Spellbook skill for Codex
Cross-runtime skills for Claude Code, Codex, and multi-agent workflows.
How to install Spellbook in Codex
In Codex, ask the built-in skill installer for it:
$skill-installer install the <skill> skill from https://github.com/majiayu000/spellbookType this in Codex and replace <skill> with a folder name from 'What it contains'. $skill-installer is the skill installer built into Codex, and it downloads the skill from GitHub. Restart Codex if the skill doesn't show up. Check the repo README for any setup it needs. Source: Codex skills docs.
Or copy the skill folder (the one with SKILL.md) into ~/.agents/skills to use it in every project, or into .agents/skills in a repo to share it with that repo. Codex picks up new skills automatically. (where Codex loads skills)
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What it contains
Skills (119)
agent-qa-testing— Use when a project uses agent-qa and the user asks to validate its YAML, run a selected regression test, or triage a failed/healed run with memidex evidence. For a general app feature inventory, use app-user-story-qa.agentsmd-optimize— Audit and organize AI coding-agent instructions, including AGENTS.md, CLAUDE.md, skills, and agent definitions. Use when the user asks to diagnose conflicting instructions, excessive approval pauses, broad skill triggers, duplicate guidance, or broken…agentsmd-scaffold— Generate or update repository-specific AGENTS.md instruction files from real repo evidence. Use when asked to create, design, scaffold, split, or improve root or scoped AGENTS.md files for Codex/Claude/agent workflows, especially when a repo needs…api-design— REST/GraphQL/gRPC API design best practices. Use when designing APIs, defining contracts, handling versioning. Covers OpenAPI 3.2, GraphQL Federation, gRPC streaming.app-ui-design— Mobile app UI design expert for iOS and Android. Use when designing app interfaces, creating design systems, ensuring accessibility, or following platform guidelines. Covers Material Design 3, Human Interface Guidelines, color theory, typography, and 2025…app-user-story-qa— End-to-end app feature inventory and user-story testing workflow with a canonical tracker. Use when the user asks to audit every feature, derive expected behavior from code, test user journeys, or explicitly fix and retest documented UX or logistical defects.architecture-foundation— Design architecture foundations before implementation. Use when asked to design or refactor architecture, choose Rust/Go crate, package, module, runtime, workflow, or service boundaries, compare mature project architecture, prevent stacked one-off PRs, audit…architecture-research— Evidence-driven architecture research for understanding real systems and making technical decisions. Use when doing architecture landscape studies, source-backed system archaeology, build-vs-buy or adopt/adapt/build decisions, open-source and commercial…ascii-backdrop— Turn any subject into an animated ASCII backdrop behind a UI, like a dark prompt page with jellyfish drawn in drifting characters, or a swarm of colour-tile bodies that veer away from the cursor. The subject is open-ended: creatures, objects, particles…ask-opencli— Ask Grok or Gemini via opencli (browser-session based, no API cost). Use when the user says "问 grok", "问 gemini", "ask grok", "ask gemini", "用 grok 查", "grok 怎么看", "让 gemini 分析", or wants a second opinion from Grok/Gemini without paying API tokens. Routes to…auth-security— OAuth 2.1 + JWT authentication security best practices. Use when implementing auth, API authorization, token management. Follows RFC 9700 (2025).avoidance-coach— Guide a self-help conversation for someone stuck in an avoidance loop: low mood, emptiness, stress, or loneliness they escape from with games, scrolling, or other distractions instead of facing. Use when the user says they keep avoiding a problem, feel empty…blender-editable-3d— 根据参考图、带尺寸的设计图或文字概念,在 Blender 中制作由独立命名零件组成的可编辑 3D 模型,再按用户要求修改尺寸、部件和配色,交付 .blend、GLB 和多角度渲染。用于图纸转三维、产品概念建模和风格化硬表面道具,以及“做一个同样的案例,换成坦克或其他物体”等请求;不用于人物角色、头发或脸部建模,这些请求使用 blender-reference-to-3d。以可继续修改的几何工程为核心;不默认制作拆解动画、录屏、绑定或制造模型。blender-reference-to-3d— 根据人物参考图在 Blender 制作、修整和配色可编辑角色,尤其适用于二次元头部与头发、静态多角度展示。覆盖输入拆解、轮廓与五官标注、九视图参考、模板选型、几何实现、材质配色、视觉检查和工程交付;当用户要求图转三维头像、按参考建模、修复相似度、完善配色或运行完整人物制作流程时使用。仅分析、写流程或封装技能时不修改模型。build-product-demo— Plan, produce, or diagnose evidence-backed product demo videos and screen-recorded promotional walkthroughs. Use when the user asks to make a product demo, launch video, feature showcase, app walkthrough, demo reel, or polished recording; wants every…capability-distill— 能力蒸馏工作流——从用户批准的强模型访谈或真实任务轨迹中提取非显然的判断规则,形成可审计的 judgment packet,再交给 skill-audit 和 skill-creator 决定是否落成可加载 skill。当用户说“蒸馏这个模型的判断力”“把这次任务的关键决策固化下来”“模型窗口要关了,保留它在某类场景的判断”时使用。普通流程文档、直接写 SKILL.md、泛化最佳实践或未授权的会话日志扫描不使用本 skill。clash-doctor— Clash Verge 与 mihomo 诊断和 profile 管理。当用户遇到代理失败、需要配置 AI 工具路由、本地 Hub 拓扑、多机对齐、TUN 绕过、克隆或切换订阅,或同步后 配置未生效时使用。进程线路使用 clash-routes,出口 IP 质量使用 ip-check。 普通网络测速不使用。clash-routes— 查看本机进程的 Mihomo 实时代理链。当用户问 Claude、Codex、Gemini、ChatGPT、 浏览器或其他进程走哪个代理时使用。只读。Profile 拓扑和写入使用 clash-doctor, 出口 IP 质量使用 ip-check。claude-code-reverse— 对用户拥有或明确获授权的本机可执行文件、应用二进制和版本产物做只读静态逆向,包括 Claude Code 及其他 CLI、Mach-O、ELF、PE、Wasm 或打包应用。仅在用户明确要求“逆向、扒实现、查二进制字符串/符号/依赖、验证内部行为、比较两个版本”时使用;不要因普通提及软件而触发,也不要用于执行未知样本、绕过授权/计费、破解或再分发。cliproxy-newapi-stack— 在已经过独立验证的 CLIProxyAPI upstream 之上部署 NewAPI 计费层,把 Codex/Claude/Gemini/Qwen 等订阅账号包装成可计费的 OpenAI 兼容 API。本 Skill 不负责新建裸 CLIProxyAPI;负责 NewAPI Docker 部署、容器到宿主桥接、模型计费倍率、参数化额度修正、多账号 OAuth 凭据热加载和双路径验证。当用户说“给现有 cliproxy 加 NewAPI”“配置 NewAPI 渠道接已运行的 cliproxy”“NewAPI…codebase-audit— 全面代码库审计 — 自适应并行深度分析(前后端契约、数据完整性、异常处理/安全、架构/技术债、配置/缓存),结构化 findings + 对抗验证 + 基线对比,输出按严重程度排序的统一报告和修复路线图。支持 quick 快速体检模式。Use when user asks to audit, analyze, or review an entire codebase for design issues, find hidden bugs, check architecture health, or asks…codex-agent— Use when you want a second-opinion review via Codex CLI, cross-verification after another agent implements changes, debugging help, or alternative implementation proposals. Requires Codex CLI to be installed and authenticated.codex-fluent— Use when Codex feels slow, bloated, or heavy after heavy use. Provides safe session hygiene, archive strategy, and handoff discipline to keep daily Codex usage responsive and low-friction. Always pairs with comprehensive handoffs before archiving active work.codex-log-guard— Diagnose excessive Codex local SQLite diagnostic log writes with read-only evidence by default. Use when a user mentions logs_2.sqlite, logs_2.sqlite-wal, block_log_inserts, SSD/TBW wear, or explicitly asks to protect, clean up, verify, or restore Codex…codex-retrospective— Use when you want Codex to review its own recent history (last N days or specific period) and improve its behavior. Produces minimal, high-signal updates to AGENTS.md and tiny reusable skills. The goal is long-term fluency — Codex gradually becomes better at…codex— Use when the user asks to run Codex CLI (codex exec, codex resume) or references OpenAI Codex for code analysis, refactoring, or automated editingcomprehensive-testing— Complete testing strategy covering TDD workflow, test pyramid, unit/integration/E2E/property testing, framework best practices (Jest, Vitest, pytest), mock strategies, and CI integration. Use when writing tests, reviewing test quality, or establishing…config-secrets-environments— Design, audit, and verify configuration, environment separation, secrets, BYOK flows, key rotation, config schema validation, and drift checks across local, dev, staging, and production. Use when adding env vars, changing runtime config, handling API keys or…contribution-architectcontributorcss-debugdata-contract-migrationsdatabase-patternsdev-architecture-playbookdevops-excellencedisk-cleanerelegant-architecturefigma-to-codefigma-to-reactflowguardfrontend-designgemma4-local-deploygit-commit-smartgithub-trendinggolang-webgpu-useharmonyos-apphumanizeridea-analogistidea-devils-advocateidea-researchidea-teamidea-to-productillustrated-galleryincident-slo-runbookip-checkmodel-inference-optimizemulti-ai-researchmulti-model-orchestratornpm-supply-chain-checkobservability-sreoptimize-networkperformance-capacityplaywright-automationprd-masterproduct-analyticsproduct-discoveryproduct-manager-toolkitproduct-ux-expertproject-health-auditorpython-projectreact-best-practicesreact-hooks-best-practicesrecaprelease-engineeringrepo-agent-context-auditrepo-scaffoldreview-agent-harnessreview-gaterust-best-practicesrust-projectrustdesk-doctorsecurity-threat-modelserver-securityskill-auditskill-checkupskill-creatorskill-ecosystem-doctorskill-lifeguardskill-usage-statsslidessol-luna-routerstructured-logging-litesystem-doctorsystematic-debuggingtechnical-specthreadstrip-plannertypescript-projectui-design-systemui-designerui-ux-pro-maxvibeguardvscode-doctorweb-artifacts-builderweb-asset-generatorxiaohongshu-netfeel-guardianxiaohongshuxrayzig-projectidea-analogistidea-devils-advocateidea-researchidea-teamidea-to-productapp-ui-design— Mobile app UI design expert for iOS and Android. Use when designing app interfaces, creating design systems, ensuring accessibility, or following platform guidelines. Covers Material Design 3, Human Interface Guidelines, color theory, typography, and 2025…figma-to-reactfrontend-designui-design-system
About this listing
Spellbook is a community collection of agent skills on GitHub by majiayu000: folders with a SKILL.md file, the format Codex loads skills from. Its README mentions Codex. It passed the CodexStacks quality filter for skills (at least 100 stars, pushed in the last 90 days, not a fork or a list, and at least one SKILL.md with a name and description). OpenAI hasn't reviewed it, but it passed our Codex install check on Oct 28, 2026 (an install and load check, not a code review). From its files we found 119 skills. It's one of 311 listings in the Productivity category (category assigned by CodexStacks from the repo's topics and description).
Spellbook FAQ
How do I install Spellbook in Codex?
In Codex, type $skill-installer install the <skill> skill from https://github.com/majiayu000/spellbook. $skill-installer is the skill installer built into Codex (Codex skills docs). Or copy the skill folder (the one with SKILL.md) into ~/.agents/skills to use it in every project, or into .agents/skills in a repo to share it with that repo. Codex picks up new skills automatically.
Is Spellbook an official Codex skill?
No. Spellbook is a community repo on GitHub by majiayu000. It passed the CodexStacks quality filter, but OpenAI hasn't reviewed it, but it passed our Codex install check on Oct 28, 2026 (an install and load check, not a code review), so read the code before you install it.
What does Spellbook include?
From its manifest and repo files, Spellbook includes 119 skills: agent-qa-testing, agentsmd-optimize, agentsmd-scaffold, api-design, app-ui-design, app-user-story-qa….
Details
- Type
- Skill
- Category
- Productivity (assigned by us)
- Source
- Community
- Author
- majiayu000
- License
- MIT
- GitHub stars
- 288 (at last sync)
- Last push
- 2026-10-28
- GitHub topics
- ai-agent-skills, ai-agents, ai-coding-assistant, automation, claude, claude-code, claude-code-skills, code-review, cross-runtime, developer-tools, multi-agent, productivity
- Source
- https://github.com/majiayu000/spellbook
- Website
- https://majiayu000.github.io/spellbook/
- Listed via
- GitHub search: Codex skills (SKILL.md)
- Install check by CodexStacks
- Passed on Oct 28, 2026 with Codex CLI 0.163.0: Codex loaded its skills. proof · how we check
Something wrong or missing? Submit or improve this listing. Listings also refresh automatically every night.
For maintainers: badge and embeds
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Markdown
[](https://codexstacks.com/p/spellbook/)HTML
<a href="https://codexstacks.com/p/spellbook/"><img src="https://codexstacks.com/badge.svg" alt="Listed on CodexStacks" width="172" height="28"></a>Embed card (static HTML and inline CSS, no JavaScript). Preview:
<a href="https://codexstacks.com/p/spellbook/" style="display:block;max-width:380px;box-sizing:border-box;padding:14px 16px;border:1px solid #3a2c26;border-radius:12px;background:#0d0b0a;color:#f3ece6;font:14px/1.45 -apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;text-decoration:none"><span style="display:block;font-size:16px;font-weight:700;color:#f3ece6">Spellbook</span><span style="display:block;margin:2px 0 8px;font-size:12px;color:#b5a9a1">Community Codex skill · 119 skills</span><span style="display:block;margin:0 0 10px;color:#ddd3cc">Cross-runtime skills for Claude Code, Codex, and multi-agent workflows.</span><span style="font-size:12px;font-weight:600;color:#ffb347">View on CodexStacks →</span></a>Markdown summary
**[Spellbook on CodexStacks](https://codexstacks.com/p/spellbook/)**: Community Codex skill with 119 skills.More on badges, embeds and keeping your listing up to date: CodexStacks for plugin authors.
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