Borrowing it
Nothing to install: this file belongs to FredShred7/whatsapp-mcp-server. 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/FredShred7/whatsapp-mcp-server/main/CLAUDE.mdgit clone --depth 1 https://github.com/FredShred7/whatsapp-mcp-serverWrote 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/fredshred7/whatsapp-mcp-server/claude-md)<a href="https://agentmods.dev/instructions/fredshred7/whatsapp-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/fredshred7/whatsapp-mcp-server/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/fredshred7/whatsapp-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/fredshred7/whatsapp-mcp-server/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 | $0.01103 | $0.01103 |
| Opus 5 | $0.00551 | $0.00551 |
| Sonnet 5 | $0.00221 | $0.00221 |
| Haiku 4.5 | $0.00110 | $0.00110 |
Grade A, and why
whatsapp-mcp-server 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 9d 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 — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
Guidance for Claude Code (and future AI sessions) working in this repository.
Project overview
whatsapp-mcp-server is a TypeScript Model Context Protocol
server that exposes the official Meta WhatsApp Cloud API to MCP clients (Claude
Desktop, Claude Code, etc.). It speaks MCP over the stdio transport and registers
tools for sending messages (text/image/video/audio/document/reaction), templates, media
upload/download, and business-profile management. An optional Express webhook server
(enabled by setting WEBHOOK_PORT) receives incoming messages and delivery statuses and
keeps an in-memory conversation store; incoming requests are verified against the
X-Hub-Signature-256 header when WHATSAPP_APP_SECRET is set. The package is ESM
("type": "module"), compiled with tsc to dist/, and ships a whatsapp-mcp-server
bin.
Layout
src/index.ts— entry point: loads env, builds config, optionally starts the webhook, wires SIGINT/SIGTERM graceful shutdown, starts the MCP server.src/server.ts— MCP server: aggregates all tools and handlestools/list+tools/call.src/whatsapp/client.ts— Axios-based Cloud API client with retry/backoff.src/whatsapp/webhook.ts— Express webhook server, signature verification, in-memory store.src/whatsapp/types.ts— shared types and theWhatsAppErrorclass.src/tools/*.ts— tool definitions;shared.tsholdsformatErrorandtoInputSchema(Zod → JSON Schema). Each tool'sinputSchemais derived from its Zod schema — keep that single source of truth.test/— Vitest unit tests (not shipped; excluded fromdist).
Commands
npm install # or: npm ci (uses package-lock.json; what CI runs)
npm run build # tsc -> dist/
npm run dev # tsx watch src/index.ts
npm run typecheck # tsc --noEmit
npm run lint # eslint src --ext .ts
npm test # vitest run
npm run test:watch # vitest (watch mode)
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.
- 9d ago First seen · 77 lines · 1,103 tokens per session scan A 599e803ed2f3
whatsapp-mcp-server CLAUDE.md is an instructions file published in the GitHub repository FredShred7/whatsapp-mcp-server (24 stars, last pushed 3mo ago), licensed MIT. It adds 1,103 tokens to every session, about $0.0055 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 2026-08-30.
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