create_pipeline_tool

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

No annotations are present, so the description carries the full burden. 'Create (trigger)' signals a side-effecting write operation, but it does not explain asynchronous triggering behavior, permissions needed, or downstream effects such as starting CI jobs.

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 front-loaded sentence with a clear verb and object, containing no filler or redundant details. This length is appropriate for a simple two-parameter tool.

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 small input schema, complete parameter documentation, and existing output schema, the description is nearly sufficient. It lacks only explicit side-effect and permissions caveats, which lower it from a perfect completeness score.

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?

The input schema already documents both parameters at 100% coverage, including 'ref' default 'main' and 'project_id' as a project ID or path. The description adds no additional parameter nuance, so the baseline score of 3 is appropriate.

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 action ('Create (trigger)') and the resource ('a new CI/CD pipeline'). It distinguishes this creation tool from sibling pipeline lifecycle tools such as retry_pipeline_tool, cancel_pipeline_tool, and delete_pipeline_tool.

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 word 'new' implies this is for triggering a fresh pipeline rather than retrying or canceling an existing one, but the description gives no explicit when-to-use or when-not-to-use guidance and does not name alternatives.

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