simulate_purchase_flow

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

With no annotations, the description fully discloses it's a simulation without real payments, mentions guest mode, and outlines steps. This is sufficient for a non-destructive tool, though it doesn't mention auth requirements (likely none).

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 sentences with no filler. Key information is front-loaded: what it simulates, steps, and a usage hint.

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 simulation tool with 5 parameters and no output schema, the description explains purpose, constraints, and usage hint. It could mention the return format, but that's a minor gap.

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 coverage is 100%, so baseline is 3. The description adds no extra meaning beyond the schema; it mentions 'guest demo cap: 1000' which is already in the amount parameter 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 clearly states the tool simulates the Shatale agent payment lifecycle in guest mode, listing steps (policy check, approval decision, virtual card, timeline). It distinguishes itself from siblings by specifying guest mode and simulation.

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?

Provides explicit use case: 'Use this before registering for a sandbox key.' Also clarifies it's safe ('No real API call or payment is made.'), but no specific when-not-to-use or alternative tools.

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