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

Annotations already declare not read-only, not idempotent, and not destructive, so the safety profile is partly covered. The description adds points consumption ('citizen points (no money)') but does not state whether points are deducted, whether redemption is reversible, or clarify auth requirements beyond the schema.

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?

One short sentence with no filler, and the action is front-loaded. However, 'sealed order' is unexplained domain jargon, which slightly reduces structural clarity.

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?

An output schema exists and parameter coverage is 100%, so return values and parameters need not be repeated. Still, the description omits important usage context such as obtaining the order token via order_for_owner and confirming available points balance.

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 'order' and 'api_key' are fully documented in the schema. The description adds no parameter syntax, constraints, or meaning beyond what the schema already provides, so baseline 3 is appropriate.

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 (open) and resource (sealed order), plus the payment source (citizen points, no money). It does not explicitly distinguish the tool from sibling order_for_owner or explain what a 'sealed order' is, so it is clear but not fully sibling-differentiating.

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?

Gives no explicit when-to-use, when-not, or alternative tool. The phrase '(no money)' implies a points-based path, but prerequisites and comparisons to paid or free siblings are left unstated.

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