Alias

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

With no annotations, the description carries the full behavioral burden. It does disclose one meaningful trait: aliases are global and 'shared across all profiles', which matters for multi-profile agents. However, it omits destructive/irreversible effects of the delete action and what happens to notebooks still referencing a removed alias.

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?

Three short sentences, front-loaded with the definition and no filler. The only minor redundancy is restating the alias concept twice, but overall it is tight and readable.

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?

An output schema exists, so return values need not be described, and the definition of the concept is supplied. What is missing is per-action behavior for a multi-mode tool (e.g. what 'set' requires, what 'delete' removes) and the global-scope implication for mutation, leaving the definition minimally adequate.

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% – each of the four parameters is documented inline, including the (get/set/delete) and (set) scoping hints. The description adds no per-parameter detail beyond the schema, so the baseline of 3 is correct.

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 names the resource (aliases) and defines it concretely as 'short names that stand in for notebook IDs', which an agent can use to distinguish this tool from notebook_rename or tag. The verb 'Manage' is generic CRUD, but the second clause clarifies the effect well enough to be actionable.

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?

It explains the payoff of an alias ('any tool's notebook_id can be the alias'), which implies why an agent would create one, but gives no explicit when-to-use or when-not guidance relative to siblings, and no guidance on selecting among the four actions in the schema. Usage must be inferred.

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