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

Annotations already declare this is a non-readonly but non-destructive mutation. The description adds real behavioral value beyond them: it discloses the side effect of injecting S3_* environment variables and the consequential requirement to redeploy. It stops short of covering auth/permission needs or reversibility (which detach implies).

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 tight sentences, front-loaded with the core action and mechanism, then the redeploy constraint. Every clause carries information; nothing is 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 two-parameter mutation with safety annotations and no output schema, the description covers the mechanism and the key downstream consequence. It is largely complete, missing only param details and edge cases like deployment state prerequisites.

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% and the description provides no meaning for bucketId or deploymentId beyond their self-evident names. With two undocumented required parameters, the description fails to compensate for the coverage gap.

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 — 'Expose the bucket to a deployment' — and goes beyond the name by naming the concrete mechanism (S3_* env var injection). It is clearly distinguishable from sibling attach/detach tools by resource pairing, though it does not explicitly name the inverse (nexusai_bucket_detach).

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?

Usage is implied by the action ('expose bucket to a deployment') and it notes 'Requires redeploy', which is a useful prerequisite. However, it never states when to prefer this over nexusai_bucket_detach, nexusai_volume_attach, or nexusai_managed_db_attach, nor any exclusion conditions.

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