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.
npx agentmods add skills/mui/material-ui/material-ui-themingnpx skills add mui/material-ui --skill material-ui-theminggit clone --depth 1 https://github.com/mui/material-uiWhat 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 | $0.00063 | $0.00382 |
| Opus 5 | $0.00032 | $0.00191 |
| Sonnet 5 | $0.00013 | $0.00076 |
| Haiku 4.5 | $0.00006 | $0.00038 |
Grade A, and why
material-ui-theming 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.
What it actually says
Material UI theming and design tokens
Agent skill for theme creation, design tokens, light/dark, and CSS theme variables. SKILL.md is the entry; AGENTS.md is the full guide.
When to apply
createTheme,ThemeProvider,useTheme,CssBaselinecolorSchemes,useColorScheme, storage / SSR behaviorcssVariables: true,theme.vars,applyStyles('dark', …)- Custom theme keys and TypeScript module augmentation
Sections in AGENTS.md
| Area | Topics |
|---|---|
| Core setup | Imports, provider placement, useTheme |
| Token map | palette, typography, spacing, shape, breakpoints, components, … |
| Palette | main / derived colors, @mui/material/colors, mode |
| Color schemes | vs palette-only, hydration, ThemeProvider props |
| CSS variables | cssVariables, reserved vars, flicker avoidance |
| Composition | Multi-step createTheme, deepmerge, nesting providers |
| Custom tokens | Augmenting Theme / ThemeOptions |
Full guide
Read AGENTS.md for the complete instructions and links.
TypeScript snippets: reference.md.
What ships with it
4 files 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.
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.
- 2d ago First seen · 38 lines · 63 tokens per session scan A 5271fe75c064
material-ui-theming is a skill published in the GitHub repository mui/material-ui (98,975 stars, last pushed 2d ago), licensed MIT. It adds 63 tokens to every session and 382 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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