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

Beyond the readOnlyHint/openWorldHint annotations, the description discloses an unusual auth requirement ('needs the channels:manage capability rather than plain read') and reveals that results expose sensitive destinations. That is meaningful context annotations cannot convey, though pagination/result-size behavior is unaddressed.

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-loaded purpose sentence, then usage, capability note, and parameter doc in a logical order. The quoted 'Where do my alerts go?' plus JSON example is mildly redundant but does show the valid empty-arguments call.

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?

An output schema exists, so return values need no explanation, and the description still characterizes the payload. Auth requirement, param semantics, and routing to the create/update tools cover everything needed to invoke it correctly.

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 coverage is 0%, so the description must carry the single parameter — and it does: accepted forms (id, name, org-name/workspace-name), the disambiguation condition, and the default. Nothing about 'workspace' is left ambiguous.

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 and resource ('List where this workspace's alerts can be delivered') and immediately disambiguates from the rule-listing siblings by describing the returned destination content (webhook URL, email recipient list, Slack channel). An agent can distinguish this from list_alert_rules and list_alerts without opening a schema.

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?

Explicitly names the downstream use case: find a channel id for create_alert_rule or update_alert_rule. It does not state exclusions or contrast directly with list_alert_rules/create_alert_channel, so it stops short of full when-not guidance.

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