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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is covered. The description adds genuinely useful behavior beyond that: results are configuration (not events) and sensitive tokens are redacted, which tells the agent it will not receive usable secrets. It does not mention ordering or whether webhook identifiers are returned for reuse in other calls.

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?

A single front-loaded sentence with no filler; the scope (webhooks + trigger settings) and the redaction caveat are both packed in without redundancy.

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 zero-parameter, read-only listing tool with no output schema, the description covers what is returned at a useful level of detail and warns about redaction. The only gap is whether the returned channel entries carry identifiers usable by other tools, which the agent would have to discover from the response.

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 tool takes zero parameters, so the baseline of 4 applies. Nothing in the description is needed to explain inputs, and it correctly implies an unfiltered full listing.

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 gives a specific verb and resource ('Lists configured alert webhooks') and enumerates the channel types covered (Slack, Discord, Telegram, Email) plus alert trigger settings, so the agent knows exactly what data comes back. It does not explicitly contrast itself with siblings such as read_alerts or list_monitors, though the 'notification channels' resource is distinct enough to avoid most confusion.

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?

There is no when-to-use guidance, no prerequisites, and no exclusions — nothing tells the agent whether to call this versus read_alerts or test_endpoint when investigating alerting. Usage is only inferable from the noun 'lists'.

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