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

With no annotations, the description carries the full burden for behavioral disclosure. It only says what the tool retrieves, but does not mention whether this is a read-only operation, how errors are handled, whether authentication is needed, or any other side effects or constraints. The tool name and description imply a read operation, but this is not explicitly stated.

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 concise (one sentence plus a usage clause), front-loads the core action, and avoids unnecessary wording. It could be slightly more structured to include parameter details, but the length is appropriate.

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 there are 5 parameters, no output schema, and no annotations, the description is incomplete. It does not explain what each parameter means, what the return value looks like, or how this tool differs from other dependency-related tools. A single sentence cannot adequately guide an agent in invoking 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 description coverage is only 20% (only the context parameter has a description). The descriptive text mentions 'between two entities' hinting at callerTag and calleeTag, but it does not explain the role of the path, method, or context parameters. The description fails to compensate for the lack of schema documentation.

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 uses a specific verb ('Get') and clearly identifies the resource ('specific dependency details between two entities') and the content (method, path, metadata). This distinguishes it from sibling tools like listDependenciesForEntity, which list all dependencies rather than a single detailed relationship.

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 states it is 'useful for understanding the nature of the relationship, API contracts, and communication patterns between services', which implies when to use it. However, it does not explicitly contrast with alternative tools, mention prerequisites like having caller and callee tags, or provide any when-not-to-use guidance.

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