patchPlanRelationships

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

No annotations are present, so the description carries the full burden. It only says 'Updates' without disclosing whether it replaces or merges relationships, or how existing relationships are affected. The behavior of the 'patch' operation is not clarified.

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 a single sentence, which is too brief for a complex tool with 4 parameters, nested objects, and a oneOf constraint. It lacks necessary details and could be better structured.

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 the complexity (nested schema, oneOf, many resource types) and no output schema, the description is severely incomplete. It does not explain the update semantics, expected behavior, or error handling. An AI agent would lack critical context to use 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 each parameter has a description. However, the schema description for 'requestBody' is ambiguous ('The Work Item(s) body') and the tool description does not clarify the format or the meaning of the oneOf construct. The tool adds no value beyond 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 clearly states the verb 'updates' and resource 'Plan Relationships'. It distinguishes from sibling tools like postPlanRelationships (create) and deletePlanRelationship (delete). However, it does not specify whether it updates a single relationship or a list, though the name suggests multiple.

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?

No guidance on when to use this tool versus alternatives (e.g., create, delete, or other patch tools). No prerequisites or context about required permissions or constraints are provided.

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