What is ui-ux-festlegen?

A guided user-interface and experience design skill for setting shared rules for an application. It asks questions about layout, colors, typography, components, states, tone, and accessibility, then records the decisions in `docs/ui-ux.md`.

Use it to define project-wide visual and interaction rules after the architecture and project vision are approved. It can also record that UI rules are not relevant for a service, library, or command-line tool.

It prevents each feature from making unrelated design choices. The resulting document gives developers a common reference for how the application should look and behave.

How trojava/spec-driven-dev-kit configures Codex

Reuse

Borrowing it

Nothing to install: this file belongs to trojava/spec-driven-dev-kit. 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/trojava/spec-driven-dev-kit/main/.agents/skills/ui-ux-festlegen/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/trojava/spec-driven-dev-kit

Made for: 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/trojava/spec-driven-dev-kit/ui-ux-festlegen/github.svg)](https://agentmods.dev/skills/trojava/spec-driven-dev-kit/ui-ux-festlegen)

Your own site

<a href="https://agentmods.dev/skills/trojava/spec-driven-dev-kit/ui-ux-festlegen"><img src="https://agentmods.dev/badge/skills/trojava/spec-driven-dev-kit/ui-ux-festlegen/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/trojava/spec-driven-dev-kit/ui-ux-festlegen"><img src="https://agentmods.dev/badge/skills/trojava/spec-driven-dev-kit/ui-ux-festlegen.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 91 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,314 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 original 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.

Model	Per session	Once invoked
Fable 5.1	$0.00091	$0.02314
Opus 5.5	$0.00036	$0.00926
Sonnet 5.5	$0.00018	$0.00463
Haiku 4.5	$0.00009	$0.00231

Measured 1mo ago against content hash 2a4389be70f9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ui-ux-festlegen 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 1mo 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.

.agents/skills/ui-ux-festlegen/SKILL.md · 194 lines

How it starts

The opening of the file, as written. The whole thing — 194 lines — stays where its author put it; the contents beside it link to each section on GitHub.

UI/UX festlegen

Dieser Skill kennt genau einen Auftrag: die projektweiten Vorgaben in docs/ui-ux.md, einmalig nach den Architekturvorgaben. Gestalterische Festlegungen gelten für die gesamte Anwendung und werden nicht je Feature wiederholt.

Rolle

Du bist ein erfahrener UX-Designer. Du legst die Regeln für Gestaltung und Bedienung fest, die für die gesamte Anwendung gelten, und hältst sie prüfbar.

Voraussetzungen

Lies AGENTS.md, docs/vision.md, docs/prinzipien.md, docs/architektur.md und docs/ui-ux.md.
Prüfe, ob docs/vision.md fachlich ausgefüllt ist. Wenn nicht, stoppe und unterstütze zuerst die Klärung der Projektvision.
Prüfe, ob docs/architektur.md den Status Freigegeben trägt und die Art der Oberfläche entschieden ist. Wenn nicht, stoppe und verweise auf $architektur-festlegen.
Ist die Art der Oberfläche keine (Dienst, Bibliothek oder CLI), setze den Status auf Nicht relevant, vermerke die Begründung in einem Satz und stoppe.

Klärung durch Fragen und Optionen

Leite den Entscheidungsbedarf aus Zielgruppe, Nutzungskontext, Rahmenbedingungen und der gewählten Frontend-Technologie ab. Frage nur, was das Vorhaben tatsächlich beeinflusst.
Kläre nur, was die Projektvision und die absehbar nächsten Features erfordern. Entscheide nichts auf Vorrat. Vertage Fragen, die erst ein späteres Feature sinnvoll beantworten kann, unter Bewusst nicht festgelegt und nenne dabei das Feature oder den Zeitpunkt der Entscheidung.
Stelle die Fragen gebündelt und in nachvollziehbarer Reihenfolge. Nenne je Frage zwei bis drei konkrete Optionen mit dem wesentlichen Vorteil und Nachteil für dieses Projekt und kennzeichne einen begründeten Vorschlag.
Bevorzuge die einfachste Option, die die Anforderungen vollständig erfüllt. Schlage kein zusätzliches Werkzeug und keine zusätzliche Bibliothek ohne belegten Bedarf vor.
Warte auf die Antworten. Ändere während der Klärung keine Datei.
Übernimm nur bestätigte Antworten. Ergänze keine Festlegungen, nach denen nicht gefragt wurde, und erfinde keine Farbwerte, Schriften oder Maße.

Read the full file on GitHub · 194 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

agents/openai.yaml 234 B

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.

1mo ago First seen · 194 lines · 91 tokens per session scan A 2a4389be70f9

Subscribe to this mod's changes

ui-ux-festlegen is a skill published in the GitHub repository trojava/spec-driven-dev-kit (9 stars, last pushed 1mo ago), licensed MIT. It adds 91 tokens to every session and 2,314 once invoked, about $0.0004 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 2026-09-11.

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spec-driven-dev-kit: Skill for Codex