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

Annotations already declare readOnly, idempotent, non-destructive, closed-world, so the safety profile is covered. The description adds genuinely new behavioral context: the content is a fixed reference document, it only needs to be read once per session, and get_workspace duplicates it in an empty workspace. It doesn't state size or format of the returned text, which keeps it from a 5.

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 sentences, both front-loaded: the first says what you get, the second says when to call it and when not to. No filler, and the most decision-relevant information (read once before create_view/update_view) is unmissable.

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?

With no parameters, no output schema, and annotations covering safety, the only remaining burden is telling the agent what comes back and when to fetch it. The description does both, and even guards against redundant fetches via get_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?

Zero parameters, so there are no parameter semantics to explain and the baseline is a 4. The description correctly implies a parameterless call by describing the guide as complete and unconditional.

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 ('Returns the complete how-to for Quillm') and then enumerates exactly what the payload contains: view code contract, template, importable libraries, styling rules, dataset conventions. This is far more specific than the sibling get_view or get_workspace, and the agent can tell which one to call.

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?

Explicitly says when to use it ('Read this once per session before you call create_view or update_view') and when not to ('not again: get_workspace in an empty workspace already includes it'). It names the alternatives and the condition that supersedes this tool, leaving no inference required.

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