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Agent skill

Code Cleanup

by sandgardenhq in sandgardenhq/sgai

Clean up generated code by questioning why things are there and cross-referencing with GOAL.md, even when tempted to skip due to time pressure or thinking it's "good enough".

Custom licenceAuto-check passed

Install Code Cleanup

skills CLI
$ npx skills add sandgardenhq/sgai --skill code-cleanup -a claude-code

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

GitHub CLI
$ gh skill install sandgardenhq/sgai code-cleanup --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/sandgardenhq/sgai.git skills-src && mkdir -p .claude/skills && cp -r skills-src/cmd/sgai/skel/.sgai/skills/code-cleanup .claude/skills/code-cleanup && 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
code-cleanup
GitHub stars
137
Token cost
~1.2k tokens
SKILL.md length
563 words
Files
1
Skills in repo
53
Repo updated
First seen
Licence
Custom licence

At a glance

Clean up generated code by questioning why things are there and cross-referencing with GOAL.md, even when tempted to skip due to time pressure or thinking it's "good enough".

  • Works in 4 steps: Omit words that are obvious given the type → Omit words that don't disambiguate the… → Omit words that are known from the… → …
  • SKILL.md covers Overview, Why Cleanup Matters, Red Flags - STOP and Process, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Code Cleanup is an agent skill from sandgardenhq/sgai. Clean up generated code by questioning why things are there and cross-referencing with GOAL.md, even when tempted to skip due to time pressure or thinking it's "good enough". After generating code, when tempted to commit messy code, or when noticing clutter that could be removed.

Its SKILL.md is about 1.2k 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: Sandgarden AI Software Factory.

Example prompts

  • “good enough”
  • “/code-cleanup”

Workflow steps

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

  1. Omit words that are obvious given the type
  2. Omit words that don't disambiguate the name
  3. Omit words that are known from the surrounding context
  4. Omit words that don't mean much of anything

What it can do on your machine

Read from SKILL.md and the folder at commit 9efbb7b. 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

Code Cleanup loads about 1.2k tokens when it runs. Until then it costs about 73 tokens; SKILL.md has 563 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~73
When it runs · the whole SKILL.md, loaded when a task matches
~1.2k

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 563 words (~1,181 tokens).

“Review generated code, question the purpose of each part, cross-reference with GOAL.md, and remove or simplify based on good taste and necessity. Do not skip cleanup even if the code is working - cleanup ensures maintainability and alignment with goals.”

— opening of SKILL.md by sandgardenhq, Custom licence
name
code-cleanup

Read the full SKILL.md on GitHub

Files

Just SKILL.md in cmd/sgai/skel/.sgai/skills/code-cleanup of sandgardenhq/sgai.

Open the folder on GitHubat commit 9efbb7b

Compare with similar skills

Code Cleanup 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.

Code Cleanup compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Code Cleanup this skillsandgardenhq/sgai137—~1.2kAutomated safety check: PassCustom licence
Cleanupsimstudioai/sim30k—~1.4kAutomated safety check: PassApache-2.0
Android Clean Architectureaffaan-m/ECC275k4 repos~2.2kAutomated safety check: PassMIT
Cleancatlog22/Claude-Code-Workflow2.1k—~3.2kAutomated safety check: PassMIT
Lovable Cleanupsickn33/agentic-awesome-skills47k1 repos~3.7kAutomated safety check: NotesMIT
Cleanbergside/awesome-design-skills3.1k1 repos~918Automated safety check: PassMIT

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  • Cleanup

    simstudioai/sim

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  • Android Clean Architecture

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    Applies Clean Architecture to Android and Kotlin Multiplatform projects: module layout, dependency rules, UseCases, Repositories and data layer patterns.

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  • Lovable Cleanup

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Questions about Code Cleanup

What does Code Cleanup do?

Clean up generated code by questioning why things are there and cross-referencing with GOAL.md, even when tempted to skip due to time pressure or thinking it's "good enough". Code Cleanup is an agent skill from sandgardenhq/sgai.md, even when tempted to skip due to time pressure or thinking it's "good enough".

How do I install Code Cleanup in Claude Code?

Run `npx skills add sandgardenhq/sgai --skill code-cleanup -a claude-code`. Or copy the skill folder (cmd/sgai/skel/.sgai/skills/code-cleanup in sandgardenhq/sgai) into .claude/skills/code-cleanup in your project. Claude Code loads it when a task matches its description.

How do I install Code Cleanup in Codex?

Run `npx skills add sandgardenhq/sgai --skill code-cleanup -a codex`. Or copy the skill folder (cmd/sgai/skel/.sgai/skills/code-cleanup in sandgardenhq/sgai) into .agents/skills/code-cleanup in your project. Codex loads it when a task matches its description.

Can I use Code Cleanup 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 sandgardenhq/sgai --skill code-cleanup -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/code-cleanup, .gemini/skills/code-cleanup, .github/skills/code-cleanup and .opencode/skills/code-cleanup in your project.

What does Code Cleanup need to run?

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

Does Code Cleanup 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 Code Cleanup 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 Code Cleanup use?

Code Cleanup 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 Code Cleanup use?

About 1.2k tokens (SKILL.md is roughly 4.7k 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 Code Cleanup?

Skills that share tags, products or a category with Code Cleanup: Cleanup (simstudioai/sim, 30k stars), Android Clean Architecture (affaan-m/ECC, 275k stars), Clean (catlog22/Claude-Code-Workflow, 2.1k stars) and Lovable Cleanup (sickn33/agentic-awesome-skills, 47k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Code Cleanup?

sandgardenhq (a GitHub organization) maintains it in sandgardenhq/sgai, which has 137 GitHub stars. The repository holds 53 skills in this directory. The repository was last updated on September 21, 2026.

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