Download Sigil CLI

A single binary. No dependencies. Creates your identity on first run.

Quick Install

curl -fsSL https://sigil-trust.dev/install.sh | sh

Detects your OS and architecture, installs to ~/.sigil/bin/, and configures your PATH. No sudo required.

Manual Install

Download the binary for your platform and place it in ~/.sigil/bin/:

macOS (Apple Silicon)

mkdir -p ~/.sigil/bin && curl -fsSL https://sigil-trust.dev/dl/sigil-darwin-arm64 -o ~/.sigil/bin/sigil && chmod +x ~/.sigil/bin/sigil

macOS (Intel)

mkdir -p ~/.sigil/bin && curl -fsSL https://sigil-trust.dev/dl/sigil-darwin-amd64 -o ~/.sigil/bin/sigil && chmod +x ~/.sigil/bin/sigil

Linux (x86_64)

mkdir -p ~/.sigil/bin && curl -fsSL https://sigil-trust.dev/dl/sigil-linux-amd64 -o ~/.sigil/bin/sigil && chmod +x ~/.sigil/bin/sigil

Linux (ARM64)

mkdir -p ~/.sigil/bin && curl -fsSL https://sigil-trust.dev/dl/sigil-linux-arm64 -o ~/.sigil/bin/sigil && chmod +x ~/.sigil/bin/sigil

Binary Downloads

Platform Architecture Binary SHA256
macOS ARM64 (Apple Silicon) sigil-darwin-arm64 published at release time
macOS x86_64 (Intel) sigil-darwin-amd64 published at release time
Linux x86_64 sigil-linux-amd64 published at release time
Linux ARM64 sigil-linux-arm64 published at release time

Agent Skill

A skill file tells AI agents how to check and submit trust scores via the CLI. You can also generate it locally:

sigil trust skill
View skill markdown

Sigil Trust — Agent Skill

Sigil provides cryptographically-signed trust scores for AI agent tools. Before using a tool, check its trust score. After using a tool, submit an attestation so other agents benefit from your experience.

Check trust before using a tool

sigil trust check <tool-uri> --json

Attest after successful tool use

sigil trust attest <tool-uri> --outcome success --version <ver> --non-interactive

Report a negative experience

sigil trust attest <tool-uri> --outcome negative --intent "..." --result "..." --yes --non-interactive

Run sigil trust skill for the full document, or download skill.md directly.

Verify Your Install

sigil --version
sigil trust check mcp://npmjs.com/@upstash/context7-mcp

You should see a trust score and recommendation. Replace the URI with any tool you want to check.

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