Skills

Skills are Markdown playbooks that add language conventions, testing practices, and review criteria to a GPTCode session. They are stored locally, can be inspected before use, and can be adapted to a project’s needs.

How skills work

You run: gt do "add user authentication"
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GPTCode detects the project language and framework
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Relevant local skills are added to the agent context
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The agent edits the project and runs its verification commands

Skills improve consistency, but they are instructions rather than guarantees. Generated code still requires tests and human review.

Included skills

Languages and frameworks

Skill	Focus
Go	Error handling, interfaces, concurrency, and standard layouts
Elixir	Pattern matching, OTP, Phoenix contexts, and Ecto
Ruby	Readable object design and Ruby conventions
Rails	Controllers, services, Active Record, and RSpec
Python	PEP 8, type hints, pytest, and common Python patterns
TypeScript	Strict typing, generics, and safe asynchronous code
JavaScript	Modern modules, async flows, and DOM safety
Rust	Ownership, error handling, traits, and Cargo workflows

Engineering workflows

Skill	Focus
TDD bug fix	Reproduce a defect with a failing test before changing production code
Code review	Review changes for correctness, security, and maintainability
Git commit	Prepare focused commits using Conventional Commits
Security	Apply practical OWASP-oriented checks
QA automation	Plan unit, integration, E2E, and accessibility coverage

Manage local skills

gt skills list
gt skills install ruby
gt skills install-all
gt skills show ruby

The project is open source, so the bundled skill definitions can be reviewed and improved directly in the repository.