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.
Code review focused exclusively on over-engineering. An agent skill from kortix-ai/suna.
Install Ponytail Review
$ npx skills add kortix-ai/suna --skill ponytail-review -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install kortix-ai/suna ponytail-review --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/kortix-ai/suna.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/ponytail-review .claude/skills/ponytail-review && 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 "ponytail-review" agent skill from https://github.com/kortix-ai/suna/tree/dev/.agents/skills/ponytail-review into .claude/skills/ponytail-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ponytail-review", 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/kortix-ai/suna/tree/dev/.agents/skills/ponytail-reviewType 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 kortix-ai/suna --skill ponytail-review -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install kortix-ai/suna ponytail-review --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kortix-ai/suna.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/ponytail-review .agents/skills/ponytail-review && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "ponytail-review" agent skill from https://github.com/kortix-ai/suna/tree/dev/.agents/skills/ponytail-review into .agents/skills/ponytail-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ponytail-review", 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 kortix-ai/suna --skill ponytail-review -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install kortix-ai/suna ponytail-review --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kortix-ai/suna.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/ponytail-review .cursor/skills/ponytail-review && 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 "ponytail-review" agent skill from https://github.com/kortix-ai/suna/tree/dev/.agents/skills/ponytail-review into .cursor/skills/ponytail-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ponytail-review", 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/kortix-ai/suna.git --path .agents/skills/ponytail-review--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 kortix-ai/suna --skill ponytail-review -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install kortix-ai/suna ponytail-review --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kortix-ai/suna.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/ponytail-review .gemini/skills/ponytail-review && 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 "ponytail-review" agent skill from https://github.com/kortix-ai/suna/tree/dev/.agents/skills/ponytail-review into .gemini/skills/ponytail-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ponytail-review", 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 kortix-ai/suna ponytail-reviewInstalls 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 kortix-ai/suna --skill ponytail-review -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/kortix-ai/suna.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/ponytail-review .github/skills/ponytail-review && 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 "ponytail-review" agent skill from https://github.com/kortix-ai/suna/tree/dev/.agents/skills/ponytail-review into .github/skills/ponytail-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ponytail-review", 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 kortix-ai/suna --skill ponytail-review -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install kortix-ai/suna ponytail-review --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kortix-ai/suna.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/ponytail-review .opencode/skills/ponytail-review && 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 "ponytail-review" agent skill from https://github.com/kortix-ai/suna/tree/dev/.agents/skills/ponytail-review into .opencode/skills/ponytail-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ponytail-review", 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
ponytail-review- GitHub stars
- 20k
- Used in
- 4 other repos
- Token cost
- ~593 tokens
- SKILL.md length
- 258 words
- Files
- 1
- Skills in repo
- 19
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Code review focused exclusively on over-engineering. An agent skill from kortix-ai/suna.
- The user says review for over-engineering
- SKILL.md covers Format, Examples, Scoring and Boundaries
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- What can we delete
What it does
Ponytail Review is an agent skill from kortix-ai/suna. Code review focused exclusively on over-engineering. Finds what to delete: reinvented standard library, unneeded dependencies, speculative abstractions, dead flexibility. One line per finding: location, what to cut, what replaces it. Use when the user says "review for over-engineering", "what can we delete", "is this over-engineered", "simplify review", or invokes /ponytail-review. Complements correctness-focused review, this one only hunts complexity.
Its SKILL.md is about 590 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. The repository describes itself as: The open-source AI Operating System.
When your agent uses it
- The user says review for over-engineering
- What can we delete
- Is this over-engineered
- Simplify review
Example prompts
- “review for over-engineering”
- “what can we delete”
- “is this over-engineered”
- “/ponytail-review”
What it can do on your machine
Read from SKILL.md and the folder at commit 4d2a7e9. 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
Ponytail Review loads about 593 tokens when it runs. Until then it costs about 118 tokens; SKILL.md has 258 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 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 258 words (~593 tokens).
“Review diffs for unnecessary complexity. One line per finding: location, what to cut, what replaces it. The diff's best outcome is getting shorter.”
- name
- ponytail-review
Files
Just SKILL.md in .agents/skills/ponytail-review of kortix-ai/suna.
Open the folder on GitHubat commit 4d2a7e9
Used in 4 other repositories
We found 4 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 4 other GitHub owners. This page covers the copy in kortix-ai/suna, which our catalogue first saw on October 7, 2026.
Compare with similar skills
Ponytail Review 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 |
|---|---|---|---|---|---|---|
| Ponytail Review this skillkortix-ai/suna | 20k | 4 repos | ~593 | Automated safety check: Pass | Custom licence | |
| Ponytail Lazy Developer ModeDietrichGebert/ponytail | 160k | 1 repos | ~873 | Automated safety check: Pass | MIT | |
| PonytailDavidObando/gsharp | 565 | 7 repos | ~1.7k | Automated safety check: Pass | MIT | |
| Code Simplification for ego-litecitrolabs/ego-lite | 17k | — | ~1.2k | Automated safety check: Pass | MIT | |
| Refactor Pass for Simplicitystar-history/star-history | 9.6k | 1 repos | ~168 | Automated safety check: Pass | MIT | |
| RTK Rust Code Simplifierrtk-ai/rtk | 83k | — | ~1.1k | Automated safety check: Pass | Apache-2.0 |
Similar skills
Ponytail
DavidObando/gsharp
Forces the laziest solution that actually works, simplest, shortest, most minimal.
Code Simplification for ego-lite
citrolabs/ego-lite
Finds and implements evidence-backed simplifications in the ego-lite repository, such as dead code, duplicated state and speculative abstractions, without hiding behavior changes.
Refactor Pass for Simplicity
star-history/star-history
Perform a refactor pass focused on simplicity after recent changes. Use when the user asks for a refactor/cleanup pass, simplification, or dead-code removal…
RTK Rust Code Simplifier
rtk-ai/rtk
Reviews RTK's Rust code for over-engineering and verbose patterns, applying idioms like iterator chains and early returns while protecting a specific list of constraints from being simplified away.
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.
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Related
Categories
Questions about Ponytail Review
What does Ponytail Review do?
Code review focused exclusively on over-engineering. An agent skill from kortix-ai/suna. Ponytail Review is an agent skill from kortix-ai/suna. Code review focused exclusively on over-engineering.
When should I use Ponytail Review?
Ponytail Review fits situations like: the user says review for over-engineering; what can we delete; is this over-engineered; simplify review.
How do I install Ponytail Review in Claude Code?
Run `npx skills add kortix-ai/suna --skill ponytail-review -a claude-code`. Or copy the skill folder (.agents/skills/ponytail-review in kortix-ai/suna) into .claude/skills/ponytail-review in your project. Claude Code loads it when a task matches its description.
How do I install Ponytail Review in Codex?
Run `npx skills add kortix-ai/suna --skill ponytail-review -a codex`. Or copy the skill folder (.agents/skills/ponytail-review in kortix-ai/suna) into .agents/skills/ponytail-review in your project. Codex loads it when a task matches its description.
Can I use Ponytail Review 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 kortix-ai/suna --skill ponytail-review -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/ponytail-review, .gemini/skills/ponytail-review, .github/skills/ponytail-review and .opencode/skills/ponytail-review in your project.
What does Ponytail Review need to run?
SKILL.md names no scripts, command-line tools or credentials: Ponytail Review is instructions for the agent only.
Does Ponytail Review 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 Ponytail Review 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 Ponytail Review use?
Ponytail Review 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 Ponytail Review use?
About 593 tokens (SKILL.md is roughly 2.4k 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 Ponytail Review?
Skills that share tags, products or a category with Ponytail Review: Ponytail Lazy Developer Mode (DietrichGebert/ponytail, 160k stars), Ponytail (DavidObando/gsharp, 565 stars), Code Simplification for ego-lite (citrolabs/ego-lite, 17k stars) and Refactor Pass for Simplicity (star-history/star-history, 9.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Ponytail Review?
kortix-ai (a GitHub organization) maintains it in kortix-ai/suna, which has 20,263 GitHub stars. The repository holds 19 skills in this directory. The repository was last updated on October 11, 2026.
Source: kortix-ai/suna on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.