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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds only the freshness qualifier ('current') and the single-section scoping constraint; it says nothing about pagination, result count, or ordering, which would be valuable for a headlines feed.

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 tight sentence front-loads what is returned before the input constraint, with no redundant or filler content. Every clause earns its place.

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, return values need not be explained, and the one required parameter is fully documented in the schema. The definition is complete enough to invoke correctly; only minor gaps like result volume or ordering behavior remain.

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 100% and the schema already enumerates all 35 valid section slugs, so the description's reminder that section comes from indiatoday_sections is a useful cross-reference but not net-new meaning. Baseline 3 is appropriate when the schema carries the parameter detail.

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+resource combination ('current India Today headlines') scoped to 'one public section', which is more precise than a bare name restatement. It partly differentiates from siblings like indiatoday_news and indiatoday_article by specifying headlines and section scoping, though it does not explicitly contrast with them.

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?

Gives an explicit precondition and routing rule: 'section must come from indiatoday_sections', naming the sibling tool that supplies valid inputs. It stops short of stating when to prefer this over indiatoday_news or indiatoday_article, so it falls shy of full when/when-not guidance.

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