Kungfu is a work-continuity system that lets the same task move between coding agents such as Codex, Claude, and OpenCode without losing its context or progress. It is for people coordinating different agents across attempts, reviews, failures, and recoveries, while the catalogue skills and instructions define agent workflows around that shared work.
Borrowing it
Nothing to install: this file belongs to kungfu-systems/kungfu. 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/kungfu-systems/kungfu/dev/v4/v4.0/AGENTS.mdgit clone --depth 1 https://github.com/kungfu-systems/kungfuWrote 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/kungfu-systems/kungfu/agents-md)<a href="https://agentmods.dev/instructions/kungfu-systems/kungfu/agents-md"><img src="https://agentmods.dev/badge/instructions/kungfu-systems/kungfu/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/kungfu-systems/kungfu/agents-md"><img src="https://agentmods.dev/badge/instructions/kungfu-systems/kungfu/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 | $0.01532 | $0.01532 |
| Opus 5.5 | $0.00613 | $0.00613 |
| Sonnet 5.5 | $0.00306 | $0.00306 |
| Haiku 4.5 | $0.00153 | $0.00153 |
Grade A, and why
kungfu 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 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.
How it starts
The opening of the file, as written. The whole thing — 121 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
This file orients coding agents (and people) working with this repository. It is a router, not a duplicate: it points to the authoritative documents rather than restating them.
Start from the person's objective
Restate the requested outcome in one sentence, then choose the single matching route. Do not inventory the repository or preload multiple routes "just in case."
| Objective | First route |
|---|---|
| Use or operate an installed Kungfu | Read the curated docs/README.md; run kungfu agent brief, then kungfu agent choose-mode --json. |
| Explain or evaluate Kungfu as a whole | Follow the Agent Architecture Analysis Protocol, then use the Evolution Map to enter current authority. |
| Change one bounded component, behavior, or document | Read CONTRIBUTING.md, then compile the verified task context below. |
| Promote or publish a release | Load the version and release design and publication closure before acting. |
Use the exhaustive docs/MAP.md only to ground a specific claim
or locate authority not resolved by the selected route. Expand context when a
verified route reports an omission or the task actually crosses a boundary—not
because the repository contains more concepts.
Rules that always apply
- Treat checked-in contracts, source, and current verification output as authority. README text, chat history, generated projections, and Agent output are routes or evidence, not authority by themselves.
- Keep the person's mental model task-sized. Do not export implementation vocabulary, subsystem count, or repository structure unless it changes the answer or the person asks for it.
- Use
./shifufor every development, build, test, package, and documentation task. Do not invoke pnpm, node, conan, or cmake directly. - Prefer the smallest change that preserves existing behavior and authority; read the affected source and tests before editing.
- Never include secrets, credentials, tokens, or private logs in code, commits,
issues, or pull requests. Follow
SECURITY.mdfor private vulnerability reporting. - Do not create official integrations that scrape private provider sessions,
bypass billing or quotas, or misrepresent usage attribution. See
PROVIDER_COMPLIANCE.md.
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 · 121 lines · 1,532 tokens per session scan A 0854af1b241c
kungfu AGENTS.md is an instructions file published in the GitHub repository kungfu-systems/kungfu (4,540 stars, last pushed 6d ago), licensed Apache-2.0. It adds 1,532 tokens to every session, about $0.0061 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.
kungfu AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| kungfu AGENTS.mdkungfu-systems/kungfu | Instructions file | 4.5k | 6d ago | Apache-2.0 | A | 1,532 | 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 |