add-whatsapp

add-whatsapp is a skill for Claude Code from nanocoai/nanoclaw. It costs 32 tokens per session (6,180 once invoked), scanned C, original, MIT.

A setup skill that connects NanoClaw directly to WhatsApp through Baileys, a library for connecting to WhatsApp Web, with QR-code or pairing-code login.

In plain words
What is it for?
Use it when NanoClaw should receive and send messages through a WhatsApp account.
Why use it?
It adds WhatsApp messaging without using the Chat SDK bridge, while prompting about the risks of using an everyday number.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: reads .claude/ paths.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is bash setup/lib/restart.sh.

Good fit Use it when NanoClaw should receive and send messages through a WhatsApp account.

Compare 6 skills from other repositories ↓
About the project

NanoClaw is an AI assistant that runs agents inside separate Linux containers, isolating their files and execution environments. People use it to connect agents to messaging services and run assistants with memory and scheduled jobs. The catalogue contains skills and instructions for extending or operating NanoClaw.

nanocoai/nanoclaw · 30,745 stars · on GitHub · nanoclaw.dev

Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/nanocoai/nanoclaw
agentmods
npx agentmods add skills/nanocoai/nanoclaw/add-whatsapp

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.

agentmods badge for add-whatsapp

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/nanocoai/nanoclaw/add-whatsapp"><img src="https://agentmods.dev/badge/skills/nanocoai/nanoclaw/add-whatsapp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,180 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 11 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Tool Misuse · line 252
    Tool calls are chained to bypass individual safety checks or escalate capabilities beyond what any single tool call would allow.
    Fix: Limit tool chaining depth and validate the output of each tool before passing it to the next. Require explicit user approval for multi-step chains.
  • high Tool Misuse · line 255
    Tool calls are chained to bypass individual safety checks or escalate capabilities beyond what any single tool call would allow.
    Fix: Limit tool chaining depth and validate the output of each tool before passing it to the next. Require explicit user approval for multi-step chains.
  • high Tool Misuse · line 458
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
  • high Tool Misuse · line 465
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
  • high Tool Misuse · line 478
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
  • high Tool Misuse · line 501
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
  • high Privilege Escalation · line 252
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 255
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 272
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • medium Agent Snooping · line 82
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
  • medium Rogue Agent · line 510
    Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.
    Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
How audits are shown
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00032 $0.06180
Opus 5 $0.00016 $0.03090
Sonnet 5 $0.00006 $0.01236
Haiku 4.5 $0.00003 $0.00618

Measured 13d ago against content hash 4cf4fe64fb25, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade C, and why

add-whatsapp scanned grade C 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 13d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/wa-qr-browser.ts), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

rm -rf store/auth/ && pnpm exec tsx setup/index.ts --step whatsapp-auth -- --method qr
.claude/skills/add-whatsapp/SKILL.md · 525 lines

How it starts

The opening of the file, as written. The whole thing — 525 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Add WhatsApp Channel

Adds WhatsApp support via the native Baileys adapter — a direct WhatsApp Web connection, no Chat SDK bridge. NanoClaw doesn't ship channels in trunk — this skill copies the WhatsApp adapter in from the channels branch.

The mechanical steps under Apply carry nc: directive fences: an agent reads the prose and applies them, and a parser can apply them deterministically from the same document. Every directive is idempotent, so the whole skill is safe to re-run; anything a parser can't apply falls back to the prose beside it.

Number safety check (required)

Complete this check before running any install or authentication command. If the user already said they want to use their shared, personal, main, existing, or everyday WhatsApp number, treat it as a shared number and show the warning immediately. Do not ask the number-type question again.

Otherwise, ask which WhatsApp number NanoClaw will use:

Which WhatsApp number will NanoClaw use? `dedicated` (recommended) — a separate number used only for NanoClaw (spare SIM, eSIM, or old phone). `shared` — your existing everyday / personal WhatsApp number.

If the answer is shared, show this warning — tell the user:

⚠️ Risk to your WhatsApp account

Connecting your shared or personal number could cause WhatsApp to temporarily suspend or permanently ban that number. You could lose access to the WhatsApp account, chats, and groups you rely on.

We strongly recommend using a separate, dedicated number for NanoClaw.

On your personal number, the agent lives only in your "You" / self-chat. Messages other people send you are ignored entirely — never read, never answered, never flagged for approval. Nobody else can talk to the agent.

If you want the agent reachable as its own contact, consider:
• Telegram — a bot takes ~2 minutes to set up
• a dedicated WhatsApp number — spare SIM, eSIM, or old phone
• /add-whatsapp-cloud — the official Meta Business API

Read the full file on GitHub · 525 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 13d ago First seen · 525 lines · 32 tokens per session scan C 4cf4fe64fb25

Subscribe to this mod's changes

add-whatsapp is a skill published in the GitHub repository nanocoai/nanoclaw (30,745 stars, last pushed today), licensed MIT. It adds 32 tokens to every session and 6,180 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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