Agent skills for Codex CLI

Expert in Astro framework with static generation and partial hydration patterns

Astro changes since training cutoff (latest: 6.0) — Sessions API, Fonts API, live collections, CSP, route caching, responsive images, SVG…

Set up and evolve Astro content collections with typed schemas and reliable querying patterns.

Astro framework patterns, islands architecture, content collections, rendering strategies, and deployment.

Astro-specific performance optimizations for 95+ Lighthouse scores.

Automated derivation and simplification of Big-O, Big-Omega, and Big-Theta expressions for algorithm analysis

Implements a standardized asynchronous state machine pattern for long-running API tasks to prevent gateway timeouts and system instability.

Design, implement, and review frontend behavior around asynchronous operations such as data fetching, mutations, uploads, polling…

Python asyncio patterns with TaskGroup, structured concurrency, and modern 3.11+ features.

Provides file paths to language-specific extension files for the code-testing pipeline.

Use this skill before answering, planning, or editing any MSTest 3.x-to-4.x upgrade or post-upgrade failure.

Deep formal test smell audit based on academic research taxonomy (testsmells.org).

Interface with AtCoder for Japanese competitive programming contests

Design and review acceptance / end-to-end tests with the four-layer model (spec / DSL / protocol driver / SUT).

Sets up and runs Atheris, the coverage-guided Python fuzzer built on libFuzzer.

Build a lightweight athlete profile across Strength, Speed, and Endurance using validated scores or assessment evidence.

Applies event-driven async messaging to decouple producers and consumers.

Knowledge engineer — architecture docs, ADRs, diagrams, changelogs, onboarding, and reports.

Recommend a proportionate available model, reasoning effort, and agentic execution mode before substantive work; use for model choice…

Atlassian Administrator for managing and organizing Atlassian products, users, customization of the Atlassian suite, permissions…

Atlassian Confluence expert for creating and managing spaces, knowledge bases, and documentation.