feat: v1.1.0 release - session ID tracking, async hooks, new skills

- Add session ID to session filenames (Issue #62)
- Add getSessionIdShort() helper for unique per-session tracking
- Add async hooks documentation with example
- Create iterative-retrieval skill for progressive context refinement
- Add continuous-learning-v2 skill with instinct-based learning
- Add ecc.tools ecosystem section to README
- Update skills list in README

All 67 tests passing.

skills/continuous-learning-v2/hooks/observe.sh

@@ -0,0 +1,137 @@
+#!/bin/bash
+# Continuous Learning v2 - Observation Hook
+#
+# Captures tool use events for pattern analysis.
+# Claude Code passes hook data via stdin as JSON.
+#
+# Hook config (in ~/.claude/settings.json):
+# {
+#   "hooks": {
+#     "PreToolUse": [{
+#       "matcher": "*",
+#       "hooks": [{ "type": "command", "command": "~/.claude/skills/continuous-learning-v2/hooks/observe.sh" }]
+#     }],
+#     "PostToolUse": [{
+#       "matcher": "*",
+#       "hooks": [{ "type": "command", "command": "~/.claude/skills/continuous-learning-v2/hooks/observe.sh" }]
+#     }]
+#   }
+# }
+
+set -e
+
+CONFIG_DIR="${HOME}/.claude/homunculus"
+OBSERVATIONS_FILE="${CONFIG_DIR}/observations.jsonl"
+MAX_FILE_SIZE_MB=10
+
+# Ensure directory exists
+mkdir -p "$CONFIG_DIR"
+
+# Skip if disabled
+if [ -f "$CONFIG_DIR/disabled" ]; then
+  exit 0
+fi
+
+# Read JSON from stdin (Claude Code hook format)
+INPUT_JSON=$(cat)
+
+# Exit if no input
+if [ -z "$INPUT_JSON" ]; then
+  exit 0
+fi
+
+# Parse using python (more reliable than jq for complex JSON)
+PARSED=$(python3 << EOF
+import json
+import sys
+
+try:
+    data = json.loads('''$INPUT_JSON''')
+
+    # Extract fields - Claude Code hook format
+    hook_type = data.get('hook_type', 'unknown')  # PreToolUse or PostToolUse
+    tool_name = data.get('tool_name', data.get('tool', 'unknown'))
+    tool_input = data.get('tool_input', data.get('input', {}))
+    tool_output = data.get('tool_output', data.get('output', ''))
+    session_id = data.get('session_id', 'unknown')
+
+    # Truncate large inputs/outputs
+    if isinstance(tool_input, dict):
+        tool_input_str = json.dumps(tool_input)[:5000]
+    else:
+        tool_input_str = str(tool_input)[:5000]
+
+    if isinstance(tool_output, dict):
+        tool_output_str = json.dumps(tool_output)[:5000]
+    else:
+        tool_output_str = str(tool_output)[:5000]
+
+    # Determine event type
+    event = 'tool_start' if 'Pre' in hook_type else 'tool_complete'
+
+    print(json.dumps({
+        'parsed': True,
+        'event': event,
+        'tool': tool_name,
+        'input': tool_input_str if event == 'tool_start' else None,
+        'output': tool_output_str if event == 'tool_complete' else None,
+        'session': session_id
+    }))
+except Exception as e:
+    print(json.dumps({'parsed': False, 'error': str(e)}))
+EOF
+)
+
+# Check if parsing succeeded
+PARSED_OK=$(echo "$PARSED" | python3 -c "import json,sys; print(json.load(sys.stdin).get('parsed', False))")
+
+if [ "$PARSED_OK" != "True" ]; then
+  # Fallback: log raw input for debugging
+  timestamp=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
+  echo "{\"timestamp\":\"$timestamp\",\"event\":\"parse_error\",\"raw\":$(echo "$INPUT_JSON" | python3 -c 'import json,sys; print(json.dumps(sys.stdin.read()[:1000]))')}" >> "$OBSERVATIONS_FILE"
+  exit 0
+fi
+
+# Archive if file too large
+if [ -f "$OBSERVATIONS_FILE" ]; then
+  file_size_mb=$(du -m "$OBSERVATIONS_FILE" 2>/dev/null | cut -f1)
+  if [ "${file_size_mb:-0}" -ge "$MAX_FILE_SIZE_MB" ]; then
+    archive_dir="${CONFIG_DIR}/observations.archive"
+    mkdir -p "$archive_dir"
+    mv "$OBSERVATIONS_FILE" "$archive_dir/observations-$(date +%Y%m%d-%H%M%S).jsonl"
+  fi
+fi
+
+# Build and write observation
+timestamp=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
+
+python3 << EOF
+import json
+
+parsed = json.loads('''$PARSED''')
+observation = {
+    'timestamp': '$timestamp',
+    'event': parsed['event'],
+    'tool': parsed['tool'],
+    'session': parsed['session']
+}
+
+if parsed['input']:
+    observation['input'] = parsed['input']
+if parsed['output']:
+    observation['output'] = parsed['output']
+
+with open('$OBSERVATIONS_FILE', 'a') as f:
+    f.write(json.dumps(observation) + '\n')
+EOF
+
+# Signal observer if running
+OBSERVER_PID_FILE="${CONFIG_DIR}/.observer.pid"
+if [ -f "$OBSERVER_PID_FILE" ]; then
+  observer_pid=$(cat "$OBSERVER_PID_FILE")
+  if kill -0 "$observer_pid" 2>/dev/null; then
+    kill -USR1 "$observer_pid" 2>/dev/null || true
+  fi
+fi
+
+exit 0