chore: add example

.changeset/young-pots-count.md

@@ -0,0 +1,5 @@
+---
+'@sveltejs/opencode': patch
+---
+
+feat: allow enabling a specific skill in opencode plugin

.github/workflows/sync-plugins.yml

@@ -53,7 +53,7 @@ jobs:
         run: pnpm sync-cursor-plugin
 
       - name: Sync OpenCode plugin
-        run: pnpm sync-opencode-plugin
+        run: pnpm sync-opencode-plugin && pnpm generate-opencode-jsonschema
 
       - name: Generate skills documentation
         run: pnpm generate-skill-docs
@@ -69,6 +69,7 @@ jobs:
             plugins/cursor/svelte/ \
             packages/opencode/skills/ \
             packages/opencode/instructions/ \
+            packages/opencode/schema.json \
             documentation/docs/ \
             || echo "changed=true" >> $GITHUB_OUTPUT
 
@@ -90,7 +91,7 @@ jobs:
             ## Changes
             - Synced `plugins/claude/svelte/` (skills, agents with `permissionMode`)
             - Synced `plugins/cursor/svelte/` (skills, agents, rules)
-            - Synced `packages/opencode/` (skills, instructions)
+            - Synced `packages/opencode/` (skills, instructions, schema)
             - Updated documentation
 
             ## Generated by

documentation/docs/50-opencode-plugin/opencode-plugin.md

@@ -32,7 +32,7 @@ The default configuration for the Svelte OpenCode plugin looks like this...
 		"enabled": true
 	},
 	"skills": {
-		"enabled": true
+		"enabled": true // it can also be an array of all the skills to enable like ['svelte-core-bestpractices']
 	},
 	"instructions": {
 		"enabled": true
@@ -40,6 +40,6 @@ The default configuration for the Svelte OpenCode plugin looks like this...
 }
 ```
 
-...but if you prefer, you can enable only the subagent, only the MCP, only the skills, or configure the kind of MCP server you want to use (`local` or `remote`).
+...but if you prefer, you can enable only the subagent, only the MCP, only the skills (`enabled` supports both a boolean or an array containing the name of all the skills to enable), or configure the kind of MCP server you want to use (`local` or `remote`).
 
 You can place this file in `./.opencode/svelte.json` (in your project), in `~/.config/opencode/svelte.json` or, if you have an `OPENCODE_CONFIG_DIR` environment variable specified, at `$OPENCODE_CONFIG_DIR/svelte.json`.

packages/opencode/config.ts

@@ -16,31 +16,57 @@ const default_config = {
 		enabled: true,
 	},
 	skills: {
-		enabled: true,
+		enabled: true as boolean | string[],
 	},
 };
 
 export const config_schema = v.object({
-	mcp: v.optional(
+	mcp: v.pipe(
-		v.object({
+		v.optional(
-			type: v.optional(v.picklist(['remote', 'local'])),
+			v.object({
-			enabled: v.optional(v.boolean()),
+				type: v.optional(v.picklist(['remote', 'local'])),
-		}),
+				enabled: v.optional(v.boolean()),
+			}),
+		),
+		v.description(
+			"Configuration for the MCP. You can chose if it should be enabled or not and the transport to use 'remote' (default) and 'local'.",
+		),
 	),
-	subagent: v.optional(
+	subagent: v.pipe(
-		v.object({
+		v.optional(
-			enabled: v.optional(v.boolean()),
+			v.object({
-		}),
+				enabled: v.optional(v.boolean()),
+			}),
+		),
+		v.description('Configuration for the subagent. You can choose if it should be enabled or not.'),
 	),
-	instructions: v.optional(
+	instructions: v.pipe(
-		v.object({
+		v.optional(
-			enabled: v.optional(v.boolean()),
+			v.object({
-		}),
+				enabled: v.optional(v.boolean()),
+			}),
+		),
+		v.description(
+			'Configuration for the automatic AGENTS.md injection. You can choose if it should be enabled or not.',
+		),
+		v.description(
+			'Configuration for the automatic AGENTS.md injection. You can choose if it should be enabled or not.',
+		),
 	),
-	skills: v.optional(
+	skills: v.pipe(
-		v.object({
+		v.optional(
-			enabled: v.optional(v.boolean()),
+			v.object({
-		}),
+				enabled: v.pipe(
+					v.optional(v.union([v.boolean(), v.array(v.string())])),
+					v.description(
+						'It can be either a boolean or an array containing the skills that you want to enable',
+					),
+				),
+			}),
+		),
+		v.description(
+			'Configuration for the skills. You can choose if it they should be enabled or not, or specify an array of skill names to enable only specific skills.',
+		),
 	),
 });
 

packages/opencode/index.ts

@@ -39,10 +39,20 @@ export const svelte_plugin: Plugin = async (ctx) => {
 				input.instructions.push(...instructions_paths.map((file) => join(instructions_dir, file)));
 			}
 
-			if (mcp_config.skills?.enabled !== false) {
+			const skills_enabled = mcp_config.skills?.enabled;
+			if (skills_enabled !== false) {
 				const skills_dir = join(current_dir, 'skills');
-				// @ts-expect-error -- skills is a new opencode feature
+				if (Array.isArray(skills_enabled)) {
-				input.skills.paths.push(skills_dir);
+					// only add specific skill directories by name
+					for (const skill_name of skills_enabled) {
+						const skill_path = join(skills_dir, skill_name);
+						// @ts-expect-error -- skills is a new opencode feature
+						input.skills.paths.push(skill_path);
+					}
+				} else {
+					// @ts-expect-error -- skills is a new opencode feature
+					input.skills.paths.push(skills_dir);
+				}
 			}
 
 			// if the user doesn't have the MCP server already we add one based on config

packages/opencode/schema.json

@@ -14,7 +14,8 @@
 					"type": "boolean"
 				}
 			},
-			"required": []
+			"required": [],
+			"description": "Configuration for the MCP. You can chose if it should be enabled or not and the transport to use 'remote' (default) and 'local'."
 		},
 		"subagent": {
 			"type": "object",
@@ -23,7 +24,8 @@
 					"type": "boolean"
 				}
 			},
-			"required": []
+			"required": [],
+			"description": "Configuration for the subagent. You can choose if it should be enabled or not."
 		},
 		"instructions": {
 			"type": "object",
@@ -32,16 +34,39 @@
 					"type": "boolean"
 				}
 			},
-			"required": []
+			"required": [],
+			"description": "Configuration for the automatic AGENTS.md injection. You can choose if it should be enabled or not."
 		},
 		"skills": {
 			"type": "object",
 			"properties": {
 				"enabled": {
-					"type": "boolean"
+					"anyOf": [
+						{
+							"type": "boolean"
+						},
+						{
+							"type": "array",
+							"items": {
+								"anyOf": [
+									{
+										"enum": [
+											"svelte-code-writer",
+											"svelte-core-bestpractices"
+										]
+									},
+									{
+										"type": "string"
+									}
+								]
+							}
+						}
+					],
+					"description": "It can be either a boolean or an array containing the skills that you want to enable"
 				}
 			},
-			"required": []
+			"required": [],
+			"description": "Configuration for the skills. You can choose if it they should be enabled or not, or specify an array of skill names to enable only specific skills."
 		}
 	},
 	"required": [],

packages/opencode/scripts/generate-schema.ts

@@ -3,6 +3,33 @@ import { config_schema } from '../config.js';
 import fs from 'node:fs';
 import path from 'node:path';
 
-const json_schema = toJsonSchema(config_schema);
+function get_skill_names(skills_dir: string) {
+	if (!fs.existsSync(skills_dir)) return [];
+	return fs
+		.readdirSync(skills_dir, { withFileTypes: true })
+		.filter((entry) => entry.isDirectory())
+		.map((entry) => entry.name);
+}
+
+const skills_dir = path.resolve('./skills');
+const skill_names = get_skill_names(skills_dir);
+const schema = config_schema;
+const json_schema = toJsonSchema(schema);
+
+// Post-process: inject skill name suggestions into the items schema.
+// This is the JSON Schema equivalent of `"a" | "b" | (string & {})` —
+// editors will autocomplete the known names but any string is still valid.
+if (skill_names.length > 0) {
+	// eslint-disable-next-line @typescript-eslint/no-explicit-any
+	const enabled = (json_schema as any).properties?.skills?.properties?.enabled;
+	if (enabled?.anyOf) {
+		const array_branch = enabled.anyOf.find((s: Record<string, unknown>) => s.type === 'array');
+		if (array_branch) {
+			array_branch.items = {
+				anyOf: [{ enum: skill_names }, { type: 'string' }],
+			};
+		}
+	}
+}
 
 fs.writeFileSync(path.resolve('./schema.json'), JSON.stringify(json_schema, null, '\t'));