aggregation-helper

Aggregation Helper - Auto-activating skill for Data Analytics. Triggers on: aggregation helper, aggregation helper Part of the Data Analytics skill category.

1.02x

Quality

Does it follow best practices?

Impact

97%

1.02x

Average score across 3 eval scenarios

Securityby

Passed

No known issues

Optimize this skill with Tessl

npx tessl skill review --optimize ./planned-skills/generated/12-data-analytics/aggregation-helper/SKILL.md

Evaluation results

100%

Sales Data Aggregation for Executive Dashboard

Production-ready SQL aggregation

Criteria

Without context

With context

Step-by-step plan

100%

Weekly aggregation

100%

Monthly aggregation

100%

Grouped by store and category

100%

Proper GROUP BY usage

50%

100%

Production-ready aliases

100%

NULL handling

87%

100%

Validation queries present

100%

Totals reconciliation

100%

Setup script runnable

100%

SQL comments

100%

Without context: $0.7376 · 3m 9s · 29 turns · 29 in / 12,645 out tokens

With context: $0.7082 · 2m 57s · 32 turns · 31 in / 12,195 out tokens

92%

Patient Outcomes Statistical Summary

Statistical aggregation with validation

Criteria

Without context

With context

Workflow documented

100%

Grouped statistics

100%

Full descriptive profile

100%

Percentiles included

100%

Missing value handling

100%

Production-ready error handling

Output written to CSV

100%

Validation report present

100%

Count reconciliation

100%

No unexplained magic numbers

87%

100%

Industry-standard library usage

100%

Without context: $0.4537 · 1m 41s · 27 turns · 28 in / 6,110 out tokens

With context: $0.5813 · 2m 1s · 33 turns · 285 in / 6,942 out tokens

100%

Marketing Campaign Performance Dashboard

Aggregated data visualization

Criteria

Without context

With context

Step-by-step approach documented

100%

Aggregated by channel and client

100%

CTR computed correctly

100%

Conversion rate computed

100%

Zero-impressions guard

100%

Missing spend handled

100%

At least 2 charts produced

100%

Charts use aggregated data

100%

Code comments present

100%

KPI summary CSV written

100%

Industry-standard visualization library

100%

Non-interactive rendering

100%

Without context: $0.3372 · 1m 32s · 21 turns · 22 in / 5,280 out tokens

With context: $0.6722 · 2m 33s · 35 turns · 34 in / 9,187 out tokens

Repository: jeremylongshore/claude-code-plugins-plus-skills
Commit: 0c08951

Evaluated: 17 days ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

Sales Data Aggregation for Executive Dashboard Patient Outcomes Statistical Summary Marketing Campaign Performance Dashboard

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