pplx_claude_opus_think

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

With no annotations provided, the description must disclose behavioral traits. It mentions 'extended thinking' but does not explain what that entails (e.g., slower responses, deeper reasoning). It fails to state output behavior or side effects, leaving significant gaps.

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 at two sentences, with no wasted words. However, it lacks necessary information, so conciseness comes at the cost of completeness. It is appropriately sized but not fully effective.

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 complexity, multiple siblings, and absence of annotations, the description is severely incomplete. It does not explain the tool's action, output, or differentiation, leaving the agent with insufficient context to use it correctly.

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 0%, and the description does not mention the two parameters (query, source_focus). The description must compensate but provides no parameter semantics, leaving the agent without guidance on how to fill the parameters.

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 identifies the tool as Claude Opus 4.7 Thinking, a reasoning model with extended thinking. It conveys the purpose of generating advanced responses, though it does not explicitly differentiate from sibling think tools like pplx_claude_sonnet_think.

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 cost and subscription requirements but offers no guidance on when to use this tool versus alternatives such as pplx_claude_opus or pplx_claude_sonnet_think. There is no mention of when to prefer this tool or when not to use it.

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