Borrowing it
Nothing to install: this file belongs to ronniechong/healthchecks-io-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/ronniechong/healthchecks-io-mcp/main/AGENTS.mdgit clone --depth 1 https://github.com/ronniechong/healthchecks-io-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/ronniechong/healthchecks-io-mcp/agents-md)<a href="https://agentmods.dev/instructions/ronniechong/healthchecks-io-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/ronniechong/healthchecks-io-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/ronniechong/healthchecks-io-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/ronniechong/healthchecks-io-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 | $0.01519 | $0.01519 |
| Opus 5 | $0.00759 | $0.00759 |
| Sonnet 5 | $0.00304 | $0.00304 |
| Haiku 4.5 | $0.00152 | $0.00152 |
Grade A, and why
healthchecks-io-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 11d 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 — 128 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
What this is
An MCP server exposing Healthchecks.io's
Management API as MCP tools, distributed as an installable local package
(npx @digitalronin/healthchecks-io-mcp) — a stdio-transport MCP server, not a hosted
service. Unofficial, unaffiliated with Healthchecks.io.
Stack
- TypeScript, strict mode, ESM (
NodeNextmodule resolution) @modelcontextprotocol/server/@modelcontextprotocol/client(official MCP SDK) — the only runtime dependency- Native
fetch(Node 18+) for HTTP — no HTTP client library node:testfor unit/integration tests — no external test framework- npm as the package manager
- Prettier (2-space indent, single quotes, no trailing commas) + EditorConfig for consistent formatting across editors
Structure
src/
index.ts entrypoint — reads env, wires everything, runs main()
smoke.test.ts subprocess-level test (spawns dist/index.js)
key-redaction.test.ts subprocess-level test (spawns dist/index.js)
config/ constants (base URL, timeouts)
lib/ API client, key-tier detection, error translation,
response types — shared, no MCP-specific code
server/ McpServer/client construction (server-factory.ts)
tools/ one file per MCP tool (5 v1 read tools, 5 v2
mutating tools), plus shared.ts for helpers used
by more than one tool (resolveUuid,
readOnlyBlockedResult, confirmRequiredResult,
checkInputFields), index.ts aggregates
registration
Commands
npm install # install dependencies
npm run build # compile TypeScript to dist/
npm run typecheck # type-check without emitting
npm test # build, then run tests (node:test)
npm run format # apply Prettier formatting
npm run format:check # check formatting without writing (CI uses this)
npm audit # dependency vulnerability check
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.
- 11d ago First seen · 128 lines · 1,519 tokens per session scan A 0c5a8d4dd715
healthchecks-io-mcp AGENTS.md is an instructions file published in the GitHub repository ronniechong/healthchecks-io-mcp (0 stars, last pushed 3d ago), licensed MIT. It adds 1,519 tokens to every session, about $0.0076 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.
Other instructions, from other repositories
vibe-coding-prompt-template backend.instructions.md
Instructions for KhazP/vibe-coding-prompt-template: Read AGENTS.md, agentdocs/techstack.md, and agentdocs/codepatterns.md.
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.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
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).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.
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.