Composio is a software toolkit that gives AI agents access to authenticated tools for interacting with apps and services. Developers use its SDKs, command-line interface, sessions, and sandbox to build agents that can carry out actions. The catalogue add-ons support workflows for using Composio with coding agents.
Borrowing it
Nothing to install: this file belongs to ComposioHQ/composio. 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/ComposioHQ/composio/next/AGENTS.mdgit clone --depth 1 https://github.com/ComposioHQ/composioWrote 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/composiohq/composio/agents-md)<a href="https://agentmods.dev/instructions/composiohq/composio/agents-md"><img src="https://agentmods.dev/badge/instructions/composiohq/composio/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/composiohq/composio/agents-md"><img src="https://agentmods.dev/badge/instructions/composiohq/composio/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 | $0.01464 | $0.01464 |
| Opus 5.5 | $0.00586 | $0.00586 |
| Sonnet 5.5 | $0.00293 | $0.00293 |
| Haiku 4.5 | $0.00146 | $0.00146 |
Grade A, and why
composio 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 7d 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 — 120 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Repository guidance for Codex, Claude Code, Cursor, pi.dev, and other AI coding agents.
Scope
This is the Composio SDK v3 monorepo. Most product code lives in ts/ and python/; docs live in docs/. Branch new work from next and target PRs at next unless the user says otherwise.
First Steps
- Read the nearest nested
AGENTS.mdbefore editing a subtree. - Preserve unrelated dirty work. Do not revert, delete, or reformat files outside the requested scope.
- Treat
.agents/skillsas the canonical local skill tree..claude/skillsis a compatibility symlink and must not be edited as a separate copy. - Do not edit generated SDK surfaces or vendor trees — see Generated And Vendored Paths.
- Verify every command you write against the current
package.json,Makefile,noxfile.py, or workflow file.
Contribution Policy
Follow the Contribution Policy in CONTRIBUTING.md. When helping an author prepare a PR:
- Composio team members and designated maintainers can open PRs directly. External contributors need an existing, open issue; if none is linked, tell the author to open one first. For large external changes, get maintainer agreement on the approach before implementation.
- @jkomyno is the designated PR reviewer. Involve the relevant owner when the change needs their expertise.
- Keep the change focused on meaningful improvements to the SDKs, CLI, or docs. Don't produce cosmetic, speculative, or drive-by edits.
- The author is responsible for every line. Keep diffs small enough to read, report the checks you actually ran, and tell the author to review the full diff before submitting.
- Follow the third-party links policy. Authoritative technical references needed to use or contribute to Composio are allowed; other third-party links and promotional content must fit the listed exceptions. Route partnership requests to https://composio.dev/contact.
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.
- 7d ago Changed · +3 lines · +56 tokens per session 33bf2acf85bd
- 1mo ago Changed · -1 lines · -33 tokens per session 836b8f54b4af
- 1mo ago Changed · +10 lines · +251 tokens per session a70009c69cd8
- 1mo ago Changed · +2 lines · +47 tokens per session 72aeeb943023
- 2mo ago First seen · 106 lines · 1,143 tokens per session scan A ed82ccaff5a3
composio AGENTS.md is an instructions file published in the GitHub repository ComposioHQ/composio (30,947 stars, last pushed yesterday), licensed MIT. It adds 1,464 tokens to every session, about $0.0059 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 2026-08-30.
composio AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| composio AGENTS.mdComposioHQ/composio | Instructions file | 31k | yesterday | MIT | A | 1,464 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,516 | GitHub Copilot |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | today | MIT | A | 4,680 | Codex, OpenCode |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |