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

Goes well beyond annotations (readOnlyHint=false, destructiveHint=false, openWorldHint=false) by disclosing the human-in-the-loop contract: show the link and wait, the verdict belongs to the reviewer, invented confirmation arguments are silently ignored. This is exactly the behavioural nuance annotations cannot express.

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?

Front-loads the return-a-link behaviour and keeps the sibling pointer last. Some redundancy ('does NOT approve', 'do not try to confirm on their behalf') but it is deliberate emphasis for a failure mode agents commonly get wrong, so it mostly earns its place.

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 does state the return value (a link the user opens), which is the critical piece. It leaves the exact response shape and the role of `note` unstated, a minor gap for a 2-parameter tool.

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 post_id and note are already documented, which sets the baseline at 3. The description adds nothing about either parameter's meaning or format, and notably does not reconcile the `note` field ('recorded with the approval') with the claim that the tool does not approve.

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 specific and unusual verb+resource: it returns a URL for a human to approve a post, and explicitly says it does not itself approve. That distinction separates it cleanly from publish_post and queue_post in the sibling list.

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?

Gives explicit when-to-use context (a post awaiting the user's review), explicit when-not behaviour (do not confirm on their behalf, invented arguments are ignored), and names the discovery sibling `list_posts_awaiting_my_review`.

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