Version Packages (#144)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

.changeset/config.json

@@ -7,5 +7,5 @@
 	"access": "public",
 	"baseBranch": "main",
 	"updateInternalDependencies": "patch",
-	"ignore": ["!@sveltejs/mcp"]
+	"ignore": ["!@sveltejs/mcp", "!@sveltejs/opencode"]
 }

.github/workflows/check.yml

@@ -21,7 +21,7 @@ jobs:
           version: 10.27.0
 
       - name: Setup Node.js
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
         with:
           node-version: '24'
           cache: 'pnpm'

.github/workflows/lint.yml

@@ -21,7 +21,7 @@ jobs:
           version: 10.27.0
 
       - name: Setup Node.js
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
         with:
           node-version: '24'
           cache: 'pnpm'

.github/workflows/publish-any-commit.yml

@@ -12,7 +12,7 @@ jobs:
         uses: actions/checkout@v6
 
       - run: corepack enable
-      - uses: actions/setup-node@v6
+      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
         with:
           node-version: 24
           cache: 'pnpm'
@@ -20,4 +20,4 @@ jobs:
       - name: Install dependencies
         run: pnpm install
 
-      - run: pnpm dlx pkg-pr-new publish --compact './packages/mcp-stdio' --pnpm
+      - run: pnpm dlx pkg-pr-new publish --compact './packages/mcp-stdio' './packages/opencode' --pnpm

.github/workflows/release.yml

@@ -29,7 +29,7 @@ jobs:
         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@v6
+      - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
         with:
           node-version: ${{ matrix.node }}
           package-manager-cache: false # pnpm is not installed yet
@@ -39,10 +39,11 @@ jobs:
           PNPM_VER=$(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@v6
+      - 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

.github/workflows/test.yml

@@ -21,7 +21,7 @@ jobs:
           version: 10.27.0
 
       - name: Setup Node.js
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
         with:
           node-version: '24'
           cache: 'pnpm'

.github/workflows/update-opencode-jsonschema.yml

@@ -0,0 +1,78 @@
+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

.github/workflows/update-prompt-docs.yml

@@ -24,7 +24,7 @@ jobs:
           fetch-depth: 0
 
       - name: Setup Node.js
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
         with:
           node-version: 24
           package-manager-cache: false # pnpm is not installed yet
@@ -37,10 +37,11 @@ jobs:
           npm i -g pnpm@$PNPM_VER
 
       - name: Setup Node.js with pnpm cache
-        uses: actions/setup-node@v6
+        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
@@ -55,7 +56,7 @@ jobs:
 
       - name: Create Pull Request
         if: steps.git-check.outputs.changed == 'true'
-        uses: peter-evans/create-pull-request@v8
+        uses: peter-evans/create-pull-request@98357b18bf14b5342f975ff684046ec3b2a07725 # v8.0.0
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           commit-message: 'docs: update prompts documentation'

.prettierignore

@@ -12,4 +12,6 @@ bun.lockb
 
 # Claude Code
 .claude/
-.changeset/
+.changeset/
+
+/packages/opencode/schema.json

documentation/docs/20-setup/20-local-setup.md

@@ -57,7 +57,7 @@ The `[scope]` must be `user`, `project` or `local`.
 
 ## OpenCode
 
-Run the command:
+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

documentation/docs/20-setup/30-remote-setup.md

@@ -48,7 +48,7 @@ The `[scope]` must be `user` or `project`.
 
 ## OpenCode
 
-Run the command:
+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

documentation/docs/40-claude-plugin/plugin.md

@@ -4,19 +4,19 @@ 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.
+The marketplace allows 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.
+If possible, we recommend that you 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
+To add the repository as a marketplace, launch Claude Code and type the following:
 
 ```bash
 /plugin marketplace add sveltejs/mcp
 ```
 
-once you do that you can install the svelte skill doing
+Then, install the Svelte skill:
 
 ```bash
 /plugin install svelte

documentation/docs/40-claude-plugin/skill.md

@@ -2,10 +2,10 @@
 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.
+Claude Skills are sets of markdown files that live in your `.claude` folder (or that you can upload via the Claude web/desktop app). 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).
+With those markdown files you can steer the agent's behaviour and, in our case, teach it 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 (for example, 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.
+You can find the skill inside the [`sveltejs/mcp`](https://github.com/sveltejs/mcp) repo in the [`plugins/svelte/skills`](https://github.com/sveltejs/mcp/tree/main/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 the Claude web/desktop app or to extract it inside your `.claude` folder.
 
 If you are using Claude Code you can also install it through the [Svelte marketplace](plugin).

documentation/docs/40-claude-plugin/subagent.md

@@ -6,6 +6,6 @@ The Svelte plugin includes a specialized subagent called `svelte-file-editor` de
 
 ## 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 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.

documentation/docs/40-opencode-plugin/index.md

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

documentation/docs/40-opencode-plugin/opencode-plugin.md

@@ -0,0 +1,39 @@
+---
+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`.

documentation/docs/40-opencode-plugin/opencode-subagent.md

@@ -0,0 +1,11 @@
+---
+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.

package.json

@@ -18,6 +18,7 @@
 		"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",

packages/mcp-server/src/mcp/handlers/tools/playground-link.test.ts

@@ -67,6 +67,24 @@ describe('playground-link tool', () => {
 		);
 	});
 
+	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',

packages/mcp-server/src/mcp/handlers/tools/playground-link.ts

@@ -1,8 +1,8 @@
-import type { SvelteMcp } from '../../index.js';
-import * as v from 'valibot';
-import { icons } from '../../icons/index.js';
 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';
 
 async function compress_and_encode_text(input: string) {
 	const reader = new Blob([input]).stream().pipeThrough(new CompressionStream('gzip')).getReader();
@@ -97,7 +97,106 @@ export async function playground_link_handler({
 	};
 }
 
+// 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',
@@ -112,6 +211,12 @@ export function playground_link(server: SvelteMcp) {
 				openWorldHint: false,
 			},
 			icons,
+			// For MCP Apps hosts - points to the registered resource
+			_meta: {
+				ui: {
+					resourceUri: playground_ui_resource.resource.uri,
+				},
+			},
 		},
 		async ({ files, name, tailwind }) => {
 			if (server.ctx.sessionId && server.ctx.custom?.track) {
@@ -125,6 +230,7 @@ export function playground_link(server: SvelteMcp) {
 							type: 'text',
 							text: JSON.stringify({ url: result.url }),
 						},
+						// Embedded resource for MCP-UI hosts (no adapter, uses externalUrl)
 						createUIResource({
 							uri: 'ui://svelte/playground-link',
 							content: {

packages/mcp-stdio/CHANGELOG.md

@@ -1,5 +1,11 @@
 # @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

packages/mcp-stdio/package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@sveltejs/mcp",
-	"version": "0.1.17",
+	"version": "0.1.18",
 	"type": "module",
 	"license": "MIT",
 	"mcpName": "dev.svelte/mcp",

packages/mcp-stdio/server.json

@@ -9,7 +9,7 @@
 		"subfolder": "packages/mcp-stdio",
 		"source": "github"
 	},
-	"version": "0.1.17",
+	"version": "0.1.18",
 	"websiteUrl": "https://svelte.dev/docs/mcp/overview",
 	"icons": [
 		{
@@ -25,7 +25,7 @@
 		{
 			"registryType": "npm",
 			"identifier": "@sveltejs/mcp",
-			"version": "0.1.17",
+			"version": "0.1.18",
 			"runtimeHint": "npx",
 			"transport": {
 				"type": "stdio"

packages/opencode/CHANGELOG.md

@@ -0,0 +1,13 @@
+# @sveltejs/opencode
+
+## 0.0.3
+
+### Patch Changes
+
+- chore: add README to opencode plugin ([`71295bc`](https://github.com/sveltejs/mcp/commit/71295bc11fb7bac6703e655f5fddead29967353c))
+
+## 0.0.2
+
+### Patch Changes
+
+- fix: show toast after a few seconds to avoid race condition ([`57e2d1d`](https://github.com/sveltejs/mcp/commit/57e2d1def1f5590d0a3dd6d269ac39f6397ffecf))

packages/opencode/README.md

@@ -0,0 +1,75 @@
+# @sveltejs/opencode
+
+OpenCode plugin for Svelte that provides the Svelte MCP server, a specialized file editor subagent and instruction files.
+
+## Installation
+
+Add `@sveltejs/opencode` to your OpenCode config (either global or local):
+
+```json
+{
+	"$schema": "https://opencode.ai/config.json",
+	"plugin": ["@sveltejs/opencode"]
+}
+```
+
+That's it! You now have the Svelte MCP server and the file editor subagent configured automatically.
+
+## Features
+
+### Svelte MCP Server
+
+The plugin automatically configures the [Svelte MCP server](https://mcp.svelte.dev) which provides:
+
+- **list-sections** - Discover available Svelte 5 and SvelteKit documentation sections
+- **get-documentation** - Retrieve full documentation content for specific sections
+- **svelte-autofixer** - Analyze Svelte code and get issues/suggestions
+- **playground-link** - Generate Svelte Playground links with provided code
+
+### Svelte File Editor Subagent
+
+A specialized subagent (`svelte-file-editor`) that is automatically used when creating, editing, or reviewing `.svelte`, `.svelte.ts`, or `.svelte.js` files. It fetches relevant documentation and validates code using the Svelte MCP server tools.
+
+### Agent Instructions
+
+The plugin injects instructions that teach the agent how to effectively use the Svelte MCP tools.
+
+## Configuration
+
+The default configuration:
+
+```json
+{
+	"$schema": "https://raw.githubusercontent.com/sveltejs/mcp/refs/heads/main/packages/opencode/schema.json",
+	"mcp": {
+		"type": "remote",
+		"enabled": true
+	},
+	"subagent": {
+		"enabled": true
+	},
+	"instructions": {
+		"enabled": true
+	}
+}
+```
+
+### Configuration Options
+
+| Option                 | Type                    | Default    | Description                                                                      |
+| ---------------------- | ----------------------- | ---------- | -------------------------------------------------------------------------------- |
+| `mcp.type`             | `"remote"` \| `"local"` | `"remote"` | Use the remote server at `mcp.svelte.dev` or run locally via `npx @sveltejs/mcp` |
+| `mcp.enabled`          | `boolean`               | `true`     | Enable/disable the MCP server                                                    |
+| `subagent.enabled`     | `boolean`               | `true`     | Enable/disable the Svelte file editor subagent                                   |
+| `instructions.enabled` | `boolean`               | `true`     | Enable/disable agent instructions injection                                      |
+
+### Config File Location
+
+Place your configuration at one of these locations:
+
+- `~/.config/opencode/svelte.json` (global)
+- `$OPENCODE_CONFIG_DIR/svelte.json` (if `OPENCODE_CONFIG_DIR` is set, takes priority)
+
+## License
+
+MIT

packages/opencode/config.ts

@@ -0,0 +1,147 @@
+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;
+}

packages/opencode/index.ts

@@ -0,0 +1,72 @@
+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,
+					},
+				};
+			}
+		},
+	};
+};

packages/opencode/instructions/opencode-agents.md

@@ -0,0 +1,23 @@
+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.

packages/opencode/package.json

@@ -0,0 +1,35 @@
+{
+	"name": "@sveltejs/opencode",
+	"version": "0.0.3",
+	"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"
+	}
+}

packages/opencode/schema.json

@@ -0,0 +1,40 @@
+{
+	"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#"
+}

packages/opencode/scripts/generate-schema.ts

@@ -0,0 +1,8 @@
+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'));

packages/opencode/tsconfig.json

@@ -0,0 +1,5 @@
+{
+	"extends": "../../tsconfig.json",
+	"include": ["index.ts", "config.ts", "scripts/*"],
+	"exclude": ["node_modules"]
+}

pnpm-lock.yaml

@@ -10,11 +10,14 @@ catalogs:
       specifier: ^0.71.0
       version: 0.71.0
     '@mcp-ui/server':
-      specifier: ^5.12.0
-      version: 5.12.0
+      specifier: ^5.16.3
+      version: 5.16.3
     '@modelcontextprotocol/inspector':
       specifier: ^0.18.0
       version: 0.18.0
+    '@opencode-ai/plugin':
+      specifier: ^1.1.21
+      version: 1.1.21
   lint:
     '@eslint/compat':
       specifier: ^2.0.0
@@ -116,6 +119,9 @@ catalogs:
     '@types/node':
       specifier: ^24.3.1
       version: 24.5.2
+    '@valibot/to-json-schema':
+      specifier: ^1.5.0
+      version: 1.5.0
     '@vercel/analytics':
       specifier: ^1.5.0
       version: 1.5.0
@@ -141,8 +147,8 @@ catalogs:
       specifier: ^5.0.0
       version: 5.9.2
     valibot:
-      specifier: ^1.1.0
-      version: 1.1.0
+      specifier: ^1.2.0
+      version: 1.2.0
     vite:
       specifier: ^7.0.4
       version: 7.1.7
@@ -316,7 +322,7 @@ importers:
     dependencies:
       '@mcp-ui/server':
         specifier: catalog:ai
-        version: 5.12.0
+        version: 5.16.3(hono@4.11.1)(react-dom@18.3.1(react@18.3.1))(react@18.3.1)(zod@4.1.8)
       '@sveltejs/mcp-schema':
         specifier: workspace:^
         version: link:../mcp-schema
@@ -365,7 +371,7 @@ importers:
     devDependencies:
       '@anthropic-ai/sdk':
         specifier: catalog:ai
-        version: 0.71.0(zod@3.25.76)
+        version: 0.71.0(zod@4.1.8)
       '@sveltejs/kit':
         specifier: catalog:svelte
         version: 2.43.5(@sveltejs/vite-plugin-svelte@6.2.1(svelte@5.39.6)(vite@7.1.7(@types/node@24.5.2)(jiti@2.6.0)(tsx@4.20.6)(yaml@2.8.1)))(svelte@5.39.6)(vite@7.1.7(@types/node@24.5.2)(jiti@2.6.0)(tsx@4.20.6)(yaml@2.8.1))
@@ -416,6 +422,22 @@ importers:
         specifier: catalog:tooling
         version: 4.0.1(@types/node@24.5.2)(jiti@2.6.0)(tsx@4.20.6)(yaml@2.8.1)
 
+  packages/opencode:
+    dependencies:
+      valibot:
+        specifier: catalog:tooling
+        version: 1.2.0(typescript@5.9.2)
+    devDependencies:
+      '@opencode-ai/plugin':
+        specifier: catalog:ai
+        version: 1.1.21
+      '@types/node':
+        specifier: catalog:tooling
+        version: 24.5.2
+      '@valibot/to-json-schema':
+        specifier: catalog:tooling
+        version: 1.5.0(valibot@1.2.0(typescript@5.9.2))
+
 packages:
 
   '@anthropic-ai/sdk@0.71.0':
@@ -1018,8 +1040,21 @@ packages:
     engines: {node: '>=18'}
     hasBin: true
 
-  '@mcp-ui/server@5.12.0':
-    resolution: {integrity: sha512-ZAAHsvzfrBgA0gkyIOjoKNTBTsD0VSJT4KXKHe+Fx/kBASctG6mrzK5gvxD/LLLliantN2UWLTKtEeI4DH4FRQ==}
+  '@mcp-ui/server@5.16.3':
+    resolution: {integrity: sha512-MZttML9tQC1B8f4SPgoT1BORfCDXqs4Ywb/mQ0wSwIYS9AuIWFLj1KXmvqC/zrG0SlNMlyvMSxEX/eVYsIoZaA==}
+
+  '@modelcontextprotocol/ext-apps@0.2.2':
+    resolution: {integrity: sha512-h8sN3QIBLqMsRXjKL76M5VmBQf3N0I1G1DiDiSYAgtdynYQctHqCs79WEo1d5wClyZVYBWXdRcxgiR/WBfSOqw==}
+    peerDependencies:
+      '@modelcontextprotocol/sdk': ^1.24.0
+      react: ^17.0.0 || ^18.0.0 || ^19.0.0
+      react-dom: ^17.0.0 || ^18.0.0 || ^19.0.0
+      zod: ^3.25.0 || ^4.0.0
+    peerDependenciesMeta:
+      react:
+        optional: true
+      react-dom:
+        optional: true
 
   '@modelcontextprotocol/inspector-cli@0.18.0':
     resolution: {integrity: sha512-QMPjKx8zKmX17S1LF2gWuwbYglKexkdgB0HhKZFXzGrQ0MYoKUsIgokMyV48xr4LipaLS3b2v3ut3nV/jhWeSg==}
@@ -1038,10 +1073,6 @@ packages:
     engines: {node: '>=22.7.5'}
     hasBin: true
 
-  '@modelcontextprotocol/sdk@1.18.2':
-    resolution: {integrity: sha512-beedclIvFcCnPrYgHsylqiYJVJ/CI47Vyc4tY8no1/Li/O8U4BTlJfy6ZwxkYwx+Mx10nrgwSVrA7VBbhh4slg==}
-    engines: {node: '>=18'}
-
   '@modelcontextprotocol/sdk@1.25.1':
     resolution: {integrity: sha512-yO28oVFFC7EBoiKdAn+VqRm+plcfv4v0xp6osG/VsCB0NlPZWi87ajbCZZ8f/RvOFLEu7//rSRmuZZ7lMoe3gQ==}
     engines: {node: '>=18'}
@@ -1070,6 +1101,67 @@ packages:
     resolution: {integrity: sha512-oGB+UxlgWcgQkgwo8GcEGwemoTFt3FIO9ababBmaGwXIoBKZ+GTy0pP185beGg7Llih/NSHSV2XAs1lnznocSg==}
     engines: {node: '>= 8'}
 
+  '@opencode-ai/plugin@1.1.21':
+    resolution: {integrity: sha512-oAWVlKG7LACGFYawfdHGMN6e+6lyN6F+zPVncFUB99BrTl/TjELE5gTZwU7MalGpjwfU77yslBOZm4BXVAYGvw==}
+
+  '@opencode-ai/sdk@1.1.21':
+    resolution: {integrity: sha512-4M6lBjRPlPz99Rb5rS5ZqKrb0UDDxOT9VTG06JpNxvA7ynTd8C50ckc2NGzWtvjarmxfaAk1VeuBYN/cq2pIKQ==}
+
+  '@oven/bun-darwin-aarch64@1.3.5':
+    resolution: {integrity: sha512-8GvNtMo0NINM7Emk9cNAviCG3teEgr3BUX9be0+GD029zIagx2Sf54jMui1Eu1IpFm7nWHODuLEefGOQNaJ0gQ==}
+    cpu: [arm64]
+    os: [darwin]
+
+  '@oven/bun-darwin-x64-baseline@1.3.5':
+    resolution: {integrity: sha512-p5q3rJk48qhLuLBOFehVc+kqCE03YrswTc6NCxbwsxiwfySXwcAvpF2KWKF/ZZObvvR8hCCvqe1F81b2p5r2dg==}
+    cpu: [x64]
+    os: [darwin]
+
+  '@oven/bun-darwin-x64@1.3.5':
+    resolution: {integrity: sha512-r33eHQOHAwkuiBJIwmkXIyqONQOQMnd1GMTpDzaxx9vf9+svby80LZO9Hcm1ns6KT/TBRFyODC/0loA7FAaffg==}
+    cpu: [x64]
+    os: [darwin]
+
+  '@oven/bun-linux-aarch64-musl@1.3.5':
+    resolution: {integrity: sha512-HKBeUlJdNduRkzJKZ5DXM+pPqntfC50/Hu2X65jVX0Y7hu/6IC8RaUTqpr8FtCZqqmc9wDK0OTL+Mbi9UQIKYQ==}
+    cpu: [arm64]
+    os: [linux]
+
+  '@oven/bun-linux-aarch64@1.3.5':
+    resolution: {integrity: sha512-zkcHPI23QxJ1TdqafhgkXt1NOEN8o5C460sVeNnrhfJ43LwZgtfcvcQE39x/pBedu67fatY8CU0iY00nOh46ZQ==}
+    cpu: [arm64]
+    os: [linux]
+
+  '@oven/bun-linux-x64-baseline@1.3.5':
+    resolution: {integrity: sha512-FeCQyBU62DMuB0nn01vPnf3McXrKOsrK9p7sHaBFYycw0mmoU8kCq/WkBkGMnLuvQljJSyen8QBTx+fXdNupWg==}
+    cpu: [x64]
+    os: [linux]
+
+  '@oven/bun-linux-x64-musl-baseline@1.3.5':
+    resolution: {integrity: sha512-TJiYC7KCr0XxFTsxgwQOeE7dncrEL/RSyL0EzSL3xRkrxJMWBCvCSjQn7LV1i6T7hFst0+3KoN3VWvD5BinqHA==}
+    cpu: [x64]
+    os: [linux]
+
+  '@oven/bun-linux-x64-musl@1.3.5':
+    resolution: {integrity: sha512-XkCCHkByYn8BIDvoxnny898znju4xnW2kvFE8FT5+0Y62cWdcBGMZ9RdsEUTeRz16k8hHtJpaSfLcEmNTFIwRQ==}
+    cpu: [x64]
+    os: [linux]
+
+  '@oven/bun-linux-x64@1.3.5':
+    resolution: {integrity: sha512-n7zhKTSDZS0yOYg5Rq8easZu5Y/o47sv0c7yGr2ciFdcie9uYV55fZ7QMqhWMGK33ezCSikh5EDkUMCIvfWpjA==}
+    cpu: [x64]
+    os: [linux]
+
+  '@oven/bun-windows-x64-baseline@1.3.5':
+    resolution: {integrity: sha512-rtVQB9/1XK8FWJgFtsOthbPifRMYypgJwxu+pK3NHx8WvFKmq7HcPDqNr8xLzGULjQEO7eAo2aOZfONOwYz+5g==}
+    cpu: [x64]
+    os: [win32]
+
+  '@oven/bun-windows-x64@1.3.5':
+    resolution: {integrity: sha512-T3xkODItb/0ftQPFsZDc7EAX2D6A4TEazQ2YZyofZToO8Q7y8YT8ooWdhd0BQiTCd66uEvgE1DCZetynwg2IoA==}
+    cpu: [x64]
+    os: [win32]
+
   '@oxc-project/types@0.101.0':
     resolution: {integrity: sha512-nuFhqlUzJX+gVIPPfuE6xurd4lST3mdcWOhyK/rZO0B9XWMKm79SuszIQEnSMmmDhq1DC8WWVYGVd+6F93o1gQ==}
 
@@ -1581,11 +1673,21 @@ packages:
     cpu: [arm64]
     os: [darwin]
 
+  '@rollup/rollup-darwin-arm64@4.55.1':
+    resolution: {integrity: sha512-p3grE2PHcQm2e8PSGZdzIhCKbMCw/xi9XvMPErPhwO17vxtvCN5FEA2mSLgmKlCjHGMQTP6phuQTYWUnKewwGg==}
+    cpu: [arm64]
+    os: [darwin]
+
   '@rollup/rollup-darwin-x64@4.52.2':
     resolution: {integrity: sha512-h11KikYrUCYTrDj6h939hhMNlqU2fo/X4NB0OZcys3fya49o1hmFaczAiJWVAFgrM1NCP6RrO7lQKeVYSKBPSQ==}
     cpu: [x64]
     os: [darwin]
 
+  '@rollup/rollup-darwin-x64@4.55.1':
+    resolution: {integrity: sha512-rDUjG25C9qoTm+e02Esi+aqTKSBYwVTaoS1wxcN47/Luqef57Vgp96xNANwt5npq9GDxsH7kXxNkJVEsWEOEaQ==}
+    cpu: [x64]
+    os: [darwin]
+
   '@rollup/rollup-freebsd-arm64@4.52.2':
     resolution: {integrity: sha512-/eg4CI61ZUkLXxMHyVlmlGrSQZ34xqWlZNW43IAU4RmdzWEx0mQJ2mN/Cx4IHLVZFL6UBGAh+/GXhgvGb+nVxw==}
     cpu: [arm64]
@@ -1611,6 +1713,11 @@ packages:
     cpu: [arm64]
     os: [linux]
 
+  '@rollup/rollup-linux-arm64-gnu@4.55.1':
+    resolution: {integrity: sha512-a59mwd1k6x8tXKcUxSyISiquLwB5pX+fJW9TkWU46lCqD/GRDe9uDN31jrMmVP3feI3mhAdvcCClhV8V5MhJFQ==}
+    cpu: [arm64]
+    os: [linux]
+
   '@rollup/rollup-linux-arm64-musl@4.52.2':
     resolution: {integrity: sha512-s+OPucLNdJHvuZHuIz2WwncJ+SfWHFEmlC5nKMUgAelUeBUnlB4wt7rXWiyG4Zn07uY2Dd+SGyVa9oyLkVGOjA==}
     cpu: [arm64]
@@ -1646,6 +1753,11 @@ packages:
     cpu: [x64]
     os: [linux]
 
+  '@rollup/rollup-linux-x64-gnu@4.55.1':
+    resolution: {integrity: sha512-a8G4wiQxQG2BAvo+gU6XrReRRqj+pLS2NGXKm8io19goR+K8lw269eTrPkSdDTALwMmJp4th2Uh0D8J9bEV1vg==}
+    cpu: [x64]
+    os: [linux]
+
   '@rollup/rollup-linux-x64-musl@4.52.2':
     resolution: {integrity: sha512-LSeBHnGli1pPKVJ79ZVJgeZWWZXkEe/5o8kcn23M8eMKCUANejchJbF/JqzM4RRjOJfNRhKJk8FuqL1GKjF5oQ==}
     cpu: [x64]
@@ -1676,6 +1788,11 @@ packages:
     cpu: [x64]
     os: [win32]
 
+  '@rollup/rollup-win32-x64-msvc@4.55.1':
+    resolution: {integrity: sha512-SPEpaL6DX4rmcXtnhdrQYgzQ5W2uW3SCJch88lB2zImhJRhIIK44fkUrgIV/Q8yUNfw5oyZ5vkeQsZLhCb06lw==}
+    cpu: [x64]
+    os: [win32]
+
   '@rtsao/scc@1.1.0':
     resolution: {integrity: sha512-zt6OdqaDoOnJ1ZYsCYGt9YmWzDXl4vQdKTyJev62gFhRGKdx7mcT54V9KIjg+d2wi9EXsPvAPKe7i7WjfVWB8g==}
 
@@ -1870,6 +1987,11 @@ packages:
     peerDependencies:
       valibot: ^1.1.0
 
+  '@valibot/to-json-schema@1.5.0':
+    resolution: {integrity: sha512-GE7DmSr1C2UCWPiV0upRH6mv0cCPsqYGs819fb6srCS1tWhyXrkGGe+zxUiwzn/L1BOfADH4sNjY/YHCuP8phQ==}
+    peerDependencies:
+      valibot: ^1.2.0
+
   '@vercel/analytics@1.5.0':
     resolution: {integrity: sha512-MYsBzfPki4gthY5HnYN7jgInhAZ7Ac1cYDoRWFomwGHWEX7odTEzbtg9kf/QSo7XEsEAqlQugA6gJ2WS2DEa3g==}
     peerDependencies:
@@ -4143,6 +4265,14 @@ packages:
       typescript:
         optional: true
 
+  valibot@1.2.0:
+    resolution: {integrity: sha512-mm1rxUsmOxzrwnX5arGS+U4T25RdvpPjPN4yR0u9pUBov9+zGVtO84tif1eY4r6zWxVxu3KzIyknJy3rxfRZZg==}
+    peerDependencies:
+      typescript: '>=5'
+    peerDependenciesMeta:
+      typescript:
+        optional: true
+
   vary@1.1.2:
     resolution: {integrity: sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg==}
     engines: {node: '>= 0.8'}
@@ -4346,11 +4476,6 @@ packages:
   zimmerframe@1.1.4:
     resolution: {integrity: sha512-B58NGBEoc8Y9MWWCQGl/gq9xBCe4IiKM0a2x7GZdQKOW5Exr8S1W24J6OgM1njK8xCRGvAJIL/MxXHf6SkmQKQ==}
 
-  zod-to-json-schema@3.24.6:
-    resolution: {integrity: sha512-h/z3PKvcTcTetyjl1fkj79MHNEjm+HpD6NXheWjzOekY7kV+lwDYnHw+ivHkijnCSMz1yJaWBD9vu/Fcmk+vEg==}
-    peerDependencies:
-      zod: ^3.24.1
-
   zod-to-json-schema@3.25.0:
     resolution: {integrity: sha512-HvWtU2UG41LALjajJrML6uQejQhNJx+JBO9IflpSja4R03iNWfKXrj6W2h7ljuLyc1nKS+9yDyL/9tD1U/yBnQ==}
     peerDependencies:
@@ -4359,13 +4484,16 @@ packages:
   zod@3.25.76:
     resolution: {integrity: sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==}
 
+  zod@4.1.8:
+    resolution: {integrity: sha512-5R1P+WwQqmmMIEACyzSvo4JXHY5WiAFHRMg+zBZKgKS+Q1viRa0C1hmUKtHltoIFKtIdki3pRxkmpP74jnNYHQ==}
+
 snapshots:
 
-  '@anthropic-ai/sdk@0.71.0(zod@3.25.76)':
+  '@anthropic-ai/sdk@0.71.0(zod@4.1.8)':
     dependencies:
       json-schema-to-ts: 3.1.1
     optionalDependencies:
-      zod: 3.25.76
+      zod: 4.1.8
 
   '@babel/generator@7.28.5':
     dependencies:
@@ -4938,11 +5066,42 @@ snapshots:
       - encoding
       - supports-color
 
-  '@mcp-ui/server@5.12.0':
+  '@mcp-ui/server@5.16.3(hono@4.11.1)(react-dom@18.3.1(react@18.3.1))(react@18.3.1)(zod@4.1.8)':
     dependencies:
-      '@modelcontextprotocol/sdk': 1.18.2
+      '@modelcontextprotocol/ext-apps': 0.2.2(@modelcontextprotocol/sdk@1.25.1(hono@4.11.1)(zod@4.1.8))(react-dom@18.3.1(react@18.3.1))(react@18.3.1)(zod@4.1.8)
+      '@modelcontextprotocol/sdk': 1.25.1(hono@4.11.1)(zod@4.1.8)
     transitivePeerDependencies:
+      - '@cfworker/json-schema'
+      - hono
+      - react
+      - react-dom
       - supports-color
+      - zod
+
+  '@modelcontextprotocol/ext-apps@0.2.2(@modelcontextprotocol/sdk@1.25.1(hono@4.11.1)(zod@4.1.8))(react-dom@18.3.1(react@18.3.1))(react@18.3.1)(zod@4.1.8)':
+    dependencies:
+      '@modelcontextprotocol/sdk': 1.25.1(hono@4.11.1)(zod@4.1.8)
+      prettier: 3.6.2
+      zod: 4.1.8
+    optionalDependencies:
+      '@oven/bun-darwin-aarch64': 1.3.5
+      '@oven/bun-darwin-x64': 1.3.5
+      '@oven/bun-darwin-x64-baseline': 1.3.5
+      '@oven/bun-linux-aarch64': 1.3.5
+      '@oven/bun-linux-aarch64-musl': 1.3.5
+      '@oven/bun-linux-x64': 1.3.5
+      '@oven/bun-linux-x64-baseline': 1.3.5
+      '@oven/bun-linux-x64-musl': 1.3.5
+      '@oven/bun-linux-x64-musl-baseline': 1.3.5
+      '@oven/bun-windows-x64': 1.3.5
+      '@oven/bun-windows-x64-baseline': 1.3.5
+      '@rollup/rollup-darwin-arm64': 4.55.1
+      '@rollup/rollup-darwin-x64': 4.55.1
+      '@rollup/rollup-linux-arm64-gnu': 4.55.1
+      '@rollup/rollup-linux-x64-gnu': 4.55.1
+      '@rollup/rollup-win32-x64-msvc': 4.55.1
+      react: 18.3.1
+      react-dom: 18.3.1(react@18.3.1)
 
   '@modelcontextprotocol/inspector-cli@0.18.0(hono@4.11.1)(zod@3.25.76)':
     dependencies:
@@ -5031,23 +5190,6 @@ snapshots:
       - typescript
       - utf-8-validate
 
-  '@modelcontextprotocol/sdk@1.18.2':
-    dependencies:
-      ajv: 6.12.6
-      content-type: 1.0.5
-      cors: 2.8.5
-      cross-spawn: 7.0.6
-      eventsource: 3.0.7
-      eventsource-parser: 3.0.6
-      express: 5.1.0
-      express-rate-limit: 7.5.1(express@5.1.0)
-      pkce-challenge: 5.0.0
-      raw-body: 3.0.1
-      zod: 3.25.76
-      zod-to-json-schema: 3.24.6(zod@3.25.76)
-    transitivePeerDependencies:
-      - supports-color
-
   '@modelcontextprotocol/sdk@1.25.1(hono@4.11.1)(zod@3.25.76)':
     dependencies:
       '@hono/node-server': 1.19.7(hono@4.11.1)
@@ -5070,6 +5212,28 @@ snapshots:
       - hono
       - supports-color
 
+  '@modelcontextprotocol/sdk@1.25.1(hono@4.11.1)(zod@4.1.8)':
+    dependencies:
+      '@hono/node-server': 1.19.7(hono@4.11.1)
+      ajv: 8.17.1
+      ajv-formats: 3.0.1(ajv@8.17.1)
+      content-type: 1.0.5
+      cors: 2.8.5
+      cross-spawn: 7.0.6
+      eventsource: 3.0.7
+      eventsource-parser: 3.0.6
+      express: 5.1.0
+      express-rate-limit: 7.5.1(express@5.1.0)
+      jose: 6.1.3
+      json-schema-typed: 8.0.2
+      pkce-challenge: 5.0.0
+      raw-body: 3.0.1
+      zod: 4.1.8
+      zod-to-json-schema: 3.25.0(zod@4.1.8)
+    transitivePeerDependencies:
+      - hono
+      - supports-color
+
   '@napi-rs/wasm-runtime@1.1.0':
     dependencies:
       '@emnapi/core': 1.7.1
@@ -5091,6 +5255,46 @@ snapshots:
       '@nodelib/fs.scandir': 2.1.5
       fastq: 1.19.1
 
+  '@opencode-ai/plugin@1.1.21':
+    dependencies:
+      '@opencode-ai/sdk': 1.1.21
+      zod: 4.1.8
+
+  '@opencode-ai/sdk@1.1.21': {}
+
+  '@oven/bun-darwin-aarch64@1.3.5':
+    optional: true
+
+  '@oven/bun-darwin-x64-baseline@1.3.5':
+    optional: true
+
+  '@oven/bun-darwin-x64@1.3.5':
+    optional: true
+
+  '@oven/bun-linux-aarch64-musl@1.3.5':
+    optional: true
+
+  '@oven/bun-linux-aarch64@1.3.5':
+    optional: true
+
+  '@oven/bun-linux-x64-baseline@1.3.5':
+    optional: true
+
+  '@oven/bun-linux-x64-musl-baseline@1.3.5':
+    optional: true
+
+  '@oven/bun-linux-x64-musl@1.3.5':
+    optional: true
+
+  '@oven/bun-linux-x64@1.3.5':
+    optional: true
+
+  '@oven/bun-windows-x64-baseline@1.3.5':
+    optional: true
+
+  '@oven/bun-windows-x64@1.3.5':
+    optional: true
+
   '@oxc-project/types@0.101.0': {}
 
   '@petamoriken/float16@3.9.2':
@@ -5472,9 +5676,15 @@ snapshots:
   '@rollup/rollup-darwin-arm64@4.52.2':
     optional: true
 
+  '@rollup/rollup-darwin-arm64@4.55.1':
+    optional: true
+
   '@rollup/rollup-darwin-x64@4.52.2':
     optional: true
 
+  '@rollup/rollup-darwin-x64@4.55.1':
+    optional: true
+
   '@rollup/rollup-freebsd-arm64@4.52.2':
     optional: true
 
@@ -5490,6 +5700,9 @@ snapshots:
   '@rollup/rollup-linux-arm64-gnu@4.52.2':
     optional: true
 
+  '@rollup/rollup-linux-arm64-gnu@4.55.1':
+    optional: true
+
   '@rollup/rollup-linux-arm64-musl@4.52.2':
     optional: true
 
@@ -5511,6 +5724,9 @@ snapshots:
   '@rollup/rollup-linux-x64-gnu@4.52.2':
     optional: true
 
+  '@rollup/rollup-linux-x64-gnu@4.55.1':
+    optional: true
+
   '@rollup/rollup-linux-x64-musl@4.52.2':
     optional: true
 
@@ -5529,6 +5745,9 @@ snapshots:
   '@rollup/rollup-win32-x64-msvc@4.52.2':
     optional: true
 
+  '@rollup/rollup-win32-x64-msvc@4.55.1':
+    optional: true
+
   '@rtsao/scc@1.1.0': {}
 
   '@standard-schema/spec@1.0.0': {}
@@ -5768,6 +5987,10 @@ snapshots:
     dependencies:
       valibot: 1.1.0(typescript@5.9.2)
 
+  '@valibot/to-json-schema@1.5.0(valibot@1.2.0(typescript@5.9.2))':
+    dependencies:
+      valibot: 1.2.0(typescript@5.9.2)
+
   '@vercel/analytics@1.5.0(@sveltejs/kit@2.43.5(@sveltejs/vite-plugin-svelte@6.2.1(svelte@5.39.6)(vite@7.1.7(@types/node@24.5.2)(jiti@2.6.0)(tsx@4.20.6)(yaml@2.8.1)))(svelte@5.39.6)(vite@7.1.7(@types/node@24.5.2)(jiti@2.6.0)(tsx@4.20.6)(yaml@2.8.1)))(react@18.3.1)(svelte@5.39.6)':
     optionalDependencies:
       '@sveltejs/kit': 2.43.5(@sveltejs/vite-plugin-svelte@6.2.1(svelte@5.39.6)(vite@7.1.7(@types/node@24.5.2)(jiti@2.6.0)(tsx@4.20.6)(yaml@2.8.1)))(svelte@5.39.6)(vite@7.1.7(@types/node@24.5.2)(jiti@2.6.0)(tsx@4.20.6)(yaml@2.8.1))
@@ -8123,6 +8346,10 @@ snapshots:
     optionalDependencies:
       typescript: 5.9.2
 
+  valibot@1.2.0(typescript@5.9.2):
+    optionalDependencies:
+      typescript: 5.9.2
+
   vary@1.1.2: {}
 
   vite-plugin-devtools-json@1.0.0(vite@7.1.7(@types/node@24.5.2)(jiti@2.6.0)(tsx@4.20.6)(yaml@2.8.1)):
@@ -8304,12 +8531,14 @@ snapshots:
 
   zimmerframe@1.1.4: {}
 
-  zod-to-json-schema@3.24.6(zod@3.25.76):
-    dependencies:
-      zod: 3.25.76
-
   zod-to-json-schema@3.25.0(zod@3.25.76):
     dependencies:
       zod: 3.25.76
 
+  zod-to-json-schema@3.25.0(zod@4.1.8):
+    dependencies:
+      zod: 4.1.8
+
   zod@3.25.76: {}
+
+  zod@4.1.8: {}

pnpm-workspace.yaml

@@ -5,8 +5,9 @@ packages:
 catalogs:
   ai:
     '@anthropic-ai/sdk': ^0.71.0
-    '@mcp-ui/server': ^5.12.0
+    '@mcp-ui/server': ^5.16.3
     '@modelcontextprotocol/inspector': ^0.18.0
+    '@opencode-ai/plugin': ^1.1.21
   lint:
     '@eslint/compat': ^2.0.0
     '@eslint/js': ^9.36.0
@@ -44,6 +45,7 @@ catalogs:
     '@svitejs/changesets-changelog-github-compact': ^1.2.0
     '@types/estree': ^1.0.8
     '@types/node': ^24.3.1
+    '@valibot/to-json-schema': ^1.5.0
     '@vercel/analytics': ^1.5.0
     dotenv: ^17.2.3
     node-resolve-ts: ^1.0.2
@@ -52,7 +54,7 @@ catalogs:
     ts-blank-space: ^0.6.2
     tsdown: ^0.18.0
     typescript: ^5.0.0
-    valibot: ^1.1.0
+    valibot: ^1.2.0
     vite: ^7.0.4
     vite-plugin-devtools-json: ^1.0.0
     vitest: ^4.0.0