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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is covered structurally. The description adds worthwhile content disclosure — the returned sections and the (n/40) tile-progress aggregation — but is silent on behavior when the caller belongs to no pack, which is the main failure mode an agent would hit.

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?

One compact sentence fragment with the resource front-loaded and the returned fields enumerated in a scannable list. Not a word is wasted, and the (n/40) convention is stated inline rather than deferred.

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 parameters and no output schema, the description carries the burden of saying what comes back, and it does list the three returned sections plus the aggregation scale. It falls short only on the empty/no-pack case and any hint of staleness or refresh semantics.

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?

The tool takes zero parameters, so there is no parameter meaning for the description to add; the baseline of 4 applies. Nothing in the description misrepresents the schema, which is an empty object.

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 names a specific resource and scope — 'the caller's pack board state' — and enumerates what it contains (members, mission, aggregated member tile progress). It is clear what the tool fetches, though it draws no explicit boundary against the similarly named sibling get_my_pack.

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 when-to-use, when-not-to-use, or alternative routing statement. Usage is only implied by the possessive 'caller's' scope and by the annotations marking it a read-only fetch; an agent must infer that this is the board-level view versus a per-player view.

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