open_project

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

Annotations already declare readOnlyHint=false, destructiveHint=false, and idempotentHint=false, but the description adds no behavior beyond the verb — notably it never says whether opening replaces the current in-session state, whether an already-open project is discarded, or what happens if the path is invalid. With no disclosure of state effects for a non-idempotent mutation, the added value is minimal.

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?

One front-loaded sentence with no wasted words, and the GUI-edited parenthetical is useful context. However, the brevity comes at the cost of substance rather than being maximally efficient.

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?

No output schema exists, so the description must carry the burden of explaining the result of opening a project and the effect on current state — it does neither. For a state-mutating loader with 0% parameter documentation, the one-line description leaves real gaps.

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%, so the single 'path' parameter is undocumented in both the schema and the description. The description only implies it points to a .lazyroom file; it says nothing about relative vs absolute paths, whether the file must exist, or whether a .lazyroom extension is enforced.

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 resource ('saved .lazyroom project'), and the file-type qualifier implicitly distinguishes it from the sibling open_image, which handles raw images rather than project files. It stops short of explicitly naming that sibling, so it is not a 5.

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 parenthetical 'one a human edited in the GUI' hints at the scenario (reloading externally modified work), which implies when to use it. But there is no explicit statement of when to prefer open_project over open_image, save_project, or get_project_state, and no prerequisites given.

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