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Agent skill

Parity Check

by ipea in ipea/geobr

Check R↔Python API parity across geobr's two packages — which read functions exist on one side but not the other, and where matched functions disagree on argument names, defaults, or the metadata…

No licenceAuto-check: notesTesting & QA

Install Parity Check

skills CLI
$ npx skills add ipea/geobr --skill parity-check -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install ipea/geobr parity-check --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/ipea/geobr.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/parity-check .claude/skills/parity-check && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
parity-check
GitHub stars
959
Token cost
~1.4k tokens
SKILL.md length
480 words
Files
1
Skills in repo
9
Repo updated
First seen
Licence
None found

At a glance

Check R↔Python API parity across geobr's two packages — which read functions exist on one side but not the other, and where matched functions disagree on argument names, defaults, or the metadata…

  • Works in 4 steps: Function-set difference → Signature comparison (the part the… → Release-tag consistency → …
  • The user says check parity
  • SKILL.md covers Constraints, Phase 1: Function-set difference, Phase 2: Signature comparison… and Phase 3: Release-tag consistency, plus 2 more sections
  • Calls python

What it does

Parity Check is an agent skill from ipea/geobr. Check R↔Python API parity across geobr's two packages — which read functions exist on one side but not the other, and where matched functions disagree on argument names, defaults, or the metadata key they resolve. Use when the user says "check parity", "do R and Python match", "is the python side up to date", "API drift", or after changing a public reader on one side. Read-only; produces a report, never edits.

Its SKILL.md is about 1.4k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Testing & QA. It works with Python. The repository describes itself as: Easy access to official spatial data sets of Brazil in R and Python.

When your agent uses it

  • The user says check parity
  • Do R and Python match
  • Is the python side up to date
  • After changing a public reader on one side

Example prompts

  • “check parity”
  • “do R and Python match”
  • “is the python side up to date”
  • “/parity-check”

Requirements

  • Python 3
  • Pre-approved tools (allowed-tools): Read, Grep, Glob, Bash, Write

Workflow steps

4 steps, taken from the step headings in SKILL.md.

  1. Function-set difference
  2. Signature comparison (the part the helper cannot do)
  3. Release-tag consistency
  4. Report

What it can do on your machine

Read from SKILL.md and the folder at commit 0969f92. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Grep
    • Glob
    • Bash
    • Write

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • python

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Parity Check loads about 1.4k tokens when it runs. Until then it costs about 107 tokens; SKILL.md has 480 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~107
When it runs · the whole SKILL.md, loaded when a task matches
~1.4k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

  • NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
    allowed-tools: Read, Grep, Glob, Bash, Write

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 480 words (~1,435 tokens).

“geobr is one package implemented twice. This skill finds where the two implementations have drifted.”

— opening of SKILL.md by ipea
name
parity-check
allowed-tools
Read, Grep, Glob, Bash, Write
author
geobr
version
1.0.0
argument-hint
[function name, or blank for all]
effort
high

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .claude/skills/parity-check of ipea/geobr.

Open the folder on GitHubat commit 0969f92

Compare with similar skills

Parity Check next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Parity Check compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Parity Check this skillipea/geobr959—~1.4kAutomated safety check: NotesNone
Web Application Testinganthropics/skills180k51 repos~966Automated safety check: PassApache-2.0
OpenHarness End-to-End EvalsHKUDS/OpenHarness16k1 repos~2.1kAutomated safety check: NotesMIT
Adk Verify Snippetsgoogle/adk-python22k—~1.4kAutomated safety check: PassApache-2.0
Apple Container Test RunnerRustPython/RustPython22k—~467Automated safety check: PassMIT
JSON Repair Docs Demo Local Testmangiucugna/json_repair5.1k—~549Automated safety check: PassMIT

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More from ipea/geobr

All 9 skills in this repo

  • Learn

    ipea/geobr

    Extract reusable knowledge from the current session into a persistent skill.

    959 GitHub starsUsed in 2 repos~1.2k tokens
    Auto-check: notes

  • Checkpoint

    ipea/geobr

    Save a structured state snapshot the next session can resume from — active plan, decisions and why, file pointers with line numbers, open questions, next 1-3 actions, and what to deliberately forget.

    959 GitHub stars~1.4k tokensUpdated 10 days ago
    Auto-check: notes

  • Deep Audit

    ipea/geobr

    Deep consistency audit of the geobr repository — configuration, documentation, and the two packages.

    959 GitHub stars~1.8k tokensUpdated 10 days ago
    Auto-check: notes

  • Diagnose

    ipea/geobr

    Root-cause a failing or wrong geobr call with a disciplined check-the-environment-first loop instead of guessing.

    959 GitHub stars~1.5k tokensUpdated 10 days ago
    Auto-check passed

  • Py Package Check

    ipea/geobr

    Run the Python package release gate for geobr — sync the locked environment, run the offline and network test suites, build the distribution, and review the source against the Python conventions.

    959 GitHub stars~1.4k tokensUpdated 10 days ago
    Auto-check: notes

  • R Package Check

    ipea/geobr

    Run the full R package release gate — regenerate docs, run the test suite, run R CMD check --as-cran, and triage every ERROR / WARNING / NOTE against CRAN policy before a release or submission.

    959 GitHub stars~1.5k tokensUpdated 10 days ago
    Auto-check: notes

Works with

Categories

Questions about Parity Check

What does Parity Check do?

Check R↔Python API parity across geobr's two packages — which read functions exist on one side but not the other, and where matched functions disagree on argument names, defaults, or the metadata…. Parity Check is an agent skill from ipea/geobr. Check R↔Python API parity across geobr's two packages — which read functions exist on one side but not the other, and where matched functions disagree on argument names, defaults, or the metadata key they resolve.

When should I use Parity Check?

Parity Check fits situations like: the user says check parity; do R and Python match; is the python side up to date; after changing a public reader on one side.

How do I install Parity Check in Claude Code?

Run `npx skills add ipea/geobr --skill parity-check -a claude-code`. Or copy the skill folder (.claude/skills/parity-check in ipea/geobr) into .claude/skills/parity-check in your project. Claude Code loads it when a task matches its description.

How do I install Parity Check in Codex?

Run `npx skills add ipea/geobr --skill parity-check -a codex`. Or copy the skill folder (.claude/skills/parity-check in ipea/geobr) into .agents/skills/parity-check in your project. Codex loads it when a task matches its description.

Can I use Parity Check in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add ipea/geobr --skill parity-check -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/parity-check, .gemini/skills/parity-check, .github/skills/parity-check and .opencode/skills/parity-check in your project.

What does Parity Check need to run?

Going by SKILL.md and its folder, Parity Check needs the command-line tools its instructions call (python). Our summary lists: Python 3. Its frontmatter pre-approves these tools: Read, Grep, Glob, Bash, Write.

Does Parity Check access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Parity Check safe to install?

Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Parity Check use?

No licence was found for Parity Check or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Parity Check use?

About 1.4k tokens (SKILL.md is roughly 5.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Parity Check?

Skills that share tags, products or a category with Parity Check: Web Application Testing (anthropics/skills, 180k stars), OpenHarness End-to-End Evals (HKUDS/OpenHarness, 16k stars), Adk Verify Snippets (google/adk-python, 22k stars) and Apple Container Test Runner (RustPython/RustPython, 22k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Parity Check?

ipea (a GitHub organization) maintains it in ipea/geobr, which has 959 GitHub stars. The repository holds 9 skills in this directory. The repository was last updated on September 27, 2026.

Source: ipea/geobr on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.