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

Goes well beyond the annotations (readOnlyHint=false, idempotentHint=false, destructiveHint=false) by disclosing the reservation state machine: Received consumes the reservation, only a verified terminal rejection releases it, and processing/unknown/historical imports keep it. It also warns that a receipt never proves full reading or human approval, which is genuinely useful context. Minor tension: it calls itself a 'status check' and says repeating is safe while idempotentHint=false, though the description's own mutation note explains the non-read-only hint.

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 core action in the first sentence, and the follow-on sentences about reservation semantics earn their place. Slightly weighed down by the unexplained 'including AZUR610' example, which reads as unnecessary noise.

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?

Behavior for a stateful import-reconciliation tool is well covered, and no output schema means return details are not required. But with two required identifiers and no output schema, the absence of any parameter or result context leaves the definition adequate rather than complete.

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 only 50% (projectId documented, importId bare), and the description never mentions either parameter, its format, or its origin. At this coverage level the description is expected to compensate and does not, adding no meaning 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?

Sentence 1 gives a specific verb (Refresh) and resource (business-library import) plus the mechanism (from its immutable backend receipt, without uploading again), which is more than a restatement of the name. However, it names no sibling (e.g. helvabase_source_imports, helvabase_cancel_source_upload, helvabase_preview_sources) to disambiguate, and the heavy jargon ('receipt', 'reservation') leaves the exact operation somewhat opaque.

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: 'without uploading again' and 'Repeating this status check is safe' suggest when to call it, but there is no explicit when-to-use/when-not or named alternative among the ~120 siblings. An agent must infer the routing itself.

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