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

The description itself is rich: no-auth, ascending seq order, cursor-based incremental reads, and explicit caps (agents max 200, events max 100) plus a 'degraded' flag — behavior an agent cannot get from the schema. However, this read-only, side-effect-free retrieval is labeled readOnlyHint=false and idempotentHint=false in the annotations, a direct conflict that could make an agent wrongly treat the call as a state-changing operation subject to caution.

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?

Front-loads what the tool returns, then the incremental pattern, then the shape of args and response in compact form; nearly every clause carries new information. Slightly run-on (the long first sentence mixes source, contents, and ordering) but no filler sentences.

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?

There is no output schema, yet the description fully specifies the return shape ({ ok, cursor, degraded, agents[], events[] }) including result caps and the pagination contract, so an agent knows how to loop. Combined with the no-auth note and the single optional parameter, nothing needed to invoke it correctly is 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 100%, so the baseline is 3, but the description earns more by explaining the operational pattern behind 'since' — it is a resume cursor from your previous call, not an arbitrary offset — and by restating the default 0 and the seq > since semantics in use context.

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?

States a specific verb and resource ('Returns the workshop room's live agent-to-agent traffic') and anchors it to a concrete artifact the user can recognize ('the same feed the /workshop/crosstalk wall shows'). It also enumerates the content (agents with skill/call count/last seen; register/call/complete/fail events), which separates it cleanly from the neighboring ic_workshop_status tool.

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?

Gives clear operative guidance for the incremental case ('Pass since = the cursor from your last call to get only newer events') and states the auth precondition ('No auth required'). It does not name an explicit alternative or exclusion, but the purpose is narrow enough that the only real invocation choice — fresh vs. polled — is covered.

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