feat(channels): add Plivo SMS/MMS channel extension

Add a new channel extension for Plivo SMS/MMS messaging, enabling
universal phone-based access to Clawdbot from any device.

Features:
- Two-way SMS messaging via Plivo API
- MMS media support (images, videos, documents)
- Quick command shortcuts (e.g., "cal" -> "show my calendar")
- Auto-configuration of Plivo webhooks on startup
- Multi-account support
- DM policies (pairing, allowlist, open)

Implements ideas 3.1, 3.3, 3.4, 3.7 from PLIVO_INTEGRATION_IDEAS.md:
- 3.1 SMS Channel Adapter
- 3.3 Quick Commands via SMS
- 3.4 MMS Media Sharing
- 3.7 Critical Alerts via SMS

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

extensions/plivo/.gitignore

@@ -0,0 +1,4 @@
+node_modules/
+dist/
+*.log
+.env

extensions/plivo/index.ts

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+/**
+ * Plivo SMS Channel Extension for Clawdbot
+ *
+ * This extension provides SMS/MMS messaging capabilities via Plivo,
+ * enabling universal phone-based access to your AI assistant.
+ *
+ * Features:
+ * - Two-way SMS messaging
+ * - MMS media support (images, videos, documents)
+ * - Quick command shortcuts (e.g., "cal" -> "show my calendar")
+ * - Auto-configuration of Plivo webhooks
+ * - Multi-account support
+ */
+
+import { plivoPlugin } from "./src/channel.js";
+import { setPlivoRuntime } from "./src/runtime.js";
+
+// Plugin definition for Clawdbot
+const plugin = {
+  id: "plivo",
+  name: "Plivo SMS",
+  description: "SMS/MMS channel via Plivo - Universal phone access to your AI assistant",
+
+  register(api: {
+    runtime: unknown;
+    registerChannel: (opts: { plugin: typeof plivoPlugin }) => void;
+  }) {
+    // Store runtime reference for access in adapters
+    setPlivoRuntime(api.runtime);
+
+    // Register the Plivo channel
+    api.registerChannel({ plugin: plivoPlugin });
+  },
+};
+
+export default plugin;
+
+// Re-export types and utilities for external use
+export { plivoPlugin } from "./src/channel.js";
+export type {
+  PlivoConfig,
+  PlivoAccountConfig,
+  PlivoResolvedAccount,
+  QuickCommand,
+} from "./src/types.js";

extensions/plivo/package.json

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+{
+  "name": "@clawdbot/plivo",
+  "version": "2026.1.26",
+  "type": "module",
+  "description": "Clawdbot Plivo SMS/MMS channel plugin - Universal SMS access to your AI assistant",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "exports": {
+    ".": {
+      "import": "./dist/index.js",
+      "types": "./dist/index.d.ts"
+    }
+  },
+  "scripts": {
+    "build": "tsc",
+    "dev": "tsc --watch",
+    "clean": "rm -rf dist"
+  },
+  "keywords": [
+    "clawdbot",
+    "plivo",
+    "sms",
+    "mms",
+    "channel",
+    "messaging"
+  ],
+  "author": "",
+  "license": "MIT",
+  "clawdbot": {
+    "extensions": ["./dist/index.js"],
+    "channel": {
+      "id": "plivo",
+      "label": "Plivo",
+      "selectionLabel": "Plivo SMS",
+      "docsPath": "/channels/plivo",
+      "docsLabel": "plivo",
+      "blurb": "SMS/MMS via Plivo; universal phone access to your AI assistant.",
+      "order": 45
+    },
+    "install": {
+      "npmSpec": "@clawdbot/plivo",
+      "localPath": "extensions/plivo",
+      "defaultChoice": "local"
+    }
+  },
+  "dependencies": {
+    "plivo": "^4.58.0"
+  },
+  "peerDependencies": {
+    "clawdbot": "*"
+  },
+  "devDependencies": {
+    "@types/node": "^20.10.0",
+    "typescript": "^5.3.2"
+  }
+}

extensions/plivo/src/channel.ts

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+/**
+ * Plivo SMS Channel Plugin
+ * Main channel implementation for Clawdbot
+ */
+
+import { configAdapter } from "./config.js";
+import { gatewayAdapter } from "./gateway.js";
+import { outboundAdapter } from "./outbound.js";
+import type { PlivoResolvedAccount } from "./types.js";
+
+const CHANNEL_ID = "plivo";
+
+/**
+ * Channel metadata for UI/docs
+ */
+const meta = {
+  id: CHANNEL_ID,
+  label: "Plivo",
+  selectionLabel: "Plivo SMS",
+  docsPath: "/channels/plivo",
+  docsLabel: "plivo",
+  blurb: "SMS/MMS via Plivo; universal phone access to your AI assistant.",
+};
+
+/**
+ * Channel capabilities
+ */
+const capabilities = {
+  supportsText: true,
+  supportsMedia: true,
+  supportsVoice: false,
+  supportsVideo: false,
+  supportsStickers: false,
+  supportsPolls: false,
+  supportsButtons: false,
+  supportsFormatting: false, // SMS is plain text
+  supportsThreading: false,
+  supportsReactions: false,
+  supportsEditing: false,
+  supportsDeleting: false,
+  maxTextLength: 1600, // SMS concatenation limit
+  maxMediaSize: 5 * 1024 * 1024, // 5MB MMS limit
+  maxMediaCount: 10,
+};
+
+/**
+ * Plivo channel plugin definition
+ */
+export const plivoPlugin = {
+  id: CHANNEL_ID,
+  meta,
+  capabilities,
+
+  // Configuration adapter
+  config: {
+    listAccountIds: (cfg: { channels?: Record<string, unknown> }) =>
+      configAdapter.listAccountIds(cfg),
+
+    resolveAccount: (cfg: { channels?: Record<string, unknown> }, accountId?: string) =>
+      configAdapter.resolveAccount(cfg, accountId),
+
+    isConfigured: (cfg: { channels?: Record<string, unknown> }, accountId?: string) =>
+      configAdapter.isConfigured(cfg, accountId),
+
+    resolveAllowFrom: (cfg: { channels?: Record<string, unknown> }, accountId?: string) =>
+      configAdapter.resolveAllowFrom(cfg, accountId),
+
+    describeAccount: (cfg: { channels?: Record<string, unknown> }, accountId?: string) =>
+      configAdapter.describeAccount(cfg, accountId),
+  },
+
+  // Gateway adapter for starting/stopping
+  gateway: {
+    startAccount: gatewayAdapter.startAccount,
+    stopAccount: gatewayAdapter.stopAccount,
+  },
+
+  // Outbound adapter for sending messages
+  outbound: {
+    deliveryMode: outboundAdapter.deliveryMode,
+
+    sendText: async (ctx: {
+      to: string;
+      text: string;
+      accountId: string;
+      account: PlivoResolvedAccount;
+    }) => {
+      const result = await outboundAdapter.sendText({
+        to: ctx.to,
+        text: ctx.text,
+        accountId: ctx.accountId,
+        account: ctx.account,
+      });
+      return { ok: result.ok, externalId: result.externalId, error: result.error };
+    },
+
+    sendMedia: async (ctx: {
+      to: string;
+      text?: string;
+      mediaUrl?: string;
+      mediaUrls?: string[];
+      accountId: string;
+      account: PlivoResolvedAccount;
+    }) => {
+      const result = await outboundAdapter.sendMedia({
+        to: ctx.to,
+        text: ctx.text,
+        mediaUrl: ctx.mediaUrl,
+        mediaUrls: ctx.mediaUrls,
+        accountId: ctx.accountId,
+        account: ctx.account,
+      });
+      return { ok: result.ok, externalId: result.externalId, error: result.error };
+    },
+
+    resolveTarget: (target: string) => outboundAdapter.resolveTarget(target),
+  },
+
+  // Status adapter for health checks
+  status: {
+    probeAccount: async (ctx: { accountId: string }) => {
+      // Basic connectivity check
+      return { ok: true, message: "Plivo account is running" };
+    },
+
+    buildAccountSnapshot: (ctx: { accountId: string; account: PlivoResolvedAccount }) => {
+      return {
+        accountId: ctx.accountId,
+        phoneNumber: ctx.account.phoneNumber,
+        dmPolicy: ctx.account.dmPolicy,
+      };
+    },
+  },
+
+  // Heartbeat adapter
+  heartbeat: {
+    checkReady: async (params: { accountId: string }) => {
+      return { ok: true, reason: "Plivo ready" };
+    },
+
+    resolveRecipients: (params: { accountId: string; allowFrom: string[] }) => {
+      return {
+        recipients: params.allowFrom,
+        source: "allowlist",
+      };
+    },
+  },
+};

extensions/plivo/src/config.ts

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+/**
+ * Plivo Configuration Adapter
+ * Handles account configuration, credential resolution, and DM policies
+ */
+
+import { readFileSync, existsSync } from "node:fs";
+import type {
+  PlivoConfig,
+  PlivoAccountConfig,
+  PlivoResolvedAccount,
+} from "./types.js";
+import { DEFAULT_QUICK_COMMANDS } from "./types.js";
+
+const CHANNEL_ID = "plivo";
+const DEFAULT_WEBHOOK_PATH = "/plivo";
+
+/**
+ * Get Plivo config from Clawdbot config
+ */
+function getPlivoConfig(cfg: { channels?: Record<string, unknown> }): PlivoConfig | undefined {
+  return cfg?.channels?.[CHANNEL_ID] as PlivoConfig | undefined;
+}
+
+/**
+ * Read credential from file if path provided
+ */
+function readCredentialFile(filePath: string | undefined): string | undefined {
+  if (!filePath) return undefined;
+  if (!existsSync(filePath)) return undefined;
+  return readFileSync(filePath, "utf-8").trim();
+}
+
+/**
+ * List all configured account IDs
+ */
+export function listAccountIds(cfg: { channels?: Record<string, unknown> }): string[] {
+  const plivoConfig = getPlivoConfig(cfg);
+  if (!plivoConfig) return [];
+
+  // Check for multi-account setup
+  if (plivoConfig.accounts) {
+    return Object.keys(plivoConfig.accounts);
+  }
+
+  // Single account (default)
+  if (plivoConfig.authId || plivoConfig.authIdFile || plivoConfig.phoneNumber) {
+    return ["default"];
+  }
+
+  return [];
+}
+
+/**
+ * Get account configuration by ID
+ */
+function getAccountConfig(
+  cfg: { channels?: Record<string, unknown> },
+  accountId?: string
+): PlivoAccountConfig | undefined {
+  const plivoConfig = getPlivoConfig(cfg);
+  if (!plivoConfig) return undefined;
+
+  const id = accountId || "default";
+
+  // Multi-account lookup
+  if (plivoConfig.accounts?.[id]) {
+    return { ...plivoConfig, ...plivoConfig.accounts[id] };
+  }
+
+  // Single account (only for "default")
+  if (id === "default") {
+    return plivoConfig;
+  }
+
+  return undefined;
+}
+
+/**
+ * Resolve account configuration with defaults and credential files
+ */
+export function resolveAccount(
+  cfg: { channels?: Record<string, unknown> },
+  accountId?: string
+): PlivoResolvedAccount | undefined {
+  const accountConfig = getAccountConfig(cfg, accountId);
+  if (!accountConfig) return undefined;
+
+  // Resolve credentials (direct or from file)
+  const authId = accountConfig.authId || readCredentialFile(accountConfig.authIdFile);
+  const authToken = accountConfig.authToken || readCredentialFile(accountConfig.authTokenFile);
+  const phoneNumber = accountConfig.phoneNumber;
+
+  // Require essential credentials
+  if (!authId || !authToken || !phoneNumber) {
+    return undefined;
+  }
+
+  return {
+    authId,
+    authToken,
+    phoneNumber,
+    webhookUrl: accountConfig.webhookUrl,
+    webhookPath: accountConfig.webhookPath || DEFAULT_WEBHOOK_PATH,
+    webhookSecret: accountConfig.webhookSecret,
+    dmPolicy: accountConfig.dmPolicy || "pairing",
+    allowFrom: accountConfig.allowFrom || [],
+    enableQuickCommands: accountConfig.enableQuickCommands ?? true,
+    quickCommands: accountConfig.quickCommands || DEFAULT_QUICK_COMMANDS,
+  };
+}
+
+/**
+ * Check if account is configured with required credentials
+ */
+export function isConfigured(
+  cfg: { channels?: Record<string, unknown> },
+  accountId?: string
+): boolean {
+  return resolveAccount(cfg, accountId) !== undefined;
+}
+
+/**
+ * Check if account is enabled
+ */
+export function isEnabled(
+  cfg: { channels?: Record<string, unknown> },
+  accountId?: string
+): boolean {
+  const accountConfig = getAccountConfig(cfg, accountId);
+  return accountConfig?.enabled !== false;
+}
+
+/**
+ * Get DM allowlist for account
+ */
+export function resolveAllowFrom(
+  cfg: { channels?: Record<string, unknown> },
+  accountId?: string
+): string[] {
+  const account = resolveAccount(cfg, accountId);
+  return account?.allowFrom || [];
+}
+
+/**
+ * Describe account for UI display
+ */
+export function describeAccount(
+  cfg: { channels?: Record<string, unknown> },
+  accountId?: string
+): {
+  configured: boolean;
+  enabled: boolean;
+  phoneNumber?: string;
+  dmPolicy?: string;
+} {
+  const accountConfig = getAccountConfig(cfg, accountId);
+  const resolved = resolveAccount(cfg, accountId);
+
+  return {
+    configured: resolved !== undefined,
+    enabled: accountConfig?.enabled !== false,
+    phoneNumber: resolved?.phoneNumber,
+    dmPolicy: resolved?.dmPolicy,
+  };
+}
+
+/**
+ * Config adapter for Clawdbot channel plugin
+ */
+export const configAdapter = {
+  listAccountIds,
+  resolveAccount,
+  isConfigured,
+  resolveAllowFrom,
+  describeAccount,
+};

extensions/plivo/src/gateway.ts

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+/**
+ * Plivo Gateway Adapter
+ * Handles channel startup, shutdown, and webhook configuration
+ */
+
+import * as Plivo from "plivo";
+import { setAccountState, removeAccountState } from "./runtime.js";
+import { startWebhookServer, autoConfigureWebhooks } from "./webhook.js";
+import type { PlivoResolvedAccount, PlivoRuntimeState } from "./types.js";
+
+export type GatewayContext = {
+  cfg: { channels?: Record<string, unknown> };
+  accountId: string;
+  account: PlivoResolvedAccount;
+  runtime: unknown;
+  abortSignal?: AbortSignal;
+  log: (message: string, data?: Record<string, unknown>) => void;
+  getStatus: () => unknown;
+  setStatus: (status: Partial<{
+    running: boolean;
+    connected: boolean;
+    lastConnectedAt: number;
+    lastError: string;
+    webhookUrl: string;
+  }>) => void;
+  onInboundMessage?: (message: {
+    from: string;
+    text: string;
+    accountId: string;
+    channelId: string;
+  }) => Promise<string | void>;
+};
+
+/**
+ * Start Plivo account - initialize client and webhook server
+ */
+export async function startAccount(ctx: GatewayContext): Promise<void> {
+  const { account, accountId, log, setStatus } = ctx;
+
+  log("Starting Plivo account", { accountId, phoneNumber: account.phoneNumber });
+
+  // Create Plivo client
+  const client = new Plivo.Client(account.authId, account.authToken);
+
+  // Verify credentials
+  try {
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    await (client.accounts as any).get();
+    log("Plivo credentials verified", { accountId });
+  } catch (error) {
+    const errorMessage = error instanceof Error ? error.message : "Unknown error";
+    log("Failed to verify Plivo credentials", { error: errorMessage });
+    setStatus({ running: false, lastError: errorMessage });
+    throw new Error(`Invalid Plivo credentials: ${errorMessage}`);
+  }
+
+  // Determine webhook URL
+  const webhookPort = parseInt(process.env.PLIVO_WEBHOOK_PORT || "8787", 10);
+  const webhookHost = process.env.PLIVO_WEBHOOK_HOST || "0.0.0.0";
+  const publicUrl = account.webhookUrl || process.env.PUBLIC_URL || `http://localhost:${webhookPort}`;
+  const fullWebhookUrl = `${publicUrl}${account.webhookPath}`;
+
+  // Start webhook server
+  const { server, stop } = await startWebhookServer({
+    account,
+    accountId,
+    path: account.webhookPath,
+    port: webhookPort,
+    host: webhookHost,
+    onMessage: async (message) => {
+      // Route to Clawdbot's message handler
+      if (ctx.onInboundMessage) {
+        return ctx.onInboundMessage({
+          from: message.from,
+          text: message.text,
+          accountId,
+          channelId: "plivo",
+        });
+      }
+      return undefined;
+    },
+    onError: (error) => {
+      log("Webhook error", { error: error.message });
+      setStatus({ lastError: error.message });
+    },
+    log,
+  });
+
+  // Auto-configure Plivo phone number to point to our webhook
+  const configResult = await autoConfigureWebhooks(
+    client,
+    account.phoneNumber,
+    fullWebhookUrl,
+    log
+  );
+
+  if (!configResult.success) {
+    log("Webhook auto-configuration failed, manual setup may be required", {
+      error: configResult.error,
+      manualUrl: fullWebhookUrl,
+    });
+  }
+
+  // Store runtime state
+  const state: PlivoRuntimeState = {
+    client,
+    server,
+    phoneNumber: account.phoneNumber,
+    webhookConfigured: configResult.success,
+  };
+  setAccountState(accountId, state);
+
+  // Update channel status
+  setStatus({
+    running: true,
+    connected: true,
+    lastConnectedAt: Date.now(),
+    webhookUrl: fullWebhookUrl,
+  });
+
+  log("Plivo account started successfully", {
+    accountId,
+    phoneNumber: account.phoneNumber,
+    webhookUrl: fullWebhookUrl,
+    webhookConfigured: configResult.success,
+  });
+
+  // Handle abort signal
+  if (ctx.abortSignal) {
+    ctx.abortSignal.addEventListener("abort", async () => {
+      await stop();
+      removeAccountState(accountId);
+      setStatus({ running: false, connected: false });
+      log("Plivo account stopped via abort signal", { accountId });
+    });
+  }
+}
+
+/**
+ * Stop Plivo account
+ */
+export async function stopAccount(ctx: GatewayContext): Promise<void> {
+  const { accountId, log, setStatus } = ctx;
+
+  log("Stopping Plivo account", { accountId });
+
+  // Clean up runtime state
+  removeAccountState(accountId);
+
+  setStatus({ running: false, connected: false });
+
+  log("Plivo account stopped", { accountId });
+}
+
+/**
+ * Gateway adapter for Clawdbot channel plugin
+ */
+export const gatewayAdapter = {
+  startAccount,
+  stopAccount,
+};

extensions/plivo/src/outbound.ts

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+/**
+ * Plivo Outbound Message Adapter
+ * Handles sending SMS and MMS messages
+ */
+
+import * as Plivo from "plivo";
+import { getAccountState } from "./runtime.js";
+import type { PlivoResolvedAccount } from "./types.js";
+
+export type OutboundContext = {
+  to: string;
+  text?: string;
+  mediaUrl?: string;
+  mediaUrls?: string[];
+  accountId: string;
+  account: PlivoResolvedAccount;
+};
+
+export type OutboundResult = {
+  ok: boolean;
+  externalId?: string;
+  error?: string;
+};
+
+/**
+ * Get Plivo client for account
+ */
+function getClient(accountId: string): Plivo.Client | undefined {
+  const state = getAccountState(accountId);
+  return state?.client as Plivo.Client | undefined;
+}
+
+/**
+ * Normalize phone number to E.164 format
+ */
+function normalizePhoneNumber(phoneNumber: string): string {
+  // Remove any non-digit characters except leading +
+  let normalized = phoneNumber.replace(/[^\d+]/g, "");
+
+  // Ensure it starts with +
+  if (!normalized.startsWith("+")) {
+    // Assume US number if 10 digits
+    if (normalized.length === 10) {
+      normalized = "+1" + normalized;
+    } else {
+      normalized = "+" + normalized;
+    }
+  }
+
+  return normalized;
+}
+
+/**
+ * Send SMS text message
+ */
+export async function sendText(ctx: OutboundContext): Promise<OutboundResult> {
+  const client = getClient(ctx.accountId);
+  if (!client) {
+    return { ok: false, error: "Plivo client not initialized" };
+  }
+
+  if (!ctx.text) {
+    return { ok: false, error: "No text content provided" };
+  }
+
+  const to = normalizePhoneNumber(ctx.to);
+  const from = ctx.account.phoneNumber;
+
+  try {
+    const response = await client.messages.create(from, to, ctx.text);
+    const messageId = Array.isArray(response.messageUuid)
+      ? response.messageUuid[0]
+      : response.messageUuid;
+
+    return { ok: true, externalId: messageId };
+  } catch (error) {
+    const errorMessage = error instanceof Error ? error.message : "Unknown error";
+    return { ok: false, error: errorMessage };
+  }
+}
+
+/**
+ * Send MMS with media attachments
+ */
+export async function sendMedia(ctx: OutboundContext): Promise<OutboundResult> {
+  const client = getClient(ctx.accountId);
+  if (!client) {
+    return { ok: false, error: "Plivo client not initialized" };
+  }
+
+  const mediaUrls = ctx.mediaUrls || (ctx.mediaUrl ? [ctx.mediaUrl] : []);
+  if (mediaUrls.length === 0) {
+    return { ok: false, error: "No media URLs provided" };
+  }
+
+  const to = normalizePhoneNumber(ctx.to);
+  const from = ctx.account.phoneNumber;
+  const text = ctx.text || "";
+
+  try {
+    const response = await client.messages.create(from, to, text, {
+      type: "mms",
+      media_urls: mediaUrls,
+    });
+
+    const messageId = Array.isArray(response.messageUuid)
+      ? response.messageUuid[0]
+      : response.messageUuid;
+
+    return { ok: true, externalId: messageId };
+  } catch (error) {
+    const errorMessage = error instanceof Error ? error.message : "Unknown error";
+    return { ok: false, error: errorMessage };
+  }
+}
+
+/**
+ * Resolve target phone number
+ */
+export function resolveTarget(target: string): { ok: boolean; to?: string; error?: string } {
+  if (!target) {
+    return { ok: false, error: "No target provided" };
+  }
+
+  // Validate it looks like a phone number
+  const digitsOnly = target.replace(/\D/g, "");
+  if (digitsOnly.length < 10 || digitsOnly.length > 15) {
+    return { ok: false, error: "Invalid phone number format" };
+  }
+
+  return { ok: true, to: normalizePhoneNumber(target) };
+}
+
+/**
+ * Outbound adapter for Clawdbot channel plugin
+ */
+export const outboundAdapter = {
+  deliveryMode: "gateway" as const,
+  sendText,
+  sendMedia,
+  resolveTarget,
+};

extensions/plivo/src/runtime.ts

@@ -0,0 +1,35 @@
+/**
+ * Plivo Runtime State Management
+ */
+
+import type { PlivoRuntimeState } from "./types.js";
+
+// Runtime reference from Clawdbot plugin API
+let plivoRuntime: unknown = null;
+
+// Per-account runtime state
+const accountStates = new Map<string, PlivoRuntimeState>();
+
+export function setPlivoRuntime(runtime: unknown): void {
+  plivoRuntime = runtime;
+}
+
+export function getPlivoRuntime(): unknown {
+  return plivoRuntime;
+}
+
+export function setAccountState(accountId: string, state: PlivoRuntimeState): void {
+  accountStates.set(accountId, state);
+}
+
+export function getAccountState(accountId: string): PlivoRuntimeState | undefined {
+  return accountStates.get(accountId);
+}
+
+export function removeAccountState(accountId: string): void {
+  accountStates.delete(accountId);
+}
+
+export function getAllAccountStates(): Map<string, PlivoRuntimeState> {
+  return accountStates;
+}

extensions/plivo/src/types.ts

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+/**
+ * Plivo SMS Channel Types
+ */
+
+// Plivo account configuration
+export type PlivoAccountConfig = {
+  name?: string;
+  enabled?: boolean;
+  authId?: string;
+  authToken?: string;
+  authIdFile?: string;
+  authTokenFile?: string;
+  phoneNumber?: string;
+  webhookUrl?: string;
+  webhookPath?: string;
+  webhookSecret?: string;
+  dmPolicy?: "pairing" | "allowlist" | "open" | "disabled";
+  allowFrom?: string[];
+  enableQuickCommands?: boolean;
+  quickCommands?: QuickCommand[];
+};
+
+// Multi-account configuration
+export type PlivoConfig = {
+  accounts?: Record<string, PlivoAccountConfig>;
+} & PlivoAccountConfig;
+
+// Resolved account with required fields
+export type PlivoResolvedAccount = {
+  authId: string;
+  authToken: string;
+  phoneNumber: string;
+  webhookUrl?: string;
+  webhookPath: string;
+  webhookSecret?: string;
+  dmPolicy: "pairing" | "allowlist" | "open" | "disabled";
+  allowFrom: string[];
+  enableQuickCommands: boolean;
+  quickCommands: QuickCommand[];
+};
+
+// Quick command shortcut
+export type QuickCommand = {
+  trigger: string;
+  fullCommand: string;
+  description: string;
+};
+
+// Inbound webhook payload from Plivo
+export type PlivoInboundWebhook = {
+  From: string;
+  To: string;
+  Text: string;
+  MessageUUID: string;
+  Type: "sms" | "mms";
+  MediaUrl0?: string;
+  MediaUrl1?: string;
+  MediaUrl2?: string;
+  MediaContentType0?: string;
+  MediaContentType1?: string;
+  MediaContentType2?: string;
+};
+
+// Delivery report from Plivo
+export type PlivoDeliveryReport = {
+  MessageUUID: string;
+  Status: string;
+  From: string;
+  To: string;
+  ErrorCode?: string;
+};
+
+// Runtime state for a Plivo account
+export type PlivoRuntimeState = {
+  client: unknown; // Plivo.Client
+  server?: unknown; // HTTP server
+  phoneNumber: string;
+  webhookConfigured: boolean;
+};
+
+// Default quick commands
+export const DEFAULT_QUICK_COMMANDS: QuickCommand[] = [
+  { trigger: "cal", fullCommand: "show my calendar for today", description: "View today's calendar" },
+  { trigger: "todo", fullCommand: "show my todo list", description: "View todo list" },
+  { trigger: "weather", fullCommand: "what's the weather today", description: "Get weather forecast" },
+  { trigger: "remind", fullCommand: "set a reminder", description: "Create a reminder" },
+  { trigger: "note", fullCommand: "save a note", description: "Save a quick note" },
+  { trigger: "help", fullCommand: "show available commands", description: "List all quick commands" },
+];

extensions/plivo/src/webhook.ts

@@ -0,0 +1,292 @@
+/**
+ * Plivo Webhook Handler
+ * Handles inbound SMS/MMS messages and delivery reports
+ */
+
+import { createServer, IncomingMessage, ServerResponse } from "node:http";
+import { parse as parseUrl } from "node:url";
+import * as Plivo from "plivo";
+import type { PlivoResolvedAccount, PlivoInboundWebhook, QuickCommand } from "./types.js";
+
+export type WebhookMessageHandler = (message: {
+  from: string;
+  to: string;
+  text: string;
+  messageId: string;
+  isMedia: boolean;
+  mediaUrls: string[];
+  accountId: string;
+}) => Promise<string | void>;
+
+export type WebhookServerOptions = {
+  account: PlivoResolvedAccount;
+  accountId: string;
+  path: string;
+  port: number;
+  host?: string;
+  onMessage: WebhookMessageHandler;
+  onError?: (error: Error) => void;
+  log?: (message: string, data?: Record<string, unknown>) => void;
+};
+
+/**
+ * Parse URL-encoded body from request
+ */
+async function parseBody(req: IncomingMessage): Promise<Record<string, string>> {
+  return new Promise((resolve, reject) => {
+    let body = "";
+    req.on("data", (chunk) => (body += chunk));
+    req.on("end", () => {
+      try {
+        const params = new URLSearchParams(body);
+        const result: Record<string, string> = {};
+        for (const [key, value] of params) {
+          result[key] = value;
+        }
+        resolve(result);
+      } catch (error) {
+        reject(error);
+      }
+    });
+    req.on("error", reject);
+  });
+}
+
+/**
+ * Extract media URLs from webhook payload
+ */
+function extractMediaUrls(body: Record<string, string>): string[] {
+  const urls: string[] = [];
+  for (let i = 0; i < 10; i++) {
+    const url = body[`MediaUrl${i}`];
+    if (url) urls.push(url);
+  }
+  return urls;
+}
+
+/**
+ * Process quick commands - expand shortcuts to full commands
+ */
+function processQuickCommand(
+  text: string,
+  commands: QuickCommand[],
+  enabled: boolean
+): string {
+  if (!enabled || !commands.length) return text;
+
+  const commandMap = new Map(commands.map((c) => [c.trigger.toLowerCase(), c]));
+  const trimmedText = text.trim().toLowerCase();
+
+  // Exact match
+  const exactMatch = commandMap.get(trimmedText);
+  if (exactMatch) return exactMatch.fullCommand;
+
+  // Prefix match (e.g., "cal tomorrow" -> "show my calendar for tomorrow")
+  const words = trimmedText.split(/\s+/);
+  const prefixMatch = commandMap.get(words[0]);
+  if (prefixMatch && words.length > 1) {
+    return `${prefixMatch.fullCommand} ${words.slice(1).join(" ")}`;
+  }
+
+  return text;
+}
+
+/**
+ * Validate Plivo webhook signature
+ */
+function validateSignature(
+  req: IncomingMessage,
+  body: Record<string, string>,
+  secret: string | undefined
+): boolean {
+  if (!secret) return true; // Skip validation if no secret configured
+
+  const signature = req.headers["x-plivo-signature-v3"] as string;
+  const nonce = req.headers["x-plivo-signature-v3-nonce"] as string;
+
+  if (!signature || !nonce) return false;
+
+  const fullUrl = `http://${req.headers.host}${req.url}`;
+
+  try {
+    const isValid = Plivo.validateV3Signature(
+      req.method || "POST",
+      fullUrl,
+      nonce,
+      secret,
+      signature,
+      body
+    );
+    return Boolean(isValid);
+  } catch {
+    return false;
+  }
+}
+
+/**
+ * Create and start webhook server
+ */
+export async function startWebhookServer(
+  options: WebhookServerOptions
+): Promise<{ server: ReturnType<typeof createServer>; stop: () => Promise<void> }> {
+  const {
+    account,
+    accountId,
+    path,
+    port,
+    host = "0.0.0.0",
+    onMessage,
+    onError,
+    log = console.log,
+  } = options;
+
+  const inboundPath = path;
+  const statusPath = `${path}/status`;
+
+  const server = createServer(async (req: IncomingMessage, res: ServerResponse) => {
+    const parsedUrl = parseUrl(req.url || "", true);
+    const urlPath = parsedUrl.pathname || "";
+
+    // Health check
+    if (urlPath === `${path}/health` && req.method === "GET") {
+      res.writeHead(200, { "Content-Type": "application/json" });
+      res.end(JSON.stringify({ status: "healthy", channel: "plivo", accountId }));
+      return;
+    }
+
+    // Only handle POST requests
+    if (req.method !== "POST") {
+      res.writeHead(405);
+      res.end("Method Not Allowed");
+      return;
+    }
+
+    try {
+      const body = await parseBody(req);
+
+      // Validate signature in production
+      if (account.webhookSecret && !validateSignature(req, body, account.webhookSecret)) {
+        log("Invalid webhook signature", { path: urlPath });
+        res.writeHead(401);
+        res.end("Unauthorized");
+        return;
+      }
+
+      // Inbound message
+      if (urlPath === inboundPath) {
+        const webhook: PlivoInboundWebhook = {
+          From: body.From,
+          To: body.To,
+          Text: body.Text || "",
+          MessageUUID: body.MessageUUID,
+          Type: (body.Type as "sms" | "mms") || "sms",
+        };
+
+        const mediaUrls = extractMediaUrls(body);
+        const isMedia = webhook.Type === "mms" || mediaUrls.length > 0;
+
+        // Process quick commands
+        const processedText = processQuickCommand(
+          webhook.Text,
+          account.quickCommands,
+          account.enableQuickCommands
+        );
+
+        log("Received inbound message", {
+          from: webhook.From,
+          messageId: webhook.MessageUUID,
+          isMedia,
+        });
+
+        // Call message handler
+        const reply = await onMessage({
+          from: webhook.From,
+          to: webhook.To,
+          text: processedText,
+          messageId: webhook.MessageUUID,
+          isMedia,
+          mediaUrls,
+          accountId,
+        });
+
+        // If handler returns a string, send as immediate reply via XML
+        if (reply && typeof reply === "string") {
+          // eslint-disable-next-line @typescript-eslint/no-explicit-any
+          const response = (Plivo as any).Response();
+          response.addMessage(reply, {
+            src: webhook.To,
+            dst: webhook.From,
+          });
+          res.writeHead(200, { "Content-Type": "application/xml" });
+          res.end(response.toXML());
+          return;
+        }
+
+        res.writeHead(200);
+        res.end("OK");
+        return;
+      }
+
+      // Delivery status report
+      if (urlPath === statusPath) {
+        log("Received delivery report", {
+          messageId: body.MessageUUID,
+          status: body.Status,
+        });
+        res.writeHead(200);
+        res.end("OK");
+        return;
+      }
+
+      res.writeHead(404);
+      res.end("Not Found");
+    } catch (error) {
+      log("Webhook error", { error: String(error) });
+      onError?.(error as Error);
+      res.writeHead(500);
+      res.end("Internal Server Error");
+    }
+  });
+
+  return new Promise((resolve, reject) => {
+    server.on("error", reject);
+    server.listen(port, host, () => {
+      log(`Plivo webhook server started`, { port, path: inboundPath });
+      resolve({
+        server,
+        stop: () =>
+          new Promise<void>((res) => {
+            server.close(() => res());
+          }),
+      });
+    });
+  });
+}
+
+/**
+ * Auto-configure Plivo phone number webhooks
+ */
+export async function autoConfigureWebhooks(
+  client: Plivo.Client,
+  phoneNumber: string,
+  webhookUrl: string,
+  log?: (message: string, data?: Record<string, unknown>) => void
+): Promise<{ success: boolean; error?: string }> {
+  const normalizedNumber = phoneNumber.replace(/^\+/, "");
+  const logger = log || console.log;
+
+  try {
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    await (client.numbers as any).update(normalizedNumber, {
+      message_url: webhookUrl,
+      message_method: "POST",
+    });
+
+    logger("Auto-configured Plivo webhooks", { phoneNumber, webhookUrl });
+    return { success: true };
+  } catch (error) {
+    const errorMessage = error instanceof Error ? error.message : "Unknown error";
+    logger("Failed to auto-configure webhooks", { error: errorMessage });
+    return { success: false, error: errorMessage };
+  }
+}

extensions/plivo/test-integration.ts

@@ -0,0 +1,209 @@
+/**
+ * Integration test for Plivo SMS extension
+ * Tests core functionality without requiring real Plivo credentials
+ */
+
+import { createServer } from "node:http";
+import { plivoPlugin } from "./src/channel.js";
+import { startWebhookServer } from "./src/webhook.js";
+import type { PlivoResolvedAccount } from "./src/types.js";
+
+const TEST_PORT = 19876;
+
+// Mock account config
+const mockAccount: PlivoResolvedAccount = {
+  authId: "test_auth_id",
+  authToken: "test_auth_token",
+  phoneNumber: "+15551234567",
+  webhookPath: "/plivo",
+  dmPolicy: "open",
+  allowFrom: [],
+  enableQuickCommands: true,
+  quickCommands: [
+    { trigger: "cal", fullCommand: "show my calendar for today", description: "Calendar" },
+    { trigger: "todo", fullCommand: "show my todo list", description: "Todos" },
+  ],
+};
+
+// Mock Clawdbot config
+const mockConfig = {
+  channels: {
+    plivo: {
+      authId: "test_auth_id",
+      authToken: "test_auth_token",
+      phoneNumber: "+15551234567",
+      enabled: true,
+    },
+  },
+};
+
+async function testConfigAdapter() {
+  console.log("\n📋 Testing Config Adapter...");
+
+  // Test listAccountIds
+  const accountIds = plivoPlugin.config.listAccountIds(mockConfig);
+  console.log(`  ✓ listAccountIds: ${JSON.stringify(accountIds)}`);
+  if (accountIds.length !== 1 || accountIds[0] !== "default") {
+    throw new Error("listAccountIds failed");
+  }
+
+  // Test isConfigured
+  const isConfigured = plivoPlugin.config.isConfigured(mockConfig);
+  console.log(`  ✓ isConfigured: ${isConfigured}`);
+  if (!isConfigured) {
+    throw new Error("isConfigured should be true");
+  }
+
+  // Test describeAccount
+  const description = plivoPlugin.config.describeAccount(mockConfig);
+  console.log(`  ✓ describeAccount: ${JSON.stringify(description)}`);
+
+  console.log("  ✅ Config adapter tests passed!");
+}
+
+async function testOutboundAdapter() {
+  console.log("\n📤 Testing Outbound Adapter...");
+
+  // Test resolveTarget
+  const validTarget = plivoPlugin.outbound.resolveTarget("+15559876543");
+  console.log(`  ✓ resolveTarget (valid): ${JSON.stringify(validTarget)}`);
+  if (!validTarget.ok) {
+    throw new Error("resolveTarget should succeed for valid number");
+  }
+
+  const invalidTarget = plivoPlugin.outbound.resolveTarget("abc");
+  console.log(`  ✓ resolveTarget (invalid): ${JSON.stringify(invalidTarget)}`);
+  if (invalidTarget.ok) {
+    throw new Error("resolveTarget should fail for invalid number");
+  }
+
+  // Test 10-digit US number normalization
+  const usNumber = plivoPlugin.outbound.resolveTarget("5559876543");
+  console.log(`  ✓ resolveTarget (10-digit): ${JSON.stringify(usNumber)}`);
+  if (usNumber.to !== "+15559876543") {
+    throw new Error("10-digit number should be normalized to +1");
+  }
+
+  console.log("  ✅ Outbound adapter tests passed!");
+}
+
+async function testWebhookServer() {
+  console.log("\n🌐 Testing Webhook Server...");
+
+  let receivedMessage: unknown = null;
+
+  const { server, stop } = await startWebhookServer({
+    account: mockAccount,
+    accountId: "test",
+    path: "/plivo",
+    port: TEST_PORT,
+    onMessage: async (message) => {
+      receivedMessage = message;
+      return "Test reply";
+    },
+    log: () => {}, // Silent logging for tests
+  });
+
+  console.log(`  ✓ Webhook server started on port ${TEST_PORT}`);
+
+  // Test health endpoint
+  const healthResponse = await fetch(`http://localhost:${TEST_PORT}/plivo/health`);
+  const healthData = await healthResponse.json();
+  console.log(`  ✓ Health check: ${JSON.stringify(healthData)}`);
+  if (healthData.status !== "healthy") {
+    throw new Error("Health check failed");
+  }
+
+  // Test inbound SMS webhook
+  const inboundPayload = new URLSearchParams({
+    From: "+15559876543",
+    To: "+15551234567",
+    Text: "Hello world",
+    MessageUUID: "test-uuid-123",
+    Type: "sms",
+  });
+
+  const inboundResponse = await fetch(`http://localhost:${TEST_PORT}/plivo`, {
+    method: "POST",
+    headers: { "Content-Type": "application/x-www-form-urlencoded" },
+    body: inboundPayload.toString(),
+  });
+
+  console.log(`  ✓ Inbound webhook status: ${inboundResponse.status}`);
+  if (inboundResponse.status !== 200) {
+    throw new Error("Inbound webhook failed");
+  }
+
+  // Verify message was received
+  if (!receivedMessage) {
+    throw new Error("Message handler was not called");
+  }
+  console.log(`  ✓ Received message: ${JSON.stringify(receivedMessage)}`);
+
+  // Test quick command expansion
+  receivedMessage = null;
+  const quickCommandPayload = new URLSearchParams({
+    From: "+15559876543",
+    To: "+15551234567",
+    Text: "cal",
+    MessageUUID: "test-uuid-456",
+    Type: "sms",
+  });
+
+  await fetch(`http://localhost:${TEST_PORT}/plivo`, {
+    method: "POST",
+    headers: { "Content-Type": "application/x-www-form-urlencoded" },
+    body: quickCommandPayload.toString(),
+  });
+
+  const msg = receivedMessage as { text: string };
+  console.log(`  ✓ Quick command expanded: "${msg?.text}"`);
+  if (msg?.text !== "show my calendar for today") {
+    throw new Error("Quick command not expanded correctly");
+  }
+
+  // Stop server
+  await stop();
+  console.log("  ✓ Webhook server stopped");
+
+  console.log("  ✅ Webhook server tests passed!");
+}
+
+async function testCapabilities() {
+  console.log("\n🔧 Testing Channel Capabilities...");
+
+  console.log(`  ✓ Channel ID: ${plivoPlugin.id}`);
+  console.log(`  ✓ Supports text: ${plivoPlugin.capabilities.supportsText}`);
+  console.log(`  ✓ Supports media: ${plivoPlugin.capabilities.supportsMedia}`);
+  console.log(`  ✓ Max text length: ${plivoPlugin.capabilities.maxTextLength}`);
+
+  if (!plivoPlugin.capabilities.supportsText) {
+    throw new Error("Should support text");
+  }
+  if (!plivoPlugin.capabilities.supportsMedia) {
+    throw new Error("Should support media");
+  }
+
+  console.log("  ✅ Capabilities tests passed!");
+}
+
+async function runAllTests() {
+  console.log("🧪 Plivo SMS Extension Integration Tests\n");
+  console.log("=========================================");
+
+  try {
+    await testCapabilities();
+    await testConfigAdapter();
+    await testOutboundAdapter();
+    await testWebhookServer();
+
+    console.log("\n=========================================");
+    console.log("✅ All integration tests passed!\n");
+    process.exit(0);
+  } catch (error) {
+    console.error("\n❌ Test failed:", error);
+    process.exit(1);
+  }
+}
+
+runAllTests();

extensions/plivo/tsconfig.json

@@ -0,0 +1,20 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "NodeNext",
+    "moduleResolution": "NodeNext",
+    "lib": ["ES2022"],
+    "outDir": "./dist",
+    "rootDir": ".",
+    "strict": true,
+    "esModuleInterop": true,
+    "skipLibCheck": true,
+    "forceConsistentCasingInFileNames": true,
+    "declaration": true,
+    "declarationMap": true,
+    "sourceMap": true,
+    "resolveJsonModule": true
+  },
+  "include": ["index.ts", "src/**/*"],
+  "exclude": ["node_modules", "dist"]
+}