[BUG] **Telegram plugin: inbound channel notifications silently dropped**

Resolved 💬 2 comments Opened Mar 23, 2026 by jsuiscarre Closed Apr 21, 2026

Preflight Checklist

  • [x] I have searched existing issues and this hasn't been reported yet
  • [x] This is a single bug report (please file separate reports for different bugs)
  • [x] I am using the latest version of Claude Code

What's Wrong?

Telegram plugin: inbound channel notifications silently dropped

  • Claude Code v2.1.81, macOS, telegram plugin v0.0.1
  • MCP SDK 1.27.1, stdio transport
  • tengu_harbor: true, telegram in tengu_harbor_ledger

Outbound works (reply tool sends messages to Telegram fine).
Inbound broken: bot receives messages, reacts with ack emoji,
sends notifications/claude/channel via mcp.notification() —
promise resolves successfully, but nothing surfaces in conversation.

Debug log confirms notification payload is valid JSON and
resolves without error. Process tree intact (bun → claude).
No zombie processes. Reinstall didn't help. --no-profile didn't help.
Worked ~24h ago on same version.

What Should Happen?

⏺ Here's the expected behavior to include:

Expected behavior:
When a user sends a message to the bot on Telegram:

  1. MCP server receives the message via getUpdates polling
  2. MCP server sends a notifications/claude/channel JSON-RPC

notification over stdio to Claude Code

  1. Claude Code should surface this as a <channel source="telegram"

chat_id="..." message_id="..." user="..." ts="..."> tag
in the active conversation

  1. The model sees the message and responds using the reply tool

Steps 1-2 work correctly (verified with debug logging).
Step 3 fails silently — the notification is received on the
stdio pipe but never surfaced to the conversation.

Error Messages/Logs

Steps to Reproduce

  1. Install telegram plugin: `claude plugins install

telegram@claude-plugins-official`

  1. Configure with /telegram:configure (set bot token, pair user)
  2. Start a Claude Code session
  3. Send a message to the bot on Telegram
  4. Bot reacts with ack emoji (👀) — confirms MCP server received the message
  5. Nothing appears in the Claude Code conversation

Debug logging added to server.ts confirms:

  • mcp.notification({ method: 'notifications/claude/channel', ... }) is called
  • Promise resolves successfully (no error)
  • Outbound reply tool works fine (can send messages TO Telegram)
  • Only inbound notifications are silently dropped

Tried: restarting Claude Code (12+ times), /reload-plugins,
killing zombie processes, reinstalling plugin, --no-profile.
None fixed it. Worked ~24h ago on same version.

For the model dropdown select Claude Opus 4.6 and for regression select Yes,
this worked in a previous version (or "same version" if that's an option — it
worked yesterday on 2.1.81).

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.1.81

Claude Code Version

2.1.81

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_

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