TypeScript Style Guide Skill: Enforce Conventions in Agent Workflows

Where this fits

You're mid-refactor on a React codebase with mixed type definitions—some use interface, others type, and discriminated unions are inconsistent. Your AI agent drafts changes, but you spend time correcting style drift. The typescript-style-guide skill gives your agent a set of opinionated, task-specific conventions to apply automatically, so generated code matches your team's patterns without manual review.

Why agents benefit

• Context-aware routing: The skill reads the consuming repo's existing conventions first, then applies only the relevant guide topics—no blanket rules that clash with local style.
• Precision over generic advice: It references specific files (e.g., types.md for type modelling, react.md for component design) based on the task, so agents don't hallucinate or overreach.
• Tradeoff articulation: When a convention depends on judgment (e.g., when to use unknown vs any), the skill instructs agents to state tradeoffs explicitly, improving transparency.
• Automatic invocation: Designed to trigger for TypeScript tasks involving types, functions, naming, state, React, or tests—no manual prompting needed.
• Repository-aware precedence: It respects explicit repo conventions over the opinionated guide, reducing friction when integrating into existing projects.

Practical scenarios

Refactoring legacy types to discriminated unions

Your agent is asked to unify a set of loosely related object types. The skill routes to the types reference, guiding the agent to model a discriminated union with a shared kind field, and to explain why this improves exhaustiveness checking in switch statements.

Reviewing a new React component's props

When the agent reviews a pull request, it uses the React component design reference to check prop naming, readonly arrays, and state initialization patterns. It flags deviations and suggests concrete fixes aligned with the guide.

Explaining a naming convention to a junior dev

A developer asks why certain variables are prefixed with _ or why functions use verb-first names. The agent consults the naming reference and produces a concise explanation with examples, turning style rules into teachable moments.

Add it to your agent workflow

Install the skill with:

npx skills add mkosir/typescript-style-guide --skill typescript-style-guide

Then, in your agent's system prompt or tool configuration, note that TypeScript tasks should use this skill. For example:

When working on TypeScript code, apply the typescript-style-guide skill to review and generate type definitions, function signatures, and React components. Respect existing repo conventions first.

The skill's workflow ensures the agent inspects the project, picks the right reference, and applies only what's relevant.

Compare before adopting

Before adding this skill, compare it against your current linting and formatting setup. Evaluate:

• Quality signals: Does the guide's advice align with common best practices (e.g., avoiding any, using readonly)? Check the GitHub stars (780) and recent activity.
• Maintenance freshness: Is the guide updated for new TypeScript versions? Look at commit history on the repo.
• Alternatives: Consider other style guides like ts-eslint rules or Airbnb's TypeScript style—this skill is opinionated, not exhaustive.
• Workflow fit: Does your agent already have strong conventions? If so, the skill's precedence mechanism helps, but test it on a sample task.

Why it is worth tracking

This skill tackles a common pain point: AI-generated code that looks “almost right” but misses subtle TypeScript idioms. Its 780 stars and active maintenance suggest a community-backed set of conventions. Track it if you're building agents that handle frontend or backend TypeScript, and revisit it when your team's style evolves—or when the guide adds new topics like testing patterns. For a live directory of skills, see OpenAgentSkill.