agent-zero/extensions/python/startup_migration/AGENTS.md
Alessandro 1410bdcf6c Refresh Codex CLI during self-update
Refresh an existing Codex CLI after successful or already-current self-updates without making npm failures fatal. Bootstrap the new behavior when startup synchronizes a stale runtime updater, and cover both paths with focused regressions.
2026-07-10 16:53:04 +02:00

1.1 KiB

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.
  • _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.
  • 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.

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