Over-Engineering Review
DietrichGebert/ponytail
Reviews a diff only for unnecessary complexity and lists what to delete or shrink, one numbered line per finding with the location, the cut and its replacement.
Review code for unnecessary complexity and simplify it. An agent skill from SeifBenayed/cloclo.
Install Simplify
$ npx skills add SeifBenayed/cloclo --skill simplify -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install SeifBenayed/cloclo simplify --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/SeifBenayed/cloclo.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/simplify .claude/skills/simplify && rm -rf skills-srcUse ~/.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/
Install the "simplify" agent skill from https://github.com/SeifBenayed/cloclo/tree/main/.claude/skills/simplify into .claude/skills/simplify/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "simplify", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/SeifBenayed/cloclo/tree/main/.claude/skills/simplifyType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add SeifBenayed/cloclo --skill simplify -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install SeifBenayed/cloclo simplify --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/SeifBenayed/cloclo.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/simplify .agents/skills/simplify && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "simplify" agent skill from https://github.com/SeifBenayed/cloclo/tree/main/.claude/skills/simplify into .agents/skills/simplify/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "simplify", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add SeifBenayed/cloclo --skill simplify -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install SeifBenayed/cloclo simplify --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/SeifBenayed/cloclo.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/simplify .cursor/skills/simplify && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "simplify" agent skill from https://github.com/SeifBenayed/cloclo/tree/main/.claude/skills/simplify into .cursor/skills/simplify/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "simplify", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/SeifBenayed/cloclo.git --path .claude/skills/simplify--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add SeifBenayed/cloclo --skill simplify -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install SeifBenayed/cloclo simplify --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/SeifBenayed/cloclo.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/simplify .gemini/skills/simplify && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "simplify" agent skill from https://github.com/SeifBenayed/cloclo/tree/main/.claude/skills/simplify into .gemini/skills/simplify/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "simplify", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install SeifBenayed/cloclo simplifyInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add SeifBenayed/cloclo --skill simplify -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/SeifBenayed/cloclo.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/simplify .github/skills/simplify && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "simplify" agent skill from https://github.com/SeifBenayed/cloclo/tree/main/.claude/skills/simplify into .github/skills/simplify/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "simplify", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add SeifBenayed/cloclo --skill simplify -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install SeifBenayed/cloclo simplify --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/SeifBenayed/cloclo.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/simplify .opencode/skills/simplify && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "simplify" agent skill from https://github.com/SeifBenayed/cloclo/tree/main/.claude/skills/simplify into .opencode/skills/simplify/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "simplify", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
simplify- GitHub stars
- 114
- Token cost
- ~430 tokens
- SKILL.md length
- 210 words
- Files
- 1
- Skills in repo
- 6
- Repo updated
- First seen
- Licence
- MIT
At a glance
Review code for unnecessary complexity and simplify it. An agent skill from SeifBenayed/cloclo.
- Works in 7 steps: Over-abstraction — helpers, utilities,… → Unnecessary indirection — callback… → Defensive overkill — error handling for… → …
- The user wants to clean up code
- SKILL.md covers What to look for, Principles and Process
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Simplify is an agent skill from SeifBenayed/cloclo. Review code for unnecessary complexity and simplify it. Use when the user wants to clean up code, reduce complexity, remove dead code, or make code more readable.
Its SKILL.md is about 430 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 Development, covering Code simplification, Code review and Refactoring. The repository describes itself as: Open-source Claude Code SDK — single-file CLIs in Node.js, Python, Go, Rust that use directly. The licence is MIT.
When your agent uses it
- The user wants to clean up code
- Reduce complexity
- Remove dead code
- Make code more readable
Example prompts
- “/simplify”
Requirements
- Pre-approved tools (allowed-tools): Bash, Read, Grep, Glob, Edit, Write
Workflow steps
7 steps, taken from the first numbered list in SKILL.md.
- Over-abstraction — helpers, utilities, or wrapper functions used only once. Inline them.
- Unnecessary indirection — callback chains, event buses, or service layers that just pass data through.
- Defensive overkill — error handling for impossible cases, null checks deep inside trusted internal code.
- Dead code — unused imports, unreachable branches, commented-out blocks, unused variables.
- Complex conditionals — nested if/else that could be early returns, switch statements that could be lookups.
- Premature generalization — config objects for one use case, plugin systems with one plugin, factory patterns for one type.
- Redundant comments — comments that restate the code instead of explaining why.
What it can do on your machine
Read from SKILL.md and the folder at commit 00f5195. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
BashReadGrepGlobEditWrite
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
Simplify loads about 430 tokens when it runs. Until then it costs about 43 tokens; SKILL.md has 210 words of instructions outside code blocks.
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: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
- NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
allowed-tools: Bash, Read, Grep, Glob, Edit, Write
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
GitHub didn't answer just now, so the file isn't shown here. It has 210 words (~430 tokens).
- name
- simplify
- allowed-tools
- Bash, Read, Grep, Glob, Edit, Write
Files
Just SKILL.md in .claude/skills/simplify of SeifBenayed/cloclo.
Open the folder on GitHubat commit 00f5195
Compare with similar skills
Simplify 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Simplify this skillSeifBenayed/cloclo | 114 | — | ~430 | Automated safety check: Notes | MIT | |
| Over-Engineering ReviewDietrichGebert/ponytail | 158k | — | ~1.3k | Automated safety check: Pass | MIT | |
| Review And Simplify ChangesDimillian/Skills | 4k | — | ~2k | Automated safety check: Pass | MIT | |
| Simplify Codetobihagemann/turbo | 407 | — | ~3.5k | Automated safety check: Pass | MIT | |
| PonytailDavidObando/gsharp | 565 | 8 repos | ~1.7k | Automated safety check: Pass | MIT | |
| Ponytail Lazy Developer ModeDietrichGebert/ponytail | 158k | — | ~871 | Automated safety check: Pass | MIT |
Similar skills
Review And Simplify Changes
Dimillian/Skills
Review a git diff or explicit file scope for reuse, code quality, efficiency, clarity, and standards issues, then optionally apply safe Codex-driven fixes.
Simplify Code
tobihagemann/turbo
Run a multi-agent review of changed files for scope, reuse, quality, efficiency, clarity, and altitude issues followed by fixes.
Ponytail
DavidObando/gsharp
Forces the laziest solution that actually works, simplest, shortest, most minimal.
Ponytail Lazy Developer Mode
DietrichGebert/ponytail
Makes the agent pick the laziest solution that works: skip unneeded work, reuse what exists, prefer the standard library and platform features, and keep diffs small.
Dignified Python Standards
docling-project/docling
Applies opinionated production Python conventions chosen by the project's Python version: modern type syntax, pathlib, explicit checks and interface guidance.
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Questions about Simplify
What does Simplify do?
Review code for unnecessary complexity and simplify it. An agent skill from SeifBenayed/cloclo. Simplify is an agent skill from SeifBenayed/cloclo. Review code for unnecessary complexity and simplify it.
When should I use Simplify?
Simplify fits situations like: the user wants to clean up code; reduce complexity; remove dead code; make code more readable.
How do I install Simplify in Claude Code?
Run `npx skills add SeifBenayed/cloclo --skill simplify -a claude-code`. Or copy the skill folder (.claude/skills/simplify in SeifBenayed/cloclo) into .claude/skills/simplify in your project. Claude Code loads it when a task matches its description.
How do I install Simplify in Codex?
Run `npx skills add SeifBenayed/cloclo --skill simplify -a codex`. Or copy the skill folder (.claude/skills/simplify in SeifBenayed/cloclo) into .agents/skills/simplify in your project. Codex loads it when a task matches its description.
Can I use Simplify 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 SeifBenayed/cloclo --skill simplify -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/simplify, .gemini/skills/simplify, .github/skills/simplify and .opencode/skills/simplify in your project.
What does Simplify need to run?
SKILL.md names no scripts, command-line tools or credentials: Simplify is instructions for the agent only. Its frontmatter pre-approves these tools: Bash, Read, Grep, Glob, Edit, Write.
Does Simplify 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 Simplify safe to install?
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
What licence does Simplify use?
Simplify 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 Simplify use?
About 430 tokens (SKILL.md is roughly 1.7k 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 Simplify?
Skills that share tags, products or a category with Simplify: Over-Engineering Review (DietrichGebert/ponytail, 158k stars), Review And Simplify Changes (Dimillian/Skills, 4k stars), Simplify Code (tobihagemann/turbo, 407 stars) and Ponytail (DavidObando/gsharp, 565 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Simplify?
SeifBenayed (a GitHub user) maintains it in SeifBenayed/cloclo, which has 114 GitHub stars. The repository holds 6 skills in this directory. The repository was last updated on April 5, 2026.
Source: SeifBenayed/cloclo on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.