SkillOpt skill for Codex
SkillOpt is a text-space optimizer that trains reusable natural-language skills for frozen LLM agents through trajectory-driven edits, validation-gated updates, and deployable best_skill.md artifacts.
How to install SkillOpt in Codex
In Codex, ask the built-in skill installer for it:
$skill-installer install the <skill> skill from https://github.com/microsoft/SkillOptType 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 (5)
openclaw— Reference-only OpenClaw adaptation of SkillOpt-Sleep. Use it to study or port the contributed DeepSeek wrapper, not as a ready-to-run installation.skillopt-sleep— Use when the user wants their Claude agent to self-improve from past usage, asks about a nightly/offline 'sleep' or 'dream' cycle, memory/skill consolidation, or says things like 'make my agent better the more I use it', 'review my past sessions', 'learn my…skillopt-sleep— Use when the user wants Codex to self-improve from past usage, asks about a nightly/offline 'sleep' or 'dream' cycle, wants Codex to review past sessions, learn preferences, consolidate memory/skills, run dry-run/run/adopt/status for SkillOpt-Sleep, or…skillopt-sleep— Use when the user wants Cursor to learn from recent local sessions, asks for an offline sleep or dream cycle, wants to consolidate recurring work into a Cursor skill, or requests SkillOpt-Sleep status, harvest, dry-run, run, scheduling, review, or adoption…skillopt-sleep— Use when the user wants the dsh agent to self-improve from past usage, asks about a nightly/offline 'sleep' or 'dream' cycle, skill/memory consolidation, or says things like 'make my agent better the more I use it', 'review my past sessions', 'learn my…
About this listing
SkillOpt is a community collection of agent skills on GitHub by microsoft: 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 27, 2026 (an install and load check, not a code review). From its files we found 5 skills. It's one of 441 listings in the Developer Tools category (category assigned by CodexStacks from the repo's topics and description). It also appears in best Codex plugins for deployment and hosting.
SkillOpt FAQ
How do I install SkillOpt in Codex?
In Codex, type $skill-installer install the <skill> skill from https://github.com/microsoft/SkillOpt. $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 SkillOpt an official Codex skill?
No. SkillOpt is a community repo on GitHub by microsoft. It passed the CodexStacks quality filter, but OpenAI hasn't reviewed it, but it passed our Codex install check on Oct 27, 2026 (an install and load check, not a code review), so read the code before you install it.
What does SkillOpt include?
From its manifest and repo files, SkillOpt includes 5 skills: openclaw, skillopt-sleep, skillopt-sleep, skillopt-sleep, skillopt-sleep.
Details
- Type
- Skill
- Category
- Developer Tools (assigned by us)
- Source
- Community
- Author
- microsoft
- License
- MIT
- GitHub stars
- 18,759 (at last sync)
- Last push
- 2026-10-29
- GitHub topics
- self-evolving-agents
- Source
- https://github.com/microsoft/SkillOpt
- Website
- https://aka.ms/skillopt
- Listed via
- GitHub search: Codex skills (SKILL.md)
- Install check by CodexStacks
- Passed on Oct 27, 2026 with Codex CLI 0.163.0: Codex loaded its skills. proof · how we check
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For maintainers: badge and embeds
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Markdown
[](https://codexstacks.com/p/skillopt/)HTML
<a href="https://codexstacks.com/p/skillopt/"><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/skillopt/" 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">SkillOpt</span><span style="display:block;margin:2px 0 8px;font-size:12px;color:#b5a9a1">Community Codex skill · 5 skills</span><span style="display:block;margin:0 0 10px;color:#ddd3cc">SkillOpt is a text-space optimizer that trains reusable natural-language skills for frozen LLM agents through…</span><span style="font-size:12px;font-weight:600;color:#ffb347">View on CodexStacks →</span></a>Markdown summary
**[SkillOpt on CodexStacks](https://codexstacks.com/p/skillopt/)**: Community Codex skill with 5 skills.More on badges, embeds and keeping your listing up to date: CodexStacks for plugin authors.
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