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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is known. The description adds context about the card content and its UPSC relevance, but doesn't disclose details like pagination, formatting, or rate limits. Similar to the calibration example, this adds some value but not rich behavioral context.

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 two sentences: the first states the purpose and content, the second gives usage guidance. It is front-loaded with the primary purpose and contains no redundant or filler text.

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?

There is no output schema, but the description adequately explains what the tool returns (concept cards with specific content). With strong annotations and schema coverage, this is sufficiently complete for an agent to select the tool. It does not detail response format or pagination, but that is not critical for a read-only list tool.

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 description coverage is 83%, with clear descriptions for five of six parameters (days, topic, category, gs_paper, language). The description itself doesn't elaborate on parameter semantics, but since the schema covers the parameters well, the baseline 3 applies.

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 a specific action ('distilled') and a specific resource ('NewsPulse concept cards'), and explains the card content. It distinguishes from sibling tools by focusing on 'current affairs for UPSC', making its purpose unambiguous.

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 includes explicit when-to-use guidance: 'Use for any current affairs for UPSC request'. However, it doesn't mention exclusions or alternatives, so a 4 is appropriate rather than a 5.

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