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

Annotations already declare readOnlyHint=true and destructiveHint=false, so no contradiction exists. The description adds useful behavioral context: this returns link/steps rather than performing the install, data stays local, and unsupported OSes are routed to a waitlist. That is sufficient for a read-only helper.

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 front-loaded with the deliverable, then provides context, usage intent, and parameter guidance. Every sentence carries distinct information, and there is no filler or repetitive restating of the title.

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 read-only setup tool with full schema coverage and an output schema, this is complete. An agent can determine the required os, optional fields, and supported-versus-waitlist behavior without further investigation. The only real ambiguity is sibling overlap, which is a usage-guideline concern rather than a completeness 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?

Schema coverage is 100%, so the baseline is 3. The description adds real meaning for the key parameter os by distinguishing real install steps from waitlist behavior, and it names the optional parameters email, step, and issue, helping an agent understand why to pass them.

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 a specific deliverable: a personalized LMCP install link and setup steps. It also names the platforms and the install/reconnect use case. However, it does not explicitly differentiate from the overlapping sibling lmcp_install_upgrade, so an agent must infer the boundary between these tools.

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 description explicitly says when to invoke this tool: to install LMCP or reconnect it, and it clarifies OS-specific behavior (macOS/Windows get real steps; Linux/mobile go to a waitlist). It does not name alternatives or exclusions such as lmcp_install_upgrade, which keeps it from a 5.

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