A guide to Mantine, a React component library with ready-made interface elements and hooks. React is a JavaScript library for building user interfaces, and Mantine also covers forms, themes, dark mode, and charts.

Use it when building React interfaces, configuring themes or dark mode, creating forms, using reusable components, or adding charts and date controls.

It helps you build common interface parts without designing every control from scratch. It also explains setup and customization for React applications using TypeScript and CSS modules.

mantine-dev — Skill by itechmeat

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 skills/itechmeat/llm-code/mantine-dev

Any agent

npx skills add itechmeat/llm-code --skill mantine-dev

Clone the repo

git clone --depth 1 https://github.com/itechmeat/llm-code

Made for: Claude Code, Codex.

Per session 79 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,205 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.

Model	Per session	Once invoked
Fable 5	$0.00079	$0.02205
Opus 5	$0.00039	$0.01103
Sonnet 5	$0.00016	$0.00441
Haiku 4.5	$0.00008	$0.00220

Measured 2d ago against content hash b74f66e0e883, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

mantine-dev 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.

skills/mantine-dev/SKILL.md · 174 lines

How it starts

The opening of the file, as written. The whole thing — 174 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Mantine UI Library

Mantine is a fully-featured React components library with TypeScript support. It provides 100+ hooks and components with native dark mode, CSS-in-JS via CSS modules, and excellent accessibility.

v9.5 Highlights

New Cascader component: select a value from hierarchical data by drilling down through cascading columns, with changeOnSelect, hover-to-expand, search, and a flat-list layout for mobile.
@mantine/charts gains SunburstChart (hierarchical data as concentric rings) and BulletChart (a value against a target and qualitative ranges); the area/bar/line/composite charts add withBrush for a draggable range-selector, and every chart component now ships accessibilityLayer (arrow-key navigation, Enter for tooltips) enabled by default.
Calendar-based date components gain withNativeLevelSelect, replacing the calendar header's level button with native <select> elements, paired with yearsSelectRange.
Timeline.Item gains opposite (content on the other side of the line, switching to a centered two-sided layout) and alternate (flips sides per item); FloatingWindow gains a ResizeHandle compound component with a dimensions prop and keyboard resizing; Modal/Drawer gain keepMountedMode ('activity' or 'display-none'); Accordion gains disableCollapse to keep one item always open.
@mantine/schedule ResourcesDayView/ResourcesWeekView accept intervalMinutes greater than 60 for multi-hour slot columns.
9.5.0 fixes an autoClose timer leak in the notifications container.
The official Vite template replaced ESLint/Prettier/eslint-config-mantine with oxlint/oxfmt via the new oxc-config-mantine package (internal tooling migration); eslint-config-mantine remains available for projects that keep ESLint.

v9.4 Highlights

New components: ComboboxPopover (low-level popover built on the Combobox engine), DataList (key/value description lists), EmptyState (empty/placeholder screens), and Menubar (desktop-style application menu bar).
@mantine/schedule gains ResourcesDayView and ResourcesWeekView for resource-grouped scheduling layouts.
9.4.1 patch fixes: @mantine/form compatibility with the React compiler, Heatmap rendering, and assorted component fixes.

Read the full file on GitHub · 174 lines

Files

What ships with it

8 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.

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.

2d ago First seen · 174 lines · 79 tokens per session scan A b74f66e0e883

Subscribe to this mod's changes

mantine-dev is a skill published in the GitHub repository itechmeat/llm-code (22 stars, last pushed 1mo ago), licensed MIT. It adds 79 tokens to every session and 2,205 once invoked, about $0.0004 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.

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