microsoft/SkillOpt repo
Text-space optimizer from Microsoft Research that trains reusable natural-language skills for frozen LLM agents through trajectory-driven edits and validation-gated updates. Produces deployable best_skill.md artifacts. Ships SkillOpt-Sleep in v0.2.0: a nightly self-evolution engine that harvests real agent session data, mines improvement opportunities, replays and consolidates them behind a held-out validation gate. Claude Code integration shell is in the repo.
What it does for you: AXION updates skills manually. SkillOpt replaces that loop with a research-backed automated pipeline: SkillOpt-Sleep reads real Claude Code session trajectories, identifies skill weaknesses, proposes edits, validates them against held-out tests, and writes an improved best_skill.md. The alirezarezvani/claude-skills collection (rank 2) already vendors a SkillOpt-Sleep integration, which is the clearest community signal that it is production-grade. This is the first time this repo has appeared in the registry.
In practice: 16,100 GitHub stars and 1,500 forks as of 2026-08-19. Microsoft Research blog feature on 2026-07-24 with coverage from VentureBeat, Synced, and The Decoder. The community validation comes from the alirezarezvani/claude-skills pack (24,600 stars) having already vendored the SkillOpt-Sleep shell.
For: Both runtimes. Python package (pip install skillopt). Ships integration shells for Claude Code, Codex, Copilot, and Devin in the repo. SKILL.md artifacts are format-agnostic and run in Hermes or any skill-compatible harness.
Verdict: build now. 32 total. pip install skillopt and the Claude Code integration shell in the repo makes this a same-day install. The nightly self-evolution loop directly addresses the AXION skill-quality maintenance problem. No equivalent validation-gated, trajectory-driven skill trainer exists in the registry.
Build #1 microsoft/SkillOpt: use the ai-implementation-build-intake skill to build this safely. Source: https://github.com/microsoft/SkillOpt. Save canonical skill/agent under AXION\Skills and AXION\Agents.
Source · 16,100 stars, 1,500 forks as of 2026-08-19. v0.2.0 released 2026-07-02 on PyPI. Microsoft Research blog post 2026-07-24. VentureBeat and The Decoder coverage same week. MIT license.