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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint, so the safety profile is covered. The description adds useful context about what data is returned (sync time, IP counts, blocked status) and implies the tool handles both connected and disconnected states. It does not mention any side effects, but no such effects are expected for a read-only status check.

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, no filler. The first sentence lists the concrete reporting items; the second provides usage guidance. Every word contributes value.

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?

For a zero-parameter, read-only status tool with strong annotations, the description is complete. It covers the main return data fields, the integration validation use case, and the relationship to sibling tools. No output schema exists, but the description sufficiently explains what the tool reports.

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?

The tool has zero parameters, so the baseline is 4. The description correctly implies no input is needed by focusing entirely on the output. No parameter explanation is required.

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 the tool reports whether Microsoft SNDS is connected, last sync time and status, tracked IP count, and blocked IP count. It uses a specific verb ('Report') and resource ('Microsoft SNDS status'), and differentiates from sibling get_snds_ip_stats by explicitly mentioning it should be used first.

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 says 'Use before get_snds_ip_stats to confirm the integration is live', giving a direct usage context and naming the alternative. This is clear guidance on when to use this tool versus get_snds_ip_stats.

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