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

With no annotations, the description carries the full burden and does exceptionally well: it discloses side effects (allocates a view id, binds the MCP session), limitations (does not persist CALC outputs or FORMULA edges), and the primary return value (viewUrl). This is strong behavioral detail for a mutation tool.

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 description is compact and front-loaded: the core action comes first, followed by id allocation, the seed list, the persistence caveat, and the UI link. Every sentence earns its place and there is no filler.

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 tool with no output schema and no annotations, the description covers a lot: purpose, optional parameters, key output, a persistence limitation, session binding, and a UI reference. It stops short of documenting the full response shape beyond viewUrl and detailed seed structures, but it is reasonably complete for a create action with zero required parameters.

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?

The description enumerates all the optional seed categories, matching the 11 schema parameters and clarifying they are optional. However, schema description coverage is only 36%, and the description does not define the structure or allowed contents for most arrays (axes, streams, chains, parameterSets, etc.), leaving agents with names but not enough syntax detail.

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 opens with a specific verb and resource: 'Create a Model project in MySQL (parameter register)'. It also states the key output (viewUrl) and the optional seed payload, making the tool's role clear and distinct from roadflow/artifacts creation siblings.

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 create semantics clearly indicate when to use this tool versus model_get, model_patch_project, model_discard, and related update/query tools. It does not explicitly name alternatives or exclusion conditions, but the context is clear enough for an agent to select it for creating a new Model project.

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