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

Beyond the annotations (readOnly/idempotent/non-destructive), the description discloses the required sync-schema permission, clarifies that this permission alone suffices to read structure, notes conditional flow data for fully-privileged tokens, and states the cost as "1 request" — exactly the auth and rate context annotations cannot carry.

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 what is exported, then usage, permission and cost; no redundant restatement of the name. The opening fragment reads awkwardly but wastes no words.

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 an output schema present, return shape need not be explained, and the description covers content scope, filtering, permission prerequisite and request cost. Only a pointer to a sibling alternative is missing, a minor gap for a read-only export.

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 schema already documents lists, scope and tagged. The description adds only the intent ("Filter by scope, tags or lists on big accounts"), with no syntax or precedence detail beyond the schema, making the baseline 3 appropriate.

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 title and opening phrase state the resource and output format precisely: the account's lists, indexes and write rules exported as a schema sync document keyed by pathName. It is distinguishable from apply_schema_sync/plan_schema_sync by framing itself as the read/export side of schema sync, though the opening is a verbless fragment that leans on the title for its action.

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?

"The easiest way to start managing an existing account with schema sync" gives a clear adoption context, and "Filter by scope, tags or lists on big accounts" tells the agent when the optional params matter. It does not name an explicit alternative (e.g. plan_schema_sync) or state when not to use it, so it stops short of the 5 bar.

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