set_project_path

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

No annotations are provided, so the description must carry the full burden. It only says 'Sets the active Xcode project' without disclosing side effects such as persistence, effect on subsequent tool calls, validation behavior, or that openInXcode and setActiveDirectory flags alter behavior. This is minimal at best.

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, clear sentence that is front-loaded with the primary action. There is no redundant or filler content; every word contributes to the core purpose.

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?

For a simple state-setting tool with full schema coverage, the description is adequate but not complete. It misses usage context and behavioral side effects, but the tool's simplicity and parameter documentation prevent it from being severely incomplete.

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 100%, so the baseline is 3. The description adds no additional parameter meaning beyond what the schema already provides; it merely restates the core purpose using the projectPath parameter.

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 states a specific action ('Sets the active Xcode project') and the means (path to .xcodeproj directory). It clearly distinguishes from sibling tools like get_active_project, detect_active_project, and set_projects_base_dir by focusing on setting the active project.

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 when one needs to set the active Xcode project, but it does not explicitly state when to use it versus alternatives such as set_projects_base_dir, nor does it mention prerequisites or exclusions. The guidance is present only by implication.

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