financial-ui-patterns

financial-ui-patterns is a skill for Claude Code from rgourley/financial-ui-suite. It costs 61 tokens per session (3,412 once invoked), scanned A, original, MIT.

A set of design rules for interfaces that display financial information such as prices, profits and losses, holdings, trades, charts, and live market data. It covers details such as readable number formatting, update states, dark themes, and accessibility.

In plain words
What is it for?
Use it when building trading screens, portfolio pages, order books, watchlists, market charts, transaction histories, or other interfaces containing money, percentages, prices, or quantities.
Why use it?
It helps avoid common mistakes that make financial screens hard to read or trust, such as misaligned numbers, unclear stale data, and relying only on color to communicate changes.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: positional $N argument.

Part of the financial-ui-suite plugin — 2 skills shipped together

Good fit Use it when building trading screens, portfolio pages, order books, watchlists, market charts, transaction histories, or other interfaces containing money, percentages, prices, or quantities.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/rgourley/financial-ui-suite/financial-ui-patterns
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 rgourley/financial-ui-suite --skill financial-ui-patterns
Clone the repo
git clone --depth 1 https://github.com/rgourley/financial-ui-suite

Made for: Claude Code.

Or install financial-ui-suite, the plugin that ships this one along with the rest of its 2 skills.

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 financial-ui-patterns

README.md
[![agentmods](https://agentmods.dev/badge/skills/rgourley/financial-ui-suite/financial-ui-patterns/github.svg)](https://agentmods.dev/skills/rgourley/financial-ui-suite/financial-ui-patterns)
Your own site
<a href="https://agentmods.dev/skills/rgourley/financial-ui-suite/financial-ui-patterns"><img src="https://agentmods.dev/badge/skills/rgourley/financial-ui-suite/financial-ui-patterns/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 financial-ui-patterns

Your own site · 80×15
<a href="https://agentmods.dev/skills/rgourley/financial-ui-suite/financial-ui-patterns"><img src="https://agentmods.dev/badge/skills/rgourley/financial-ui-suite/financial-ui-patterns.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,412 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00061 $0.03412
Opus 5 $0.00030 $0.01706
Sonnet 5 $0.00012 $0.00682
Haiku 4.5 $0.00006 $0.00341

Measured 10d ago against content hash f7053d235a03, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

financial-ui-patterns 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 10d 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.

skills/financial-ui-patterns/SKILL.md · 269 lines

How it starts

The opening of the file, as written. The whole thing — 269 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Financial UI Patterns

Overview

Generic AI output for financial UIs fails in predictable ways: raw color values instead of design tokens, jittery non-tabular numbers, no decimal alignment, missing tick-flash on updates, hard-coded dark theme, broken Tailwind dynamic classes, no streaming/staleness states, no accessibility for color-blind users.

This skill codifies the patterns that production trading UIs (Kraken, Coinbase, TradingView, Bloomberg Terminal, Robinhood, Binance) actually ship.

Core principle: numbers must be legible, aligned, and trustworthy. Color is a signal, not decoration. Latency must be visible. Every digit shift is a failure.

When to Use

  • Tables with prices, P&L, holdings, positions, orders, fills, trades
  • Order books, depth charts, ladders
  • Watchlists, tickers, market overviews
  • Streaming/live data of any kind
  • Portfolio screens, transaction history
  • Charts with OHLC, candlesticks, sparklines
  • Any UI showing money, percentages, basis points, or quantities

Don't use for: marketing pages, blog posts, generic product UI without numbers.

Quick Reference

Concern Rule
Number rendering Always tabular-nums. Never let digits reflow.
Number alignment Right-align in tables. Decimal-align when precision varies.
Ticker/ID display Use font-mono (JetBrains Mono, Roboto Mono, IBM Plex Mono).
Colors Semantic tokens only (text-positive, text-negative). Never text-green-500.
Theme Light + dark via CSS variables. Never hard-code surface colors.
Tick flash 300-500ms tinted background on price update. CSS only, no JS animation.
P&L sign Always show + for positive returns. - is automatic on negatives.
Tailwind dynamic NEVER bg-${color}-500/10. Use static class maps.
Streaming state Show connecting / live / stale / disconnected explicitly.
Accessibility Pair color with icon, position, or shape. Never color alone.
Decimals Crypto: dynamic precision by price magnitude. Stocks: 2 dp. FX: 4-5 dp.
Large numbers Compact notation (1.2B, 847M) for caps/volume, not for prices/balances.
Density Default to compact. 32-40px row height in tables. 24-28px in order books.

Read the full file on GitHub · 269 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. 10d ago First seen · 269 lines · 61 tokens per session scan A f7053d235a03

Subscribe to this mod's changes

financial-ui-patterns is a skill published in the GitHub repository rgourley/financial-ui-suite (6 stars, last pushed 27d ago), licensed MIT. It adds 61 tokens to every session and 3,412 once invoked, about $0.0003 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 2026-08-31.

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