AI Agent Skills Marketplace

Builds the organizational memory schema your AI agent needs to answer why — capturing decision provenance, causal chains, and event context that embedding-based retrieval permanently discards.

Catches dangerous database migrations before they hit production. Reviews schema changes for locking hazards, data loss, missing rollbacks, and index issues across PostgreSQL, MySQL, and SQLite.

prompt-engineer

by Roy Yuen

Popular

Free

Professional prompt engineering patterns for building robust, secure, and production-ready LLM applications.

Standardized accessibility descriptions and verified analysis for electronic, hydraulic, and pneumatic schematics.

Turn plain English app descriptions into fully normalized SQL schemas and entity relationship documentation.

Generate production-ready SEO meta tags, Open Graph cards, and JSON-LD schema markup from any URL or description.

Generate realistic JSON or CSV test data from plain-English schema descriptions with up to 1,000 rows.

Generate structured document control packs, metadata schemas, and project registries from intake data.

A safety-first framework for professional database modeling, zero-downtime migrations, and risk-aware schema evolution.

A safe, expert-level database troubleshooter for fixing migrations, performance issues, and schema drift.

Master the "Trinity" of Belgian Search: SEO, AEO, and GEO copy for SMEs to rank on Google and get cited by AI.

PII & Data-Leak Scanner

by JustHandled Labs

$15

or 75 cr

Scan your schemas, seed data, config, and logs for personal data before it leaks. Detects PII-indicating column and key names (email, ssn, phone, address) across SQL, CSV, and JSON, plus PII in the data itself: email addresses, SSN-like numbers, credit-card-like numbers, phone numbers, and PII written into log files. Each finding is flagged with its location and a GDPR-style review note. Heuristic by design: it surfaces what to review, not a compliance guarantee.

Deploy conversion-optimized, schema-rich websites for vets, grooming salons, and pet boarding businesses.

Deploy high-conversion, single-file retail websites with Store schema for local SEO and AI visibility.

Deploy appetizing, local-SEO-optimized landing pages for bakeries, butchers, and specialty food shops.

dbt Test & Quality Auditor

by JustHandled Labs

$15

or 75 cr

Audit your dbt project for the test and documentation gaps that let bad data ship. Flags models with no unique or not_null tests, sources missing freshness config or tests, likely keys without a not_null test, models missing descriptions, SELECT * in models, and raw table references that should use ref() or source(). Each finding comes with a suggested tests: YAML snippet to drop into schema.yml.

Deploy high-energy, single-file websites for gyms and studios with integrated HealthClub SEO schema.

MCP Server Starter & Safety Kit

by JustHandled Labs

$29

or 145 cr

Scaffold and audit secure MCP servers with input schemas, confirmation gates, and safety-first tool definitions.

Deploy a gallery-forward, SEO-optimized portfolio website for photographers and creative studios.

MCP Server & Tool-Definition Security Gate — Audit Tools Against the OWASP Agentic Top 10 Before You Connect

by PubsProToolkit

$16

or 80 cr

An adversarial gate that audits an MCP server or agent tool definition — schemas, descriptions, scopes, auth — for tool poisoning, excessive agency, injectable descriptions, and missing access controls, then returns one SAFE/REVIEW/BLOCK verdict.

🛡️OpenAPI Contract Guard

by JustHandled Labs

$12

or 60 cr

Lint an OpenAPI spec and diff two versions to catch breaking API changes before they reach consumers. Within a spec it flags missing operationId, success responses with no schema, untyped parameters, operations with no security requirement, and unbounded arrays/strings. Across two versions it flags removed paths and operations, removed response codes, a parameter becoming required, narrowed parameter types, removed enum values, and removed response fields. Analyzes JSON specs (convert YAML to JSON first).

Deploy conversion-optimized, single-file websites for garages and auto shops with built-in AutoRepair SEO schema.

Agent-Ready Storefront Audit — Make Sure AI Shopping Agents Can Discover & Buy Your Products

by PubsProToolkit

$14

or 70 cr

Audit your online store to ensure it is discoverable and purchasable by autonomous AI shopping agents.

🔁 Model Migration Checker

by JustHandled Labs

$15

or 75 cr

Find the model-version coupling that breaks when you swap LLMs. Flags hardcoded model names and versions, deprecated or renamed parameters (the max_tokens to max_completion_tokens class of change), hardcoded token and context-window limits, response-format parsing tied to one model's output, tool-schema format coupling between providers, and hardcoded per-token cost constants. The patterns load from an editable model-rules table you update as new models ship.