octo_start_profile

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

With no annotations provided, the description carries the full burden. It adds valuable behavioral context: the tool returns a ws_endpoint for CDP connection and is idempotent ('If already running, returns existing data'). However, it does not disclose potential side effects like launching a GUI or needing authentication, yet the core behavior is well covered.

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 two sentences, front-loaded with the main action. Every sentence earns its place: the first states the purpose and method, the second describes the return and idempotency behavior. No wasted words.

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 tool is moderately complex (starts a browser profile) with no output schema or annotations. The description covers the essential behavior: what it does, how to invoke it, what it returns, and idempotency. It lacks details about error handling or prerequisites, but for an agent selecting and invoking the tool, the information is sufficient.

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%, with both parameters (uuid and headless) described in the schema. The description adds no extra parameter semantics beyond what the schema already provides. Baseline 3 is appropriate since the schema does the heavy lifting.

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 uses a specific verb ('Start') and resource ('Octo Browser profile') with the method 'by UUID'. It also distinguishes from siblings like octo_start_profile_by_name and octo_start_one_time_profile by specifying the UUID key. The return value ('ws_endpoint for CDP connection') adds further clarity.

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 clearly implies this tool is used to start a profile by UUID, but it does not explicitly state when to use it over alternatives like octo_start_profile_by_name or octo_start_one_time_profile. No exclusions or alternative recommendations are provided, so guidance is only implied.

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