continual learning setup

hooks/session-end.sh

@@ -0,0 +1,47 @@
+#!/bin/bash
+# SessionEnd Hook - Triggers learning extraction
+#
+# This hook runs automatically after each Claude Code session.
+# It spawns a background process to analyze the session and update learnings.
+#
+
+# Read hook input from stdin (JSON with session info)
+INPUT=$(cat)
+
+# Extract transcript path using jq (required dependency)
+if ! command -v jq &> /dev/null; then
+    # jq not available, skip silently
+    exit 0
+fi
+
+TRANSCRIPT=$(echo "$INPUT" | jq -r '.transcript_path // empty')
+SESSION_ID=$(echo "$INPUT" | jq -r '.session_id // empty')
+PROJECT_DIR="${CLAUDE_PROJECT_DIR:-.}"
+
+# Validate transcript exists
+if [ -z "$TRANSCRIPT" ] || [ ! -f "$TRANSCRIPT" ]; then
+    exit 0
+fi
+
+# Only run retrospective if session was substantial (more than 10 lines)
+LINE_COUNT=$(wc -l < "$TRANSCRIPT" 2>/dev/null || echo "0")
+if [ "$LINE_COUNT" -lt 10 ]; then
+    exit 0
+fi
+
+# Check if learnings.md exists (system is properly set up)
+LEARNINGS_FILE="$PROJECT_DIR/.claude/skills/codebase-agent/learnings.md"
+if [ ! -f "$LEARNINGS_FILE" ]; then
+    exit 0
+fi
+
+# Run retrospective in background using claude -p
+# This uses Claude Code's existing authentication
+(
+    claude -p "Run /retrospective to analyze the session and extract learnings. The session transcript is at: $TRANSCRIPT" \
+        --cwd "$PROJECT_DIR" \
+        2>/dev/null
+) &
+
+# Exit immediately - don't wait for background process
+exit 0