Close debug session

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

No annotations are provided, so the description must carry the behavioral disclosure burden. It discloses a key trait: it only closes a local diagnostic session record and does not alter runtime state or configuration. However, it lacks details about what 'close' means in terms of side effects, reversibility, or requirements for session existence, leaving gaps.

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, succinct sentence that immediately states the action and its non-effect on runtime. It has no fluff or unnecessary clauses.

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?

The description covers the core purpose and key restriction for this simple tool, but it does not explain the operational consequences of closing a session (e.g., whether notes can still be appended, if it's reversible, or if a session must exist). Given the absence of an output schema, slightly more context would round out the tool's behavior.

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 description does not mention or explain any parameters. Schema coverage is 0%, and the description fails to compensate by adding meaning to session_id or summary. It relies entirely on the schema's property names.

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 'Close a local diagnostic session record only', providing a specific verb and resource, and explicitly distinguishes it from runtime state changes, positioning it apart from sibling close_browser_debug_session.

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 does not explicitly state when to use this tool versus alternatives or mention exclusions, but the phrase 'does not change runtime state or configuration' implies it is for record management only, providing some context. No explicit alternatives are named.

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