platform_project_builder

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

No contradiction with annotations: 'creates and changes' aligns with readOnlyHint=false and destructiveHint=false. The description adds some context beyond the annotations—the registry/envelope abstraction and the 'authoritative live' readiness inspection—but stays abstract and does not disclose specifics like reversibility, effect scope, or what 'changes' entails.

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, fairly compact, with the primary 'creates and changes' behavior front-loaded. However, phrasing is jargon-dense ('domain-neutral project-building contract', 'authoritative live project dependencies/readiness'), which hurts readability without adding much clarity for a fixed word budget.

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 three-branch oneOf builder with an output schema, the description conveys the abstraction model and provider extension plan, but remains vague about the actual change semantics and doesn't map the branches to agent decisions. A complex multi-action tool warrants more concrete guidance than this provides.

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 coverage is 100%, so the oneOf branches and action consts carry the parameter semantics. The description adds value by mapping natural-language actions (describe/inspect/plan) to the schema's action values, but provides no syntax or format detail beyond the headroom the schema already gives.

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 states the core verbs—'creates and changes projects, agents, tools, configuration, versions, and deployments'—and lists the specific sub-actions (describe, inspect, plan) that match the schema's action consts. However, it is abstract ('domain-neutral project-building contract') and does not differentiate from siblings like platform_project_builder_operations or platform_projects, so the agent gets the resource but not the distinguishing boundary.

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 explicit when-to-use vs when-not-to guidance. The only usage-ish signal is 'Workflow is the first provider,' which hints at provider context but offers no exclusions or comparisons to the many platform_* siblings. The three action branches are implied rather than tied to scenarios.

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