stark-reference

A command that studies several real, shipped user-interface references and produces a written brief about their structure and interaction patterns.

In plain words
What is it for?
Use it before designing a user flow to compare references and record useful choices for hierarchy, states, responsive behavior, interactions, and assets.
Why use it?
It helps designers learn from existing products without copying their branding, artwork, wording, or exact layouts.

Command

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.

agentmods
npx agentmods add commands/f0d010c/stark/stark-reference
Clone the repo
git clone --depth 1 https://github.com/f0d010c/stark
Per session 21 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 255 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5 $0.00021 $0.00255
Opus 5 $0.00010 $0.00128
Sonnet 5 $0.00004 $0.00051
Haiku 4.5 $0.00002 $0.00026

Measured 2d ago against content hash c01ca098f1ce, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

stark-reference 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 2d 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.

commands/stark-reference.md · 39 lines

What it actually says

/stark-reference

Legacy Claude Code command. In Codex, ask:

Use stark reference analysis for this flow before designing.

Read:

  • references/ui-patterns/reference-analysis.md
  • references/ui-patterns/asset-selection.md
  • the relevant UX or platform skill

Inspect 3-5 shipped references when available. Use official docs, live public pages, first-party screenshots, or approved reference libraries. If using Mobbin/Figma/reference screenshots, extract structure only.

Output:

Reference extraction brief
- Pattern chosen: ...
- Why it fits this user's job: ...
- Structural decisions to borrow: ...
- Decisions to reject: ...
- State/responsive requirements: ...
- Asset/source constraints: ...

Rules:

  • Do not pixel-clone.
  • Do not copy brand, artwork, screenshots, copy, or proprietary layouts.
  • Name what you learned from each reference in product terms: job, IA, hierarchy, state, interaction, recovery, responsive behavior.
  • Use the brief as input to UX/UI implementation.
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. 2d ago First seen · 39 lines · 21 tokens per session scan A c01ca098f1ce

Subscribe to this mod's changes

stark-reference is a command published in the GitHub repository f0d010c/stark (25 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 21 tokens to every session and 255 once invoked, about $0.0001 per session on Opus 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.