pika_explainer

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

With no annotations provided, the description carries full responsibility for behavioral disclosure. It only describes the transformation input-output without detailing side effects, prerequisites, limits, or constraints. This minimal transparency leaves the agent uninformed about how the tool operates.

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 sentence of 13 words, extremely concise and to the point. Every word serves a purpose, making it easily parsable with no redundant information.

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?

For a simple tool with one parameter and an output schema, the description covers basic input-output. However, it lacks context on video style, length, or quality guarantees. Given the presence of many sibling tools, more differentiation detail would improve completeness.

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 has 0% description coverage for its single 'url' parameter. The description adds meaning by suggesting the URL can be a website, GitHub repo, or written brief, which is helpful but vague. It partially compensates for schema lack but does not specify format or constraints.

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 purpose: turning a URL, GitHub repo, or written brief into an explainer video. It specifies the input types and output format, effectively distinguishing it from potential sibling tools. However, it doesn't fully align with the schema (only 'url' parameter) and could be more precise.

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 provides no guidance on when to use this tool versus alternatives like pika_app_sizzle or pika_generate. Without explicit when-to-use or when-not-to-use instructions, the agent lacks context for selection among sibling tools.

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