get_session_details

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

No annotations are provided, so the description carries full responsibility for behavior. It only lists content categories and does not disclose potential pagination, rate limits, error conditions, or whether data is limited to certain session types. This is insufficient for an unannotated tool.

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 a single, front-loaded sentence that packs the essential purpose without any fluff. Every word contributes to understanding what the tool does.

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?

With no output schema, the description partially compensates by naming events, props, and device/geo metadata. However, it lacks details on response structure, ordering, error handling, or how the timeline is organized, leaving some ambiguity about the exact return shape.

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?

The input schema already provides 100% parameter coverage, so the baseline is 3. The tool description adds little beyond restating 'for a session id' which aligns with sessionId; it does not clarify appId or buildMode semantics beyond what the schema already explains.

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 clearly states the tool returns session timeline details (events, props, device/geo metadata) for a specific session ID. It distinguishes this from sibling list/aggregate tools like get_live_sessions or get_historical_sessions by indicating a single-session lookup.

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?

The description implies usage when you need detailed timeline data for a specific session ID, but it does not explicitly state when to use this tool over alternatives or mention any exclusions. It relies on the user inferring context from the purpose.

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