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

Annotations already declare readOnlyHint=true and openWorldHint=true, so safety and external-data behavior are covered. The description adds useful context that this stream is what powers the animated map, implying it is a snapshot of current radar data, but says nothing about freshness, ordering, or whether the set is capped beyond the limit parameter.

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 front-loaded with the verb+resource, which is good, but the middle is a dense comma-spliced field list that reads like a schema dump. The trailing sentence about the animated map is tangential to invocation.

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 output schema, the description carries the return-value burden and does so well by enumerating every field of an impulse. For a one-parameter read tool this is nearly enough; only ordering/freshness is unaddressed.

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 single parameter 'limit' is fully documented in the schema including its default of 12. The description adds no meaning beyond that, so the baseline 3 applies.

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 first clause names the resource precisely ('Headlines from all Orb Studio radars turned into impulses') and the rest enumerates the shape of each impulse (direction, layer, strength, headline, source, link). It is clear what is returned, but it never distinguishes itself from siblings like get_radar or get_radars, so an agent cannot tell from the text which one to reach for.

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 statement of when to call this versus get_radar, get_radars, or get_history, and no prerequisites or exclusions. The reader has to infer usage from the phrase 'all Orb Studio radars'.

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