name_session

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It states the visible effect (shown in UI) but doesn't disclose whether this affects tab claims, filtering, or any backend behavior. The connection between session name and tab ownership/claiming isn't clarified given the presence of 'claim_tab' among siblings.

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, clear sentence that fully conveys the tool's purpose with zero wasted words. The parenthetical mention of where the name is displayed is efficient and adds context without bloat.

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 simple single-parameter setter with 100% schema coverage and no output schema, the description is mostly adequate. However, given the complexity of the sibling tool ecosystem (many browser management tools), a brief note on whether the session name affects operations like claim_tab or list_tabs would improve completeness.

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 description indicates the parameter represents a display name. However, it only says 'Short session name' in the schema and the description doesn't add format constraints, length limits, or character restrictions that would enhance agent understanding beyond what the schema states.

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 clearly states the verb (Set), resource (browser session name), and where it's displayed (Codex/Chrome UI), making the tool's purpose unambiguous. It doesn't explicitly distinguish from siblings, but given the sibling list contains browser control tools, the session-naming purpose is clearly differentiated by its unique resource scope.

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?

No guidance on when to use this tool versus alternatives. The naming purpose is implicit but there's no statement about when naming a session is appropriate or helpful. Among many browser tools, there's no contextual framing for why one would set a session name.

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