Create Project Backup

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

Annotations already declare that the tool writes but is not destructive, and the description adds meaningful behavioral details: backup is 'collision-safe' and 'byte-verified,' and the source project is neither opened nor modified. These details go beyond the annotations, though no auth requirements or output naming conventions are mentioned.

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 no filler. Every clause (collision-safe, byte-verified, no source modification) earns its place by adding a distinct constraint.

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?

An output schema exists, so return values need not be described. For a one-parameter tool with clear annotations, the description is largely complete, though it could specify the backup file naming or exact location ('beside' is slightly vague).

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% and the schema already describes project_path as a path to an existing .prproj file. The description implies the path points to a project but adds no syntax, format, or constraint details beyond what the schema provides, so baseline 3 applies.

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 verb and resource ('Create a ... backup'), and the scope is precise ('beside an existing .prproj file without opening or modifying the source project'). It distinguishes this tool from save_project/save_project_as siblings by explicitly ruling out opening or modifying the source.

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 gives clear context for when this tool is useful (creating a safe backup of an existing project file), but it does not explicitly name alternatives such as save_project_as or export_as_project. Usage is implied rather than contrasted against siblings.

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