EDA Report Builder

    1

    Profile any dataset systematically: structure, nulls, outliers, distributions and correlations, with a findings summary.

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    Works with the AI tools you already use

    Claude CodeClaude CodeCursorCursorCodex CLICodex CLIGitHub CopilotGitHub CopilotGemini CLIGemini CLI+20 more

    EDA Report Builder

    Example session with this skill installed

    Profile subscriptions.parquet before I build a churn model. One row = one customer subscription. Skip the email column (PII). Tell me the top issues and whether it's ready for modelling.

    • Read your context and instructions
    • Compiled the eda report builder

    Illustrative example on synthetic data. It follows this skill's findings_summary.md template.

    EDA Findings Summary: subscriptions

    Dataset at a Glance

    ItemValue
    Rows × columns48,210 × 13 (email skipped)
    Grainone row per subscription ✅ confirmed; subscription_id is unique
    Date range2023-01-02 → 2026-09-28
    Memory6.1 MB

    Top Quality Issues

    Issue 1: cancel_reason is 71% null

    This is expected for active subscriptions, but 9% of

    cancelled rows are also null. Treat those as "unknown" rather than dropping them.

    Issue 2: Outliers in monthly_price

    312 rows are above the IQR fence ($480+). 290 of them are enterprise plans (real signal). 22 have a price of $99,999, which is a placeholder value and a data error.

    Issue 3: Redundant features

    seats and monthly_price have r = 0.91. Keep one, or combine them, before fitting a linear model.

    What Looks Good

    • No duplicate subscriptions and no negative prices
    • plan_tier has 4 clean categories with no stray casing
    • Signup volume is stable month to month, with no missing months

    Next Step

    Ready for modelling after 2 fixes: remove the 22 placeholder prices, and decide how to handle seats versus monthly_price. The full per-column stats are in eda_report_template.md.

    Connects securely to your tools. The creator never sees your data.

    What you get

    Profiling a new datasetPre-modelling data checksVerifying surprising resultsAnswering "is this data reliable?"

    About this skill

    EDA Report Builder gives your agent a repeatable exploratory data analysis routine, so you never skip a step before real analysis starts. It confirms the grain, profiles nulls against thresholds, flags outliers with IQR and z-score, summarises distributions, and highlights highly correlated pairs. It then works through an EDA checklist and writes both a full profiling report and a short summary of the top issues.

    Use it when

    • You just received a new dataset and need to know what is in it
    • An analysis produced surprising numbers and you want to check the data first
    • Someone asks "is this data reliable?"
    • You are about to fit a model or run a statistical test

    What's inside (installs as one folder, programmatic-eda/):

    • programmatic-eda/LICENSE
    • programmatic-eda/SKILL.md
    • programmatic-eda/assets/eda_report_template.md
    • programmatic-eda/assets/findings_summary.md
    • programmatic-eda/references/eda_checklist.md
    • programmatic-eda/references/pandas_polars_recipes.md
    • programmatic-eda/references/quality_thresholds.md
    • programmatic-eda/scripts/correlation_explorer.py
    • programmatic-eda/scripts/data_overview.py
    • programmatic-eda/scripts/distribution_summary.py
    • programmatic-eda/scripts/null_profiler.py
    • programmatic-eda/scripts/outlier_detector.py

    Please read before buying: this is packaged from my free, MIT-licensed open-source library (https://github.com/nimrodfisher/data-analytics-skills). The same content is available there for free. You are paying for a ready-to-install package. It is a one-time purchase, sold as-is, with no support, updates or maintenance included. The MIT license is included.

    How to install

    Works the same in every agent - Claude, Cursor, Codex, Copilot and 20+ more.

    ~30 seconds
    1. 1

      Download the ZIP

      Free skills download straight away. Paid skills unlock right after purchase.

    2. 2

      Unzip into your skills folder

      Every agent reads skills from one folder on your machine. Drop the unzipped folder in there.

    3. 3

      Ask your agent to use it

      Restart the agent if it was already running. It picks the skill up automatically - no config needed.

    Skills folder by agent

    Click the path to copy it. Create the folder if it does not exist yet.

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