webmaster_reconcile_action

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

Annotations already declare idempotentHint=true, destructiveHint=false, openWorldHint=true, so the safety profile is covered. The description adds one useful constraint — it will not send a POST, i.e. it does not push the mutation itself — but it never explains what "reconcile" actually does operationally or that it acts per-principal. There is mild tension between "Read ... cannot send a POST" and readOnlyHint=false, though reconcile plausibly updates local/principal state without mutating the remote resource.

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?

Two short sentences with the main operation front-loaded and no filler. The second sentence is terse to the point of being cryptic (HTTP-method language an agent may not map to intent), but nothing is wasted.

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?

For a tool with four undocumented required parameters, no sibling differentiation, and a mutation-adjacent role in a prepare/apply/reconcile flow, the description is too thin. The output schema does relieve it of explaining return values, but the parameter and workflow gaps remain.

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?

Four required parameters with 0% schema description coverage, so the description carries the full burden and largely fails it. It only gestures at the `action` parameter ("existing action") and says nothing about `url`, `host_id`, or `idempotency_key`, nor what the recrawl/sitemap enum values mean.

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 verb pair ("read and reconcile") and a resource ("this principal's existing action"), which is more specific than a tautology. However it does not distinguish the tool from the many reconcile/manage siblings (e.g. webmaster_manage_reconcile, webmaster_prepare_recrawl, webmaster_apply_recrawl), and the enum values recrawl/sitemap are never mentioned, so the agent cannot tell which action types it covers.

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?

"This tool cannot send a POST" is a capability constraint, not usage guidance. There is no statement of when to call this versus the sibling manage/prepare/apply/reconcile tools now in the prepare→apply→reconcile family, and no prerequisites (e.g. must an action have been applied first?).

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