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

Annotations already declare readOnlyHint, idempotentHint and destructiveHint=false, so the safety profile is covered; the description adds value beyond that by disclosing the polling workflow and that pagination metadata is included. It does not mention rate limits or how large a result set can be, which matters for a polled list endpoint.

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 with zero filler: the first covers the return payload, the second the usage trigger. Front-loaded and every clause earns its place.

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 needn't be spelled out, and the annotations carry the safety profile; the description still covers purpose and the polling use case. The one unaddressed point is that pagination metadata is returned with no corresponding input parameter, leaving the agent unsure whether it must page or always receives the full set.

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 and schema description coverage is 100%; the schema itself explains projectId and where to obtain it (workflow result or list_projects). The description adds no syntax, format, or filtering semantics beyond that, so the baseline 3 for schema-covered parameters applies.

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?

States a specific verb and resource (return remix actions for a project) and enumerates what each action record contains (ids, types, status, progress, attempts, errors), so the agent knows exactly what it gets. However, it never differentiates itself from the other readiness-oriented sibling get_project_export, which an agent could plausibly confuse for the 'edits ready for export' check.

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?

Second sentence is a genuine routing cue: poll after remix_project to learn when edits are ready for export. That answers 'when do I call this' clearly. It stops short of stating when NOT to use it (e.g., use get_project_export for export status, or list_tool_executions for other async work).

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