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agent-zero/extensions/python/startup_migration/AGENTS.md
Alessandro a48dee035c Raise self-update health timeout to 600 seconds 
Give updated and restored WebUI runtimes ten minutes to become healthy,
preserving A0_SELF_UPDATE_HEALTH_TIMEOUT_SECONDS overrides. Backup and
checkout still precede the health-check window.

Expose the configured timeout in update information and use 600 seconds
as the browser fallback, retaining its 30-second buffer. Upgrade older
durable managers through the existing migration with backup protection.

Validation: 55 focused tests passed in the Docker framework runtime.
Three frontend simulations passed for recovery after six minutes, a
900-second override, and expiry at the default 630-second browser limit.
2026-11-01 04:11:27 +01:00

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Startup Migration Extensions DOX

Purpose

  • Own backend startup migrations.

Ownership

  • Ordered Python files in this folder own idempotent migration steps that run during startup.

Local Contracts

  • Migrations must be safe to run repeatedly.
  • Preserve user data and create backups or reversible paths when changing durable state.
  • Keep long-running work bounded and observable.
  • _05_framework_dependencies.py applies the LiteLLM/OpenAI pins and shared security floors from root requirements.txt on Docker startup. Already-current and non-Docker environments skip installation; failures stop startup. Extend its package scope when future core dependency changes need self-update installation.
  • After changing framework packages, reuse helpers.process.restart_process() before serving requests so imported SDK modules are refreshed. Keep installation within 60 seconds to leave startup time within older self-updaters' health-check window; Git rollback does not restore Python packages.
  • _10_self_update_manager.py may replace /exe/self_update_manager.py from the repository copy when the installed runtime updater is stale; it must validate required safety markers and keep a backup before replacement.
  • Required updater capabilities include immutable rollback-stash identity (get_top_stash_oid), so runtimes using moving stash selectors are upgraded on startup.
  • Runtime markers also require fast, timestamp-tolerant ZIP backups so existing /exe managers receive the backup fixes.
  • Runtime synchronization also upgrades updaters with the older health timeout to the 600-second default, retaining the environment override.
  • After synchronizing a stale self-update manager, _10_self_update_manager.py starts that manager's best-effort Codex CLI refresh in the background so the update that introduces the hook does not need a second restart.

Work Guidance

  • Add migrations only for durable state changes that cannot be handled lazily elsewhere.

Verification

  • Smoke-test startup on a clean checkout and on representative existing user state when practical.

Child DOX Index

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