Borrowing it
Nothing to install: this file belongs to JerryLookupU/klein-harness. 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/JerryLookupU/klein-harness/main/AGENTS.mdgit clone --depth 1 https://github.com/JerryLookupU/klein-harnessWrote 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/jerrylookupu/klein-harness/agents-md)<a href="https://agentmods.dev/instructions/jerrylookupu/klein-harness/agents-md"><img src="https://agentmods.dev/badge/instructions/jerrylookupu/klein-harness/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/jerrylookupu/klein-harness/agents-md"><img src="https://agentmods.dev/badge/instructions/jerrylookupu/klein-harness/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 | $0.00221 | $0.00221 |
| Opus 5.5 | $0.00088 | $0.00088 |
| Sonnet 5.5 | $0.00044 | $0.00044 |
| Haiku 4.5 | $0.00022 | $0.00022 |
Grade A, and why
klein-harness 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.
What it actually says
Testing Policy
- 测试默认使用真实数据、真实 API key、真实本地环境进行验证，并尽量按照上线环境的路径、依赖、配置和行为执行。
- 不要优先引入 fake 环境、mock 数据、print mode、伪造 session 或额外测试实体来替代真实链路，除非用户明确要求，或真实环境因外部条件不可用而被明确标记为
BLOCKED。 - 当仓库已经接近上线态时，优先直接验证实际结果，避免为了测试再增加一层虚拟适配、镜像实体或额外抽象。
- 如果某项测试只能通过 fake/mock 完成，必须先说明原因、记录与线上环境的差异、列出后续需要移除或对齐的项，再继续执行。
- 测试结论必须明确区分：
- 真实环境验证通过
- 仅 fake/mock 验证通过
- 因真实环境不可用而阻塞
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 · 11 lines · 221 tokens per session scan A 8b969e79fae6
klein-harness AGENTS.md is an instructions file published in the GitHub repository JerryLookupU/klein-harness (10 stars, last pushed 7mo ago), licensed MIT. It adds 221 tokens to every session, about $0.0009 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.
klein-harness AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| klein-harness AGENTS.mdJerryLookupU/klein-harness | Instructions file | 10 | 7mo ago | MIT | A | 221 | 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 | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | today | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,516 | GitHub Copilot |
| 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 | 2d ago | MIT | A | 4,313 | Codex, OpenCode |