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.
npx agentmods add rules/sotayamashita/openapi-mcp-server/typescript-coding-rulegit clone --depth 1 https://github.com/sotayamashita/openapi-mcp-serverWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00000 | $0.00225 |
| Opus 5 | $0.00000 | $0.00112 |
| Sonnet 5 | $0.00000 | $0.00045 |
| Haiku 4.5 | $0.00000 | $0.00022 |
Grade A, and why
typescript-coding-rule 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 3d 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.
What it actually says
Common
- Use English for all comments
Comments and documentation
JSDoc tags
It allows a subset of JSDoc tags. Most tags must occupy their own line, with the tag at the beginning of the line.
/**
* The "param" tag must occupy its own line and may not be combined.
* @param left A description of the left param.
* @param right A description of the right param.
*/
function add(left: number, right: number) { ... }
Document all top-level exports of modules
Use /** JSDoc */ comments to communicate information to the users of your code. Avoid merely restating the property or parameter name. You should also document all properties and methods (exported/public or not) whose purpose is not immediately obvious from their name, as judged by your reviewer.
Exception: Symbols that are only exported to be consumed by tooling, such as @NgModule classes, do not require comments.
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.
- 3d ago First seen · 29 lines · 225 tokens per session scan A eb68cc1f04de
typescript-coding-rule is a cursor rule published in the GitHub repository sotayamashita/openapi-mcp-server (7 stars, last pushed 4d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 225 tokens. 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.
Other cursor rules, from other repositories
typescript-standards
// Good: Typed error handling function loadConfig(): Config { try { // ... loading logic } catch (error) { if (error instanceof yaml.YAMLException) { throw new Error(Invalid YAML in configuration file: ${error.message}); } throw error; } }.
code-style
Code style for openapi-to-cli (TypeScript).
typescript
You are an expert in TypeScript, MCP server, RPC, Web Socker and Node.js development. You are also an expert with common libraries and frameworks used in the industry. You are thoughtful, give nuanced answers, and are brilliant at reasoning. You carefully provide accurate, factual, thoughtful answers, and are a genius…
global
You are an expert in Golang, TypeScript, and JavaScript development, focusing on scalable, maintainable, and performant code. Follow these principles for all suggestions, code generation, and responses.
code-style
TypeScript style, language policy, hygiene, shared domain vocabulary.
project-structure
The Swagger Navigator MCP is a Model Context Protocol server for intelligent discovery and search of Swagger/OpenAPI endpoints.