Create Session

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

The description merely repeats the 'create' action which is already implied by the readOnlyHint=false annotation. It adds no additional behavioral context such as required user association, session binding to agents, or side effects. With annotations present but minimal, the description fails to add any value beyond them.

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 one sentence with zero redundant words, making it very concise. However, it is so minimal that it lacks context, though this dimension specifically rewards lack of waste, so a high score is justified.

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?

Given the large sibling tool set with multiple session creation tools, the description is far from complete. It does not explain what a session is, how this differs from other session tools, what the return value looks like (no output schema), or any important behavioral context. The description alone is insufficient for an agent to confidently select and invoke the tool.

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?

The input schema has 100% coverage of parameter descriptions, so the schema carries the burden of documenting each parameter. The description 'Create a new session' adds no extra meaning to the parameters, netting a baseline score of 3.

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 action (create) and the resource (session) in 'Create a new session.' It is specific enough for basic understanding, but it does not differentiate this from sibling tools like lyzr_session_create_for_agent or lyzr_session3_create, which also create sessions.

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 use this tool versus alternatives. The description lacks any mention of prerequisites, when to choose this over other session-creation tools, or any exclusions.

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