229 Fn 24 69aefe81

fn-2.4 Update plan-review skill for codex backend

Description

Update /flow-next:plan-review skill to support codex backend alongside rp.

Changes needed

Same pattern as fn-2.3 (impl-review):

1. workflow.md - Add backend detection and branching
2. Backend dispatch:

   If backend == "codex":
       eval "$(flowctl codex plan-review $EPIC_ID)"
   

Files to modify

• plugins/flow-next/skills/flow-next-plan-review/workflow.md
• plugins/flow-next/skills/flow-next-plan-review/SKILL.md (if needed)

Acceptance

• Skill detects backend from env var or config
• Codex path calls flowctl codex plan-review
• RP path unchanged (no regression)
• Verdict returned correctly from both backends

Done summary

• Updated SKILL.md with backend selection logic
• Updated workflow.md with codex backend workflow (Phase 0 + codex section)
• Labeled RP phases for clarity
• Updated anti-patterns for both backends

Why:

• Enable codex as alternative to RepoPrompt for plan reviews
• No regression on RP workflow

Verification:

• smoke_test.sh passes

Evidence

• Commits: 4d2b1a5945ec615f37b6b0dbf1b59cfebe729f95
• Tests: smoke_test.sh
• PRs: