Initial commit

hooks/entrypoints/session-end.sh

@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# session-end.sh - SessionEnd hook for checkpoint cleanup
+# Purpose: Remove session-specific checkpoint file when Claude session terminates
+
+# Read hook input from stdin
+input=$(cat)
+session_id=$(echo "$input" | jq -r '.session_id // ""')
+
+# Validate session_id
+if [[ -z "$session_id" ]]; then
+  echo "ERROR: No session_id provided to SessionEnd hook" >&2
+  exit 0 # Fail open - SessionEnd can't block anyway
+fi
+
+# Check if git repo (checkpoint dir won't exist otherwise)
+if ! git rev-parse --git-dir &>/dev/null; then
+  exit 0
+fi
+
+checkpoint_dir=".git/bumper-checkpoints"
+state_file="$checkpoint_dir/session-$session_id"
+
+# Remove this session's checkpoint file
+if [[ -f "$state_file" ]]; then
+  rm -f "$state_file" 2>/dev/null || true
+fi
+
+# Optional: Clean stale checkpoints (files older than 30 days)
+# Uncomment the line below to enable automatic stale file cleanup:
+# find "$checkpoint_dir" -type f -name "session-*" -mtime +30 -delete 2>/dev/null || true
+
+exit 0