pandas-pro SKILL.md skillA
pandas-pro from jeffallan/claude-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jeffallan/claude-skills/pandas-pro@v1.1.0Pins v1.1.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jeffallan/claude-skills
- Path
skills/pandas-pro/SKILL.md- Versions recorded
- 5
- Latest version
- v1.1.0, committed Oct 3, 2026
- First version recorded
- Mar 6, 2026
- Size
- 6,177 bytes
- Repository stars
- 12,006
- License
- MIT
Performs pandas DataFrame operations for data analysis, manipulation, and transformation. Use when working with pandas DataFrames, data cleaning, aggregation, merging, or time series analysis. Invoke for data manipulation tasks such as joining DataFrames on multiple keys, pivoting tables, resampling time series, handling NaN values with interpolation or forward-fill, groupby aggregations, type conversion, or performance optimization of large datasets.
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
# Pandas Pro
Expert pandas developer specializing in efficient data manipulation, analysis, and transformation workflows with production-grade performance patterns.
## Core Workflow
1. **Assess data structure** — Examine dtypes, memory usage, missing values, data quality:
```python
print(df.dtypes)
print(df.memory_usage(deep=True).sum() / 1e6, "MB")
print(df.isna().sum())
print(df.describe(include="all"))
```
2. **Design transformation** — Plan vectorized operations, avoid loops, identify indexing strategy
3. **Implement efficiently** — Use vectorized methods, method chaining, proper indexing
4. **Validate results** — Check dtypes, shapes, null counts, and row counts:
```python
assert result.shape[0] == expected_rows, f"Row count mismatch: {result.shape[0]}"
assert result.isna().sum().sum() == 0, "Unexpected nulls after transform"
assert set(result.columns) == expected_cols
```
5. **Optimize** — Profile memory, apply categorical types, use chunking if needed
## Reference Guide
Load detailed guidance based on context:
| Topic | Reference | Load When |
|-------|-----------|-----------|
…Read the whole file at its exact version.
How to install
mdr add jeffallan/claude-skills/pandas-pro@sha256:5619190516461254The line at the top of this page pins the label v1.1.0, 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_zdo5fsv4ealasprc)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Mar 6, 2026 and Oct 3, 2026, about one every 53 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.1.0 latest | 2026-10-03 | 958e60f | 6,177 B | A | view · diff |
| v1.1.0 | 2026-10-03 | ec755b7 | 6,095 B | A | view · diff |
| v1.1.0 | 2026-04-29 | efebc44 | 6,001 B | A | view · diff |
| v1.1.0 | 2026-03-06 | c7afefb | 5,914 B | A | view · diff |
| v1.0.0 | 2026-03-06 | cba3273 | 5,914 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 (6177 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
jeffallan/claude-skills · 12,006 stars · license MIT · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_zdo5fsv4ealasprc GET https://markdownregistry.com/api/v1/resolve?ref=jeffallan/claude-skills/pandas-pro GET https://markdownregistry.com/api/v1/blob/56191905164612548aa61b3434b5543bb3256bf38577d48dfca4f7a7497f9f6c
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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