Ponytail
DavidObando/gsharp
Forces the laziest solution that actually works, simplest, shortest, most minimal.
Lazy senior dev mode — always pick the simplest solution that works.
Install Ponytail
$ npx skills add dimetron/pi-go --skill ponytail -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install dimetron/pi-go ponytail --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/dimetron/pi-go.git skills-src && mkdir -p .claude/skills && cp -r skills-src/internal/extension/bundled_skills/ponytail .claude/skills/ponytail && 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" agent skill from https://github.com/dimetron/pi-go/tree/main/internal/extension/bundled_skills/ponytail into .claude/skills/ponytail/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ponytail", 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/dimetron/pi-go/tree/main/internal/extension/bundled_skills/ponytailType 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 dimetron/pi-go --skill ponytail -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install dimetron/pi-go ponytail --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dimetron/pi-go.git skills-src && mkdir -p .agents/skills && cp -r skills-src/internal/extension/bundled_skills/ponytail .agents/skills/ponytail && 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" agent skill from https://github.com/dimetron/pi-go/tree/main/internal/extension/bundled_skills/ponytail into .agents/skills/ponytail/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ponytail", 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 dimetron/pi-go --skill ponytail -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install dimetron/pi-go ponytail --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dimetron/pi-go.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/internal/extension/bundled_skills/ponytail .cursor/skills/ponytail && 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" agent skill from https://github.com/dimetron/pi-go/tree/main/internal/extension/bundled_skills/ponytail into .cursor/skills/ponytail/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ponytail", 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/dimetron/pi-go.git --path internal/extension/bundled_skills/ponytail--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 dimetron/pi-go --skill ponytail -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install dimetron/pi-go ponytail --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dimetron/pi-go.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/internal/extension/bundled_skills/ponytail .gemini/skills/ponytail && 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" agent skill from https://github.com/dimetron/pi-go/tree/main/internal/extension/bundled_skills/ponytail into .gemini/skills/ponytail/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ponytail", 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 dimetron/pi-go ponytailInstalls 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 dimetron/pi-go --skill ponytail -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/dimetron/pi-go.git skills-src && mkdir -p .github/skills && cp -r skills-src/internal/extension/bundled_skills/ponytail .github/skills/ponytail && 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" agent skill from https://github.com/dimetron/pi-go/tree/main/internal/extension/bundled_skills/ponytail into .github/skills/ponytail/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ponytail", 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 dimetron/pi-go --skill ponytail -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install dimetron/pi-go ponytail --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dimetron/pi-go.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/internal/extension/bundled_skills/ponytail .opencode/skills/ponytail && 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" agent skill from https://github.com/dimetron/pi-go/tree/main/internal/extension/bundled_skills/ponytail into .opencode/skills/ponytail/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ponytail", 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- GitHub stars
- 207
- Token cost
- ~584 tokens
- SKILL.md length
- 265 words
- Files
- 1
- Skills in repo
- 21
- Repo updated
- First seen
- Licence
- MIT
At a glance
Lazy senior dev mode — always pick the simplest solution that works.
- Works in 6 steps: Does this need to be built at all? (YAGNI) → Does the standard library already do… → Does a native platform feature cover it?… → …
- Reviewing code to keep changes minimal: prefer the standard library
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Native platform features
What it does
Ponytail is an agent skill from dimetron/pi-go. Lazy senior dev mode — always pick the simplest solution that works. Use this skill whenever writing, refactoring, or reviewing code to keep changes minimal: prefer the standard library, native platform features, and already-installed dependencies over new code or dependencies. Trigger when the user says "ponytail", "keep it simple", "simplest thing that works", "don't over-engineer", "lazy mode", or asks to avoid unnecessary abstractions, boilerplate, or premature complexity. The best code is the code never…
Its SKILL.md is about 580 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 Project scaffolding and Refactoring. The repository describes itself as: Go implementation of AI coding agent. The licence is MIT.
When your agent uses it
- Reviewing code to keep changes minimal: prefer the standard library
- Native platform features
- Already-installed dependencies over new code
- The user says ponytail
Example prompts
- “ponytail”
- “keep it simple”
- “simplest thing that works”
- “/ponytail”
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- Does this need to be built at all? (YAGNI)
- Does the standard library already do this? Use it.
- Does a native platform feature cover it? Use it.
- Does an already-installed dependency solve it? Use it.
- Can this be one line? Make it one line.
- Only then: write the minimum code that works.
What it can do on your machine
Read from SKILL.md and the folder at commit 24d1f2b. 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
Links to these hosts (documentation or services it may open):
github.com
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 loads about 584 tokens when it runs. Until then it costs about 133 tokens; SKILL.md has 265 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
The full file from dimetron/pi-go at commit 24d1f2b, republished under its MIT licence (© dimetron). 265 words, ~584 tokens.
Download SKILL.mdSave it as
.claude/skills/ponytail/SKILL.md (or your agent's skills folder).- name
- ponytail
- description
- Lazy senior dev mode — always pick the simplest solution that works. Use this skill whenever writing, refactoring, or reviewing code to keep changes minimal: prefer the standard library, native platform features, and already-installed dependencies over new code or dependencies. Trigger when the user says "ponytail", "keep it simple", "simplest thing that works", "don't over-engineer", "lazy mode", or asks to avoid unnecessary abstractions, boilerplate, or premature complexity. The best code is the code never written.
Ponytail, lazy senior dev mode
You are a lazy senior developer. Lazy means efficient, not careless. The best code is the code never written.
Before writing any code, stop at the first rung that holds:
- Does this need to be built at all? (YAGNI)
- Does the standard library already do this? Use it.
- Does a native platform feature cover it? Use it.
- Does an already-installed dependency solve it? Use it.
- Can this be one line? Make it one line.
- Only then: write the minimum code that works.
Rules:
- No abstractions that weren't explicitly requested.
- No new dependency if it can be avoided.
- No boilerplate nobody asked for.
- Deletion over addition. Boring over clever. Fewest files possible.
- Question complex requests: "Do you actually need X, or does Y cover it?"
- Pick the edge-case-correct option when two stdlib approaches are the same size, lazy means less code, not the flimsier algorithm.
- Mark intentional simplifications with a
ponytail:comment. If the shortcut has a known ceiling (global lock, O(n²) scan, naive heuristic), the comment names the ceiling and the upgrade path.
Not lazy about: input validation at trust boundaries, error handling that prevents data loss, security, accessibility, the calibration real hardware needs (the platform is never the spec ideal, a clock drifts, a sensor reads off), anything explicitly requested. Lazy code without its check is unfinished: non-trivial logic leaves ONE runnable check behind, the smallest thing that fails if the logic breaks (an assert-based demo/self-check or one small test file; no frameworks, no fixtures). Trivial one-liners need no test.
Adapted from DietrichGebert/ponytail.
© dimetron, 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 internal/extension/bundled_skills/ponytail of dimetron/pi-go.
Open the folder on GitHubat commit 24d1f2b
Compare with similar skills
Ponytail 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 this skilldimetron/pi-go | 207 | — | ~584 | Automated safety check: Pass | MIT | |
| PonytailDavidObando/gsharp | 565 | 8 repos | ~1.7k | Automated safety check: Pass | MIT | |
| Unslop CodeJCarterJohnson/vibecoded-design-tells | 511 | — | ~2.5k | Automated safety check: Pass | Custom licence | |
| Rust Hygiene Audittsz-org/tsz | 577 | — | ~1.5k | Automated safety check: Pass | Apache-2.0 | |
| Nextjs App Architecturejakubwarkusz/themes | 123 | 1 repos | ~2.5k | Automated safety check: Pass | MIT | |
| Task Workflowikarenkov/Modo | 343 | — | ~2.4k | Automated safety check: Pass | None |
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Categories
Questions about Ponytail
What does Ponytail do?
Lazy senior dev mode — always pick the simplest solution that works. Ponytail is an agent skill from dimetron/pi-go. Lazy senior dev mode — always pick the simplest solution that works.
When should I use Ponytail?
Ponytail fits situations like: reviewing code to keep changes minimal: prefer the standard library; native platform features; already-installed dependencies over new code; the user says ponytail.
How do I install Ponytail in Claude Code?
Run `npx skills add dimetron/pi-go --skill ponytail -a claude-code`. Or copy the skill folder (internal/extension/bundled_skills/ponytail in dimetron/pi-go) into .claude/skills/ponytail in your project. Claude Code loads it when a task matches its description.
How do I install Ponytail in Codex?
Run `npx skills add dimetron/pi-go --skill ponytail -a codex`. Or copy the skill folder (internal/extension/bundled_skills/ponytail in dimetron/pi-go) into .agents/skills/ponytail in your project. Codex loads it when a task matches its description.
Can I use Ponytail 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 dimetron/pi-go --skill ponytail -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, .gemini/skills/ponytail, .github/skills/ponytail and .opencode/skills/ponytail in your project.
What does Ponytail need to run?
SKILL.md names no scripts, command-line tools or credentials: Ponytail is instructions for the agent only.
Does Ponytail access the network?
SKILL.md names 1 domain. As links in the text: github.com. This is read from the text; nothing was executed.
Is Ponytail 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 use?
Ponytail 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 Ponytail use?
About 584 tokens (SKILL.md is roughly 2.3k 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?
Skills that share tags, products or a category with Ponytail: Ponytail (DavidObando/gsharp, 565 stars), Unslop Code (JCarterJohnson/vibecoded-design-tells, 511 stars), Rust Hygiene Audit (tsz-org/tsz, 577 stars) and Nextjs App Architecture (jakubwarkusz/themes, 123 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Ponytail?
dimetron (a GitHub user) maintains it in dimetron/pi-go, which has 207 GitHub stars. The repository holds 21 skills in this directory. The repository was last updated on October 1, 2026.
Source: dimetron/pi-go on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.