get_daily_fortune

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

No annotations are provided, so the description carries the full burden. It describes what information is returned (general energy, lucky directions, favorable colors, suitable/avoid activities, overall predictions), which gives a good sense of behavior. However, it does not mention side effects, resource consumption, or that it is read-only.

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 description is a single paragraph that front-loads the key purpose and lists outputs efficiently. It could be slightly more concise but is well-structured for an AI agent.

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?

No output schema is provided, so the description must explain return values. It does so by listing several categories of information (general energy, lucky directions, etc.), which is fairly complete. However, it lacks details on the exact structure or format of the output.

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% and both parameters ('date' and 'culture') have descriptions. The description adds minimal extra context beyond the schema, but reemphasizes the cultural context. Baseline 3 is appropriate given high 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 clearly states the tool provides comprehensive daily fortune analysis based on traditional Chinese almanac and lists specific outputs like general energy, lucky directions, and favorable colors. It distinguishes from sibling tools that focus on specific activities or time slots, such as check_auspicious_date and get_lucky_hours.

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 usage for a holistic view of the day's auspiciousness (e.g., 'beyond specific activities'), but does not explicitly state when to use or when not to use this tool versus alternatives. No explicit exclusions or alternative recommendations are provided.

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