websex_browser_close

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

No annotations are provided, so the description carries the full burden. It does add useful lifecycle context ('real process lifecycle semantics', 'release Chromium resources'), signalling an irreversible teardown, but it omits whether the operation is idempotent, what happens on an invalid or already-closed session, and any permission requirements.

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 with the core action front-loaded; the second sentence adds differentiation value rather than filler. Minor waste in the vague 'engagement close' reference.

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?

An output schema exists so return values need not be described, but with no annotations and 0% parameter coverage this destructive lifecycle tool should say more about error behavior, idempotency, and prerequisites than it does.

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% for both required parameters, and the description says nothing about what engagement_id and session_id refer to or how they relate. An agent must infer that session_id identifies the target context and engagement_id scopes it.

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 (close) and resource (live browser context), plus the effect (release Chromium resources). It attempts sibling differentiation via 'unlike engagement close', but that referenced tool is not present in the sibling list, so the contrast is only partly useful; the actual siblings (browser_create, browser_get, browser_list) are not 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?

The phrase 'Close a live browser context' implies the context in which to use it (tearing down an active browser session), but there is no explicit when-not guidance, no mention of what to do if the context is already closed, and no pointer to the sibling that manages browser lifecycle.

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