check_extension_and_setup_status

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

Without annotations, the description carries the full burden. It discloses an important side effect—automatically opening a setup wizard in Chrome if the extension is missing or the password is not configured—which is valuable behavioral context. However, it does not state whether the check is read-only otherwise, whether it is safe to call repeatedly, or what the response looks like.

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?

The description is two sentences: one enumerating the checks and one describing the automatic wizard behavior. It is front-loaded and reasonably efficient, though the first sentence packs multiple concepts together.

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 no-parameter check tool with no output schema, the agent needs to know what status information is returned and how to interpret it. The description covers what is checked and the fallback wizard, but omits any indication of the return format or result structure, leaving a meaningful gap.

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?

The tool takes zero parameters, so there is no parameter semantics to explain. Baseline 4 applies.

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 lists specific checks: whether Chrome is open, the extension is installed/ready, the school password is set up, and the current course identity status. It uses a clear verb ('check') and names the resources, though it does not explicitly contrast itself with closely related siblings like verify_extension_mcp_sync or ensure_chrome_eeclass_session.

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?

Usage is implied by the diagnostic nature of the tool, but there is no explicit statement of when to call it versus alternatives, nor any exclusions. An agent must infer that this is a preflight or troubleshooting tool.

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