1,396 mods tagged openai that install into Codex, measured the same four ways as everything else here: what each costs in tokens on every session, what a security scan found and why, whether it is the original, and what changed.
Skill Codex
Build, improve, package, and review Codex skills from rough ideas, workflows, scripts, README/API/CLI docs, or existing skill folders. Use when the user wants to create a new Codex skill, convert a repeatable workflow into a reusable skill, scaffold SKILL.md plus references/scripts/assets, validate a skill, or prepare…
Skill Codex
Enable or disable tmux-bound disconnect recovery for the current Codex thread. Use only for the explicit invocations $reconnect on or $reconnect off inside a Codex CLI running in tmux.
MCP server Claude CodeCodexCursor +2
Scalattice CLI - session login, credits, fleet, Bracket coding harness, MCP. Runs locally from the scalattice-cli npm package.
caozhangni/codex-plugin-discovery
Skill Codex
Use when a user asks what Codex plugins are available or can be used, wants plugin recommendations for a task, asks to find/search/discover installable plugins, asks about the plugin marketplace, or asks whether a plugin can help with a task.
ClarentCinematics/Codex-Skills-for-Enterprise
Skill Codex
Produce Chief AI Officer operating pulses that blend portfolio governance, adoption reality checks, board-ready narratives, and playful signal framing. Use when Codex needs to brief a CAO, synthesize AI strategy updates, review initiative portfolios, assess shadow AI risk, or prepare executive AI operating rhythm…
Skill Claude CodeCodex
Use TypeCast to turn LLM output into validated, typed JVM values. Reach for it whenever code calls an LLM and then parses/validates the response by hand: extraction of case classes or Java records from text, classification/routing via sealed traits, constraint enforcement with retry, streaming partial JSON into a UI…
Skill Claude CodeCodex
Use when the user wants Codex to split work across multiple subagents, especially for implementation plus exploration or verification in parallel.
erida34/encoding-fix-codex-skill
Skill Codex
Enforce script-only text encoding fixes in any repository. Use when files contain mojibake, broken Cyrillic/UTF-8 text, or UTF-8 BOM issues, and require Codex to run the bundled scripts/fixmojibake.py instead of manual or ad-hoc encoding edits.
Skill Codex
Open an exact fork of the active Codex CLI chat in a new terminal tab while leaving the source chat open. Use when the user asks to fork, branch, duplicate, or continue the current Codex conversation in another terminal, including phrases such as “fork this into a new tab” or “open a parallel copy of this chat.”.
MCP server Claude CodeCodexCursor +2
Detect prompt injection, jailbreaks, and code injection in untrusted text before it reaches an LLM. Runs locally from the @safeprompt.dev/mcp npm package. Needs 3 environment variables to run.
Skill Claude CodeCodex
A guide to reducing token use in Codex conversations, where tokens are the units of text sent to and from the language model.
MCP server Claude CodeCodexCursor +2
LLM pricing oracle — model lookup, cost estimation, and comparison via LiteLLM. Runs locally from the tokencost-dev npm package.
abid-mahdi/whisper-telegram-mcp
MCP server Claude CodeCodexCursor +2
MCP server "whisper-telegram-mcp" as configured in abid-mahdi/whisper-telegram-mcp. Runs locally from the git+https://github.com/abid-mahdi/whisper-telegram-mcp.git Python package. Needs 2 environment variables to run.
Skill Codex
Repair and synchronize Codex CLI model catalogs for OpenAI-compatible third-party providers. Use when /model shows stale, missing, duplicated, or nested "All models" entries; reasoning efforts or context windows disagree with upstream; a provider exposes /models but Codex does not refresh it; or modelcatalogjson and…
Skill Codex
Review a Codex, Claude Code, or agent skill/plugin before public release. Use when the user wants to assess trigger quality, folder structure, documentation, validation gaps, GitHub readiness, or OSS release quality for an agent extension.
josephbartlett/windows-appshot-codex
Skill Claude CodeCodex
Use when the user invokes $windows-appshot or asks to create a Windows appshot bundle, including foreground-window screenshots, UI Automation text, metadata.json, prompt.md, or appshots generated by scripts/New-Appshot.ps1.
uchimanajet7/openai-responses-mcp
MCP server Claude CodeCodexCursor +2
Lightweight MCP server (Responses API core). OpenAI integration + websearch. Runs locally from the openai-responses-mcp npm package.
MCP server Claude CodeCodexCursor +2
MCP server for knowledge base functionality - Coming Soon. Runs locally from the mcp-knowledge-base npm package.
sid12super/MCP-Deep-Researcher
MCP server Claude CodeCodexCursor +2
MCP server "agenticdeepresearcher" as configured in sid12super/MCP-Deep-Researcher. Runs locally from the agentic_deep_researcher Python package.
aleslanger/OpenAI-image-mcp-server
MCP server Claude CodeCodexCursor +2
MCP server "openai-image-mcp" as configured in aleslanger/OpenAI-image-mcp-server. Runs locally from the openai-image-mcp npm package.
MCP server Claude CodeCodexCursor +2
Track LLM costs, set budget limits, get alerts. One command to install, one line to use. Runs locally from the @wimoron/llm-cost-guard npm package.
MCP server Claude CodeCodexCursor +2
One of 3 in .mcp.json
Gives the agent up-to-date documentation and code examples for libraries and frameworks, fetched on demand so answers are not stuck at the model's training cutoff. Runs locally from the @upstash/context7-mcp npm package.
MCP server Claude CodeCodexCursor +2
MCP server for generating images using OpenAI's DALL-E 3. Runs locally from the @lpenguin/openai-image-mcp npm package.
MCP server Claude CodeCodexCursor +2
OpenAI gpt-image (gpt-image-1 / gpt-image-2) MCP server with advanced image generation and editing capabilities. Runs locally from the @napolab/gpt-image-mcp npm package.
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: