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

No annotations are provided, so the description carries the full behavioral burden, and it discloses almost nothing: no statement of read-only vs mutating behavior, no return shape, no pagination or refresh semantics. 'Current' hints at freshness but there is no substantive behavioral context for an unannotated tool.

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?

It is a single short, front-loaded sentence with no filler, so it is structurally compact. However, the brevity comes at the cost of substance, making it under-specified rather than genuinely concise.

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 no annotations, no output schema, an undocumented parameter, and ambiguous sibling relationships, the description would need to do much more work. It orients the agent to a pool and 'events' but omits everything else needed to invoke the tool confidently.

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 0% for the single required parameter, so the description must compensate and does not. 'Your pool' loosely implies pool_id, but gives no format, source, or expected value, leaving the only parameter semantically undefined.

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 is a noun phrase ('Current typed diff events for your pool') rather than a verb+resource statement, and the name 'check_pool' does not line up with what is described (fetching diff events). An agent can guess it reads event data for a pool, but it cannot tell what 'typed diff events' means or how this differs from siblings like precommit_query or shadow_price.

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 when-to-use guidance, no preconditions, and no mention of the sibling tools (precommit_query, register_pool, shadow_price) that could be alternatives. The only implicit signal is 'your pool', which is too weak to route the agent.

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