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

Annotations already declare readOnlyHint, destructiveHint=false and openWorldHint=false, so safety is covered; the description usefully adds the 'free' cost signal and the semantics of the response (rank gaps mean a move is not shippable now, while_you_were_gone is capped at account age). It does not say anything about freshness/staleness of the data or what an empty standup looks like, which would matter for a status-report 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?

Usage guidance is front-loaded in the first clause, and the return contents follow in a single dense enumeration with no filler sentences. It is somewhat run-on and leans on internal jargon (receipts, moves, engine, while_you_were_gone) that an unfamiliar agent must parse, but every clause carries information.

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 burden of describing returns and does so by enumerating the four payload sections, which is sufficient to decide whether to call it. Minor gap: it never states that the call takes no arguments or what happens when the account is new or the scan has nothing to report.

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 no parameters, so there is no schema semantics for the description to extend. Baseline 4 applies; nothing is missing on this dimension.

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 the concrete payload: recently shipped work plus verification receipts, ranked ready moves, autonomous engine actions over 7 days, and deep-scan status. That is a specific resource rather than a restatement of the name. It does not explicitly contrast with overlapping siblings like get_activity or get_scoreboard, so an agent must infer that this is the composite daily digest.

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?

Trigger conditions are stated concretely: the user asks what to do next for growth/marketing, asks what changed, or standing orders call for it. That is clear when-to-use context. There are no explicit exclusions or named alternatives for the narrower questions (e.g. activity-only or score-only lookups), which keeps it from a 5.

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