cursorrules

A set of Cursor editor rules for developing the Logseq AI MCP server, including commands, TypeScript practices, code organization, and runtime-safety requirements. Cursor rules guide how the coding assistant works in a project.

In plain words
What is it for?
Use it when building, checking, linting, testing, or maintaining this TypeScript server and its handlers, schemas, utilities, and tests.
Why use it?
It gives the assistant project-specific expectations so changes follow the repository's development and quality conventions.

Cursor rule for Cursor

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add rules/eugeneyvt/logseq-mcp-server/cursorrules
Clone the repo
git clone --depth 1 https://github.com/eugeneyvt/logseq-mcp-server

Made for: Cursor.

Per session 2,085 This file is loaded in full into every session.
When invoked 2,085 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.02085 $0.02085
Opus 5 $0.01043 $0.01043
Sonnet 5 $0.00417 $0.00417
Haiku 4.5 $0.00209 $0.00209

Measured 2d ago against content hash c4dc3a67ebf4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

cursorrules scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.cursorrules · 228 lines

How it starts

The opening of the file, as written. The whole thing — 228 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Logseq AI MCP Server - Cursor Rules

Common Commands

# Development
npm run dev                 # Start development server
npm run build              # Build the project
npm run type-check          # Run TypeScript type checking
npm run lint               # Run ESLint
npm run test               # Run test suite
npm run test:watch         # Run tests in watch mode

# Package management
npm install                # Install dependencies
npm audit                  # Check for security vulnerabilities

Code Quality & Maintainability Principles

  • ALWAYS use TypeScript with strict mode enabled
  • Prefer explicit types over any or unknown
  • Enforce consistent code style with ESLint + Prettier (or Biome)
  • Keep functions small and single-purpose (SRP)
  • Use clear naming for handlers, schemas, and RPC methods
  • Organize code into modules (/handlers, /schemas, /utils, /tests)
  • Document public methods and exported types with JSDoc
  • Use named functional components only
  • Place hooks above JSX
  • Split components >250 LOC
  • Avoid useEffect unless truly needed
  • Use memo/useCallback/useMemo only when necessary

Runtime Safety Requirements

  • YOU MUST validate all incoming JSON-RPC requests with Zod (or JSON Schema)
  • YOU MUST validate all outgoing responses before sending back
  • Always return proper JSON-RPC error codes (-32600, -32601, -32602, -32603)
  • Avoid throwing raw errors — wrap them in structured error helpers
  • Sanitize and redact sensitive data in logs

Testing & CI Standards

  • Write unit tests for each handler (Vitest/Jest)
  • Add at least one integration test that spins up the server and executes RPC calls
  • Use mocked inputs/outputs for edge cases (empty data, invalid payloads, timeouts)
  • Run tsc --noEmit, lint, and test in CI pipeline
  • Ensure 100% type-check clean (no ts-ignore)

Build & Tooling

  • Bundle with tsup or esbuild for small, fast CLI output
  • Expose CLI entry via bin in package.json
  • Use #!/usr/bin/env node in CLI entry point
  • Ensure build outputs both CJS and ESM (for compatibility)
  • Add "type": "module" in package.json if using ESM
  • Automate versioning and changelogs with Changesets (optional)

Read the full file on GitHub · 228 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 228 lines · 2,085 tokens per session scan A c4dc3a67ebf4

Subscribe to this mod's changes

cursorrules is a cursor rule published in the GitHub repository eugeneyvt/logseq-mcp-server (7 stars, last pushed 1y ago), licensed MIT. It adds 2,085 tokens to every session, about $0.0104 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.