Auth Save Session

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already indicate readOnlyHint=false, idempotentHint=false, and destructiveHint=false. The description adds that the operation 'may create or update Monarch data,' which clarifies the mutation side effect beyond the raw annotation values. However, it does not describe what happens to existing session data, how conflicts are resolved, or whether any authentication state is replaced.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is very short, with no fluff, and front-loads the primary action. It loses a point because 'This may create or update Monarch data' is vague and could be more informative without adding length.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the presence of sibling auth tools, a nested required session object, and no output schema, the description is too thin to fully guide an agent. It does not explain the relationship to authentication flow, how to construct the session, what fields are necessary, or what the result of a successful save looks like.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 67%, since fields and output_mode have descriptions but the session object is a bare $ref with no top-level description. The description does not explain that session.token is required, what email or token_expiration represent, or how these values are stored. This leaves the most important parameter, session, largely unexplained.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a clear action ('Save session') and resource ('session'), and adds that it 'may create or update Monarch data,' which is more specific than just repeating the tool name. However, it does not distinguish this tool from the closely related sibling auth_create_session beyond the word 'save,' and it leaves the operational purpose vague.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no guidance on when to use this tool versus auth_create_session, auth_load_session, or auth_login. The sentence 'Save session' implies the action but does not explain the context in which saving a session is appropriate or what alternatives exist.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.