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

The annotations already establish read-only, non-destructive behavior, and the description adds beta status, account eligibility, export limits, and the roughly 100k-character default size. These are meaningful behavioral details, though return structure is only loosely described.

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 purpose and key behaviors are front-loaded, with a compact beta/quota note. The long parenthetical catalog list is dense but earns its place by signaling the breadth of the guide.

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 read-only guide tool with no output schema, the description provides purpose, default behavior, narrowing parameters, beta/tier notes, and first-call guidance. The main remaining gap is precise documentation of the section and tool parameter semantics.

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 carry parameter meaning. It does explain that section returns one part and tool narrows schemas, plus the whole-guide default, but it does not clarify the twelve section enum values or the expected tool string format.

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 that this is the Video Director guide covering capabilities, creative catalog, producer workflow, and engine command schemas, and later says to call it first. This is clear, but it does not explicitly contrast itself against related siblings such as video_strategies or video_rules.

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?

Explicitly says to call video_guide first for the catalog, exact input schemas, and account tier notes, and explains default whole-guide versus section/tool narrowing. It gives clear usage context but no explicit when-not-to-use guidance or named alternatives.

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