Borrowing it
Nothing to install: this file belongs to tuo-lei/vibe-replay. 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/tuo-lei/vibe-replay/main/CLAUDE.mdgit clone --depth 1 https://github.com/tuo-lei/vibe-replayWrote 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/tuo-lei/vibe-replay/claude-md)<a href="https://agentmods.dev/instructions/tuo-lei/vibe-replay/claude-md"><img src="https://agentmods.dev/badge/instructions/tuo-lei/vibe-replay/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/tuo-lei/vibe-replay/claude-md"><img src="https://agentmods.dev/badge/instructions/tuo-lei/vibe-replay/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 | $0.00268 | $0.00268 |
| Opus 5 | $0.00134 | $0.00134 |
| Sonnet 5 | $0.00054 | $0.00054 |
| Haiku 4.5 | $0.00027 | $0.00027 |
Grade C, and why
vibe-replay CLAUDE.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 12d 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.
<!-- Shim, not a source of truth. Claude Code reads CLAUDE.md and does not read AGENTS.md, so this file imports it. Project knowledge belongs in AGENTS.md so that Codex, Cursor, Pi, and opencode see it too. Add something What it actually says
@AGENTS.md
Claude Code
- Editing a file triggers the
PostToolUsehook in.claude/settings.json, which runsoxlint --fixandoxfmton that file. Do not also runpnpm linton a file you just edited — it is already formatted. - Add new skills under
skills/<name>, then create discovery symlinks under.agents/skills/and.claude/skills/as described in Agent setup inAGENTS.md. Do not create the canonical skill in either discovery directory.
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.
- 12d ago First seen · 24 lines · 268 tokens per session scan C cea7caef019d
vibe-replay CLAUDE.md is an instructions file published in the GitHub repository tuo-lei/vibe-replay (37 stars, last pushed today), licensed MIT. It adds 268 tokens to every session, about $0.0013 per session on Opus 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 2026-08-30.
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