validation AI Agent Skills

instructor

21.8k

davila7

Extract structured data from LLM responses with Pydantic validation, retry failed extractions automatically, parse complex JSON with type safety, and stream partial results with Instructor - battle-tested structured output library

Hypothesis Testing

451

rohitg00

Scientific approach to debugging with hypothesis formation and testing

ev-certificate-validator

376

A5c Ai Babysitter Ev Certificate Validator

Validate EV code signing certificate chain and timestamp for Windows SmartScreen

convex-schema-validator

339

Waynesutton Convexskills Convex Schema Validator

Defining and validating database schemas with proper typing, index configuration, optional fields, unions, and migration strategies for schema changes

proof-of-work

241

MadAppGang

Proof artifact generation patterns for task validation. Covers screenshots, test results, deployments, and confidence scoring.

hooks-system

241

MadAppGang

Comprehensive lifecycle hook patterns for Claude Code workflows. Use when configuring PreToolUse, PostToolUse, UserPromptSubmit, Stop, or SubagentStop hooks. Covers hook matchers, command hooks, prompt hooks, validation, metrics, auto-formatting, and security patterns. Trigger keywords - "hooks", "PreToolUse", "PostToolUse", "lifecycle", "tool matcher", "hook template", "auto-format", "security hook", "validation hook".

hierarchical-coordinator

241

MadAppGang

Prevent goal drift in long-running multi-agent workflows using a coordinator agent that validates outputs against original objectives at checkpoints. Use when orchestrating 3+ agents, multi-phase features, complex implementations, or any workflow where agents may lose sight of original requirements. Trigger keywords - "hierarchical", "coordinator", "anti-drift", "checkpoint", "validation", "goal-alignment", "decomposition", "phase-gate", "shared-state", "drift detection".

qe-n8n-expression-testing

215

proffesor-for-testing

n8n expression syntax validation, context-aware testing, common pitfalls detection, and performance optimization. Use when validating n8n expressions and data transformations.

n8n Expression Testing

215

proffesor-for-testing

n8n expression syntax validation, context-aware testing, common pitfalls detection, and performance optimization. Use when validating n8n expressions and data transformations.

skill-authoring

196

athola

Guide to effective Claude Code skill authoring using TDD methodology and persuasion principles. Use when creating new skills, improving compliance, or validating quality before deployment. Do not use for evaluating existing skills (use skills-eval) or analyzing architecture (use modular-skills). Follow the Iron Law: write a failing test before writing any skill.

proof-of-work

196

athola

Enforces "prove before claim" discipline - validation, testing, and evidence requirements before declaring work complete. Use when claiming work is complete, recommending solutions, or finishing implementations, improvement validated, workflow optimized, performance improved, or issue resolved. Do not use when asking questions or for work clearly in-progress. MANDATORY: This skill is required before any completion claim.

subagent-testing

196

athola

TDD-style testing methodology for skills using fresh subagent instances to prevent priming bias and validate skill effectiveness. Use when validating skill improvements, testing skill effectiveness, preventing priming bias, measuring skill impact on behavior. Do not use when implementing skills (use skill-authoring instead), creating hooks (use hook-authoring instead).

cell-free-expression

100

adaptyvbio

Guidance for cell-free protein synthesis (CFPS) optimization. Use when: (1) Planning CFPS experiments, (2) Troubleshooting low yield or aggregation, (3) Optimizing DNA template design for CFPS, (4) Expressing difficult proteins (disulfide-rich, toxic, membrane).

chai

100

adaptyvbio

Structure prediction using Chai-1, a foundation model for molecular structure. Use this skill when: (1) Predicting protein-protein complex structures, (2) Validating designed binders, (3) Predicting protein-ligand complexes, (4) Using the Chai API for high-throughput prediction, (5) Need an alternative to AlphaFold2. For QC thresholds, use protein-qc. For AlphaFold2 prediction, use alphafold. For ESM-based analysis, use esm.

alphafold

100

adaptyvbio

Validate protein designs using AlphaFold2 structure prediction. Use this skill when: (1) Validating designed sequences fold correctly, (2) Predicting binder-target complex structures, (3) Calculating confidence metrics (pLDDT, pTM, ipTM), (4) Self-consistency validation of designs, (5) Multi-chain complex prediction with AlphaFold-Multimer. For faster single-chain prediction, use esm. For QC thresholds, use protein-qc.

binding-characterization

100

adaptyvbio

Guidance for SPR and BLI binding characterization experiments. Use when: (1) Planning binding kinetics experiments, (2) Troubleshooting poor/no binding signal, (3) Interpreting kinetic data artifacts, (4) Choosing between SPR vs BLI platforms.

boltz

100

adaptyvbio

Structure prediction using Boltz-1/Boltz-2, an open biomolecular structure predictor. Use this skill when: (1) Predicting protein complex structures, (2) Validating designed binders, (3) Need open-source alternative to AF2, (4) Predicting protein-ligand complexes, (5) Using local GPU resources. For QC thresholds, use protein-qc. For AlphaFold2 prediction, use alphafold. For Chai prediction, use chai.

ui-components

97

yonatangross

UI component library patterns for shadcn/ui and Radix Primitives. Use when building accessible component libraries, customizing shadcn components, using Radix unstyled primitives, or creating design system foundations.

validate-counts

97

yonatangross

Validates hook, skill, and agent counts are consistent across CLAUDE.md, hooks.json, manifests, and source directories. Use when counts may be stale after adding or removing components, before releases, or when CLAUDE.md Project Overview looks wrong.

architecture-patterns

97

yonatangross

Architecture validation and patterns for clean architecture, backend structure enforcement, project structure validation, test standards, and context-aware sizing. Use when designing system boundaries, enforcing layered architecture, validating project structure, defining test standards, or choosing the right architecture tier for project scope.

mpm-circuit-breaker-enforcement

80

bobmatnyc

Complete circuit breaker enforcement patterns with examples and remediation

File Upload Testing

71

PramodDutta

Comprehensive file upload testing including format validation, size limits, malware scanning, storage verification, and concurrent upload handling.

Verification Before Completion

71

PramodDutta

Enforces rigorous verification evidence before any claims of task completion, preventing false positives, untested deployments, and premature celebration with a structured gate function.

Configuration Testing

71

PramodDutta

Testing application configurations including environment variable validation, feature flag combinations, config file parsing, and default value verification.

Seeker Development Diagnosis

65

nikhilvallishayee

Diagnose seeker development patterns including return problem, knowledge validation, sacred company effects, self-effort vs fate balance, and progressive dispassion. Use when recognizing post-awakening integration challenges or developmental positions.

dag-output-validator

43

curiositech

Validates agent outputs against expected schemas and quality criteria. Ensures outputs meet structural requirements and content standards. Activate on 'validate output', 'output validation', 'schema validation', 'check output', 'output quality'. NOT for confidence scoring (use dag-confidence-scorer) or hallucination detection (use dag-hallucination-detector).

dag-permission-validator

43

curiositech

Validates permission inheritance between parent and child agents. Ensures child permissions are equal to or more restrictive than parent. Activate on 'validate permissions', 'permission check', 'inheritance validation', 'permission matrix', 'security validation'. NOT for runtime enforcement (use dag-scope-enforcer) or isolation management (use dag-isolation-manager).

site-reliability-engineer

43

curiositech

Docusaurus build health validation and deployment safety for Claude Skills showcase. Pre-commit MDX validation (Liquid syntax, angle brackets, prop mismatches), pre-build link checking, post-build health reports. Activate on 'build errors', 'commit hooks', 'deployment safety', 'site health', 'MDX validation'. NOT for general DevOps (use deployment-engineer), Kubernetes/cloud infrastructure (use kubernetes-architect), runtime monitoring (use observability-engineer), or non-Docusaurus projects.

rest-api-design

43

curiositech

Design REST API endpoints with Zod validation and OpenAPI documentation. Use when creating new API routes, validating request/response schemas, or updating API documentation. Activates for endpoint design, schema validation, error handling, and API docs.

pydantic

40

manutej

Comprehensive Pydantic data validation skill for customer support tech enablement - covering BaseModel, Field validation, custom validators, FastAPI integration, BaseSettings, serialization, and Pydantic V2 features

Convex Schema Validator

34

powroom

Defining and validating database schemas with proper typing, index configuration, optional fields, unions, and migration strategies for schema changes

Skill Validator

17

daffy0208

Validates that a skill or MCP implementation matches its manifest by running Codex-powered semantic comparisons across descriptions, preconditions, effects, and API surface.

hono-validation

15

bobmatnyc

Hono request validation with Zod, TypeBox, Valibot - type-safe input validation for JSON, forms, query params, and headers

Fastify

15

bobmatnyc

Production Fastify (TypeScript) patterns: schema validation, plugins, typed routes, error handling, security hardening, logging, testing with inject, and graceful shutdown

commit-validator

15

oimiragieo

Validates commit messages against Conventional Commits specification using programmatic validation. Replaces the git-conventional-commit-messages text file with a tool that provides instant feedback.

spec-critique

15

Oimiragieo Agent Studio Spec Critique

Self-critique specification documents using extended thinking — surfaces hidden assumptions, contradictions, missing edge cases, and scope creep before implementation

strict-user-requirements-adherence

15

oimiragieo

Strictly adheres to specified user flow and game rules, making sure to follow documented features.

qa-workflow

15

oimiragieo

QA validation and fix loop workflow — validates implementation completeness then iterates fix cycles until all acceptance criteria pass and quality gates clear

quality-audit

11

NickCrew

Meta-skill for auditing and validating skill quality. Use when reviewing skills for consistency, completeness, accuracy, and adherence to standards. Provides structured rubrics, scoring frameworks, and actionable recommendations.

doc-review

9

vladm3105

Review a single file or all files in a folder for data inconsistencies, reference errors, typos, and unclear terminology using parallel sub-agents

vulnerability-validation

8

Factory-AI

Validate security findings from commit-security-scan by assessing exploitability, filtering false positives, and generating proof-of-concept exploits. Use after running commit-security-scan to confirm vulnerabilities.

skill-md-validator

7

louloulin

Validates SKILL.md files for format, completeness, and best practices

ground-truth-template

7

YoungLeadersDotTech

Generic ground truth documentation template for creating verifiable reference skills. Auto-invoke when a user requests ground truth skill creation, a validation criteria framework, or canonical documentation templates. Do NOT load during actual ground truth usage (use project-specific skills instead).

target-validation

6

huifer

Comprehensive target validation assessing druggability, disease association strength, tractability, and competitive landscape. Use for go/no-go decisions on target selection. Keywords: target validation, druggability, tractability, disease association, genetic validation

target-profile

6

huifer

Generate comprehensive target profiles including druggability assessment, disease associations, pathway context, and competitive landscape. Use this skill when analyzing drug targets for validation, dossier creation, or competitive intelligence. Supports gene symbols (EGFR), protein names, or UniProt IDs. Keywords: target, dossier, validation, druggability, tractability, target analysis

complete-skill

4

valence-works

A comprehensive skill with all possible fields and resource types for testing complete parsing

rate-skill

2

AntJanus

Evaluate skill quality against best practices. Use when asked to "rate this skill", "review skill quality", "check skill formatting", "is this skill good", "evaluate SKILL.md", "grade this skill", or when validating skill files before publishing.

fte.vault.validate

assadsharif

Run the full validation suite (structure, state transitions, filenames) against the vault and report any violations.