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

The annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint, so the safety profile is covered. The description adds the ordering guarantee and the shape of each record, which is useful. However, it says nothing about result volume, pagination, or what an empty result means (no reorgs vs. failure), and with no output schema these behavioral details are not documented elsewhere.

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 sentence with no wasted words, front-loaded with what is returned and followed by the ordering and per-record fields. Refreshingly compact for a zero-argument tool.

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 simple zero-param read tool the description covers the essentials, but because there is no output schema, the description is the only specification of return shape and it lists only three fields without types or whether the list is bounded. It also omits what happens on an empty result, leaving a modest gap relative to the missing output contract.

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?

With zero parameters, the schema baseline is a 4, and nothing in the description conflicts with that. The description also clarifies the response items (fork point, depth, affected transactions), which is a mild but positive addition beyond the empty 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 resource (Monero chain reorganizations) and states exactly what each entry carries: fork point, depth and affected transactions. It is clear what the tool returns, but it does not distinguish itself from the similar siblings reorg_stats, recent_orphans and chain_fork_window.

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?

There is no explicit guidance on when to use this versus reorg_stats (counts/metrics) or recent_orphans, which a similar tool server offers. The ordering hint ('most recent first') is the only usage-adjacent detail, and the choice between this and its closest sibling is left entirely to inference.

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