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Private prototype

Turn a rough idea into a validated, downloadable Agent Skill.

Build Agent Skills with evidence you can trust. Validation and Evaluation stay separate at every step.

Laptop on a desk showing structured skill authoring work

Agent Skill hosts

A Download Bundle is a portable Agent Skill directory for coding agents you already use

  • Claude
  • Cursor
  • Codex
  • Copilot
  • Windsurf

Improvement Loop

Each Skill Project moves through the same loop. The workspace keeps directory, editor, and Authoring Agent in one place.

  1. Describe the skill

    Open a Skill Project with a short first prompt.

  2. Refine with the Authoring Agent

    Clarify intent and apply structured edits in the workspace.

  3. Review Validation and Evaluation

    Read deterministic checks and model judgment as separate evidence.

  4. Download Bundle

    Export a portable Agent Skill directory when the loop is satisfied.

Separate evidence in the Scorecard

Validation answers whether the Skill Revision conforms. Evaluation records model judgment from an Evaluation Run. They are never merged into one score.

Validation

Deterministic

Validation checks structure and required files deterministically. These are not model judgments.

Structure, paths, and conformance checks

Evaluation

Model judgment

Evaluation judged the skill against enabled Eval Cases. This is model judgment, separate from Validation.

Close view of a structured review document on a desk