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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is covered. The description adds useful domain constraints ('No price and no setting in money', nothing beyond what a chat run takes) but does not explain return shape or pagination, so it adds only moderate behavioral context.

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?

The main sentence is a convoluted run-on with nested clauses and awkward grammar, and the actual operation is not front-loaded clearly. The Args block is structured and useful, but the overall prose sacrifices clarity for a stream of qualifiers.

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?

With no output schema and 0% schema description coverage, the description should clarify both operation and return behavior. It partially does so by describing cards with names, descriptions, settings as controls, and card changes ordered first, and it documents both parameters. However, the core operation remains ambiguous and sibling differentiation is absent.

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 0%, so the description has to carry parameter meaning. It does document both parameters: task_id as the run shown by the card, and changes as an optional list of {'card': id, 'setting': key, 'value': ...} objects, which materially supplements the untyped schema. A minor gap is that task_id format or source is not clarified.

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 never states a clear verb+resource operation; the opening clause 'which calls it when the result shows' is ungrammatical and forces the agent to infer whether this retrieves, renders, or lists card settings. It identifies the domain as a circuit result card, but does not clearly differentiate it from siblings such as card_setting, card_share, or show_report_card.

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?

It gives an implied usage context ('For a circuit's result card only... when the result shows') and some exclusions around money/chat-run settings, but it does not name alternatives or say when not to use this tool. The guidance is present but must be inferred from awkward phrasing.

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