open_in_studio

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

Annotations mark this as non-read-only but non-destructive, and the description usefully adds that it does not synchronize or replace unsaved GUI state — a real side-effect boundary that the hints alone don't convey. It still omits anything about permissions, whether opening changes server-side state, or what happens if a Studio session is already open.

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?

Two tight sentences, action first, caveat second, with no filler. Every clause carries information the agent needs.

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 key behavioral nuance (no GUI-state replacement) is covered and no output schema exists to explain, but with zero parameter documentation the agent lacks enough to know what revision to pass or what a successful launch returns.

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 0% and the description mentions neither project_id nor revision, so the agent gets no help on the meaning of "revision" or what a null revision defaults to. With two parameters entirely undocumented in both schema and prose, the description fails to compensate.

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?

Specific verb ("Launch") plus a specific resource ("the saved revision in Studio"), so the action is unambiguous. It only partially differentiates itself from siblings such as restore_revision or open_project; the negative clause about GUI state helps but no sibling is named.

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?

"for review" implies the intended context, and the second sentence sets a boundary (this is not how you push or replace GUI state). However, it never says when to prefer this over restore_revision, open_project, or inspect_project, leaving the routing decision to inference.

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