Companion reliability overhaul: deterministic completion, cancellation-safe background jobs (task + review), and explicit thread resume#346

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zknpr wants to merge 31 commits into

openai:mainfrom

zknpr:fix/clarify-agent-resume-token-suffix

Commits on May 22, 2026

docs: clarify Agent harness's agentId suffix is a resume token, not a running signal

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Commits on May 25, 2026

feat(codex-rescue): reliable completion notification for background jobs

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fix(codex-rescue-hook): address PR #346 review — token order, session scope, quoting

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fix(codex-rescue): watcher-consistent dispatched context + reject --background/--wait conflict

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fix(codex-rescue): harden background machinery (PR #346 review)

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fix(codex-rescue): make launch/cancel path atomic and crash-safe (PR #346 review)

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fix(codex-rescue): status --wait reconciles a dead background worker instead of hanging

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fix(codex-rescue): trust Agent tool status over echoed tokens; exit non-zero on failed launch (PR #346 review)

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fix(codex): reap locally-spawned codex app-server on host exit (process leak)

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feat(codex): alert that a write task can only edit within its cwd

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fix(codex-rescue): default to --background; foreground inside the subagent is reaped at ~143s

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fix(codex-rescue): dead-worker failure warns edits may still land via the app-server

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fix(codex): exit reaper kills the whole app-server tree on Windows (PR #346 review P1)

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fix(codex): task --background exits non-zero on a cancelled launch too (PR #346 review P2)

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Commits on Jul 16, 2026