Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/rafaelcg/agentoscope/agents-mdgit clone --depth 1 https://github.com/rafaelcg/agentoscopeWhat 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 | $0.00664 | $0.00664 |
| Opus 5 | $0.00332 | $0.00332 |
| Sonnet 5 | $0.00133 | $0.00133 |
| Haiku 4.5 | $0.00066 | $0.00066 |
Grade A, and why
agentoscope 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 2d 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 — 48 lines — stays where its author put it; the contents beside it link to each section on GitHub.
agentoscope — agent instructions
What this is
A zero-runtime-dependency CLI (npx agentoscope) that scans a repo for AI-agent
instruction files (AGENTS.md, CLAUDE.md, .cursor/rules, copilot-instructions, …)
and renders a self-contained visual dashboard in the browser.
Layout
src/providers.ts— registry of provider conventions. Adding support for a new tool is a single entry inPROVIDERS. Pattern syntax:*one segment,**any depth,deep: truematches the basename at any depth.src/scan-core.ts— pure scanning (frontmatter parsing, classification, symlink/duplicate detection). No Node APIs — shared with the CF worker.src/scanner.ts— filesystem walk on top of scan-core (symlink resolution).src/glob.ts— dependency-free glob matcher (*,**,?,{a,b}).src/report.ts— serializable report model + attach rules (always / subtree / globs / manual) powering--forand the viewer's context view.src/check.ts— rules linter (stale globs, oversized files, drift, mdc config).src/inject.ts— embeds the report JSON into the viewer HTML (XSS-safe).src/cli.ts— arg parsing, check subcommand, local server, browser open.src/worker.ts— Cloudflare Worker: serves site/, scans public GitHub repos at /r/:owner/:repo (GitHub API + raw fetches, edge-cached 30 min).src/viewer/— browser app (app.ts,styles.css,shell.html), bundled intodist/viewer.htmlwith the report embedded as JSON.build.mjs— esbuild bundles CLI (dist/cli.js), viewer HTML, and the worker (site/_worker.js+site/_viewer.htmltemplate, both gitignored).site/— landing page (static, deployed to Cloudflare Workers Static Assets viacd site && wrangler deploy;demo.htmlis a generated sample report).test/— vitest;viewer.test.tsruns under jsdom.
Commands
- Build:
npm run build - Test:
npm test - Typecheck:
npm run typecheck - All three must pass before publishing (
prepublishOnlyenforces it).
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.
- 2d ago First seen · 48 lines · 664 tokens per session scan A 3bf9948d0e24
agentoscope AGENTS.md is an instructions file published in the GitHub repository rafaelcg/agentoscope (2 stars, last pushed 25d ago), licensed MIT. It adds 664 tokens to every session, about $0.0033 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
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.
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.
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 oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
next.js AGENTS.md
Instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.