Get Open Foreshadows

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

With no annotations, the description carries the burden of behavioral disclosure. It adds that the query includes 'chapters_since_hint', which is useful context about the output, but does not mention read-only nature, response format, or edge cases. The addition of 'open' clarifies scope, but richer behavioral details are absent.

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, direct sentence that is front-loaded and free of redundancy. It is appropriately concise for a simple query tool, though it could benefit from slightly more context without becoming verbose.

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?

Given the tool's simplicity (one parameter, no output schema, no annotations), the description is minimally adequate but lacks usage context and clarification of return behavior. It does not distinguish clearly from the sibling get_foreshadows_due, so the agent may not know which to invoke without further inference.

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 description coverage is 0%, and the description does not explain the meaning or purpose of the required project_id parameter. While the parameter name is self-evident from context, the description does not compensate for the schema's lack of explanatory text, leaving the agent to infer its role.

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 queries open foreshadows, using the verb '查询' (query) and specific scope '开放中的伏笔' (open foreshadows). It distinguishes from siblings like get_foreshadows_due and register_foreshadow by focusing on 'open' ones, though it does not explicitly name alternatives.

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?

No guidance is provided on when to use this tool versus related tools such as get_foreshadows_due or hint_foreshadow_again. The description simply states the function without any contextual usage conditions or exclusions.

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