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

With no annotations, the description carries the full behavioral burden. It usefully discloses that the stored 0–100 score may be null (unscored) and that scores are not refreshed when history is read, which is genuine behavioral context, but it omits read-only status, ordering guarantees beyond 'newest first', and any auth or rate-limit notes.

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?

The text is short but poorly front-loaded and cryptic: 'trapdoor' is used without definition and the clause 'Match ts, symbol, direction and level' lists output fields that the existing output schema already covers. Structure obscures rather than aids comprehension.

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?

An output schema exists so return-value explanation is not required, but two undocumented parameters at 0% coverage go unaddressed and the description never clarifies the score scale mismatch. For a 2-parameter tool with no annotations, this leaves key invocation details missing.

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 both parameters, so the description must compensate and does not. 'limit' is never mentioned, and 'min_score' (default 6) is not explained — worse, the description states scores are 0–100 while a default of 6 implies a small scale, creating ambiguity about the filter's units.

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 conveys that it lists today's Discord-sourced A+/B alerts in an alerts[] array, newest first, which identifies the verb and resource. However it leans on unexplained jargon ('trapdoor', 'A+/B') and never states plainly that this is a historical alert list, leaving the purpose only partially clear.

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 guidance on when to use this tool versus the obvious sibling get_latest_alert, nor any statement of prerequisites or exclusions. The only scoping hint is the implicit 'Today's' window, which is inferred rather than framed as usage direction.

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