feat(whatsapp): WhatsApp Business Cloud API adapter

agent/prompt_builder.py

@@ -489,6 +489,23 @@ def format_steer_marker(steer_text: str) -> str:
         "files arrive as downloadable documents. You can also include image "
         "URLs in markdown format ![alt](url) and they will be sent as photos."
     ),
+    "whatsapp_cloud": (
+        "You are on a text messaging communication platform, WhatsApp "
+        "(via Meta's official Business Cloud API). Standard markdown "
+        "(**bold**, ~~strike~~, # headers, [links](url)) is auto-converted "
+        "to WhatsApp's native syntax (*bold*, ~strike~, etc.) — feel free "
+        "to write in markdown. Tables are NOT supported — prefer bullet "
+        "lists or labeled key:value pairs. "
+        "You can send media files natively: include MEDIA:/absolute/path/to/file "
+        "in your response. Images (.jpg, .png) become photo attachments, "
+        "videos (.mp4) play inline, audio (.mp3, .ogg) sends as voice/audio "
+        "messages, other files arrive as documents. Image URLs in markdown "
+        "format ![alt](url) also work. "
+        "IMPORTANT: this platform has a 24-hour conversation window — if the "
+        "user hasn't messaged in 24h, free-form replies are refused by Meta "
+        "(error 131047). This rarely matters for live chat, but is worth "
+        "knowing if you're scheduling a delayed message."
+    ),
     "telegram": (
         "You are on a text messaging communication platform, Telegram. "
         "Standard markdown is automatically converted to Telegram format. "
@@ -1383,13 +1400,13 @@ def _status_line(feature) -> str:
 
     lines = [
         "# Nous Subscription",
-        "Nous subscription includes managed web tools (Firecrawl), image generation (FAL), OpenAI TTS, and browser automation (Browser Use) by default. Modal execution is optional.",
+        "Nous subscription includes managed web tools (Firecrawl), image generation (FAL), OpenAI TTS, OpenAI Whisper STT, and browser automation (Browser Use) by default. Modal execution is optional.",
         "Current capability status:",
     ]
     lines.extend(_status_line(feature) for feature in features.items())
     lines.extend(
         [
-            "When a Nous-managed feature is active, do not ask the user for Firecrawl, FAL, OpenAI TTS, or Browser-Use API keys.",
+            "When a Nous-managed feature is active, do not ask the user for Firecrawl, FAL, OpenAI TTS, OpenAI Whisper, or Browser-Use API keys.",
             "If the user is not subscribed and asks for a capability that Nous subscription would unlock or simplify, suggest Nous subscription as one option alongside direct setup or local alternatives.",
             "Do not mention subscription unless the user asks about it or it directly solves the current missing capability.",
             "Useful commands: hermes setup, hermes setup tools, hermes setup terminal, hermes status.",

cron/scheduler.py

@@ -139,6 +139,7 @@ def _resolve_cron_enabled_toolsets(job: dict, cfg: dict) -> list[str] | None:
     "bluebubbles": "BLUEBUBBLES_HOME_CHANNEL",
     "qqbot": "QQBOT_HOME_CHANNEL",
     "whatsapp": "WHATSAPP_HOME_CHANNEL",
+    "whatsapp_cloud": "WHATSAPP_CLOUD_HOME_CHANNEL",
 }
 
 # Legacy env var names kept for back-compat.  Each entry is the current

gateway/authz_mixin.py

@@ -142,6 +142,7 @@ def _is_user_authorized(self, source: SessionSource) -> bool:
             Platform.TELEGRAM: "TELEGRAM_ALLOWED_USERS",
             Platform.DISCORD: "DISCORD_ALLOWED_USERS",
             Platform.WHATSAPP: "WHATSAPP_ALLOWED_USERS",
+            Platform.WHATSAPP_CLOUD: "WHATSAPP_CLOUD_ALLOWED_USERS",
             Platform.SLACK: "SLACK_ALLOWED_USERS",
             Platform.SIGNAL: "SIGNAL_ALLOWED_USERS",
             Platform.EMAIL: "EMAIL_ALLOWED_USERS",
@@ -168,6 +169,7 @@ def _is_user_authorized(self, source: SessionSource) -> bool:
             Platform.TELEGRAM: "TELEGRAM_ALLOW_ALL_USERS",
             Platform.DISCORD: "DISCORD_ALLOW_ALL_USERS",
             Platform.WHATSAPP: "WHATSAPP_ALLOW_ALL_USERS",
+            Platform.WHATSAPP_CLOUD: "WHATSAPP_CLOUD_ALLOW_ALL_USERS",
             Platform.SLACK: "SLACK_ALLOW_ALL_USERS",
             Platform.SIGNAL: "SIGNAL_ALLOW_ALL_USERS",
             Platform.EMAIL: "EMAIL_ALLOW_ALL_USERS",
@@ -401,6 +403,7 @@ def _get_unauthorized_dm_behavior(self, platform: Optional[Platform]) -> str:
                 Platform.TELEGRAM: "TELEGRAM_ALLOWED_USERS",
                 Platform.DISCORD:  "DISCORD_ALLOWED_USERS",
                 Platform.WHATSAPP: "WHATSAPP_ALLOWED_USERS",
+                Platform.WHATSAPP_CLOUD: "WHATSAPP_CLOUD_ALLOWED_USERS",
                 Platform.SLACK:    "SLACK_ALLOWED_USERS",
                 Platform.SIGNAL:   "SIGNAL_ALLOWED_USERS",
                 Platform.EMAIL:    "EMAIL_ALLOWED_USERS",

gateway/config.py

@@ -145,6 +145,7 @@ class Platform(Enum):
     TELEGRAM = "telegram"
     DISCORD = "discord"
     WHATSAPP = "whatsapp"
+    WHATSAPP_CLOUD = "whatsapp_cloud"
     SLACK = "slack"
     SIGNAL = "signal"
     MATTERMOST = "mattermost"
@@ -462,6 +463,9 @@ def from_dict(cls, data: Dict[str, Any]) -> "StreamingConfig":
         cfg.extra.get("account_id") and (cfg.token or cfg.extra.get("token"))
     ),
     Platform.WHATSAPP: lambda cfg: True,  # bridge handles auth
+    Platform.WHATSAPP_CLOUD: lambda cfg: bool(
+        cfg.extra.get("phone_number_id") and cfg.extra.get("access_token")
+    ),
     Platform.SIGNAL: lambda cfg: bool(cfg.extra.get("http_url")),
     Platform.EMAIL: lambda cfg: bool(cfg.extra.get("address")),
     Platform.SMS: lambda cfg: bool(os.getenv("TWILIO_ACCOUNT_SID")),
@@ -1416,6 +1420,61 @@ def _enable_from_env(platform: Platform) -> PlatformConfig:
             thread_id=os.getenv("WHATSAPP_HOME_CHANNEL_THREAD_ID") or None,
         )
 
+    # WhatsApp Cloud API (official Business Platform via Meta).
+    # Distinct from the Baileys bridge: pure HTTP graph.facebook.com calls
+    # outbound, public webhook inbound. Both adapters can run in parallel
+    # against different phone numbers.
+    whatsapp_cloud_phone_id = os.getenv("WHATSAPP_CLOUD_PHONE_NUMBER_ID")
+    whatsapp_cloud_token = os.getenv("WHATSAPP_CLOUD_ACCESS_TOKEN")
+    if whatsapp_cloud_phone_id and whatsapp_cloud_token:
+        if Platform.WHATSAPP_CLOUD not in config.platforms:
+            config.platforms[Platform.WHATSAPP_CLOUD] = PlatformConfig()
+        config.platforms[Platform.WHATSAPP_CLOUD].enabled = True
+        config.platforms[Platform.WHATSAPP_CLOUD].extra.update({
+            "phone_number_id": whatsapp_cloud_phone_id,
+            "access_token": whatsapp_cloud_token,
+        })
+        # Optional: app_id / app_secret (signature verification)
+        wa_cloud_app_id = os.getenv("WHATSAPP_CLOUD_APP_ID")
+        if wa_cloud_app_id:
+            config.platforms[Platform.WHATSAPP_CLOUD].extra["app_id"] = wa_cloud_app_id
+        wa_cloud_app_secret = os.getenv("WHATSAPP_CLOUD_APP_SECRET")
+        if wa_cloud_app_secret:
+            config.platforms[Platform.WHATSAPP_CLOUD].extra["app_secret"] = wa_cloud_app_secret
+        # Optional: WABA id (analytics, future use)
+        wa_cloud_waba_id = os.getenv("WHATSAPP_CLOUD_WABA_ID")
+        if wa_cloud_waba_id:
+            config.platforms[Platform.WHATSAPP_CLOUD].extra["waba_id"] = wa_cloud_waba_id
+        # Webhook verify token — Meta hub.verify_token shared secret
+        wa_cloud_verify_token = os.getenv("WHATSAPP_CLOUD_VERIFY_TOKEN")
+        if wa_cloud_verify_token:
+            config.platforms[Platform.WHATSAPP_CLOUD].extra["verify_token"] = wa_cloud_verify_token
+        # Webhook server bind config (defaults baked into the adapter)
+        wa_cloud_host = os.getenv("WHATSAPP_CLOUD_WEBHOOK_HOST")
+        if wa_cloud_host:
+            config.platforms[Platform.WHATSAPP_CLOUD].extra["webhook_host"] = wa_cloud_host
+        wa_cloud_port = os.getenv("WHATSAPP_CLOUD_WEBHOOK_PORT")
+        if wa_cloud_port:
+            try:
+                config.platforms[Platform.WHATSAPP_CLOUD].extra["webhook_port"] = int(wa_cloud_port)
+            except ValueError:
+                pass
+        wa_cloud_path = os.getenv("WHATSAPP_CLOUD_WEBHOOK_PATH")
+        if wa_cloud_path:
+            config.platforms[Platform.WHATSAPP_CLOUD].extra["webhook_path"] = wa_cloud_path
+        # Graph API version override (rarely needed)
+        wa_cloud_api_version = os.getenv("WHATSAPP_CLOUD_API_VERSION")
+        if wa_cloud_api_version:
+            config.platforms[Platform.WHATSAPP_CLOUD].extra["api_version"] = wa_cloud_api_version
+    whatsapp_cloud_home = os.getenv("WHATSAPP_CLOUD_HOME_CHANNEL")
+    if whatsapp_cloud_home and Platform.WHATSAPP_CLOUD in config.platforms:
+        config.platforms[Platform.WHATSAPP_CLOUD].home_channel = HomeChannel(
+            platform=Platform.WHATSAPP_CLOUD,
+            chat_id=whatsapp_cloud_home,
+            name=os.getenv("WHATSAPP_CLOUD_HOME_CHANNEL_NAME", "Home"),
+            thread_id=os.getenv("WHATSAPP_CLOUD_HOME_CHANNEL_THREAD_ID") or None,
+        )
+
     # Slack
     slack_token = os.getenv("SLACK_BOT_TOKEN")
     if slack_token:

gateway/display_config.py

@@ -123,6 +123,12 @@
     # Tier 3 — no edit support, progress messages are permanent
     "signal":          _TIER_LOW,
     "whatsapp":        _TIER_MEDIUM,  # Baileys bridge supports /edit
+    # WhatsApp Cloud API: Meta added message editing in 2023 but the
+    # Hermes Cloud adapter doesn't implement edit_message yet, so we
+    # stay on TIER_LOW (tool_progress off) to avoid spamming each
+    # status update as a separate message. Promote to TIER_MEDIUM once
+    # Cloud's edit_message lands.
+    "whatsapp_cloud":  _TIER_LOW,
     "bluebubbles":     _TIER_LOW,
     "weixin":          _TIER_LOW,
     "wecom":           _TIER_LOW,

gateway/platforms/ADDING_A_PLATFORM.md

@@ -52,6 +52,22 @@ for the full pattern (Template Buttons postback at 45s, `RequestCache`
 state machine, `interrupt_session_activity` override for `/stop`
 orphans) and the developer-guide page for the prose walkthrough.
 
+**Sibling adapters that share behavior.** When a single platform has
+two transport modes the user picks between — unofficial vs official
+APIs, polling vs websocket, library A vs library B — the right
+structure is two adapters that share a behavior mixin. WhatsApp does
+this: `gateway/platforms/whatsapp.py` (Baileys bridge) and
+`gateway/platforms/whatsapp_cloud.py` (Meta Cloud API) both inherit
+from `WhatsAppBehaviorMixin` in `gateway/platforms/whatsapp_common.py`.
+The mixin owns gating, allow-lists, mention parsing, broadcast
+filters, and the WhatsApp-flavored markdown conversion — everything
+that's platform-protocol-agnostic. Each adapter owns its transport.
+Both register distinct `Platform.*` enum values so the gateway can run
+both simultaneously against different phone numbers. The mixin must
+come **first** in the bases list — `class WhatsAppAdapter(Mixin,
+BasePlatformAdapter)` — so the mixin's `format_message` overrides
+`BasePlatformAdapter`'s generic default.
+
 See `plugins/platforms/irc/`, `plugins/platforms/teams/`, and
 `plugins/platforms/google_chat/` for complete working examples, and
 `website/docs/developer-guide/adding-platform-adapters.md` for the full
@@ -94,6 +110,19 @@ The adapter is a subclass of `BasePlatformAdapter` from `gateway/platforms/base.
 | `send_animation(chat_id, path, caption)` | Send a GIF/animation |
 | `send_image_file(chat_id, path, caption)` | Send image from local file |
 
+### Interactive UX (recommended if your platform supports tappable buttons)
+
+If your platform supports interactive button/menu messages, implement these for a more polished agent experience. They all degrade gracefully to plain text when not overridden:
+
+| Method | Purpose |
+|--------|---------|
+| `send_clarify(chat_id, question, choices, clarify_id, session_key, ...)` | Render the `clarify` tool's multi-choice question as tappable buttons. Pair with inbound dispatch that routes button taps to `tools.clarify_gateway.resolve_gateway_clarify`. |
+| `send_exec_approval(chat_id, command, session_key, description, ...)` | Render dangerous-command approval as Approve/Deny buttons. Inbound dispatch routes to `tools.approval.resolve_gateway_approval`. |
+| `send_slash_confirm(chat_id, title, message, session_key, confirm_id, ...)` | Render slash-command confirmations (e.g. `/reload-mcp`) as Once/Always/Cancel buttons. Inbound dispatch routes to `tools.slash_confirm.resolve`. |
+| `send_model_picker(...)` | Interactive `/model` picker. Used by Telegram and Discord. |
+
+See `gateway/platforms/telegram.py`, `discord.py`, and `whatsapp_cloud.py` for reference implementations. The button-callback id convention (`cl:<id>:<idx>`, `appr:<id>:<choice>`, `sc:<choice>:<id>`) is shared across adapters — match it so the gateway-side resolvers work without modification.
+
 ### Required function
 
 ```python