Borrowing it
Nothing to install: this file belongs to xiaomaimuchanyiyiba/agent-handoff. 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/xiaomaimuchanyiyiba/agent-handoff/main/AGENTS.mdgit clone --depth 1 https://github.com/xiaomaimuchanyiyiba/agent-handoffWrote 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/xiaomaimuchanyiyiba/agent-handoff/agents-md)<a href="https://agentmods.dev/instructions/xiaomaimuchanyiyiba/agent-handoff/agents-md"><img src="https://agentmods.dev/badge/instructions/xiaomaimuchanyiyiba/agent-handoff/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/xiaomaimuchanyiyiba/agent-handoff/agents-md"><img src="https://agentmods.dev/badge/instructions/xiaomaimuchanyiyiba/agent-handoff/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 | $0.00234 | $0.00234 |
| Opus 5.5 | $0.00094 | $0.00094 |
| Sonnet 5.5 | $0.00047 | $0.00047 |
| Haiku 4.5 | $0.00023 | $0.00023 |
Grade C, and why
agent-handoff AGENTS.md scanned grade C 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 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.
Hidden instructionshighPrompt injection
Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.
<!-- Instructions for AI agents: when working on this project, always refer to this AGENTS.md --> What it actually says
Project Context
Purpose
This project provides a skill for AI coding agents (Claude Code, OpenCode, Codex, Cursor) to facilitate seamless project handovers.
Structure
agent-handoff/
├── SKILL.md # Universal skill for Claude Code / OpenCode / Codex
├── AGENTS.md # This file — agent instructions
├── cursor/rules/
│ └── handoff.mdc # Cursor-specific rule version
├── README.md # Documentation (English)
├── README_CN.md # Documentation (Chinese)
└── LICENSE
Conventions
- The skill uses
.handoff/directory with timestamped files (YYYY-MM-DD.md) for handover artifacts HANDOFF.mdis a symlink pointing to the latest handoff entry.handoff/is gitignored by default- All platform-specific instructions go in README.md, not in SKILL.md
- Keep it language-agnostic — no framework-specific examples
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 · 26 lines · 234 tokens per session scan C 724b54f1ea99
agent-handoff AGENTS.md is an instructions file published in the GitHub repository xiaomaimuchanyiyiba/agent-handoff (2 stars, last pushed 6mo ago), licensed MIT. It adds 234 tokens to every session, about $0.0009 per session on Opus 5.5. A static security scan graded it C with 1 finding (hidden instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
agent-handoff AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| agent-handoff AGENTS.mdxiaomaimuchanyiyiba/agent-handoff | Instructions file | 2 | 6mo ago | MIT | C | 234 | 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 | 275k | 3d ago | MIT | A | 4,313 | Codex, OpenCode |