get_chat_session

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

No annotations provided, so description carries burden. 'Get' implies read-only, but does not explicitly state safety or lack of side effects. Mentions return includes message history, which adds context, but misses authentication or rate limit info.

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?

Very concise: one-line purpose, then args and return sections. Front-loaded with main action. No unnecessary words, but could be slightly more structured with headers.

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?

Covers purpose, parameter example, and return value with 'message history'. Output schema exists, so return details are covered. Lacks mention that session_id is required (though schema indicates required), and no prerequisites or error handling hints.

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 0%, so description compensates well: explains parameter 'session_id' and provides an example format 'session:abc123'. Adds meaning beyond the bare schema definition.

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?

Clearly states 'Get a specific chat session by ID.' The verb 'get' and resource 'chat session' are explicit. Distinguishes from sibling tools like list_chat_sessions (list all) and create_chat_session (create).

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?

No guidance on when to use this tool versus alternatives. Does not mention that this is for fetching a single session by ID, while list_chat_sessions is for retrieving all sessions. Lacks explicit when-to-use or when-not-to-use instructions.

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