470 boosters for "lit" — open source, verified from GitHub, ready to install
An expert SRE agent that helps teams define SLOs, manage error budgets, build observability systems, and reduce toil in production environments. Ideal for engineering leaders and platform teams scaling reliable systems.
API Tester is an expert agent that automates comprehensive API validation, performance testing, and security checks across integrations. It helps developers catch issues before users encounter them through advanced testing methodologies.
Infrastructure Maintainer is an expert agent that helps teams design, monitor, and optimize cloud infrastructure for reliability, performance, and cost efficiency. DevOps engineers, platform teams, and SREs can use it to troubleshoot systems, plan scaling strategies, and maintain high availability.
An expert accessibility auditing agent that evaluates interfaces against WCAG standards and assistive technologies to identify barriers and ensure inclusive design. Ideal for developers, QA teams, and product managers who need systematic accessibility validation.
Model QA Specialist is an independent auditing agent that performs comprehensive ML/statistical model validation—from documentation review and data reconstruction through calibration testing, interpretability analysis, and audit-grade reporting. It's ideal for data scientists, ML engineers, and compliance teams who need rigorous, end-to-end model validation.
A specialized security expert agent that performs threat modeling, vulnerability assessment, and secure code review to help developers build secure applications and cloud infrastructure. Ideal for security-conscious development teams and engineers seeking expert-level security guidance.
Cursor rules that provide AI coding agents with guidance for developing the Streamlit library itself (backend, frontend, protobufs), rather than building Streamlit applications.
A curated directory of high-quality plugins for Claude Code. Plugins can be installed directly from this marketplace via Claude Code's plugin system. or browse for the plugin in
A skill for building and scaffolding ChatGPT Apps SDK applications that combine MCP servers with widget UIs, using a docs-first workflow. Developers building ChatGPT extensions and integrations benefit from structured guidance on tool design, UI registration, and SDK compliance.
Automates translation of Figma designs into production-ready code with pixel-perfect visual accuracy using the Figma MCP workflow. Ideal for developers and designers who need to implement designs quickly while maintaining design fidelity.
Generates spoken audio from text using OpenAI's TTS API, supporting single clips, batch operations, and accessibility reads. Developers building voiceovers, IVR systems, or accessible content will find this directly useful.
Generates repository-grounded threat models that identify trust boundaries, assets, attack paths, and mitigations in application code. Ideal for security engineers and developers performing AppSec threat modeling on specific codebases.
This booster enables OS-level desktop and window screenshot capture when users explicitly request it or when tool-specific capabilities are unavailable. Developers and AI assistants benefit from having a fallback capture mechanism for debugging, documentation, and UI inspection tasks.
Analyzes git repositories to map security ownership, identify bus factors, and detect orphaned sensitive code, exporting results for graph visualization. Essential for security teams and DevOps engineers managing code risk and maintainer dependencies.
A meta-guide that helps users create or update specialized skills to extend Codex's capabilities with domain-specific knowledge and workflows. Developers and AI agents building custom extensions benefit from this structured approach to skill development.
A skill for bootstrapping, developing, and designing modern WinUI 3 desktop applications with C# using Microsoft's official guidance and patterns. Useful for Windows developers building new apps or troubleshooting WinUI-related setup and implementation challenges.
1. Run the scaffold script: 2. Open and replace placeholders. 3. Generate or update the repo marketplace entry when the plugin should appear in Codex UI ordering:
This booster equips AI coding assistants with specialized guidance for reading, creating, and editing Word documents programmatically while maintaining formatting and layout fidelity. Developers working with `.docx` files—especially those requiring professional formatting, tables, or visual validation—will find this booster invaluable.
Enables AI assistants to programmatically create and edit PowerPoint presentations using PptxGenJS with layout helpers and validation utilities. Developers and content creators benefit from automating slide deck generation, modification, and troubleshooting.
Delight is a skill booster that helps developers add joyful, personality-driven touches to interfaces—transforming functional designs into memorable user experiences. It benefits product teams, UX-focused developers, and anyone building customer-facing applications.
The animate booster helps developers enhance UI features with purposeful animations and micro-interactions that improve usability and user delight. It's ideal for product engineers and designers working in Cursor who want to add polish and feedback mechanisms to their interfaces.
A skill that helps developers create distinctive, production-grade frontend interfaces with polished aesthetics and creative design choices, avoiding generic AI-generated outputs. Ideal for developers building web components, pages, and applications who want professional design quality.
An audit skill that systematically evaluates interface quality across accessibility, performance, theming, and responsive design, generating prioritized reports with severity ratings and actionable recommendations. Ideal for developers and QA teams seeking to identify and document UI/UX issues before fixes are implemented.
Polish is a final quality assurance skill that refines UI/UX details like alignment, spacing, and consistency before deployment. It's useful for developers and designers who want to elevate finished features from good to production-ready.
