# Beta Close-out — Cycle #351

**Issue:** #351 — cdd/gamma: Add §γ-scaffold-time peer-enumeration invariant (prevent false-gap cycles)
**Branch:** cycle/351
**Merge commit:** merge(cdd/351) — merged into main
**Mode:** docs-only, design-and-build

## Review Context

**Verdict:** APPROVED R1 — clean review with no findings
**Review duration:** Single round, no fix iterations required
**CI status:** Green throughout (all builds successful)

**Review phases completed:**
- ✅ Phase 1: Contract integrity (10/10 checks pass)  
- ✅ Phase 2a: Issue contract (all 4 ACs met with evidence)
- ✅ Phase 2b: Diff context (clean, no findings)
- ✅ Phase 2c: Architecture (not active for docs-only cycle)

## Merge Evidence

**Pre-merge gate verification:**
- ✅ Identity truth: beta@cdd.cnos confirmed
- ✅ Canonical-skill freshness: main unchanged since session start  
- ✅ Non-destructive merge-test: clean merge in throwaway worktree

**Merge outcome:**
- 5 files changed, 177 insertions(+)
- Clean merge with `Closes #351` 
- All three target skill files updated per ACs
- Complete .cdd/unreleased/351/ artifact set preserved

## Cycle Findings

**Process observations:** No findings. This was a well-executed docs-only cycle with:
- Clear empirical anchor (tsc cycle #36 false-gap experience)
- Systematic symmetric discipline (γ peer-enumeration ↔ α rule 3.13 honest-claim)  
- Concrete prevention value (documented 1 RC round waste prevented)
- Clean implementation across all three target surfaces

**Implementation quality:** ACs were met with proper evidence and oracles. The peer-enumeration requirements add mechanical verification steps without bureaucratic overhead.

**Cycle coherence:** Strong. Gap identification from real empirical evidence → systematic prevention → consistent implementation across affected skills.

## Release Notes  

**Mode:** docs-only disconnect per release/SKILL.md §2.5b
- No version bump required (protocol/specification changes only)
- No tag needed (merge commit is the disconnect signal)  
- Cycle directory will move to `.cdd/releases/docs/{ISO-date}/351/` during γ closure
- γ writes PRA to `docs/gamma/cdd/docs/{ISO-date}/POST-RELEASE-ASSESSMENT.md`

**Ready for δ tag:** N/A — docs-only disconnect via merge commit

## Next Steps

- γ to write post-release assessment under docs-only disconnect path
- Cycle directory movement to `docs/{ISO-date}/` during γ closure  
- No version coordination or binary release required

**β work complete.** Handoff to γ for PRA and docs-only cycle closure.