Agent skills for Codex CLI

Use when the user wants a structured review of a specific EB-2 NIW document — petition letter, recommendation letter, business plan…

Manage Nix packages, flakes, and configurations using Determinate Nix installer patterns.

specialized protocol for NixOS system architecture and debugging.

NixOS module patterns. Use when creating or editing NixOS/home-manager modules, adding packages, or configuring programs.

When to activate: NLP, text classification, NER, spaCy, NLTK, sentence-transformers, embeddings, text similarity, tokenization

Implement and consume the NLWeb /ask REST endpoint — request shape (GET/POST, query-string and v0.55 structured body), SSE streaming…

Search and inspect datasets in the Norwegian Marine Data Centre (NMDC, metadata.nmdc.no) — natural-language queries by keyword, provider…

Parallel adversarial review protocol that launches two independent blind judge sub-agents simultaneously to review the same target…

Finalize artifacts from the accepted result while preventing rejected session-only alternatives and correction history from leaking into…

AI tutoring skill for focused, distraction-free learning.

Periodic pass that keeps a project's verification skill and feature map honest: parallel source readers per feature, one live session…

Use for 'why does X work this way', 'why we picked Y', design rationale, regressions, postmortems, or data-backed thresholds.

Process large datasets efficiently using chunk(), chunkById(), lazy(), and cursor() to reduce memory consumption and improve performance

Safe database change patterns; when to modify vs add migrations; always pair models with migrations and factories; seeding guidance

Portable storage configuration across S3/R2/MinIO with optional CDN—env toggles, path-style endpoints, and URL generation

Build Node.js backends for BigCommerce apps — Express/Fastify servers, OAuth handling, JWT verification, API proxy, webhook processing…

Prevent Ethereum hashing bugs in JavaScript and TypeScript.

When to activate: Node.js, Express, Fastify, streams, EventEmitter, child_process, cluster, worker_threads, HTTP server

Internal helper agent. Invoked by orchestrator agents via Task tool. Internal helper for document file discovery, inventory building, and…

Normalize design to match your design system and ensure consistency

Polish rough notes into high-quality documents — add structure, improve expression, and enhance formatting while preserving the original…