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

Annotations already declare readOnly, idempotent, non-destructive, and closed-world, so the safety profile is covered. The description adds genuine context beyond that with "Secrets are hidden" — telling the agent that credentials/webhook URLs will be redacted and cannot be read back or reused, which affects how it should reason about update flows.

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: the action and scope come first, followed by the supported channel types and the redaction caveat. The parenthetical list is long but each entry conveys supported-integration coverage rather than filler.

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?

There is no output schema, so the description carries the burden of explaining what comes back, and it only partially does so (channel kinds exist, secrets are hidden). It never indicates the fields on a returned channel object (id, name, type, enabled state) that an agent would need to chain into vs_channels_get or monitor channel assignment.

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 and the schema is an empty, closed object, so there is nothing for the description to clarify. Baseline 4 applies with no parameter-semantics gap to fill.

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 with scope ("List the workspace's alert channels"). The parenthetical enumeration of channel types (email, Slack, PagerDuty, webhooks, etc.) subtly disambiguates from vs_alerts_list by making clear these are notification destinations rather than alerts, though no sibling is named explicitly.

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?

No explicit when-to-use or when-not-to-use guidance, and no mention of the related vs_channels_get / vs_channels_create / vs_channels_test siblings. Usage is implied by the tool name and the obvious discovery role of a list endpoint (e.g., finding channel IDs before assignment).

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