[BUG] plugin Notification hook command may not be executed

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?

I created claude code plugin for hooks.
Notification hook command may not be executed.

I created test plugin for hooks.
https://github.com/byplayer/claude-code-byplayer-market/

and run the following command in claude code to install plugin.

/plugin marketplace add byplayer/claude-code-byplayer-market
/plugin install test-hooks@byplayer-marketplace

This plugin write message with timestamp to ~/claude-code-plugin-hooks.log as bellow.
https://github.com/byplayer/claude-code-byplayer-market/blob/main/plugins/test-hooks/hooks/hooks.json

2025/10/17 13:50:02 Stop Hook Triggered

When claude code callded Notification event, this hook command may not be executed, because Notification log was not printed.

What Should Happen?

When claude code callded Notification event, this hook command may not be executed, because Notification log was not printed.

Error Messages/Logs

debug log of claude code.(claude --debug).


...
[DEBUG] Registered 2 hooks from 1 plugins
...
[DEBUG] Getting matching hook commands for Notification with query: undefined
[DEBUG] Found 1 hook matchers in settings
[DEBUG] Matched 1 unique hooks for query "no match query" (1 before deduplication)
...
[DEBUG] Getting matching hook commands for Stop with query: undefined
[DEBUG] Found 1 hook matchers in settings
[DEBUG] Matched 1 unique hooks for query "no match query" (1 before deduplication)


However,  `~/claude-code-plugin-hooks.log` was written only Stop event.


2025/10/17 13:50:02 Stop Hook Triggered

Steps to Reproduce

claude-code-plugin-hooks.log

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.0.21 (Claude Code)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

iTerm2

Additional Information

_No response_