Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add MSApps-Mobile/claude-plugins --skill whatsapp-messagesgit clone --depth 1 https://github.com/MSApps-Mobile/claude-pluginsWrote 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/skills/msapps-mobile/claude-plugins/whatsapp-messages)<a href="https://agentmods.dev/skills/msapps-mobile/claude-plugins/whatsapp-messages"><img src="https://agentmods.dev/badge/skills/msapps-mobile/claude-plugins/whatsapp-messages/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/skills/msapps-mobile/claude-plugins/whatsapp-messages"><img src="https://agentmods.dev/badge/skills/msapps-mobile/claude-plugins/whatsapp-messages.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 | $0.00227 | $0.01279 |
| Opus 5.5 | $0.00091 | $0.00512 |
| Sonnet 5.5 | $0.00045 | $0.00256 |
| Haiku 4.5 | $0.00023 | $0.00128 |
Grade A, and why
whatsapp-messages 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 1mo 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.
curl -s -X POST http://localhost:8080/api/send \ How it starts
The opening of the file, as written. The whole thing — 111 lines — stays where its author put it; the contents beside it link to each section on GitHub.
WhatsApp Messages — Search & Read
ROUTING RULE: NEVER open WhatsApp in Chrome or any browser. ALWAYS use the MCP tools below. Chrome is a fallback ONLY if MCP tools explicitly error out.
Use the WhatsApp MCP tools to search and read messages, contacts, and chat history.
Available Tools
The following MCP tools are available (prefixed with the WhatsApp MCP server name):
Contacts:
search_contacts(query)— search contacts by name or phone number
Messages:
list_messages(after, before, sender_phone_number, chat_jid, query, limit, page, include_context, context_before, context_after)— search messages with filtersget_message_context(message_id, before, after)— get surrounding messages for context
Chats:
list_chats(query, limit, page, include_last_message, sort_by)— list chats, optionally filteredget_chat(chat_jid, include_last_message)— get chat metadata by JIDget_direct_chat_by_contact(sender_phone_number)— find a direct chat by phone numberget_contact_chats(jid, limit, page)— all chats involving a contactget_last_interaction(jid)— most recent message with a contact
Media:
download_media(message_id, chat_jid)— download media attachment from a message
Workflow
- Identify the target — if the user mentions a person's name, first use
search_contactsto find their JID or phone number. - Find the chat — use
list_chatsorget_direct_chat_by_contactto locate the relevant chat. - Search messages — use
list_messageswith appropriate filters:queryfor keyword searchafter/beforefor date ranges (ISO-8601 format)chat_jidto scope to a specific chatsender_phone_numberto filter by sender- Use
include_context: trueto see surrounding messages for better understanding
- Get context — if a message needs more context, use
get_message_contextwith the message ID. - Download media — if the user asks about images, files, or voice messages, use
download_media.
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.
- 1mo ago First seen · 111 lines · 227 tokens per session scan A 97d663d77c6d
whatsapp-messages is a skill published in the GitHub repository MSApps-Mobile/claude-plugins (9 stars, last pushed today), licensed MIT. It adds 227 tokens to every session and 1,279 once invoked, about $0.0009 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 2026-09-13.
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