npx claudepluginhub nbkm8y5/claude-plugins --plugin youtube-toolkitDefined in hooks/hooks.json
{
"PostToolUse": [
{
"hooks": [
{
"type": "command",
"command": "python3 ${CLAUDE_PLUGIN_ROOT}/hooks/scripts/validate-youtube-output.py \"$FILE_PATH\"",
"timeout": 10
}
],
"matcher": "Write"
}
]
}"Runs Python validate-schema.py script on $FILE_PATH after PostToolUse for Edit|Write tools, validating file schemas post-modification. Touches file writes."