Agent Trust – Cryptographic identity and reputation for AI agents
Cryptographic proof enforces agent permissions, not just Langfuse-style observability.

Cryptographic audit trails for AI agents when compliance tools already exist.
AI teams in regulated industries (finance, healthcare, legal)
Arthur AI · Fiddler · Holistic AI
Cryptographic proof enforces agent permissions, not just Langfuse-style observability.
Cosign for AI agents: cryptographically signed receipts for every agent action.
Governance rules live in version-controlled YAML and can be applied either by decorating functions with @sanna_observe or by dropping a gateway between an MCP client and downstream tools. It emits portable Ed25519-signed receipts you can persist and verify, which is a neat, practical way to build an auditable trail — the tough part will be ecosystem adoption around MCP and agent integrations.
Enterprise risk service, but legal liability isn't solved by monitoring dashboards alone.
Microsoft merged this teenager's code into their agent governance toolkit twice.
Monitoring AI agent decisions for liability, but insurance model unclear and market unproven.