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 usefully adds that the profile bundles both bio fields and recent articles, but it does not disclose pagination, how many recent articles are returned, or lookup failures.

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?

Two sentences, zero waste; the scope of returned fields is front-loaded and the disambiguation instruction follows. Every sentence 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 description covers purpose, scope, and the key sibling alternative. It is essentially complete for a single-param read tool, though a note on article count or pagination would fully close the gap.

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% for the single required url parameter, and the schema already describes it as the 'Canonical Moneycontrol author URL.' The description adds no format or derivation guidance beyond what the schema provides, so the baseline of 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?

States a specific verb (Fetch) and resource (one Moneycontrol author's public profile) and enumerates the returned fields (name, job title, biography, social links, recent articles). It differentiates itself from the sibling moneycontrol_article by scoping to the author profile rather than a single story.

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?

Explicitly routes the agent to moneycontrol_article 'for one story's content,' giving a clear alternative and the condition that selects it. It lacks any when-not guidance for other author-adjacent tools (e.g. moneycontrol_news/headlines), but the core alternative is named.

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