Installing skill-validator

Installation methods

Homebrew (recommended for macOS)

bash

brew tap agent-ecosystem/homebrew-tap
brew install skill-validator

From source (requires Go 1.25.5+)

bash

go install github.com/agent-ecosystem/skill-validator/cmd/skill-validator@latest

Ensure $GOPATH/bin (usually ~/go/bin) is on your PATH:

bash

export PATH="$PATH:$(go env GOPATH)/bin"

From a pre-built binary

bash

cp /path/to/skill-validator /usr/local/bin/ && chmod +x /usr/local/bin/skill-validator

Verify installation

bash

skill-validator --version

Prerequisites for LLM scoring

LLM scoring uses the claude-cli provider, which shells out to the locally installed claude binary. No API keys are needed — it uses the CLI's existing authentication.

Claude Code CLI (claude --version) — install with curl -fsSL https://claude.ai/install.sh | bash on macOS, or follow the Claude Code quickstart guide for other platforms
Authenticated session — run claude interactively to complete login if not yet authenticated