STATUS: PASS for the requested By Topic rebuild.

Regenerated and replaced:

• By Topic products found: 18
• Regenerated: 18 PDFs + 18 PPTXs
• Public By Topic now contains: 18 PDFs + 18 PPTXs
• Each regenerated public By Topic PDF: 24 pages
• Each regenerated public By Topic PPTX: 24 slides
• Audit rows: 1,800 PASS, 0 FAIL
• PDF/PPT concept parity: 1,800 PASS, 0 FAIL

Locations:

• Staging: G:\My Drive\Beyond Printables\Maths Products\staging\match_up_by_topic_taxonomy_rebuild\
• Public replaced folder: G:\My Drive\Beyond Printables\Maths Products\GENERATORS\match_cards\by_topic\
• Backup: G:\My Drive\Beyond Printables\Maths Products\staging\match_up_by_topic_taxonomy_rebuild\backup_existing_public_by_topic_20260625_163409\

Diagnostics created:

• diagnostics\match_up_by_topic_regeneration_audit.csv
• diagnostics\match_up_by_topic_regeneration_report.md
• diagnostics\match_up_by_topic_pdf_ppt_parity_report.md
• diagnostics\match_up_by_topic_visual_qa_contact_sheet.png

QA totals:

• Off-topic selections: 0
• Definition-context mismatches: 0
• PDF/PPT mismatches: 0
• Notation failures: 0
• Text-fit failures: 0
• Global fallback vocabulary used: 0
• Internal Step terminology failures: 0
• Known context check failures: 0

Context checks passed, including Circle Geometry tangent/segment, Averages mean, Statistics range, Graphs/Functions range, Number cube number, Geometry/Shape cube, Probability union/intersection, and Trigonometry tangent/cosine.

Unavoidable repetition:
All topic banks have fewer than 100 eligible concepts for 10 × 10 activities, so cross-version repetition is unavoidable. Exact-10 banks are Graphs And Coordinates, Measures And Mensuration, and Trigonometry.

Note: the broader public catalogue check still flags existing by_level_and_topic filename/count issues outside this task’s scope. I did not alter those, per your instruction.