close_session

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

With no annotations, the description carries the full behavioral burden. It mentions resource release, but does not state whether the close is irreversible, what happens to subsequent calls on that session, or what error behavior occurs for an invalid/already-closed sessionId.

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?

One short, front-loaded sentence with no filler. It is efficient, though arguably too terse to serve as a complete definition.

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?

For a session-termination tool with no annotations and no output schema, the description should say more about state effects, error cases, and sessionId provenance. It leaves critical invocation context to inference.

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% and the single parameter 'sessionId' is never mentioned in the description, not even to indicate where it comes from (e.g., list_sessions or launch_electron_app). The UUID format constraint is only conveyed by the schema's regex, which is opaque without explanation.

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 gives a specific verb ('Close') and resource ('Electron testing session') with an added effect ('release resources'). It is distinguishable from lifecycle siblings like launch_electron_app and connect_to_electron_cdp, though it does not explicitly name them.

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 call this versus leaving a session open, nor any mention of prerequisites or follow-up steps. Usage is only implied by the notion of cleaning up a session.

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