Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add cmg8431/claude-dejavu --skill dejavu-scangit clone --depth 1 https://github.com/cmg8431/claude-dejavuWrote 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/skills/cmg8431/claude-dejavu/dejavu-scan)<a href="https://agentmods.dev/skills/cmg8431/claude-dejavu/dejavu-scan"><img src="https://agentmods.dev/badge/skills/cmg8431/claude-dejavu/dejavu-scan/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/skills/cmg8431/claude-dejavu/dejavu-scan"><img src="https://agentmods.dev/badge/skills/cmg8431/claude-dejavu/dejavu-scan.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 | $0.00033 | $0.00312 |
| Opus 5 | $0.00016 | $0.00156 |
| Sonnet 5 | $0.00007 | $0.00062 |
| Haiku 4.5 | $0.00003 | $0.00031 |
Grade A, and why
dejavu-scan scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
claude-dejavu: Manual Scan
You are triggering a manual antipattern scan with claude-dejavu.
Steps
- Run the scan command:
claude-dejavu scan --path "$(pwd)"
-
Present the results to the user:
- How many sessions were analyzed
- New patterns detected (if any)
- Rules proposed or updated
- Any changes applied to CLAUDE.md
-
If new rules were proposed, show them and ask the user whether to approve:
Found 2 new patterns:
[proposed] "Always use pnpm, not npm, in this project."
confidence: 0.85 | evidence: 3 sessions
[proposed] "Run type-check before committing TypeScript changes."
confidence: 0.72 | evidence: 2 sessions
Approve these rules? [y/n/edit]
- If no new patterns were found, reassure the user:
No new antipatterns detected. Your current rules look good.
Important
- Always show what the scan found, even if it found nothing
- Let the user decide whether to approve proposed rules
- If the scan fails, show the error and suggest checking that claude-dejavu is installed correctly
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 · 49 lines · 33 tokens per session scan A 347a120bf4be
dejavu-scan is a skill published in the GitHub repository cmg8431/claude-dejavu (2 stars, last pushed 3mo ago), licensed MIT. It adds 33 tokens to every session and 312 once invoked, about $0.0002 per session on Opus 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.
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