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

Annotations already declare readOnlyHint=false, openWorldHint=true, idempotentHint=false, destructiveHint=false, so the safety profile is largely covered. The description adds that hosting is server-side and account-scoped, but the truncation cuts off any disclosure of cost, duration, or cleanup behavior.

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 single sentence is short but is cut off mid-clause, so it fails to deliver a complete thought. Under-specification rather than verbosity is the problem.

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 output schema, an undocumented parameter, and mutable open-world behavior on annotations, the description must carry most of the load — and it stops mid-sentence, leaving an agent without enough to call the tool correctly or predict its effect.

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?

Only one parameter (cell) with 0% schema description coverage, so the schema provides no semantics. The description hints the value refers to "a public cell from the ce store" but never states whether it is a name, id, or URL, nor how to obtain it.

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 starts with a concrete verb ("Keep ... running on our servers for your account") which conveys hosting semantics, but it is truncated mid-sentence ("answers on the...") and leaves the key result of hosting unspecified. "Cell" and "ce store" are unexplained domain terms, so an agent cannot fully distinguish this from siblings like host_list or host_stop.

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?

No indication of when to use this versus host_code, host_stop, host_list, or cell_publish, all of which live in the same hosting/cell family. There is no mention of prerequisites (ownership, prior publication of the cell) or of how to undo hosting.

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