Borrowing it
Nothing to install: this file belongs to ryanthegentry/402index. 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/ryanthegentry/402index/master/CLAUDE.mdgit clone --depth 1 https://github.com/ryanthegentry/402indexWrote 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/ryanthegentry/402index/claude-md)<a href="https://agentmods.dev/instructions/ryanthegentry/402index/claude-md"><img src="https://agentmods.dev/badge/instructions/ryanthegentry/402index/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/ryanthegentry/402index/claude-md"><img src="https://agentmods.dev/badge/instructions/ryanthegentry/402index/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 | $0.01716 | $0.01716 |
| Opus 5 | $0.00858 | $0.00858 |
| Sonnet 5 | $0.00343 | $0.00343 |
| Haiku 4.5 | $0.00172 | $0.00172 |
Grade A, and why
402index CLAUDE.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 8d 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.
How it starts
The opening of the file, as written. The whole thing — 129 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
Notes for coding agents (and humans) working in this repository.
Private per-developer overrides can live in CLAUDE.local.md (gitignored). This file is the committed, shared baseline.
Project Structure
402index/
├── src/
│ ├── server.js # Express app entry point
│ ├── db.js # SQLite setup + migrations
│ ├── scheduler.js # Background job scheduling
│ ├── listings.js # YAML listing loader + featured flags
│ ├── routes/
│ │ ├── api.js # /api/v1/services, /register, /webhooks, /opportunities, /admin
│ │ └── pages.js # HTML routes: /, /service/:id, /about, /demo, /feed.xml, /opportunities
│ ├── queries/
│ │ └── services.js # Shared query builder + column definitions
│ ├── aggregators/
│ │ ├── bazaar.js # x402 Bazaar polling + normalization
│ │ ├── satring.js # Satring L402 polling + normalization
│ │ └── l402apps.js # l402apps.com polling (HTML scrape, daily)
│ ├── health/
│ │ └── checker.js # Health check runner (configurable interval) + event emission
│ ├── middleware/ # Express middleware (L402, rate limiting, helmet)
│ ├── services/
│ │ ├── events.js # Central event dispatcher: emit() → webhooks + Nostr + email
│ │ ├── webhooks.js # Webhook CRUD + HMAC-SHA256 delivery
│ │ ├── nostr.js # Nostr NIP-99 (kind 30402) event publishing
│ │ ├── opportunities.js
│ │ ├── btc-price.js
│ │ ├── l402-provider.js
│ │ ├── l402-verify.js
│ │ ├── probe-live.js
│ │ ├── url-normalize.js
│ │ └── wellknown-discovery.js
│ └── views/ # HTML template literals (home, service, about, demo, feed, etc.)
├── scripts/ # Standalone ops (poll, healthcheck, backfills)
├── listings/ # YAML files for manually curated / exclusive listings
├── test/ # Tests (node:test)
├── data/ # SQLite DB file (gitignored)
├── docs/ # Feature specs + API docs
├── mcp-server/ # @402index/mcp-server (own package, published to npm)
├── CLAUDE.md # This file (public, committed)
├── CLAUDE.local.md # Private per-developer overrides (gitignored)
├── CONTRIBUTING.md
├── SECURITY.md
├── LICENSE
└── package.json
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.
- 8d ago First seen · 129 lines · 1,716 tokens per session scan A 236b80a655d0
402index CLAUDE.md is an instructions file published in the GitHub repository ryanthegentry/402index (0 stars, last pushed 1mo ago), licensed MIT. It adds 1,716 tokens to every session, about $0.0086 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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