A curated collection of skills, prompts, and workflows that extend Codex's capabilities — your personal grimoire for AI-powered development.
This repository also configures its own agents. See what codex-spellbook tells them →
Skill Claude CodeCodex
Use when building or debugging Temporal workflows in Python — structuring workflows and activities, enforcing determinism, handling retries and timeouts, managing state across replays, or diagnosing workflow failures.
Skill Claude CodeCodex
Git workflow guidance for branch naming, conventional commits, PR title format, merge strategy, and safe history rewriting. Use when creating branches, preparing commits, or reviewing repository hygiene.
Skill Claude CodeCodex
Use when creating, triaging, or filing GitHub issues — writing bug reports, feature requests, or task tickets; classifying severity; using the gh CLI; or handling edge cases like regressions, flaky failures, security vulnerabilities, or cross-repo dependencies.
Skill Claude CodeCodex
Use when writing or debugging non-trivial Go — error handling patterns, goroutine/channel design, interface composition, generics, context propagation, or Go-specific idioms like table-driven tests and functional options.
Skill Claude CodeCodex
Use when triaging a production alert, writing a postmortem, creating or updating a runbook, classifying incident severity, or setting up on-call escalation paths.
Skill Claude CodeCodex needs its repo
Use when writing Terraform for cloud resources, setting up remote state, structuring modules for reuse, managing multiple environments, reviewing a plan before apply, or importing and resolving state drift.
Skill Claude CodeCodex
Integration testing patterns for database state, API contracts, service boundaries, and component wiring. Use when testing how multiple parts of a system work together without mocks.
Skill Claude CodeCodex
Use when building or debugging LangGraph workflows — designing state graphs, adding conditional routing, wiring checkpointers, streaming tokens, implementing human-in-the-loop interrupts, or coordinating multi-agent subgraphs.
Skill Claude CodeCodex
Use when decomposing a monolith, designing inter-service communication, implementing circuit breakers or sagas, reasoning about data ownership across services, or setting up an API gateway for a distributed system.
Skill Claude CodeCodex
Use when writing async MongoDB queries with Motor, designing aggregation pipelines, creating indexes, running multi-document transactions, or working with adk.state in Agentex agents.
Skill Claude CodeCodex
Use when adding structured logging, instrumenting Prometheus metrics, wiring up distributed tracing with OpenTelemetry, writing alerting rules, defining SLOs and error budgets, or building a Grafana golden-signals dashboard.
Skill Claude CodeCodex
Use when building or debugging OpenAI Agents SDK workflows — defining agents with tools and handoffs, wiring typed context, streaming responses, adding guardrails, or integrating with the Agentex ADK.
Skill Claude CodeCodex
Build against the OpenAI API with current model selection, Responses API patterns, Codex model guidance, streaming, structured outputs, retries, and key management. Use when integrating OpenAI or Codex models into an app, service, CLI, or agent workflow.
Skill Claude CodeCodex
Use when load testing a service before launch or after a significant traffic change — writing k6 or Locust scripts, setting SLO-based pass/fail thresholds, diagnosing bottlenecks under load, or integrating performance tests into CI.
Skill Claude CodeCodex needs its repo
Use when diagnosing a slow endpoint, fixing N+1 queries, adding a caching layer, offloading CPU-bound work to threads, or defining a latency budget for a service.
Skill Claude CodeCodex
Use when writing complex PostgreSQL queries, diagnosing slow queries with EXPLAIN ANALYZE, designing indexes, handling concurrent writes, or planning safe schema migrations on large tables.
Skill Claude CodeCodex
Use when writing, reviewing, or adapting a Claude Code skill for sale on PromptBase — checking scope, audience breadth, rejection risk, description quality, examples, and setup instructions.
Skill Claude CodeCodex
Use when defining request/response schemas, writing custom validators, controlling serialization for PATCH endpoints, validating non-model data with TypeAdapter, or configuring app settings from environment variables with pydantic-settings.
Skill Claude CodeCodex
Python engineering guidance for type hints, pydantic validation, httpx usage, pytest conventions, pyproject structure, async patterns, and lightweight dependency injection. Use when building or reviewing Python services and libraries.
Skill Claude CodeCodex
Use when building advanced React features — designing custom hooks, using Suspense or error boundaries, working in Next.js App Router with Server Components or Server Actions, applying TypeScript generics, or building animated UI with Framer Motion, View Transitions, or scroll-driven animations.
Skill Claude CodeCodex
Use when choosing a Redis data structure for a use case, implementing caching or rate limiting, building pub/sub or Streams-based real-time messaging, or writing atomic operations like distributed locks.
Skill Claude CodeCodex
Use when writing a PRD, drafting user stories with acceptance criteria, breaking an epic into sprint-sized vertical slices, story pointing in planning poker, or defining a team's Definition of Done.
Skill Claude CodeCodex
Application security guidance covering OWASP Top 10 mitigations, secrets handling, boundary validation, SQL injection prevention, JWT usage, dependency scanning, and STRIDE threat modeling. Use for audits, auth changes, or any security-sensitive code.
Skill Claude CodeCodex needs its repo
Use when writing Playwright E2E tests for critical user journeys, setting up post-deployment smoke tests, debugging flaky browser automation, or implementing BDD feature files with Gherkin.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: