Agent skill

Frontend

by streamband in streamband/hydra-srt

A skill your agent uses for frontend work in webapp (React/TypeScript, UI implementation, tests, and refactors).

Apache-2.0Auto-check passedFrontend & Design

Install Frontend

skills CLI
$ npx skills add streamband/hydra-srt --skill frontend -a claude-code

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

GitHub CLI
$ gh skill install streamband/hydra-srt frontend --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/streamband/hydra-srt.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/frontend .claude/skills/frontend && 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
GitHub stars
146
Token cost
~582 tokens
SKILL.md length
303 words
Files
1
Skills in repo
7
Repo updated
First seen
Licence
Apache-2.0

At a glance

A skill your agent uses for frontend work in webapp (React/TypeScript, UI implementation, tests, and refactors).

  • Works in 8 steps: All new frontend code must be TypeScript… → Existing JavaScript may stay as-is until… → Put shared API/domain types in… → …
  • Frontend work in webapp (React/TypeScript
  • SKILL.md covers When to use, TypeScript policy, Core UI rules and Workflow, plus 1 more section
  • Calls npm

What it does

Frontend is an agent skill from streamband/hydra-srt. Use this skill for frontend work in webapp (React/TypeScript, UI implementation, tests, and refactors).

Its SKILL.md is about 580 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 Refactoring and React components. It works with TypeScript, React, Ant Design and npm. The repository describes itself as: An Open Source Alternative to Haivision SRT Gateway. The licence is Apache-2.0.

When your agent uses it

  • Frontend work in webapp (React/TypeScript
  • UI implementation

Example prompts

  • “/frontend”

Workflow steps

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

  1. All new frontend code must be TypeScript — use .ts / .tsx, not .js / .jsx.
  2. Existing JavaScript may stay as-is until you touch that file; when you edit it meaningfully, prefer migrating the changed parts to…
  3. Put shared API/domain types in web_app/src/types/ (api.ts, errors.ts, routes.ts, interfaces.ts, endpoints.ts).
  4. Put typed API clients in web_app/src/utils/*.ts (see utils/tokensApi.ts).
  5. New page/tab UI: prefer web_app/src/pages///*.tsx; keep legacy .jsx parents as thin wrappers if needed.
  6. Run npm run typecheck and npm run lint before considering frontend work done; CI runs typecheck, lint, build, and unit tests.
  7. // @ts-nocheck is forbidden in frontend source and tests. Do not add it. If encountered, remove it and fix typings (or use narrow…
  8. Tooling under web_app/ (Vite, ESLint, Playwright, scripts/e2e-server.ts) uses TypeScript; npm run typecheck runs both tsconfig.json (app)…

What it can do on your machine

Read from SKILL.md and the folder at commit 8d081f2. 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:

    • npm

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

  • Network

    No URLs in SKILL.md. Its commands use npm, 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 no API keys, tokens, secrets or passwords.

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

Context cost

Frontend loads about 582 tokens when it runs. Until then it costs about 28 tokens; SKILL.md has 303 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~28
When it runs · the whole SKILL.md, loaded when a task matches
~582

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 streamband/hydra-srt at commit 8d081f2, republished under its Apache-2.0 licence (© streamband). 303 words, ~582 tokens.

Download SKILL.mdSave it as .claude/skills/frontend/SKILL.md (or your agent's skills folder).
name
frontend
description
Use this skill for frontend work in web_app (React/TypeScript, UI implementation, tests, and refactors).

Frontend Skill

When to use

Use for any task touching web_app/, React components, TypeScript, styling, or frontend tests.

TypeScript policy

  1. All new frontend code must be TypeScript — use .ts / .tsx, not .js / .jsx.
  2. Existing JavaScript may stay as-is until you touch that file; when you edit it meaningfully, prefer migrating the changed parts to TypeScript (extract to a .tsx module if the file is large).
  3. Put shared API/domain types in web_app/src/types/ (api.ts, errors.ts, routes.ts, interfaces.ts, endpoints.ts).
  4. Put typed API clients in web_app/src/utils/*.ts (see utils/tokensApi.ts).
  5. New page/tab UI: prefer web_app/src/pages/**/**/*.tsx; keep legacy .jsx parents as thin wrappers if needed.
  6. Run npm run typecheck and npm run lint before considering frontend work done; CI runs typecheck, lint, build, and unit tests.
  7. // @ts-nocheck is forbidden in frontend source and tests. Do not add it. If encountered, remove it and fix typings (or use narrow, justified @ts-expect-error on a specific line only when unavoidable).
  8. Tooling under web_app/ (Vite, ESLint, Playwright, scripts/e2e-server.ts) uses TypeScript; npm run typecheck runs both tsconfig.json (app) and tsconfig.node.json (configs/E2E).

Core UI rules

  1. For UI elements, use only Ant Design (antd) components.
  2. Do not build custom replacement UI controls/components when antd provides an equivalent.
  3. Prefer composition and theming of antd components over custom-drawn UI.

Workflow

  1. Read existing page/component patterns before editing.
  2. Keep logic separated from presentation where practical.
  3. Reuse existing shared components/hooks first.
  4. Add or update tests for behavior changes.
  5. Run targeted tests first, then broader checks.

Commands

  • Typecheck: cd web_app && npm run typecheck
  • Unit tests: cd web_app && npm run test:unit
  • Watch unit tests: cd web_app && npm run test:unit:watch
  • E2E tests: cd web_app && npm run test:e2e
  • Lint: cd web_app && npm run lint
  • CI-equivalent (web): cd web_app && npm run typecheck && npm run lint && npm run build && npm run test:unit:ci

© streamband, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .agents/skills/frontend of streamband/hydra-srt.

Open the folder on GitHubat commit 8d081f2

Compare with similar skills

Frontend 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 compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Frontend this skillstreamband/hydra-srt146—~582Automated safety check: PassApache-2.0
Dify Component Writing Guidelanggenius/dify158k—~626Automated safety check: PassCustom licence
South Admin CRUD Generatorsouthliu/south-admin-react580—~1.7kAutomated safety check: PassMIT
Spotpatchhuanglvjing/spotpatch134—~998Automated safety check: PassMIT
React Idiomsirahardianto/awesome-agv157—~3.8kAutomated safety check: PassMIT
Create Custom Widgetmendixlabs/mxcli128—~3.3kAutomated safety check: PassApache-2.0

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Questions about Frontend

What does Frontend do?

A skill your agent uses for frontend work in webapp (React/TypeScript, UI implementation, tests, and refactors). Frontend is an agent skill from streamband/hydra-srt. Use this skill for frontend work in webapp (React/TypeScript, UI implementation, tests, and refactors).

When should I use Frontend?

Frontend fits situations like: frontend work in webapp (React/TypeScript; UI implementation.

How do I install Frontend in Claude Code?

Run `npx skills add streamband/hydra-srt --skill frontend -a claude-code`. Or copy the skill folder (.agents/skills/frontend in streamband/hydra-srt) into .claude/skills/frontend in your project. Claude Code loads it when a task matches its description.

How do I install Frontend in Codex?

Run `npx skills add streamband/hydra-srt --skill frontend -a codex`. Or copy the skill folder (.agents/skills/frontend in streamband/hydra-srt) into .agents/skills/frontend in your project. Codex loads it when a task matches its description.

Can I use Frontend 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 streamband/hydra-srt --skill frontend -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, .gemini/skills/frontend, .github/skills/frontend and .opencode/skills/frontend in your project.

What does Frontend need to run?

Going by SKILL.md and its folder, Frontend needs the command-line tools its instructions call (npm).

Does Frontend access the network?

SKILL.md contains no URLs. Its commands use npm, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Frontend 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 use?

Frontend is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Frontend use?

About 582 tokens (SKILL.md is roughly 2.3k 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?

Skills that share tags, products or a category with Frontend: Dify Component Writing Guide (langgenius/dify, 158k stars), South Admin CRUD Generator (southliu/south-admin-react, 580 stars), Spotpatch (huanglvjing/spotpatch, 134 stars) and React Idioms (irahardianto/awesome-agv, 157 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Frontend?

streamband (a GitHub organization) maintains it in streamband/hydra-srt, which has 146 GitHub stars. The repository holds 7 skills in this directory. The repository was last updated on September 16, 2026.

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