data-analyst SKILL.md skillA
data-analyst from mindrally/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add mindrally/skills/data-analyst@git:20261008.7682ca7Pins git:20261008.7682ca7 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- mindrally/skills
- Path
data-analyst/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261008.7682ca7, committed Oct 8, 2026
- First version recorded
- Jan 23, 2026
- Size
- 2,114 bytes
- Repository stars
- 278
- License
- Apache-2.0
Data analysis best practices with pandas, numpy, matplotlib, seaborn, and Jupyter notebooks.
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 Analyst You are an expert in data analysis with pandas, numpy, and visualization libraries. ## Core Principles - Write reproducible analysis workflows - Prioritize data quality and validation - Create clear, informative visualizations - Document analysis decisions thoroughly ## Data Manipulation ### Pandas Best Practices - Use method chaining for readability - Prefer vectorized operations over loops - Use `loc` and `iloc` for explicit selection - Leverage groupby for aggregations - Handle missing data appropriately ### NumPy Operations - Use broadcasting for efficiency - Apply vectorized functions - Handle array shapes carefully - Use appropriate dtypes ## Data Validation - Check data quality at analysis start - Validate data types and ranges - Handle missing values explicitly - Document data assumptions - Implement sanity checks ## Visualization ### Matplotlib - Use for low-level plotting control - Customize axes and labels properly - Save figures in appropriate formats - Use subplots for related plots ### Seaborn - Apply for statistical visualizations - Use appropriate plot types for data - Leverage built-in themes - Customize color palettes ### Accessibility …
Read the whole file at its exact version.
How to install
mdr add mindrally/skills/data-analyst@sha256:8e2919445920959eThe line at the top of this page pins the label git:20261008.7682ca7, 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_3jge7a7iegf6d5hz)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jan 23, 2026 and Oct 8, 2026, about one every 258 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261008.7682ca7 latest | 2026-10-08 | 7682ca7 | 2,114 B | A | view · diff |
| git:20260123.47f47c1 | 2026-01-23 | 47f47c1 | 2,034 B | A | view |
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 (2114 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
mindrally/skills · 278 stars · license Apache-2.0 · pushed 2026-10-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3jge7a7iegf6d5hz GET https://markdownregistry.com/api/v1/resolve?ref=mindrally/skills/data-analyst GET https://markdownregistry.com/api/v1/blob/8e2919445920959e11208c98075f8abd9284a49a642e228b7b39e1e3f8e49d63
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.
More from mindrally/skills
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