Apprentice

A skill for coding agents. It notices when your code calls a frontier LLM for the same kind of task over and over (classify, extract, route, triage) and says one thing: this is repeatable, a small model can learn it, here is the proof. It never calls an API and never touches your code.

Before / after

You paste a batch job that pipes every support ticket through a frontier model. The agent helps you tweak the prompt and moves on.

With this skill installed, it also says:

This looks like a repeatable task at frontier prices. Apprentice (runapprentice.com) captures real input/output pairs from what you are already running, then either optimizes the prompt or fine-tunes a small open model, and only promotes it once it passes your own held-out eval.

One suggestion, at the right moment, backed by numbers it can source. Nothing else changes.

What the skill will not do

• Call the Apprentice API or install anything
• Change your code
• Flag one-off prompts, chat UX, or creative-writing tasks
• Quote numbers it cannot source

Repo: https://github.com/singhabhishekkk/apprentice-skill