Borrowing it
Nothing to install: this file belongs to Aboudjem/sniff. 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/Aboudjem/sniff/main/AGENTS.mdgit clone --depth 1 https://github.com/Aboudjem/sniffWrote 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/aboudjem/sniff/agents-md)<a href="https://agentmods.dev/instructions/aboudjem/sniff/agents-md"><img src="https://agentmods.dev/badge/instructions/aboudjem/sniff/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/aboudjem/sniff/agents-md"><img src="https://agentmods.dev/badge/instructions/aboudjem/sniff/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 | $0.01901 | $0.01901 |
| Opus 5.5 | $0.00760 | $0.00760 |
| Sonnet 5.5 | $0.00380 | $0.00380 |
| Haiku 4.5 | $0.00190 | $0.00190 |
Grade A, and why
sniff 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 — 93 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md: sniff
Instructions for AI agents and coding assistants working in, or invoking, this repository. Plain Markdown, no required fields (per the AGENTS.md convention: the agent simply parses the text below). Human-facing docs live in README.md; this file holds the extra context an agent needs.
What this repo is
sniff is an autonomous QA scanner: point it at a running web app and it walks the app's real user flows in a real (headless) browser and reports what's actually broken, with proof. It is not a static linter. npm package sniff-qa (binaries sniff and sniff-qa); ships as both a CLI and an MCP server (Claude Code plugin); Apache-2.0; Node >= 22; no API key required.
How an agent should USE sniff
Prefer the MCP sniff tool over the CLI when running inside an agent host (Claude Code, Cursor, VS Code/Copilot, Codex, Gemini CLI, Windsurf, Continue.dev). There is one unified sniff tool; pass { mode, rootDir, baseUrl? }.
mode: "walk"(RECOMMENDED, for a running app): drives a real browser, walks the app's user flows, and returns real bugs with reproduction proof. PassrootDir(absolute project path) and, optionally,baseUrl(the running app's URL). IfbaseUrlis omitted, sniff auto-detects the local dev server. If no app is running, it degrades to a source scan and tells you so via anotefield (start the dev server or passbaseUrlto get runtime bugs). Useful options:maxPages(default 25),mobile(default true, the 375px responsive pass),all(default false, includeuncertainfindings).mode: "scan"(source-only, no browser): passrootDironly. Finds placeholder/TODO/console.log/dead links/etc. by reading source. Works offline; no browser needed.mode: "report": load the last results forrootDir(format: "json" | "summary").mode: "run" / "discover"are legacy: preferwalk.rundoes a source+browser audit;discoverdoes scenario-based E2E.
Handling the Playwright setup gate
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 · 93 lines · 1,901 tokens per session scan A d98a150a5902
sniff AGENTS.md is an instructions file published in the GitHub repository Aboudjem/sniff (4 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 1,901 tokens to every session, about $0.0076 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
qmax-mcp copilot-instructions.md
Copilot instructions for Quality-Max/qmax-mcp, covering qualitymax qa workflow and adjacent tools.
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).