[BUG] Telegram plugin: notifications/claude/channel not injected into Claude session on Windows

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: notifications/claude/channel not injected on Windows
Environment: - OS: Windows 11 t

• Claude Code: 2.1.81
• Plugin: telegram@claude-plugins-official 0.0.4

Problem:
When running claude --channels plugin:telegram@claude-plugins-official, the Telegram bot receives messages (shows "typing..." indicator), but the message is never injected into the
Claude Code session.

What works:

• Sending messages from Claude → Telegram works fine
• Bot polling works (typing indicator appears when user sends message)
• No error logs ("failed to deliver inbound to Claude" never appears)
• Webhook is clean (url: "")
• access.json is correct, user ID is in allowFrom

What doesn't work:

• Inbound Telegram messages never appear as <channel> tags in Claude Code session
• Happens both with and without --channels flag
• --channels is not listed in claude --help

Conclusion:
The notifications/claude/channel MCP notification is sent by the bun server (no transport error), but Claude Code on Windows does not process/inject it into the session.

What Should Happen?

When a user sends a message to the Telegram bot, it should appear as a <channel source="telegram" ...> tag in the Claude Code session, and Claude
should respond to it automatically.

Error Messages/Logs

Steps to Reproduce

1. Install telegram plugin: /plugin install telegram@claude-plugins-official 2. Configure bot token: /telegram:configure <token>
2. Pair with the bot via Telegram DM 4. Start Claude Code with: claude --channels plugin:telegram@claude-plugins-official
3. Send a message to the bot from Telegram

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.81

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

_No response_