us-census-data SKILL.md skillA
us-census-data from misterclean/ai-plugins is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add misterclean/ai-plugins/us-census-data@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
- misterclean/ai-plugins
- Path
skills/us-census-data/SKILL.md- Versions recorded
- 4
- Latest version
- v1.1.0, committed Sep 20, 2026
- First version recorded
- Jan 14, 2026
- Size
- 7,802 bytes
- Repository stars
- 3
- License
- MIT
This skill should be used when the user asks to "get Census data", "query American Community Survey", "find ACS data", "get population by state", "query Decennial Census", "find Census variables", "get median income data", "download demographic data", "Census API query", "get housing data from Census", or mentions US Census Bureau data (demographics, income, poverty, education, housing, population estimates, etc.).
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
# US Census Data Skill
Query demographic, economic, housing, and population data from the US Census Bureau API. Supports American Community Survey (ACS), Decennial Census, and Population Estimates.
## Prerequisites
Before querying, check if the user has an API key:
1. Look for `CENSUS_API_KEY` in the user's `.env` file
2. If found, append to requests: `&key=<api_key>`
3. If not found, instruct the user to:
- Register at https://api.census.gov/data/key_signup.html
- Add to `.env`: `CENSUS_API_KEY=your_key_here`
The API works without a key for testing but is rate-limited and may block requests.
## Quick Start
The Census API is at `api.census.gov`. Queries require:
1. **Dataset path**: `/data/{year}/{dataset}` (e.g., `/data/2022/acs/acs5`)
2. **Variables**: `?get=NAME,B01001_001E` (variable codes)
3. **Geography**: `&for=county:*&in=state:17` (FIPS codes)
4. **API Key**: `&key=YOUR_KEY` (required for production use)
## Workflow
### Step 1: Clarify the Data Need
Ask the user:
- **Topic**: What data? (population, income, housing, education, poverty, etc.)
- **Geography**: What level? (nation, state, county, tract, block group, ZCTA?)
- **Time period**: Which year(s)?
…Read the whole file at its exact version.
How to install
mdr add misterclean/ai-plugins/us-census-data@sha256:0c684b6b632c867aThe 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_adiayjkhq7svgr2g)
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Versions
The registry has recorded 4 versions of this file, between Jan 14, 2026 and Sep 20, 2026, about one every 83 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.1.0 latest | 2026-09-20 | 8890776 | 7,802 B | A | view · diff |
| v1.1.0 | 2026-01-18 | aeac250 | 7,788 B | A | view · diff |
| v1.0.0 | 2026-01-14 | 91dd2d8 | 7,596 B | A | view · diff |
| v1.0.0 | 2026-01-14 | dd5a939 | 7,650 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 (7802 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
misterclean/ai-plugins · 3 stars · license MIT · pushed 2026-11-01 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_adiayjkhq7svgr2g GET https://markdownregistry.com/api/v1/resolve?ref=misterclean/ai-plugins/us-census-data GET https://markdownregistry.com/api/v1/blob/0c684b6b632c867a4012a7b7edab239c453637759a4e4c76690a672d994174bd
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.