Test Channel

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

The annotations declare readOnlyHint=false, destructiveHint=true and openWorldHint=true, and the description earns its keep by explaining why: the alert is posted asynchronously (within a minute) with an automatic resolve five minutes later, and on PagerDuty it opens an incident that pages on-call staff. That is exactly the kind of side-effect context annotations cannot convey. It does not say whether the test can be cancelled or what the response contains, which keeps it off a 5.

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 tight sentences, front-loaded with the action and its destination, followed by the consequential consequences (timing and paging). Every clause carries information; nothing is padding.

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 side-effecting tool with no output schema, the behavioral half is well covered — timing, delivery target, and on-call paging. But with five undocumented parameters at 0% schema coverage, an agent cannot confidently choose the right channel or environment, which leaves a material gap for a destructive operation.

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 0% across five parameters, and the description supplies no parameter meaning at all. It never explains how channelId selects the destination, what workspaceSlug/appSlug scope, or what env and region change about which Alertmanager receives the test — a real risk given a destructive tool that pages people. The one enum (env) is the only partly self-documenting field.

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 states a concrete verb and effect: it hands a test alert to the app's Alertmanager, which posts to the channel. That is a specific, non-tautological purpose an agent can distinguish from createAlert or listChannels. It stops short of explicitly naming the sibling tools it is not, so it is clear but not maximally differentiated.

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?

Usage is only implied: the agent must infer this is the tool for verifying channel wiring rather than sending a real alert via createAlert. There is no explicit when-to-use statement, no prerequisites (e.g. does the channel need to exist and be linked to an integration?), and no guidance on when not to call it.

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