"""
Claude Code PostToolUse hook for Edit/Write - suggest remembering significant changes.
Runs after Edit/Write tools complete. Analyzes the change and suggests
calling inscribe() for significant modifications. Never blocks.
"""
import sys
from pathlib import Path
from ._client import get_project_path, get_tool_input, get_file_path_from_input, succeed
# Patterns indicating architecturally or operationally significant changes
SIGNIFICANT_PATTERNS = [
"class ", "def __init__", "async def ", "@dataclass", "@mcp.tool",
"config", "settings", "environment",
"auth", "password", "token", "secret", "credential",
"migration", "schema", "model", "table", "column",
"endpoint", "route", "api", "request", "response",
]
# File types that are usually significant
SIGNIFICANT_EXTENSIONS = {
".py", ".ts", ".js", ".go", ".rs", ".java",
".yaml", ".yml", ".json", ".toml",
".sql", ".prisma",
}
def _is_significant(file_path: str, change_content: str) -> bool:
"""Determine if a change is significant enough to suggest remembering."""
ext = Path(file_path).suffix.lower()
if ext not in SIGNIFICANT_EXTENSIONS:
return False
change_lower = change_content.lower()
for pattern in SIGNIFICANT_PATTERNS:
if pattern.lower() in change_lower:
return True
if len(change_content) > 500:
return True
return False
def main() -> None:
project_path = get_project_path()
if project_path is None:
sys.exit(0)
file_path = get_file_path_from_input()
if not file_path:
sys.exit(0)
# Extract change content from tool input
data = get_tool_input()
old_string = data.get("old_string", "")
new_string = data.get("new_string", "")
content = data.get("content", "") # Write tool uses 'content'
change_content = f"{old_string} {new_string} {content}"
if not _is_significant(file_path, change_content):
sys.exit(0)
filename = Path(file_path).name
succeed(
f"[Daem0n suggests] Significant change to {filename}. "
f"Consider: inscribe(action='remember', content='...', file_path='{file_path}')"
)
if __name__ == "__main__":
import warnings
warnings.filterwarnings("ignore")
from daem0nmcp.claude_hooks._client import run_hook_safely
run_hook_safely(main)
