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fix: killAgent() actually kills the sidebar claude subprocess

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Cherry-pick PR #743 by @Gonzih. Implements cross-process kill signaling
via kill-file + polling pattern, tracks active processes per-tab.

Co-Authored-By: Gonzih <gonzih@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Garry Tan
2026-04-04 21:19:01 -07:00
co-authored by Gonzih Claude Opus 4.6
parent 4d6ffa8457
commit 3113d36d5d
2 changed files with 38 additions and 0 deletions
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browse/src/server.ts
+7
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@@ -585,6 +585,13 @@ function killAgent(): void {
agentStartTime = null;
currentMessage = null;
agentStatus = 'idle';
// Signal sidebar-agent.ts to kill its active claude subprocess.
// sidebar-agent runs in a separate non-compiled Bun process (posix_spawn
// limitation). It polls the kill-signal file and terminates on any write.
const agentQueue = process.env.SIDEBAR_QUEUE_PATH || path.join(process.env.HOME || '/tmp', '.gstack', 'sidebar-agent-queue.jsonl');
const killFile = path.join(path.dirname(agentQueue), 'sidebar-agent-kill');
try { fs.writeFileSync(killFile, String(Date.now())); } catch {}
}
// Agent health check — detect hung processes