Tools

Notion's plugin in OpenAI's official Codex marketplace: uses the Notion connector and hosted MCP to search and update workspace pages, with skills for spec-to-implementation plans, research write-ups, meeting prep and knowledge capture. Codex only; needs Notion authorization.

OpenAI's official Codex plugin that uses the Gmail connector to search mail, read threads, draft replies and tidy your inbox. The plugin bundles no extra skills; authorize your Google account in Codex.

Prepares meetings using past notes, requirements and decisions in Notion: picks a template by meeting type, drafts the agenda and pre-reads, and adds research. From OpenAI's official plugin repo (developer: Notion); needs the Notion MCP.

OpenAI's official Codex plugin for Microsoft Teams: summarizes chats and channel messages, pulls out action items, and drafts channel replies or meeting follow-ups. Requires signing in to Codex with ChatGPT and authorizing a Microsoft account.

Remotion's official Codex plugin (OpenAI marketplace) for making videos in React code: 12 skills covering project setup, animation and effects, captions, maps, preview and rendering. Free for individuals, nonprofits and companies up to 3 people; bigger companies need a license.

Linear's official plugin in OpenAI's Codex marketplace: search, create and update Linear issues, projects and initiatives from Codex, and draft PRDs, status updates and customer request summaries. Codex only; needs a Linear account and authorization.

OpenAI's official Codex plugin for adding the OpenAI Ads measurement pixel and optional Conversions API (CAPI) to a website, with local validation scripts plus key and deduplication guidance. Needs the site's source and an OpenAI Ads account; review manually before launch.

Creates, edits and validates reproducible Python and SQL Jupyter notebooks: organizes cells as reports or tutorials, checks conclusions against actual output and reruns top to bottom before handoff. Maintained by OpenAI in the Data Analytics plugin of openai/plugins.

OpenAI's official Codex plugin that makes Google Drive the single entry point to search, organize, share and export files, handing Docs, Sheets, Slides and comments to dedicated sub-skills for summaries, edits and new files. Authorize your Google account in Codex.

OpenAI's official Codex plugin for Google Calendar: summarize today's schedule, compare availability across people, prep for meetings, and create, edit or delete events. Requires signing in to Codex with ChatGPT and authorizing your Google account.

Higgsfield's official Codex plugin: uses its remote MCP to generate images and video from text or photos, like product-shot video ads or animated stills, with built-in flows for faceless narration, voiceover and burned-in captions. Needs a Higgsfield account; billed in credits.

OpenAI's official Codex plugin for Outlook Calendar: summarizes your day, compares availability across people, preps meetings, explains busy and tentative states, and creates, reschedules or cancels meetings. Requires Codex with a ChatGPT sign-in and a Microsoft account.

OpenAI's official Codex plugin that starts from a brief, product shots or references to generate marketing concepts, mood boards, product scenes, ad directions and social assets, compared and iterated on a reviewable board. Works with Figma and Canva.

Build with OpenAI best practices inside Codex: call the OpenAI API, build and deploy agents with the Agents SDK, create ChatGPT apps and prepare submission materials, and create API keys directly. Maintained by OpenAI; Codex only.

OpenAI's official Codex plugin for building frontend apps and generating visual assets, testing and debugging in a browser, plus best-practice skills for React, shadcn/ui, Stripe payments and Supabase databases. Codex only.

Security scans for a whole repo or for changes like PRs and commits, with threat modeling, vulnerability triage, fixes and re-verification; reports export to JSON, SARIF and more. OpenAI's official Codex plugin; requires Codex Security access.

Cuts long videos like podcasts, webinars, livestreams and interviews into captioned vertical shorts, with optional dubbing and publishing to TikTok, YouTube and more. Hosted version needs an API key (free tier is watermarked and time-limited), or self-host with Docker and your own keys.

ClickUp's official plugin in OpenAI's Codex marketplace: search your whole ClickUp workspace in natural language, find, create, update and manage tasks, and check whether a project or sprint is at risk of slipping. Codex only; needs a ClickUp account and authorization.

Turns articles, reports, papers or notes into a .pptx of full-slide images with speaker notes, in 12 styles such as lectures and thesis defenses; slide text is not editable. Needs Python 3; uses Codex's built-in image generation, or an OpenAI-compatible image API key in Claude Code.

Scrapes web pages into Markdown or structured data, with full-site crawling, sitemaps, web search and interaction with dynamic pages. Maintained by Firecrawl; the cloud needs an API key (self-hosting is possible), and the keyless hosted endpoint only offers scrape, search and parse.

Anthropic's reference implementation for finding and fixing vulnerabilities: Claude Code skills for threat modeling, static scanning, triage and patching, plus an autonomous recon-to-patch pipeline (C/C++ memory bugs by default; needs Docker and gVisor). No longer maintained.

Command-line email client supporting IMAP, SMTP, JMAP, Gmail and Microsoft Graph, with multiple accounts and --json output, so agents can check, search, compose and send mail. A first-run wizard auto-detects your mailbox settings.

Open-source LLM evaluation platform: one opencompass command picks the model and datasets and runs the evaluation across hundreds of benchmarks. Works with local Hugging Face models and API models, with vLLM and LMDeploy for faster inference.

Tw93's lean pack of engineering-habit skills: /think to pressure-test plans, /hunt for root causes, /check to review diffs, /ui for frontend interfaces, /write to polish Chinese and English prose, and more (8 skills). Works with both Claude Code and Codex.