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Copilot-Cockpit: Skill for Claude Code

.github/skills/prefab-ui/SKILL.md

prefab-ui is a skill for Claude Code, Codex from goodguy1963/Copilot-Cockpit. It costs 73 tokens per session (1,974 once invoked), scanned A, original, no licence file.

A skill for generating Prefab UI JSON, the structured text format Prefab uses to describe screens and interactions. It covers the Prefab v0.2 format, components, actions, reactive state, expressions, and runtime data calls.

In plain words
What is it for?
Use it to build dashboards, forms, charts, settings panels, and API-backed Prefab views.
Why use it?
It helps produce UI descriptions that can display data and respond to user actions in Prefab.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

This is goodguy1963/Copilot-Cockpit's own configuration. It tells Claude Code and Codex how to work on Copilot-Cockpit itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything Copilot-Cockpit configures →

not rated 21repo 16d ago A scan 73 tokens custom licence
View source ↗ goodguy1963/Copilot-Cockpit
Reuse

Borrowing it

Nothing to install: this file belongs to goodguy1963/Copilot-Cockpit. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/goodguy1963/Copilot-Cockpit/main/.github/skills/prefab-ui/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/goodguy1963/Copilot-Cockpit

Made for: Claude Code, Codex.

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 prefab-ui

README.md
[![agentmods](https://agentmods.dev/badge/skills/goodguy1963/copilot-cockpit/prefab-ui/github.svg)](https://agentmods.dev/skills/goodguy1963/copilot-cockpit/prefab-ui)
Your own site
<a href="https://agentmods.dev/skills/goodguy1963/copilot-cockpit/prefab-ui"><img src="https://agentmods.dev/badge/skills/goodguy1963/copilot-cockpit/prefab-ui/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 prefab-ui

Your own site · 80×15
<a href="https://agentmods.dev/skills/goodguy1963/copilot-cockpit/prefab-ui"><img src="https://agentmods.dev/badge/skills/goodguy1963/copilot-cockpit/prefab-ui.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,974 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 unknown No closer match found 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 $0.00073 $0.01974
Opus 5.5 $0.00029 $0.00790
Sonnet 5.5 $0.00015 $0.00395
Haiku 4.5 $0.00007 $0.00197

Measured 2mo ago against content hash 4dd8d4279935, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

prefab-ui 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 2mo 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.

.github/skills/prefab-ui/SKILL.md · 187 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 2mo ago First seen · 187 lines · 73 tokens per session scan A 4dd8d4279935

Subscribe to this mod's changes

prefab-ui is a skill published in the GitHub repository goodguy1963/Copilot-Cockpit (21 stars, last pushed 16d ago), with no licence file. It adds 73 tokens to every session and 1,974 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Design and UXFrontend
Related

prefab-ui compared with skills from other repositories

prefab-ui next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
prefab-uigoodguy1963/Copilot-CockpitSkill2116d agononeA73Claude Code, Codex
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visual-ralphYeachan-Heo/oh-my-codexSkill34k3d agoMITA52Codex
glance-canonical-layoutsandroid/skillsSkill10kyesterdayApache-2.0A56Claude Code
accessibilitymicrosoft/hve-coreSkill1.6kyesterdayMITA47Claude Code