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Agent skill

Frontend Builder

by WeaveMindAI in WeaveMindAI/weft

Builds the project's frontend under front/ end to end, unsupervised.

Custom licenceAuto-check passedFrontend & Design

Install Frontend Builder

skills CLI
$ npx skills add WeaveMindAI/weft --skill frontend-builder -a claude-code

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

GitHub CLI
$ gh skill install WeaveMindAI/weft frontend-builder --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/WeaveMindAI/weft.git skills-src && mkdir -p .claude/skills && cp -r skills-src/tangle/cline/.cline/skills/frontend-builder .claude/skills/frontend-builder && 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
frontend-builder
GitHub stars
2k
Token cost
~2.6k tokens
SKILL.md length
1,755 words
Files
1
Skills in repo
36
Repo updated
First seen
Licence
Custom licence

At a glance

Builds the project's frontend under front/ end to end, unsupervised.

  • Works in 5 steps: Read the weft-frontend skill: the… → Read the weft-consumers skill for the… → Study the project before writing: which… → …
  • Tasks that involve Design systems
  • SKILL.md covers Running commands, Your contract, Scope and Method, plus 2 more sections
  • Calls pnpm; needs WEFT_ROUTE_KEY and WEFT_TOKEN

What it does

Frontend Builder is an agent skill from WeaveMindAI/weft. Builds the project's frontend under front/ end to end, unsupervised. Dispatched by Tangle with the pages a person must use and the signals behind them. Reads the weft-frontend and weft-consumers skills, builds on the default stack (pnpm, SvelteKit, PostgreSQL, BetterAuth, shadcn-svelte), holds the api token server side, and proves the build and drives the one task as a client of the program before reporting.

Its SKILL.md is about 2.6k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Frontend & Design, covering Design systems and Backend development. It works with pnpm, PostgreSQL, Svelte and SvelteKit. The repository describes itself as: A programming language for AI orchestrations.

When your agent uses it

  • Tasks that involve Design systems
  • Tasks that involve Backend development

Example prompts

  • “Use the frontend-builder skill to build the project's frontend under front/ end to end, unsupervised”
  • “/frontend-builder”

Requirements

  • A credential in WEFT_ROUTE_KEY
  • A credential in WEFT_TOKEN

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Read the weft-frontend skill: the default stack and the house rules; it beats what you remember.
  2. Read the weft-consumers skill for the exact doors, tokens, and payload shapes.
  3. Study the project before writing: which routes and signals exist (the listing shape and the route URLs), whether [the program] carries a…
  4. Build under front/. Start with the scaffold chain in the weft-frontend skill and follow it exactly: every command in it is quiet and…
  5. Produce [the proof], defined in the next section.

What it can do on your machine

Read from SKILL.md and the folder at commit 6e28f31. 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

    Shell commands in SKILL.md call:

    • pnpm

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

  • Network

    No URLs in SKILL.md. Its commands use pnpm, which can reach the network depending on how they are called.

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

  • Credentials

    Names these keys or tokens, usually read from environment variables:

    • WEFT_ROUTE_KEY
    • WEFT_TOKEN

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

Context cost

Frontend Builder loads about 2.6k tokens when it runs. Until then it costs about 107 tokens; SKILL.md has 1,755 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~107
When it runs · the whole SKILL.md, loaded when a task matches
~2.6k

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,755 words (~2,603 tokens).

“You are the frontend specialist for this weft project. Tangle dispatched you to build the frontend a person uses, prove it runs, and report back. You work alone to the end; nothing you write is checked until your report lands…”

— opening of SKILL.md by WeaveMindAI, Custom licence
name
frontend-builder

Read the full SKILL.md on GitHub

Files

Just SKILL.md in tangle/cline/.cline/skills/frontend-builder of WeaveMindAI/weft.

Open the folder on GitHubat commit 6e28f31

Compare with similar skills

Frontend Builder 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.

Frontend Builder compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Frontend Builder this skillWeaveMindAI/weft2k—~2.6kAutomated safety check: PassCustom licence
Kampsy UIkampsy/ui287—~3.6kAutomated safety check: PassMIT
Frontend Guidelightly-ai/lightly-studio896—~2.9kAutomated safety check: PassApache-2.0
Cosscrafter-station/petdex4.2k—~1.4kAutomated safety check: PassMIT
Shadcn Svelteexceptionless/Exceptionless2.5k—~3.6kAutomated safety check: PassApache-2.0
Svelte Code Writerkampsy/ui2872 repos~490Automated safety check: PassMIT

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  • Kampsy UI

    kampsy/ui

    Consumer guide to build UIs with kampsy-ui (Svelte 5 + Tailwind v4, Geist-inspired).

    287 GitHub stars~3.6k tokensUpdated 9 days ago
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  • Frontend Guide

    lightly-ai/lightly-studio

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    Frontend & DesignAuto-check passed

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    Frontend & DesignAuto-check passed

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More from WeaveMindAI/weft

All 36 skills in this repo

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  • Weft Consumers

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  • Weft Metering

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  • Weft Sdp

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  • Weft Frontend

    WeaveMindAI/weft

    Read when the user wants a page, app or site for the program, and before dispatching the frontend-builder: the verified scaffold commands, the default stack (pnpm, SvelteKit, PostgreSQL, BetterAuth…

    2k GitHub stars~8k tokensUpdated yesterday
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Works with

Categories

Questions about Frontend Builder

What does Frontend Builder do?

Builds the project's frontend under front/ end to end, unsupervised. Frontend Builder is an agent skill from WeaveMindAI/weft. Builds the project's frontend under front/ end to end, unsupervised.

When should I use Frontend Builder?

Frontend Builder fits situations like: tasks that involve Design systems; tasks that involve Backend development.

How do I install Frontend Builder in Claude Code?

Run `npx skills add WeaveMindAI/weft --skill frontend-builder -a claude-code`. Or copy the skill folder (tangle/cline/.cline/skills/frontend-builder in WeaveMindAI/weft) into .claude/skills/frontend-builder in your project. Claude Code loads it when a task matches its description.

How do I install Frontend Builder in Codex?

Run `npx skills add WeaveMindAI/weft --skill frontend-builder -a codex`. Or copy the skill folder (tangle/cline/.cline/skills/frontend-builder in WeaveMindAI/weft) into .agents/skills/frontend-builder in your project. Codex loads it when a task matches its description.

Can I use Frontend Builder 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 WeaveMindAI/weft --skill frontend-builder -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/frontend-builder, .gemini/skills/frontend-builder, .github/skills/frontend-builder and .opencode/skills/frontend-builder in your project.

What does Frontend Builder need to run?

Going by SKILL.md and its folder, Frontend Builder needs the command-line tools its instructions call (pnpm) and credentials named WEFT_ROUTE_KEY and WEFT_TOKEN. Our summary lists: A credential in WEFT_ROUTE_KEY; A credential in WEFT_TOKEN.

Does Frontend Builder access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Frontend Builder 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 Frontend Builder use?

Frontend Builder has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Frontend Builder use?

About 2.6k tokens (SKILL.md is roughly 10k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Frontend Builder?

Skills that share tags, products or a category with Frontend Builder: Kampsy UI (kampsy/ui, 287 stars), Frontend Guide (lightly-ai/lightly-studio, 896 stars), Coss (crafter-station/petdex, 4.2k stars) and Shadcn Svelte (exceptionless/Exceptionless, 2.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Frontend Builder?

WeaveMindAI (a GitHub organization) maintains it in WeaveMindAI/weft, which has 1,994 GitHub stars. The repository holds 36 skills in this directory. The repository was last updated on October 6, 2026.

Source: WeaveMindAI/weft on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.