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coding-agents/skills-pluginssmoke testsmoke test Rocky's quickest test: fresh sandbox, does it install and does the README example run? Glossary

ponytail: the 'laziest senior dev' prompt for coding agents

The claim“Makes your AI agentAI agent An AI that takes actions in steps (runs commands, edits files, browses) instead of only chatting. Glossary · Learn more think like the laziest senior dev in the room: the best code is the code you never wrote”

Rocky, verdict poseTESTING…ScorependingNo score yet
GitHubDietrichGebert/ponytail167kStars9.1kForks28Issues + PRsMITlicense (Apache-2.0, MIT) The rules for using the code. Apache-2.0 and MIT both allow free use, including commercial use. Glossary · Learn moreLicenseLast pushJavaScriptLanguage

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Review lives at rockytested.com · @RockyTested

🧪 Run stopped (failed) . Rocky is checking the numbers before any verdict.
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Coding agents Rocky · in the lab

With vs without

With it loadedNot tested yet

No with-skill pass count is on file.

Without itNot tested yet

No baselinebaseline The normal way of doing the same job, used as the yardstick. Rocky compares every claim against a baseline on the same machine. Glossary pass count is on file.

Usefulness is a separate question from “does the repo exist.” It needs the same task run twice. Until that A/B is published, both cells stay blank.

What the test plan says

Smoke first: confirm the single prompt file (SKILL.md) and AGENTS.md exist and parse, and that the Claude Code plugin marketplace manifest is valid JSON. A real before/after agent run, measuring whether ponytail makes an agent reuse code instead of writing new code, is queued as a claim testclaim test Rocky measures the headline claim ("10x faster!") on real tasks against a baseline. Glossary.

Four verdicts

One stamp is not the whole story. Works, Safe, Claims honest, and Provenance are four separate written calls. A missing call stays “not tested yet.”

WorksNOT TESTED YETDid it do the thing when Rocky ran it?

No written call is on file. This is not a pass.

SafeNOT TESTED YETSafe to install and run?

No written call is on file. This is not a pass.

Claims honestNOT TESTED YETDoes the pitch match what Rocky measured?

No written call is on file. This is not a pass.

ProvenanceNOT TESTED YETDoes the repo's history check out?

No written call is on file. This is not a pass.

Safety is a hard cap. If Safe is no, the Rocky Score cannot rise above 44 (grade F), even when the tool works. A blank Safe card means not tested yet, not safe. How the four verdicts roll up →

Claim vs what Rocky measured
Claim vs what Rocky measuredThe claim: Makes your AI agent think like the laziest senior dev in the room: the best code is the code you never wrote. The claim: Measuring… (measuring).THE CLAIM“Makes your AI agentthink like thelaziest senior devin the room: thebest code is thecode you never wrote• Source: X postvsWHAT ROCKY MEASURED⚗The claimMeasuring…Claim vs what Rocky measuredThe claim: Makes your AI agent think like the laziest senior dev in the room: the best code is the code you never wrote. The claim: Measuring… (measuring).THE CLAIM“Makes your AI agent thinklike the laziest seniordev in the room: the bestcode is the code you neverwrote• Source: X postvsWHAT ROCKY MEASURED⚗The claimMeasuring…
Claim partMeasuredResult
The claimMeasuring…measuring

What it is: A single widely-shared prompt (166k stars) that tells a coding agent to avoid writing unnecessary code and reuse what exists. Rocky first checks it installs cleanly, then will measure whether it actually changes agent behavior. Claim source →

Results coming. Here’s what Rocky will measure

  • Does the prompt and plugin install cleanly
  • Does the agent write less new code with it than without (claim run, queued)

Smoke first: confirm the single prompt file (SKILL.md) and AGENTS.md exist and parse, and that the Claude Code plugin marketplace manifest is valid JSON. A real before/after agent run, measuring whether ponytail makes an agent reuse code instead of writing new code, is queued as a claim test.

Sneak peek

Claim ledger

Every distinct claim in the pitch gets a row: what was said, what the command said back. 1 claim on the ledger: 1 not measured. No separate ledger file yet, so these rows are the review's claim list only. “Not tested” means that claim has no measurement.

🔍 Coverage: Not stated yet. Rocky only lists the parts a run actually checked.

⚗️ Unproven usefulness. Counting and parsing can settle what the repo claims. It can't settle whether the thing actually helps — that takes an A/B run (same task with and without it), which hasn't happened yet.

Rocky's take

Not written yet.

Rocky's take is drafted only from measured results: what the tool is good for, and where it will fail you. Until those results exist, this stays blank. Nothing here is guessed.

Where this repo comes from

Not checked yet.

Provenance is age, authors, commitcommit One saved version of a repo's code. Rocky pins the exact commit so anyone can rerun the same code. Glossary · Learn more bursts, and where the README sends you. It is published only from commands Rocky ran. Nothing is guessed, so this section stays blank until that file exists.

Score

Scorepending

Not scored yet. A Rocky Score is a rollup of measured subscores only. This review does not have one, and no grade is filled in to hold the place.

Rerun it yourself

📦 When the test is done, the exact scripts, raw results and a copy-paste prompt for your own AI agent will appear here.

Repo & thanks

Where the claim was posted

Trending GitHub Repositories
@trending_repos ·
The claim Rocky tested

Trending repository of the day 📈 ponytail Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote. Last 24h: 1,894 ⭐ Total: 154,196 ⭐️ https://github.com/DietrichGebert/ponytail

💬 7🔁 10❤️ 106📊 9.9K🔖 107

Counts as of (Rocky's last check)

Open on X →

Where else this repo is talked about

On X: 1 posts linking the repo

Posts from to , in several languages. Found with X search for links to the repo; more may exist. Oldest first:

  • Earliest we found @trending_repos Trending repository of the day 📈 ponytail Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote. Last 24h: 1,894 ⭐ Total: 154,196 ⭐️ https://github.com/DietrichGebert/ponytail❤️ 106 · 🔁 10 · 📊 9.9K open
All 1 posts, oldest first
  • Earliest we found @trending_repos Trending repository of the day 📈 ponytail Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote. Last 24h: 1,894 ⭐ Total: 154,196 ⭐️ https://github.com/DietrichGebert/ponytail❤️ 106 · 🔁 10 · 📊 9.9K open

Ran it yourself?

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  2. Run it, or paste the prompt into your AI agent.
  3. Post your results.json (a gist is fine) and reply to @RockyTested with the link.

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Badge & stat card

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Rocky Tested stat card for ponytail: the 'laziest senior dev' prompt for coding agents

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Machine-readable: /v1/reviews/dietrichgebert-ponytail · Words with a dotted underline have a quick explanation: hover or tap. Glossary