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/openhands/extensions/agents-mdgit clone --depth 1 https://github.com/OpenHands/extensionsWhat 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 | $0.03961 | $0.03961 |
| Opus 5 | $0.01980 | $0.01980 |
| Sonnet 5 | $0.00792 | $0.00792 |
| Haiku 4.5 | $0.00396 | $0.00396 |
Grade A, and why
extensions AGENTS.md scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- `skills/bitbucket` should not tell agents to rewrite remotes proactively. In OpenHands, `BITBUCKET_TOKEN` is commonly kept in unencoded `user:token` form for API calls like `curl --user "$BITBUCKET_TOKEN" ...`; only sp How it starts
The opening of the file, as written. The whole thing — 151 lines — stays where its author put it; the contents beside it link to each section on GitHub.
OpenHands Extensions — Agent Notes
This repository (OpenHands/extensions) is the public extensions registry for OpenHands.
It contains shareable skills and plugins that can be loaded by OpenHands (CLI/GUI/Cloud) and by client code using the Software Agent SDK.
Cross-Repository Boundaries
This repository owns the public registry of reusable OpenHands skills, plugins, automations, and integrations. These extensions are consumed by OpenHands applications and SDK-based clients.
Related repositories have distinct responsibilities:
OpenHands/software-agent-sdkowns the Python SDK, Agent Server, agent/tool behavior, conversations, workspaces, events, and canonical API.OpenHands/typescript-clientowns the browser-compatible typed Agent Server client.OpenHands/OpenHandsowns Agent Canvas UI and local-stack orchestration.OpenHands/automationowns scheduling, webhooks, run history, dispatch, and sandbox lifecycle orchestration.
Put reusable skills, plugins, automations, and integrations here; put backend execution behavior in the SDK, typed API access in typescript-client, application UI in Agent Canvas, and scheduling/dispatch lifecycle code in automation. If a PR is opened in the wrong repository, explicitly recommend closing and moving it to the owning repository. PRs must follow this repository's applicable contribution and code-review guidance.
What this repo contains
-
skills/— a catalog of skills, one directory per skill.skills/<skill-name>/SKILL.md— the skill definition (AgentSkills-style progressive disclosure)skills/<skill-name>/README.md— optional extra docs/examples for humans
-
plugins/— a catalog of plugins with executable code components.plugins/<plugin-name>/SKILL.md— the plugin definitionplugins/<plugin-name>/hooks/— lifecycle hooks (optional)plugins/<plugin-name>/scripts/— utility scripts (optional)
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 · 151 lines · 3,961 tokens per session scan A 8ea58c4a17fb
extensions AGENTS.md is an instructions file published in the GitHub repository OpenHands/extensions (137 stars, last pushed 4d ago), licensed MIT. It adds 3,961 tokens to every session, about $0.0198 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other instructions, from other repositories
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.
buildNext
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
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, applying the notice (cutover) and fallback chain (never fail the build).
spec-kit 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.
langchain 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.