Borrowing it
Nothing to install: this file belongs to aself101/mcp-secure-server. 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/aself101/mcp-secure-server/main/AGENTS.mdgit clone --depth 1 https://github.com/aself101/mcp-secure-serverWrote 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/aself101/mcp-secure-server/agents-md)<a href="https://agentmods.dev/instructions/aself101/mcp-secure-server/agents-md"><img src="https://agentmods.dev/badge/instructions/aself101/mcp-secure-server/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/aself101/mcp-secure-server/agents-md"><img src="https://agentmods.dev/badge/instructions/aself101/mcp-secure-server/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 | $0.00844 | $0.00844 |
| Opus 5.5 | $0.00338 | $0.00338 |
| Sonnet 5.5 | $0.00169 | $0.00169 |
| Haiku 4.5 | $0.00084 | $0.00084 |
Grade A, and why
mcp-secure-server 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 14d 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.
How it starts
The opening of the file, as written. The whole thing — 30 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Repository Guidelines
Project Structure & Module Organization
Source lives in src/, where index.ts re-exports the secure server, security/ contains the layered middleware and transports, and types/ stores shared definitions. Tests mirror this layout under test/unit and test/integration (shared fixtures in test/helpers, setup in test/setup; type-level guards in test/types, run by npm run check:types). Reference docs are README.md, SECURITY.md and CHANGELOG.md at the root, examples in cookbook/, and builds in dist/ (never edit generated files).
Build, Test, and Development Commands
npm run build– runstscand refreshesdist/.npm test– executes the entire Vitest suite; required before any PR.npm run test:unit|test:integration– scope runs to the feature you are touching. (test:performancepoints attest/performance, which does not exist.)npm run test:watch/npm run test:coverage– watch locally and regenerate the ≥86% coverage report before releases.npm run check:types– compiles the type-level guards intest/typesagainst the built declarations (runnpm run buildfirst).npm run test:cookbook– typechecks and tests every cookbook example (one workspace;cd cookbook && npm installonce). Live-API tests run only withCOOKBOOK_LIVE=1. Part ofprepublishOnly, so it gates releases.npm run minimal-server– bootscookbook/minimal-server/minimal-test-server.tsfor manual probing.npm run lint– enforces the shared ESLint configuration acrosssrc/.
Coding Style & Naming Conventions
Write TypeScript (ES modules, Node ≥18) with 2-space indentation and relative imports. Classes/interfaces are PascalCase, functions/variables camelCase, constants UPPER_SNAKE_CASE, and filenames should state the layer they implement (layer3-behavior.ts, secure-transport.ts). Keep modules ≈300 LOC per the architectural principles in CLAUDE.md, reuse utilities, and rely on npm run lint to enforce ESLint + @typescript-eslint.
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.
- 14d ago Changed · +2 lines · +91 tokens per session 8f67d80eba9d
- 1mo ago Changed · +56 tokens per session d6b42153adb1
- 1mo ago First seen · 28 lines · 697 tokens per session scan A 322c60426ad0
mcp-secure-server AGENTS.md is an instructions file published in the GitHub repository aself101/mcp-secure-server (2 stars, last pushed 2d ago), licensed MIT. It adds 844 tokens to every session, about $0.0034 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.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
vscode model-prompts.instructions.md
Model-specific prompt authoring and registry guidelines.