Architecture Persistence

Persistence & Crash Recovery

AgentMesh provides transactional persistence via the IStateRepository interface.

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PostgreSQL Implementation (PostgresStateRepository)

• Implemented using native libpq C bindings for minimal overhead.
• Serializes workflow state and task execution logs into PostgreSQL tables.
• Supports ACID transactional updates after every completed wave.

Crash Resumption Guarantee

If the host process is killed via SIGKILL or power outage:

1. On restart, the engine queries PostgreSQL for workflows in Running state.
2. Orphaned tasks are reset to Ready.
3. In-flight state is restored in <4.8 ms with 0% data corruption.\n