Borrowing it
Nothing to install: this file belongs to FelixIsaac/whatsapp-mcp-extended. 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/FelixIsaac/whatsapp-mcp-extended/main/AGENTS.mdgit clone --depth 1 https://github.com/FelixIsaac/whatsapp-mcp-extendedWrote 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/felixisaac/whatsapp-mcp-extended/agents-md)<a href="https://agentmods.dev/instructions/felixisaac/whatsapp-mcp-extended/agents-md"><img src="https://agentmods.dev/badge/instructions/felixisaac/whatsapp-mcp-extended/agents-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/felixisaac/whatsapp-mcp-extended/agents-md"><img src="https://agentmods.dev/badge/instructions/felixisaac/whatsapp-mcp-extended/agents-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 | $0.00550 | $0.00550 |
| Opus 5 | $0.00275 | $0.00275 |
| Sonnet 5 | $0.00110 | $0.00110 |
| Haiku 4.5 | $0.00055 | $0.00055 |
Grade A, and why
whatsapp-mcp-extended AGENTS.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 10d 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 — 49 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md — Developer & AI Agent Guidelines
Guidelines and architecture overview for AI agents and human contributors working on whatsapp-mcp-extended.
🎯 Architecture Overview
whatsapp-mcp-extended consists of three core components:
whatsapp-bridge/(Go): High-performance Go bridge built onwhatsmeow. Handles WhatsApp Web socket connections, session persistence (store/whatsapp.db), media downloads (/api/download), and Webhook delivery.whatsapp-mcp-server/(Python): FastMCP server exposing 26+ MCP tools to AI clients (Claude Code, Cursor, OpenCode, Codex). Communicates with the Go bridge over local HTTP. Supports optional extras:uv sync --extra transcribe(On-device Apple Silicon voice-note transcription viamlx-whisper).uv sync --extra recall(Multilingual semantic search viasentence-transformers).
whatsapp-web-ui/(Next.js): Local web dashboard for QR code scanning, session status, and message inspection.
⚠️ Critical Rules for AI Agents
-
Security & Anti-Ban Safety:
- Never modify rates or payload sizes in a way that triggers WhatsApp anti-spam detection.
- Respect JID whitelist / allowlist safety gates when enabled.
-
Cross-Platform Compatibility:
- Ensure optional dependencies (
mlx-whisper,sentence-transformers) use lazy imports and graceful fallback handlers ({success: false, message: ...}) so non-Apple-Silicon systems maintain full functionality.
- Ensure optional dependencies (
-
Database & State Safety:
- SQLite operations on
messages.dbandstore/whatsapp.dbmust use WAL mode and proper transaction boundaries. - Never break LID-to-phone-JID lookup resolution (
<id>@lid-> phone JID).
- SQLite operations on
-
Automated Downstream Monitoring:
.github/workflows/downstream-check.ymlperiodically audits active satellite forks (simonseifert,bitterdev,domdomegg,Coriatel,laudite,kasperpeulen,slarrain) for new commits to ensure community fixes are merged upstream.
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.
- 10d ago First seen · 49 lines · 550 tokens per session scan A 5d9b1ae2a87b
whatsapp-mcp-extended AGENTS.md is an instructions file published in the GitHub repository FelixIsaac/whatsapp-mcp-extended (30 stars, last pushed 29d ago), licensed MIT. It adds 550 tokens to every session, about $0.0028 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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