christopher-buss

Implement a piece of work based on a spec or set of tickets.

Create a GitHub pull request for the current branch with `gh`. Use when the user asks to open a PR, submit changes for review, or open a pushed branch for review.

Testing Roblox/Luau code with Jest Roblox. Use when writing tests, mocking functions, asserting values, or configuring test suites in Luau with Jest Roblox. NOT JavaScript Jest — uses .never instead of .not, jest.fn() returns two values, 0 is truthy.

Use when designing components, systems, or entity structures for jecs in Roblox. Use when deciding if data should be one component or multiple, when archetype transitions seem expensive, or when choosing entity members vs relationships.

Remove signs of AI-generated writing from text. Use when editing or reviewing text to make it sound more natural and human-written. Based on Wikipedia's comprehensive "Signs of AI writing" guide. Detects and fixes patterns including: inflated symbolism, promotional language, superficial -ing analyses, vague attributions, em dash overuse, rule of three, AI vocabulary words, negative parallelisms, and excessive conjunctive phrases.

Use when building ECS-based games in Roblox with roblox-ts using jecs for entities, components, queries, and relationships

Node.js package manager with strict dependency resolution. Use when running pnpm specific commands, configuring workspaces, or managing dependencies with catalogs, patches, or overrides.

Use when writing TypeScript code for Roblox using roblox-ts, especially when unsure if a JavaScript API exists or how to handle Luau interop

Write tests, mock functions, assert values, and configure test suites for Roblox/Luau code using Jest Roblox — a Luau port whose API diverges from JS Jest in subtle, non-obvious ways that LLM training data does not cover. Use whenever encountering Jest in Roblox/Luau code: editing .spec test files, calling jest.fn/jest.mock/spyOn, using describe/it/expect, or debugging Jest tests.

Test-driven development (TDD) with red-green-refactor loop. Use when user wants to build features, fix bugs, mentions "tdd", wants integration tests, or implementing all new code.

Opinionated preferences for roblox-ts development. Use when setting up new roblox-ts projects or when coding style/tooling decisions arise.

Use when creating new skills, editing existing skills, or verifying skills work before deployment

Build and sharpen a project's domain model. Use when the user wants to pin down domain terminology or a ubiquitous language, record an architectural decision, or when another skill needs to maintain the domain model.

Craft rules for technical documentation prose — structure, voice, headings, steps, tables, callouts, and forbidden filler. Use when writing, reviewing, or revising developer docs (guides, tutorials, how-tos, reference, concept pages, READMEs). Pairs with the diataxis skill: diataxis decides *what kind* of page this is, this skill governs *how each sentence lands*.

Functional programming patterns with immutable data. Use when writing logic or data transformations.

Testing Roblox/Luau code with Jest Roblox. Use when writing tests, mocking functions, asserting values, or configuring test suites in Luau with Jest Roblox. NOT JavaScript Jest — uses .never instead of .not, jest.fn() returns two values, 0 is truthy.

Opinionated preferences for roblox-ts development. Use when setting up new roblox-ts projects or when coding style/tooling decisions arise.

Use when writing TypeScript code for Roblox using roblox-ts, especially when unsure if a JavaScript API exists or how to handle Luau interop

Run Jest tests inside Roblox, configure test execution, collect code coverage, and debug test runner failures for Roblox and roblox-ts projects. Use when setting up or running tests for a Roblox project, executing the jest-roblox command, editing jest.config.ts, adding test coverage, or debugging errors like "no backend available" or "failed to find Jest instance".

Node.js package manager with strict dependency resolution. Use when running pnpm specific commands, configuring workspaces, or managing dependencies with catalogs, patches, or overrides.

Testing Roblox/Luau code with Jest Roblox. Use when writing tests, mocking functions, asserting values, or configuring test suites in Luau with Jest Roblox. NOT JavaScript Jest — uses .never instead of .not, jest.fn() returns two values, 0 is truthy.

Testing Roblox/Luau code with Jest Roblox. Use when writing tests, mocking functions, asserting values, or configuring test suites in Luau. NOT JavaScript Jest — uses .never instead of .not, jest.fn() returns two values, 0 is truthy.