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/wshobson/agents/agents-mdgit clone --depth 1 https://github.com/wshobson/agentsWhat 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 | $0.01462 | $0.01462 |
| Opus 5 | $0.00731 | $0.00731 |
| Sonnet 5 | $0.00292 | $0.00292 |
| Haiku 4.5 | $0.00146 | $0.00146 |
Grade A, and why
agents 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 — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.
claude-agents — multi-harness agentic plugin marketplace
Production-ready agentic-workflow building blocks: 93 plugins (91 local + 2 external), 202 agents, 181 skills, 105 commands. Native source-of-truth for Claude Code; also consumed by OpenAI Codex CLI, Cursor, OpenCode, and the Google Antigravity CLI (agy) from a single Markdown source.
This file is the canonical context file. Codex / Cursor / OpenCode / Antigravity CLI read it directly. Claude Code reads it via CLAUDE.md, a symlink to this file.
Read this file like a table of contents. Detail lives in
docs/. Authoring conventions live indocs/authoring.md. Per-harness setup and capability deltas live indocs/harnesses.md. This file should never grow beyond ~150 lines (per OpenAI's harness-engineering practice).
Map
- ARCHITECTURE.md — top-level architectural overview (adapter framework, source-of-truth invariant, capability matrix summary)
- docs/architecture.md — detailed design principles
- docs/plugins.md — full plugin catalog (93 plugins by category)
- docs/agents.md — agent reference (202 agents, model tiers)
- docs/agent-skills.md — skill reference (progressive disclosure model)
- docs/usage.md — commands, workflows, examples
- docs/authoring.md — portable-content style guide (read before adding plugins)
- docs/harnesses.md — per-harness capability matrix
- docs/plugin-eval.md — three-layer quality evaluation framework
- docs/round-trip-results.md — real-CLI verification recipes
- CONTRIBUTING.md — how to contribute
Working in this repo
- Python tooling: uv (package manager), ruff (lint/format), ty (type check). Do not use pip / mypy / black.
- Plugins live under
plugins/<name>/with auto-discovery — seedocs/authoring.mdfor frontmatter shapes. - Plugin names: lowercase, hyphen-separated. Never use
__(it's the adapter namespace separator). - Never commit secrets. Never run destructive git (force-push,
reset --hard, branch -D) without explicit ask.
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 · 75 lines · 1,462 tokens per session scan A e2e070268546
agents AGENTS.md is an instructions file published in the GitHub repository wshobson/agents (39,318 stars, last pushed 2d ago), licensed MIT. It adds 1,462 tokens to every session, about $0.0073 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 2026-08-30.
Other instructions, from other repositories
hindsight CLAUDE.md
Instructions for vectorize-io/hindsight, covering claude.md, project overview, development commands, local development (api + ui) and start both api server and control plane ui.
codedb AGENTS.md
AGENTS.md instructions for justrach/codedb, covering codedb agent guidelines, what codedb is (and isn't), review guidelines, pre-merge verification and security-sensitive areas.
claude-code-settings copilot-instructions.md
Instructions for feiskyer/claude-code-settings, covering claude.md, environment setup, required dependencies, configuration and skills.
debroid AGENTS.md
Instructions for PatilShreyas/debroid, covering ai agent contributor guide 🤖, 🎯 intention & motivation, 🏗️ architecture & layers, 1. the core layer (jdi & adb orchestration) and 2. the cli layer (daemon & client).
free-ai-gateway AGENTS.md
Instructions for zaber-dev/free-ai-gateway, covering 🤖 free-ai gateway - agentic development guidelines, 🏛️ monorepo architecture & package boundaries, 🛑 strict architectural rules for agents, 💻 essential developer commands and build all packages across monorepo.
aiworkspace AGENTS.md
Instructions for a-tokyo/aiworkspace, covering ai workspace, structure, key commands, conventions and code quality.