Hooks
What governor runs automatically, and when. A hook is a command Claude Code fires at a fixed moment, without you asking for it.
$ npx -y skills add 0xhimanshu/governor --agent claude-codeShips with governor. Installing the plugin gets these hooks.
What fires, and when
SessionStart
Fires once when a session begins, and again after a context compaction. It is where a plugin sets up its environment, or restores state the compaction dropped.
- Runs session-start.
UserPromptSubmit
Fires before Claude sees each prompt you send. A plugin can use it to inject context, so the same instruction reaches the model every turn instead of only at session start.
- Runs prompt.
PostToolUse
- Runs post-tool-use.
PostToolUseFailure
- Runs post-tool-use-failure.
PreCompact
- Runs compact.
Claude Code usage governor: compact professional output, context slimming, tool-output filtering, telemetry, and drift guardrails.
Repo: 0xhimanshu/governor