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

Annotations already declare destructiveHint=true, idempotentHint=true, and openWorldHint=true, so the safety profile is covered structurally. The description adds the path-scoped targeting and the underlying REST mapping (DELETE /files), but says nothing about permanence, recoverability, or required scope beyond what annotations imply.

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?

Two short sentences with the action front-loaded and no filler. The trailing 'DELETE /files' is mildly redundant for an agent but does anchor the tool to its API surface.

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 two-parameter destructive tool with full schema coverage and annotations covering safety, this is minimally adequate. An agent can call it correctly, but nothing warns about irreversible loss or failure modes (missing path, wrong workspace).

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 100%, so both parameters are already documented, including that email is optional when the token has a single Muse account. The description's 'by path' phrasing loosely reinforces the required path parameter but adds no format, encoding, or edge-case detail. Baseline 3 applies.

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?

Specific verb (Delete) plus resource (file in Muse workspace) scoped by path, which is more precise than a bare name restatement. It does not differentiate itself from nearby siblings like muse_delete_asset or muse_delete_chat, leaving the agent to infer the file-vs-asset distinction from names alone.

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 states what happens but gives no guidance on when to use this over muse_delete_asset or when a deletion is inappropriate. No prerequisites, no confirmation guidance, no mention of permissions.

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