feat: add tlon channel plugin

docs/channels/index.md

@@ -23,6 +23,7 @@ Text is supported everywhere; media and reactions vary by channel.
 - [Nextcloud Talk](/channels/nextcloud-talk) — Self-hosted chat via Nextcloud Talk (plugin, installed separately).
 - [Matrix](/channels/matrix) — Matrix protocol (plugin, installed separately).
 - [Nostr](/channels/nostr) — Decentralized DMs via NIP-04 (plugin, installed separately).
+- [Tlon](/channels/tlon) — Urbit-based messenger (plugin, installed separately).
 - [Zalo](/channels/zalo) — Zalo Bot API; Vietnam's popular messenger (plugin, installed separately).
 - [Zalo Personal](/channels/zalouser) — Zalo personal account via QR login (plugin, installed separately).
 - [WebChat](/web/webchat) — Gateway WebChat UI over WebSocket.

docs/channels/tlon.md

@@ -0,0 +1,133 @@
+---
+summary: "Tlon/Urbit support status, capabilities, and configuration"
+read_when:
+  - Working on Tlon/Urbit channel features
+---
+# Tlon (plugin)
+
+Tlon is a decentralized messenger built on Urbit. Clawdbot connects to your Urbit ship and can
+respond to DMs and group chat messages. Group replies require an @ mention by default and can
+be further restricted via allowlists.
+
+Status: supported via plugin. DMs, group mentions, thread replies, and text-only media fallback
+(URL appended to caption). Reactions, polls, and native media uploads are not supported.
+
+## Plugin required
+
+Tlon ships as a plugin and is not bundled with the core install.
+
+Install via CLI (npm registry):
+
+```bash
+clawdbot plugins install @clawdbot/tlon
+```
+
+Local checkout (when running from a git repo):
+
+```bash
+clawdbot plugins install ./extensions/tlon
+```
+
+Details: [Plugins](/plugin)
+
+## Setup
+
+1) Install the Tlon plugin.
+2) Gather your ship URL and login code.
+3) Configure `channels.tlon`.
+4) Restart the gateway.
+5) DM the bot or mention it in a group channel.
+
+Minimal config (single account):
+
+```json5
+{
+  channels: {
+    tlon: {
+      enabled: true,
+      ship: "~sampel-palnet",
+      url: "https://your-ship-host",
+      code: "lidlut-tabwed-pillex-ridrup"
+    }
+  }
+}
+```
+
+## Group channels
+
+Auto-discovery is enabled by default. You can also pin channels manually:
+
+```json5
+{
+  channels: {
+    tlon: {
+      groupChannels: [
+        "chat/~host-ship/general",
+        "chat/~host-ship/support"
+      ]
+    }
+  }
+}
+```
+
+Disable auto-discovery:
+
+```json5
+{
+  channels: {
+    tlon: {
+      autoDiscoverChannels: false
+    }
+  }
+}
+```
+
+## Access control
+
+DM allowlist (empty = allow all):
+
+```json5
+{
+  channels: {
+    tlon: {
+      dmAllowlist: ["~zod", "~nec"]
+    }
+  }
+}
+```
+
+Group authorization (restricted by default):
+
+```json5
+{
+  channels: {
+    tlon: {
+      defaultAuthorizedShips: ["~zod"],
+      authorization: {
+        channelRules: {
+          "chat/~host-ship/general": {
+            mode: "restricted",
+            allowedShips: ["~zod", "~nec"]
+          },
+          "chat/~host-ship/announcements": {
+            mode: "open"
+          }
+        }
+      }
+    }
+  }
+}
+```
+
+## Delivery targets (CLI/cron)
+
+Use these with `clawdbot message send` or cron delivery:
+
+- DM: `~sampel-palnet` or `dm/~sampel-palnet`
+- Group: `chat/~host-ship/channel` or `group:~host-ship/channel`
+
+## Notes
+
+- Group replies require a mention (e.g. `~your-bot-ship`) to respond.
+- Thread replies: if the inbound message is in a thread, Clawdbot replies in-thread.
+- Media: `sendMedia` falls back to text + URL (no native upload).

docs/plugin.md

@@ -145,6 +145,16 @@ Example:
 }
 ```
 
+Clawdbot can also merge **external channel catalogs** (for example, an MPM
+registry export). Drop a JSON file at one of:
+- `~/.clawdbot/mpm/plugins.json`
+- `~/.clawdbot/mpm/catalog.json`
+- `~/.clawdbot/plugins/catalog.json`
+
+Or point `CLAWDBOT_PLUGIN_CATALOG_PATHS` (or `CLAWDBOT_MPM_CATALOG_PATHS`) at
+one or more JSON files (comma/semicolon/`PATH`-delimited). Each file should
+contain `{ "entries": [ { "name": "@scope/pkg", "clawdbot": { "channel": {...}, "install": {...} } } ] }`.
+
 ## Plugin IDs
 
 Default plugin ids: