fix: restore checkins extension lost during fork sync

2026-01-26 19:29:48 +11:00 · 2026-01-26 19:29:48 +11:00 · 4ee0df1da1
commit 4ee0df1da1
parent 68a82225d6
22 changed files with 3433 additions and 0 deletions
--- a/extensions/checkins/README.md
+++ b/extensions/checkins/README.md
@ -0,0 +1,171 @@
+# Checkins Extension
+
+A Discord standup/check-in management extension for Clawdbot. Automates daily team check-ins via DM conversations and posts summaries to designated channels.
+
+## Features
+
+- Scheduled check-in prompts via Discord DM
+- 3-question standup format (yesterday, today, blockers)
+- Per-member timezone support
+- Vacation mode
+- Auto-posting to team channels
+- Admin-only team management
+
+## How It Works
+
+1. **Admin creates a team** and assigns a Discord channel for standup posts
+2. **Admin adds members** with their timezone
+3. **At each member's scheduled time** (default 5pm in their timezone), the bot DMs them
+4. **Member answers 3 questions** via DM conversation
+5. **Completed check-in is posted** to the team's channel
+
+## Check-in Questions
+
+1. "What did you accomplish today?"
+2. "What will you do next?"
+3. "Any blockers or anything to handover?"
+
+For question 3, members can reply with "none", "skip", "no", or "n/a" to indicate no blockers.
+
+## Admin Commands
+
+All admin commands require Discord server Administrator permission. Talk to the bot naturally - it will use the appropriate tools.
+
+### Team Management
+
+| Command | Example |
+|---------|---------|
+| Create team | "Create a team called Engineering with standups in #engineering-standup" |
+| Delete team | "Delete the Engineering team" |
+| List teams | "What teams are configured?" |
+
+### Member Management
+
+| Command | Example |
+|---------|---------|
+| Add member | "Add @john to the Engineering team, timezone EST" |
+| Remove member | "Remove @john from the Engineering team" |
+| Change timezone | "Change @john's timezone to PST" |
+| List members | "Who is on the Engineering team?" |
+
+### Vacation
+
+| Command | Example |
+|---------|---------|
+| Set vacation | "Set @john on vacation until Friday" |
+| Set indefinite vacation | "Put @john on vacation" |
+| End vacation | "End @john's vacation" |
+
+Members can also set their own vacation by DMing the bot.
+
+## Member Self-Service
+
+Members can DM the bot directly for:
+
+- Setting their own vacation: "I'm on vacation until next Monday"
+- Ending vacation: "I'm back from vacation"
+
+## Timezone Support
+
+The extension accepts flexible timezone formats:
+
+- IANA: `America/New_York`, `Europe/London`, `Asia/Tokyo`
+- Abbreviations: `EST`, `PST`, `UTC`, `GMT`
+- Common names: `Eastern`, `Pacific`, `Central`
+
+## Default Schedule
+
+- Check-in time: 5:00 PM (17:00) in member's timezone
+- Skip weekends: Yes
+- Reminder: Sent 1 hour after initial prompt if no response
+- Abandon: Incomplete check-ins expire at midnight
+
+## Database
+
+Check-in data is stored in SQLite at `~/.clawdbot/checkins.db`:
+
+- **teams**: Team definitions with channel assignments
+- **members**: Team membership with schedules
+- **checkins**: Completed check-in records
+- **conversation_state**: Active DM conversations
+
+## Configuration
+
+Add to your `clawdbot.json`:
+
+```json
+{
+  "plugins": {
+    "entries": {
+      "checkins": {
+        "enabled": true,
+        "config": {
+          "defaultTimezone": "America/New_York",
+          "defaultCheckInTime": "17:00",
+          "reminderDelayMinutes": 60,
+          "abandonAfterMinutes": 420
+        }
+      }
+    }
+  }
+}
+```
+
+## Discord Channel Setup
+
+1. Create channels for each team's standups (e.g., `#engineering-standup`)
+2. Ensure the bot has permission to send messages in those channels
+3. When creating teams, specify the channel ID or mention the channel
+
+## Permissions Required
+
+The bot needs these Discord permissions:
+
+- Send Messages (for standup posts)
+- Read Message History (for context)
+- Add Reactions (for acknowledgments)
+
+Plus the **Message Content Intent** must be enabled in Discord Developer Portal.
+
+## Example Setup Flow
+
+```
+Admin: Create a team called Frontend with standups posted to #frontend-standup
+Bot: Created team "Frontend"
+
+Admin: Add @alice to Frontend, timezone PST
+Bot: Added @alice to Frontend, timezone America/Los_Angeles
+
+Admin: Add @bob to Frontend, timezone EST
+Bot: Added @bob to Frontend, timezone America/New_York
+
+Admin: Set @alice on vacation until Friday
+Bot: @alice is now on vacation until Friday, January 31
+```
+
+At 5pm PST, Alice would receive a DM (but won't because she's on vacation).
+At 5pm EST, Bob receives:
+
+```
+Bot: What did you accomplish today?
+Bob: Fixed the login bug and reviewed 2 PRs
+Bot: What will you do next?
+Bob: Working on the dashboard redesign
+Bot: Any blockers or anything to handover?
+Bob: None
+Bot: Check-in complete! Posted to #frontend-standup
+```
+
+The summary appears in #frontend-standup:
+
+```
+Bob's Check-in
+
+**What did you accomplish today?**
+Fixed the login bug and reviewed 2 PRs
+
+**What will you do next?**
+Working on the dashboard redesign
+
+**Blockers:** None
+```
--- a/extensions/checkins/clawdbot.plugin.json
+++ b/extensions/checkins/clawdbot.plugin.json
@ -0,0 +1,53 @@
+{
+  "id": "checkins",
+  "name": "Team Check-ins",
+  "description": "Manage team standup check-ins via Discord DM",
+  "uiHints": {
+    "enabled": {
+      "label": "Enable Check-ins",
+      "help": "Enable/disable the check-ins extension"
+    },
+    "defaultTimezone": {
+      "label": "Default Timezone",
+      "help": "IANA timezone for new members (e.g., America/New_York)"
+    },
+    "defaultCheckInTime": {
+      "label": "Default Check-in Time",
+      "help": "24-hour format time for daily check-ins (e.g., 17:00)"
+    },
+    "reminderDelayMinutes": {
+      "label": "Reminder Delay (minutes)",
+      "help": "Minutes to wait before sending reminder",
+      "advanced": true
+    },
+    "abandonAfterMinutes": {
+      "label": "Abandon After (minutes)",
+      "help": "Minutes after which to abandon incomplete check-in",
+      "advanced": true
+    }
+  },
+  "configSchema": {
+    "type": "object",
+    "additionalProperties": false,
+    "properties": {
+      "enabled": {
+        "type": "boolean"
+      },
+      "defaultTimezone": {
+        "type": "string"
+      },
+      "defaultCheckInTime": {
+        "type": "string",
+        "pattern": "^([01]?[0-9]|2[0-3]):[0-5][0-9]$"
+      },
+      "reminderDelayMinutes": {
+        "type": "integer",
+        "minimum": 1
+      },
+      "abandonAfterMinutes": {
+        "type": "integer",
+        "minimum": 1
+      }
+    }
+  }
+}
--- a/extensions/checkins/index.ts
+++ b/extensions/checkins/index.ts
@ -0,0 +1,295 @@
+/**
+ * Check-ins Extension Entry Point
+ *
+ * Provides team standup check-ins via Discord DM.
+ * This plugin manages the storage lifecycle and registers team management tools.
+ */
+
+import type { ClawdbotPluginApi, ClawdbotConfig } from "clawdbot/plugin-sdk";
+import { z } from "zod";
+
+import { createStorage, type CheckinsStorage } from "./src/storage.js";
+import type { CheckinsConfig, DiscordGuildConfig } from "./src/types.js";
+
+// Tool imports
+import { createTeamCreateTool } from "./src/tools/team-create.js";
+import { createTeamDeleteTool } from "./src/tools/team-delete.js";
+import { createTeamListTool } from "./src/tools/team-list.js";
+import { createMemberAddTool } from "./src/tools/member-add.js";
+import { createMemberRemoveTool } from "./src/tools/member-remove.js";
+import { createMemberListTool } from "./src/tools/member-list.js";
+import { createMemberTimezoneTool } from "./src/tools/member-timezone.js";
+import { createVacationTool } from "./src/tools/vacation.js";
+
+// DM handler import
+import { handleDmResponse, triggerCheckIn } from "./src/dm-handler.js";
+
+// Scheduler and cleanup imports
+import { scheduleAllMembers, buildCheckInCronJob, getUnscheduleJobId } from "./src/scheduler.js";
+import { buildCleanupCronJobs, cleanupExpiredConversations } from "./src/cleanup.js";
+
+// ─────────────────────────────────────────────────────────────────────────────
+// Config Schema
+// ─────────────────────────────────────────────────────────────────────────────
+
+/**
+ * Zod schema for plugin configuration.
+ * Matches the config defined in clawdbot.plugin.json.
+ */
+const CheckinsConfigSchema = z.object({
+  enabled: z.boolean().default(true),
+  defaultTimezone: z.string().default("America/New_York"),
+  defaultCheckInTime: z
+    .string()
+    .regex(/^([01]?[0-9]|2[0-3]):[0-5][0-9]$/, "Invalid time format (HH:MM)")
+    .default("17:00"),
+  reminderDelayMinutes: z.number().int().min(1).default(60),
+  abandonAfterMinutes: z.number().int().min(1).default(120),
+});
+
+/**
+ * Config schema wrapper with parse method for plugin API compatibility.
+ */
+const checkinsConfigSchema = {
+  parse(value: unknown): CheckinsConfig {
+    const raw =
+      value && typeof value === "object" && !Array.isArray(value)
+        ? (value as Record<string, unknown>)
+        : {};
+    return CheckinsConfigSchema.parse(raw);
+  },
+  uiHints: {
+    enabled: {
+      label: "Enabled",
+      help: "Enable or disable the check-ins extension",
+    },
+    defaultTimezone: {
+      label: "Default Timezone",
+      help: "IANA timezone for new team members (e.g., America/New_York)",
+    },
+    defaultCheckInTime: {
+      label: "Default Check-in Time",
+      help: "Default time for check-in prompts (24-hour format, e.g., 17:00)",
+    },
+    reminderDelayMinutes: {
+      label: "Reminder Delay (minutes)",
+      help: "Minutes to wait before sending a reminder for incomplete check-ins",
+      advanced: true,
+    },
+    abandonAfterMinutes: {
+      label: "Abandon After (minutes)",
+      help: "Minutes after which to abandon incomplete check-in conversations",
+      advanced: true,
+    },
+  },
+};
+
+// ─────────────────────────────────────────────────────────────────────────────
+// Helper Functions
+// ─────────────────────────────────────────────────────────────────────────────
+
+/**
+ * Extract Discord user ID from event.from field.
+ * Handles formats like "discord:user:123456", "user:123456", or just "123456".
+ */
+function extractDiscordUserId(from: string): string | null {
+  const match = from.match(/(?:discord:)?(?:user:)?(\d+)/);
+  return match ? match[1] : null;
+}
+
+// ─────────────────────────────────────────────────────────────────────────────
+// Plugin Definition
+// ─────────────────────────────────────────────────────────────────────────────
+
+const checkinsPlugin = {
+  id: "checkins",
+  name: "Team Check-ins",
+  description: "Manage team standup check-ins via Discord DM",
+  configSchema: checkinsConfigSchema,
+
+  register(api: ClawdbotPluginApi) {
+    const cfg = checkinsConfigSchema.parse(api.pluginConfig);
+
+    // Resolve database path in state directory
+    const stateDir = api.runtime?.state?.resolveStateDir?.() ?? process.env.HOME + "/.clawdbot";
+    const dbPath = `${stateDir}/checkins.db`;
+
+    // Create storage instance (not initialized until service starts)
+    let storage: CheckinsStorage | null = null;
+
+    // Store clawdbot config reference for accessing Discord guilds
+    let clawdbotConfig: ClawdbotConfig | null = null;
+
+    // Getter for Discord config from clawdbot.json
+    const getDiscordConfig = (): { guilds?: Record<string, DiscordGuildConfig> } | undefined => {
+      if (!clawdbotConfig) {
+        // Try to load config if not cached
+        try {
+          clawdbotConfig = api.runtime?.config?.loadConfig?.() ?? null;
+        } catch {
+          return undefined;
+        }
+      }
+      const discord = clawdbotConfig?.channels?.discord;
+      if (!discord || typeof discord !== "object") return undefined;
+      return discord as { guilds?: Record<string, DiscordGuildConfig> };
+    };
+
+    // Register service for lifecycle management
+    api.registerService({
+      id: "checkins",
+      start: async () => {
+        if (!cfg.enabled) {
+          api.logger.info("[checkins] Extension disabled");
+          return;
+        }
+
+        api.logger.info("[checkins] Starting service...");
+
+        // Create and initialize storage
+        storage = createStorage(dbPath, cfg);
+        storage.init();
+
+        api.logger.info(`[checkins] Database initialized at ${dbPath}`);
+      },
+      stop: async () => {
+        api.logger.info("[checkins] Stopping service...");
+
+        // Close database connection
+        if (storage) {
+          storage.close();
+          storage = null;
+        }
+
+        api.logger.info("[checkins] Database closed");
+      },
+    });
+
+    // Register team management tools (Phase 2)
+    api.registerTool(
+      () => {
+        if (!storage) return null;
+        return [
+          createTeamCreateTool(storage, getDiscordConfig),
+          createTeamDeleteTool(storage, getDiscordConfig),
+          createTeamListTool(storage, getDiscordConfig),
+          createMemberAddTool(storage, getDiscordConfig),
+          createMemberRemoveTool(storage, getDiscordConfig),
+          createMemberListTool(storage, getDiscordConfig),
+          createMemberTimezoneTool(storage, getDiscordConfig),
+          createVacationTool(storage, getDiscordConfig),
+        ];
+      },
+      {
+        names: [
+          "checkins_team_create",
+          "checkins_team_delete",
+          "checkins_team_list",
+          "checkins_member_add",
+          "checkins_member_remove",
+          "checkins_member_list",
+          "checkins_member_timezone",
+          "checkins_vacation",
+        ],
+      },
+    );
+
+    // Register gateway methods for cron job management (Phase 3)
+    api.registerGatewayMethod("checkins.getCronJobs", async () => {
+      if (!storage) return { jobs: [] };
+      const memberJobs = scheduleAllMembers(storage);
+      const cleanupJobs = buildCleanupCronJobs(storage);
+      return { jobs: [...memberJobs, ...cleanupJobs] };
+    });
+
+    api.registerGatewayMethod("checkins.scheduleMember", async (params) => {
+      if (!storage) return { success: false, error: "Storage not initialized" };
+      const { memberId, teamId } = params as { memberId: string; teamId: string };
+      const member = storage.getMember(memberId);
+      const team = storage.getTeam(teamId);
+      if (!member || !team) return { success: false, error: "Member or team not found" };
+      const job = buildCheckInCronJob(member, team);
+      return { success: true, job };
+    });
+
+    api.registerGatewayMethod("checkins.unscheduleMember", async (params) => {
+      const { memberId } = params as { memberId: string };
+      return { success: true, jobId: getUnscheduleJobId(memberId) };
+    });
+
+    // Register gateway_start hook to log scheduling info (Phase 3)
+    api.on("gateway_start", async () => {
+      if (!storage) return;
+      const memberJobs = scheduleAllMembers(storage);
+      const cleanupJobs = buildCleanupCronJobs(storage);
+      api.logger.info(`[checkins] Ready: ${memberJobs.length} member schedules, ${cleanupJobs.length} cleanup jobs`);
+    });
+
+    // Register before_message_dispatch hook for DM handling (Phase 3)
+    // This hook can intercept messages before they reach the agent
+    api.on("before_message_dispatch", async (event, context) => {
+      api.logger.info(`[checkins] before_message_dispatch: channelId=${context.channelId}, from=${event.from}, senderId=${event.metadata?.senderId}, content=${event.content.slice(0, 50)}`);
+
+      // Only process Discord channels for DM handling
+      if (!context.channelId?.startsWith("discord")) {
+        api.logger.info(`[checkins] Skipping: not a discord channel`);
+        return;
+      }
+
+      // Only handle if storage is initialized
+      if (!storage) {
+        api.logger.info(`[checkins] Skipping: storage not initialized`);
+        return;
+      }
+
+      // Extract Discord user ID:
+      // - For channel messages: use event.metadata.senderId (from is discord:channel:{channelId})
+      // - For DMs: extract from event.from (discord:{userId})
+      const senderIdFromMeta = event.metadata?.senderId;
+      const discordUserId =
+        (typeof senderIdFromMeta === "string" ? senderIdFromMeta : null) ??
+        extractDiscordUserId(event.from);
+      if (!discordUserId) {
+        api.logger.info(`[checkins] Skipping: could not extract discordUserId from from=${event.from} or senderId=${event.metadata?.senderId}`);
+        return;
+      }
+
+      api.logger.info(`[checkins] Calling handleDmResponse for user ${discordUserId}`);
+
+      // Handle DM response (returns true if message was handled)
+      const handled = await handleDmResponse(storage, discordUserId, event.content, context.accountId);
+      api.logger.info(`[checkins] handleDmResponse returned: ${handled}`);
+
+      if (handled) {
+        return { handled: true };
+      }
+    });
+
+    // Register message_received hook for system events from cron jobs (Phase 3)
+    api.on("message_received", async (event, context) => {
+      // Handle system messages from cron jobs
+      if (event.content.startsWith("[system] checkins:trigger:")) {
+        const parts = event.content.replace("[system] checkins:trigger:", "").split(":");
+        const [memberId, teamId] = parts;
+        if (memberId && teamId && storage) {
+          await triggerCheckIn(storage, memberId, teamId, context.accountId);
+        }
+        return;
+      }
+
+      if (event.content.startsWith("[system] checkins:cleanup:")) {
+        const timezone = event.content.replace("[system] checkins:cleanup:", "");
+        if (timezone && storage) {
+          const count = cleanupExpiredConversations(storage, timezone);
+          api.logger.info(`[checkins] Cleaned up ${count} expired conversations for ${timezone}`);
+        }
+        return;
+      }
+    });
+
+    // Log registration
+    api.logger.info(`[checkins] Plugin registered (enabled: ${cfg.enabled})`);
+  },
+};
+
+export default checkinsPlugin;
--- a/extensions/checkins/package.json
+++ b/extensions/checkins/package.json
@ -0,0 +1,24 @@
+{
+  "name": "@clawdbot/checkins",
+  "version": "2026.1.25",
+  "type": "module",
+  "description": "Team check-in management for Discord",
+  "scripts": {
+    "build": "esbuild index.ts --bundle --platform=node --format=esm --outfile=dist/index.js --external:clawdbot --external:clawdbot/* --packages=external"
+  },
+  "devDependencies": {
+    "esbuild": "^0.25.0"
+  },
+  "dependencies": {
+    "@sinclair/typebox": "0.34.47",
+    "chrono-node": "^2.9.0",
+    "discord-api-types": "^0.37.119",
+    "timezone-search": "^0.1.5",
+    "zod": "^4.3.6"
+  },
+  "clawdbot": {
+    "extensions": [
+      "./dist/index.js"
+    ]
+  }
+}
--- a/extensions/checkins/src/cleanup.ts
+++ b/extensions/checkins/src/cleanup.ts
@ -0,0 +1,84 @@
+/**
+ * Midnight cleanup for expired check-in conversations.
+ * Runs at 00:05 in each unique timezone to clean up incomplete check-ins.
+ */
+
+import type { CronJobCreate } from "../../../src/cron/types.js";
+import type { CheckinsStorage } from "./storage.js";
+
+/**
+ * Get consistent cleanup job ID for a timezone.
+ * @param timezone - IANA timezone string (e.g., "America/New_York")
+ * @returns Job ID string (slashes replaced with dashes)
+ */
+export function getCleanupJobId(timezone: string): string {
+  return `checkins-cleanup-${timezone.replace(/\//g, "-")}`;
+}
+
+/**
+ * Clean up expired check-in conversations for a specific timezone.
+ * Silently deletes conversation state without notifying members.
+ *
+ * @param storage - Storage instance
+ * @param timezone - Timezone to clean up (IANA format)
+ * @returns Count of deleted conversations
+ */
+export function cleanupExpiredConversations(storage: CheckinsStorage, timezone: string): number {
+  let deletedCount = 0;
+
+  // Get all active conversations
+  const conversations = storage.listActiveConversations();
+
+  // Filter to this timezone and delete
+  for (const conv of conversations) {
+    const member = storage.getMember(conv.memberId);
+    if (member && member.schedule.timezone === timezone) {
+      storage.deleteConversationState(conv.memberId);
+      deletedCount++;
+    }
+  }
+
+  return deletedCount;
+}
+
+/**
+ * Build cron job configurations for midnight cleanup across all timezones.
+ * Creates one cleanup job per unique timezone found in members.
+ *
+ * @param storage - Storage instance
+ * @returns Array of cleanup cron job configurations
+ */
+export function buildCleanupCronJobs(storage: CheckinsStorage): CronJobCreate[] {
+  // Collect unique timezones from all members
+  const timezones = new Set<string>();
+
+  for (const team of storage.getAllTeams()) {
+    for (const member of storage.listMembers(team.id)) {
+      timezones.add(member.schedule.timezone);
+    }
+  }
+
+  // Build cleanup job for each timezone
+  const jobs: CronJobCreate[] = [];
+  for (const tz of timezones) {
+    jobs.push({
+      name: `Midnight cleanup: ${tz}`,
+      description: "Clean up expired check-in conversations",
+      enabled: true,
+      schedule: {
+        kind: "cron",
+        expr: "5 0 * * *", // 00:05 (5 minutes past midnight per RESEARCH.md)
+        tz,
+      },
+      sessionTarget: "isolated",
+      wakeMode: "now",
+      payload: {
+        kind: "agentTurn",
+        message: `[system] checkins:cleanup:${tz}`,
+        deliver: false,
+      },
+    });
+  }
+
+  return jobs;
+}
--- a/extensions/checkins/src/conversation.ts
+++ b/extensions/checkins/src/conversation.ts
@ -0,0 +1,105 @@
+/**
+ * Conversation state machine for multi-question check-in flows.
+ */
+
+import type { CheckinsStorage } from "./storage.js";
+import type { Checkin, ConversationState } from "./types.js";
+import { isSkipResponse } from "./questions.js";
+
+/**
+ * Initiate a new check-in conversation for a member.
+ * @param storage - Storage instance
+ * @param memberId - Member UUID
+ * @param teamId - Team UUID
+ * @returns New conversation state at question 1
+ */
+export function initiateCheckIn(
+  storage: CheckinsStorage,
+  memberId: string,
+  teamId: string,
+): ConversationState {
+  const now = Date.now();
+  const state: ConversationState = {
+    memberId,
+    teamId,
+    currentQuestion: 1,
+    answers: {},
+    startedAt: now,
+    lastActivityAt: now,
+    reminderSent: false,
+  };
+
+  storage.saveConversationState(state);
+  return state;
+}
+
+/**
+ * Advance the conversation with a user's answer.
+ * @param storage - Storage instance
+ * @param memberId - Member UUID
+ * @param answer - User's answer text
+ * @returns Either next question or completed check-in
+ */
+export function advanceConversation(
+  storage: CheckinsStorage,
+  memberId: string,
+  answer: string,
+): { done: false; nextQuestion: 2 | 3 } | { done: true; checkin: Checkin } {
+  const state = storage.getConversationState(memberId);
+  if (!state) {
+    throw new Error("No active conversation");
+  }
+
+  const now = Date.now();
+
+  // Handle based on current question
+  if (state.currentQuestion === 1) {
+    // Q1: What did you accomplish today?
+    state.answers.yesterday = answer;
+    state.currentQuestion = 2;
+    state.lastActivityAt = now;
+    storage.saveConversationState(state);
+    return { done: false, nextQuestion: 2 };
+  } else if (state.currentQuestion === 2) {
+    // Q2: What will you do next?
+    state.answers.today = answer;
+    state.currentQuestion = 3;
+    state.lastActivityAt = now;
+    storage.saveConversationState(state);
+    return { done: false, nextQuestion: 3 };
+  } else {
+    // Q3: Any blockers?
+    const blockers = isSkipResponse(answer) ? null : answer;
+    state.answers.blockers = blockers ?? undefined;
+    state.lastActivityAt = now;
+
+    // Complete the check-in
+    const checkin = completeCheckIn(storage, state);
+    return { done: true, checkin };
+  }
+}
+
+/**
+ * Complete a check-in and save it to storage.
+ * @param storage - Storage instance
+ * @param state - Current conversation state
+ * @returns Saved check-in record
+ */
+export function completeCheckIn(
+  storage: CheckinsStorage,
+  state: ConversationState,
+): Checkin {
+  // Save checkin record
+  const checkin = storage.saveCheckin({
+    memberId: state.memberId,
+    teamId: state.teamId,
+    yesterday: state.answers.yesterday!,
+    today: state.answers.today!,
+    blockers: state.answers.blockers,
+  });
+
+  // Delete conversation state
+  storage.deleteConversationState(state.memberId);
+
+  return checkin;
+}
--- a/extensions/checkins/src/dm-handler.ts
+++ b/extensions/checkins/src/dm-handler.ts
@ -0,0 +1,315 @@
+/**
+ * DM response handling and check-in triggering for Discord conversations.
+ */
+
+import type { CheckinsStorage, Member, Team } from "./storage.js";
+import { initiateCheckIn, advanceConversation } from "./conversation.js";
+import { formatCheckInPost, formatConfirmation } from "./formatter.js";
+import { getQuestion } from "./questions.js";
+import { sendMessageDiscord } from "clawdbot/plugin-sdk";
+
+/**
+ * Get the current day-of-week (0=Sunday, 6=Saturday) in a specific timezone.
+ * @param timezone - IANA timezone string
+ * @returns Day of week number (0-6, where 0 is Sunday)
+ */
+function getDayOfWeekInTimezone(timezone: string): number {
+  const formatter = new Intl.DateTimeFormat("en-US", {
+    weekday: "short",
+    timeZone: timezone,
+  });
+  const dayStr = formatter.format(new Date()); // "Sun", "Mon", "Tue", etc.
+  const days: Record<string, number> = {
+    Sun: 0,
+    Mon: 1,
+    Tue: 2,
+    Wed: 3,
+    Thu: 4,
+    Fri: 5,
+    Sat: 6,
+  };
+  return days[dayStr] ?? 1; // Default to Monday if parse fails
+}
+
+/**
+ * Get the start of the current day (midnight) in a specific timezone as a UTC timestamp.
+ * @param timezone - IANA timezone string
+ * @returns UTC timestamp of midnight in that timezone
+ */
+function getStartOfDayInTimezone(timezone: string): number {
+  const now = new Date();
+  const formatter = new Intl.DateTimeFormat("en-US", {
+    timeZone: timezone,
+    year: "numeric",
+    month: "2-digit",
+    day: "2-digit",
+  });
+  const parts = formatter.formatToParts(now);
+  const year = parts.find((p) => p.type === "year")?.value ?? "2026";
+  const month = parts.find((p) => p.type === "month")?.value ?? "01";
+  const day = parts.find((p) => p.type === "day")?.value ?? "01";
+
+  // Create a date string and parse it in the target timezone
+  const dateStr = `${year}-${month}-${day}T00:00:00`;
+  const midnightLocal = new Date(dateStr);
+
+  // Calculate the offset for the timezone
+  const utcFormatter = new Intl.DateTimeFormat("en-US", {
+    timeZone: timezone,
+    hour: "numeric",
+    minute: "numeric",
+    hour12: false,
+  });
+  const nowInTz = utcFormatter.format(now);
+  const [hours, minutes] = nowInTz.split(":").map(Number);
+  const nowUtc = now.getUTCHours() * 60 + now.getUTCMinutes();
+  const nowTz = hours * 60 + minutes;
+  const offsetMinutes = nowTz - nowUtc;
+
+  // Adjust midnight to UTC
+  return midnightLocal.getTime() - offsetMinutes * 60 * 1000;
+}
+
+/**
+ * Find a member by their Discord user ID across all teams.
+ * @param storage - Storage instance
+ * @param discordUserId - Discord user ID
+ * @returns Member and team if found, null otherwise
+ */
+export function findMemberByDiscordUserId(
+  storage: CheckinsStorage,
+  discordUserId: string,
+): { member: Member; team: Team } | null {
+  for (const team of storage.getAllTeams()) {
+    const member = storage.getMemberByDiscordId(team.id, discordUserId);
+    if (member) {
+      return { member, team };
+    }
+  }
+  return null;
+}
+
+/**
+ * Trigger a check-in for a member (called by scheduler).
+ * Handles vacation status and weekend skipping in member's timezone.
+ *
+ * @param storage - Storage instance
+ * @param memberId - Member UUID
+ * @param teamId - Team UUID
+ * @param discordAccountId - Optional Discord account ID for sending
+ */
+export async function triggerCheckIn(
+  storage: CheckinsStorage,
+  memberId: string,
+  teamId: string,
+  discordAccountId?: string,
+): Promise<void> {
+  const member = storage.getMember(memberId);
+  if (!member) {
+    // Member was deleted, skip silently
+    return;
+  }
+
+  // Check vacation status
+  if (member.vacationUntil && member.vacationUntil > Date.now()) {
+    // Member is on vacation, skip silently
+    return;
+  }
+
+  // Check weekend skip (if enabled, check in member's timezone)
+  if (member.schedule.skipWeekends) {
+    const dayOfWeek = getDayOfWeekInTimezone(member.schedule.timezone);
+    if (dayOfWeek === 0 || dayOfWeek === 6) {
+      // Saturday or Sunday in member's timezone, skip silently
+      return;
+    }
+  }
+
+  // Check if there's already an active conversation (e.g., manual check-in in progress)
+  const existingConversation = storage.getConversationState(memberId);
+  if (existingConversation) {
+    // Already in a check-in conversation, skip
+    return;
+  }
+
+  // Check if member already checked in today (in their timezone)
+  const startOfDay = getStartOfDayInTimezone(member.schedule.timezone);
+  const todaysCheckins = storage.listCheckins({
+    memberId,
+    teamId,
+    since: startOfDay,
+  });
+  if (todaysCheckins.length > 0) {
+    // Already checked in today, skip scheduled check-in
+    return;
+  }
+
+  // Initiate conversation state
+  initiateCheckIn(storage, memberId, teamId);
+
+  // Send first question via DM
+  try {
+    await sendMessageDiscord(`user:${member.discordUserId}`, getQuestion(1), {
+      accountId: discordAccountId,
+    });
+  } catch (err) {
+    // Log error but don't crash
+    console.error(`[checkins] Failed to send DM to user ${member.discordUserId}:`, err);
+  }
+}
+
+/**
+ * Check if a message is a manual check-in trigger.
+ * Recognizes variations like "checkin", "check in", "standup", "start checkin", etc.
+ */
+function isManualCheckInTrigger(text: string): boolean {
+  const normalized = text.toLowerCase().trim();
+  const triggers = [
+    "checkin",
+    "check in",
+    "check-in",
+    "standup",
+    "stand up",
+    "stand-up",
+    "start checkin",
+    "start check-in",
+    "start standup",
+    "begin checkin",
+    "begin standup",
+    "do checkin",
+    "do standup",
+    "manual checkin",
+    "submit standup",
+  ];
+  return triggers.some((t) => normalized === t || normalized.startsWith(t + " "));
+}
+
+/**
+ * Handle a DM response from a member and advance the check-in conversation.
+ * Also handles manual check-in triggers like "checkin" or "standup".
+ *
+ * @param storage - Storage instance
+ * @param discordUserId - Discord user ID who sent the message
+ * @param messageText - Message text content
+ * @param discordAccountId - Optional Discord account ID for sending
+ * @returns true if the message was handled, false otherwise
+ */
+export async function handleDmResponse(
+  storage: CheckinsStorage,
+  discordUserId: string,
+  messageText: string,
+  discordAccountId?: string,
+): Promise<boolean> {
+  // Find member by Discord user ID
+  const found = findMemberByDiscordUserId(storage, discordUserId);
+  if (!found) {
+    // Not a team member, ignore DM
+    return false;
+  }
+
+  // Check for active conversation
+  const conversationState = storage.getConversationState(found.member.id);
+
+  // If no active conversation, check for manual check-in trigger
+  if (!conversationState) {
+    if (isManualCheckInTrigger(messageText)) {
+      // Start a manual check-in
+      await startManualCheckIn(storage, found.member, found.team, discordAccountId);
+      return true;
+    }
+    // Not a trigger and no active conversation, ignore
+    return false;
+  }
+
+  // Get team for channel posting
+  const team = storage.getTeam(found.team.id);
+  if (!team) {
+    // Team was deleted, cleanup conversation and return
+    storage.deleteConversationState(found.member.id);
+    return false;
+  }
+
+  // Advance conversation with user's answer
+  const result = advanceConversation(storage, found.member.id, messageText);
+
+  try {
+    if (!result.done) {
+      // More questions to go, send next question
+      await sendMessageDiscord(`user:${discordUserId}`, getQuestion(result.nextQuestion), {
+        accountId: discordAccountId,
+      });
+    } else {
+      // Check-in complete, post to channel
+      const postResult = await sendMessageDiscord(
+        team.channelId ? `channel:${team.channelId}` : `discord:${team.serverId}`,
+        formatCheckInPost(found.member, result.checkin),
+        { accountId: discordAccountId },
+      );
+
+      // Mark as posted
+      storage.markPosted(result.checkin.id);
+
+      // Send confirmation to user
+      await sendMessageDiscord(
+        `user:${discordUserId}`,
+        formatConfirmation(postResult.channelId, postResult.messageId),
+        { accountId: discordAccountId },
+      );
+    }
+  } catch (err) {
+    // Log error but don't crash
+    console.error(`[checkins] Failed to send message during check-in flow:`, err);
+  }
+
+  return true;
+}
+
+/**
+ * Start a manual check-in for a member.
+ * Called when a member DMs a trigger like "checkin" or "standup".
+ *
+ * @param storage - Storage instance
+ * @param member - Member initiating the check-in
+ * @param team - Team the member belongs to
+ * @param discordAccountId - Optional Discord account ID for sending
+ */
+async function startManualCheckIn(
+  storage: CheckinsStorage,
+  member: Member,
+  team: Team,
+  discordAccountId?: string,
+): Promise<void> {
+  // Check if member is on vacation
+  if (member.vacationUntil && member.vacationUntil > Date.now()) {
+    const endDate = new Date(member.vacationUntil);
+    const formattedDate = endDate.toLocaleDateString("en-US", {
+      weekday: "long",
+      month: "long",
+      day: "numeric",
+    });
+    try {
+      await sendMessageDiscord(
+        `user:${member.discordUserId}`,
+        `You're currently on vacation until ${formattedDate}. End your vacation first if you want to check in.`,
+        { accountId: discordAccountId },
+      );
+    } catch (err) {
+      console.error(`[checkins] Failed to send vacation notice:`, err);
+    }
+    return;
+  }
+
+  // Initiate conversation state
+  initiateCheckIn(storage, member.id, team.id);
+
+  // Send first question
+  try {
+    await sendMessageDiscord(
+      `user:${member.discordUserId}`,
+      `Starting your check-in for ${team.name}!\n\n${getQuestion(1)}`,
+      { accountId: discordAccountId },
+    );
+  } catch (err) {
+    console.error(`[checkins] Failed to send manual check-in prompt:`, err);
+  }
+}
--- a/extensions/checkins/src/formatter.ts
+++ b/extensions/checkins/src/formatter.ts
@ -0,0 +1,38 @@
+/**
+ * Message formatting for check-in posts and confirmations.
+ */
+
+import type { Checkin, Member } from "./types.js";
+
+/**
+ * Format a completed check-in for channel posting.
+ * @param member - Member who submitted the check-in
+ * @param checkin - Completed check-in record
+ * @returns Formatted message for channel post (plain text, no embed)
+ */
+export function formatCheckInPost(member: Member, checkin: Checkin): string {
+  // Use display name if set, otherwise fallback (no Discord mention/tag)
+  const name = member.displayName ?? "Team Member";
+
+  // Build post content with newlines after each section
+  let post = `**${name}'s Check-in**\n\n`;
+  post += `**Done:**\n${checkin.yesterday}\n\n`;
+  post += `**Next:**\n${checkin.today}`;
+
+  // Include blockers line only if present
+  if (checkin.blockers) {
+    post += `\n\n**🚧 Blockers:**\n${checkin.blockers}`;
+  }
+
+  return post;
+}
+
+/**
+ * Format a confirmation message after posting to channel.
+ * @param channelId - Discord channel ID where check-in was posted
+ * @param messageId - Discord message ID (currently unused, for future enhancement)
+ * @returns Confirmation message
+ */
+export function formatConfirmation(channelId: string, messageId: string): string {
+  return `Posted to <#${channelId}>!`;
+}
--- a/extensions/checkins/src/permissions.ts
+++ b/extensions/checkins/src/permissions.ts
@ -0,0 +1,45 @@
+/**
+ * Discord permission checking for the check-ins extension.
+ */
+
+import { PermissionFlagsBits } from "discord-api-types/v10";
+import type { APIRole } from "discord-api-types/v10";
+import { fetchMemberInfoDiscord, fetchRoleInfoDiscord } from "clawdbot/plugin-sdk";
+
+/**
+ * Check if a Discord user has Administrator permission in a guild.
+ *
+ * @param params.guildId - Discord server/guild ID
+ * @param params.userId - Discord user ID to check
+ * @param params.accountId - Optional Discord account ID for multi-account setups
+ * @returns true if user has Administrator permission
+ */
+export async function isDiscordAdmin(params: {
+  guildId: string;
+  userId: string;
+  accountId?: string;
+}): Promise<boolean> {
+  const { guildId, userId, accountId } = params;
+
+  // Fetch member info and guild roles in parallel
+  const opts = accountId ? { accountId } : {};
+  const [member, roles] = await Promise.all([
+    fetchMemberInfoDiscord(guildId, userId, opts),
+    fetchRoleInfoDiscord(guildId, opts),
+  ]);
+
+  // Build role permission map
+  const rolesById = new Map<string, APIRole>(roles.map((r) => [r.id, r]));
+
+  // Calculate total permissions from member's roles
+  let permissions = 0n;
+  for (const roleId of member.roles ?? []) {
+    const role = rolesById.get(roleId);
+    if (role?.permissions) {
+      permissions |= BigInt(role.permissions);
+    }
+  }
+
+  // Check Administrator bit (value 8)
+  return (permissions & PermissionFlagsBits.Administrator) !== 0n;
+}
--- a/extensions/checkins/src/questions.ts
+++ b/extensions/checkins/src/questions.ts
@ -0,0 +1,62 @@
+/**
+ * Question content and skip detection for check-in conversations.
+ */
+
+/**
+ * Fixed question content for the 3-question check-in flow.
+ */
+export const QUESTIONS = {
+  1: "What did you accomplish today?",
+  2: "What will you do next?",
+  3: "Any blockers or anything to handover?",
+} as const;
+
+/**
+ * Get question text by question number.
+ * @param questionNumber - Question number (1, 2, or 3)
+ * @returns Question text
+ */
+export function getQuestion(questionNumber: 1 | 2 | 3): string {
+  return QUESTIONS[questionNumber];
+}
+
+/**
+ * Detect if a response indicates the user wants to skip Q3 (no blockers).
+ * @param text - User's response text
+ * @returns true if skip intent detected
+ */
+export function isSkipResponse(text: string): boolean {
+  // Normalize input
+  const normalized = text.toLowerCase().trim();
+
+  // Skip keywords
+  const skipKeywords = [
+    "skip",
+    "none",
+    "no",
+    "nope",
+    "nothing",
+    "n/a",
+    "na",
+    "no blockers",
+    "no blocker",
+    "-",
+  ];
+
+  // Check if input matches exact keyword or keyword followed by space/punctuation
+  for (const keyword of skipKeywords) {
+    // Exact match
+    if (normalized === keyword) {
+      return true;
+    }
+
+    // Match keyword followed by space or punctuation
+    if (normalized.startsWith(keyword + " ") ||
+        normalized.startsWith(keyword + ".") ||
+        normalized.startsWith(keyword + "!")) {
+      return true;
+    }
+  }
+
+  return false;
+}
--- a/extensions/checkins/src/scheduler.ts
+++ b/extensions/checkins/src/scheduler.ts
@ -0,0 +1,81 @@
+/**
+ * Cron job scheduler for check-in triggers.
+ * Manages cron job configurations for individual member check-ins.
+ */
+
+import type { CronJobCreate } from "../../../src/cron/types.js";
+import type { CheckinsStorage, Member, Team } from "./storage.js";
+
+/**
+ * Convert "HH:MM" time string to cron expression.
+ * @param timeStr - Time in 24-hour format (e.g., "17:00")
+ * @returns Cron expression (e.g., "0 17 * * *")
+ */
+export function convertTimeToCronExpr(timeStr: string): string {
+  const [hour, minute] = timeStr.split(":");
+  return `${minute} ${hour} * * *`;
+}
+
+/**
+ * Get consistent cron job ID for a member.
+ * @param memberId - Member UUID
+ * @returns Job ID string
+ */
+export function getCheckInJobId(memberId: string): string {
+  return `checkins-trigger-${memberId}`;
+}
+
+/**
+ * Build cron job configuration for a member's check-in.
+ * @param member - Member entity
+ * @param team - Team entity
+ * @returns CronJobCreate configuration
+ */
+export function buildCheckInCronJob(member: Member, team: Team): CronJobCreate {
+  return {
+    name: `Check-in: ${member.displayName ?? member.discordUserId}`,
+    description: `Daily check-in for team ${team.name}`,
+    enabled: true,
+    schedule: {
+      kind: "cron",
+      expr: convertTimeToCronExpr(member.schedule.checkInTime),
+      tz: member.schedule.timezone,
+    },
+    sessionTarget: "isolated",
+    wakeMode: "now",
+    payload: {
+      kind: "agentTurn",
+      message: `[system] checkins:trigger:${member.id}:${team.id}`,
+      deliver: false,
+    },
+  };
+}
+
+/**
+ * Build cron job configurations for all members across all teams.
+ * Used during gateway startup to schedule all check-ins.
+ *
+ * @param storage - Storage instance
+ * @returns Array of cron job configurations
+ */
+export function scheduleAllMembers(storage: CheckinsStorage): CronJobCreate[] {
+  const jobs: CronJobCreate[] = [];
+
+  // Get all teams and their members
+  for (const team of storage.getAllTeams()) {
+    for (const member of storage.listMembers(team.id)) {
+      jobs.push(buildCheckInCronJob(member, team));
+    }
+  }
+
+  return jobs;
+}
+
+/**
+ * Get the job ID for unscheduling a member's check-in.
+ * @param memberId - Member UUID
+ * @returns Job ID to remove
+ */
+export function getUnscheduleJobId(memberId: string): string {
+  return getCheckInJobId(memberId);
+}
--- a/extensions/checkins/src/storage.ts
+++ b/extensions/checkins/src/storage.ts
@ -0,0 +1,667 @@
+/**
+ * SQLite storage module for the check-ins extension.
+ * Uses Node 22+ built-in node:sqlite for persistence.
+ */
+
+import { randomUUID } from "node:crypto";
+import fs from "node:fs";
+import path from "node:path";
+
+import type {
+  Checkin,
+  CheckinsConfig,
+  ConversationState,
+  Member,
+  MemberSchedule,
+  Team,
+} from "./types.js";
+
+// Re-export types for consumers
+export type { Checkin, ConversationState, Member, MemberSchedule, Team };
+
+/**
+ * Storage interface for check-ins data.
+ * All methods are synchronous (using DatabaseSync).
+ */
+export interface CheckinsStorage {
+  /** Initialize the database (create tables, open connection) */
+  init(): void;
+  /** Close the database connection */
+  close(): void;
+
+  // ─────────────────────────────────────────────────────────────────────────
+  // Teams
+  // ─────────────────────────────────────────────────────────────────────────
+
+  /** Create a new team */
+  createTeam(params: {
+    serverId: string;
+    name: string;
+    channelId?: string;
+    discordAccountId?: string;
+  }): Team;
+
+  /** Get a team by ID */
+  getTeam(id: string): Team | null;
+
+  /** Get a team by name within a server */
+  getTeamByName(serverId: string, name: string): Team | null;
+
+  /** List all teams in a server */
+  listTeams(serverId: string): Team[];
+
+  /** Update a team's properties */
+  updateTeam(
+    id: string,
+    updates: Partial<Pick<Team, "name" | "channelId" | "discordAccountId">>,
+  ): boolean;
+
+  /** Delete a team (cascades to members and checkins) */
+  deleteTeam(id: string): boolean;
+
+  /** List all teams across all servers (for scheduler bootstrap and cross-team member lookup) */
+  getAllTeams(): Team[];
+
+  // ─────────────────────────────────────────────────────────────────────────
+  // Members
+  // ─────────────────────────────────────────────────────────────────────────
+
+  /** Add a member to a team */
+  addMember(params: {
+    teamId: string;
+    discordUserId: string;
+    displayName?: string;
+    schedule?: Partial<MemberSchedule>;
+  }): Member;
+
+  /** Get a member by ID */
+  getMember(id: string): Member | null;
+
+  /** Get a member by Discord user ID within a team */
+  getMemberByDiscordId(teamId: string, discordUserId: string): Member | null;
+
+  /** List all members of a team */
+  listMembers(teamId: string): Member[];
+
+  /** Update a member's properties */
+  updateMember(
+    id: string,
+    updates: Partial<Pick<Member, "displayName" | "schedule" | "vacationUntil">>,
+  ): boolean;
+
+  /** Remove a member from a team */
+  removeMember(id: string): boolean;
+
+  // ─────────────────────────────────────────────────────────────────────────
+  // Check-ins
+  // ─────────────────────────────────────────────────────────────────────────
+
+  /** Save a completed check-in */
+  saveCheckin(params: {
+    memberId: string;
+    teamId: string;
+    yesterday: string;
+    today: string;
+    blockers?: string;
+  }): Checkin;
+
+  /** Get a check-in by ID */
+  getCheckin(id: string): Checkin | null;
+
+  /** List check-ins with optional filters */
+  listCheckins(params: {
+    teamId?: string;
+    memberId?: string;
+    since?: number;
+    until?: number;
+  }): Checkin[];
+
+  /** Mark a check-in as posted to the channel */
+  markPosted(checkinId: string): boolean;
+
+  // ─────────────────────────────────────────────────────────────────────────
+  // Conversation State
+  // ─────────────────────────────────────────────────────────────────────────
+
+  /** Get active conversation state for a member */
+  getConversationState(memberId: string): ConversationState | null;
+
+  /** Save/update conversation state */
+  saveConversationState(state: ConversationState): void;
+
+  /** Delete conversation state (on completion or timeout) */
+  deleteConversationState(memberId: string): boolean;
+
+  /** List all active conversations (for scheduler/timeout checks) */
+  listActiveConversations(): ConversationState[];
+}
+
+// ─────────────────────────────────────────────────────────────────────────────
+// Schema Definition
+// ─────────────────────────────────────────────────────────────────────────────
+
+const SCHEMA_SQL = `
+-- Enable foreign keys
+PRAGMA foreign_keys = ON;
+
+-- Teams table
+CREATE TABLE IF NOT EXISTS teams (
+  id TEXT PRIMARY KEY,
+  server_id TEXT NOT NULL,
+  name TEXT NOT NULL,
+  channel_id TEXT,
+  discord_account_id TEXT,
+  created_at INTEGER NOT NULL,
+  UNIQUE(server_id, name)
+);
+CREATE INDEX IF NOT EXISTS idx_teams_server ON teams(server_id);
+
+-- Members table
+CREATE TABLE IF NOT EXISTS members (
+  id TEXT PRIMARY KEY,
+  team_id TEXT NOT NULL REFERENCES teams(id) ON DELETE CASCADE,
+  discord_user_id TEXT NOT NULL,
+  display_name TEXT,
+  check_in_time TEXT NOT NULL DEFAULT '17:00',
+  timezone TEXT NOT NULL DEFAULT 'America/New_York',
+  skip_weekends INTEGER NOT NULL DEFAULT 1,
+  vacation_until INTEGER,
+  created_at INTEGER NOT NULL,
+  UNIQUE(team_id, discord_user_id)
+);
+CREATE INDEX IF NOT EXISTS idx_members_team ON members(team_id);
+CREATE INDEX IF NOT EXISTS idx_members_discord ON members(discord_user_id);
+
+-- Checkins table
+CREATE TABLE IF NOT EXISTS checkins (
+  id TEXT PRIMARY KEY,
+  member_id TEXT NOT NULL REFERENCES members(id) ON DELETE CASCADE,
+  team_id TEXT NOT NULL REFERENCES teams(id) ON DELETE CASCADE,
+  yesterday TEXT NOT NULL,
+  today TEXT NOT NULL,
+  blockers TEXT,
+  submitted_at INTEGER NOT NULL,
+  posted_to_channel INTEGER NOT NULL DEFAULT 0
+);
+CREATE INDEX IF NOT EXISTS idx_checkins_member ON checkins(member_id);
+CREATE INDEX IF NOT EXISTS idx_checkins_team ON checkins(team_id);
+CREATE INDEX IF NOT EXISTS idx_checkins_submitted ON checkins(submitted_at);
+
+-- Conversation state table (for active check-in flows)
+CREATE TABLE IF NOT EXISTS conversation_state (
+  member_id TEXT PRIMARY KEY REFERENCES members(id) ON DELETE CASCADE,
+  team_id TEXT NOT NULL REFERENCES teams(id) ON DELETE CASCADE,
+  current_question INTEGER NOT NULL,
+  answer_yesterday TEXT,
+  answer_today TEXT,
+  answer_blockers TEXT,
+  started_at INTEGER NOT NULL,
+  last_activity_at INTEGER NOT NULL,
+  reminder_sent INTEGER NOT NULL DEFAULT 0
+);
+`;
+
+// ─────────────────────────────────────────────────────────────────────────────
+// Row Types (raw database rows)
+// ─────────────────────────────────────────────────────────────────────────────
+
+type TeamRow = {
+  id: string;
+  server_id: string;
+  name: string;
+  channel_id: string | null;
+  discord_account_id: string | null;
+  created_at: number;
+};
+
+type MemberRow = {
+  id: string;
+  team_id: string;
+  discord_user_id: string;
+  display_name: string | null;
+  check_in_time: string;
+  timezone: string;
+  skip_weekends: number;
+  vacation_until: number | null;
+  created_at: number;
+};
+
+type CheckinRow = {
+  id: string;
+  member_id: string;
+  team_id: string;
+  yesterday: string;
+  today: string;
+  blockers: string | null;
+  submitted_at: number;
+  posted_to_channel: number;
+};
+
+type ConversationStateRow = {
+  member_id: string;
+  team_id: string;
+  current_question: number;
+  answer_yesterday: string | null;
+  answer_today: string | null;
+  answer_blockers: string | null;
+  started_at: number;
+  last_activity_at: number;
+  reminder_sent: number;
+};
+
+// ─────────────────────────────────────────────────────────────────────────────
+// Row to Entity Conversions
+// ─────────────────────────────────────────────────────────────────────────────
+
+function rowToTeam(row: TeamRow): Team {
+  return {
+    id: row.id,
+    serverId: row.server_id,
+    name: row.name,
+    channelId: row.channel_id,
+    discordAccountId: row.discord_account_id,
+    createdAt: row.created_at,
+  };
+}
+
+function rowToMember(row: MemberRow): Member {
+  return {
+    id: row.id,
+    teamId: row.team_id,
+    discordUserId: row.discord_user_id,
+    displayName: row.display_name,
+    schedule: {
+      checkInTime: row.check_in_time,
+      timezone: row.timezone,
+      skipWeekends: row.skip_weekends === 1,
+    },
+    vacationUntil: row.vacation_until,
+    createdAt: row.created_at,
+  };
+}
+
+function rowToCheckin(row: CheckinRow): Checkin {
+  return {
+    id: row.id,
+    memberId: row.member_id,
+    teamId: row.team_id,
+    yesterday: row.yesterday,
+    today: row.today,
+    blockers: row.blockers,
+    submittedAt: row.submitted_at,
+    postedToChannel: row.posted_to_channel === 1,
+  };
+}
+
+function rowToConversationState(row: ConversationStateRow): ConversationState {
+  return {
+    memberId: row.member_id,
+    teamId: row.team_id,
+    currentQuestion: row.current_question as 1 | 2 | 3,
+    answers: {
+      yesterday: row.answer_yesterday ?? undefined,
+      today: row.answer_today ?? undefined,
+      blockers: row.answer_blockers ?? undefined,
+    },
+    startedAt: row.started_at,
+    lastActivityAt: row.last_activity_at,
+    reminderSent: row.reminder_sent === 1,
+  };
+}
+
+// ─────────────────────────────────────────────────────────────────────────────
+// Storage Implementation
+// ─────────────────────────────────────────────────────────────────────────────
+
+/**
+ * Create a storage instance for the check-ins extension.
+ *
+ * @param dbPath - Path to the SQLite database file
+ * @param config - Optional plugin configuration for defaults
+ * @returns CheckinsStorage instance
+ */
+export function createStorage(dbPath: string, config?: CheckinsConfig): CheckinsStorage {
+  // Lazy-load node:sqlite to avoid issues on Node < 22
+  type DatabaseSync = import("node:sqlite").DatabaseSync;
+  let db: DatabaseSync | null = null;
+
+  // Default schedule values from config or hardcoded defaults
+  const defaultTimezone = config?.defaultTimezone ?? "America/New_York";
+  const defaultCheckInTime = config?.defaultCheckInTime ?? "17:00";
+
+  function getDb(): DatabaseSync {
+    if (!db) {
+      throw new Error("Database not initialized. Call init() first.");
+    }
+    return db;
+  }
+
+  function ensureDir(dirPath: string): void {
+    if (!fs.existsSync(dirPath)) {
+      fs.mkdirSync(dirPath, { recursive: true });
+    }
+  }
+
+  return {
+    init() {
+      if (db) return; // Already initialized
+
+      // Ensure parent directory exists
+      ensureDir(path.dirname(dbPath));
+
+      // Dynamically require node:sqlite (Node 22+)
+      // eslint-disable-next-line @typescript-eslint/no-require-imports
+      const { DatabaseSync } = require("node:sqlite") as typeof import("node:sqlite");
+      db = new DatabaseSync(dbPath);
+
+      // Enable foreign keys and create schema
+      db.exec("PRAGMA foreign_keys = ON;");
+
+      // Execute schema (CREATE IF NOT EXISTS is safe to run multiple times)
+      for (const statement of SCHEMA_SQL.split(";").filter((s) => s.trim())) {
+        db.exec(statement + ";");
+      }
+    },
+
+    close() {
+      if (db) {
+        db.close();
+        db = null;
+      }
+    },
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Teams
+    // ─────────────────────────────────────────────────────────────────────────
+
+    createTeam({ serverId, name, channelId, discordAccountId }) {
+      const d = getDb();
+      const id = randomUUID();
+      const now = Date.now();
+
+      const stmt = d.prepare(`
+        INSERT INTO teams (id, server_id, name, channel_id, discord_account_id, created_at)
+        VALUES (?, ?, ?, ?, ?, ?)
+      `);
+      stmt.run(id, serverId, name, channelId ?? null, discordAccountId ?? null, now);
+
+      return {
+        id,
+        serverId,
+        name,
+        channelId: channelId ?? null,
+        discordAccountId: discordAccountId ?? null,
+        createdAt: now,
+      };
+    },
+
+    getTeam(id) {
+      const d = getDb();
+      const stmt = d.prepare("SELECT * FROM teams WHERE id = ?");
+      const row = stmt.get(id) as TeamRow | undefined;
+      return row ? rowToTeam(row) : null;
+    },
+
+    getTeamByName(serverId, name) {
+      const d = getDb();
+      const stmt = d.prepare("SELECT * FROM teams WHERE server_id = ? AND name = ?");
+      const row = stmt.get(serverId, name) as TeamRow | undefined;
+      return row ? rowToTeam(row) : null;
+    },
+
+    listTeams(serverId) {
+      const d = getDb();
+      const stmt = d.prepare("SELECT * FROM teams WHERE server_id = ? ORDER BY name");
+      const rows = stmt.all(serverId) as TeamRow[];
+      return rows.map(rowToTeam);
+    },
+
+    updateTeam(id, updates) {
+      const d = getDb();
+      const sets: string[] = [];
+      const params: unknown[] = [];
+
+      if (updates.name !== undefined) {
+        sets.push("name = ?");
+        params.push(updates.name);
+      }
+      if (updates.channelId !== undefined) {
+        sets.push("channel_id = ?");
+        params.push(updates.channelId);
+      }
+      if (updates.discordAccountId !== undefined) {
+        sets.push("discord_account_id = ?");
+        params.push(updates.discordAccountId);
+      }
+
+      if (sets.length === 0) return false;
+
+      params.push(id);
+      const stmt = d.prepare(`UPDATE teams SET ${sets.join(", ")} WHERE id = ?`);
+      const result = stmt.run(...params);
+      return result.changes > 0;
+    },
+
+    deleteTeam(id) {
+      const d = getDb();
+      const stmt = d.prepare("DELETE FROM teams WHERE id = ?");
+      const result = stmt.run(id);
+      return result.changes > 0;
+    },
+
+    getAllTeams() {
+      const d = getDb();
+      const stmt = d.prepare("SELECT * FROM teams ORDER BY name");
+      const rows = stmt.all() as TeamRow[];
+      return rows.map(rowToTeam);
+    },
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Members
+    // ─────────────────────────────────────────────────────────────────────────
+
+    addMember({ teamId, discordUserId, displayName, schedule }) {
+      const d = getDb();
+      const id = randomUUID();
+      const now = Date.now();
+
+      const checkInTime = schedule?.checkInTime ?? defaultCheckInTime;
+      const timezone = schedule?.timezone ?? defaultTimezone;
+      const skipWeekends = schedule?.skipWeekends ?? true;
+
+      const stmt = d.prepare(`
+        INSERT INTO members (id, team_id, discord_user_id, display_name, check_in_time, timezone, skip_weekends, created_at)
+        VALUES (?, ?, ?, ?, ?, ?, ?, ?)
+      `);
+      stmt.run(id, teamId, discordUserId, displayName ?? null, checkInTime, timezone, skipWeekends ? 1 : 0, now);
+
+      return {
+        id,
+        teamId,
+        discordUserId,
+        displayName: displayName ?? null,
+        schedule: { checkInTime, timezone, skipWeekends },
+        vacationUntil: null,
+        createdAt: now,
+      };
+    },
+
+    getMember(id) {
+      const d = getDb();
+      const stmt = d.prepare("SELECT * FROM members WHERE id = ?");
+      const row = stmt.get(id) as MemberRow | undefined;
+      return row ? rowToMember(row) : null;
+    },
+
+    getMemberByDiscordId(teamId, discordUserId) {
+      const d = getDb();
+      const stmt = d.prepare("SELECT * FROM members WHERE team_id = ? AND discord_user_id = ?");
+      const row = stmt.get(teamId, discordUserId) as MemberRow | undefined;
+      return row ? rowToMember(row) : null;
+    },
+
+    listMembers(teamId) {
+      const d = getDb();
+      const stmt = d.prepare("SELECT * FROM members WHERE team_id = ? ORDER BY display_name, discord_user_id");
+      const rows = stmt.all(teamId) as MemberRow[];
+      return rows.map(rowToMember);
+    },
+
+    updateMember(id, updates) {
+      const d = getDb();
+      const sets: string[] = [];
+      const params: unknown[] = [];
+
+      if (updates.displayName !== undefined) {
+        sets.push("display_name = ?");
+        params.push(updates.displayName);
+      }
+      if (updates.vacationUntil !== undefined) {
+        sets.push("vacation_until = ?");
+        params.push(updates.vacationUntil);
+      }
+      if (updates.schedule !== undefined) {
+        if (updates.schedule.checkInTime !== undefined) {
+          sets.push("check_in_time = ?");
+          params.push(updates.schedule.checkInTime);
+        }
+        if (updates.schedule.timezone !== undefined) {
+          sets.push("timezone = ?");
+          params.push(updates.schedule.timezone);
+        }
+        if (updates.schedule.skipWeekends !== undefined) {
+          sets.push("skip_weekends = ?");
+          params.push(updates.schedule.skipWeekends ? 1 : 0);
+        }
+      }
+
+      if (sets.length === 0) return false;
+
+      params.push(id);
+      const stmt = d.prepare(`UPDATE members SET ${sets.join(", ")} WHERE id = ?`);
+      const result = stmt.run(...params);
+      return result.changes > 0;
+    },
+
+    removeMember(id) {
+      const d = getDb();
+      const stmt = d.prepare("DELETE FROM members WHERE id = ?");
+      const result = stmt.run(id);
+      return result.changes > 0;
+    },
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Check-ins
+    // ─────────────────────────────────────────────────────────────────────────
+
+    saveCheckin({ memberId, teamId, yesterday, today, blockers }) {
+      const d = getDb();
+      const id = randomUUID();
+      const now = Date.now();
+
+      const stmt = d.prepare(`
+        INSERT INTO checkins (id, member_id, team_id, yesterday, today, blockers, submitted_at)
+        VALUES (?, ?, ?, ?, ?, ?, ?)
+      `);
+      stmt.run(id, memberId, teamId, yesterday, today, blockers ?? null, now);
+
+      return {
+        id,
+        memberId,
+        teamId,
+        yesterday,
+        today,
+        blockers: blockers ?? null,
+        submittedAt: now,
+        postedToChannel: false,
+      };
+    },
+
+    getCheckin(id) {
+      const d = getDb();
+      const stmt = d.prepare("SELECT * FROM checkins WHERE id = ?");
+      const row = stmt.get(id) as CheckinRow | undefined;
+      return row ? rowToCheckin(row) : null;
+    },
+
+    listCheckins({ teamId, memberId, since, until }) {
+      const d = getDb();
+      const conditions: string[] = [];
+      const params: unknown[] = [];
+
+      if (teamId !== undefined) {
+        conditions.push("team_id = ?");
+        params.push(teamId);
+      }
+      if (memberId !== undefined) {
+        conditions.push("member_id = ?");
+        params.push(memberId);
+      }
+      if (since !== undefined) {
+        conditions.push("submitted_at >= ?");
+        params.push(since);
+      }
+      if (until !== undefined) {
+        conditions.push("submitted_at <= ?");
+        params.push(until);
+      }
+
+      const whereClause = conditions.length > 0 ? `WHERE ${conditions.join(" AND ")}` : "";
+      const stmt = d.prepare(`SELECT * FROM checkins ${whereClause} ORDER BY submitted_at DESC`);
+      const rows = stmt.all(...params) as CheckinRow[];
+      return rows.map(rowToCheckin);
+    },
+
+    markPosted(checkinId) {
+      const d = getDb();
+      const stmt = d.prepare("UPDATE checkins SET posted_to_channel = 1 WHERE id = ?");
+      const result = stmt.run(checkinId);
+      return result.changes > 0;
+    },
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // Conversation State
+    // ─────────────────────────────────────────────────────────────────────────
+
+    getConversationState(memberId) {
+      const d = getDb();
+      const stmt = d.prepare("SELECT * FROM conversation_state WHERE member_id = ?");
+      const row = stmt.get(memberId) as ConversationStateRow | undefined;
+      return row ? rowToConversationState(row) : null;
+    },
+
+    saveConversationState(state) {
+      const d = getDb();
+      const stmt = d.prepare(`
+        INSERT OR REPLACE INTO conversation_state
+          (member_id, team_id, current_question, answer_yesterday, answer_today, answer_blockers, started_at, last_activity_at, reminder_sent)
+        VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)
+      `);
+      stmt.run(
+        state.memberId,
+        state.teamId,
+        state.currentQuestion,
+        state.answers.yesterday ?? null,
+        state.answers.today ?? null,
+        state.answers.blockers ?? null,
+        state.startedAt,
+        state.lastActivityAt,
+        state.reminderSent ? 1 : 0,
+      );
+    },
+
+    deleteConversationState(memberId) {
+      const d = getDb();
+      const stmt = d.prepare("DELETE FROM conversation_state WHERE member_id = ?");
+      const result = stmt.run(memberId);
+      return result.changes > 0;
+    },
+
+    listActiveConversations() {
+      const d = getDb();
+      const stmt = d.prepare("SELECT * FROM conversation_state ORDER BY last_activity_at");
+      const rows = stmt.all() as ConversationStateRow[];
+      return rows.map(rowToConversationState);
+    },
+  };
+}
--- a/extensions/checkins/src/timezone.ts
+++ b/extensions/checkins/src/timezone.ts
@ -0,0 +1,67 @@
+/**
+ * Timezone normalization and natural language date parsing for the check-ins extension.
+ */
+
+import { searchTimezone } from "timezone-search";
+import * as chrono from "chrono-node";
+
+/**
+ * Normalize flexible timezone input to an IANA identifier.
+ *
+ * Accepts:
+ * - IANA identifiers: "America/New_York" -> "America/New_York"
+ * - Abbreviations: "EST" -> "America/New_York"
+ * - City names: "New York" -> "America/New_York"
+ *
+ * @param input - Flexible timezone input
+ * @returns IANA timezone identifier or null if not found
+ */
+export function normalizeTimezone(input: string): string | null {
+  const trimmed = input.trim();
+  if (!trimmed) return null;
+
+  // Try exact IANA match first
+  try {
+    Intl.DateTimeFormat(undefined, { timeZone: trimmed });
+    return trimmed; // Valid IANA identifier
+  } catch {
+    // Not a valid IANA identifier, try fuzzy search
+  }
+
+  // Fuzzy search for abbreviations and city names
+  const results = searchTimezone(trimmed);
+  if (results.length === 0) {
+    return null;
+  }
+
+  // Return best match IANA identifier
+  return results[0].iana;
+}
+
+/**
+ * Parse natural language date for vacation end time.
+ *
+ * Accepts:
+ * - Relative: "until Friday", "next Monday"
+ * - Absolute: "Jan 30", "2026-02-15"
+ * - Natural: "end of month", "in 2 weeks"
+ *
+ * @param input - Natural language date string
+ * @param referenceDate - Reference date for relative parsing (defaults to now)
+ * @returns Unix timestamp (ms) or null if parsing failed
+ */
+export function parseVacationEnd(input: string, referenceDate?: Date): number | null {
+  const trimmed = input.trim();
+  if (!trimmed) return null;
+
+  const ref = referenceDate ?? new Date();
+
+  // Parse natural language date
+  const result = chrono.parseDate(trimmed, ref);
+  if (!result) {
+    return null;
+  }
+
+  // Return Unix timestamp (ms)
+  return result.getTime();
+}
--- a/extensions/checkins/src/tools/member-add.ts
+++ b/extensions/checkins/src/tools/member-add.ts
@ -0,0 +1,173 @@
+/**
+ * Member add tool for the check-ins extension.
+ * Uses configured guilds from clawdbot.json.
+ */
+
+import { Type } from "@sinclair/typebox";
+
+import type { CheckinsStorage } from "../storage.js";
+import type { DiscordGuildConfig } from "../types.js";
+import { normalizeTimezone } from "../timezone.js";
+
+/**
+ * Create the member-add tool.
+ *
+ * @param storage - CheckinsStorage instance
+ * @param getDiscordConfig - Function to get Discord config from clawdbot.json
+ */
+export function createMemberAddTool(
+  storage: CheckinsStorage,
+  getDiscordConfig?: () => { guilds?: Record<string, DiscordGuildConfig> } | undefined,
+) {
+  return {
+    name: "checkins_member_add",
+    description:
+      "Add a member to a team. Uses the Discord server configured in clawdbot.json. " +
+      "Timezone is required. One team per member per server.",
+    parameters: Type.Object({
+      targetUserId: Type.String({ description: "Discord user ID to add (numeric ID)" }),
+      teamName: Type.String({ description: "Team name to add member to" }),
+      timezone: Type.String({ description: "Member timezone (EST, America/New_York, Eastern, etc.)" }),
+      guildSlug: Type.Optional(
+        Type.String({
+          description: "Guild slug if multiple servers configured (optional if only one server)",
+        }),
+      ),
+    }),
+    async execute(_id: string, params: Record<string, unknown>) {
+      const targetUserId = String(params.targetUserId).replace(/\D/g, ""); // Extract numeric ID
+      const teamName = String(params.teamName).trim();
+      const timezoneInput = String(params.timezone).trim();
+      const guildSlug = params.guildSlug ? String(params.guildSlug).trim() : undefined;
+
+      // Validate target user ID
+      if (!targetUserId) {
+        return {
+          content: [{ type: "text", text: "Invalid user ID. Please provide the Discord user ID." }],
+          isError: true,
+        };
+      }
+
+      // Get Discord config
+      const discordConfig = getDiscordConfig?.();
+      const guilds = discordConfig?.guilds;
+
+      if (!guilds || Object.keys(guilds).length === 0) {
+        return {
+          content: [
+            {
+              type: "text",
+              text: "No Discord servers configured. Add guilds to channels.discord.guilds in clawdbot.json",
+            },
+          ],
+          isError: true,
+        };
+      }
+
+      // Find the target guild
+      const guildEntries = Object.entries(guilds);
+      let targetGuildId: string;
+      let targetGuild: DiscordGuildConfig;
+
+      if (guildEntries.length === 1) {
+        [targetGuildId, targetGuild] = guildEntries[0];
+      } else if (guildSlug) {
+        const match = guildEntries.find(([, g]) => g.slug === guildSlug);
+        if (!match) {
+          const availableSlugs = guildEntries
+            .map(([, g]) => g.slug)
+            .filter(Boolean)
+            .join(", ");
+          return {
+            content: [
+              {
+                type: "text",
+                text: `Guild with slug "${guildSlug}" not found. Available: ${availableSlugs || "none"}`,
+              },
+            ],
+            isError: true,
+          };
+        }
+        [targetGuildId, targetGuild] = match;
+      } else {
+        const availableSlugs = guildEntries
+          .map(([, g]) => g.slug)
+          .filter(Boolean)
+          .join(", ");
+        return {
+          content: [
+            {
+              type: "text",
+              text: `Multiple Discord servers configured. Please specify guildSlug. Available: ${availableSlugs || "use guild IDs"}`,
+            },
+          ],
+          isError: true,
+        };
+      }
+
+      // Normalize timezone
+      const timezone = normalizeTimezone(timezoneInput);
+      if (!timezone) {
+        return {
+          content: [
+            {
+              type: "text",
+              text: `Unknown timezone: "${timezoneInput}". Try "America/New_York", "EST", or "Eastern".`,
+            },
+          ],
+          isError: true,
+        };
+      }
+
+      // Find target team
+      const team = storage.getTeamByName(targetGuildId, teamName);
+      if (!team) {
+        const teams = storage.listTeams(targetGuildId);
+        const available = teams.map((t) => t.name).join(", ") || "none";
+        return {
+          content: [{ type: "text", text: `Team not found. Available teams: ${available}` }],
+          isError: true,
+        };
+      }
+
+      // Check if already on this team
+      const existingOnTeam = storage.getMemberByDiscordId(team.id, targetUserId);
+      if (existingOnTeam) {
+        return {
+          content: [{ type: "text", text: `<@${targetUserId}> is already on ${teamName}` }],
+          isError: true,
+        };
+      }
+
+      // One team per member per server - check if on another team
+      const allTeams = storage.listTeams(targetGuildId);
+      let removedFromTeam: string | null = null;
+      for (const t of allTeams) {
+        const existingMember = storage.getMemberByDiscordId(t.id, targetUserId);
+        if (existingMember) {
+          storage.removeMember(existingMember.id);
+          removedFromTeam = t.name;
+          break;
+        }
+      }
+
+      // Add to team
+      storage.addMember({
+        teamId: team.id,
+        discordUserId: targetUserId,
+        schedule: { timezone, checkInTime: "17:00", skipWeekends: true },
+      });
+
+      // Build response
+      const guildLabel = targetGuild.slug || targetGuildId;
+      let message = `Added <@${targetUserId}> to ${teamName} in ${guildLabel}, timezone ${timezone}`;
+      if (removedFromTeam) {
+        message += ` (removed from ${removedFromTeam})`;
+      }
+
+      return {
+        content: [{ type: "text", text: message }],
+      };
+    },
+  };
+}
--- a/extensions/checkins/src/tools/member-list.ts
+++ b/extensions/checkins/src/tools/member-list.ts
@ -0,0 +1,164 @@
+/**
+ * Member listing tool for the check-ins extension.
+ */
+
+import { Type } from "@sinclair/typebox";
+
+import type { CheckinsStorage } from "../storage.js";
+import type { DiscordGuildConfig } from "../types.js";
+
+/**
+ * Create the member-list tool.
+ *
+ * @param storage - CheckinsStorage instance
+ * @param getDiscordConfig - Function to get Discord config from clawdbot.json
+ */
+export function createMemberListTool(
+  storage: CheckinsStorage,
+  getDiscordConfig?: () => { guilds?: Record<string, DiscordGuildConfig> } | undefined,
+) {
+  return {
+    name: "checkins_member_list",
+    description:
+      "List all members of a check-in team. Shows Discord user IDs, display names, timezones, and check-in times. " +
+      "Specify team by name. If multiple Discord servers are configured, also specify guildSlug.",
+    parameters: Type.Object({
+      teamName: Type.String({ description: "Name of the team to list members for" }),
+      guildSlug: Type.Optional(
+        Type.String({
+          description: "Guild slug if multiple servers configured (optional if only one server)",
+        }),
+      ),
+    }),
+    async execute(_id: string, params: Record<string, unknown>) {
+      const teamName = String(params.teamName).trim();
+      const guildSlug = params.guildSlug ? String(params.guildSlug).trim() : undefined;
+
+      if (!teamName) {
+        return {
+          content: [{ type: "text", text: "Team name is required" }],
+          isError: true,
+        };
+      }
+
+      // Get Discord config
+      const discordConfig = getDiscordConfig?.();
+      const guilds = discordConfig?.guilds;
+
+      if (!guilds || Object.keys(guilds).length === 0) {
+        return {
+          content: [
+            {
+              type: "text",
+              text: "No Discord servers configured. Add guilds to channels.discord.guilds in clawdbot.json",
+            },
+          ],
+          isError: true,
+        };
+      }
+
+      // Find the target guild
+      const guildEntries = Object.entries(guilds);
+      let targetGuildId: string;
+      let targetGuild: DiscordGuildConfig;
+
+      if (guildEntries.length === 1) {
+        // Only one guild configured, use it
+        [targetGuildId, targetGuild] = guildEntries[0];
+      } else if (guildSlug) {
+        // Multiple guilds, find by slug
+        const match = guildEntries.find(([, g]) => g.slug === guildSlug);
+        if (!match) {
+          const availableSlugs = guildEntries
+            .map(([, g]) => g.slug)
+            .filter(Boolean)
+            .join(", ");
+          return {
+            content: [
+              {
+                type: "text",
+                text: `Guild with slug "${guildSlug}" not found. Available: ${availableSlugs || "none"}`,
+              },
+            ],
+            isError: true,
+          };
+        }
+        [targetGuildId, targetGuild] = match;
+      } else {
+        // Multiple guilds, no slug specified
+        const availableSlugs = guildEntries
+          .map(([, g]) => g.slug)
+          .filter(Boolean)
+          .join(", ");
+        return {
+          content: [
+            {
+              type: "text",
+              text: `Multiple Discord servers configured. Please specify guildSlug. Available: ${availableSlugs || "use guild IDs"}`,
+            },
+          ],
+          isError: true,
+        };
+      }
+
+      // Find team by name
+      const team = storage.getTeamByName(targetGuildId, teamName);
+      if (!team) {
+        const teams = storage.listTeams(targetGuildId);
+        const availableTeams = teams.map((t) => t.name).join(", ");
+        return {
+          content: [
+            {
+              type: "text",
+              text: `Team "${teamName}" not found. Available teams: ${availableTeams || "none"}`,
+            },
+          ],
+          isError: true,
+        };
+      }
+
+      // List members
+      const members = storage.listMembers(team.id);
+
+      if (members.length === 0) {
+        return {
+          content: [
+            {
+              type: "text",
+              text: `Team "${teamName}" has no members. Use checkins_member_add to add members.`,
+            },
+          ],
+        };
+      }
+
+      // Build member list
+      const memberList = members.map((m) => ({
+        id: m.id,
+        discordUserId: m.discordUserId,
+        displayName: m.displayName,
+        timezone: m.schedule.timezone,
+        checkInTime: m.schedule.checkInTime,
+        skipWeekends: m.schedule.skipWeekends,
+        vacationUntil: m.vacationUntil ? new Date(m.vacationUntil).toISOString().split("T")[0] : null,
+      }));
+
+      const summary = memberList
+        .map((m) => {
+          const name = m.displayName || `<@${m.discordUserId}>`;
+          const vacation = m.vacationUntil ? ` (vacation until ${m.vacationUntil})` : "";
+          return `• ${name} - ${m.checkInTime} ${m.timezone}${vacation}`;
+        })
+        .join("\n");
+
+      return {
+        content: [
+          {
+            type: "text",
+            text: `Members of "${teamName}" (${members.length}):\n${summary}`,
+          },
+        ],
+        details: { members: memberList },
+      };
+    },
+  };
+}
--- a/extensions/checkins/src/tools/member-remove.ts
+++ b/extensions/checkins/src/tools/member-remove.ts
@ -0,0 +1,147 @@
+/**
+ * Member remove tool for the check-ins extension.
+ * Uses configured guilds from clawdbot.json.
+ */
+
+import { Type } from "@sinclair/typebox";
+
+import type { CheckinsStorage } from "../storage.js";
+import type { DiscordGuildConfig } from "../types.js";
+
+/**
+ * Create the member-remove tool.
+ *
+ * @param storage - CheckinsStorage instance
+ * @param getDiscordConfig - Function to get Discord config from clawdbot.json
+ */
+export function createMemberRemoveTool(
+  storage: CheckinsStorage,
+  getDiscordConfig?: () => { guilds?: Record<string, DiscordGuildConfig> } | undefined,
+) {
+  return {
+    name: "checkins_member_remove",
+    description:
+      "Remove a member from a team. Uses the Discord server configured in clawdbot.json. " +
+      "Requires confirmation.",
+    parameters: Type.Object({
+      targetUserId: Type.String({ description: "Discord user ID to remove (numeric ID)" }),
+      teamName: Type.String({ description: "Team name to remove member from" }),
+      confirm: Type.Optional(Type.Boolean({ description: "Set to true to confirm removal" })),
+      guildSlug: Type.Optional(
+        Type.String({
+          description: "Guild slug if multiple servers configured (optional if only one server)",
+        }),
+      ),
+    }),
+    async execute(_id: string, params: Record<string, unknown>) {
+      const targetUserId = String(params.targetUserId).replace(/\D/g, "");
+      const teamName = String(params.teamName).trim();
+      const confirm = params.confirm === true;
+      const guildSlug = params.guildSlug ? String(params.guildSlug).trim() : undefined;
+
+      // Validate target user ID
+      if (!targetUserId) {
+        return {
+          content: [{ type: "text", text: "Invalid user ID. Please provide the Discord user ID." }],
+          isError: true,
+        };
+      }
+
+      // Get Discord config
+      const discordConfig = getDiscordConfig?.();
+      const guilds = discordConfig?.guilds;
+
+      if (!guilds || Object.keys(guilds).length === 0) {
+        return {
+          content: [
+            {
+              type: "text",
+              text: "No Discord servers configured. Add guilds to channels.discord.guilds in clawdbot.json",
+            },
+          ],
+          isError: true,
+        };
+      }
+
+      // Find the target guild
+      const guildEntries = Object.entries(guilds);
+      let targetGuildId: string;
+
+      if (guildEntries.length === 1) {
+        [targetGuildId] = guildEntries[0];
+      } else if (guildSlug) {
+        const match = guildEntries.find(([, g]) => g.slug === guildSlug);
+        if (!match) {
+          const availableSlugs = guildEntries
+            .map(([, g]) => g.slug)
+            .filter(Boolean)
+            .join(", ");
+          return {
+            content: [
+              {
+                type: "text",
+                text: `Guild with slug "${guildSlug}" not found. Available: ${availableSlugs || "none"}`,
+              },
+            ],
+            isError: true,
+          };
+        }
+        [targetGuildId] = match;
+      } else {
+        const availableSlugs = guildEntries
+          .map(([, g]) => g.slug)
+          .filter(Boolean)
+          .join(", ");
+        return {
+          content: [
+            {
+              type: "text",
+              text: `Multiple Discord servers configured. Please specify guildSlug. Available: ${availableSlugs || "use guild IDs"}`,
+            },
+          ],
+          isError: true,
+        };
+      }
+
+      // Find team
+      const team = storage.getTeamByName(targetGuildId, teamName);
+      if (!team) {
+        const teams = storage.listTeams(targetGuildId);
+        const available = teams.map((t) => t.name).join(", ") || "none";
+        return {
+          content: [{ type: "text", text: `Team not found. Available teams: ${available}` }],
+          isError: true,
+        };
+      }
+
+      // Find member
+      const member = storage.getMemberByDiscordId(team.id, targetUserId);
+      if (!member) {
+        return {
+          content: [{ type: "text", text: `<@${targetUserId}> is not on ${teamName}` }],
+          isError: true,
+        };
+      }
+
+      // Require confirmation
+      if (!confirm) {
+        return {
+          content: [
+            {
+              type: "text",
+              text: `Are you sure you want to remove <@${targetUserId}> from ${teamName}? Set confirm=true to proceed.`,
+            },
+          ],
+          details: { requiresConfirmation: true },
+        };
+      }
+
+      // Remove member
+      storage.removeMember(member.id);
+
+      return {
+        content: [{ type: "text", text: `Removed <@${targetUserId}> from ${teamName}` }],
+      };
+    },
+  };
+}
--- a/extensions/checkins/src/tools/member-timezone.ts
+++ b/extensions/checkins/src/tools/member-timezone.ts
@ -0,0 +1,150 @@
+/**
+ * Member timezone tool for the check-ins extension.
+ * Uses configured guilds from clawdbot.json.
+ */
+
+import { Type } from "@sinclair/typebox";
+
+import type { CheckinsStorage } from "../storage.js";
+import type { DiscordGuildConfig } from "../types.js";
+import { normalizeTimezone } from "../timezone.js";
+
+/**
+ * Create the member-timezone tool.
+ *
+ * @param storage - CheckinsStorage instance
+ * @param getDiscordConfig - Function to get Discord config from clawdbot.json
+ */
+export function createMemberTimezoneTool(
+  storage: CheckinsStorage,
+  getDiscordConfig?: () => { guilds?: Record<string, DiscordGuildConfig> } | undefined,
+) {
+  return {
+    name: "checkins_member_timezone",
+    description:
+      "Update a member's timezone. Uses the Discord server configured in clawdbot.json. " +
+      "Accepts flexible formats (EST, America/New_York, Eastern).",
+    parameters: Type.Object({
+      targetUserId: Type.String({ description: "Discord user ID to update (numeric ID)" }),
+      timezone: Type.String({ description: "New timezone (EST, America/New_York, Eastern, etc.)" }),
+      guildSlug: Type.Optional(
+        Type.String({
+          description: "Guild slug if multiple servers configured (optional if only one server)",
+        }),
+      ),
+    }),
+    async execute(_id: string, params: Record<string, unknown>) {
+      const targetUserId = String(params.targetUserId).replace(/\D/g, "");
+      const timezoneInput = String(params.timezone).trim();
+      const guildSlug = params.guildSlug ? String(params.guildSlug).trim() : undefined;
+
+      // Validate target user ID
+      if (!targetUserId) {
+        return {
+          content: [{ type: "text", text: "Invalid user ID. Please provide the Discord user ID." }],
+          isError: true,
+        };
+      }
+
+      // Get Discord config
+      const discordConfig = getDiscordConfig?.();
+      const guilds = discordConfig?.guilds;
+
+      if (!guilds || Object.keys(guilds).length === 0) {
+        return {
+          content: [
+            {
+              type: "text",
+              text: "No Discord servers configured. Add guilds to channels.discord.guilds in clawdbot.json",
+            },
+          ],
+          isError: true,
+        };
+      }
+
+      // Find the target guild
+      const guildEntries = Object.entries(guilds);
+      let targetGuildId: string;
+
+      if (guildEntries.length === 1) {
+        [targetGuildId] = guildEntries[0];
+      } else if (guildSlug) {
+        const match = guildEntries.find(([, g]) => g.slug === guildSlug);
+        if (!match) {
+          const availableSlugs = guildEntries
+            .map(([, g]) => g.slug)
+            .filter(Boolean)
+            .join(", ");
+          return {
+            content: [
+              {
+                type: "text",
+                text: `Guild with slug "${guildSlug}" not found. Available: ${availableSlugs || "none"}`,
+              },
+            ],
+            isError: true,
+          };
+        }
+        [targetGuildId] = match;
+      } else {
+        const availableSlugs = guildEntries
+          .map(([, g]) => g.slug)
+          .filter(Boolean)
+          .join(", ");
+        return {
+          content: [
+            {
+              type: "text",
+              text: `Multiple Discord servers configured. Please specify guildSlug. Available: ${availableSlugs || "use guild IDs"}`,
+            },
+          ],
+          isError: true,
+        };
+      }
+
+      // Normalize timezone
+      const timezone = normalizeTimezone(timezoneInput);
+      if (!timezone) {
+        return {
+          content: [
+            {
+              type: "text",
+              text: `Unknown timezone: "${timezoneInput}". Try "America/New_York", "EST", or "Eastern".`,
+            },
+          ],
+          isError: true,
+        };
+      }
+
+      // Find member across all teams in server
+      const teams = storage.listTeams(targetGuildId);
+      let member = null;
+      let memberTeam = null;
+      for (const team of teams) {
+        member = storage.getMemberByDiscordId(team.id, targetUserId);
+        if (member) {
+          memberTeam = team;
+          break;
+        }
+      }
+
+      if (!member || !memberTeam) {
+        return {
+          content: [{ type: "text", text: `<@${targetUserId}> is not a member of any team` }],
+          isError: true,
+        };
+      }
+
+      // Update timezone
+      storage.updateMember(member.id, {
+        schedule: { ...member.schedule, timezone },
+      });
+
+      return {
+        content: [
+          { type: "text", text: `Updated <@${targetUserId}>'s timezone to ${timezone}` },
+        ],
+      };
+    },
+  };
+}
--- a/extensions/checkins/src/tools/team-create.ts
+++ b/extensions/checkins/src/tools/team-create.ts
@ -0,0 +1,178 @@
+/**
+ * Team creation tool for the check-ins extension.
+ * Uses configured guilds/channels from clawdbot.json.
+ */
+
+import { Type } from "@sinclair/typebox";
+
+import type { CheckinsStorage } from "../storage.js";
+import type { DiscordGuildConfig } from "../types.js";
+
+/**
+ * Resolve a channel reference to a channel ID from configured channels.
+ * Accepts: channel ID, channel mention (#name), or plain channel name.
+ */
+function resolveChannelFromConfig(
+  channelRef: string,
+  configuredChannels: Record<string, { allow?: boolean }>,
+): string | null {
+  // Already a numeric ID that's in the config
+  if (/^\d+$/.test(channelRef) && configuredChannels[channelRef]) {
+    return channelRef;
+  }
+
+  // For now, just check if it matches a configured channel ID
+  // Channel names aren't stored in config, so we can only match by ID
+  if (configuredChannels[channelRef]) {
+    return channelRef;
+  }
+
+  return null;
+}
+
+/**
+ * Create the team-create tool.
+ *
+ * @param storage - CheckinsStorage instance
+ * @param getDiscordConfig - Function to get Discord config from clawdbot.json
+ */
+export function createTeamCreateTool(
+  storage: CheckinsStorage,
+  getDiscordConfig?: () => { guilds?: Record<string, DiscordGuildConfig> } | undefined,
+) {
+  return {
+    name: "checkins_team_create",
+    description:
+      "Create a new team for check-ins. Uses the Discord server configured in clawdbot.json. " +
+      "If multiple servers are configured, specify which one by slug. " +
+      "Channel must be one of the configured channel IDs.",
+    parameters: Type.Object({
+      teamName: Type.String({ description: "Name for the new team" }),
+      channelId: Type.String({
+        description: "Discord channel ID for standup posts (must be a configured channel)",
+      }),
+      guildSlug: Type.Optional(
+        Type.String({
+          description: "Guild slug if multiple servers configured (optional if only one server)",
+        }),
+      ),
+    }),
+    async execute(_id: string, params: Record<string, unknown>) {
+      const teamName = String(params.teamName).trim();
+      const channelId = String(params.channelId);
+      const guildSlug = params.guildSlug ? String(params.guildSlug).trim() : undefined;
+
+      // Validate team name
+      if (!teamName) {
+        return {
+          content: [{ type: "text", text: "Team name is required" }],
+          isError: true,
+        };
+      }
+
+      // Get Discord config
+      const discordConfig = getDiscordConfig?.();
+      const guilds = discordConfig?.guilds;
+
+      if (!guilds || Object.keys(guilds).length === 0) {
+        return {
+          content: [
+            {
+              type: "text",
+              text: "No Discord servers configured. Add guilds to channels.discord.guilds in clawdbot.json",
+            },
+          ],
+          isError: true,
+        };
+      }
+
+      // Find the target guild
+      const guildEntries = Object.entries(guilds);
+      let targetGuildId: string;
+      let targetGuild: DiscordGuildConfig;
+
+      if (guildEntries.length === 1) {
+        // Only one guild configured, use it
+        [targetGuildId, targetGuild] = guildEntries[0];
+      } else if (guildSlug) {
+        // Multiple guilds, find by slug
+        const match = guildEntries.find(([, g]) => g.slug === guildSlug);
+        if (!match) {
+          const availableSlugs = guildEntries
+            .map(([, g]) => g.slug)
+            .filter(Boolean)
+            .join(", ");
+          return {
+            content: [
+              {
+                type: "text",
+                text: `Guild with slug "${guildSlug}" not found. Available: ${availableSlugs || "none"}`,
+              },
+            ],
+            isError: true,
+          };
+        }
+        [targetGuildId, targetGuild] = match;
+      } else {
+        // Multiple guilds, no slug specified
+        const availableSlugs = guildEntries
+          .map(([, g]) => g.slug)
+          .filter(Boolean)
+          .join(", ");
+        return {
+          content: [
+            {
+              type: "text",
+              text: `Multiple Discord servers configured. Please specify guildSlug. Available: ${availableSlugs || "use guild IDs"}`,
+            },
+          ],
+          isError: true,
+        };
+      }
+
+      // Validate channel is configured
+      const configuredChannels = targetGuild.channels ?? {};
+      const resolvedChannelId = resolveChannelFromConfig(channelId, configuredChannels);
+
+      if (!resolvedChannelId) {
+        const availableChannels = Object.keys(configuredChannels).join(", ");
+        return {
+          content: [
+            {
+              type: "text",
+              text: `Channel "${channelId}" is not configured for this server. Available channel IDs: ${availableChannels || "none"}`,
+            },
+          ],
+          isError: true,
+        };
+      }
+
+      // Check for duplicate team
+      const existing = storage.getTeamByName(targetGuildId, teamName);
+      if (existing) {
+        return {
+          content: [{ type: "text", text: `Team "${teamName}" already exists` }],
+          isError: true,
+        };
+      }
+
+      // Create team (no permission check needed - config access implies admin)
+      const team = storage.createTeam({
+        serverId: targetGuildId,
+        name: teamName,
+        channelId: resolvedChannelId,
+      });
+
+      const guildLabel = targetGuild.slug || targetGuildId;
+      return {
+        content: [
+          {
+            type: "text",
+            text: `Created team "${teamName}" in ${guildLabel}, standups will post to channel ${resolvedChannelId}`,
+          },
+        ],
+        details: { team },
+      };
+    },
+  };
+}
--- a/extensions/checkins/src/tools/team-delete.ts
+++ b/extensions/checkins/src/tools/team-delete.ts
@ -0,0 +1,137 @@
+/**
+ * Team deletion tool for the check-ins extension.
+ * Uses configured guilds from clawdbot.json.
+ */
+
+import { Type } from "@sinclair/typebox";
+
+import type { CheckinsStorage } from "../storage.js";
+import type { DiscordGuildConfig } from "../types.js";
+
+/**
+ * Create the team-delete tool.
+ *
+ * @param storage - CheckinsStorage instance
+ * @param getDiscordConfig - Function to get Discord config from clawdbot.json
+ */
+export function createTeamDeleteTool(
+  storage: CheckinsStorage,
+  getDiscordConfig?: () => { guilds?: Record<string, DiscordGuildConfig> } | undefined,
+) {
+  return {
+    name: "checkins_team_delete",
+    description:
+      "Delete a team. Uses the Discord server configured in clawdbot.json. " +
+      "Requires confirmation. Removes all members and check-in history.",
+    parameters: Type.Object({
+      teamName: Type.String({ description: "Team name to delete" }),
+      confirm: Type.Optional(Type.Boolean({ description: "Set to true to confirm deletion" })),
+      guildSlug: Type.Optional(
+        Type.String({
+          description: "Guild slug if multiple servers configured (optional if only one server)",
+        }),
+      ),
+    }),
+    async execute(_id: string, params: Record<string, unknown>) {
+      const teamName = String(params.teamName).trim();
+      const confirm = params.confirm === true;
+      const guildSlug = params.guildSlug ? String(params.guildSlug).trim() : undefined;
+
+      // Validate team name
+      if (!teamName) {
+        return {
+          content: [{ type: "text", text: "Team name is required" }],
+          isError: true,
+        };
+      }
+
+      // Get Discord config
+      const discordConfig = getDiscordConfig?.();
+      const guilds = discordConfig?.guilds;
+
+      if (!guilds || Object.keys(guilds).length === 0) {
+        return {
+          content: [
+            {
+              type: "text",
+              text: "No Discord servers configured. Add guilds to channels.discord.guilds in clawdbot.json",
+            },
+          ],
+          isError: true,
+        };
+      }
+
+      // Find the target guild
+      const guildEntries = Object.entries(guilds);
+      let targetGuildId: string;
+
+      if (guildEntries.length === 1) {
+        [targetGuildId] = guildEntries[0];
+      } else if (guildSlug) {
+        const match = guildEntries.find(([, g]) => g.slug === guildSlug);
+        if (!match) {
+          const availableSlugs = guildEntries
+            .map(([, g]) => g.slug)
+            .filter(Boolean)
+            .join(", ");
+          return {
+            content: [
+              {
+                type: "text",
+                text: `Guild with slug "${guildSlug}" not found. Available: ${availableSlugs || "none"}`,
+              },
+            ],
+            isError: true,
+          };
+        }
+        [targetGuildId] = match;
+      } else {
+        const availableSlugs = guildEntries
+          .map(([, g]) => g.slug)
+          .filter(Boolean)
+          .join(", ");
+        return {
+          content: [
+            {
+              type: "text",
+              text: `Multiple Discord servers configured. Please specify guildSlug. Available: ${availableSlugs || "use guild IDs"}`,
+            },
+          ],
+          isError: true,
+        };
+      }
+
+      // Find team
+      const team = storage.getTeamByName(targetGuildId, teamName);
+      if (!team) {
+        const teams = storage.listTeams(targetGuildId);
+        const available = teams.map((t) => t.name).join(", ") || "none";
+        return {
+          content: [{ type: "text", text: `Team not found. Available teams: ${available}` }],
+          isError: true,
+        };
+      }
+
+      // Require confirmation
+      if (!confirm) {
+        const members = storage.listMembers(team.id);
+        return {
+          content: [
+            {
+              type: "text",
+              text: `Are you sure you want to delete team "${teamName}"? This will remove ${members.length} member(s) and all their check-in history. Set confirm=true to proceed.`,
+            },
+          ],
+          details: { requiresConfirmation: true, memberCount: members.length },
+        };
+      }
+
+      // Delete team (cascades to members via foreign key)
+      storage.deleteTeam(team.id);
+
+      return {
+        content: [{ type: "text", text: `Deleted team "${teamName}"` }],
+      };
+    },
+  };
+}
--- a/extensions/checkins/src/tools/team-list.ts
+++ b/extensions/checkins/src/tools/team-list.ts
@ -0,0 +1,137 @@
+/**
+ * Team listing tool for the check-ins extension.
+ */
+
+import { Type } from "@sinclair/typebox";
+
+import type { CheckinsStorage } from "../storage.js";
+import type { DiscordGuildConfig } from "../types.js";
+
+/**
+ * Create the team-list tool.
+ *
+ * @param storage - CheckinsStorage instance
+ * @param getDiscordConfig - Function to get Discord config from clawdbot.json
+ */
+export function createTeamListTool(
+  storage: CheckinsStorage,
+  getDiscordConfig?: () => { guilds?: Record<string, DiscordGuildConfig> } | undefined,
+) {
+  return {
+    name: "checkins_team_list",
+    description:
+      "List all check-in teams. Shows team names, IDs, channel IDs, and member counts. " +
+      "If multiple Discord servers are configured, specify which one by slug.",
+    parameters: Type.Object({
+      guildSlug: Type.Optional(
+        Type.String({
+          description: "Guild slug if multiple servers configured (optional if only one server)",
+        }),
+      ),
+    }),
+    async execute(_id: string, params: Record<string, unknown>) {
+      const guildSlug = params.guildSlug ? String(params.guildSlug).trim() : undefined;
+
+      // Get Discord config
+      const discordConfig = getDiscordConfig?.();
+      const guilds = discordConfig?.guilds;
+
+      if (!guilds || Object.keys(guilds).length === 0) {
+        return {
+          content: [
+            {
+              type: "text",
+              text: "No Discord servers configured. Add guilds to channels.discord.guilds in clawdbot.json",
+            },
+          ],
+          isError: true,
+        };
+      }
+
+      // Find the target guild
+      const guildEntries = Object.entries(guilds);
+      let targetGuildId: string;
+      let targetGuild: DiscordGuildConfig;
+
+      if (guildEntries.length === 1) {
+        // Only one guild configured, use it
+        [targetGuildId, targetGuild] = guildEntries[0];
+      } else if (guildSlug) {
+        // Multiple guilds, find by slug
+        const match = guildEntries.find(([, g]) => g.slug === guildSlug);
+        if (!match) {
+          const availableSlugs = guildEntries
+            .map(([, g]) => g.slug)
+            .filter(Boolean)
+            .join(", ");
+          return {
+            content: [
+              {
+                type: "text",
+                text: `Guild with slug "${guildSlug}" not found. Available: ${availableSlugs || "none"}`,
+              },
+            ],
+            isError: true,
+          };
+        }
+        [targetGuildId, targetGuild] = match;
+      } else {
+        // Multiple guilds, no slug specified
+        const availableSlugs = guildEntries
+          .map(([, g]) => g.slug)
+          .filter(Boolean)
+          .join(", ");
+        return {
+          content: [
+            {
+              type: "text",
+              text: `Multiple Discord servers configured. Please specify guildSlug. Available: ${availableSlugs || "use guild IDs"}`,
+            },
+          ],
+          isError: true,
+        };
+      }
+
+      // List teams for this guild
+      const teams = storage.listTeams(targetGuildId);
+
+      if (teams.length === 0) {
+        const guildLabel = targetGuild.slug || targetGuildId;
+        return {
+          content: [
+            {
+              type: "text",
+              text: `No teams found in ${guildLabel}. Use checkins_team_create to create one.`,
+            },
+          ],
+        };
+      }
+
+      // Build team list with member counts
+      const teamList = teams.map((team) => {
+        const members = storage.listMembers(team.id);
+        return {
+          id: team.id,
+          name: team.name,
+          channelId: team.channelId,
+          memberCount: members.length,
+        };
+      });
+
+      const guildLabel = targetGuild.slug || targetGuildId;
+      const summary = teamList
+        .map((t) => `• ${t.name} (${t.memberCount} members) - channel: ${t.channelId || "none"}`)
+        .join("\n");
+
+      return {
+        content: [
+          {
+            type: "text",
+            text: `Teams in ${guildLabel}:\n${summary}`,
+          },
+        ],
+        details: { teams: teamList },
+      };
+    },
+  };
+}
--- a/extensions/checkins/src/tools/vacation.ts
+++ b/extensions/checkins/src/tools/vacation.ts
@ -0,0 +1,173 @@
+/**
+ * Vacation tool for the check-ins extension.
+ * Uses configured guilds from clawdbot.json.
+ */
+
+import { Type } from "@sinclair/typebox";
+
+import type { CheckinsStorage } from "../storage.js";
+import type { DiscordGuildConfig } from "../types.js";
+import { parseVacationEnd } from "../timezone.js";
+
+/**
+ * Create the vacation tool.
+ *
+ * @param storage - CheckinsStorage instance
+ * @param getDiscordConfig - Function to get Discord config from clawdbot.json
+ */
+export function createVacationTool(
+  storage: CheckinsStorage,
+  getDiscordConfig?: () => { guilds?: Record<string, DiscordGuildConfig> } | undefined,
+) {
+  return {
+    name: "checkins_vacation",
+    description:
+      "Set vacation mode for a team member. Uses the Discord server configured in clawdbot.json.",
+    parameters: Type.Object({
+      targetUserId: Type.String({ description: "Discord user ID to set vacation for (numeric ID)" }),
+      action: Type.Unsafe<"enable" | "disable">({
+        type: "string",
+        enum: ["enable", "disable"],
+        description: "Enable or disable vacation mode",
+      }),
+      until: Type.Optional(
+        Type.String({
+          description: "Vacation end date (natural language: 'Friday', 'Jan 30', etc.)",
+        }),
+      ),
+      guildSlug: Type.Optional(
+        Type.String({
+          description: "Guild slug if multiple servers configured (optional if only one server)",
+        }),
+      ),
+    }),
+    async execute(_id: string, params: Record<string, unknown>) {
+      const targetUserId = String(params.targetUserId).replace(/\D/g, "");
+      const action = String(params.action) as "enable" | "disable";
+      const until = params.until ? String(params.until).trim() : undefined;
+      const guildSlug = params.guildSlug ? String(params.guildSlug).trim() : undefined;
+
+      // Validate target user ID
+      if (!targetUserId) {
+        return {
+          content: [{ type: "text", text: "Invalid user ID. Please provide the Discord user ID." }],
+          isError: true,
+        };
+      }
+
+      // Get Discord config
+      const discordConfig = getDiscordConfig?.();
+      const guilds = discordConfig?.guilds;
+
+      if (!guilds || Object.keys(guilds).length === 0) {
+        return {
+          content: [
+            {
+              type: "text",
+              text: "No Discord servers configured. Add guilds to channels.discord.guilds in clawdbot.json",
+            },
+          ],
+          isError: true,
+        };
+      }
+
+      // Find the target guild
+      const guildEntries = Object.entries(guilds);
+      let targetGuildId: string;
+
+      if (guildEntries.length === 1) {
+        [targetGuildId] = guildEntries[0];
+      } else if (guildSlug) {
+        const match = guildEntries.find(([, g]) => g.slug === guildSlug);
+        if (!match) {
+          const availableSlugs = guildEntries
+            .map(([, g]) => g.slug)
+            .filter(Boolean)
+            .join(", ");
+          return {
+            content: [
+              {
+                type: "text",
+                text: `Guild with slug "${guildSlug}" not found. Available: ${availableSlugs || "none"}`,
+              },
+            ],
+            isError: true,
+          };
+        }
+        [targetGuildId] = match;
+      } else {
+        const availableSlugs = guildEntries
+          .map(([, g]) => g.slug)
+          .filter(Boolean)
+          .join(", ");
+        return {
+          content: [
+            {
+              type: "text",
+              text: `Multiple Discord servers configured. Please specify guildSlug. Available: ${availableSlugs || "use guild IDs"}`,
+            },
+          ],
+          isError: true,
+        };
+      }
+
+      // Find member by Discord user ID across all teams
+      const teams = storage.listTeams(targetGuildId);
+      let member = null;
+      for (const team of teams) {
+        member = storage.getMemberByDiscordId(team.id, targetUserId);
+        if (member) break;
+      }
+
+      if (!member) {
+        return {
+          content: [{ type: "text", text: `<@${targetUserId}> is not a member of any team` }],
+          isError: true,
+        };
+      }
+
+      if (action === "disable") {
+        storage.updateMember(member.id, { vacationUntil: null });
+        return {
+          content: [{ type: "text", text: `Vacation disabled for <@${targetUserId}>. Check-ins resume.` }],
+        };
+      }
+
+      // Enable vacation
+      let vacationUntil: number | null = null;
+      if (until) {
+        vacationUntil = parseVacationEnd(until);
+        if (!vacationUntil) {
+          return {
+            content: [
+              {
+                type: "text",
+                text: `Could not parse date: "${until}". Try "until Friday", "Jan 30", or "next Monday".`,
+              },
+            ],
+            isError: true,
+          };
+        }
+      }
+
+      storage.updateMember(member.id, { vacationUntil });
+
+      // Build response
+      let message: string;
+      if (vacationUntil) {
+        const endDate = new Date(vacationUntil);
+        message = `<@${targetUserId}> is now on vacation until ${endDate.toLocaleDateString("en-US", {
+          weekday: "long",
+          month: "long",
+          day: "numeric",
+        })}`;
+      } else {
+        message = `<@${targetUserId}> is now on vacation (indefinite)`;
+      }
+
+      return {
+        content: [{ type: "text", text: message }],
+      };
+    },
+  };
+}
--- a/extensions/checkins/src/types.ts
+++ b/extensions/checkins/src/types.ts
@ -0,0 +1,167 @@
+/**
+ * TypeScript types for the check-ins domain.
+ * Defines entities for teams, members, conversations, and check-in records.
+ */
+
+// -----------------------------------------------------------------------------
+// Team Entity
+// -----------------------------------------------------------------------------
+
+/**
+ * A team within a Discord server.
+ * Teams group members who participate in standup check-ins together.
+ */
+export type Team = {
+  /** UUID identifier */
+  id: string;
+  /** Discord server/guild ID */
+  serverId: string;
+  /** Team name, e.g., "Engineering" */
+  name: string;
+  /** Discord channel for standup posts (null if not configured) */
+  channelId: string | null;
+  /** Which Discord account to use for DMs (null for default) */
+  discordAccountId: string | null;
+  /** Creation timestamp (Unix ms) */
+  createdAt: number;
+};
+
+// -----------------------------------------------------------------------------
+// Member Scheduling
+// -----------------------------------------------------------------------------
+
+/**
+ * Per-member scheduling configuration.
+ * Controls when and how check-in prompts are sent.
+ */
+export type MemberSchedule = {
+  /** 24-hour format time for check-in, e.g., "17:00" */
+  checkInTime: string;
+  /** IANA timezone, e.g., "America/New_York" */
+  timezone: string;
+  /** Whether to skip weekend check-ins (default true) */
+  skipWeekends: boolean;
+};
+
+// -----------------------------------------------------------------------------
+// Member Entity
+// -----------------------------------------------------------------------------
+
+/**
+ * A team member who participates in check-ins.
+ * Each member belongs to one team and has their own schedule.
+ */
+export type Member = {
+  /** UUID identifier */
+  id: string;
+  /** FK to Team */
+  teamId: string;
+  /** Discord user ID */
+  discordUserId: string;
+  /** Optional display name override */
+  displayName: string | null;
+  /** Member's check-in schedule */
+  schedule: MemberSchedule;
+  /** Unix timestamp (ms) until vacation ends, null if not on vacation */
+  vacationUntil: number | null;
+  /** Creation timestamp (Unix ms) */
+  createdAt: number;
+};
+
+// -----------------------------------------------------------------------------
+// Conversation State
+// -----------------------------------------------------------------------------
+
+/**
+ * Tracks an active check-in conversation via DM.
+ * Used to manage multi-question flows and reminders.
+ */
+export type ConversationState = {
+  /** FK to Member */
+  memberId: string;
+  /** FK to Team */
+  teamId: string;
+  /** Current question number (1 = yesterday, 2 = today, 3 = blockers) */
+  currentQuestion: 1 | 2 | 3;
+  /** Accumulated answers */
+  answers: {
+    yesterday?: string;
+    today?: string;
+    blockers?: string;
+  };
+  /** When conversation started (Unix ms) */
+  startedAt: number;
+  /** Last message timestamp (Unix ms) */
+  lastActivityAt: number;
+  /** Whether the 1-hour reminder was sent */
+  reminderSent: boolean;
+};
+
+// -----------------------------------------------------------------------------
+// Check-in Record
+// -----------------------------------------------------------------------------
+
+/**
+ * A completed check-in record.
+ * Represents a member's submitted standup answers.
+ */
+export type Checkin = {
+  /** UUID identifier */
+  id: string;
+  /** FK to Member */
+  memberId: string;
+  /** FK to Team */
+  teamId: string;
+  /** Answer to "What did you do?" */
+  yesterday: string;
+  /** Answer to "What's next?" */
+  today: string;
+  /** Answer to "Any blockers?" (null if no blockers) */
+  blockers: string | null;
+  /** Submission timestamp (Unix ms) */
+  submittedAt: number;
+  /** Whether posted to the standup channel */
+  postedToChannel: boolean;
+};
+
+// -----------------------------------------------------------------------------
+// Plugin Configuration
+// -----------------------------------------------------------------------------
+
+/**
+ * Plugin configuration type.
+ * Controls global defaults for the check-ins extension.
+ */
+export type CheckinsConfig = {
+  /** Enable/disable the extension */
+  enabled: boolean;
+  /** Default timezone for new members */
+  defaultTimezone: string;
+  /** Default check-in time for new members */
+  defaultCheckInTime: string;
+  /** Minutes to wait before sending reminder */
+  reminderDelayMinutes: number;
+  /** Minutes after which to abandon incomplete check-in */
+  abandonAfterMinutes: number;
+};
+
+// -----------------------------------------------------------------------------
+// Discord Config Types (from clawdbot.json)
+// -----------------------------------------------------------------------------
+
+/**
+ * Channel configuration within a guild.
+ */
+export type DiscordChannelConfig = {
+  allow?: boolean;
+  requireMention?: boolean;
+};
+
+/**
+ * Guild configuration from channels.discord.guilds in clawdbot.json.
+ */
+export type DiscordGuildConfig = {
+  slug?: string;
+  requireMention?: boolean;
+  channels?: Record<string, DiscordChannelConfig>;
+};