Publishes a paywall

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

Annotations already declare destructiveHint=true, non-idempotent, and openWorld, so the safety profile is covered by structured data. The description adds genuinely new behavioral context beyond that: it 'changes community state' and enforces a confirm=true guard for user-requested actions, which tells the agent about the confirmation gate it must satisfy. It still doesn't disclose side effects on members or reversibility.

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, front-loaded with the action and followed by the state-change/confirm constraint; nothing is padded. It is slightly redundant with the title but stays efficient.

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 destructive, non-idempotent mutation with no output schema, annotations plus the confirm gate cover the essentials. What's missing is the effect of publishing (does the paywall become publicly reachable? what happens to already-published state?) and any auth/scope requirements tied to the account parameter.

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 all three parameters (account, confirm, paywall_id) are already documented in the schema, giving a baseline of 3. The description only reinforces the confirm semantics already stated in the schema and says nothing about the account parameter or credential selection.

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 verb+resource ('Publishes a paywall'), which is clearer than a bare name restatement. However, it does not distinguish this from sibling lifecycle tools such as archive_paywall, unarchive_paywall, or update_paywall_group, leaving the agent to infer what 'publish' means state-wise.

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 confirm=true clause implies the tool should only be used when the user explicitly asked for this action, which is partial when-to-use guidance. There is no guidance on when to publish vs. archive/unarchive a paywall, nor prerequisites like required permissions or draft state.

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