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

Annotations already declare readOnlyHint, idempotentHint and non-destructive, so the safety profile is covered. The description usefully adds ordering (newest first) and per-item status/link, but the sentence 'It uses none of the reader's reports' is confusing and reads like a garbled statement about arguments rather than a behavioral fact.

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 short sentences, but the second is opaque and earns no place — an agent cannot act on 'It uses none of the reader's reports'. The useful content is front-loaded, at least.

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 return-value detail is redundant rather than necessary. What is missing is scope disambiguation ('from here' — whose reports, which workspace) and any routing versus get_report, so the definition is adequate but not complete.

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 limit parameter already documents range (1-20) and default (10). The description only echoes the 'newest first' ordering, adding nothing 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?

The description gives a specific verb and resource: see the reader's recent reports, newest first, each annotated with readiness and a link. It is distinguishable from get_report (single report) and check_company, though 'from here' is vague about scope.

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?

'Use this to see the reader's recent reports' implies the retrieval scenario but never states when to prefer it over get_report, nor any exclusion or prerequisite. Usage is only implied.

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