What is 402index CLAUDE.md?

A project instruction file describing the structure, technology, commands, and coding conventions of the 402index repository.

Use it when changing the Express server, SQLite database, scheduled jobs, API and web routes, data aggregators, health checks, or related project code.

It gives coding agents and developers shared project context so they can work in the expected files and follow the repository's conventions.

How ryanthegentry/402index configures Claude Code

Reuse

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.

Copy the file

curl -O https://raw.githubusercontent.com/ryanthegentry/402index/master/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/ryanthegentry/402index

Made for: Claude Code.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/ryanthegentry/402index/claude-md/github.svg)](https://agentmods.dev/instructions/ryanthegentry/402index/claude-md)

Your own site

<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.

Your own site · 80×15

<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>

Per session 1,716 This file is loaded in full into every session.

When invoked 1,716 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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 5.5	$0.00686	$0.00686
Sonnet 5.5	$0.00343	$0.00343
Haiku 4.5	$0.00172	$0.00172

Measured 2mo ago against content hash 236b80a655d0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

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 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.

CLAUDE.md · 129 lines

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

Read the full file on GitHub · 129 lines

Changes

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 · 129 lines · 1,716 tokens per session scan A 236b80a655d0

Subscribe to this mod's changes

402index CLAUDE.md is an instructions file published in the GitHub repository ryanthegentry/402index (1 stars, last pushed 6d ago), licensed MIT. It adds 1,716 tokens to every session, about $0.0069 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.

Building agents

402index CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
402index CLAUDE.mdryanthegentry/402index	Instructions file	1	6d ago	MIT	A	1,716	Claude Code
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vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
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402index: Instructions file for Claude Code