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Official agent skill

Skillshare Implement Feature

by JetBrains in JetBrains/skills

Implement a feature from a spec file or description using TDD workflow.

OfficialNo licenceAuto-check passedTesting & QA

Install Skillshare Implement Feature

skills CLI
$ npx skills add JetBrains/skills --skill skillshare-implement-feature -a claude-code

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

GitHub CLI
$ gh skill install JetBrains/skills skillshare-implement-feature --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/JetBrains/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/implement-feature .claude/skills/skillshare-implement-feature && 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
skillshare-implement-feature
GitHub stars
364
Used in
1 other repo
Token cost
~2k tokens
SKILL.md length
616 words
Files
1
Skills in repo
77
Repo updated
First seen
Licence
None found

At a glance

Implement a feature from a spec file or description using TDD workflow.

  • Works in 7 steps: Understand Requirements → Identify Affected Files → Write Failing Tests First (RED) → …
  • The user asks to: add a new CLI command
  • SKILL.md covers Workflow, Project Patterns Reference and Rules
  • Calls make and go

What it does

Skillshare Implement Feature is an agent skill from JetBrains/skills, published by the product's own GitHub organization. Implement a feature from a spec file or description using TDD workflow. Use this skill whenever the user asks to: add a new CLI command, implement a feature from a spec, build new functionality, add a flag, create a new internal package, or write Go code for skillshare. This skill enforces test-first development, proper handler split conventions, oplog instrumentation, and dual-mode (global/project) patterns. If the request involves writing Go code and tests, use this skill — even if the user doesn't explicitly…

Its SKILL.md is about 2k 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 Testing & QA, covering Test-driven development. The repository describes itself as: Curated agent skills collection verified by JetBrains.

When your agent uses it

  • The user asks to: add a new CLI command
  • Implement a feature from a spec
  • Build new functionality
  • Create a new internal package

Example prompts

  • “t explicitly say”
  • “/skillshare-implement-feature”

Requirements

  • Docker

Workflow steps

7 steps, taken from the step headings in SKILL.md.

  1. Understand Requirements
  2. Identify Affected Files
  3. Write Failing Tests First (RED)
  4. Implement (GREEN)
  5. Refactor and Verify
  6. E2E Runbook (Major Features Only)
  7. Stage and Report

What it can do on your machine

Read from SKILL.md and the folder at commit e0f258b. 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:

    • make
    • go

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

  • Network

    No URLs in SKILL.md.

    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

Skillshare Implement Feature loads about 2k tokens when it runs. Until then it costs about 141 tokens; SKILL.md has 616 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~141
When it runs · the whole SKILL.md, loaded when a task matches
~2k

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

Without a licence we can't republish the file, so here is its outline and opening line. It has 616 words (~1,979 tokens).

“Implement a feature following TDD workflow. $ARGUMENTS is a spec file path (e.g., specs/my-feature.md) or a plain-text feature description.”

— opening of SKILL.md by JetBrains
name
skillshare-implement-feature
argument-hint
[spec-file-path | feature description]
targets
claude, codex
metadata.short-description
Implement features with TDD
metadata.author
Runkids
metadata.source
https://github.com/runkids/skillshare/tree/main/.skillshare/skills/implement-feature

Read the full SKILL.md on GitHub

Files

Just SKILL.md in implement-feature of JetBrains/skills.

Open the folder on GitHubat commit e0f258b

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in JetBrains/skills, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Skillshare Implement Feature 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.

Skillshare Implement Feature compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Skillshare Implement Feature this skillJetBrains/skills3641 repos~2kAutomated safety check: PassNone
TDDpietheinstrengholt/rssmonster56430 repos~906Automated safety check: PassMIT
TDD WorkflowhellangleZ/burn-in-cceverywhere-ralph11211 repos~2.4kAutomated safety check: PassNone
TDDsanity-io/sanity6.4k20 repos~1kAutomated safety check: PassMIT
Test Driven Developmentfarm-fe/farm5.6k51 repos~2.5kAutomated safety check: PassMIT
Tapd Story PipelineTencentBlueKing/bk-bcs840—~2.6kAutomated safety check: PassCustom licence

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Categories

Questions about Skillshare Implement Feature

What does Skillshare Implement Feature do?

Implement a feature from a spec file or description using TDD workflow. Skillshare Implement Feature is an agent skill from JetBrains/skills, published by the product's own GitHub organization. Implement a feature from a spec file or description using TDD workflow.

When should I use Skillshare Implement Feature?

Skillshare Implement Feature fits situations like: the user asks to: add a new CLI command; implement a feature from a spec; build new functionality; create a new internal package.

How do I install Skillshare Implement Feature in Claude Code?

Run `npx skills add JetBrains/skills --skill skillshare-implement-feature -a claude-code`. Or copy the skill folder (implement-feature in JetBrains/skills) into .claude/skills/skillshare-implement-feature in your project. Claude Code loads it when a task matches its description.

How do I install Skillshare Implement Feature in Codex?

Run `npx skills add JetBrains/skills --skill skillshare-implement-feature -a codex`. Or copy the skill folder (implement-feature in JetBrains/skills) into .agents/skills/skillshare-implement-feature in your project. Codex loads it when a task matches its description.

Can I use Skillshare Implement Feature 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 JetBrains/skills --skill skillshare-implement-feature -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/skillshare-implement-feature, .gemini/skills/skillshare-implement-feature, .github/skills/skillshare-implement-feature and .opencode/skills/skillshare-implement-feature in your project.

What does Skillshare Implement Feature need to run?

Going by SKILL.md and its folder, Skillshare Implement Feature needs the command-line tools its instructions call (make and go). Our summary lists: Docker.

Does Skillshare Implement Feature 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 Skillshare Implement Feature 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 Skillshare Implement Feature use?

No licence was found for Skillshare Implement Feature or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Skillshare Implement Feature use?

About 2k tokens (SKILL.md is roughly 7.9k 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 Skillshare Implement Feature?

Skills that share tags, products or a category with Skillshare Implement Feature: TDD (pietheinstrengholt/rssmonster, 564 stars), TDD Workflow (hellangleZ/burn-in-cceverywhere-ralph, 112 stars), TDD (sanity-io/sanity, 6.4k stars) and Test Driven Development (farm-fe/farm, 5.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Skillshare Implement Feature?

JetBrains (a GitHub organization, an official publisher) maintains it in JetBrains/skills, which has 364 GitHub stars. The repository holds 77 skills in this directory. The repository was last updated on June 29, 2026.

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