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

With no annotations provided, the description carries the full burden of behavioral disclosure. It does disclose an important trait—'Content is not recorded'—and clarifies that the session makes no decision/accountability demands. But it omits lifecycle details, side effects, permission needs, return values, or how the session is later exited, leaving meaningful behavioral gaps.

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 with no filler. The purpose is front-loaded, and every clause adds information: the state type, the missing obligations, the recording behavior, and the billing choice.

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 simple (two optional parameters, no nested objects, no output schema), and the description covers the core semantics. However, it doesn't mention what the tool returns, what an ISE session is, or how/why one would leave it. An agent could invoke it correctly but would be guessing about lifecycle and billing implications.

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 schema already documents auth_token and payment_mode. The description only restates the billing choice ('free, earned-only, or external') without explaining what those modes mean or affecting how either parameter is used. This matches the baseline for high schema coverage.

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 states a clear action and resource: it creates/enters a non-productive state where no decision, execution, or accountability declaration is required. It also adds meaningful scope by saying content is not recorded. It doesn't explicitly distinguish itself from siblings like create_sdac_session or exit_ise_session, and 'ISE' is never expanded, so it falls just short of a 5.

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 implies when to use the tool: whenever a non-productive state is desired and no decision/execution/accountability is needed. However, it gives no explicit when-not-to-use guidance and never points to alternatives such as exit_ise_session or create_sdac_session, so usage context is only partially clear.

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