# Fullcode Guidance Closure (2026-04-24)

Change: `execute-fullcode-guidance-20260410`

Closure decision:
- Archive the change without further `H2/H3` tuning.
- Treat the fullcode branch as a completed research/diagnostic line, not the production-critical path.

Why this branch is being closed:
- The sequence completed the high-value semantic repairs (`B1` to `B4`) and established correct stitched-OOS evaluation semantics.
- Subsequent H1 ladder attempts produced limited or negative incremental value under the project guardrails.
- The lighter `regime-lite` branch achieved a validated promotion result on real PIT data and now serves the project’s practical end-state more directly.

Implication for project convergence:
- Fullcode remains available as a reference research branch.
- The project’s preferred operational baseline is now the validated lite runtime profile `promoted_fast_entry_hold3`.
- Further fullcode policy tuning is intentionally out of scope unless a future project-level failure reopens that path.