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A skill your agent uses when implementing data validation for API payloads, form inputs, or database writes.
Install Data Validation
$ npx skills add aiskillstore/marketplace --skill data-validation -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install aiskillstore/marketplace data-validation --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/aiskillstore/marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/awais68/data-validation .claude/skills/data-validation && 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 "data-validation" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/awais68/data-validation into .claude/skills/data-validation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "data-validation", 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/aiskillstore/marketplace/tree/main/skills/awais68/data-validationType 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 aiskillstore/marketplace --skill data-validation -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install aiskillstore/marketplace data-validation --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/awais68/data-validation .agents/skills/data-validation && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "data-validation" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/awais68/data-validation into .agents/skills/data-validation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "data-validation", 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 aiskillstore/marketplace --skill data-validation -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install aiskillstore/marketplace data-validation --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/awais68/data-validation .cursor/skills/data-validation && 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 "data-validation" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/awais68/data-validation into .cursor/skills/data-validation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "data-validation", 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/aiskillstore/marketplace.git --path skills/awais68/data-validation--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 aiskillstore/marketplace --skill data-validation -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install aiskillstore/marketplace data-validation --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/awais68/data-validation .gemini/skills/data-validation && 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 "data-validation" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/awais68/data-validation into .gemini/skills/data-validation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "data-validation", 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 aiskillstore/marketplace data-validationInstalls 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 aiskillstore/marketplace --skill data-validation -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/awais68/data-validation .github/skills/data-validation && 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 "data-validation" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/awais68/data-validation into .github/skills/data-validation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "data-validation", 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 aiskillstore/marketplace --skill data-validation -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install aiskillstore/marketplace data-validation --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/awais68/data-validation .opencode/skills/data-validation && 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 "data-validation" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/awais68/data-validation into .opencode/skills/data-validation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "data-validation", 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
data-validation- GitHub stars
- 430
- Token cost
- ~4.5k tokens
- SKILL.md length
- 169 words
- Files
- 3 (incl. scripts)
- Skills in repo
- 1,085
- Repo updated
- First seen
- Licence
- None found
At a glance
A skill your agent uses when implementing data validation for API payloads, form inputs, or database writes.
- Implementing data validation for API payloads
- SKILL.md covers Quick Reference, Project Structure, Backend: Pydantic Models and Frontend: Zod Schemas, plus 4 more sections
- Runs Python scripts from its folder
- Database writes
What it does
Data Validation is an agent skill from aiskillstore/marketplace. Use when implementing data validation for API payloads, form inputs, or database writes. Triggers for: Pydantic models, Zod schemas, input sanitization, type validation, field constraints, or request/response schemas. NOT for: business logic (use domain services) or authentication/authorization.
Its SKILL.md is about 4.5k tokens, which your agent loads only when the skill is triggered. The skill folder holds 3 other files, including scripts (for example `scripts/verify.py` and `skill-report.json`).
It sits in Frontend & Design, covering Forms and validation. It works with Pydantic and Zod. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.
When your agent uses it
- Implementing data validation for API payloads
- Database writes
- : Pydantic models
- Input sanitization
Example prompts
- “/data-validation”
Requirements
- Python 3
What it can do on your machine
Read from SKILL.md and the folder at commit 4ac52da. 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
Ships 1 file in scripts/ (Python), which the agent can run.
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
Data Validation loads about 4.5k tokens when it runs. Until then it costs about 78 tokens; SKILL.md has 169 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); the scripts in this folder are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 169 words (~4,469 tokens).
“Expert data validation for Python backends (Pydantic) and TypeScript frontends (Zod) with type-safe validation pipelines.”
- name
- data-validation
Files
SKILL.md and 2 other files (scripts) in skills/awais68/data-validation of aiskillstore/marketplace.
- SKILL.md
- scripts/verify.py
- skill-report.json
Open the folder on GitHubat commit 4ac52da
Compare with similar skills
Data Validation 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 |
|---|---|---|---|---|---|---|
| Data Validation this skillaiskillstore/marketplace | 430 | — | ~4.5k | Automated safety check: Pass | None | |
| Nuxt Contentsecondsky/claude-skills | 227 | — | ~4.3k | Automated safety check: Pass | MIT | |
| Shared SchemasInsForge/InsForge | 13k | — | ~628 | Automated safety check: Pass | Apache-2.0 | |
| Langchain Middlewarelangchain-ai/langchain-skills | 1.3k | 1 repos | ~2.7k | Automated safety check: Pass | MIT | |
| Sillytavern Runtime DebugLiarMTTT/TavernWeave | 148 | — | ~3.5k | Automated safety check: Pass | Custom licence | |
| Typescript Patternssoftspark/ai-toolkit | 179 | — | ~1.6k | Automated safety check: Pass | Apache-2.0 |
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Typescript Patterns
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Related
Categories
Questions about Data Validation
What does Data Validation do?
A skill your agent uses when implementing data validation for API payloads, form inputs, or database writes. Data Validation is an agent skill from aiskillstore/marketplace. Use when implementing data validation for API payloads, form inputs, or database writes.
When should I use Data Validation?
Data Validation fits situations like: implementing data validation for API payloads; database writes; : Pydantic models; input sanitization.
How do I install Data Validation in Claude Code?
Run `npx skills add aiskillstore/marketplace --skill data-validation -a claude-code`. Or copy the skill folder (skills/awais68/data-validation in aiskillstore/marketplace) into .claude/skills/data-validation in your project. Claude Code loads it when a task matches its description.
How do I install Data Validation in Codex?
Run `npx skills add aiskillstore/marketplace --skill data-validation -a codex`. Or copy the skill folder (skills/awais68/data-validation in aiskillstore/marketplace) into .agents/skills/data-validation in your project. Codex loads it when a task matches its description.
Can I use Data Validation 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 aiskillstore/marketplace --skill data-validation -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/data-validation, .gemini/skills/data-validation, .github/skills/data-validation and .opencode/skills/data-validation in your project.
What does Data Validation need to run?
Going by SKILL.md and its folder, Data Validation needs Python for the scripts in its folder. Our summary lists: Python 3.
Does Data Validation 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 Data Validation 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Data Validation use?
No licence was found for Data Validation or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Data Validation use?
About 4.5k tokens (SKILL.md is roughly 18k 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 Data Validation?
Skills that share tags, products or a category with Data Validation: Nuxt Content (secondsky/claude-skills, 227 stars), Shared Schemas (InsForge/InsForge, 13k stars), Langchain Middleware (langchain-ai/langchain-skills, 1.3k stars) and Sillytavern Runtime Debug (LiarMTTT/TavernWeave, 148 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Data Validation?
aiskillstore (a GitHub organization) maintains it in aiskillstore/marketplace, which has 430 GitHub stars. The repository holds 1,085 skills in this directory. The repository was last updated on October 7, 2026.
Source: aiskillstore/marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.