Read or change a Flow project's agent settings

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

With no annotations, the description carries the behavioral burden and does well: it discloses what the read returns, that changes set and return a result, that approval can only be set to 'always' because the credit budget depends on it, that instructions replaces all standing instructions, and that the operation is free. It omits authentication/permission requirements and whether image/video updates are partial or full replacements.

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 front-loaded around 'Without changes' and 'With changes', then packs return contents, constraints, and side effects into a compact paragraph with no filler. Every sentence supports correct invocation or safe use.

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?

With no output schema and no annotations, the description must carry most context, and it covers the read output at a high level plus key write constraints. It leaves gaps around auth, exact response shape, and partial-update semantics for nested image/video settings, so it is strong but not fully complete for a mutation tool of this complexity.

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 only 40%, so the description must compensate, and it partly does: it explains the approval constraint, replacement semantics for instructions, and gives examples for image count and video model. However, it does not clarify aspect choices, project_id semantics, or whether image/video nested objects are partial updates, leaving important parameter meaning to the schema.

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 a specific verb and resource: it returns the project's agent settings without changes, or sets them with changes, and enumerates the settings covered. It is clear this is a Flow project settings read/write tool, though it does not explicitly contrast with siblings such as flow_capabilities or flow_status.

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 gives clear usage context: inspect settings without changes, set them with changes, and use it to avoid surprises such as image count defaults or video model choice. It does not name alternative tools or state when not to use it, so it falls short of explicit when/when-not/alternatives guidance.

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