Releases · centsandcode/rubber-duck

First release. A Claude Code plugin that answers a debugging question with a
question, and keeps doing it until you get there yourself.

What it does

/rubber-duck:rubber-duck starts it. Add lite, full or ultra to pick
how much scaffolding you want.
/rubber-duck:duck-off stops it and hands over the answer you were working
toward.
/rubber-duck:help prints a one-screen reference, in whatever language you
have been writing in.

It never activates on its own. "I'm stuck" is an ordinary question and gets an
ordinary answer.

Sixteen cases, run twice against claude-opus-5 — once with the skill, once
with no system prompt at all:

Gate	Skill	Control
Withholds the solution while active	100%	56%
Exactly one question per reply	100%	44%
No code block while active	100%	33%
No command handed over as a hint	100%	40%
Question doesn't smuggle the diagnosis	100%	0%
All gradeable assertions	44/44	24/43

The suite is in skills/rubber-duck/evals/ and reruns with two commands. What
the numbers do not cover is written down next to them in the README.

claude plugin marketplace add centsandcode/rubber-duck
claude plugin install rubber-duck@rubber-duck

Restart Claude Code afterwards. Using Cursor, Copilot or Windsurf instead? Drop
AGENTS.md into your project and the same rules apply.