Agent capability

skill-creator

Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.

Compatible agent runtimes 19 files 225,474 bytes

Runtime provisioning

Provision this capability

The provisioning flow resolves the versioned manifest, verifies every SHA-256 digest, and applies the package atomically.

Shared Agent Skills

User scope: ~/.agents/skills/skill-creator

curl -fsSLo /tmp/mm-skills-install.sh __MM_RUNTIME_ORIGIN__/install.sh && bash /tmp/mm-skills-install.sh skill-creator --client agents --scope user --registry __MM_RUNTIME_ORIGIN__

Codex

User scope: ~/.agents/skills/skill-creator

curl -fsSLo /tmp/mm-skills-install.sh __MM_RUNTIME_ORIGIN__/install.sh && bash /tmp/mm-skills-install.sh skill-creator --client codex --scope user --registry __MM_RUNTIME_ORIGIN__

OpenCode

User scope: ~/.config/opencode/skills/skill-creator

curl -fsSLo /tmp/mm-skills-install.sh __MM_RUNTIME_ORIGIN__/install.sh && bash /tmp/mm-skills-install.sh skill-creator --client opencode --scope user --registry __MM_RUNTIME_ORIGIN__

Antigravity

User scope: ~/.gemini/config/skills/skill-creator

curl -fsSLo /tmp/mm-skills-install.sh __MM_RUNTIME_ORIGIN__/install.sh && bash /tmp/mm-skills-install.sh skill-creator --client antigravity --scope user --registry __MM_RUNTIME_ORIGIN__
Windows PowerShell
$installer = Join-Path $env:TEMP 'mm-skills-install.ps1'; Invoke-WebRequest '__MM_RUNTIME_ORIGIN__/install.ps1' -OutFile $installer; & $installer -Skill 'skill-creator' -Client 'agents' -Scope 'user' -Registry '__MM_RUNTIME_ORIGIN__'

Artifact integrity

Versioned package contents

Inspect manifest
PathBytesSHA-256
agents/analyzer.md 10,376 bf68f4cac5a56c67…
agents/comparator.md 7,287 fe1fc9787c495d86…
agents/grader.md 9,049 57134da0c1a4eea3…
assets/eval_review.html 7,058 ce477dcc74dc1c0d…
eval-viewer/generate_review.py 16,365 fc9d1b9243fe5ab6…
eval-viewer/viewer.html 44,998 a53213426ee11004…
LICENSE.txt 11,345 bc6b3af2f331cbc7…
references/schemas.md 12,061 8e8876180a8989b4…
scripts/__init__.py 0 e3b0c44298fc1c14…
scripts/aggregate_benchmark.py 14,386 123ef128ea5ccc01…
scripts/generate_report.py 12,847 13df7118a3c50c83…
scripts/improve_description.py 11,116 87d864570220b699…
scripts/package_skill.py 4,234 1a33059b0db1ef73…
scripts/quick_validate.py 3,972 67cf570340201393…
scripts/run_eval.py 11,464 43e3b8f80dbf69c3…
scripts/run_loop.py 13,605 7bd6f67420316852…
scripts/utils.py 1,661 3af8ae62c40c73ab…
SKILL.md 33,168 dcd4803e61e913e6…
SOURCE.md 482 ec12ec1d33309587…