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NeVibeCode · 380 items

Codex skills, plugins, subagents and slash commands

Everything that installs into Codex: skills, plugins, subagents and slash commands. Each card has an install command and example prompts.

brainstorming Jesse Vincent skill This skill clarifies a task before implementation by asking questions, checking context, and comparing approaches. Use it for new features and other creative work. Claude Code 404,045installs systematic-debugging Jesse Vincent skill Makes the agent investigate the cause of a failure before it suggests a patch. Use it for failing tests, build errors, and behaviour that does not match expectations. Claude Code 306,118installs writing-plans Jesse Vincent skill Creates an implementation plan from a spec before code changes begin. Use it when a task has multiple steps, files, and tests. Claude Code 282,859installs using-superpowers Jesse Vincent skill Checks for relevant skills before an agent responds or takes action. Use it when you want a fixed workflow for handling tasks. Claude Code 270,479installs requesting-code-review Jesse Vincent skill Sends completed work to a reviewer subagent after a task, major feature, or before merging to main. It keeps the review focused on the change and its requirements. Claude Code 262,135installs test-driven-development Jesse Vincent skill Guides feature work and bug fixes through TDD: write a failing test, then add minimal code. Use it when test-first discipline matters. Claude Code 259,292installs verification-before-completion Jesse Vincent skill This skill blocks completion claims until the agent runs a fresh check and reads the result. Use it before commits or PRs when an agent report is not enough. Claude Code 251,313installs executing-plans Jesse Vincent skill Runs an implementation plan in the current session instead of assigning each task to a subagent. Use it for inline work with TDD, a decision ledger, and a final branch review. Claude Code 242,988installs subagent-driven-development Jesse Vincent skill This skill runs an implementation plan through fresh subagents for independent tasks and reviews each result. Use it for multi-step work in one session. Claude Code 237,746installs receiving-code-review Jesse Vincent skill Reviews code review feedback before changes: it clarifies unclear points, checks the repository, and supports reasoned pushback. Use it before acting on review comments. Claude Code 221,216installs dispatching-parallel-agents Jesse Vincent skill Dispatches independent tasks to separate subagents so they can investigate them in parallel. Use it for unrelated test failures and separate broken subsystems. Claude Code 218,235installs writing-skills Jesse Vincent skill Applies a TDD workflow to authoring and checking agent skills: observe failure first, then write instructions that address it. Use it when creating or editing SKILL.md files. Claude Code 217,894installs using-git-worktrees Jesse Vincent skill Prepares an isolated workspace before feature work or plan execution. It checks the repository first, then uses native worktree support or Git. Claude Code 217,153installs finishing-a-development-branch Jesse Vincent skill This skill checks the test suite and guides branch completion: merge locally, open a Pull Request, or leave the work in place. Claude Code 214,439installs diagnosing-superpowers Jesse Vincent skill Investigates a failed Superpowers session through its transcripts and builds an evidence-based report. Use it when work repeats, plans are ignored, or a skill fails to fire. Claude Code 19,996installs typescript-advanced-types Seth Hobson skill Guides an agent through advanced TypeScript types, from generics to conditional and mapped types. Use it for typed libraries, API clients, or strict configuration objects. Claude Code Cursor 92,169installs tailwind-design-system Seth Hobson skill Helps build design systems with Tailwind CSS v4, from theme tokens to component variants. Use it when a project needs shared UI patterns. Claude Code Cursor 70,180installs bigquery-basics official google skill Manages BigQuery resources and runs SQL queries. Use it to create datasets, tables and views, or handle basic data ingestion and analysis. Claude Code Gemini CLI 17,678installs cloud-run-basics official google skill This skill helps an agent manage Cloud Run services, jobs, and worker pools when a project needs HTTP deployment, scheduled work, or pull-based background processing. Claude Code Gemini CLI 17,532installs gemini-api official google skill Connects Gemini API from Google Cloud Agent Platform to the agent. Gives access to Gemini models, multimodal input, function calling, and context caching. Claude Code Gemini CLI 17,116installs google-cloud-recipe-auth official Google LLC skill This skill explains Google Cloud authentication and permissions. Use it when setting up IAM, ADC, or service accounts for local code and production workloads. Claude Code Gemini CLI 15,450installs google-cloud-recipe-onboarding official Google LLC skill Guides a developer through a first Google Cloud project: CLI checks, sign-in, project setup and billing. It fits a personal first project. Claude Code Gemini CLI 15,390installs cloud-sql-basics official google skill This skill helps create and explain Cloud SQL resources for MySQL, PostgreSQL, and SQL Server. Use it when setting up a database in Google Cloud. Claude Code Gemini CLI 14,679installs google-cloud-waf-security official google skill This skill reviews Google Cloud workloads against the security pillar of the Well-Architected Framework and suggests actions for IAM, networks, data, and operations. Claude Code Gemini CLI 14,620installs google-cloud-waf-cost-optimization official google skill Reviews Google Cloud workloads through the Well-Architected Cost Optimization pillar. Use it to inspect spending, resize resources, assess discounts, or find idle capacity. Claude Code Gemini CLI 14,266installs firebase-basics official google skill Sets up Firebase CLI access, sign-in, and project selection. Use it before creating a project or fetching Android and iOS app config files. Claude Code Gemini CLI 14,100installs google-cloud-waf-reliability official google skill Reviews Google Cloud workload reliability and guides HA, DR, SLO, and recovery planning. Use it when designing fault-tolerant cloud architecture. Claude Code Gemini CLI 14,039installs gke-basics official google skill This skill covers GKE cluster creation, kubectl credentials, and the choice between Autopilot and Standard. Use it to set up a cluster and deploy workloads. Claude Code Gemini CLI 13,953installs alloydb-basics official google skill Use this skill to create and configure AlloyDB for PostgreSQL clusters and instances, manage backups, and work with AlloyDB MCP tools. It is for AlloyDB administration. Claude Code Gemini CLI 12,991installs brand-landingpage Travis D. Elliott skill This skill interviews you about the product and its visual direction, then builds a landing page through Stitch. Use it when there’s no established design yet. Claude Code Cursor 39,476installs python-testing-patterns Seth Hobson skill This skill guides Python testing with pytest, fixtures and mocks. Use it when building a test suite or tracking down failing checks. Claude Code Cursor 36,943installs google-cloud-networking-observability official google skill Investigate Google Cloud network logs, metrics, and connectivity paths. Use it to trace packet drops, firewall blocks, or routing problems. Claude Code Gemini CLI 11,856installs python-performance-optimization Seth Hobson skill This skill profiles Python code to locate CPU and memory bottlenecks. Use it when an application responds slowly or consumes too many resources. Claude Code Cursor 35,675installs gcloud official Google LLC skill Checks syntax for specific gcloud commands and limits command output. Use it when an agent plans or runs Google Cloud CLI operations. Claude Code Gemini CLI 10,974installs nextjs-app-router-patterns Seth Hobson skill This skill covers Next.js App Router patterns for rendering, routing, and data fetching. Use it when starting an App Router project or moving from Pages Router. Claude Code Cursor 32,529installs gemini-interactions-api official google skill This skill guides Gemini Interactions API usage on Gemini Enterprise Agent Platform for stateful chats, background tasks, streaming, and function calling. Claude Code Gemini CLI 10,434installs agent-platform-skill-registry official google skill Connects agents to the Gemini Enterprise Agent Platform Skill Registry for discovery and lifecycle tasks. Useful when your workflow manages registered skills. Claude Code Gemini CLI 10,068installs api-design-principles Seth Hobson skill Use this skill to plan or review REST and GraphQL APIs. It helps when writing a specification or setting API conventions for a team. Claude Code Cursor 30,348installs code-review-excellence Seth Hobson skill This skill guides pull request reviews, catches logic and security issues, and helps teams give specific feedback. Use it for review standards or developer mentoring. Claude Code Cursor 30,193installs google-cloud-waf-operational-excellence official google skill Provides Google Cloud operations guidance for CI/CD, monitoring, logging, and incidents. Use it when reviewing CloudOps practices for a workload. Claude Code Gemini CLI 9,636installs

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Codex is the OpenAI coding agent for the terminal, IDEs and the cloud; its docs now live on learn.chatgpt.com. Project rules come from AGENTS.md: files are concatenated from the repository root down to the current folder, AGENTS.override.md takes precedence over a regular file, and the default cap is 32 KiB.

Skills go in .agents/skills/ in the project and ~/.agents/skills/. Curated ones install with $skill-installer, and you call a skill with $name or /skills. MCP servers are configured in ~/.codex/config.toml (TOML, not JSON) or added with codex mcp add. Codex also has hooks in hooks.json or [hooks] tables, custom agents as TOML files in .codex/agents/, and plugins, which /plugins opens in the CLI. Custom prompts are deprecated, and so is the openai/skills repository, replaced by openai/plugins.

Step by step: installing Codex skills. Choosing: Claude Code vs Codex.

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