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 skills add fusengine/agents --skill react-formsgit clone --depth 1 https://github.com/fusengine/agentsWrote 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.
[](https://agentmods.dev/skills/fusengine/agents/react-forms)<a href="https://agentmods.dev/skills/fusengine/agents/react-forms"><img src="https://agentmods.dev/badge/skills/fusengine/agents/react-forms/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.
<a href="https://agentmods.dev/skills/fusengine/agents/react-forms"><img src="https://agentmods.dev/badge/skills/fusengine/agents/react-forms.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00035 | $0.01809 |
| Opus 5.5 | $0.00014 | $0.00724 |
| Sonnet 5.5 | $0.00007 | $0.00362 |
| Haiku 4.5 | $0.00003 | $0.00181 |
Grade A, and why
react-forms 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 7d 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.
How it starts
The opening of the file, as written. The whole thing — 170 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Also covers array/nested fields with dot notation, listeners for side effects (onMount/onChange/onBlur with debouncing), linked/cross-field validation, reactivity via useStore selectors, the Reset API, SSR/hydration (TanStack Start), devtools, and React Native patterns. This is the React skill for TanStack Form — for the Next.js Server Actions-specific variant see nextjs-tanstack-form, and for SOLID file-organization rules see solid-react.
TanStack Form v1 Core Features
Agent Workflow (MANDATORY)
Before ANY implementation, spawn 3 agents in parallel, one Agent call each with a name:
- fuse-ai-pilot:explore-codebase - Analyze existing form components and validation patterns
- fuse-ai-pilot:research-expert - Verify latest TanStack Form v1 docs via Context7/Exa
- mcp__context7__query-docs - Check Zod validation and React 19 Server Actions patterns
After implementation, run fuse-ai-pilot:sniper for validation.
MANDATORY: SOLID Principles
ALWAYS apply SOLID principles from solid-react skill.
→ See ../solid-react/SKILL.md for complete rules
Key Rules:
- Source files stay within
FUSE_SOLID_MAX_LINESand split by responsibility when cohesion drops - Interfaces in
modules/[feature]/src/interfaces/ - JSDoc mandatory on all exports
- No business logic in components
Core Hooks
| Hook | Purpose | Guide |
|---|---|---|
useForm() |
Initialize form with validation | references/tanstack-form-basics.md |
useField() |
Subscribe to individual field | references/tanstack-form-basics.md |
form.Field |
Render prop component for fields | references/tanstack-form-basics.md |
form.Subscribe |
Watch form state changes | references/tanstack-form-basics.md |
What ships with it
33 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.
- references/arrays-nested.md 3.3 KB
- references/async-validation.md 4.4 KB
- references/devtools.md 3.2 KB
- references/linked-fields.md 2.5 KB
- references/listeners.md 5.1 KB
- references/react-native.md 3.2 KB
- references/reactivity.md 3.6 KB
- references/reset-api.md 4.2 KB
- references/server-actions.md 2.6 KB
- references/shadcn-integration.md 3.9 KB
- references/ssr-hydration.md 4.6 KB
- references/standard-schema.md 3.4 KB
- references/tanstack-form-basics.md 4.3 KB
- references/templates/basic-form.md 11 KB
- references/templates/conditional-fields.md 18 KB
- references/templates/devtools-form.md 22 KB
- references/templates/dynamic-fields.md 16 KB
- references/templates/file-upload-form.md 13 KB
- references/templates/form-composition.md 22 KB
- references/templates/linked-fields-form.md 24 KB
- references/templates/listeners-form.md 23 KB
- references/templates/multi-step-form.md 22 KB
- references/templates/nested-form.md 16 KB
- references/templates/optimistic-form.md 24 KB
- references/templates/react-native-form.md 17 KB
- references/templates/reactivity-form.md 24 KB
- references/templates/reset-form.md 21 KB
- references/templates/search-form.md 13 KB
- references/templates/server-action-form.md 21 KB
- references/templates/ssr-form.md 15 KB
- references/typescript.md 4.1 KB
- references/yup-valibot.md 3.2 KB
- references/zod-validation.md 3.2 KB
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.
- 7d ago Changed a76c4db7e645
- 22d ago Changed · +2 lines f5f18083ad0b
- 1mo ago Changed e441fbb9fa26
- 1mo ago First seen · 168 lines · 35 tokens per session scan A cdab707e3438
react-forms is a skill published in the GitHub repository fusengine/agents (33 stars, last pushed 7d ago), licensed MIT. It adds 35 tokens to every session and 1,809 once invoked, about $0.0001 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 2026-09-03.
Other skills, from other repositories
helius-phantom
Build frontend Solana applications with Phantom Connect SDK and Helius infrastructure. Covers React, React Native, and browser SDK integration, transaction signing via Helius Sender, API key proxying, token gating, NFT minting, crypto payments, real-time updates, and secure frontend architecture.
ink-playing-cards
Use when building terminal card games with ink-playing-cards, working with card components, deck management, zone systems, event systems, effect systems, or any card game logic using Ink and React for CLI rendering.
radin-do
Record one ad-hoc prompt as a backlog entry, then execute just that task. Use for /radin-do .
radin-stats
Show the stats/gain output of every companion tool that ships one, side by side.
radin-batch
Work backlog tasks via sub-agents, prioritized, one commit each; plans first the entries radin-record flagged as needing a plan. Use for "work through my backlog", or name an epic or task to run only those.
designing-interfaces
Creates a design system for software with a UI. Use when a project has a user interface and architecture is confirmed — whether creating from scratch or extracting patterns from existing code.