project_open

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

With no annotations, the description carries the full behavioral burden, and it does disclose one genuinely useful trait: a photo opens as a new unsaved document sized to the image. It says nothing about what happens to the currently open document, whether unsaved changes are lost, error behavior on a missing/invalid path, or whether a .json must be pedit-produced.

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?

A single tight sentence, front-loaded with the primary action and the secondary case in parentheses. Nothing is wasted, though the parenthetical aside is slightly crammed.

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 one-parameter file-opening tool with no annotations and no output schema, the description covers the input types and one side effect, but leaves open the fate of the current document and failure modes, which are the details an agent most needs before invoking it.

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% and the sole parameter 'path' has no schema description, but the prose indirectly clarifies what the path should point to (a pedit .json document or an image file), which is real semantic value. It still omits format details such as absolute vs relative paths or supported image extensions.

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?

States a specific verb (open) and the accepted resources (.json document or photo), which is enough to separate it from project_create and project_save. It does not, however, distinguish itself from the closely named sibling open_ui, so a small ambiguity remains.

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?

There is no when-to-use or when-not-to-use guidance and no mention of alternatives such as project_create for new documents or open_ui. The agent must infer from the sibling list when this tool is appropriate.

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