers/add-eslint-issues.js';
import { add_autofixers_issues } from '../../autofixers/add-autofixers-issues.js';
import { icons } from '../../icons/index.js';
import { tool } from 'tmcp/utils';
const autofixer_schema = v.object({
code: v.string(),
desired_svelte_version: v.pipe(
v.union([v.string(), v.number()]),
v.description(
'The desired svelte version...if possible read this from the package.json of the user project, otherwise use some hint from the wording (if the user asks for runes it wants version 5). Default to 5 in case of doubt.',
),
),
async: v.pipe(
v.optional(v.boolean()),
v.description(
'If true the code is an async component/module and might use await in the markup or top-level awaits in the script tag. If possible check the svelte.config.js/svelte.config.ts to check if the option is enabled otherwise asks the user if they prefer using it or not. You can only use this option if the version is 5.',
),
),
filename: v.pipe(
v.optional(v.string()),
v.description(
'The filename of the component if available, it MUST be only the Component name with .svelte or .svelte.ts extension and not the entire path.',
),
),
});
const autofixer_output_schema = v.object({
issues: v.array(v.string()),
suggestions: v.array(v.string()),
require_another_tool_call_after_fixing: v.boolean(),
});
export async function svelte_autofixer_handler({
code,
desired_svelte_version: desired_svelte_version_unchecked,
async,
filename: filename_or_path,
}: v.InferInput<typeof autofixer_schema>) {
// we validate manually because some clients don't support union in the input schema (looking at you cursor)
const parsed_version = v.safeParse(
v.union([v.literal(4), v.literal(5), v.literal('4'), v.literal('5')]),
desired_svelte_version_unchecked,
);
if (parsed_version.success === false) {
throw new Error(
`The desired_svelte_version MUST be either 4 or 5 but received "${desired_svelte_version_unchecked}"`,
);
}
const desired_svelte_version = parsed_version.output;
if (async && +desired_svelte_version < 5) {
throw new Error('The async option can only be used with Svelte version 5 or higher.');
}
const content: {
issues: string[];
suggestions: string[];
require_another_tool_call_after_fixing: boolean;
} = { issues: [], suggestions: [], require_another_tool_call_after_fixing: false };
try {
// just in case the LLM sends a full path we extract the filename...it's not really needed
// but it's nice to have a filename in the errors
const filename = filename_or_path ? basename(filename_or_path) : 'Component.svelte';
add_compile_issues(content, code, +desired_svelte_version, filename, async);
add_autofixers_issues(content, code, +desired_svelte_version, filename, async);
await add_eslint_issues(content, code, +desired_svelte_version, filename, async);
} catch (e: unknown) {
const error = e as Error & { start?: { line: number; column: number }; frame?: string };
content.issues.push(
`${error.message} at line ${error.start?.line}, column ${error.start?.column}`,
);
if (error.message.includes('js_parse_error')) {
// Check if the error frame contains template syntax that was incorrectly placed in the script tag
if (error.frame?.includes('{#snippet')) {
content.suggestions.push(
"The code can't be compiled because a Javascript parse error. The error suggests you have a `{#snippet ...}` block inside the `<script>` tag. Snippets are template syntax and should be declared in the markup section of the component, not in the script. Move the snippet outside of the `<script>` tag. Snippets declared in the markup can also be accessed in the script tag in case you need them.",
);
} else {
content.suggestions.push(
"The code can't be compiled because a Javascript parse error. In case you are using runes like this `$state variable_name = 3;` or `$derived variable_name = 3 * count` that's not how runes are used. You need to use them as function calls without importing them: `const variable_name = $state(3)` and `const variable_name = $derived(3 * count)`.",
);
}
} else if (error.message.includes('css_expected_identifier')) {
content.suggestions.push(
"The code can't be compiled because a valid CSS identifier is expected. This sometimes means you are trying to use a variable in CSS like this: `color: {my_color}` but Svelte doesn't support that. You can use inline CSS variables for that `<div style:--color={my_color}></div>` and then use the variable as usual in CSS with `color: var(--color)`.",
);
}
}
if (content.issues.length > 0 || content.suggestions.length > 0) {
content.require_another_tool_call_after_fixing = true;
}
return content;
}
export function svelte_autofixer(server: SvelteMcp) {
server.tool(
@@ -110,44 +12,75 @@ export function svelte_autofixer(server: SvelteMcp) {
title: 'Svelte Autofixer',
description:
'Given a svelte component or module returns a list of suggestions to fix any issues it has. This tool MUST be used whenever the user is asking to write svelte code before sending the code back to the user',
schema: autofixer_schema,
outputSchema: autofixer_output_schema,
schema: v.object({
code: v.string(),
desired_svelte_version: v.pipe(
v.union([v.literal(4), v.literal(5), v.literal('4'), v.literal('5')]),
v.description(
'The desired svelte version...if possible read this from the package.json of the user project, otherwise use some hint from the wording (if the user asks for runes it wants version 5). Default to 5 in case of doubt.',
),
),
filename: v.pipe(
v.optional(v.string()),
v.description(
'The filename of the component if available, it MUST be only the Component name with .svelte or .svelte.ts extension and not the entire path.',
),
),
}),
outputSchema: v.object({
issues: v.array(v.string()),
suggestions: v.array(v.string()),
require_another_tool_call_after_fixing: v.boolean(),
}),
annotations: {
title: 'Svelte Autofixer',
destructiveHint: false,
readOnlyHint: true,
openWorldHint: false,
},
icons,
},
async ({
code,
filename: filename_or_path,
desired_svelte_version: desired_svelte_version_unchecked,
async,
}) => {
if (server.ctx.sessionId && server.ctx.custom?.track) {
await server.ctx.custom?.track?.(server.ctx.sessionId, 'svelte-autofixer');
}
async ({ code, filename: filename_or_path, desired_svelte_version }) => {
const content: {
issues: string[];
suggestions: string[];
require_another_tool_call_after_fixing: boolean;
} = { issues: [], suggestions: [], require_another_tool_call_after_fixing: false };
try {
const content = await svelte_autofixer_handler({
code,
desired_svelte_version: desired_svelte_version_unchecked,
async,
filename: filename_or_path,
});
return tool.structured(content);
} catch (e) {
const error = e as Error;
if (server.ctx.sessionId && server.ctx.custom?.track) {
await server.ctx.custom?.track?.(
server.ctx.sessionId,
'svelte-autofixer-error',
error.message,
// just in case the LLM sends a full path we extract the filename...it's not really needed
// but it's nice to have a filename in the errors
const filename = filename_or_path ? basename(filename_or_path) : 'Component.svelte';
add_compile_issues(content, code, +desired_svelte_version, filename);
add_autofixers_issues(content, code, +desired_svelte_version, filename);
await add_eslint_issues(content, code, +desired_svelte_version, filename);
} catch (e: unknown) {
const error = e as Error & { start?: { line: number; column: number } };
content.issues.push(
`${error.message} at line ${error.start?.line}, column ${error.start?.column}`,
);
if (error.message.includes('js_parse_error')) {
content.suggestions.push(
"The code can't be compiled because a Javascript parse error. In case you are using runes like this `$state variable_name = 3;` or `$derived variable_name = 3 * count` that's not how runes are used. You need to use them as function calls without importing them: `const variable_name = $state(3)` and `const variable_name = $derived(3 * count)`.",
);
}
return tool.error(error.message);
}
if (content.issues.length > 0 || content.suggestions.length > 0) {
content.require_another_tool_call_after_fixing = true;
}
return {
content: [
{
type: 'text',
text: JSON.stringify(content),
},
],
structuredContent: content,
};
},
);
}

View File

@@ -1,14 +0,0 @@
export const icons = [
{
src: 'https://mcp.svelte.dev/logo.svg',
mimeType: 'image/svg+xml',
},
{
src: 'https://mcp.svelte.dev/logo.png',
mimeType: 'image/png',
},
{
src: 'data:image/png;base64,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',
mimeType: 'image/png',
},
];

View File

@@ -3,15 +3,12 @@ import { McpServer } from 'tmcp';
import { setup_prompts, setup_resources, setup_tools } from './handlers/index.js';
import type { LibSQLDatabase } from 'drizzle-orm/libsql';
import type { Schema } from '@sveltejs/mcp-schema';
import { icons } from './icons/index.js';
export const server = new McpServer(
{
name: 'Svelte MCP',
version: '0.0.1',
description: 'The official Svelte MCP server implementation',
websiteUrl: 'https://mcp.svelte.dev',
icons,
},
{
adapter: new ValibotJsonSchemaAdapter(),
@@ -24,18 +21,10 @@ export const server = new McpServer(
instructions:
'This is the official Svelte MCP server. It MUST be used whenever svelte development is involved. It can provide official documentation, code examples and correct your code. After you correct the component call this tool again to confirm all the issues are fixed.',
},
).withContext<{
db: LibSQLDatabase<Schema>;
track?: (sessionId: string, event: string, extra?: string) => Promise<void>;
}>();
).withContext<{ db: LibSQLDatabase<Schema> }>();
export type SvelteMcp = typeof server;
setup_tools(server);
setup_resources(server);
setup_prompts(server);
server.on('initialize', async ({ clientInfo: client_info }) => {
if (!server.ctx.custom?.track || !server.ctx.sessionId) return;
server.ctx.custom.track(server.ctx.sessionId, 'initialize', client_info.name);
});

View File

@@ -1,56 +0,0 @@
import * as v from 'valibot';
import { documentation_sections_schema } from '../lib/schemas.js';
import summary_data from '../use_cases.json' with { type: 'json' };
export async function fetch_with_timeout(
url: string,
timeout_ms: number = 10000,
): Promise<Response> {
try {
const response = await fetch(url, { signal: AbortSignal.timeout(timeout_ms) });
return response;
} catch (error) {
if (error instanceof Error && error.name === 'AbortError') {
throw new Error(`Request timed out after ${timeout_ms}ms`);
}
throw error;
}
}
const summaries = (summary_data.summaries || {}) as Record<string, string>;
export async function get_sections() {
const sections = await fetch_with_timeout(
'https://svelte.dev/docs/experimental/sections.json',
).then((res) => res.json());
const validated_sections = v.safeParse(documentation_sections_schema, sections);
if (!validated_sections.success) return [];
const mapped_sections = Object.entries(validated_sections.output).map(([, section]) => {
const original_slug = section.slug;
const cleaned_slug = original_slug.startsWith('docs/')
? original_slug.slice('docs/'.length)
: original_slug;
return {
title: section.metadata.title,
use_cases:
section.metadata.use_cases ??
summaries[original_slug] ??
summaries[cleaned_slug] ??
'use title and path to estimate use case',
slug: cleaned_slug,
// Use original slug in URL to ensure it still works
url: `https://svelte.dev/${original_slug}/llms.txt`,
};
});
return mapped_sections;
}
export async function format_sections_list() {
const sections = await get_sections();
return sections
.map((s) => `- title: ${s.title}, use_cases: ${s.use_cases}, path: ${s.slug}`)
.join('\n');
}

View File

@@ -36,18 +36,8 @@ export function parse(code: string, file_path: string) {
}
return all_scopes;
}
// walking the ast will also walk all the tokens if we don't remove them so we return them separately
// we also remove the parent which as a circular reference to the ast itself (and it's not needed since we use zimmerframe to walk the ast)
const {
ast: { tokens, ...ast },
} = parsed;
// @ts-expect-error we also have to delete it from the object or the circular reference remains
delete parsed.ast.tokens;
return {
ast,
tokens,
ast: parsed.ast,
scope_manager: parsed.scopeManager as ScopeManager,
visitor_keys: parsed.visitorKeys,
get all_scopes() {

View File

@@ -1,176 +0,0 @@
{
"generated_at": "2025-10-02T20:29:23.410Z",
"model": "claude-sonnet-4-5-20250929",
"total_sections": 167,
"successful_summaries": 167,
"failed_summaries": 0,
"summaries": {
"docs/cli/overview": "project setup, creating new svelte apps, scaffolding, cli tools, initializing projects",
"docs/cli/faq": "project setup, initializing new svelte projects, troubleshooting cli installation, package manager configuration",
"docs/cli/sv-create": "project setup, starting new sveltekit app, initializing project, creating from playground, choosing project template",
"docs/cli/sv-add": "project setup, adding features to existing projects, integrating tools, testing setup, styling setup, authentication, database setup, deployment adapters",
"docs/cli/sv-check": "code quality, ci/cd pipelines, error checking, typescript projects, pre-commit hooks, finding unused css, accessibility auditing, production builds",
"docs/cli/sv-migrate": "migration, upgrading svelte versions, upgrading sveltekit versions, modernizing codebase, svelte 3 to 4, svelte 4 to 5, sveltekit 1 to 2, adopting runes, refactoring deprecated apis",
"docs/cli/devtools-json": "development setup, chrome devtools integration, browser-based editing, local development workflow, debugging setup",
"docs/cli/drizzle": "database setup, sql queries, orm integration, data modeling, postgresql, mysql, sqlite, server-side data access, database migrations, type-safe queries",
"docs/cli/eslint": "code quality, linting, error detection, project setup, code standards, team collaboration, typescript projects",
"docs/cli/lucia": "authentication, login systems, user management, registration pages, session handling, auth setup",
"docs/cli/mdsvex": "blog, content sites, markdown rendering, documentation sites, technical writing, cms integration, article pages",
"docs/cli/paraglide": "internationalization, multi-language sites, i18n, translation, localization, language switching, global apps, multilingual content",
"docs/cli/playwright": "browser testing, e2e testing, integration testing, test automation, quality assurance, ci/cd pipelines, testing user flows",
"docs/cli/prettier": "code formatting, project setup, code style consistency, team collaboration, linting configuration",
"docs/cli/storybook": "component development, design systems, ui library, isolated component testing, documentation, visual testing, component showcase",
"docs/cli/sveltekit-adapter": "deployment, production builds, hosting setup, choosing deployment platform, configuring adapters, static site generation, node server, vercel, cloudflare, netlify",
"docs/cli/tailwind": "project setup, styling, css framework, rapid prototyping, utility-first css, design systems, responsive design, adding tailwind to svelte",
"docs/cli/vitest": "testing, unit tests, component testing, test setup, quality assurance, ci/cd pipelines, test-driven development",
"docs/kit/introduction": "learning sveltekit, project setup, understanding framework basics, choosing between svelte and sveltekit, getting started with full-stack apps",
"docs/kit/creating-a-project": "project setup, starting new sveltekit app, initial development environment, first-time sveltekit users, scaffolding projects",
"docs/kit/project-types": "deployment, project setup, choosing adapters, ssg, spa, ssr, serverless, mobile apps, desktop apps, pwa, offline apps, browser extensions, separate backend, docker containers",
"docs/kit/project-structure": "project setup, understanding file structure, organizing code, starting new project, learning sveltekit basics",
"docs/kit/web-standards": "always, any sveltekit project, data fetching, forms, api routes, server-side rendering, deployment to various platforms",
"docs/kit/routing": "routing, navigation, multi-page apps, project setup, file structure, api endpoints, data loading, layouts, error pages, always",
"docs/kit/load": "data fetching, api calls, database queries, dynamic routes, page initialization, loading states, authentication checks, ssr data, form data, content rendering",
"docs/kit/form-actions": "forms, user input, data submission, authentication, login systems, user registration, progressive enhancement, validation errors",
"docs/kit/page-options": "prerendering static sites, ssr configuration, spa setup, client-side rendering control, url trailing slash handling, adapter deployment config, build optimization",
"docs/kit/state-management": "sveltekit, server-side rendering, ssr, state management, authentication, data persistence, load functions, context api, navigation, component lifecycle",
"docs/kit/remote-functions": "data fetching, server-side logic, database queries, type-safe client-server communication, forms, user input, mutations, authentication, crud operations, optimistic updates",
"docs/kit/building-your-app": "production builds, deployment preparation, build process optimization, adapter configuration, preview before deployment",
"docs/kit/adapters": "deployment, production builds, hosting setup, choosing deployment platform, configuring adapters",
"docs/kit/adapter-auto": "deployment, production builds, hosting setup, choosing deployment platform, ci/cd configuration",
"docs/kit/adapter-node": "deployment, production builds, node.js hosting, custom server setup, environment configuration, reverse proxy setup, docker deployment, systemd services",
"docs/kit/adapter-static": "static site generation, ssg, prerendering, deployment, github pages, spa mode, blogs, documentation sites, marketing sites",
"docs/kit/single-page-apps": "spa mode, single-page apps, client-only rendering, static hosting, mobile app wrappers, no server-side logic, adapter-static setup, fallback pages",
"docs/kit/adapter-cloudflare": "deployment, cloudflare workers, cloudflare pages, hosting setup, production builds, serverless deployment, edge computing",
"docs/kit/adapter-cloudflare-workers": "deploying to cloudflare workers, cloudflare workers sites deployment, legacy cloudflare adapter, wrangler configuration, cloudflare platform bindings",
"docs/kit/adapter-netlify": "deployment, netlify hosting, production builds, serverless functions, edge functions, static site hosting",
"docs/kit/adapter-vercel": "deployment, vercel hosting, production builds, serverless functions, edge functions, isr, image optimization, environment variables",
"docs/kit/writing-adapters": "custom deployment, building adapters, unsupported platforms, adapter development, custom hosting environments",
"docs/kit/advanced-routing": "advanced routing, dynamic routes, file viewers, nested paths, custom 404 pages, url validation, route parameters, multi-level navigation",
"docs/kit/hooks": "authentication, logging, error tracking, request interception, api proxying, custom routing, internationalization, database initialization, middleware logic, session management",
"docs/kit/errors": "error handling, custom error pages, 404 pages, api error responses, production error logging, error tracking, type-safe errors",
"docs/kit/link-options": "routing, navigation, multi-page apps, performance optimization, link preloading, forms with get method, search functionality, focus management, scroll behavior",
"docs/kit/service-workers": "offline support, pwa, caching strategies, performance optimization, precaching assets, network resilience, progressive web apps",
"docs/kit/server-only-modules": "api keys, environment variables, sensitive data protection, backend security, preventing data leaks, server-side code isolation",
"docs/kit/snapshots": "forms, user input, preserving form data, multi-step forms, navigation state, preventing data loss, textarea content, input fields, comment systems, surveys",
"docs/kit/shallow-routing": "modals, dialogs, image galleries, overlays, history-driven ui, mobile-friendly navigation, photo viewers, lightboxes, drawer menus",
"docs/kit/observability": "performance monitoring, debugging, observability, tracing requests, production diagnostics, analyzing slow requests, finding bottlenecks, monitoring server-side operations",
"docs/kit/packaging": "building component libraries, publishing npm packages, creating reusable svelte components, library development, package distribution",
"docs/kit/auth": "authentication, login systems, user management, session handling, jwt tokens, protected routes, user credentials, authorization checks",
"docs/kit/performance": "performance optimization, slow loading pages, production deployment, debugging performance issues, reducing bundle size, improving load times",
"docs/kit/icons": "icons, ui components, styling, css frameworks, tailwind, unocss, performance optimization, dependency management",
"docs/kit/images": "image optimization, responsive images, performance, hero images, product photos, galleries, cms integration, cdn setup, asset management",
"docs/kit/accessibility": "always, any sveltekit project, screen reader support, keyboard navigation, multi-page apps, client-side routing, internationalization, multilingual sites",
"docs/kit/seo": "seo optimization, search engine ranking, content sites, blogs, marketing sites, public-facing apps, sitemaps, amp pages, meta tags, performance optimization",
"docs/kit/faq": "troubleshooting package imports, library compatibility issues, client-side code execution, external api integration, middleware setup, database configuration, view transitions, yarn configuration",
"docs/kit/integrations": "project setup, css preprocessors, postcss, scss, sass, less, stylus, typescript setup, adding integrations, tailwind, testing, auth, linting, formatting",
"docs/kit/debugging": "debugging, breakpoints, development workflow, troubleshooting issues, vscode setup, ide configuration, inspecting code execution",
"docs/kit/migrating-to-sveltekit-2": "migration, upgrading from sveltekit 1 to 2, breaking changes, version updates",
"docs/kit/migrating": "migrating from sapper, upgrading legacy projects, sapper to sveltekit conversion, project modernization",
"docs/kit/additional-resources": "troubleshooting, getting help, finding examples, learning sveltekit, project templates, common issues, community support",
"docs/kit/glossary": "rendering strategies, performance optimization, deployment configuration, seo requirements, static sites, spas, server-side rendering, prerendering, edge deployment, pwa development",
"docs/kit/@sveltejs-kit": "forms, form actions, server-side validation, form submission, error handling, redirects, json responses, http errors, server utilities",
"docs/kit/@sveltejs-kit-hooks": "middleware, request processing, authentication chains, logging, multiple hooks, request/response transformation",
"docs/kit/@sveltejs-kit-node-polyfills": "node.js environments, custom servers, non-standard runtimes, ssr setup, web api compatibility, polyfill requirements",
"docs/kit/@sveltejs-kit-node": "node.js adapter, custom server setup, http integration, streaming files, node deployment, server-side rendering with node",
"docs/kit/@sveltejs-kit-vite": "project setup, vite configuration, initial sveltekit setup, build tooling",
"docs/kit/$app-environment": "always, conditional logic, client-side code, server-side code, build-time logic, prerendering, development vs production, environment detection",
"docs/kit/$app-forms": "forms, user input, data submission, progressive enhancement, custom form handling, form validation",
"docs/kit/$app-navigation": "routing, navigation, multi-page apps, programmatic navigation, data reloading, preloading, shallow routing, navigation lifecycle, scroll handling, view transitions",
"docs/kit/$app-paths": "static assets, images, fonts, public files, base path configuration, subdirectory deployment, cdn setup, asset urls, links, navigation",
"docs/kit/$app-server": "remote functions, server-side logic, data fetching, form handling, api endpoints, client-server communication, prerendering, file reading, batch queries",
"docs/kit/$app-state": "routing, navigation, multi-page apps, loading states, url parameters, form handling, error states, version updates, page metadata, shallow routing",
"docs/kit/$app-stores": "legacy projects, sveltekit pre-2.12, migration from stores to runes, maintaining older codebases, accessing page data, navigation state, app version updates",
"docs/kit/$app-types": "routing, navigation, type safety, route parameters, dynamic routes, link generation, pathname validation, multi-page apps",
"docs/kit/$env-dynamic-private": "api keys, secrets management, server-side config, environment variables, backend logic, deployment-specific settings, private data handling",
"docs/kit/$env-dynamic-public": "environment variables, client-side config, runtime configuration, public api keys, deployment-specific settings, multi-environment apps",
"docs/kit/$env-static-private": "server-side api keys, backend secrets, database credentials, private configuration, build-time optimization, server endpoints, authentication tokens",
"docs/kit/$env-static-public": "environment variables, public config, client-side data, api endpoints, build-time configuration, public constants",
"docs/kit/$lib": "project setup, component organization, importing shared components, reusable ui elements, code structure",
"docs/kit/$service-worker": "offline support, pwa, service workers, caching strategies, progressive web apps, offline-first apps",
"docs/kit/configuration": "project setup, configuration, adapters, deployment, build settings, environment variables, routing customization, prerendering, csp security, csrf protection, path configuration, typescript setup",
"docs/kit/cli": "project setup, typescript configuration, generated types, ./$types imports, initial project configuration",
"docs/kit/types": "typescript, type safety, route parameters, api endpoints, load functions, form actions, generated types, jsconfig setup",
"docs/svelte/overview": "always, any svelte project, getting started, learning svelte, introduction, project setup, understanding framework basics",
"docs/svelte/getting-started": "project setup, starting new svelte project, initial installation, choosing between sveltekit and vite, editor configuration",
"docs/svelte/svelte-files": "always, any svelte project, component creation, project setup, learning svelte basics",
"docs/svelte/svelte-js-files": "shared reactive state, reusable reactive logic, state management across components, global stores, custom reactive utilities",
"docs/svelte/what-are-runes": "always, any svelte 5 project, understanding core syntax, learning svelte 5, migration from svelte 4",
"docs/svelte/$state": "always, any svelte project, core reactivity, state management, counters, forms, todo apps, interactive ui, data updates, class-based components",
"docs/svelte/$derived": "always, any svelte project, computed values, reactive calculations, derived data, transforming state, dependent values",
"docs/svelte/$effect": "canvas drawing, third-party library integration, dom manipulation, side effects, intervals, timers, network requests, analytics tracking",
"docs/svelte/$props": "always, any svelte project, passing data to components, component communication, reusable components, component props",
"docs/svelte/$bindable": "forms, user input, two-way data binding, custom input components, parent-child communication, reusable form fields",
"docs/svelte/$inspect": "debugging, development, tracking state changes, reactive state monitoring, troubleshooting reactivity issues",
"docs/svelte/$host": "custom elements, web components, dispatching custom events, component library, framework-agnostic components",
"docs/svelte/basic-markup": "always, any svelte project, basic markup, html templating, component structure, attributes, events, props, text rendering",
"docs/svelte/if": "always, conditional rendering, showing/hiding content, dynamic ui, user permissions, loading states, error handling, form validation",
"docs/svelte/each": "always, lists, arrays, iteration, product listings, todos, tables, grids, dynamic content, shopping carts, user lists, comments, feeds",
"docs/svelte/key": "animations, transitions, component reinitialization, forcing component remount, value-based ui updates, resetting component state",
"docs/svelte/await": "async data fetching, api calls, loading states, promises, error handling, lazy loading components, dynamic imports",
"docs/svelte/snippet": "reusable markup, component composition, passing content to components, table rows, list items, conditional rendering, reducing duplication",
"docs/svelte/@render": "reusable ui patterns, component composition, conditional rendering, fallback content, layout components, slot alternatives, template reuse",
"docs/svelte/@html": "rendering html strings, cms content, rich text editors, markdown to html, blog posts, wysiwyg output, sanitized html injection, dynamic html content",
"docs/svelte/@attach": "tooltips, popovers, dom manipulation, third-party libraries, canvas drawing, element lifecycle, interactive ui, custom directives, wrapper components",
"docs/svelte/@const": "computed values in loops, derived calculations in blocks, local variables in each iterations, complex list rendering",
"docs/svelte/@debug": "debugging, development, troubleshooting, tracking state changes, monitoring variables, reactive data inspection",
"docs/svelte/bind": "forms, user input, two-way data binding, interactive ui, media players, file uploads, checkboxes, radio buttons, select dropdowns, contenteditable, dimension tracking",
"docs/svelte/use": "custom directives, dom manipulation, third-party library integration, tooltips, click outside, gestures, focus management, element lifecycle hooks",
"docs/svelte/transition": "animations, interactive ui, modals, dropdowns, notifications, conditional content, show/hide elements, smooth state changes",
"docs/svelte/in-and-out": "animation, transitions, interactive ui, conditional rendering, independent enter/exit effects, modals, tooltips, notifications",
"docs/svelte/animate": "sortable lists, drag and drop, reorderable items, todo lists, kanban boards, playlist editors, priority queues, animated list reordering",
"docs/svelte/style": "dynamic styling, conditional styles, theming, dark mode, responsive design, interactive ui, component styling",
"docs/svelte/class": "always, conditional styling, dynamic classes, tailwind css, component styling, reusable components, responsive design",
"docs/svelte/await-expressions": "async data fetching, loading states, server-side rendering, awaiting promises in components, async validation, concurrent data loading",
"docs/svelte/scoped-styles": "always, styling components, scoped css, component-specific styles, preventing style conflicts, animations, keyframes",
"docs/svelte/global-styles": "global styles, third-party libraries, css resets, animations, styling body/html, overriding component styles, shared keyframes, base styles",
"docs/svelte/custom-properties": "theming, custom styling, reusable components, design systems, dynamic colors, component libraries, ui customization",
"docs/svelte/nested-style-elements": "component styling, scoped styles, dynamic styles, conditional styling, nested style tags, custom styling logic",
"docs/svelte/svelte-boundary": "error handling, async data loading, loading states, error recovery, flaky components, error reporting, resilient ui",
"docs/svelte/svelte-window": "keyboard shortcuts, scroll tracking, window resize handling, responsive layouts, online/offline detection, viewport dimensions, global event listeners",
"docs/svelte/svelte-document": "document events, visibility tracking, fullscreen detection, pointer lock, focus management, document-level interactions",
"docs/svelte/svelte-body": "mouse tracking, hover effects, cursor interactions, global body events, drag and drop, custom cursors, interactive backgrounds, body-level actions",
"docs/svelte/svelte-head": "seo optimization, page titles, meta tags, social media sharing, dynamic head content, multi-page apps, blog posts, product pages",
"docs/svelte/svelte-element": "dynamic content, cms integration, user-generated content, configurable ui, runtime element selection, flexible components",
"docs/svelte/svelte-options": "migration, custom elements, web components, legacy mode compatibility, runes mode setup, svg components, mathml components, css injection control",
"docs/svelte/stores": "shared state, cross-component data, reactive values, async data streams, manual control over updates, rxjs integration, extracting logic",
"docs/svelte/context": "shared state, avoiding prop drilling, component communication, theme providers, user context, authentication state, configuration sharing, deeply nested components",
"docs/svelte/lifecycle-hooks": "component initialization, cleanup tasks, timers, subscriptions, dom measurements, chat windows, autoscroll features, migration from svelte 4",
"docs/svelte/imperative-component-api": "project setup, client-side rendering, server-side rendering, ssr, hydration, testing, programmatic component creation, tooltips, dynamic mounting",
"docs/svelte/testing": "testing, quality assurance, unit tests, integration tests, component tests, e2e tests, vitest setup, playwright setup, test automation",
"docs/svelte/typescript": "typescript setup, type safety, component props typing, generic components, wrapper components, dom type augmentation, project configuration",
"docs/svelte/custom-elements": "web components, custom elements, component library, design system, framework-agnostic components, embedding svelte in non-svelte apps, shadow dom",
"docs/svelte/v4-migration-guide": "upgrading svelte 3 to 4, version migration, updating dependencies, breaking changes, legacy project maintenance",
"docs/svelte/v5-migration-guide": "migrating from svelte 4 to 5, upgrading projects, learning svelte 5 syntax changes, runes migration, event handler updates",
"docs/svelte/faq": "getting started, learning svelte, beginner setup, project initialization, vs code setup, formatting, testing, routing, mobile apps, troubleshooting, community support",
"docs/svelte/svelte": "migration from svelte 4 to 5, upgrading legacy code, component lifecycle hooks, context api, mounting components, event dispatchers, typescript component types",
"docs/svelte/svelte-action": "typescript types, actions, use directive, dom manipulation, element lifecycle, custom behaviors, third-party library integration",
"docs/svelte/svelte-animate": "animated lists, sortable items, drag and drop, reordering elements, todo lists, kanban boards, playlist management, smooth position transitions",
"docs/svelte/svelte-attachments": "library development, component libraries, programmatic element manipulation, migrating from actions to attachments, spreading props onto elements",
"docs/svelte/svelte-compiler": "build tools, custom compilers, ast manipulation, preprocessors, code transformation, migration scripts, syntax analysis, bundler plugins, dev tools",
"docs/svelte/svelte-easing": "animations, transitions, custom easing, smooth motion, interactive ui, modals, dropdowns, carousels, page transitions, scroll effects",
"docs/svelte/svelte-events": "window events, document events, global event listeners, event delegation, programmatic event handling, cleanup functions, media queries",
"docs/svelte/svelte-legacy": "migration from svelte 4 to svelte 5, upgrading legacy code, event modifiers, class components, imperative component instantiation",
"docs/svelte/svelte-motion": "animation, smooth transitions, interactive ui, sliders, counters, physics-based motion, drag gestures, accessibility, reduced motion",
"docs/svelte/svelte-reactivity-window": "responsive design, viewport tracking, scroll effects, window resize handling, online/offline detection, zoom level tracking",
"docs/svelte/svelte-reactivity": "reactive data structures, state management with maps/sets, game boards, selection tracking, url manipulation, query params, real-time clocks, media queries, responsive design",
"docs/svelte/svelte-server": "server-side rendering, ssr, static site generation, seo optimization, initial page load, pre-rendering, node.js server, custom server setup",
"docs/svelte/svelte-store": "state management, shared data, reactive stores, cross-component communication, global state, computed values, data synchronization, legacy svelte projects",
"docs/svelte/svelte-transition": "animations, transitions, interactive ui, modals, dropdowns, tooltips, notifications, svg animations, list animations, page transitions",
"docs/svelte/compiler-errors": "animation, transitions, keyed each blocks, list animations",
"docs/svelte/compiler-warnings": "accessibility, a11y compliance, wcag standards, screen readers, keyboard navigation, aria attributes, semantic html, interactive elements",
"docs/svelte/runtime-errors": "debugging errors, error handling, troubleshooting runtime issues, migration to svelte 5, component binding, effects and reactivity",
"docs/svelte/runtime-warnings": "debugging state proxies, console logging reactive values, inspecting state changes, development troubleshooting",
"docs/svelte/legacy-overview": "migrating from svelte 3/4 to svelte 5, maintaining legacy components, understanding deprecated features, gradual upgrade process",
"docs/svelte/legacy-let": "migration, legacy svelte projects, upgrading from svelte 4, understanding old reactivity, maintaining existing code, learning runes differences",
"docs/svelte/legacy-reactive-assignments": "legacy mode, migration from svelte 4, reactive statements, computed values, derived state, side effects",
"docs/svelte/legacy-export-let": "legacy mode, migration from svelte 4, maintaining older projects, component props without runes, exporting component methods, renaming reserved word props",
"docs/svelte/legacy-$$props-and-$$restProps": "legacy mode migration, component wrappers, prop forwarding, button components, reusable ui components, spreading props to child elements",
"docs/svelte/legacy-on": "legacy mode, event handling, button clicks, forms, user interactions, component communication, event forwarding, event modifiers",
"docs/svelte/legacy-slots": "legacy mode, migrating from svelte 4, component composition, reusable components, passing content to components, modals, layouts, wrappers",
"docs/svelte/legacy-$$slots": "legacy mode, conditional slot rendering, optional content sections, checking if slots provided, migrating from legacy to runes",
"docs/svelte/legacy-svelte-fragment": "named slots, component composition, layout systems, avoiding wrapper divs, legacy svelte projects, slot content organization",
"docs/svelte/legacy-svelte-component": "dynamic components, component switching, conditional rendering, legacy mode migration, tabbed interfaces, multi-step forms",
"docs/svelte/legacy-svelte-self": "recursive components, tree structures, nested menus, file explorers, comment threads, hierarchical data",
"docs/svelte/legacy-component-api": "migration from svelte 3/4 to 5, legacy component api, maintaining old projects, understanding deprecated patterns"
}
}

View File

@@ -1,163 +0,0 @@
# @sveltejs/mcp
## 0.1.18
### Patch Changes
- feat: expose playground link as MCP App ([#138](https://github.com/sveltejs/mcp/pull/138))
## 0.1.17
### Patch Changes
- fix: add suggestion for snippets declared in script tag ([#132](https://github.com/sveltejs/mcp/pull/132))
## 0.1.16
### Patch Changes
- feat: expose tools as JS api + cli ([#128](https://github.com/sveltejs/mcp/pull/128))
## 0.1.15
### Patch Changes
- fix: server.json version + update publisher ([`9dfb4de`](https://github.com/sveltejs/mcp/commit/9dfb4dedb42837c40c4e660f0f816d7cf9081fc4))
## 0.1.14
### Patch Changes
- fix: improve prompt to reduce token usage ([#124](https://github.com/sveltejs/mcp/pull/124))
## 0.1.13
### Patch Changes
- fix: revert name change and add title ([`98efa1e`](https://github.com/sveltejs/mcp/commit/98efa1e09ebcca7827b10dc6bc8e1699fc1e5171))
## 0.1.12
### Patch Changes
- fix: update server name on mcp registry ([`60297b3`](https://github.com/sveltejs/mcp/commit/60297b3c49bf110b48908e61b5d5d902ea1bdf39))
- chore: update tmcp ([#99](https://github.com/sveltejs/mcp/pull/99))
## 0.1.11
### Patch Changes
- fix: add `async` parameter to `svelte-autofixer` ([#94](https://github.com/sveltejs/mcp/pull/94))
- fix: install latest eslint svelte packages to support `$state.eager` ([`f6ce89f`](https://github.com/sveltejs/mcp/commit/f6ce89ff34faabc3d746a350ea347298ecfed2ec))
## 0.1.10
### Patch Changes
- fix: add icons to `server.json` ([`02c951b`](https://github.com/sveltejs/mcp/commit/02c951baa86ac8103ffc158a202c06cfe6b15c01))
- fix: add `preferred-frame-size` to UI resource ([`3fabcc0`](https://github.com/sveltejs/mcp/commit/3fabcc0f9bfee916c0deb9c2ffa931ed2168af2d))
- feat: support: `$state.eager` ([#90](https://github.com/sveltejs/mcp/pull/90))
## 0.1.9
### Patch Changes
- feat: return `mcp-ui` resource from `playground-link` ([#84](https://github.com/sveltejs/mcp/pull/84))
- feat: suggest against js variables in css ([#78](https://github.com/sveltejs/mcp/pull/78))
## 0.1.8
### Patch Changes
- fix: upgrade registry publisher cli ([`5fa2baa`](https://github.com/sveltejs/mcp/commit/5fa2baa27009f01e0e4e91cee7984b81a81c1c29))
## 0.1.7
### Patch Changes
- fix: use correct server schema version ([`579be87`](https://github.com/sveltejs/mcp/commit/579be877fa9f87f7f173450ca5bc918824d68282))
## 0.1.6
### Patch Changes
- fix: prevent `imported_runes` suggestion from being added for libs that are not svelte ([`87af64f`](https://github.com/sveltejs/mcp/commit/87af64f4bc6d07b75640eb987a33655654363997))
- feat: add svelte icon and website url for mcp server ([#75](https://github.com/sveltejs/mcp/pull/75))
- fix: use `data:` uri for local icon & add icons to tools + resources + prompts ([`cf62286`](https://github.com/sveltejs/mcp/commit/cf622869129382a97ad059bb1389f115907adc8e))
## 0.1.5
### Patch Changes
- fix: widen `desired_svelte_version` validation to accommodate some clients ([`3b301d7`](https://github.com/sveltejs/mcp/commit/3b301d7d9c2f49758023408f505bc4ca79caaff4))
- fix: minor tweaks to the prompt to allow for automatic sync ([#63](https://github.com/sveltejs/mcp/pull/63))
- feat: `read_state_with_dollar` autofixer ([#66](https://github.com/sveltejs/mcp/pull/66))
## 0.1.4
### Patch Changes
- fix: pass secrets in action and update `mcpName` ([`044f098`](https://github.com/sveltejs/mcp/commit/044f0988b935fff39911a861a648dfb276f5831a))
## 0.1.3
### Patch Changes
- fix: use DNS to publish MCP ([#59](https://github.com/sveltejs/mcp/pull/59))
## 0.1.2
### Patch Changes
- fix: publish to MCP registry (I really hope this time for real) ([`ef5241c`](https://github.com/sveltejs/mcp/commit/ef5241cbc204ad8bb84bde27db7c9d0a08280245))
## 0.1.1
### Patch Changes
- feat: publish mcp to registry (maybe for real this time) ([`132943d`](https://github.com/sveltejs/mcp/commit/132943db3b04dbbd322d08926c0880c990a61f5f))
## 0.1.0
### Minor Changes
- feat: publish to registry ([#45](https://github.com/sveltejs/mcp/pull/45))
### Patch Changes
- feat: add autofixer to tell the LLM to check if some function called in effect is assigning state #26 ([`73d7625`](https://github.com/sveltejs/mcp/commit/73d7625b3ca6a812ba91883ea668d80ff1e7c703))
- feat: add bind:this -> attachment and action -> attachment autofixer #20 ([`73d7625`](https://github.com/sveltejs/mcp/commit/73d7625b3ca6a812ba91883ea668d80ff1e7c703))
## 0.0.4
### Patch Changes
- fix: allow TS `.svelte.ts` modules ([#49](https://github.com/sveltejs/mcp/pull/49))
## 0.0.3
### Patch Changes
- fix: check effect.pre in assign-in-effect ([#41](https://github.com/sveltejs/mcp/pull/41))
- feat: `use_cases` documentation metadata ([#29](https://github.com/sveltejs/mcp/pull/29))
- fix: change title names to allow for claude code to use the prompt ([`725f785`](https://github.com/sveltejs/mcp/commit/725f785766d04e9ed810a7c3f6bcfdb2e2b8234c))
- fix: enable doc tools ([`cb316c5`](https://github.com/sveltejs/mcp/commit/cb316c5b3ebc712946969d2d57236d159e796d58))
## 0.0.2
### Patch Changes
- feat: latest version ([#25](https://github.com/sveltejs/mcp/pull/25))

View File

@@ -1,25 +0,0 @@
eb5f89b76fc45a97070fa481eb03977584a78e3dff2781402d43482f114e4d6a mcp-publisher_darwin_amd64.tar.gz
29fc1b46a6f6be2580129369a9b681204b11b425d9a44147d79c8c658c7b8474 mcp-publisher_darwin_amd64.tar.gz.sbom.json
9eddbbb95efd54b9503f6c0668f43bab3f04c856946d3c7164f6daead232402f mcp-publisher_darwin_arm64.tar.gz
a8349b0ea7916f34cf4ee4e1ced5b91bc1ded6d100312cbb2095da018710da04 mcp-publisher_darwin_arm64.tar.gz.sbom.json
c4b402b43a85166c3f840641ca1c9e6de5bfa1cf533c22576d663ccbda0711bb mcp-publisher_linux_amd64.tar.gz
6f21cf917055be885f16b93154e06379540236599cfad6af4404a8323bde74b7 mcp-publisher_linux_amd64.tar.gz.sbom.json
ba5d486f86b2cef48ea506e8314d901a5169dcd56a5d6e9daf18d41244316235 mcp-publisher_linux_arm64.tar.gz
8a0096a407b916ac7270732df017a26f6112c73a066252f6556b8956c492a0b4 mcp-publisher_linux_arm64.tar.gz.sbom.json
59ee8c4a997f94794db8db13f8809666631686a70a8d89a9f0fea993f9aede0f mcp-publisher_windows_amd64.tar.gz
57d211fd9181f698d126bd773b55c98b92454d19b1e32e77860766179a8a2e8e mcp-publisher_windows_amd64.tar.gz.sbom.json
1410952b0a5968cbe89590e7b4ee6105147ef7267cf0cd50095c9bec2ee3b0d7 mcp-publisher_windows_arm64.tar.gz
6cb93e118a89ed1419135bfbaa7401bd3b7a7c5680a0d8fd7c78728f9d860630 mcp-publisher_windows_arm64.tar.gz.sbom.json
ebc17c3b7a5b86f9c036acf1d44fb904bb363bad0ac1ac37b7979eb17cf3d218 registry-1.4.0.tar.gz
5fffe8b078513fa5fbb625a213d164bb391c7c85e216e541cab789517bc6365b registry_darwin_amd64.tar.gz
10a61cf4173d8b5be63044af0a10e6c809eebc1006c0c1643753a252db808ddd registry_darwin_amd64.tar.gz.sbom.json
437746a1045f093266ad7298a47be41dc44cc33ecaeec145449c4eefeddf8880 registry_darwin_arm64.tar.gz
4c0cb24bcef0658540fb044d771294efd662edecd2f7fae7b1ca7ca2ae68f83a registry_darwin_arm64.tar.gz.sbom.json
bd77fafcc881714a63a375a9bdb53a761a2b8e367a9d2759835126c993df2356 registry_linux_amd64.tar.gz
d62a461b174089fbcaa4f1ac096bca491d18bc7f70e93ce0824fe89dbe42e974 registry_linux_amd64.tar.gz.sbom.json
38cb9e6112ff11544ba8ec88c5c0f44d4c851504ec2e33d497e25616a6f7a21e registry_linux_arm64.tar.gz
84e5a004929e7231ae35350a1fe8fb08668fc05183e13d1d78004abf08a25f3b registry_linux_arm64.tar.gz.sbom.json
77ca9243d2f744f282b39d07625f802d77f593850a0392debabe407643a8579c registry_windows_amd64.tar.gz
bb043e8a6a8d187ffab8987d36d0018024115d9217af6d2ddd233f94aea880ea registry_windows_amd64.tar.gz.sbom.json
e4ee50e05a95f288b874f5e24c7716a5032548feeabc83b715193298cec06890 registry_windows_arm64.tar.gz
49f189b615bce3d09ea24ae5d80e0816ac69225b3c8901dd7be19ef9ca06830c registry_windows_arm64.tar.gz.sbom.json

View File

@@ -1,15 +1,14 @@
{
"name": "@sveltejs/mcp",
"version": "0.1.18",
"version": "0.0.1",
"type": "module",
"license": "MIT",
"mcpName": "dev.svelte/mcp",
"homepage": "https://github.com/sveltejs/mcp#readme",
"bugs": {
"url": "https://github.com/sveltejs/mcp/issues"
},
"bin": {
"svelte-mcp": "./dist/index.mjs"
"svelte-mcp": "./dist/index.js"
},
"repository": {
"type": "git",
@@ -19,35 +18,25 @@
"files": [
"dist"
],
"exports": {
".": {
"types": "./dist/handlers.d.mts",
"import": "./dist/handlers.mjs"
}
},
"publishConfig": {
"access": "public"
},
"scripts": {
"build": "tsdown && publint",
"build": "tsdown",
"dev": "tsdown --watch",
"test": "vitest",
"check": "tsc --noEmit",
"check:publint": "publint --strict",
"update:version": "node scripts/update-version.ts"
"check": "tsc --noEmit"
},
"devDependencies": {
"@sveltejs/mcp-server": "workspace:^",
"@tmcp/transport-stdio": "catalog:tmcp",
"@types/node": "catalog:tooling",
"publint": "catalog:tooling",
"tsdown": "catalog:tooling",
"typescript": "catalog:tooling",
"vitest": "catalog:tooling"
"@tmcp/transport-stdio": "^0.3.1",
"@types/node": "^22.15.17",
"publint": "^0.3.13",
"tsdown": "^0.11.9",
"typescript": "^5.8.3",
"vitest": "^3.1.3"
},
"dependencies": {
"eslint": "catalog:lint",
"sade": "catalog:tooling",
"tmcp": "catalog:tmcp"
"eslint": "^9.36.0"
}
}

View File

@@ -1,14 +0,0 @@
import { readFile, writeFile } from 'node:fs/promises';
import { resolve } from 'node:path';
const package_json_string = await readFile(resolve('./package.json'), 'utf-8');
const package_json = JSON.parse(package_json_string);
const server_json_path = resolve('./server.json');
const server_json_string = await readFile(server_json_path, 'utf-8');
const server_json = JSON.parse(server_json_string);
server_json.version = package_json.version;
server_json.packages[0].version = package_json.version;
await writeFile(server_json_path, JSON.stringify(server_json, null, '\t') + '\n', 'utf-8');

View File

@@ -1,41 +0,0 @@
{
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"name": "dev.svelte/mcp",
"title": "Svelte MCP",
"description": "The official Svelte MCP server providing docs and autofixing tools for Svelte development",
"repository": {
"id": "1054419133",
"url": "https://github.com/sveltejs/mcp",
"subfolder": "packages/mcp-stdio",
"source": "github"
},
"version": "0.1.18",
"websiteUrl": "https://svelte.dev/docs/mcp/overview",
"icons": [
{
"src": "https://mcp.svelte.dev/logo.svg",
"mimeType": "image/svg+xml"
},
{
"src": "https://mcp.svelte.dev/logo.png",
"mimeType": "image/png"
}
],
"packages": [
{
"registryType": "npm",
"identifier": "@sveltejs/mcp",
"version": "0.1.18",
"runtimeHint": "npx",
"transport": {
"type": "stdio"
}
}
],
"remotes": [
{
"url": "https://mcp.svelte.dev/mcp",
"type": "streamable-http"
}
]
}

View File

@@ -1,6 +0,0 @@
export {
list_sections_handler as listSections,
get_documentation_handler as getDocumentation,
svelte_autofixer_handler as svelteAutofixer,
playground_link_handler as playgroundLink,
} from '@sveltejs/mcp-server/handlers';

View File

@@ -1,65 +1,7 @@
#! /usr/bin/env node
import { server } from '@sveltejs/mcp-server';
import {
list_sections_handler,
get_documentation_handler,
svelte_autofixer_handler,
} from '@sveltejs/mcp-server/handlers';
import { readFile } from 'node:fs/promises';
import { existsSync } from 'node:fs';
import { StdioTransport } from '@tmcp/transport-stdio';
import sade from 'sade';
const cli = sade('svelte-mcp');
const transport = new StdioTransport(server);
cli.command('__mcp', '', { default: true }).action(() => {
const transport = new StdioTransport(server);
transport.listen();
});
cli
.command('list-sections')
.describe('List all the available documentation sections')
.action(async () => {
console.log(await list_sections_handler());
});
cli
.command('get-documentation <sections>')
.describe('Get documentation for specified sections, separated by commas')
.action(async (sections) => {
console.log(await get_documentation_handler({ section: sections.split(',') }));
});
cli
.command('svelte-autofixer <code_or_path>')
.describe(
'Detect and suggest fixes for Svelte code issues, because the terminal will substitute variables `$` should be correctly escaped',
)
.option('--async', 'Wether the project is using async svelte or not', false)
.option('--svelte-version', 'Which version of svelte to use...it can be 4 or 5', 5)
.action(async (code_or_path, { async, 'svelte-version': version }) => {
let code = code_or_path;
let is_path = false;
if (existsSync(code_or_path)) {
console.log('Detected file path, reading file...');
code = await readFile(code_or_path, 'utf-8');
is_path = true;
} else {
console.log('File not found, treating input as code...');
}
const desired_svelte_version = +version;
const result = await svelte_autofixer_handler({
code,
async: Boolean(async),
desired_svelte_version,
filename: is_path ? code_or_path : undefined,
});
console.log(result);
});
cli.parse(process.argv);
transport.listen();

View File

@@ -2,7 +2,7 @@ import { defineConfig } from 'tsdown';
export default defineConfig([
{
entry: ['./src/index.ts', './src/handlers.ts'],
entry: ['./src/index.ts'],
platform: 'node',
define: {
// some eslint-plugin-svelte code expects __filename to exists but in an ESM environment it does not.
@@ -13,9 +13,7 @@ export default defineConfig([
// the require would fail once executed in a project without eslint installed.
external: ['eslint'],
publint: true,
dts: {
eager: true,
},
dts: false,
treeshake: true,
clean: true,
target: 'esnext',

View File

@@ -1,7 +0,0 @@
# @sveltejs/opencode
## 0.0.2
### Patch Changes
- fix: show toast after a few seconds to avoid race condition ([`57e2d1d`](https://github.com/sveltejs/mcp/commit/57e2d1def1f5590d0a3dd6d269ac39f6397ffecf))

View File

@@ -1,147 +0,0 @@
import type { PluginInput } from '@opencode-ai/plugin';
import { existsSync, readFileSync } from 'fs';
import { homedir } from 'os';
import { join } from 'path';
import * as v from 'valibot';
const default_config = {
mcp: {
type: 'remote' as 'remote' | 'local',
enabled: true,
},
subagent: {
enabled: true,
},
instructions: {
enabled: true,
},
};
export const config_schema = v.object({
mcp: v.optional(
v.object({
type: v.optional(v.picklist(['remote', 'local'])),
enabled: v.optional(v.boolean()),
}),
),
subagent: v.optional(
v.object({
enabled: v.optional(v.boolean()),
}),
),
instructions: v.optional(
v.object({
enabled: v.optional(v.boolean()),
}),
),
});
export type McpConfig = v.InferInput<typeof config_schema>;
const GLOBAL_CONFIG_DIR = join(homedir(), '.config', 'opencode');
const GLOBAL_CONFIG_PATH = join(GLOBAL_CONFIG_DIR, 'svelte.json');
interface ConfigLoadResult {
data: Record<string, unknown> | null;
parse_error?: string;
}
function get_config_paths() {
// Global: ~/.config/opencode/svelte.json
let global_path: string | null = null;
if (existsSync(GLOBAL_CONFIG_PATH)) {
global_path = GLOBAL_CONFIG_PATH;
}
// Custom config directory: $OPENCODE_CONFIG_DIR/svelte.json
let config_dir_path: string | null = null;
const opencode_config_dir = process.env.OPENCODE_CONFIG_DIR;
if (opencode_config_dir) {
const config_json = join(opencode_config_dir, 'svelte.json');
if (existsSync(config_json)) {
config_dir_path = config_json;
}
}
// returning config_dir first so it has higher priority
return [config_dir_path, global_path];
}
function load_config_file(config_path: string): ConfigLoadResult {
let file_content: string;
try {
file_content = readFileSync(config_path, 'utf-8');
} catch {
// File doesn't exist or can't be read
return { data: null };
}
try {
const parsed = JSON.parse(file_content);
if (parsed === undefined || parsed === null) {
return { data: null, parse_error: 'Config file is empty or invalid' };
}
return { data: parsed };
} catch (error: unknown) {
return {
data: null,
parse_error: error instanceof Error ? error.message : 'Failed to parse config',
};
}
}
function merge_with_defaults(user_config: Partial<McpConfig>): McpConfig {
return {
mcp: {
...default_config.mcp,
...user_config.mcp,
},
subagent: {
...default_config.subagent,
...user_config.subagent,
},
instructions: {
...default_config.instructions,
...user_config.instructions,
},
};
}
export function get_mcp_config(ctx: PluginInput) {
const config_paths = get_config_paths();
for (const path of config_paths) {
if (path && existsSync(path)) {
const result = load_config_file(path);
if (result.parse_error) {
setTimeout(() => {
ctx.client.tui.showToast({
body: {
title: 'Svelte: Invalid opencode plugin config',
message: `${result.parse_error}\nUsing default values`,
variant: 'warning',
duration: 7000,
},
});
}, 7000);
return default_config;
}
const parsed = v.safeParse(config_schema, result.data);
if (parsed.success) {
return merge_with_defaults(parsed.output);
} else {
setTimeout(() => {
ctx.client.tui.showToast({
body: {
title: 'Svelte: Invalid opencode plugin config',
message: `${result.parse_error}\nUsing default values`,
variant: 'warning',
duration: 7000,
},
});
}, 7000);
}
}
}
return default_config;
}

View File

@@ -1,72 +0,0 @@
import type { Plugin } from '@opencode-ai/plugin';
import { readdir } from 'node:fs/promises';
import { dirname, join } from 'node:path';
import { fileURLToPath } from 'node:url';
import { get_mcp_config } from './config.js';
const current_dir = dirname(fileURLToPath(import.meta.url));
export const svelte_plugin: Plugin = async (ctx) => {
return {
async config(input) {
input.agent ??= {};
input.mcp ??= {};
input.instructions ??= [];
// by default we use svelte as the name for the svelte MCP server
let svelte_mcp_name = 'svelte';
// we loop over every mcp server to see if any of them is already the svelte MCP server
for (const name in input.mcp) {
const mcp = input.mcp[name];
if (
(mcp?.type === 'remote' && mcp.url.includes('https://mcp.svelte.dev/mcp')) ||
(mcp?.type === 'local' &&
mcp.command.some((cmd: string) => cmd.includes('@sveltejs/mcp')))
) {
// if we found the svelte MCP server, we store its name and break
svelte_mcp_name = name;
break;
}
}
const mcp_config = get_mcp_config(ctx);
if (mcp_config.instructions?.enabled !== false) {
const instructions_dir = join(current_dir, 'instructions');
const instructions_paths = await readdir(instructions_dir);
input.instructions.push(...instructions_paths.map((file) => join(instructions_dir, file)));
}
// if the user doesn't have the MCP server already we add one based on config
if (!input.mcp[svelte_mcp_name] && mcp_config.mcp?.enabled !== false) {
if (mcp_config.mcp?.type === 'remote') {
input.mcp[svelte_mcp_name] = {
type: 'remote',
url: 'https://mcp.svelte.dev/mcp',
};
} else {
input.mcp[svelte_mcp_name] = {
type: 'local',
command: ['npx', '-y', '@sveltejs/mcp'],
};
}
}
if (mcp_config.subagent?.enabled !== false) {
// we add the editor subagent that will be used when editing Svelte files to prevent wasting context on the main agent
input.agent['svelte-file-editor'] = {
color: '#ff3e00',
mode: 'subagent',
prompt: `You are a specialized Svelte coder. Always use the tools from the svelte MCP server to fetch documentation with \`get_documentation\` and validating the code with \`svelte_autofixer\`. If the autofixer returns any issue or suggestions solve them before summarizing the changes for the main agent.`,
description:
'Specialized Svelte 5 code editor. MUST BE USED PROACTIVELY when creating, editing, or reviewing any .svelte file or .svelte.ts/.svelte.js module and MUST use the tools from the MCP server. Fetches relevant documentation and validates code using the Svelte MCP server tools.',
permission: {
bash: 'ask',
edit: 'allow',
webfetch: 'ask',
},
tools: {
[`${svelte_mcp_name}_*`]: true,
},
};
}
},
};
};

View File

@@ -1,23 +0,0 @@
You are able to use the Svelte MCP server, where you have access to comprehensive Svelte 5 and SvelteKit documentation. Here's how to use the available tools effectively:
## Available MCP Tools:
### 1. list-sections
Use this FIRST to discover all available documentation sections. Returns a structured list with titles, use_cases, and paths.
When asked about Svelte or SvelteKit topics, ALWAYS use this tool at the start of the chat to find relevant sections.
### 2. get-documentation
Retrieves full documentation content for specific sections. Accepts single or multiple sections.
After calling the list-sections tool, you MUST analyze the returned documentation sections (especially the use_cases field) and then use the get-documentation tool to fetch ALL documentation sections that are relevant for the user's task.
### 3. svelte-autofixer
Analyzes Svelte code and returns issues and suggestions.
You MUST use this tool whenever writing Svelte code before sending it to the user. Keep calling it until no issues or suggestions are returned.
### 4. playground-link
Generates a Svelte Playground link with the provided code.
After completing the code, ask the user if they want a playground link. Only call this tool after user confirmation and NEVER if code was written to files in their project.

View File

@@ -1,35 +0,0 @@
{
"name": "@sveltejs/opencode",
"version": "0.0.2",
"type": "module",
"license": "MIT",
"homepage": "https://github.com/sveltejs/mcp#readme",
"bugs": {
"url": "https://github.com/sveltejs/mcp/issues"
},
"scripts": {
"check": "tsc --noEmit",
"generate-schema": "node --import node-resolve-ts/register scripts/generate-schema.ts"
},
"files": [
"index.ts",
"config.ts",
"instructions"
],
"repository": {
"type": "git",
"url": "git+https://github.com/sveltejs/mcp.git",
"path": "packages/opencode"
},
"publishConfig": {
"access": "public"
},
"dependencies": {
"valibot": "catalog:tooling"
},
"devDependencies": {
"@opencode-ai/plugin": "catalog:ai",
"@valibot/to-json-schema": "catalog:tooling",
"@types/node": "catalog:tooling"
}
}

View File

@@ -1,40 +0,0 @@
{
"type": "object",
"properties": {
"mcp": {
"type": "object",
"properties": {
"type": {
"enum": [
"remote",
"local"
]
},
"enabled": {
"type": "boolean"
}
},
"required": []
},
"subagent": {
"type": "object",
"properties": {
"enabled": {
"type": "boolean"
}
},
"required": []
},
"instructions": {
"type": "object",
"properties": {
"enabled": {
"type": "boolean"
}
},
"required": []
}
},
"required": [],
"$schema": "http://json-schema.org/draft-07/schema#"
}

View File

@@ -1,8 +0,0 @@
import { toJsonSchema } from '@valibot/to-json-schema';
import { config_schema } from '../config.js';
import fs from 'node:fs';
import path from 'node:path';
const json_schema = toJsonSchema(config_schema);
fs.writeFileSync(path.resolve('./schema.json'), JSON.stringify(json_schema, null, '\t'));

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