Borrowing it
Nothing to install: this file belongs to mayorandrew/openapi-dynamic-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/mayorandrew/openapi-dynamic-mcp/main/AGENTS.mdgit clone --depth 1 https://github.com/mayorandrew/openapi-dynamic-mcpWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/mayorandrew/openapi-dynamic-mcp/agents-md)<a href="https://agentmods.dev/instructions/mayorandrew/openapi-dynamic-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/mayorandrew/openapi-dynamic-mcp/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/mayorandrew/openapi-dynamic-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/mayorandrew/openapi-dynamic-mcp/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00405 | $0.00405 |
| Opus 5.5 | $0.00162 | $0.00162 |
| Sonnet 5.5 | $0.00081 | $0.00081 |
| Haiku 4.5 | $0.00040 | $0.00040 |
Grade A, and why
openapi-dynamic-mcp AGENTS.md 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 2mo 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
openapi-dynamic-mcp
Purpose
- This repository builds a Node.js 20+ TypeScript package that exposes OpenAPI-backed APIs through both an MCP stdio server and a matching CLI.
- Most changes should preserve parity between the MCP tools and the CLI commands.
Project Shape
src/cli.ts: CLI entrypoint and command wiring.src/mcp/: MCP server setup and tool registration.src/mcp/tools/: primary user-facing operations such as listing APIs, inspecting endpoints, and making requests.src/openapi/: spec loading, Swagger 2 to OpenAPI 3 conversion, and endpoint indexing.src/http/: request preparation and execution.src/auth/: auth resolution, OAuth flows, environment variable handling, and token storage.src/config/: YAML config loading and validation.src/output/: response shaping such as JSONPath field filtering.test/: Vitest coverage for config, auth, OpenAPI loading, tools, and request execution. Follow the more specificAGENTS.mdfiles insidetest/when working there.
Working Guidelines
- Prefer changing
src/and tests. Treatdist/,coverage/, andnode_modules/as generated or external. - Keep code aligned with the current stack: strict TypeScript, ESM modules, Node built-ins, and existing small-module organization.
- Match existing formatting and linting conventions: single quotes, trailing commas, and explicit types where they add clarity.
- If behavior changes in an MCP tool, check whether the corresponding CLI path or shared helper should change too.
- Favor deterministic tests with local fixtures and mocks over live network calls.
Validation
- Use
npm run buildfor TypeScript compilation. - Use
npm run lintfor static checks. - Use
npm testfor the full test suite, or run targeted Vitest files while iterating.
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.
- 2mo ago First seen · 33 lines · 405 tokens per session scan A 0ec3bc544f64
openapi-dynamic-mcp AGENTS.md is an instructions file published in the GitHub repository mayorandrew/openapi-dynamic-mcp (1 stars, last pushed 6mo ago), licensed MIT. It adds 405 tokens to every session, about $0.0016 per session on Opus 5.5. 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.
openapi-dynamic-mcp AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| openapi-dynamic-mcp AGENTS.mdmayorandrew/openapi-dynamic-mcp | Instructions file | 1 | 6mo ago | MIT | A | 405 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |