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claude-codedevelopment

Babysitter hook-management

Session-scoped hook lifecycle management with enable/disable/status controls, execution profiling, and color-coded performance alerts.

install
source · Clone the upstream repo
git clone https://github.com/a5c-ai/babysitter
Claude Code · Install into ~/.claude/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/a5c-ai/babysitter "$T" && mkdir -p ~/.claude/skills && cp -r "$T/library/methodologies/claudekit/skills/hook-management" ~/.claude/skills/a5c-ai-babysitter-hook-management && rm -rf "$T"
manifest: library/methodologies/claudekit/skills/hook-management/SKILL.md
tags
#hook-management#session-control#performance-monitoring#tool-orchestration
source content

Hook Management

Overview

Session-scoped hook lifecycle management for ClaudeKit's event-driven hook system. Provides enable/disable/status controls with execution profiling and performance alerts.

Hook Types

PreToolUse Hooks

  • file-guard: Blocks sensitive file access (195+ patterns)

PostToolUse Hooks

  • typecheck-changed: Type checking on modified files
  • lint-changed: Linting on modified files
  • test-changed: Testing related to modified files
  • check-comment-replacement: Detects code replaced with comments
  • check-unused-parameters: Detects unused function parameters

UserPromptSubmit Hooks

  • codebase-map: Invisible project context injection
  • thinking-level: Reasoning enhancement (4 levels)

Stop/SubagentStop Hooks

  • create-checkpoint: Git-backed state snapshot
  • typecheck-project: Full project type checking
  • lint-project: Full project linting
  • test-project: Full test suite execution
  • self-review: Comprehensive change review

Session Isolation

All hook changes are session-scoped. Disabling a hook only affects the current session and does not persist.

Profiling

  • Red alert: execution time > 5s
  • Yellow warning: execution time > 3s
  • Green: execution time < 3s
  • Output size monitoring: flag > 10KB

Commands

  • /hook:enable [hookName]
    -- Enable a disabled hook
  • /hook:disable [hookName]
    -- Disable a hook for this session
  • /hook:status
    -- Show all hook states and profiling data

When to Use

  • When a hook is causing issues during a session
  • To check performance of hook executions
  • To temporarily bypass a hook for a specific operation

Processes Used By

  • claudekit-orchestrator
    (hook pipeline setup)
  • claudekit-safety-pipeline
    (hook profiling)