codex-delegate

# Codex Delegate Skill Claude is the supervisor. Codex CLI runs the mechanical work. Claude plans, constrains scope, reviews the diff, and verifies outcomes. ## Why use this instead of raw `codex exec` This wrapper is not cosmetic. It exists because every shipping task that bypasses it loses one of three things that have caused real incidents: | What the wrapper handles | What raw `codex exec` costs you | |---|---| | **stdin closure** (`</dev/null`) | Codex hangs indefinitely (issue #20919). One session hit a 25-minute zero-byte hang on 2026-05-14 because the supervising agent forgot the redirect. | | **`.result.json` structured contract** (`status` / `risks` / `files_changed` / `tests_run`) | You parse raw stdout. On a 10 MB log this is multi-thousand tokens of grep + interpretation per run. | | **Brief template** (`references/task-template.md`) | Codex drifts. F11 (over-applied a sweep rule to the meta-doc documenting the rule) and F12 (injected unrequested "Attributions: Karpathy, Simon Willison, ..." lines) both shipped from no-brief raw invocations. | ### Token-saving ratios (directional dogfood data — measured treatment, ESTIMATED control) From a 6-round mixed-workload session (`awesome-agentic-ai-zh` 2026-05-14, see `agent-collab-skills/docs/measured-benefits.md`). Honest methodology note (per that doc's own words): the delegated arm was measured (bytes/3 proxy), the Claude-inline control arm was "estimated, not measured, because we didn't run the control conditi...