Initial commit

hooks/entrypoints/session-start.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# session-start.sh - SessionStart hook for baseline capture
+# Purpose: Capture working tree state as baseline when Claude session starts
+
+# Source library functions
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+source "$SCRIPT_DIR/../lib/git-state.sh"
+source "$SCRIPT_DIR/../lib/state-manager.sh"
+
+# Read hook input from stdin
+input=$(cat)
+session_id=$(echo "$input" | jq -r '.session_id')
+
+# Hook is already executed in project directory (cwd field in JSON)
+
+# Check if this is a git repository
+if ! git rev-parse --git-dir &>/dev/null; then
+  # Not a git repo - disable plugin gracefully
+  exit 0
+fi
+
+# Capture baseline tree
+baseline_tree=$(capture_tree)
+if [[ -z "$baseline_tree" ]]; then
+  echo "ERROR: Failed to capture baseline tree" >&2
+  exit 0 # Fail open
+fi
+
+# Capture current branch name for staleness detection
+baseline_branch=$(get_current_branch)
+
+# Write session state (with branch tracking)
+write_session_state "$session_id" "$baseline_tree" "$baseline_branch"
+
+# Allow session start
+exit 0