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

Goes well beyond the annotations (destructiveHint=true, idempotentHint=true) by specifying exactly what is destroyed ('ERSETZT alle bestehenden email-Eintraege') and what is preserved ('domain/glob-Eintraege bleiben unberuehrt'), plus a required permission (can_manage_scope=1). This is precisely the destruction/auth detail the annotations cannot convey.

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-loads the core action and consequence, then adds the workflow rationale and permission requirement; every sentence carries weight. The trailing '| EN: ...keyword' block is a minor keyword-stuffing addition that slightly dilutes the structure.

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 destructive bulk-upload with no output schema, the description covers action, replacement scope, preserved data, intended workflow, and required permission. An agent has everything needed to invoke it correctly.

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 100% and every parameter is documented in the schema, so the baseline is 3. The description adds no format or syntax detail for code_id, filename, or file_base64 beyond what the schema already provides.

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+format: a bulk XLSX/XLS upload for the e-mail allowlist of a scope invite code. The explicit example ('500 Subunternehmer-Adressen') makes clear this is a batch operation, cleanly distinguishing it from single-entry siblings like add_code_allowlist_entry.

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 a clear usage context ('fuer den woechentlichen Neu-Upload-Workflow gedacht') and defines replacement vs preservation semantics, which implicitly routes the agent away from single-entry tools. It does not name the alternative tools explicitly, so it falls just short of a 5.

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