start_session

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

With no annotations, the description must disclose behavioral traits. It only says 'launch Tauri app', missing critical details like whether the call blocks until the app is ready, if it returns a session ID, or what happens on failure.

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?

Single sentence with no wasted words. The parenthetical adds clarity. Could be slightly more informative without losing conciseness, but it is not overly terse.

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 tool that launches an application, the description lacks information about return values, error states, expected duration, and side effects. No output schema, so description should cover these aspects.

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 coverage is 100%, so parameters are documented. However, the tool description adds no meaning beyond the schema; for example, it doesn't explain how 'wait_for_ready' interacts with 'timeout_secs'. Baseline of 3 is appropriate.

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 verb ('Start') and the resource ('session'), and includes a parenthetical explanation ('launch Tauri app') that distinguishes it from siblings like 'stop_session' and 'get_session_status'. However, 'session' could be more specific about what kind of 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?

No guidance is provided on when to use this tool versus alternatives. For instance, it doesn't explain whether it should be called before other tools, if there are prerequisites, or when 'stop_session' is needed.

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