Borrowing it
Nothing to install: this file belongs to agentlint/agentlint. 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/agentlint/agentlint/main/AGENTS.mdgit clone --depth 1 https://github.com/agentlint/agentlintWrote 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/agentlint/agentlint/agents-md)<a href="https://agentmods.dev/instructions/agentlint/agentlint/agents-md"><img src="https://agentmods.dev/badge/instructions/agentlint/agentlint/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/agentlint/agentlint/agents-md"><img src="https://agentmods.dev/badge/instructions/agentlint/agentlint/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 | $0.02439 | $0.02439 |
| Opus 5.5 | $0.00976 | $0.00976 |
| Sonnet 5.5 | $0.00488 | $0.00488 |
| Haiku 4.5 | $0.00244 | $0.00244 |
Grade A, and why
agentlint 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 1mo 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 — 164 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md — agentlint
Briefing for AI coding agents working in this repo. Concise and actionable. Source of truth that all other tool-specific files (CLAUDE.md, .cursor/rules, copilot-instructions.md) point at.
Project
agentlint is a TypeScript monorepo using pnpm workspaces. It ships an open-source CLI (packages/cli) that scans a repository against ~30 checks and produces a 0–100 agent-readiness score, plus a core package with pure types and score calculation.
Build, test, lint, typecheck
All commands run from the repo root. Package manager: pnpm (>=9).
pnpm install # install deps for all workspaces
pnpm run build # build everything
pnpm run test # run tests (vitest) across all workspaces
pnpm run lint # biome check
pnpm run typecheck # tsc --noEmit across the workspace
pnpm run agentlint . # run agentlint on this repo (must score 100)
pnpm run ci # full pipeline: build + typecheck + lint + test + agentlint
Always run pnpm run ci before considering work done. CI runs the same pipeline; if the score drops below 100, the build fails.
Architecture
packages/
core/ pure types, score-calc — no IO
src/types.ts Result, Rule, Report, ScanContext
src/score.ts buildReport, registerRuleCategory
cli/ CLI entrypoint, FS walker, reporters
src/index.ts bin entry — argv parsing + subcommand dispatch
src/api.ts programmatic `runScan` export (package `main`)
src/init/index.ts `agentlint init` subcommand (v2)
src/prompt-cmd/ `agentlint prompt` subcommand (consolidated fix prompt)
src/prompts/ predefined fix-prompt templates (registry) + composer
src/scan-context.ts cached FS reads + project meta detection
src/push/ push pipeline
client.ts POST /api/runs with project token
config.ts .agentlint.json loader (ADR-0020)
oidc.ts GitHub Actions OIDC token fetcher (ADR-0019)
project-lookup.ts GET /api/cli/projects (used by init)
token.ts AGENTLINT_TOKEN env resolution
pr-detect.ts PR context detection from CI env
repo-detect.ts git remote → owner/name
src/rules/ one file per category, six rules each
src/report/ terminal, html, json, markdown reporters
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.
- 1mo ago First seen · 164 lines · 2,439 tokens per session scan A bd14516cce90
agentlint AGENTS.md is an instructions file published in the GitHub repository agentlint/agentlint (3 stars, last pushed yesterday), licensed MIT. It adds 2,439 tokens to every session, about $0.0098 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.