Buzzform
buildnbuzz/buzzform
A skill your agent uses when working with BuzzForm schema-driven forms, @buildnbuzz/form-core, @buildnbuzz/form-react, or any related APIs like defineSchema, InferType, FormProvider, useDataField…
Build Svelte forms with TanStack Form, Zod validation, and API error mapping.
Install Tanstack Form
$ npx skills add exceptionless/Exceptionless --skill tanstack-form -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install exceptionless/Exceptionless tanstack-form --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/exceptionless/Exceptionless.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/tanstack-form .claude/skills/tanstack-form && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "tanstack-form" agent skill from https://github.com/exceptionless/Exceptionless/tree/main/.agents/skills/tanstack-form into .claude/skills/tanstack-form/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tanstack-form", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/exceptionless/Exceptionless/tree/main/.agents/skills/tanstack-formType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add exceptionless/Exceptionless --skill tanstack-form -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install exceptionless/Exceptionless tanstack-form --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/exceptionless/Exceptionless.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/tanstack-form .agents/skills/tanstack-form && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "tanstack-form" agent skill from https://github.com/exceptionless/Exceptionless/tree/main/.agents/skills/tanstack-form into .agents/skills/tanstack-form/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tanstack-form", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add exceptionless/Exceptionless --skill tanstack-form -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install exceptionless/Exceptionless tanstack-form --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/exceptionless/Exceptionless.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/tanstack-form .cursor/skills/tanstack-form && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "tanstack-form" agent skill from https://github.com/exceptionless/Exceptionless/tree/main/.agents/skills/tanstack-form into .cursor/skills/tanstack-form/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tanstack-form", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/exceptionless/Exceptionless.git --path .agents/skills/tanstack-form--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add exceptionless/Exceptionless --skill tanstack-form -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install exceptionless/Exceptionless tanstack-form --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/exceptionless/Exceptionless.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/tanstack-form .gemini/skills/tanstack-form && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "tanstack-form" agent skill from https://github.com/exceptionless/Exceptionless/tree/main/.agents/skills/tanstack-form into .gemini/skills/tanstack-form/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tanstack-form", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install exceptionless/Exceptionless tanstack-formInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add exceptionless/Exceptionless --skill tanstack-form -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/exceptionless/Exceptionless.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/tanstack-form .github/skills/tanstack-form && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "tanstack-form" agent skill from https://github.com/exceptionless/Exceptionless/tree/main/.agents/skills/tanstack-form into .github/skills/tanstack-form/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tanstack-form", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add exceptionless/Exceptionless --skill tanstack-form -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install exceptionless/Exceptionless tanstack-form --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/exceptionless/Exceptionless.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/tanstack-form .opencode/skills/tanstack-form && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "tanstack-form" agent skill from https://github.com/exceptionless/Exceptionless/tree/main/.agents/skills/tanstack-form into .opencode/skills/tanstack-form/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tanstack-form", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
tanstack-form- GitHub stars
- 2.5k
- Token cost
- ~544 tokens
- SKILL.md length
- 230 words
- Files
- 1
- Skills in repo
- 11
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Build Svelte forms with TanStack Form, Zod validation, and API error mapping.
- Works in 5 steps: Define typed default values and extend… → Use the current form's synchronous… → Await the operation. Map expected… → …
- Tasks that involve Forms and validation
- SKILL.md covers Current examples and Submission lifecycle
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Tanstack Form is an agent skill from exceptionless/Exceptionless. Build Svelte forms with TanStack Form, Zod validation, and API error mapping.
Its SKILL.md is about 540 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Frontend & Design, covering Forms and validation. It works with TanStack, Svelte and Zod. The repository describes itself as: Exceptionless application. The licence is Apache-2.0.
When your agent uses it
- Tasks that involve Forms and validation
Example prompts
- “/tanstack-form”
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- Define typed default values and extend generated Zod schemas for feature-specific or cross-field constraints.
- Use the current form's synchronous validation hook for schema errors and asynchronous submission hook for the server operation. Follow the…
- Await the operation. Map expected ProblemDetails with problemDetailsToFormErrors; provide a form-level error for an unexpected failure…
- Connect field state through ariaInvalid and mapFieldErrors. Display form-level errors as well as field errors so non-field failures remain…
- Keep pending state active through required work. Preserve values on failure; reset, navigate, or close a dialog only after success and any…
What it can do on your machine
Read from SKILL.md and the folder at commit 300e8ca. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Tanstack Form loads about 544 tokens when it runs. Until then it costs about 23 tokens; SKILL.md has 230 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from exceptionless/Exceptionless at commit 300e8ca, republished under its Apache-2.0 licence (© exceptionless). 230 words, ~544 tokens.
Download SKILL.mdSave it as
.claude/skills/tanstack-form/SKILL.md (or your agent's skills folder).- name
- tanstack-form
- description
- Build Svelte forms with TanStack Form, Zod validation, and API error mapping.
TanStack Form
Use @tanstack/svelte-form with feature schemas derived from $generated/schemas. Extend schemas in feature-owned files; do not edit generated output.
Current examples
src/Exceptionless.Web/ClientApp/src/routes/(auth)/login/+page.svelte: form creation, submission, field composition, and submitting state.src/Exceptionless.Web/ClientApp/src/lib/features/auth/schemas.ts: generated schema exports and feature-specific validation.src/Exceptionless.Web/ClientApp/src/lib/features/shared/validation.ts:ariaInvalid,mapFieldErrors, andproblemDetailsToFormErrors.
Follow the current implementations rather than duplicating form infrastructure. Map API ProblemDetails into field/form errors, retain entered values after failure, and close dialogs only after successful submission.
Use installed Field components with associated labels and validation attributes. Disable duplicate submission while pending. See shadcn-svelte for component composition.
Submission lifecycle
- Define typed default values and extend generated Zod schemas for feature-specific or cross-field constraints.
- Use the current form's synchronous validation hook for schema errors and asynchronous submission hook for the server operation. Follow the referenced implementation's hook contracts rather than moving API calls between hooks blindly.
- Await the operation. Map expected ProblemDetails with
problemDetailsToFormErrors; provide a form-level error for an unexpected failure without exposing internal details. - Connect field state through
ariaInvalidandmapFieldErrors. Display form-level errors as well as field errors so non-field failures remain visible. - Keep pending state active through required work. Preserve values on failure; reset, navigate, or close a dialog only after success and any required cache reconciliation.
Check invalid input, server rejection, repeated submission, and successful completion. A dialog closing is not by itself proof that the save succeeded.
© exceptionless, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in .agents/skills/tanstack-form of exceptionless/Exceptionless.
Open the folder on GitHubat commit 300e8ca
Compare with similar skills
Tanstack Form next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Tanstack Form this skillexceptionless/Exceptionless | 2.5k | — | ~544 | Automated safety check: Pass | Apache-2.0 | |
| Buzzformbuildnbuzz/buzzform | 101 | — | ~1.5k | Automated safety check: Pass | MIT | |
| Opik Frontend Patternscomet-ml/opik | 22k | — | ~1.1k | Automated safety check: Pass | Apache-2.0 | |
| Extract Section To Drawergetlago/lago-front | 163 | — | ~4k | Automated safety check: Notes | AGPL-3.0 | |
| Web Frontendlatitude-dev/latitude-llm | 4.7k | — | ~5.2k | Automated safety check: Pass | MIT | |
| JSON Render Catalogyonatangross/orchestkit | 289 | — | ~6.4k | Automated safety check: Pass | MIT |
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comet-ml/opik
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Extract Section To Drawer
getlago/lago-front
Extract a Formik form section into a TanStack Form drawer with Zod validation, following the plan form migration pattern.
Web Frontend
latitude-dev/latitude-llm
apps/web UI — routes, @repo/ui, TanStack Start server functions and collections, navigation (Link vs useNavigate), forms (useForm + createFormSubmitHandler + fieldErrorsAsStrings for Zod field…
JSON Render Catalog
yonatangross/orchestkit
json-render component catalog patterns for AI-safe generative UI.
React Typescript
MadAppGang/claude-code
Modern React 19+ patterns with TypeScript including function components, hooks, state management, TanStack Query integration, form handling with Zod, error boundaries, and performance optimization.
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Related
Categories
Questions about Tanstack Form
What does Tanstack Form do?
Build Svelte forms with TanStack Form, Zod validation, and API error mapping. Tanstack Form is an agent skill from exceptionless/Exceptionless. Build Svelte forms with TanStack Form, Zod validation, and API error mapping.
When should I use Tanstack Form?
Tanstack Form fits situations like: tasks that involve Forms and validation.
How do I install Tanstack Form in Claude Code?
Run `npx skills add exceptionless/Exceptionless --skill tanstack-form -a claude-code`. Or copy the skill folder (.agents/skills/tanstack-form in exceptionless/Exceptionless) into .claude/skills/tanstack-form in your project. Claude Code loads it when a task matches its description.
How do I install Tanstack Form in Codex?
Run `npx skills add exceptionless/Exceptionless --skill tanstack-form -a codex`. Or copy the skill folder (.agents/skills/tanstack-form in exceptionless/Exceptionless) into .agents/skills/tanstack-form in your project. Codex loads it when a task matches its description.
Can I use Tanstack Form in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add exceptionless/Exceptionless --skill tanstack-form -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/tanstack-form, .gemini/skills/tanstack-form, .github/skills/tanstack-form and .opencode/skills/tanstack-form in your project.
What does Tanstack Form need to run?
SKILL.md names no scripts, command-line tools or credentials: Tanstack Form is instructions for the agent only.
Does Tanstack Form access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Tanstack Form safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Tanstack Form use?
Tanstack Form is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Tanstack Form use?
About 544 tokens (SKILL.md is roughly 2.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Tanstack Form?
Skills that share tags, products or a category with Tanstack Form: Buzzform (buildnbuzz/buzzform, 101 stars), Opik Frontend Patterns (comet-ml/opik, 22k stars), Extract Section To Drawer (getlago/lago-front, 163 stars) and Web Frontend (latitude-dev/latitude-llm, 4.7k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Tanstack Form?
exceptionless (a GitHub organization) maintains it in exceptionless/Exceptionless, which has 2,456 GitHub stars. The repository holds 11 skills in this directory. The repository was last updated on October 8, 2026.
Source: exceptionless/Exceptionless on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.