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Agent skill

Type Only Imports

by thedaviddias in thedaviddias/Front-End-Checklist

A skill your agent uses when auditing import statements in TypeScript files, setting up a new TypeScript project, or investigating unexpected bundle inclusions from type-only dependencies.

MITAuto-check passed

Install Type Only Imports

skills CLI
$ npx skills add thedaviddias/Front-End-Checklist --skill type-only-imports -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install thedaviddias/Front-End-Checklist type-only-imports --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/type-only-imports .claude/skills/type-only-imports && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
type-only-imports
GitHub stars
74k
Token cost
~558 tokens
SKILL.md length
252 words
Files
2 (incl. references)
Skills in repo
390
Repo updated
First seen
Licence
MIT

At a glance

A skill your agent uses when auditing import statements in TypeScript files, setting up a new TypeScript project, or investigating unexpected bundle inclusions from type-only dependencies.

  • Auditing import statements in TypeScript files
  • SKILL.md covers Quick Reference, Check, Fix and Explain, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Setting up a new TypeScript project

What it does

Type Only Imports is an agent skill from thedaviddias/Front-End-Checklist. Use when auditing import statements in TypeScript files, setting up a new TypeScript project, or investigating unexpected bundle inclusions from type-only dependencies.

Its SKILL.md is about 560 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/rule.md`).

It works with TypeScript. The repository describes itself as: 🗂 The essential checklist for modern web development, for humans and AI agents. The licence is MIT.

When your agent uses it

  • Auditing import statements in TypeScript files
  • Setting up a new TypeScript project
  • Investigating unexpected bundle inclusions from type-only dependencies

Example prompts

  • “/type-only-imports”

What it can do on your machine

Read from SKILL.md and the folder at commit e8d14d0. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Links to these hosts (documentation or services it may open):

    • frontendchecklist.io

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Type Only Imports loads about 558 tokens when it runs, and up to ~1.9k if it reads all its reference files. Until then it costs about 47 tokens; SKILL.md has 252 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~47
When it runs · the whole SKILL.md, loaded when a task matches
~558
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1.9k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from thedaviddias/Front-End-Checklist at commit e8d14d0, republished under its MIT licence (© thedaviddias). 252 words, ~558 tokens.

Download SKILL.mdSave it as .claude/skills/type-only-imports/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
type-only-imports
description
Use when auditing import statements in TypeScript files, setting up a new TypeScript project, or investigating unexpected bundle inclusions from type-only dependencies.
metadata.category
javascript
metadata.priority
low
metadata.difficulty
beginner
metadata.estimatedTime
10
metadata.source
frontendchecklist.io
metadata.url
https://frontendchecklist.io/rules/javascript/type-only-imports

Use import type for type-only imports

Regular imports cause the JavaScript runtime to evaluate and execute the imported module even when only a TypeScript type from that module is used. This can increase bundle size, introduce unintended side effects, and create circular dependency issues that are otherwise avoidable. Using import type makes the erased-at-runtime nature of type imports explicit and enables bundlers and the TypeScript compiler to handle them optimally.

Quick Reference

  • import type is erased entirely at compile time — no runtime module evaluation
  • Prevents accidentally importing a value when only a type is needed
  • Reduces circular dependency issues caused by type-only relationships
  • verbatimModuleSyntax in TypeScript 5 enforces this automatically

Check

Review the import statements in this TypeScript file and identify any imports where only types or interfaces are used. These should use import type instead of a regular import.

Fix

Convert the identified regular imports to import type where the imported binding is only used as a TypeScript type annotation and not as a runtime value.

Explain

Explain the difference between import and import type in TypeScript, why type-only imports should be declared explicitly, and how verbatimModuleSyntax enforces this at the compiler level.

Code Review

Inspect all import statements in this file. For each import, check whether the imported name appears only in type positions (annotations, generics, implements clauses) versus runtime positions (function calls, new, typeof). Flag any regular import that is used only as a type.

For full implementation details, code examples, and framework-specific guidance, see references/rule.md.

Rule page: https://frontendchecklist.io/rules/javascript/type-only-imports

© thedaviddias, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (references) in skills/type-only-imports of thedaviddias/Front-End-Checklist.

  • SKILL.md
  • references/rule.md

Open the folder on GitHubat commit e8d14d0

Compare with similar skills

Type Only Imports next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Type Only Imports compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Type Only Imports this skillthedaviddias/Front-End-Checklist74k—~558Automated safety check: PassMIT
MCP Server Builderanthropics/skills180k63 repos~2.3kAutomated safety check: PassApache-2.0
Web Artifacts Builderanthropics/skills180k40 repos~769Automated safety check: PassApache-2.0
Typescript Advanced Typesrolling-scopes/rsschool-app10k25 repos~4.2kAutomated safety check: PassMPL-2.0
Code Review ChecklistshareAI-lab/learn-claude-code78k4 repos~1.1kAutomated safety check: PassMIT
MCP Server BuildershareAI-lab/learn-claude-code78k4 repos~1.2kAutomated safety check: PassMIT

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Works with

Questions about Type Only Imports

What does Type Only Imports do?

A skill your agent uses when auditing import statements in TypeScript files, setting up a new TypeScript project, or investigating unexpected bundle inclusions from type-only dependencies. Type Only Imports is an agent skill from thedaviddias/Front-End-Checklist. Use when auditing import statements in TypeScript files, setting up a new TypeScript project, or investigating unexpected bundle inclusions from type-only dependencies.

When should I use Type Only Imports?

Type Only Imports fits situations like: auditing import statements in TypeScript files; setting up a new TypeScript project; investigating unexpected bundle inclusions from type-only dependencies.

How do I install Type Only Imports in Claude Code?

Run `npx skills add thedaviddias/Front-End-Checklist --skill type-only-imports -a claude-code`. Or copy the skill folder (skills/type-only-imports in thedaviddias/Front-End-Checklist) into .claude/skills/type-only-imports in your project. Claude Code loads it when a task matches its description.

How do I install Type Only Imports in Codex?

Run `npx skills add thedaviddias/Front-End-Checklist --skill type-only-imports -a codex`. Or copy the skill folder (skills/type-only-imports in thedaviddias/Front-End-Checklist) into .agents/skills/type-only-imports in your project. Codex loads it when a task matches its description.

Can I use Type Only Imports in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add thedaviddias/Front-End-Checklist --skill type-only-imports -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/type-only-imports, .gemini/skills/type-only-imports, .github/skills/type-only-imports and .opencode/skills/type-only-imports in your project.

What does Type Only Imports need to run?

SKILL.md names no scripts, command-line tools or credentials: Type Only Imports is instructions for the agent only.

Does Type Only Imports access the network?

SKILL.md names 1 domain. As links in the text: frontendchecklist.io. This is read from the text; nothing was executed.

Is Type Only Imports safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Type Only Imports use?

Type Only Imports is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Type Only Imports use?

About 558 tokens (SKILL.md is roughly 2.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.3k tokens, read only when the agent opens those files.

What are the alternatives to Type Only Imports?

Skills that share tags, products or a category with Type Only Imports: MCP Server Builder (anthropics/skills, 180k stars), Web Artifacts Builder (anthropics/skills, 180k stars), Typescript Advanced Types (rolling-scopes/rsschool-app, 10k stars) and Code Review Checklist (shareAI-lab/learn-claude-code, 78k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Type Only Imports?

thedaviddias (a GitHub user) maintains it in thedaviddias/Front-End-Checklist, which has 74,421 GitHub stars. The repository holds 390 skills in this directory. The repository was last updated on October 6, 2026.

Source: thedaviddias/Front-End-Checklist on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.