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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so safety is covered. The description adds that the result contains opposing camps, a cited answer, and grounding books, which is genuine return-content context. It stops short of noting that an unknown slug may fail or how large the payload is.

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?

A single tightly packed sentence that front-loads the verb and resource. The only wasted token is the parenthetical '(EP-217)', which is opaque to an 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?

With an output schema present, the description need not explain return structure, and it correctly focuses on purpose and payload character. The remaining gap is discoverability of valid slugs and when to prefer this over sibling lookup tools.

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 the slug parameter already carries an example (microservices-vs-monolith), so the schema does the heavy lifting. The phrase 'one named engineering tension' reinforces that the slug must map to a known named tension, but adds no format or validity detail 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?

States a specific verb ('Return') and a specific resource ('one named engineering tension') plus the payload composition (opposing camps, cited answer, grounding books). This clearly distinguishes it from siblings like get_concept or search_library, though the cryptic internal reference '(EP-217)' adds noise rather than clarity.

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 when-to-use guidance and no routing versus alternatives such as get_concept or search_library. The agent must infer from the name alone that this is the tool for a single named trade-off, and nothing explains how to obtain a valid slug.

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