Borrowing it
Nothing to install: this file belongs to rxdaozhang/product-reverse. 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/rxdaozhang/product-reverse/main/AGENTS.mdgit clone --depth 1 https://github.com/rxdaozhang/product-reverseWrote 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/rxdaozhang/product-reverse/agents-md)<a href="https://agentmods.dev/instructions/rxdaozhang/product-reverse/agents-md"><img src="https://agentmods.dev/badge/instructions/rxdaozhang/product-reverse/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/rxdaozhang/product-reverse/agents-md"><img src="https://agentmods.dev/badge/instructions/rxdaozhang/product-reverse/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 | $0.00296 | $0.00296 |
| Opus 5.5 | $0.00118 | $0.00118 |
| Sonnet 5.5 | $0.00059 | $0.00059 |
| Haiku 4.5 | $0.00030 | $0.00030 |
Grade A, and why
product-reverse 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
AGENTS.md
Guidance for AI coding agents working in this repository.
Repository Purpose
This repository publishes a reusable agent skill: product-reverse.
The skill helps reverse-engineer web products from a URL and produce structured outputs.
Canonical Skill Source
- Skill name:
product-reverse - Skill file:
skills/product-reverse/SKILL.md - Repository source id:
rxdaozhang/product-reverse
Repository Layout
.
├── skills/
│ └── product-reverse/
│ ├── SKILL.md
│ ├── references/
│ └── scripts/
├── .well-known/
│ └── skills/
│ └── index.json
└── scripts/
├── validate-skill.sh
└── smoke-install.sh
Quality Gates
Run both checks before committing:
bash scripts/validate-skill.sh
bash scripts/smoke-install.sh
Publishing Contract
Public install commands must stay valid:
npx skills add rxdaozhang/product-reverse
npx skills add rxdaozhang/product-reverse --skill product-reverse
When changing skill name/path, update all of:
skills/product-reverse/SKILL.md.well-known/skills/index.jsonREADME.md- validation scripts
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 · 57 lines · 296 tokens per session scan A e8a4a9c2d9ee
product-reverse AGENTS.md is an instructions file published in the GitHub repository rxdaozhang/product-reverse (2 stars, last pushed 8mo ago), licensed MIT. It adds 296 tokens to every session, about $0.0012 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.
product-reverse AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| product-reverse AGENTS.mdrxdaozhang/product-reverse | Instructions file | 2 | 8mo ago | MIT | A | 296 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | 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 | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |