skill-prototype

SkillAI & models

Lets your agent test one risky assumption with a small time-boxed prototype, then keep or discard the result.

Instructions available. Your AI can read the instructions. Execution depends on the setup they require.

Add ahel to your AI once: Claude, ChatGPT, Cursor, Claude Code or Codex. Then ask it to use this.

Then ask your AI: use the skill-prototype skill

About this skill

Prototype one risky assumption within a fixed budget, then keep or discard the result

What this skill tells your AI

The instructions your AI receives, as published by nyldn/claude-octopus in skills/skill-prototype/SKILL.md and read by ahel’s review.

Host: Codex CLI — This skill was designed for Claude Code and adapted for Codex. Cross-reference commands use installed skill names in Codex rather than /octo:* slash commands. Use the active Codex shell and subagent tools. Do not claim a provider, model, or host subagent is available until the current session exposes it. For host tool equivalents, see skills/blocks/codex-host-adapter.md.

Bounded prototype

Use a prototype to answer one named question, not to start implementation by a different name.

Contract

Agree on the question, hypothesis, deadline, artifact path, and success signal before writing. Record the source revision. Store artifacts through scripts/plan-storage.sh, outside the installed plugin cache.

Native read-only plan mode permits a proposal only. Wait for an explicit execution handoff before creating files. Choosing prototype mode does not authorize deployment, provider calls, browser login, repository rewrites, or new permissions.

Stop at the deadline. Return observations, a keep, discard, or inconclusive verdict, and the disposition of each artifact. Automatic cleanup may remove only artifacts created by this run after ownership checks. Retain anything the user changed.

The completion record contains question, hypothesis, deadline, artifact_path, source_revision, observations, verdict, and disposition.

Adapted from prototype in mattpocock/skills at commit 3cca18b368ae95cdbdebbff572ccafa662551015 under the MIT License. See THIRD_PARTY_NOTICES.md.

Signals

GitHub stars
4k
Forks
390
Last commit
Sep 2026

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Item type
skill
Key
skill-prototype-nyldn
Source
github.com/nyldn/claude-octopus