chore: bump version to 9.0.9

.claude-plugin/marketplace.json

@@ -10,7 +10,7 @@
   "plugins": [
     {
       "name": "claude-mem",
-      "version": "9.0.8",
+      "version": "9.0.9",
       "source": "./plugin",
       "description": "Persistent memory system for Claude Code - context compression across sessions"
     }

CHANGELOG.md

@@ -2,6 +2,37 @@
 
 All notable changes to claude-mem.
 
+## [v9.0.8] - 2026-01-26
+
+## Fix: Prevent Zombie Process Accumulation (Issue #737)
+
+This release fixes a critical issue where Claude haiku subprocesses spawned by the SDK weren't terminating properly, causing zombie process accumulation. One user reported 155 processes consuming 51GB RAM.
+
+### Root Causes Addressed
+- SDK's SpawnedProcess interface hides subprocess PIDs
+- `deleteSession()` didn't verify subprocess exit
+- `abort()` was fire-and-forget with no confirmation
+- No mechanism to track or clean up orphaned processes
+
+### Solution
+- **ProcessRegistry module**: Tracks spawned Claude subprocesses via PID
+- **Custom spawn**: Uses SDK's `spawnClaudeCodeProcess` option to capture PIDs
+- **Signal propagation**: Passes signal parameter to enable AbortController integration
+- **Graceful shutdown**: Waits for subprocess exit in `deleteSession()` with 5s timeout
+- **SIGKILL escalation**: Force-kills processes that don't exit gracefully
+- **Orphan reaper**: Safety net running every 5 minutes to clean up any missed processes
+- **Race detection**: Warns about multiple processes per session (race condition indicator)
+
+### Files Changed
+- `src/services/worker/ProcessRegistry.ts` (new): PID registry and reaper
+- `src/services/worker/SDKAgent.ts`: Use custom spawn to capture PIDs
+- `src/services/worker/SessionManager.ts`: Verify subprocess exit on delete
+- `src/services/worker-service.ts`: Start/stop orphan reaper
+
+**Full Changelog**: https://github.com/thedotmack/claude-mem/compare/v9.0.7...v9.0.8
+
+Fixes #737
+
 ## [v9.0.6] - 2026-01-22
 
 ## Windows Console Popup Fix
@@ -1265,11 +1296,3 @@ This represents a major reliability improvement for Windows users, eliminating c
 
 Patch release for bug fixes and minor improvements
 
-## [v7.3.3] - 2025-12-16
-
-## What's Changed
-
-- Remove all better-sqlite3 references from codebase (#357)
-
-**Full Changelog**: https://github.com/thedotmack/claude-mem/compare/v7.3.2...v7.3.3
-

package.json

@@ -1,6 +1,6 @@
 {
   "name": "claude-mem",
-  "version": "9.0.8",
+  "version": "9.0.9",
   "description": "Memory compression system for Claude Code - persist context across sessions",
   "keywords": [
     "claude",

plugin/.claude-plugin/plugin.json

@@ -1,6 +1,6 @@
 {
   "name": "claude-mem",
-  "version": "9.0.8",
+  "version": "9.0.9",
   "description": "Persistent memory system for Claude Code - seamlessly preserve context across sessions",
   "author": {
     "name": "Alex Newman"

plugin/package.json

@@ -1,6 +1,6 @@
 {
   "name": "claude-mem-plugin",
-  "version": "9.0.8",
+  "version": "9.0.9",
   "private": true,
   "description": "Runtime dependencies for claude-mem bundled hooks",
   "type": "module",

src/utils/claude-md-utils.ts

@@ -76,8 +76,8 @@ export function replaceTaggedContent(existingContent: string, newContent: string
 
   if (startIdx !== -1 && endIdx !== -1) {
     return existingContent.substring(0, startIdx) +
-           `${startTag}\n${newContent}\n${endTag}` +
-           existingContent.substring(endIdx + endTag.length);
+      `${startTag}\n${newContent}\n${endTag}` +
+      existingContent.substring(endIdx + endTag.length);
   }
 
   // If no tags exist, append tagged content at end
@@ -320,6 +320,18 @@ 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
+      // 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*');
+      const fileExists = existsSync(claudeMdPath);
+
+      if (hasNoActivity && !fileExists) {
+        logger.debug('FOLDER_INDEX', 'Skipping empty CLAUDE.md creation', { folderPath });
+        continue;
+      }
+
       writeClaudeMdToFolder(folderPath, formatted);
 
       logger.debug('FOLDER_INDEX', 'Updated CLAUDE.md', { folderPath });