CantonGuard — Development skill for Claude Code

Canton Guard by SCAS

A security agent for finding potential vulnerabilities in Daml.

Built for:

• Daml developers who want a security check before shipping workflow changes
• Canton teams reviewing authorization, privacy, and contract-key logic
• Security researchers looking for fast, Daml-native audit hypotheses before manual review

Installation

Open claude/codex and paste this prompt ```Install this skill: https://github.com/SCAuditStudio/CantonGuard```

To use the skill in github copilot, clone the repo to the `.github/copilot-skills` folder.

Usage

Use $canton-guard-by-scas to review the codebase

Use $canton-guard-by-scas on specified .daml files

Use $canton-guard-by-scas --include-tests when workflow intent lives in Daml Script or test modules

Use ./github/copilot-skills/canton-guard-by-scas to review the codebase

Tips

• Target hot modules. Point the skill at the contracts or workflows you are actively changing instead of scanning a large repo blindly.
• Run more than once. Different passes often surface different authorization and privacy issues.
• Include tests when needed. In Daml, test and script modules often reveal the intended party flow, deadline logic, and failure cases.

Contact

If you are looking to explore strategies for securing your project, reach out for a chat on [scauditstudio.com](https://scauditstudio.com/contact).