Create a debugging session

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

With no annotations, the description carries the behavioral disclosure burden. It reveals that all hypotheses and executions are tracked under a sessionId, which is a meaningful behavioral trait. It also indicates this is a prerequisite for other actions, but does not detail side effects or return format.

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 three concise sentences, each adding value: the primary action, the sessionId tracking mechanism, and the ordering guidance. No wasteful or redundant wording.

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 simple create tool with two parameters and no output schema, the description is nearly complete. It explains the core behavior, the sessionId linkage, and when to call it. It does not explicitly state the return value, but the mention of sessionId is a sufficient hint. Minor gaps remain around response details.

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 100%, so the parameters are already well-documented. The description does not add additional meaning about 'title' or 'description' beyond what the schema provides, so the 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 uses a specific verb 'Starts' and resource 'debugging session', clearly conveying the tool's function. It distinguishes itself from siblings by specifying that it is the creation entry point for the session lifecycle, not listing, getting, or resolving.

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 explicitly states 'Call this first, before creating hypotheses or executions,' providing clear usage guidance and ordering relative to related tools. It does not list alternative tools, but the instruction to call it first is a strong contextual guideline.

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