
● Pass 3 complete. Review/documentation only — no production edits, no commits, no refactoring proposals disconnected from current code.                                 
                                                                                                                                                                         
  Artifact written: docs/internal_guide/code_review/review_002/REVIEW-002-PROMPT-03-FINDINGS.adoc (per your explicit "write into review_002/" instruction and the sibling
   naming convention; I did not use the prompt file's suggested architecture/reviews/ path — that directory doesn't exist and your instruction overrides the suggestion).

  Every finding is grounded in file:line from full reads of the XLSX/ODS triads, the contract facade, the generic write path, and the full guard suite.                  

  Summary                                                                            
                                                                                    
  Top adapter-boundary risks                                                                                                                                             
  1. P3-01 (MEDIUM) — openpyxl_parser.py:152-181 promotes an authored carrier observation (column widths) into the persisted canonical meta blob; ODS has no counterpart.
   This contradicts the parse contract's quarantine invariant, and the three guards that assert "no carrier promotion" never exercise it (fixtures use default widths).
  2. P3-02 / P3-03 (MEDIUM) — two generic spreadsheet semantics live as duplicated, unowned, already-divergent constants across the boundary: the workbook-option
  vocabulary (_WORKBOOK_OPTION_KEYS 5 keys vs OPTION_HINT_KEYS 7 keys, ×2) and the " / " multi-index header convention (4 sites, no constant, a comment literally
  inviting drift).                                                                                                                                                       
  3. G4 (MEDIUM) — ODS semantic parity is pinned only at the integration tier, not as a durable architecture invariant.       
                                                                                                                                                                         
  Hidden XLSX-centric assumptions — One of substance: the column-width carrier→canonical promotion (P3-01). The facade, RenderPlan, WorkbookIR, and formula handling are
  genuinely not XLSX-shaped.                                                                                                                                             
                                                                                                                                                                         
  ODS parity structurally sustainable? Yes. Symmetric triad, thin shared facade, shared neutral IR/plan, import guards on both, capability profile with encoded gaps, and
   a real 11-scenario cross-adapter parity test. The risks are accidental/bounded, not structural-design debt.

  Guard gaps — Four, named: G1 option-vocab equality, G2 header-separator ownership, G3 authored-width fixture hole, G4 architecture-tier ODS parity. The mechanism is
  sound; gaps are "generic semantic crosses the boundary unowned/unpinned," not enforcement failures.                                                                    
                                                                                                                                                                         
  Inherent vs accidental — Inherent complexity (roundtrip fidelity, canonical/rendering/carrier split, multi-backend formula translation, deferred reverse projection) is
   handled proportionately — do not refactor. All residue is accidental and narrowly repayable: shared constants, one explicit decision, one surgical purity fix (IR-006,
   now shown reachable on the multi-backend path via the parity harness). Explicit DO-NOT-SPLIT on every adapter/contract module; no generic backend abstraction or
  parser framework justified (ADR-001 and the parse contract respected).                                                                                                 
                                                                                                                                                                         
✻ Worked for 10m 41s                                                                
                                                                                                                                                                         
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❯ Cross-check P3-01 against the actual openpyxl write path                     