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whatsapp-coexistence-skill

v1.0.0

Published

Skill for your agent — reference guide for integrating WhatsApp Business messaging into any application through a third-party BSP (Coexistence-style API). Provider-, database-, and framework-agnostic.

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Links

Maintainers

sebah40sebah40

Keywords

agent-skillskillwhatsappwhatsapp-businessbspcoexistencemessaging

Readme

whatsapp-coexistence-skill

A skill for your agent — reference guide for integrating WhatsApp Business messaging into any application through a third-party BSP (Business Solution Provider) that offers a Coexistence-style API. Coexistence is the official Meta partner channel where vetted BSPs hold the WABA on your behalf, as an alternative to provisioning your own via Embedded Signup. Provider-, database-, and framework-agnostic.

Author: Sebastián Haoys License: MIT

Disclaimer. Not affiliated with, endorsed by, or sponsored by WhatsApp LLC or Meta Platforms, Inc. WhatsApp is a trademark of WhatsApp LLC. This is an independent reference guide and ships pattern-level guidance only — bring your own framework, ORM, and auth.

Install

# Detect every supported agent folder in ~/ and copy the skill into each
npx whatsapp-coexistence-skill

# Same, but commit-friendly per-repo install (./.<agent>/skills/)
npx whatsapp-coexistence-skill --project

# Restrict to one agent; creates the folder if it doesn't exist
npx whatsapp-coexistence-skill --agent claude-code

# Skip the confirm prompt
npx whatsapp-coexistence-skill --yes

Supported agent ids (mirrors the autoskills / skills ecosystem map): claude-code, cline, junie, codebuddy, continue, kiro-cli. If none of those folders exist, the installer falls back to .claude/skills/ (Claude Code is the canonical home of this skill format).

What's inside the skill

SKILL.md covers, BSP-agnostic and DB-engine-agnostic:

  • Architecture: provider column on phones/conversations/messages, dedup by external id, source-timestamp invariant
  • Webhook ingest: HMAC signature verification on raw bytes, always-200 response, raw-log-then-process pattern
  • Outbound send: provider-agnostic adapter interface (text / media / template / templates list / mark-as-read / media download)
  • Media: on-disk layout, signed short-lived public URLs for BSP fetch, RFC-5987 filename headers, 60-day retention cleanup
  • 24-hour service window: state machine, server-side enforcement, composer UX, template selector flow
  • Phone matching: locale-aware key derivation + fallback for sloppy CRM data
  • CRM linking: cached pointer + manual many-to-many, dynamic resolution at read time
  • Chat UI: two-pane layout, polling without thrash, scroll anchoring, status icons, channel filter, dual-mode search
  • File handling: pictures / PDFs / audio / video / voice notes, MIME tables, size caps, in-bubble rendering
  • Common mistakes checklist
  • Suggested file layout

references/multi-bsp-adapter.md covers running two BSPs in parallel during migration or per-number routing.

Use after install

Once installed, your agent loads the skill automatically. Invoke explicitly with /whatsapp-coexistence-bsp or just describe a WhatsApp-BSP task and your agent will pick it up.