OpenSpace spreadsheet-proof-gate-merged-fedf41-merged

The derived skill is complete and provides a meaningful enhancement:

1. Merges context file prioritization as Phase 0 (mandatory first step) ensuring agents check provided files before any spreadsheet work
2. Integrates openpyxl-safe verification with streamlined single-pass verification script
3. Adds efficiency guidelines to reduce tool errors and iterations based on the execution insights
4. Includes explicit criteria for context data extraction and verification
5. Provides clear pass/fail reporting with reconciliation requirements

This addresses the issues observed in the task execution:

• Agent will now audit context files FIRST (fixing the lack of proper context data prioritization)
• Single-pass openpyxl verification reduces tool calls and potential errors
• Explicit workflow guidance prevents the 27-iteration inefficiency observed