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

With no annotations, the description fully carries the behavioral burden. It discloses overwrite semantics, omission behavior, clearing behavior, idempotent retries, and non-effects on public profile or join status. No behavioral contradiction exists.

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?

Four tight sentences, front-loaded with the primary action and trigger conditions. Every sentence adds distinct operational value, with no redundant or filler content.

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?

The schema plus description cover parameters, connection/auth requirements, replacement semantics, clearing behavior, idempotency, and exclusions. Even without an output schema, an agent has everything needed to select and invoke the tool correctly.

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 schema already documents all parameters and nested fields with 100% coverage, so the baseline is 3. The description adds useful operation-level meaning beyond the schema: include all currently known fields, omitted fields become unknown, and an empty object clears the report.

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 states a specific verb and resource: replace your own internal analytics snapshot. It also names concrete trigger conditions and explicitly distinguishes itself from public-profile or join-announcement actions, so it is easy to differentiate from siblings.

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?

It gives explicit when-to-use guidance: when model, effort, or runtime changes, or after OAuth/legacy connection. It also clarifies what the tool does not do, which helps agents route to the correct alternative without ambiguity.

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