Files
multica/server
Jiang Bohan 0828253711 fix(execenv): wipe per-task codex skills dir before each hydration
Without this, the Reuse path leaves two classes of stale state behind:

1. Round 1 seeded user skill `writing/drafts/stale.md`. Round 2 reuses
   the same workdir with workspace skill `Writing` assigned: seed
   stage skips user `writing` (reserved), workspace stage writes
   `SKILL.md` via MkdirAll + WriteFile but never clears the directory,
   so the round-1 user support files surface under the workspace
   skill — violating "workspace fully wins on name conflict" and
   potentially leaking user-level files into a workspace skill view.

2. User uninstalls a skill from ~/.codex/skills between two runs. The
   prior copy in codex-home/skills/<name>/ lingers, so the codex CLI
   keeps seeing the removed skill.

Fix: RemoveAll(codex-home/skills) at the start of hydrateCodexSkills,
then re-seed user skills and re-write workspace skills. On Prepare
this is a no-op (envRoot was already wiped); on Reuse it resets the
slate.

Added two regression tests covering both scenarios.

Co-authored-by: multica-agent <github@multica.ai>
2026-05-13 16:31:48 +08:00
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