Action class

An action class is the type field on an action. It’s the key AtlaSent uses to match against the policy’s rule set.

{
  "actor":  { "id": "agent-001", "type": "ai_agent" },
  "action": { "id": "act-7f3c", "type": "healthcare.record.amend" },
  "target": { "id": "patient-42", "type": "ehr_record", "environment": "production" }
}

The action class in this request is healthcare.record.amend.

Naming convention

Lowercase, dot-separated segments: <domain>.<verb> or <domain>.<object>.<verb>. The v1 API validates action_type against ^[a-z][a-z0-9_]*(\.[a-z][a-z0-9_]*)+$, so at least one dot is required and colons are rejected. Where one exists, use the canonical action slug. Examples:

Class	Meaning
`healthcare.record.amend`	Amend (not overwrite) a healthcare record
`data.modify`	Create or modify records in a regulated system
`data.export`	Export data out of the regulated system
`production.deploy`	Deploy a change to production
`trial.unblinding.execute`	Unblind a clinical trial
`agent.tool.invoke`	Invoke a tool on behalf of an AI agent

Keep classes coarse (10s, not 1000s). Policy rules are what make them fine-grained — the class only needs to distinguish actions that plausibly have different decisions.

`target.environment`

production, staging, dev. Policies often have stricter rules for production (for example, escalate in prod, allow in staging).

Not the same as “tool name”

The action class is about regulatory meaning, not framework plumbing. healthcare.record.amend is the class whether the agent uses LangChain, LlamaIndex, or a raw HTTP call. The tool name is implementation; the class is what the FDA or EMA cares about.

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Naming convention

`target.environment`

Not the same as “tool name”

​Naming convention

​target.environment

​Not the same as “tool name”

Naming convention

`target.environment`

Not the same as “tool name”