Borrowing it
Nothing to install: this file belongs to cyijun/agent-smith. 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/cyijun/agent-smith/main/CLAUDE.mdgit clone --depth 1 https://github.com/cyijun/agent-smithWrote 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/cyijun/agent-smith/claude-md)<a href="https://agentmods.dev/instructions/cyijun/agent-smith/claude-md"><img src="https://agentmods.dev/badge/instructions/cyijun/agent-smith/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/cyijun/agent-smith/claude-md"><img src="https://agentmods.dev/badge/instructions/cyijun/agent-smith/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 | $0.01208 | $0.01208 |
| Opus 5.5 | $0.00483 | $0.00483 |
| Sonnet 5.5 | $0.00242 | $0.00242 |
| Haiku 4.5 | $0.00121 | $0.00121 |
Grade A, and why
agent-smith 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 1mo 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 — 106 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Project Overview
Agent Smith is a Claude Code skill that implements a recursive self-similar multi-agent system. It enables conflict-free parallel task decomposition and execution through a strict directory isolation protocol.
This is a documentation-only project. There are no build scripts, test suites, package managers, or compiled artifacts. The entire "product" is a set of Markdown files that define the skill behavior, agent protocols, examples, and templates.
Project Structure
agent-smith/
├── SKILL.md # Claude Code skill entry point (trigger definitions, initialization logic)
├── smith.md # Core agent prompt template (Chinese) — defines Smith identity, protocol, constraints
├── examples/ # Usage examples
│ ├── market-research.md
│ └── code-refactor.md
├── references/ # Reference documentation
│ ├── concepts.md # Core concepts: Smith definition, directory isolation, recursive decomposition
│ ├── protocol.md # Conflict-free protocol: write isolation, parent-child rules, queue consumption
│ └── best-practices.md # Task decomposition guidelines, result aggregation tips
└── templates/
└── task.md.template # Task file template for inbox/ tasks
Root-level README.md and README_CN.md are user-facing documentation, not part of the skill runtime.
Development Workflow
Installing the Skill for Testing
After editing any skill file, reinstall it to Claude Code's skills directory:
cp -r agent-smith ~/.claude/skills/
Then test by invoking one of the trigger phrases (e.g., "create multi-agent system") in a Claude Code session.
What to Edit
agent-smith/SKILL.md— Skill metadata, trigger conditions, initialization steps, child-agent creation logic. This is what Claude Code reads when the skill is invoked.agent-smith/smith.md— The agent definition template copied to each Smith's directory. Contains the core protocol, recursion limits, write constraints, and result format. Placeholders{SMITH_ID},{PARENT_ID},{LEVEL}are replaced at creation time.agent-smith/references/— Deep-dive docs referenced bySKILL.md. Keep in sync if you change protocol rules.agent-smith/examples/— Scenario walkthroughs. Update if you add new features or change decomposition patterns.agent-smith/templates/task.md.template— Task file template used when creating inbox tasks.
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.
- 1mo ago First seen · 106 lines · 1,208 tokens per session scan A f90ca0d365d8
agent-smith CLAUDE.md is an instructions file published in the GitHub repository cyijun/agent-smith (26 stars, last pushed 6mo ago), licensed MIT. It adds 1,208 tokens to every session, about $0.0048 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.
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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.
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Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
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