azure_get_cost_forecast

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It mentions the Cost Management credential requirement, which is useful, but it does not state whether the operation is read-only, how the forecast is calculated, what response formats are produced, or whether there are rate limits or other side effects.

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?

The description is two short sentences with no filler, and the primary action is front-loaded. It is concise, though the brevity borders on under-specification rather than economical completeness.

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 five parameters, no output schema, no annotations, and 0% schema descriptions, this single-sentence description is not enough for an agent to call the tool correctly. It provides only a basic purpose and one credential prerequisite, leaving parameter semantics, return behavior, and selection criteria 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 coverage is 0%, so the description must compensate for undocumented parameters. It does not: none of startDate, endDate, timeframe, granularity, or response_format are explained beyond the vague phrase 'for a period.' The agent gets no added meaning about required formats, defaults, or valid combinations.

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 uses a specific verb ('Retrieve') and resource ('Azure cost forecast') plus a time scope ('for a period'). It is clear about the core function, though it does not explicitly contrast itself with sibling tools like azure_query_costs.

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 guidance on when to use this tool versus alternatives such as azure_query_costs or azure_estimate_architecture_cost. The only context provided is the credential requirement, which is not enough to help an agent select among the eight sibling tools.

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