---
alwaysApply: true
---
{
"name": "SynergyDE MCP server",
"description": "Rules for building and maintaining a Node.js MCP server that exposes Synergy/DE documentation over stdio.",
"patterns": [
"/*.ts",
"/.tsx",
"**/.js",
"package.json",
"tsconfig.json",
".cursor/mcp.json",
"README.md"
],
"priority": "high",
"alwaysActive": true,
"instructions": [
"This project is a Node.js Model Context Protocol (MCP) server that exposes Synergy/DE documentation as tools and resources over stdio.",
"Use modern TypeScript or modern JavaScript with ES modules. Prefer TypeScript where possible.",
"Use the official MCP SDK for Node.js (for example '@modelcontextprotocol/sdk') and follow typical patterns: create a server instance, define tools with JSON schema, and use stdio transport.",
"The server should be read-only and must not attempt to modify any remote Synergex resources.",
"Implement tools with the following approximate shapes: 'search_docs', 'get_topic', 'get_related_topics', 'list_section_topics', and 'describe_docs'. Each tool should have clear input JSON schema and explicit output structure, suitable for LLM consumption.",
"When defining tool schemas, be explicit about required fields and types. Use descriptive 'description' strings so the AI knows when to call a tool.",
"Implement a 'DocProvider' abstraction that can support both online docs (via HTTP requests to the Synergy/DE docs site) and optional local docs from the file system.",
"When working with online documentation, respect the existing site structure under the public Synergy/DE docs URLs (for example versioned paths under the docs root) and avoid relying on private APIs. Keep HTTP access read-only.",
"Design the internal model around 'Topic' and 'TopicChunk' entities with fields such as 'id', 'version', 'title', 'section', 'path', 'summary', 'body_chunks', and 'links'. Use small, LLM-friendly text chunks.",
"Implement a simple search index over topics (title, summary, body text). A straightforward in-memory search (e.g., basic scoring by term frequency) is sufficient unless more is explicitly requested.",
"Implement caching of fetched and parsed topics on disk (for example in a cache directory), keyed by version and topic ID, to avoid repeated network calls.",
"Implement robust HTML parsing for the docs: strip headers/footers/navigation, keep the main content, and convert it to plain text while preserving headings and important structure where possible. Avoid copying any styling or scripts.",
"Split long documentation topics into multiple 'TopicChunk' objects based on headings and reasonable character/token limits suitable for LLM context windows.",
"When adding or editing tools, keep them idempotent and deterministic: given the same arguments and docs version, the result should be stable.",
"All tools must validate inputs defensively and return structured error objects on invalid parameters, missing topics, or network failures. Do not throw unhandled exceptions.",
"Use environment variables for configuration such as 'SYNERGYDE_DOC_BASE_URL', 'SYNERGYDE_DOC_DEFAULT_VERSION', 'SYNERGYDE_LOCAL_DOC_PATH', and 'SYNERGYDE_CACHE_DIR'. Provide sane defaults when reasonable.",
"Ensure the MCP server can be launched via a simple Node.js command (for example 'node dist/server.js') so it can be referenced from Cursor's MCP configuration.",
"When Cursor asks for setup scripts, generate a minimal but complete Node.js project: package.json, tsconfig.json (if TypeScript), src/server.ts, and any necessary src/lib/* modules for providers, parsing, and search.",
"Prefer small, composable modules instead of large monolithic files. Group related logic (providers, parsing, search, tools registration) into separate files.",
"Write clean, strongly typed function signatures and avoid using 'any' in TypeScript unless absolutely necessary.",
"Add operational logging at a debug level for tool invocations, HTTP fetches, cache hits/misses, and parsing errors. Logging should be optional and controllable via environment variables.",
"When adding tests, prefer lightweight unit tests for core parsing and search logic. Focus on deterministic behavior over full end-to-end tests.",
"Aim for clarity and maintainability over micro-optimizations. The primary goal is reliable, predictable behavior in Cursor."
]
}
