feat(sandbox): Watchdog heartbeat and auto-recovery (#303) - #309
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Monitor sandboxed plugins with system.ping every 30s, SIGKILL on 5s pong timeout, and exponential restart backoff (issue #303).
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ZhuchkaTriplesix
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Jul 27, 2026
feat(sandbox): Watchdog heartbeat and auto-recovery (#303)
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Summary
SandboxWatchdog— periodicsystem.ping(default 30s), 5s pong timeout → deadlock +SIGKILL, clean timer/RPC/exit-subscription teardown onstop()SandboxAutoRecovery— exponential backoff 1s → 2s → 4s, max 3 failures per 5 minutes, success resets the windowCloses #303
Test plan
flutter test test/core/extensions/sandbox/