import_asset_to_project

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

With no annotations, the description carries the full behavioral burden and does disclose real traits: the local=true restriction, the required shape of project_dir, and the non-obvious side effect of installing a bundled UPM package as an embedded package in <project>/Packages/<name>/. It does not mention overwrite/reversibility or permissions, so it is not exhaustive.

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 sentences, front-loaded with the core action and constraint. The embedded-package sentence is dense but adds genuinely useful behavior rather than restating the schema, so little is wasted.

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-value explanation is unnecessary, and the description still flags embedded_packages as a notable output signal. For a write tool with no annotations, it should ideally note overwrite behavior or failure modes, but the essentials for correct invocation are present.

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 0%, so the description must compensate, and it does: project_dir is explained as the project root (the folder containing Assets/), and asset_id is tied to the local=true tagging rule. The two parameters are semantically covered, though asset_id format is not specified.

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 gives a specific verb and resource: unpack a locally-downloaded .unitypackage directly into a Unity project's Assets/ folder. It implicitly separates this from the discovery siblings by noting that search comes first, so an agent can tell it apart from search_owned_assets and get_asset_details.

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 states an explicit precondition (only assets tagged local=true) and routes the agent to check with search first, which maps to the search sibling. It does not state when NOT to use it or what happens on a non-local asset beyond 'only works', leaving a small gap.

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