panelica_file_manager_patch_v1_files_permissions

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

Annotations already indicate readOnlyHint=false and idempotentHint=false, so the description's 'Mutating: changes server state' adds little beyond what is structurally known. It does add a useful auth requirement ('Required scopes: files:write'), which is beyond the annotations, but it does not disclose effects like whether existing permissions are replaced or whether recursive application has additional consequences.

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 compact and free of fluff. Each line earns its place: the action, HTTP endpoint, category, required scope, and mutability flag are all useful and quickly scannable. No unnecessary prose is present.

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?

The description and schema together give enough to identify the endpoint and required fields, but the description alone omits important context such as the meaning of 'path', the behavior of 'recursive', and when to prefer this tool over related file-manager operations. With no output schema and a nested required body, a bit more context would meaningfully improve call correctness.

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 reported as 100%, so the baseline is 3 even though the free-text description adds no parameter explanation. The schema provides meaningful descriptions for user_id and permissions (e.g., 0755), though path and recursive have empty descriptions. The tool description itself does not compensate for those gaps.

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 states a specific action and resource: 'Change file permissions.' This clearly communicates the tool's purpose and is distinct from siblings like panelica_file_manager_patch_v1_files_ownership or panelica_file_manager_patch_v1_files_rename. However, it does not explicitly differentiate itself from sibling tools beyond the resource name, so it falls short of a 5.

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?

The description provides no guidance on when to use this tool versus alternatives. It includes useful metadata like required scopes and HTTP method, but there is no mention of when to choose this over panelica_file_manager_get_v1_files_permissions or panelica_file_manager_patch_v1_files_ownership, nor any exclusions or prerequisites beyond the scope.

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