Checking Changes Agent Skill

Validates all code changes before committing by running format, lint, type, and unit test checks. Use after making backend (Python) or frontend (TypeScript) changes, before committing or finishing a work session.

229 tokens

context cost

the whole folder, loaded on every use

files

instructions only

copies elsewhere

how many repositories repackaged it

45465

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/streamlit/streamlit --skill checking-changes

The instruction itself

3 sections, as written by the author

Checking Changes

Run at the end of a work session or after completing a set of changes — not after every small edit.

make check

This runs formatting, linting, type checking, and unit tests on all uncommitted files (staged, unstaged, and untracked).

Workflow

Run make check
If issues are found:
Fix the reported errors
Re-run make check
Repeat until all checks pass
Only consider work complete when make check succeeds

Notes

E2E tests are not included by default; use E2E_CHECK=true make check to also run changed e2e tests
E2E snapshot mismatches can be ignored (they require manual updates)

Other skills for the same job

different authors, same section of the catalogue

Finishing A Development Branch

by ZhanlinCui

×7

Use when implementation is complete, all tests pass, and you need to decide how to integrate the work - guides completion of development work by presenting structured options for merge, PR, or cleanup

1k tokens

Github Release Management

by ComeOnOliver

×3

Comprehensive GitHub release orchestration with AI swarm coordination for automated versioning, testing, deployment, and rollback management

Migrate test files from `as` type assertions to @total-typescript/shoehorn. Use when user mentions shoehorn, wants to replace `as` in tests, or needs partial test data.

Modern JavaScript/TypeScript development with Bun runtime. Covers package management, bundling, testing, and migration from Node.js. Use when working with Bun, optimizing JS/TS development speed, or migrating from Node.js to Bun.

8k tokens

Framework Migration Deps Upgrade

by ComeOnOliver

×2

You are a dependency management expert specializing in safe, incremental upgrades of project dependencies. Plan and execute dependency updates with minimal risk, proper testing, and clear migration pa

Master systematic debugging techniques, profiling tools, and root cause analysis to efficiently track down bugs across any codebase or technology stack. Use when investigating bugs, performance issues, or unexpected behavior.

6k tokens

Backend Dev Guidelines

by ComeOnOliver

×2

Opinionated backend development standards for Node.js + Express + TypeScript microservices. Covers layered architecture, BaseController pattern, dependency injection, Prisma repositories, Zod validation, unifiedConfig, Sentry error tracking, async safety, and testing discipline.

36k tokens

Javascript Typescript Jest

by github

vendor ×1

Best practices for writing JavaScript/TypeScript tests using Jest, including mocking strategies, test structure, and common patterns.

558 tokens

How to use it

Copy the folder

Take streamlit/checking-changes from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.