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fix: resolve path format mismatch in folder CLAUDE.md generation (#794) (#813)

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The isDirectChild() function failed to match files when the API used
absolute paths (/Users/x/project/app/api) but the database stored
relative paths (app/api/router.py). This caused all folder CLAUDE.md
files to incorrectly show "No recent activity".

Changes:
- Create shared path-utils module with proper path normalization
- Implement suffix matching strategy for mixed path formats
- Update SessionSearch.ts to use shared utilities
- Update regenerate-claude-md.ts to use shared utilities (was using
  outdated broken logic)
- Prevent spurious directory creation from malformed paths
- Add comprehensive test coverage for path matching edge cases

This is the proper fix for #794, replacing PR #809 which only masked
the bug by skipping file creation when "no activity" was shown.

Co-authored-by: bigphoot <bigphoot@gmail.com>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Alexander Knigge
2026-01-26 12:48:31 -08:00
committed by GitHub
parent 0b7ecedcd7
commit 182097ef1c
6 changed files with 257 additions and 57 deletions
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src/utils/claude-md-utils.ts
+11 -6
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@@ -6,7 +6,7 @@
* <claude-mem-context> tags.
*/
import { existsSync, readFileSync, writeFileSync, renameSync, mkdirSync } from 'fs';
import { existsSync, readFileSync, writeFileSync, renameSync } from 'fs';
import path from 'path';
import os from 'os';
import { logger } from './logger.js';
@@ -86,17 +86,22 @@ export function replaceTaggedContent(existingContent: string, newContent: string
/**
* Write CLAUDE.md file to folder with atomic writes.
* Creates directory structure if needed.
* Only writes to existing folders; skips non-existent paths to prevent
* creating spurious directory structures from malformed paths.
*
* @param folderPath - Absolute path to the folder
* @param folderPath - Absolute path to the folder (must already exist)
* @param newContent - Content to write inside tags
*/
export function writeClaudeMdToFolder(folderPath: string, newContent: string): void {
const claudeMdPath = path.join(folderPath, 'CLAUDE.md');
const tempFile = `${claudeMdPath}.tmp`;
// Ensure directory exists
mkdirSync(folderPath, { recursive: true });
// Only write to folders that already exist - never create new directories
// This prevents creating spurious folder structures from malformed paths
if (!existsSync(folderPath)) {
logger.debug('FOLDER_INDEX', 'Skipping non-existent folder', { folderPath });
return;
}
// Read existing content if file exists
let existingContent = '';
@@ -321,7 +326,7 @@ export async function updateFolderClaudeMdFiles(
const formatted = formatTimelineForClaudeMd(result.content[0].text);
// Fix for #758: Don't create new CLAUDE.md files if there's no activity
// Fix for #794: Don't create new CLAUDE.md files if there's no activity
// But update existing ones to show "No recent activity" if they already exist
const claudeMdPath = path.join(folderPath, 'CLAUDE.md');
const hasNoActivity = formatted.includes('*No recent activity*');