feat(IMP-12): Step 16/17 retry refinement — multi-donor + 3-stage salvage cascade

Extend Step 17 deterministic action surface so donor_slack_insufficient no longer
abort-terminates at zone_ratio_retry. AI is NOT invoked on the normal salvage path.

Source changes (4 files, scope-locked):
- src/phase_z2_retry.py — plan_zone_ratio_retry: single-primary-donor → multi-donor
  greedy aggregation (donors_used / aggregate_slack_used / aggregate_slack_available);
  new plan/apply pairs: cross_zone_redistribute (wraps fit_verifier.redistribute,
  data-role scoped CSS), glue_compression (wraps space_allocator.compute_glue_css_overrides,
  data-zone-position scoped), font_step_compression (wraps find_fitting_font_size,
  zone-scoped, defensive feasible=False on missing text_metrics).
- src/phase_z2_failure_router.py — classifier inspects salvage_steps[-1] via
  SALVAGE_FAILURE_TYPE_BY_ACTION; NEXT_ACTION_BY_FAILURE rewired into
  donor_slack_insufficient/no_donor_candidates → cross_zone_redistribute → glue
  → font_step → layout_adjust; 3 IMPLEMENTED salvage status rows added.
- src/phase_z2_router.py — ACTION_IMPLEMENTATION_STATUS registers 3 new salvage
  actions as IMPLEMENTED; ACTION_BY_CATEGORY untouched (cascade-only labels).
- src/phase_z2_pipeline.py — new _attempt_salvage_chain() iterates router
  next_proposed_action with retry_budget=1 per action; honors IMP-09 dynamic_cols
  / fr_default gate; preserves (b)-revert on all-fail; wires Step 17 telemetry
  (salvage_steps / salvage_passed).

Tests (6 new pytest modules):
- test_phase_z2_retry_multi_donor.py — single sufficient (regression), 1st
  insufficient + 2nd sufficient (multi-donor PASS), aggregate insufficient FAIL.
- test_phase_z2_cross_zone_redistribute.py — multi-role zone feasible,
  single-role zone short-circuits infeasible.
- test_phase_z2_glue_compression.py — feasible asserts emitted CSS contains
  [data-zone-position=...] selector and NO global :root/body/.slide rule.
- test_phase_z2_font_step_compression.py — 15.2 → 13 closes excess; 8px floor;
  missing text_metrics → defensive infeasible reason.
- test_phase_z2_failure_router_cascade.py — donor_slack_insufficient → cross_zone
  (impl=IMPLEMENTED); 3 new failure types → expected next actions; rerender_still_fails
  preserves frame_reselect terminus.
- test_phase_z2_step17_salvage_chain.py — end-to-end (a) cross_zone PASS promotes
  final.html, (b) cross_zone FAIL + glue PASS promotes 2nd candidate, (c) all-3
  FAIL preserves original final.html (revert).

Guardrails preserved:
- AI calls: 0 on normal path (feedback_ai_isolation_contract)
- Spacing direction: no shrink-common-margin; resolve via donor/glue/font-step
  within frame envelope (feedback_phase_z_spacing_direction)
- All CSS overrides scoped to [data-role=...] or [data-zone-position=...]
- IMP-09 dynamic_cols / fr_default gate honored in cascade
- (b)-revert preserved if all 3 salvage actions fail

Refs: gitea#12 IMP-12

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
2026-05-18 02:07:22 +09:00
parent a79bd8bc43
commit 56619a0239
10 changed files with 1246 additions and 39 deletions

View File

@@ -7,20 +7,29 @@ A3 (zone_ratio_retry) 의 결과 (retry_trace) 를 받아 :
본 module 은 ***분류 + 매핑까지만***. layout_adjust / frame_reselect / details_popup
실행 X. retry_trace 에 `failure_classification` + `next_action_proposal` 두 필드 추가.
**잠근 매핑** (사용자 잠금 — 2026-04-29) :
**잠근 매핑** (사용자 잠금 — 2026-05-17, IMP-12 u3 cascade) :
| failure_type | next_proposed_action |
| failure_type | next_proposed_action |
|---|---|
| donor_slack_insufficient | layout_adjust |
| no_donor_candidates | layout_adjust |
| rerender_still_fails | frame_reselect |
| not_attempted | none |
| donor_slack_insufficient | cross_zone_redistribute |
| no_donor_candidates | cross_zone_redistribute |
| cross_zone_redistribute_insufficient | glue_compression |
| glue_absorption_insufficient | font_step_compression |
| font_step_insufficient | layout_adjust |
| rerender_still_fails | frame_reselect |
| not_attempted | none |
**escalation 단계 hierarchy** (이번 기본 매핑이 따르는 원칙) :
**escalation 단계 hierarchy** (Step 17 deterministic salvage cascade → layout/frame) :
```
layout_adjust (가장 가벼움 — zone 배치만 변경)
cross_zone_redistribute (fit_verifier.redistribute — role-height adjustment)
↓ 그래도 안 되면
frame_reselect (중간 — frame 자체 변경)
glue_compression (SPACING_GLUE envelope, frame-scoped)
↓ 그래도 안 되면
font_step_compression (FONT_SIZE_STEPS, zone-scoped)
↓ 그래도 안 되면
layout_adjust (zone topology 변경)
↓ 그래도 안 되면
frame_reselect (V4 top-k 의 다른 frame)
↓ 그래도 안 되면
details_popup_escalation (가장 invasive — content popup, 마지막 resort)
```
@@ -53,26 +62,65 @@ FAILURE_TYPE_DESCRIPTIONS: dict[str, str] = {
"redistribution 실행 + rerender 까지 했는데도 visual_check 실패. "
"현재 frame/zone 조합이 content 와 맞지 않음"
),
"cross_zone_redistribute_insufficient": (
"cross_zone_redistribute salvage step failed — fit_verifier.redistribute "
"could not find a feasible role-height adjustment within the frame envelope"
),
"glue_absorption_insufficient": (
"glue_compression salvage step failed — frame envelope cannot absorb "
"remaining overflow via SPACING_GLUE overrides (no global spacing shrink)"
),
"font_step_insufficient": (
"font_step_compression salvage step failed — FONT_SIZE_STEPS exhausted "
"down to the floor without resolving overflow (or text_metrics missing)"
),
}
# ─── §A4-1b salvage_steps[-1].action → failure_type table ──────────
# u2 (IMP-12): _attempt_salvage_chain (u8) writes per-step records into
# retry_trace["salvage_steps"] with {action, passed, failure_reason}. classifier
# inspects salvage_steps[-1] so u3 can route 3 new types onto the cascade.
SALVAGE_FAILURE_TYPE_BY_ACTION: dict[str, str] = {
"cross_zone_redistribute": "cross_zone_redistribute_insufficient",
"glue_compression": "glue_absorption_insufficient",
"font_step_compression": "font_step_insufficient",
}
# ─── §A4-2 next_action mapping (사용자 잠금) ──────────────────────
NEXT_ACTION_BY_FAILURE: dict[str, str] = {
"donor_slack_insufficient": "layout_adjust",
"no_donor_candidates": "layout_adjust",
"rerender_still_fails": "frame_reselect",
"not_attempted": "none",
"donor_slack_insufficient": "cross_zone_redistribute",
"no_donor_candidates": "cross_zone_redistribute",
"cross_zone_redistribute_insufficient": "glue_compression",
"glue_absorption_insufficient": "font_step_compression",
"font_step_insufficient": "layout_adjust",
"rerender_still_fails": "frame_reselect",
"not_attempted": "none",
}
NEXT_ACTION_RATIONALE: dict[str, str] = {
"donor_slack_insufficient": (
"현재 layout 안 redistribution 끝남 → 다른 layout topology 검토 "
"(layout_adjust). frame 자체는 아직 의심 대상 X"
"primary donor slack 한도 도달 → cross_zone_redistribute 로 sibling zone "
"전체 role-height 재분배 (fit_verifier.redistribute). layout 변경은 cascade 끝"
),
"no_donor_candidates": (
"donor 자체 없거나 모두 막힘 → layout topology 부터 재구성하여 "
"sibling/space 다시 만들어 보는 게 우선 (layout_adjust). frame 변경은 그 다음"
"단일 donor 후보 없음 → cross_zone_redistribute 로 role-height 전체 "
"재할당 시도 (fit_verifier.redistribute). layout 변경은 cascade 끝"
),
"cross_zone_redistribute_insufficient": (
"role-height 재분배도 frame envelope 못 맞춤 → glue_compression "
"(SPACING_GLUE frame-scoped) 으로 frame 내부 여백 축소"
),
"glue_absorption_insufficient": (
"frame 여백 envelope 도 부족 → font_step_compression "
"(FONT_SIZE_STEPS zone-scoped) 으로 폰트 한 단계 축소"
),
"font_step_insufficient": (
"deterministic salvage cascade 모두 소진 → layout_adjust 로 zone "
"topology 부터 재구성. frame_reselect 는 그 다음 단계"
),
"rerender_still_fails": (
"redistribution + rerender 까지 했는데도 visual fail → 현재 "
@@ -85,10 +133,19 @@ NEXT_ACTION_RATIONALE: dict[str, str] = {
}
# 본 매핑이 가리키는 next action 들의 *현재 코드* 구현 상태
# IMP-12 u7 (2026-05-18): 3 cascade salvage actions registered as IMPLEMENTED.
# plan/apply pairs live in phase_z2_retry (u4/u5/u6); pipeline orchestrator wiring
# (_attempt_salvage_chain) lands in u8/u9. router-level mapping is decoupled from
# orchestrator wiring on purpose so route_retry_failure → impl_status reflects
# the deterministic surface availability, not whether a given pipeline run has
# already invoked it.
NEXT_ACTION_IMPLEMENTATION_STATUS: dict[str, str] = {
"layout_adjust": "MISSING",
"frame_reselect": "MISSING",
"none": "n/a",
"cross_zone_redistribute": "IMPLEMENTED", # u4 plan_cross_zone_redistribute + apply_cross_zone_redistribute_css
"glue_compression": "IMPLEMENTED", # u5 plan_glue_compression + apply_glue_compression_css
"font_step_compression": "IMPLEMENTED", # u6 plan_font_step_compression + apply_font_step_compression_css
"layout_adjust": "MISSING",
"frame_reselect": "MISSING",
"none": "n/a",
}
@@ -106,6 +163,29 @@ def classify_retry_failure(retry_trace: dict) -> Optional[dict]:
if retry_trace.get("retry_passed"):
return None
# case 0.5 : salvage chain 자체 성공 — failure 없음 (u8/u9 wiring)
if retry_trace.get("salvage_passed"):
return None
# case 0.7 : salvage chain attempted and ended in a salvage-level failure.
# zone_ratio_retry 가 먼저 실패한 뒤 _attempt_salvage_chain 이 가동된 path —
# 마지막 salvage step 의 action 으로 failure_type 을 분류한다. u3 가 routing.
salvage_steps = retry_trace.get("salvage_steps") or []
if salvage_steps:
last = salvage_steps[-1] or {}
if not last.get("passed"):
action = (last.get("action") or "").lower()
ftype = SALVAGE_FAILURE_TYPE_BY_ACTION.get(action)
if ftype is not None:
reason = last.get("failure_reason") or ""
return {
"failure_type": ftype,
"classification_rule": (
f"salvage_steps[-1].action == {action!r} "
f"AND passed=False. raw failure_reason: {reason!r}"
),
}
# case 1 : retry 시도 자체 안 됨 (router_active=False 또는 다른 action)
if not retry_trace.get("retry_attempted"):
return {
@@ -204,7 +284,7 @@ def route_retry_failure(failure_type: str) -> dict:
"next_action_implementation_status": NEXT_ACTION_IMPLEMENTATION_STATUS.get(
next_action, "unknown"
),
"mapping_source": "A4 NEXT_ACTION_BY_FAILURE (사용자 잠금 2026-04-29)",
"mapping_source": "A4 NEXT_ACTION_BY_FAILURE (사용자 잠금 2026-05-17, IMP-12 u3 cascade)",
}