Everything for Codex

Skills, prompts, AGENTS.md files and MCP servers that Codex reads. Skills are shared with Claude Code; the rest is Codex-native. 281,573 indexed, measured the same four ways as everything else here.

profile

193

ccusage/ccusage

Skill Codex

Profiles ccusage performance. Use when a CLI command is slow, when checking that an optimization actually helped, when comparing a branch against main, or when reading a captured CPU profile.

not rated 19k +55 yesterday A SkillSpector: pass 38 tokens

huggingface/sentence-transformers

Skill Claude CodeCodex ✓ vendor

Train or fine-tune sentence-transformers models across SentenceTransformer (bi-encoder, dense or static embedding model for retrieval, similarity, clustering, classification, paraphrase mining, dedup, multimodal), CrossEncoder (reranker, pair scoring for two-stage retrieval / pair classification), SparseEncoder…

not rated 19k +16 yesterday A Snyk: passSkillSpector: pass 146 tokens original Apache-2.0

compiler-explorer

195

compiler-explorer/compiler-explorer

MCP server Claude CodeCodexCursor +2

Compile code with thousands of compilers, inspect the assembly, and share godbolt.org links. Remote server at godbolt.org.

not rated 19k +15 yesterday A tokens not measured original BSD-2-Clause

openshell-sandbox

196

anthropics/claude-quickstarts

Skill Claude CodeCodex ✓ vendor

Set up NVIDIA OpenShell as the self-hosted sandbox for Claude Managed Agents, step by step. Covers the host check, installing OpenShell, creating the agent and environment, running a first session, confirming the policy held, and changing policy.yaml for your own agent. Use when someone asks to set up, run, adapt, or…

not rated 19k +51 changed 14d ago A 87 tokens original MIT

xerj-code

197

xerj-org/xerj

Skill Claude CodeCodex needs its repo

Reference-coding with XERJ. Clone the libraries that already solved your problem, index them locally, and retrieve the exact implementation before writing code — so the agent reads passages instead of re-deriving algorithms across retry loops. Use when starting a task in an unfamiliar API, porting an algorithm, or…

not rated 19k +1.1k changed 13d ago A SkillSpector: warn 78 tokens original Apache-2.0

core

198

vercel-labs/json-render

Skill Claude CodeCodex ✓ vendor

Core package for defining schemas, catalogs, and AI prompt generation for json-render. Use when working with @json-render/core, defining schemas, creating catalogs, or building JSON specs for UI/video generation.

not rated 19k +63 changed 13d ago A Socket: passSnyk: passSkillSpector: pass 42 tokens original Apache-2.0

presentation

199

iii-hq/iii

Skill Claude CodeCodex

Turn a tech-spec directory into an interactive, marketing-grade web presentation — built so engineers understand the design, the reader is convinced of the why, and the result is shareable in public. Use when someone wants a spec turned into a deck.

not rated 19k +50 today A Socket: warnSnyk: passSkillSpector: pass 51 tokens

skillopt-sleep

200

microsoft/SkillOpt

Skill Claude CodeCodex ✓ vendor

Reference-only OpenClaw adaptation of SkillOpt-Sleep. Use it to study or port the contributed DeepSeek wrapper, not as a ready-to-run installation.

not rated 19k +122 yesterday A SkillSpector: pass 37 tokens original MIT

gpui-component

201

longbridge/gpui-component

Skill Claude CodeCodex

How to use the gpui-component UI library in GPUI applications, and the normative Design and Coding Guides that govern it. Use when building UIs with gpui-component components (Button, Input, Select, Dialog, Tabs, Sidebar, List, Table, etc.), setting up the library, handling component state or theming, finding the…

not rated 19k 6d ago A SkillSpector: pass 112 tokens

langbot-app/LangBot

Skill Claude CodeCodex

Build, refactor, and test LangBot platform adapters for the Event-Based Agents architecture. Use when adding or migrating Telegram, Discord, or other messaging platform adapters to the EBA adapter layout, validating unified event/message conversion, writing live adapter probes, or using standalone plugin runtime plus…

not rated 19k +107 changed yesterday A Snyk: warnSkillSpector: warn 73 tokens original Apache-2.0

convoy

203

gastownhall/gastown

Skill Claude CodeCodex needs its repo

The definitive guide for working with gastown's convoy system -- batch work tracking, event-driven feeding, stage-launch workflow, and dispatch safety guards. Use when writing convoy code, debugging convoy behavior, adding convoy features, testing convoy changes, or answering questions about how convoys work. Triggers…

not rated 19k +64 9d ago A Snyk: passSkillSpector: pass 114 tokens original MIT

stop-slop

204

hardikpandya/stop-slop

Skill Claude CodeCodex

Remove AI writing patterns from prose. Use when drafting, editing, or reviewing text to eliminate predictable AI tells.

not rated 19k +155 7mo ago A 26 tokens original MIT

cli-commands

205

windmill-labs/windmill

Skill Claude CodeCodex

MUST use when using the CLI, including debugging job failures and inspecting run history via wmill job.

not rated 18k +67 changed 9d ago A SkillSpector: warn 26 tokens

book-sft-pipeline

206

muratcankoylan/Agent-Skills-for-Context-Engineering

Skill Claude CodeCodex

This skill should be used for book-to-SFT pipelines: ePub extraction, literary segmentation, author-voice dataset construction, style-transfer training, LoRA workflows, and model evaluation for voice replication.

not rated 18k +47 25d ago A SkillSpector: pass 46 tokens original MIT

clip-hand-skill

207

RightNow-AI/openfang

Skill Claude CodeCodex

Expert knowledge for AI video clipping — yt-dlp downloading, whisper transcription, SRT generation, and ffmpeg processing.

not rated 18k +5 4mo ago A SkillSpector: warn 28 tokens original Apache-2.0

ocx

208

lidge-jun/opencodex

Skill Claude CodeCodex

Operate opencodex (ocx): discover CLI tasks offline, inspect local configuration, and manage a running proxy’s account pool, providers, models, routing, usage report, and management API. Use for proxy operation rather than editing the opencodex codebase.

not rated 18k +113 changed 1mo ago A SkillSpector: pass 59 tokens original MIT

rowboat-spaces

209

rowboatlabs/rowboat

Skill Claude CodeCodex

How to work as a member of Rowboat Spaces, the team chat where people and agents work together. Load it once per session, before acting on any request that reaches you from Rowboat; it covers your setup, mentions and hand-offs, the tools, and files.

not rated 18k +29 changed 2d ago A 60 tokens original Apache-2.0

enrich-context

210

Canner/WrenAI

Skill Claude CodeCodex

Augment a Wren project with business context that DB schema cannot carry — enum value meanings, units (USD vs cents, ms vs sec), NULL semantics, magic sentinels (-1 = unknown), soft-delete default filters, business synonyms, time-grain / TZ conventions, cross-system identifiers, currency rules, canonical-table…

not rated 18k +60 2d ago A SkillSpector: pass 347 tokens

lark-apps

211

larksuite/cli

Skill Claude CodeCodex

A toolkit for creating, developing, hosting, and publishing applications in Feishu’s Miaoda (Spark) platform, either locally or through cloud-based generation. It also covers page designs, integrations, monitoring, and access settings.

not rated 18k +85 changed 2d ago A Socket: warnSnyk: passSkillSpector: pass 364 tokens original MIT

zhihu-search

212

itwanger/toBeBetterJavaer

Skill Claude CodeCodex

A search skill for finding content on Zhihu, a Chinese question-and-answer and article platform, through its search API.

not rated 18k +21 2d ago A SkillSpector: pass 103 tokens

openwiki

213

langchain-ai/openwiki

Skill Codex ✓ vendor

Search and read an existing repository OpenWiki when requested or needed to resolve a concrete architecture or dependency uncertainty, or initialize and update one through the resumable page-job lifecycle.

not rated 18k +125 changed yesterday A Snyk: passSkillSpector: pass 37 tokens original MIT

live-tutorial

214

leon-ai/leon

Skill Claude CodeCodex

Create an annotated MP4 tutorial from a workflow demonstrated in the owner's actual application. Use when asked for a tutorial video, not merely to watch an action live.

not rated 18k +19 changed 14d ago A SkillSpector: pass 36 tokens original MIT

memori-mcp-usage

215

MemoriLabs/Memori

Skill Claude CodeCodex

Use when an MCP-connected agent should use Memori tools for targeted recall, summaries, post-compaction briefs, durable memory augmentation, quota checks, signup, feedback, preferences, prior context, or cross-session continuity.

not rated 17k +151 1mo ago A SkillSpector: warn 50 tokens

architecture-decision-record/architecture-decision-record

Skill Claude CodeCodex

Use when working ON the joelparkerhenderson/architecture-decision-record repository itself (this repo) — adding or editing a decision-record template, example, tool/guardrail link, or translation; reviewing a contributor's PR against it; or keeping README.md and locales/en-001/ in sync. Not for writing an ADR for some…

not rated 17k +30 changed 29d ago A 92 tokens

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: