create_ise_session

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

With no annotations, the description must disclose behavior itself. It mentions 'interactive sandbox session' and billing choices, but fails to disclose the session's side effects (e.g., whether it consumes resources, requires authorization, or returns a session ID). The operation is presumably a state-changing 'create', but no specifics are given about outcomes or prerequisites.

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?

Three short sentences, each conveying essential information: what it does, why, and billing choice. No redundant text.

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 has no output schema and no annotations, so the description should compensate by explaining return values, side effects, and when it's appropriate. It only provides a minimal overview, leaving uncertainty about what the session creation entails and what the result is.

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 schema already covers both parameters with descriptions (100% coverage). The description adds context by mentioning 'Choose free, earned-only, or external billing' for the payment_mode parameter, which helps. However, it doesn't elaborate on the auth_token or the meaning of each billing mode beyond the schema's basic description.

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 the tool's function: 'Enter an interactive sandbox session' to 'Test decision strategies before committing real DAC.' This clearly identifies the tool as a sandbox session creator for testing, distinguishing it from real DAC operations. However, it doesn't explicitly differentiate from sibling tools like create_sdac_session, despite the sandbox context implying that distinction.

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 gives clear usage context: use this tool for testing decision strategies in a sandbox before committing real DAC. It implies this is the test environment vs real operations, but it doesn't explicitly exclude alternative tools or state when not to use it.

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