claude-code-ultimate-guide/examples/hooks/bash/setup-init.sh
Florian BRUNIAUX edf74b38c5 docs: add missing hook events from official CHANGELOG (v2.1.9-v2.1.10)
- Add 3 missing events to Section 7.1: Setup, PermissionRequest, SubagentStop
- Document PreToolUse additionalContext feature (v2.1.9+)
- Create 3 production-ready hook templates (setup, permission, subagent)
- Add resource evaluation documenting rejection of secondary source

Source: Official Claude Code CHANGELOG, not external blog posts
Closes gap identified during resource evaluation process

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2026-01-27 12:45:47 +01:00

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#!/bin/bash
# setup-init.sh
# Runs when Claude Code starts (v2.1.10+)
# Use with --init, --init-only, or --maintenance flags
INPUT=$(cat)
SESSION_ID=$(echo "$INPUT" | jq -r '.session_id // "unknown"')
CWD=$(echo "$INPUT" | jq -r '.cwd // "unknown"')
# Create log directory if needed
LOG_DIR="$HOME/.claude/logs"
mkdir -p "$LOG_DIR"
# Log startup event
TIMESTAMP=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
echo "[$TIMESTAMP] Setup hook triggered - Session: $SESSION_ID - CWD: $CWD" >> "$LOG_DIR/setup.log"
# Check project requirements
if [[ -f "package.json" ]]; then
# Check if node_modules exists
if [[ ! -d "node_modules" ]]; then
cat << EOF
{
"systemMessage": "⚠️ Project setup incomplete: node_modules missing. Run 'npm install' before continuing.",
"hookSpecificOutput": {
"additionalContext": "Node.js project detected without dependencies installed."
}
}
EOF
exit 0
fi
fi
# Check git status
if git rev-parse --git-dir > /dev/null 2>&1; then
BRANCH=$(git branch --show-current)
UNCOMMITTED=$(git status --short | wc -l | tr -d ' ')
if [[ $UNCOMMITTED -gt 0 ]]; then
cat << EOF
{
"hookSpecificOutput": {
"additionalContext": "Git status: On branch $BRANCH with $UNCOMMITTED uncommitted changes."
}
}
EOF
fi
fi
exit 0