Start Manual Test Session

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

With readOnlyHint=false, idempotentHint=false, destructiveHint=false, the description carries the burden but only says 'start a session'. It fails to disclose whether this creates a state, requires permissions, or has side effects beyond initiation.

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 with no unnecessary words. Every word earns its place.

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?

Despite a descriptive output schema, the description lacks context about prerequisites (e.g., launch state), what a 'manual execution session' entails, or how it relates to sibling tools like close_launch or submit_manual_test_results.

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?

All 4 parameters have descriptions in the schema (100% coverage), so the description adds no param info. Baseline 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 'Start a manual execution session for a launch' is a specific verb+resource phrase that clearly states the tool's action. It distinguishes itself from siblings like create_launch or submit_manual_test_results.

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 provides no guidance on when to use this tool versus alternatives, nor does it mention prerequisites or constraints. For example, it doesn't indicate whether the launch must be open or if this tool should precede submit_manual_test_results.

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