Borrowing it
Nothing to install: this file belongs to DiUS/agent-toolkit. 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/DiUS/agent-toolkit/main/CLAUDE.mdgit clone --depth 1 https://github.com/DiUS/agent-toolkitWrote 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/dius/agent-toolkit/claude-md)<a href="https://agentmods.dev/instructions/dius/agent-toolkit/claude-md"><img src="https://agentmods.dev/badge/instructions/dius/agent-toolkit/claude-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/dius/agent-toolkit/claude-md"><img src="https://agentmods.dev/badge/instructions/dius/agent-toolkit/claude-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 | $0.00430 | $0.00430 |
| Opus 5.5 | $0.00172 | $0.00172 |
| Sonnet 5.5 | $0.00086 | $0.00086 |
| Haiku 4.5 | $0.00043 | $0.00043 |
Grade A, and why
agent-toolkit CLAUDE.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 2mo 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.
What it actually says
CLAUDE.md
Guidance for Claude Code when working on this repository. Everything in AGENTS.md applies, so start there for the repo map, principles, and how to add each component type. This file only adds what's specific to Claude Code.
@AGENTS.md
Claude Code specifics
This repo is also a Claude Code plugin (single bundled plugin, agent-toolkit), which is
the primary target.
- Plugin manifests live in
.claude-plugin/—plugin.json(registers./skills,./commands, and each bundled agent) andmarketplace.json(marketplacedius-agent-toolkit, pluginagent-toolkit, sourced from GitHubDiUS/agent-toolkit). Keep both valid JSON;scripts/validate.jschecks them. - Subagents in
agents/are Claude Code workers a skill can delegate to (for example, to keep the main context lean or to run an isolated pass). Each is registered in theagentsarray ofplugin.json. On non-Claude hosts they're absent, and the skill falls back to a generic sub-agent or inline work. Keep that fallback path intact when editing skill behaviour. - Commands in
commands/register as slash commands automatically via the plugin. They're a Claude Code convention; other agents fall back to reading the referenced skill directly. - Hooks are opt-in. Nothing under
hooks/is wired intoplugin.json. Don't make a hook a dependency of any skill, command or agent in this repo.
Testing changes locally
# load the plugin from this working tree
claude --plugin-dir /path/to/agent-toolkit
# preview skill discovery for the npx-skills channel
npx skills add . --list
Before committing
Run the verification gate (also enforced in CI):
node scripts/validate.js
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.
- 2mo ago First seen · 45 lines · 430 tokens per session scan A 8a38e26e4a2b
agent-toolkit CLAUDE.md is an instructions file published in the GitHub repository DiUS/agent-toolkit (2 stars, last pushed 21d ago), licensed MIT. It adds 430 tokens to every session, about $0.0017 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
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).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.