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

No annotations are provided, so the description carries the full burden. It does disclose a genuine behavioral constraint not derivable from the schema – that exactly one credential field must be supplied and it must match channel_type – but it omits permissions, error/duplicate behavior, and side effects of this mutation.

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 with the imperative, then a single mutually-exclusive rule, then a tight aligned table. Every line earns its place with no 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?

With no annotations and no output schema, the description should cover return/success behavior and auth requirements, which it does not. Its coverage of the create-specific parameter rules is good, but the operational context is thin and min_severity is unaddressed.

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%, so the description must compensate, and it does for the four interdependent credential params by mapping enum values to the correct field with examples. It adds no meaning for min_severity, which is left undocumented.

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 ('Create an alert channel'), so the agent knows exactly what it does. It does not explicitly distinguish itself from the sibling list_alert_channels, but the verb alone is unambiguous against the other create_* tools.

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?

Gives clear conditional guidance mapping each channel_type to the parameter it requires via a compact table, which is strong 'how to invoke' guidance. It stops short of stating when to prefer this over siblings or any prerequisites for calling it.

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