create_traceability_link

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

With no annotations, the description carries the burden. It discloses that the tool creates a link and returns a success message with a link ID, and it lists allowed values for source_type, target_type, and link_type. However, it does not mention validation of source/target existence, idempotency, or any side effects beyond creation.

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 well-structured with clear sections for arguments, returns, and an example. Every part adds value, and it is not overly verbose for a tool with six parameters.

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?

The description provides all necessary information for an agent to invoke the tool correctly: parameter names, allowed values, return type, and an example. It lacks discussion of edge cases like duplicate links or error handling, but for a creation tool this is a minor gap.

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 0%, but the description fully compensates by explaining each parameter with format examples (e.g., 'SWR-001') and enumerating allowed values for type and link_type. The example usage reinforces correct invocation, making semantics crystal clear.

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+resource ('Create traceability link') and immediately provides the IEC 62304 standard reference, making the tool's purpose clear and distinct from sibling tools like create_requirement or generate_traceability_matrix.

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 implies usage by defining the link creation operation and the artifact types it connects, but it does not explicitly state when to use it over alternatives or mention any exclusions. The standard reference gives context, but there is no direct 'use when' guidance.

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