data-analysis SKILL.md skillA
data-analysis from dougtrajano/pydantic-ai-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add dougtrajano/pydantic-ai-skills/data-analysis@git:20260816.4a89ea0Pins git:20260816.4a89ea0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- dougtrajano/pydantic-ai-skills
- Path
examples/skills/data-analysis/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260816.4a89ea0, committed Aug 16, 2026
- Size
- 2,867 bytes
- Repository stars
- 380
- License
- MIT
Profile and aggregate a bundled sales dataset - group revenue by region, category, channel or month, apply filters, and compute sums, means, medians and ranges. Use for questions about sales figures, trends, or which segments perform best.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Data Analysis Skill Answers questions about a bundled sales dataset (`resources/sales.csv`): 96 rows covering six months, four regions, four product categories and three sales channels. This is the reference skill for exercising sandbox executors. Both scripts are standard library only and read their data from the skill folder, so they do real work with no network, no third-party packages and no host access — exactly the shape a sandbox is meant to run. ## When to Use This Skill - "Which region had the highest revenue?" → `aggregate` - "What were average units sold per category?" → `aggregate` - "How many rows are in the dataset and what does revenue look like?" → `profile_dataset` - "Compare online versus retail sales in the north" → `aggregate` with filters ## Skill Scripts ### profile_dataset Reports dataset shape, column names, summary statistics for every numeric column (count, sum, mean, median, stdev, min, max) and distinct-value counts for the categorical ones. - `column` (optional): Profile a single numeric column instead of all of them Exits 2 for an unknown column. ### aggregate Groups rows and aggregates a numeric column, optionally filtered and truncated. …
Read the whole file at its exact version.
How to install
mdr add dougtrajano/pydantic-ai-skills/data-analysis@sha256:af20a8bdb33bbb1bThe line at the top of this page pins the label git:20260816.4a89ea0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_aikqcae74msbxfsv)
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Versions
The registry has recorded 1 version of this file, committed on Aug 16, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (2867 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
dougtrajano/pydantic-ai-skills · 380 stars · license MIT · pushed 2026-10-16 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_aikqcae74msbxfsv GET https://markdownregistry.com/api/v1/resolve?ref=dougtrajano/pydantic-ai-skills/data-analysis GET https://markdownregistry.com/api/v1/blob/af20a8bdb33bbb1b4cdfdd213fa095d5bb585e7398708daad7b0f95ef92ed64e
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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