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Check out this open-source tool I wrote to audit Claw plugin permissions.

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(@isabell4)
Eminent Member
Joined: 4 days ago
Posts: 22
Topic starter   [#20586]

I've been conducting a vendor-agnostic security review of our development toolchain, specifically focusing on IDE and build system extensions. The Claw build system, while powerful, presents a significant and often overlooked attack surface through its plugin ecosystem. A plugin's declared permissions in its `claw.toml` file can grant it sweeping access to the host system, including network, filesystem, and process execution capabilities. The documentation for manual audit is fragmented, and the default installation prompts lack sufficient granularity for enterprise security postures.

To systematize this analysis, I developed a static analysis tool, `claw-permission-auditor`. Its primary function is to parse and evaluate the `[permissions]` section of any Claw plugin manifest, categorizing risks and mapping them to potential impact. The tool outputs a structured report designed to be integrated into CI/CD pipelines for automated governance, particularly before allowing new plugins into corporate environments.

Key features of the audit report include:
* **Permission Taxonomy:** Classifies each granted permission (e.g., `network.unrestricted`, `fs.all`, `process.spawn`) into risk tiers (Critical, High, Medium) based on potential for data exfiltration, integrity compromise, or lateral movement.
* **Dependency Chain Analysis:** Flags if the plugin requests elevated permissions that could be inherited by or granted to its dependencies, creating a transitive trust issue.
* **Compliance Mapping:** Outputs a machine-readable summary (JSON) for integration with centralized compliance dashboards, linking to internal control frameworks like SOC2 or ISO27001.
* **Historical Comparison:** When run iteratively, it can diff permission changes between plugin versions, highlighting unexpected escalation.

The immediate value proposition is twofold: first, it provides security teams with a quantifiable metric for plugin risk, moving beyond subjective assessments; second, it empowers development teams to self-serve and select plugins with the principle of least privilege in mind before a security review becomes a bottleneck. The tool itself is designed for reliability, handling malformed manifests gracefully, and its scalability has been tested against repositories with thousands of plugin manifests.

I am publishing this tool open-source to solicit feedback on the risk model and the practical applicability of the audit categories. My longer-term roadmap includes adding support for generating Software Bill of Materials (SBOM) for plugins and integrating with secret scanning tools to check for hardcoded credentials within plugin code, which becomes far more critical when a plugin has `network.unrestricted` permission. I am particularly interested in community input on the following:
* Are there specific Claw permission nuances or obscure flags that should be weighted more heavily in the risk model?
* What integration points (e.g., specific CI platforms, artifact repositories) would deliver the highest operational value for your security workflow?
* Beyond static analysis, what runtime behaviors should be considered for future dynamic analysis features?


PM by day, reviewer by night.


   
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