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Agent skill

Implement

by codewhale-hq in codewhale-hq/Codewhale

Carry an authorized, defined request or approved plan through scoped edits and proportionate verification.

MITAuto-check passed

Install Implement

skills CLI
$ npx skills add codewhale-hq/Codewhale --skill implement -a claude-code

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

GitHub CLI
$ gh skill install codewhale-hq/Codewhale implement --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/codewhale-hq/Codewhale.git skills-src && mkdir -p .claude/skills && cp -r skills-src/crates/tui/assets/skills/implement .claude/skills/implement && 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
implement
GitHub stars
41k
Token cost
~190 tokens
SKILL.md length
80 words
Files
1
Skills in repo
63
Repo updated
First seen
Licence
MIT

At a glance

Carry an authorized, defined request or approved plan through scoped edits and proportionate verification.

  • Works in 4 steps: Confirm scope and acceptance criteria. → Make the smallest coherent change set. → Run the narrowest useful verification. → …
  • Tasks that involve Authorization and RBAC
  • SKILL.md covers When to use, Non-goals, Workflow and Failure mode
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Implement is an agent skill from codewhale-hq/Codewhale. Carry an authorized, defined request or approved plan through scoped edits and proportionate verification. Skill loading is not write authorization by itself.

Its SKILL.md is about 190 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: Open-source coding agent for your terminal, built in Rust and on a journey of continuous community improvement. Issues and PRs welcome. The licence is MIT.

When your agent uses it

  • Tasks that involve Authorization and RBAC

Example prompts

  • “/implement”

Workflow steps

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

  1. Confirm scope and acceptance criteria.
  2. Make the smallest coherent change set.
  3. Run the narrowest useful verification.
  4. Report what changed and what remains.

What it can do on your machine

Read from SKILL.md and the folder at commit ad333fd. 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

    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

Implement loads about 190 tokens when it runs. Until then it costs about 42 tokens; SKILL.md has 80 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~42
When it runs · the whole SKILL.md, loaded when a task matches
~190

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 codewhale-hq/Codewhale at commit ad333fd, republished under its MIT licence (© codewhale-hq). 80 words, ~190 tokens.

Download SKILL.mdSave it as .claude/skills/implement/SKILL.md (or your agent's skills folder).
name
implement
description
Carry an authorized, defined request or approved plan through scoped edits and proportionate verification. Skill loading is not write authorization by itself.
invocation
model+user

Implement

When to use

Use for scoped implementation of a clear request or approved plan.

Non-goals

  • Loading this skill is not write authorization by itself.
  • Do not expand scope without saying so.
  • Do not skip verification after risky edits.

Workflow

  1. Confirm scope and acceptance criteria.
  2. Make the smallest coherent change set.
  3. Run the narrowest useful verification.
  4. Report what changed and what remains.

Failure mode

If blocked by missing permissions or failing verification, stop and report evidence.

© codewhale-hq, MIT. 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 crates/tui/assets/skills/implement of codewhale-hq/Codewhale.

Open the folder on GitHubat commit ad333fd

Compare with similar skills

Implement 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.

Implement compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Implement this skillcodewhale-hq/Codewhale41k—~190Automated safety check: PassMIT
Configuring Horizoncoollabsio/coolify63k4 repos~898Automated safety check: PassMIT
SageMaker IAM Role Preflighthuggingface/skills11k1 repos~1.8kAutomated safety check: PassApache-2.0
Ccfddl X Postsccfddl/ccf-deadlines9.4k—~4.2kAutomated safety check: PassMIT
K8s Security PoliciesCybereason-Public/owLSM28011 repos~2kAutomated safety check: PassGPL-2.0
Payloadpayloadcms/payload45k5 repos~6.2kAutomated safety check: PassMIT

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  • Sub-Agent Delegation

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Questions about Implement

What does Implement do?

Carry an authorized, defined request or approved plan through scoped edits and proportionate verification. Implement is an agent skill from codewhale-hq/Codewhale. Carry an authorized, defined request or approved plan through scoped edits and proportionate verification.

When should I use Implement?

Implement fits situations like: tasks that involve Authorization and RBAC.

How do I install Implement in Claude Code?

Run `npx skills add codewhale-hq/Codewhale --skill implement -a claude-code`. Or copy the skill folder (crates/tui/assets/skills/implement in codewhale-hq/Codewhale) into .claude/skills/implement in your project. Claude Code loads it when a task matches its description.

How do I install Implement in Codex?

Run `npx skills add codewhale-hq/Codewhale --skill implement -a codex`. Or copy the skill folder (crates/tui/assets/skills/implement in codewhale-hq/Codewhale) into .agents/skills/implement in your project. Codex loads it when a task matches its description.

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

What does Implement need to run?

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

Does Implement 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 Implement 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 Implement use?

Implement 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 Implement use?

About 190 tokens (SKILL.md is roughly 760 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 Implement?

Skills that share tags, products or a category with Implement: Configuring Horizon (coollabsio/coolify, 63k stars), SageMaker IAM Role Preflight (huggingface/skills, 11k stars), Ccfddl X Posts (ccfddl/ccf-deadlines, 9.4k stars) and K8s Security Policies (Cybereason-Public/owLSM, 280 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Implement?

codewhale-hq (a GitHub organization) maintains it in codewhale-hq/Codewhale, which has 41,067 GitHub stars. The repository holds 63 skills in this directory. The repository was last updated on October 7, 2026.

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