loft

loft is a skill for Claude Code from RobinNorberg/oh-my-copilot. It costs 96 tokens per session (1,209 once invoked), scanned A, a copy of loft, MIT.

A design method that builds a cheap, runnable mock-up when words cannot settle between two interface or logic options. People react to the artifact, and that reaction informs the final decision.

In plain words
What is it for?
Use it to compare interface variants, test a proposed interaction, or explore a logic model when the design question is still uncertain.
Why use it?
Some design questions cannot be answered by repeatedly discussing them. A clickable shell or small logic prototype makes the differences visible before the real implementation is built.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the oh-my-copilot plugin — 51 skills, 21 commands, 20 agents, 11 hooks, 1 MCP server shipped together

Good fit Use it to compare interface variants, test a proposed interaction, or explore a logic model when the design question is still uncertain.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/robinnorberg/oh-my-copilot/loft
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add RobinNorberg/oh-my-copilot --skill loft
Clone the repo
git clone --depth 1 https://github.com/RobinNorberg/oh-my-copilot

Made for: Claude Code.

Or install oh-my-copilot, the plugin that ships this one along with the rest of its 51 skills, 21 commands, 20 agents, 11 hooks, 1 MCP server.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for loft

README.md
[![agentmods](https://agentmods.dev/badge/skills/robinnorberg/oh-my-copilot/loft/github.svg)](https://agentmods.dev/skills/robinnorberg/oh-my-copilot/loft)
Your own site
<a href="https://agentmods.dev/skills/robinnorberg/oh-my-copilot/loft"><img src="https://agentmods.dev/badge/skills/robinnorberg/oh-my-copilot/loft/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for loft

Your own site · 80×15
<a href="https://agentmods.dev/skills/robinnorberg/oh-my-copilot/loft"><img src="https://agentmods.dev/badge/skills/robinnorberg/oh-my-copilot/loft.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 96 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,209 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 97% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00096 $0.01209
Opus 5 $0.00048 $0.00605
Sonnet 5 $0.00019 $0.00242
Haiku 4.5 $0.00010 $0.00121

Measured 3d ago against content hash 3868184e5661, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

loft scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

97% identical to loft — 4 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/loft/SKILL.md · 71 lines

How it starts

The opening of the file, as written. The whole thing — 71 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Loft

Cut no steel until the shape is fair. Shipwrights loft the hull's lines full-scale and fair them before a single plate is cut. Loft applies the same order to design questions: when words have run out — two plausible answers, neither falsifiable by talk — build a cheap runnable artifact, let the captain react to it, and fold that reaction into the decision.

The role contract. The crew builds the artifact; the captain's only job is to react — and that reaction is the decision. The artifact is an instrument for seeing, never a head start on the deliverable.

When to loft

  • a design question stalls in prose: repeatedly rephrased, still not settleable ("how should the path page look", "does this state model feel right")
  • a navigator map carries a loft ticket
  • a spec discussion reaches "we would have to see it first"

Do not loft when:

  • the question is answerable from repo evidence or by asking the captain (that is interviewing, not lofting)
  • the destination itself is unclear (that is fog — /oh-my-copilot:ask-navigator)
  • the answer already lives in an ADR (do not re-loft settled decisions)
  • the "design question" is actually a bug (that is the debugger's jurisdiction)

Choose the fork

Pick by what the question is asking. A wrong fork wastes the whole artifact.

Logic fork — is the model right?

For questions about state, business rules, data shape, or algorithms ("does unlocking regress on a retake?", "does this reducer hold at the edges?"):

  1. Isolate the decision-bearing core — the state machine, reducer, schema, or algorithm — as a pure module: no DOM, no I/O, no framework. Written so that, once the shape is confirmed, it moves into the real codebase unchanged.
  2. Wrap it in a single clickable HTML shell: one button per scenario, the tricky edge cases walked through in order, full state visible after every click.
  3. On confirmation the module is ready to lift — it re-enters as real work through launch. During the loft itself main stays untouched and the shell stays behind on the branch.

Read the full file on GitHub · 71 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 71 lines · 0 tokens per session scan A 3868184e5661

Subscribe to this mod's changes

loft is a skill published in the GitHub repository RobinNorberg/oh-my-copilot (5 stars, last pushed 4d ago), licensed MIT. It adds 96 tokens to every session and 1,209 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. It is 97% identical to loft, differing in 4 lines, and is treated as a copy.

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