pnad-query SKILL.md skillA
pnad-query from arvorco/pnad is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add arvorco/pnad/pnad-query@git:20260419.32e5018Pins git:20260419.32e5018 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- arvorco/pnad
- Path
skills/pnad-query/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260419.32e5018, committed Apr 19, 2026
- First version recorded
- Feb 6, 2026
- Size
- 10,389 bytes
- Repository stars
- 16
- License
- MIT
Use this skill for ad-hoc read-only SQL on the PNADC SQLite database produced by this repo (`data/outputs/brasil.sqlite`). Trigger when the user asks for a precise custom aggregate — a specific AVG/SUM/COUNT, a specific UF or demographic cut, an arbitrary filter — that `brasil dashboard` or `brasil renda-por-faixa-sm` cannot express. Provides a PT/EN column dictionary, ten ready-made safe queries, and LLM guardrails. Companion to `brasil-cli-analyst` for the "exact number for X" use case.
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
# pnad-query A narrow-focus skill: **run safe, read-only SQL** against the PNADC SQLite database built by `brasil pipeline-run` / `brasil pipeline-run-anual`. Use when the question is: - *"Exact average labor income in Pernambuco for men aged 40-59"* - *"Share of households in Recife where the reference person has completed higher education"* - *"Count of workers with formal contract in Santa Catarina industry"* — i.e. **specific, flat queries** the dashboard does not express. For broader "paint me a picture" questions, prefer `brasil-cli-analyst`. --- ## the one command you need ```bash brasil query \ --db data/outputs/brasil.sqlite \ --sql "<YOUR_SQL>" \ --format json ``` Defaults: read-only, max 500 rows, JSON output, sampling metadata attached. --- ## tables | table | survey | primary income column | separate benefits? | |---|---|---|---| | `base_labeled_npv` | **PNADC trimestral** | `VD4020__rendim_efetivo_qq_trabalho` (effective labor income) | ❌ | | `base_anual_labeled_npv` | **PNADC anual visita 5** | `VD5001__rendim_domiciliar` (full household income) | ✅ — `V5001A2..V5008A2` | Rule of thumb: …
Read the whole file at its exact version.
How to install
mdr add arvorco/pnad/pnad-query@sha256:9e4654b38c29615bThe line at the top of this page pins the label git:20260419.32e5018, 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_4atogbotlsari6ps)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Feb 6, 2026 and Apr 19, 2026, about one every 36 days. Its first recorded version is graded C and its latest A.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260419.32e5018 latest | 2026-04-19 | 32e5018 | 10,389 B | A | view · diff |
| git:20260217.a0b94a9 | 2026-02-17 | a0b94a9 | 3,040 B | C | view · diff |
| git:20260206.69b4c3b | 2026-02-06 | 69b4c3b | 2,108 B | C | 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 (10389 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
arvorco/pnad · 16 stars · license MIT · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4atogbotlsari6ps GET https://markdownregistry.com/api/v1/resolve?ref=arvorco/pnad/pnad-query GET https://markdownregistry.com/api/v1/blob/9e4654b38c29615b12c68263c5c9e119cb703a8d4cd64c6733aabd78a43fdc32
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.