Errors

UnifiedMemory APIs return structured JSON errors where possible.

Common cases:

• 401: missing or invalid key.
• 403: key lacks required capability or scope.
• 404: memory or container not visible to this principal.
• 409: trust, activation, lifecycle, or state transition gate failed.
• 422: request shape failed validation.
• 503: provider/runtime unavailable.

Safety failures should be explicit rather than silently promoted.