codex-bridge

vskill

The package manager for AI skills.
Author. Eval. Publish. Install — across 53 agent platforms.

Download Skill Studio:

All releases: github.com/anton-abyzov/vskill/releases

# Browser studio — zero install
npx vskill@latest studio        # open the local IDE for AI skills
npx vskill@latest install remotion-best-practices

Native Mac, Windows, and Linux desktop apps available at GitHub Releases — 1.5 s cold launch, no telemetry. macOS Apple Silicon is signed by Developer ID Application: EasyChamp, Inc. and notarized + stapled by Apple — no Gatekeeper warning.

The desktop app wraps the same studio runtime as npx vskill studio in a Tauri 2 shell: native menu bar, global ⌘K find-skill palette, ⌘, Preferences with General / Updates / Privacy / Advanced tabs, settings persisted to ~/.vskill/settings.json (atomic, 0600 perms), and signed auto-update via tauri-plugin-updater against minisign-signed manifests.

Why vskill

36.82% of AI skills have security flaws (Snyk ToxicSkills). And the ones that aren't malicious often don't even improve the model — they just feel like they should.

vskill is built around three problems:

• Trust — every install runs a 3-tier scan (52 patterns → blocklist → LLM intent). No --skip-scan.
• Proof — Skill Studio runs A/B evals so you can show a skill makes a model better, not assume it.
• Reach — one skill, 53 agents (Claude Code, Cursor, Copilot, Codex, Windsurf, Zed, Gemini CLI, Ollama, …).

Skill Studio — the local IDE for skills

npx vskill@latest studio

A localhost workbench opens at a deterministic per-project port. You can:

• Author new skills with an AI-assisted generator (Anthropic skill-creator engine or vskill native — first-class peers, you pick).
• Edit SKILL.md live with a Linear/Raycast-grade UI.
• Run benchmarks with SSE-streamed pass/fail across Claude, GPT, Llama, Gemini, local Ollama / LM Studio.
• A/B compare with vs. without your skill — blind LLM judge ranks outputs as EFFECTIVE / MARGINAL / INEFFECTIVE / DEGRADING.
• Cross-model sweep the same skill across providers (Anthropic Batch API supported — 50% cheaper).
• Find skills from the verified-skill.com registry with a ⌘⇧K palette, install with consent + provenance.
• Publish with one click — git push from the UI, then opens the submit form on verified-skill.com pre-filled.