Agent skills for Codex CLI

Break a PRD, feature, or epic into user stories with acceptance criteria — vertically sliced, INVEST-checked, with Given/When/Then…

For applications based on the results obtained: establishes standard, burden of proof and counter-argument; result: test product with risk…

Use when a user asks how to authenticate as an agent, create or rotate API credentials, or understand the lifecycle of agent keys on…

Guidance for using the GContext graphics library on RISC OS for drawing primitives and rendering text.

Use when starting feature work that needs isolation from current workspace or before executing implementation plans.

Bootstrap skill — establishes how to find and use GodotPrompter skills, with platform-specific tool mapping

Use NTM as the out-of-session substrate for unattended AgentOps loops.

This skill should be used when performing browser automation with Playwright MCP in a project that has `.playwright/profiles.json`, when…

This skill should be used when building iOS apps with xtool (Xcode-free iOS development), creating xtool projects, adding app extensions…

Searches the USPTO database for patent metadata and downloads PDF candidates for research and AI ingestion.

usql is a universal command-line interface for SQL databases including PostgreSQL, MySQL, SQLite, Oracle, SQL Server, and dozens more.

Utility AI skill for scoring functions and decision making.

MUST USE for any browser-related tasks. Browser automation via Playwright MCP - verification, browsing, information gathering, web…

python's package managing

Comprehensive guide to using uv, an extremely fast Python package installer and resolver written in Rust, for modern Python project…

Deep expertise in Universal Verification Methodology (IEEE 1800.2) for FPGA verification

Create distinctive, production-grade frontend interfaces with high design quality.

Audit screens for UX issues using Nielsen's heuristics and modern mobile UX best practices

Create comprehensive UX design with user flows, wireframes, and design systems.

Add loading, empty, error, and success feedback states to StyleSeed components and pages with practical mobile-first rules.

Evaluate and improve interface usability using heuristic analysis.