Browse The Skill Store

Architectural strategist that converts flat prompts into structured, multi-file ChatGPT Skill blueprints.

Optimization Loop

by Martin Gunderman

$19

Autonomous loop that iteratively modifies, evaluates, and selects the best version of any text resource — skills, prompts, or campaigns — using a modify-measure-keep/discard cycle.

The complete Nex Prompt Booster Chrome extension (real shipped Manifest V3 source): turn short, lazy AI prompts into detailed, structured, expert-quality prompts instantly, right inside ChatGPT, Claude, Gemini, Perplexity and Grok, with no API calls. Ships the full extension plus the dev loop, customization guide, and Web Store packaging steps. No build step.

Prompt Engineering Specialist

by Arnstein Larsen

$8.99

Production prompts grow by accretion — every failure gets another appended rule until the prompt is two thousand words of contradictions that the model navigates unpredictably

MCP Server Builder

by PubsProToolkit

$24

Scaffold a secure, spec-compliant MCP server from a description of the tools you want to expose. Sets up the official SDK (TypeScript or Python/FastMCP), defines tools/resources/prompts with strict JSON Schema, wires the right transport (stdio or Streamable HTTP), adds OAuth 2.1 for remote, and hardens against the MCP-specific footguns — prompt injection via tool output, token passthrough, over-broad scopes, command/path/SSRF injection, leaked secrets — before it ships. Returns a runnable skeleton plus a security checklist. Built by someone who's shipped production MCP servers.

AI Feature Eval Writer

by PubsProToolkit

$14

Design and write the eval suite for your LLM-powered feature — the metrics that match your failure modes, a golden dataset plan with starter cases, anchored rubrics, LLM-as-judge prompts with the known bias mitigations, and pass/fail gates wired for CI.

💸 LLM Cost Leak Linter

by JustHandled Labs

$12

Find the code that quietly runs up your LLM bill: uncapped generations, model calls looping with no limit, an expensive model doing a trivial job, and whole files stuffed into prompts. Read-only, every finding explained in plain English.

AI Agent QA & Failure Testing Specialist

by Shandra

$15

Tests AI agents, prompts, and agent skills against edge cases, unsafe behavior, output failures, permission risks, escalation gaps, memory leaks, and marketplace-quality weaknesses.

Subagent Team Designer

by PubsProToolkit

$14

Design the right team of specialized AI subagents for your project and get the definition files written properly — precise delegation triggers, focused system prompts, least-privilege tools, and the right model tier for each job. Includes a template, orchestration patterns, and a complete sample team.

AI Coding Prompt Refiner for Better Developer Results

by Shandra

Free

Transforms vague coding requests into precise, scoped, testable, AI-ready prompts for Cursor, Claude Code, Codex CLI, Replit, and other coding agents.

ai productivity

by Roy Yuen

Free

High-speed intake for shaping vague prompts, triaging complex tasks, and compressing context for efficient execution.

Transform repetitive, messy prompts into structured, reusable SKILL.md files for your AI agents.

Master Claude Code's settings hierarchy and hook framework to automate workflows and silence repetitive prompts.

Transform raw ideas into high-performance, structured prompts optimized for Grok’s reasoning and wit.

PromptShift

by Alvaro

Free

PromptShift is a minimal prompt adapter that preserves intent while improving clarity across AI models.

5 realistic visual styles, character modeling, I2V prompts, cinematic shot design, uncanny valley prevention.

Hardens AI prompts and agent workflows against logic errors, tool-misuse, and prompt injection.

AI Prompt Injection Defense Shield & LLM Jailbreak Security Auditor Code Review Agent

by Brandon DeVries

Free

Stop leaving your AI startup exposed to malicious users trying to steal your proprietary system prompts or bypass your paywalls. The AI Prompt Injection Defense Shield is an automated code review agent that deeply analyzes your Next.js or Python backend, instantly detecting insecure LLM input fields, un-sanitized API data streams, and weak prompt boundaries. By automatically generating the exact copy-paste code patches required to harden your AI wrapper against the latest OWASP top 10 LLM vulnerabilities, this skill allows solo developers and indie hackers to confidently launch their SaaS without the fear of massive, unexpected API billing spikes or catastrophic data leaks.

Generate cinematic, realistic high-definition videos from text prompts using Minimax and fal.ai.