interpret_expansion_signal

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

No annotations are provided, so the description must fully disclose behavioral traits. It mentions returning 'implications and outreach playbook' but does not clarify side effects, required permissions, or whether the operation is read-only. The lack of detail beyond the return type leaves the agent uncertain about invocation behavior.

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 concise with two sentences, front-loading the purpose and listing inputs. No redundant information; every sentence serves a clear function.

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 simple schema (one enum parameter) and no output schema, the description should fully explain the tool's behavior and output format. However, it vaguely mentions 'implications and outreach playbook' without detailing the structure or format of the return value, leaving the agent without complete context.

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?

With 0% schema description coverage, the description should compensate by explaining the parameter. It only repeats the enum values already in the schema without adding meaning (e.g., definitions of each expansion type). The parameter name 'expansion_type' is self-explanatory, but the description adds minimal semantic value beyond the schema.

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's function: interpreting a market expansion signal and returning implications and an outreach playbook. It lists the three specific types, making it distinct from sibling tools like interpret_funding_signal or interpret_hiring_signal, which handle different signal categories.

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 expansion signals (international office opening, vertical expansion, product launch) but does not explicitly state when to use this tool over alternatives, nor does it provide exclusions or prerequisites. While the sibling list offers context, the description lacks direct guidance.

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