whatsapp-cdp-mcp: Skill for OpenCode

.opencode/skills/whatsapp-mcp-server/SKILL.md

whatsapp-mcp-server is a skill for OpenCode from moonslayers/whatsapp-cdp-mcp. It costs 88 tokens per session (9,694 once invoked), scanned A, original, no licence file.

A reference guide for the whatsapp-mcp project, which controls the WhatsApp desktop app through developer tools built into Chrome. MCP is a way for software tools to provide actions or information to an AI agent.

In plain words
What is it for?
It is for developing, debugging and maintaining whatsapp-mcp, and for checking its WhatsApp Web selectors and desktop-app connection methods.
Why use it?
It helps developers understand how the project interacts with WhatsApp, including the page elements it uses and how message sending is confirmed.

Skill for OpenCode

Written for OpenCode: installed under .opencode/.

This is moonslayers/whatsapp-cdp-mcp's own configuration. It tells OpenCode how to work on whatsapp-cdp-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything whatsapp-cdp-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to moonslayers/whatsapp-cdp-mcp. 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/moonslayers/whatsapp-cdp-mcp/main/.opencode/skills/whatsapp-mcp-server/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/moonslayers/whatsapp-cdp-mcp

Made for: OpenCode.

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.

agentmods badge for whatsapp-mcp-server

README.md
[![agentmods](https://agentmods.dev/badge/skills/moonslayers/whatsapp-cdp-mcp/whatsapp-mcp-server/github.svg)](https://agentmods.dev/skills/moonslayers/whatsapp-cdp-mcp/whatsapp-mcp-server)
Your own site
<a href="https://agentmods.dev/skills/moonslayers/whatsapp-cdp-mcp/whatsapp-mcp-server"><img src="https://agentmods.dev/badge/skills/moonslayers/whatsapp-cdp-mcp/whatsapp-mcp-server/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.

agentmods 80×15 button for whatsapp-mcp-server

Your own site · 80×15
<a href="https://agentmods.dev/skills/moonslayers/whatsapp-cdp-mcp/whatsapp-mcp-server"><img src="https://agentmods.dev/badge/skills/moonslayers/whatsapp-cdp-mcp/whatsapp-mcp-server.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 88 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 9,694 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00088 $0.09694
Opus 5.5 $0.00035 $0.03878
Sonnet 5.5 $0.00018 $0.01939
Haiku 4.5 $0.00009 $0.00969

Measured 2mo ago against content hash 39a712032794, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

whatsapp-mcp-server scanned grade A with 1 finding 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- ✅ Fetch de media: `fetch(blobURL)` DENTRO de la página funciona sin CORS (el blob es same-origin, lo crea el renderer de WhatsApp). `Runtime.evaluate` devuelve base64 + mimeType + byteLength, y `downloadMedia` escribe
.opencode/skills/whatsapp-mcp-server/SKILL.md · 96 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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.

  1. 2mo ago First seen · 96 lines · 88 tokens per session scan A 39a712032794

Subscribe to this mod's changes

whatsapp-mcp-server is a skill published in the GitHub repository moonslayers/whatsapp-cdp-mcp (1 stars, last pushed 3mo ago), with no licence file. It adds 88 tokens to every session and 9,694 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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