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

Annotations already declare readOnlyHint=false, destructiveHint=false, and openWorldHint=false, and the description is consistent with them, but it adds no behavioral context at all: no auth requirements, no note on the auto-generated name behavior, no indication of what the response contains or whether the new folder collides with existing names.

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?

Two short sentences; the purpose clause is front-loaded and useful, but the second sentence merely restates the HTTP route already implied by the tool name, so it does not earn 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?

For a simple create call with annotations covering the safety profile and a schema documenting the only field, this is minimally viable; however, with no output schema, the description should say something about the created folder's identity or the auto-naming behavior.

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 reported at 0% for the single body parameter, and the description says nothing about it. The nested 'name' property does carry an inline 'optional, auto-generated if not provided' note, but the description itself contributes no meaning beyond the wrapper path.

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?

States a specific verb and resource: 'Create a new LLM session folder'. This clearly separates it from post_strategy_llm_session (creates a session) and put_strategy_llm_session_folder_id (updates a folder), though the differentiation is carried by the name rather than the text.

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 when-to-use guidance, no prerequisites, and no mention of related siblings such as post_strategy_llm_session or the duplicate/get folder tools. The agent must infer the whole usage context from the name.

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