get_current_cad_design

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

With no annotations, the description carries the burden. It discloses the tool is read-only via 'Read' and 'before modifying it', implying no side effects. However, it doesn't mention error behavior (e.g., missing file) or permissions, but for a simple read tool this is adequate.

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?

Description is appropriately short and front-loaded. It has a clear purpose sentence, a usage hint, and param/return docs. The ':param' and ':return' lines are somewhat formulaic but not bloated.

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 tool is simple with one parameter and an output schema. The description covers purpose, usage, and param meaning. It doesn't need to detail return format since an output schema exists. Adequate for its complexity.

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 has 0% description coverage, but the description adds a param doc: ':param jcad_path: The path to the JCAD file.' This gives meaning beyond the schema's bare title 'Jcad Path'. It's minimal but sufficient for a single string 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?

Description clearly states the tool 'Read the current content of a JCAD (JupyterCAD) document', using a specific verb and resource. It distinguishes from sibling tools which are all mutating or transformation operations (add, remove, cut, fuse, etc.).

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?

Explicitly advises 'Use this tool to understand the current state of a JCAD file before modifying it', giving clear when-to-use context. It doesn't mention when not to use it or name alternatives, but the sibling list makes alternatives obvious (mutating tools).

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