Lesson attendance — Record quality audit + Adjacent row changes: Record quality audit + Adjacent row changes for supplied lesson attendance records (attendees, registered_students). Up to 200 rows; 2 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 2 supplied-data reports for up to 200 rows.

Assessment item observations — Duplicate key report + Trailing mean series: Duplicate key report + Trailing mean series for supplied assessment item observations records (correct_responses, attempts). Up to 200 rows; 2 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 2 supplied-data reports for up to 200 rows.

Account research coverage — Two-measure correlation + Explicit missing-value fill: Two-measure correlation + Explicit missing-value fill for supplied account research coverage records (researched_accounts, target_accounts). Up to 200 rows; 2 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 2 supplied-data reports for up to 200 rows.

Product feature telemetry - Two-measure correlation: Two-measure correlation for Product feature telemetry. Up to 200 supplied typed records. Local descriptive analytics; no enrichment or forecast. One of 25 new profiles across 20 shared operations in this industry. 0.01 USDC includes one bounded two-measure correlation report.

Trade balance - Ordered trend analysis: Fit a descriptive straight-line trend to up to 200 equally spaced supplied observations; no forecast. Metric: Trade balance. Supplied figures only; returns JSON with formula, units and limitations. One of 50 calculators with 20 analysis modes. No live feed, financial advice or trade execution. 0.01 USDC includes one bounded ordered trend analysis report.

Refund imports — Declared column projection: Declared column projection for Refund imports. Validate a declared CSV table contract, up to 1000 rows. Quoted cells supported; no external enrichment. Specialised preset in a shared 50-profile, 20-operation engine. 0.01 USDC includes one CSV declared column projection report.

Refund imports — Record key uniqueness: Record key uniqueness for Refund imports. Validate a declared CSV table contract, up to 1000 rows. Quoted cells supported; no external enrichment. Specialised preset in a shared 50-profile, 20-operation engine. 0.01 USDC includes one CSV record key uniqueness report.

Museum footfall - Numeric row ordering: Numeric row ordering for Museum footfall. Up to 200 supplied typed records. Local descriptive analytics; no enrichment or forecast. One of 25 new profiles across 20 shared operations in this industry. 0.01 USDC includes one bounded numeric row ordering report.

Refund imports — Exact row duplicates: Exact row duplicates for Refund imports. Validate a declared CSV table contract, up to 1000 rows. Quoted cells supported; no external enrichment. Specialised preset in a shared 50-profile, 20-operation engine. 0.01 USDC includes one CSV exact row duplicates report.

Minimum-stock replenishment gap - Named scenario comparison: Named scenario comparison for Minimum-stock replenishment gap. Supplied retail figures only, up to 200 records. No platform access, live rates or order execution. One of 25 new profiles across 20 shared operations in this industry. 0.01 USDC includes one bounded named scenario comparison report.

Marketing contribution return - Distribution histogram: Bin up to 200 calculated observations into equal-width bins, including edge definitions. Metric: Marketing contribution return. Supplied figures only; returns JSON with formula, units and limitations. One of 50 calculators with 20 analysis modes. No live feed, financial advice or trade execution. 0.01 USDC includes one bounded distribution histogram report.

Labour force participation - Rolling mean report: Calculate trailing full-window means over ordered observations, preserving invalid-row gaps. Metric: Labour force participation. Supplied figures only; returns JSON with formula, units and limitations. One of 50 calculators with 20 analysis modes. No live feed, financial advice or trade execution. 0.01 USDC includes one bounded rolling mean report report.

Return on average assets - Base-100 rebase report: Rebase ordered calculated values against a supplied positive base observation. Metric: Return on average assets. Supplied figures only; returns JSON with formula, units and limitations. One of 50 calculators with 20 analysis modes. No live feed, financial advice or trade execution. 0.01 USDC includes one bounded base-100 rebase report report.

Save and replay module: horizontal-15-d4: Reusable versioned localStorage save validation and bounded input replay ES module with a preset initial save. Preset horizontal-15-d4; configurable title, seed and accent. Source files, not hosted gameplay. One of 100 presets across 10 shared generators. 0.01 USDC includes one editable game module or map bundle.

Save and replay module: balanced-23-d3: Reusable versioned localStorage save validation and bounded input replay ES module with a preset initial save. Preset balanced-23-d3; configurable title, seed and accent. Source files, not hosted gameplay. One of 100 presets across 10 shared generators. 0.01 USDC includes one editable game module or map bundle.

Expense claim imports — Invalid row export: Invalid row export for Expense claim imports. Validate a declared CSV table contract, up to 1000 rows. Quoted cells supported; no external enrichment. Specialised preset in a shared 50-profile, 20-operation engine. 0.01 USDC includes one CSV invalid row export report.

File ingestion - Adjacent row changes: Adjacent row changes for File ingestion. Up to 200 supplied typed records. Local descriptive analytics; no enrichment or forecast. One of 25 new profiles across 20 shared operations in this industry. 0.01 USDC includes one bounded adjacent row changes report.

Backordered demand share - Named scenario comparison: Named scenario comparison for Backordered demand share. Supplied retail figures only, up to 200 records. No platform access, live rates or order execution. One of 25 new profiles across 20 shared operations in this industry. 0.01 USDC includes one bounded named scenario comparison report.

Water service coverage — IQR outlier flags + Date by category pivot: IQR outlier flags + Date by category pivot for supplied water service coverage records (served_households, total_households). Up to 200 rows; 2 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 2 supplied-data reports for up to 200 rows.

Canvas 2D playable starter: braided-23-d4: Editable maze game rendered with browser Canvas 2D; no external runtime library. Preset braided-23-d4; configurable title, seed and accent. Source files, not hosted gameplay. One of 100 presets across 10 shared generators. 0.01 USDC includes one editable playable maze starter.