Automated summary
This skill provides structured guidance for mastering TypeScript's advanced type system, including generics, conditional types, mapped types, and template literal types.
Strengths
- Covers the full range of advanced TypeScript types: generics, conditional types, mapped types, template literals, and utility types
- Targets concrete use cases such as typed API clients, form validation, and strongly-typed state management
- Ships with a detailed implementation playbook for complex patterns
Limitations
- Core detail lives in an external resources/implementation-playbook.md file not included here
- Of little help for routine TypeScript tasks that don't require complex type logic
- Assumes prior comfort with baseline TypeScript
Use it when designing reusable type utilities, generic components, or complex type inference in a TypeScript project.
Avoid it for tasks unrelated to advanced TypeScript types, such as tooling setup or work in other languages.
Security analysis
SafeInstruction-only skill with no declared tools and no executable commands. It provides TypeScript guidance and references a resource file, with no destructive, exfiltration, or obfuscation behavior observed.
No concerns found
How this analysis is madeExamples
Help me design a type-safe API client in TypeScript that infers request and response types from a route map using generics and conditional types.Write a template literal type that extracts URL parameters from a route string like '/users/:id/posts/:postId' and produces a typed params object.Create a DeepPartial utility type with mapped and conditional types that handles nested objects and arrays, and explain its trade-offs.version: 4.1.0-fractal name: typescript-advanced-types description: Master TypeScript's advanced type system including generics, conditional types, mapped types, template literals, and utility types for building type-safe applications. Use when implementing complex type logic, creating reusable type utilities, or ensuring compile-time type safety in TypeScript projects.
TypeScript Advanced Types
Comprehensive guidance for mastering TypeScript's advanced type system including generics, conditional types, mapped types, template literal types, and utility types for building robust, type-safe applications.
Use this skill when
- Building type-safe libraries or frameworks
- Creating reusable generic components
- Implementing complex type inference logic
- Designing type-safe API clients
- Building form validation systems
- Creating strongly-typed configuration objects
- Implementing type-safe state management
- Migrating JavaScript codebases to TypeScript
Do not use this skill when
- The task is unrelated to typescript advanced types
- You need a different domain or tool outside this scope
Instructions
- Clarify goals, constraints, and required inputs.
- Apply relevant best practices and validate outcomes.
- Provide actionable steps and verification.
- If detailed examples are required, open
resources/implementation-playbook.md.
Resources
resources/implementation-playbook.mdfor detailed patterns and examples.
🧠 Knowledge Modules (Fractal Skills)
1. implementation-playbook
From the file to a first result
The download contains exactly the content displayed on this page. This copy may differ from the latest version in the source repository.
View the source and supporting filesThis download contains SKILL.md only. Any scripts, references, templates and dependencies are not included. Get the required files from the source, preserving their directory structure, before continuing.
1. Download the file
Download SKILL.mdFrom the root of a test project, save the file as .skill-downloads/typescript-advanced-types-mm78noho/SKILL.md, or use the command below. This folder is for inspecting the skill before installation.
Command for macOS/Linux or WSL: requires a POSIX shell and curl. On Windows without WSL, use the download button and create the folder manually.
mkdir -p '.skill-downloads/typescript-advanced-types-mm78noho' && curl --fail --show-error --location 'https://skills-guides.com/api/skills/typescript-advanced-types-mm78noho/download' --output '.skill-downloads/typescript-advanced-types-mm78noho/SKILL.md.part' && mv '.skill-downloads/typescript-advanced-types-mm78noho/SKILL.md.part' '.skill-downloads/typescript-advanced-types-mm78noho/SKILL.md'2. Check prerequisites
Read SKILL.md before using it. If it references scripts or external services, inspect them and prepare the required access in your test environment.
No recognized prerequisites section in this file. This does not mean it is self-contained: libraries, tools and access requirements may be mentioned elsewhere in the content or source repository.
The platforms on this page are catalog indications. The paths below follow tool documentation; they do not prove this skill has been run in those tools. No minimum tool version is confirmed for this listing.
3. Load the skill
After inspection, copy the complete folder into your project using one of the commands below, then open a new tool session. The command stops if a folder with the same name already exists: compare the files before replacing it.
Claude Code
test -f '.skill-downloads/typescript-advanced-types-mm78noho/SKILL.md' && test -s '.skill-downloads/typescript-advanced-types-mm78noho/SKILL.md' && mkdir -p '.claude/skills' && test ! -e '.claude/skills/typescript-advanced-types' && cp -R '.skill-downloads/typescript-advanced-types-mm78noho' '.claude/skills/typescript-advanced-types'Cursor
test -f '.skill-downloads/typescript-advanced-types-mm78noho/SKILL.md' && test -s '.skill-downloads/typescript-advanced-types-mm78noho/SKILL.md' && mkdir -p '.cursor/skills' && test ! -e '.cursor/skills/typescript-advanced-types' && cp -R '.skill-downloads/typescript-advanced-types-mm78noho' '.cursor/skills/typescript-advanced-types'Codex
test -f '.skill-downloads/typescript-advanced-types-mm78noho/SKILL.md' && test -s '.skill-downloads/typescript-advanced-types-mm78noho/SKILL.md' && mkdir -p '.agents/skills' && test ! -e '.agents/skills/typescript-advanced-types' && cp -R '.skill-downloads/typescript-advanced-types-mm78noho' '.agents/skills/typescript-advanced-types'OpenSkills
OpenSkills must already be installed. The local install/read procedure is checked with OpenSkills 1.5.0, which requires Node.js ≥ 20.6.0. Catalog slugs are not resolved automatically.
Official OpenSkills installationopenskills install './.skill-downloads/typescript-advanced-types-mm78noho'openskills read 'typescript-advanced-types-mm78noho'Reading should display the installed file content and its base directory. It does not run the skill or install its dependencies.
For an agent that reads AGENTS.md, then sync the index. This command changes AGENTS.md: review the diff before using it.
openskills syncManual method or another tool: attach SKILL.md to a conversation, or open it in an agent that can read files. Include any required supporting resources. No universal folder is recognized by every tool.
4. Try a first task
Use a short, synthetic input: an API endpoint, a small document or an interface brief. In a new conversation, attach the file or give the agent its path, then adapt this request:
Read .skill-downloads/typescript-advanced-types-mm78noho/SKILL.md and apply its instructions to this example: [describe a test input]. Identify any missing files, dependencies or access. Produce the result requested by the skill without inventing data or running unreviewed scripts.Expected result: output matching the skill instructions, or a precise list of missing prerequisites. A read confirmation alone does not validate a first use. If an external resource is unavailable, that path remains untested.
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