ComposioHQ/awesome-codex-skills is a community-curated catalog of runtime-loadable Codex skills released April 26, 2026 — the day after OpenAI confirmed there is no separate GPT-5.5-Codex model. The directory is organized into five categories: Development & Code Tools (gh-fix-ci, pr-review-ci-fix, security-threat-model), Productivity & Collaboration (meeting-notes-and-actions, notion-research-documentation), Communication & Writing (stop-slop), Data & Analysis (spreadsheet-formula-helper), and Meta & Utilities (mcp-builder, cli-creator). Each skill is a SKILL.md instruction bundle that loads at runtime and gives Codex repeatable, version-controlled workflows. Composio markets the collection as 'practical Codex skills for automating workflows across the Codex CLI and API' and uses it as a front door to its 1,000+ pre-built tool integrations. Activity at launch: 2.1K stars, 161 forks, 20 open PRs in the first 24 hours, NEW ENTRANT on GitHub trending.
ComposioHQ/awesome-codex-skills is a curated catalog of practical Codex skills — instruction bundles that load into OpenAI Codex at runtime and give the agent repeatable, version-controlled workflows. The repo entered GitHub trending on April 26, 2026 as a NEW ENTRANT, exactly 24 hours after OpenAI confirmed via Romain Huet that there is no separate GPT-5.5-Codex model line and the Codex CLI now runs on the unified GPT-5.5 frontier model.
The directory is organized into five categories: Development & Code Tools (gh-fix-ci, pr-review-ci-fix, security-threat-model), Productivity & Collaboration (meeting-notes-and-actions, notion-research-documentation), Communication & Writing (stop-slop), Data & Analysis (spreadsheet-formula-helper), and Meta & Utilities (mcp-builder, cli-creator, frontend-skill). Each skill is a SKILL.md file with metadata + step-by-step instructions, runnable directly via the Codex CLI.
OpenAI shipped the mechanism for runtime-loaded skills in Codex but did not ship a first-party curation directory. ComposioHQ staked the slot before OpenAI built one — a parallel to mattpocock/skills on the Claude Code side. The repo also functions as a front door to Composio’s 1,000+ pre-built tool integrations, giving every skill a pathway to real-world side effects (Slack, GitHub, Notion, browser flows).
Useful for Codex teams that want a baseline of high-quality workflow skills without writing them from scratch — CI auto-fix loops, PR review pipelines, security threat modeling, MCP server scaffolding, and cross-app automation. Pairs naturally with Composio’s tool platform when skills need to take real actions across email, calendars, ticketing, or external APIs.
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