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

The description adds useful behavioral detail beyond the annotations, namely that each dependency entry includes the repository URL, and that OCI registries are supported. This helps an agent understand the output shape and input compatibility. The readOnlyHint and openWorldHint annotations are already present, and the description does not contradict them.

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 only two sentences, front-loading the core purpose, then giving actionable insight about dependencies and protocol support. Every sentence earns its place with no filler or redundant restating of the tool name. It is concise without sacrificing relevant detail.

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?

Given that the tool has a full input schema, annotations for read-only behavior, and an output schema, the description provides exactly the missing context: dependency semantics and how to use the returned URLs. The workflow is sufficiently complete for an agent to select and invoke this tool correctly.

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 schema already fully documents chart_name, chart_version, and repository_url. The description adds workflow context about feeding returned URLs back into other tools, but it does not add parameter-level semantic meaning beyond what the schema provides. This matches the baseline of 3 for complete schema coverage.

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 opens with a specific verb-resource pair, 'Get chart dependencies (sub-charts),' which clearly identifies the tool's function. It also differentiates this tool from sibling tools like get_values or get_versions by focusing on dependencies rather than values or versions. No ambiguity remains about what the tool operates on.

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?

The description provides clear workflow context by telling the agent to feed the returned repository URLs back into search_charts, get_versions, or get_values. It also notes protocol support for HTTP/HTTPS and OCI, which helps determine valid inputs. It does not explicitly state when not to use this tool or give exclusions relative to siblings, but the implied context is strong.

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