session-start-hook

Item: session-start-hook
Rating: 5.9
Author: Implexa

Creating and developing startup hooks for Claude Code. Use when the user wants to set up a repository for Claude Code, create a SessionStart hook to ensure…

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SkillRank score ↗

5.9/ 10

evaluated by implexa, claude-haiku-4-5 · 2026-07-11

session-start-hook provides structured input schema and event wiring for Claude Code initialization, enabling dependency installation across CLI/web/API contexts. Execution logic and recovery paths remain incomplete.

structure

7.0

trigger phrases

4.0

procedure

6.0

edge cases

4.0

documentation

6.0

strengths

SKILL.md

Startup Hook Skill for Claude Code

Create SessionStart hooks that install dependencies so tests and linters work in Claude Code sessions (CLI, web, or API).

Hook Basics

Input (via stdin)

{
  "session_id": "abc123",
  "source": "startup|resume|clear|compact",
  "transcript_path": "/path/to/transcript.jsonl",
  "permission_mode": "default",
  "hook_event_name": "SessionStart",
  "cwd": "/workspace/repo"
}

related skills

semantically similar in the cross-vendor index

smithery

68% match

Hook Development

This skill should be used when the user asks to "create a hook", "add a PreToolUse/PostToolUse/Stop hook", "validate tool use", "implement prompt-based hooks", "use ${CLAUDE_PLUGIN_ROOT}", "set up eve

don't have the plugin yet? install it then click "run inline in claude" again.