get_invoicing_forecast

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

No annotations are provided, so the description carries the full behavioral burden, yet it discloses only that this is a lookup. It says nothing about read-only semantics, permission/auth needs, behavior on a nonexistent ID (e.g., 404 vs empty), or what the response contains.

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?

One compact sentence with the key qualifier ('by ID') front-loaded and no filler; the API version tag is minor but arguably useful provenance. Slightly terse for a tool lacking annotations, but nothing is wasted.

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 one-parameter, non-nested getter this is close to adequate, but with no output schema and no annotations, the description leaves the return shape and failure behavior undocumented. A sentence on what the forecast object contains or what happens for invalid IDs would close the gap.

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?

There is a single parameter with 100% schema description coverage, so baseline is 3. The description's 'by ID' merely restates forecastId's meaning and adds no format, sourcing, or example detail beyond the schema.

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 (Get) and resource (cashflow invoicing forecast) plus the lookup key (by ID), which cleanly separates it from list_invoicing_forecasts and the create/update/delete siblings. It stops short of naming that sibling, so it is clear but not fully differentiated in-text.

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?

'by ID' implies this is for fetching a single known forecast, with listing delegated elsewhere, but no explicit when-to-use or when-not guidance is given. An agent can infer the usage from the sibling set but must do the inference itself.

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