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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description goes beyond that by explaining the classification semantics of the result (ready vs missing vs no_mcp) and the follow-up advice to give the user, which is genuine behavioral context. It does not, however, describe any limits or failure modes of the comparison itself.

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?

Roughly four dense sentences, front-loaded with the trigger condition and the core comparison action before the outcome guidance. The colon-heavy phrasing ('no_mcp lists tools with no MCP server (websites like G2): nothing to connect...') is slightly packed but each clause carries actionable content.

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?

With an output schema present, the description need not explain return values, and it still covers trigger conditions, exclusions, and interpretation guidance for each result category. Combined with full schema coverage and non-destructive annotations, an agent has everything needed to call it correctly.

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 100%, with both 'ref' (kit reference with example) and 'connected' documented in the schema. The description only adds that names or ids may be passed for 'connected', which is marginal extra value, so the baseline of 3 is appropriate when the schema does the heavy lifting.

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 states a specific verb and resource: compare a kit's declared tools (get_kit's tools) against the tools/MCPs the agent has connected, and report readiness. It implicitly distinguishes itself from get_kit and search_kits by naming the former as the source of the tool list, so an agent can route between them without opening the schema.

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?

It states exactly when to run it ('when a kit lists tools... before start_run or applying it') and when not to ('Not needed for a kit without tools'), plus what to do with each outcome class: ✅ ready, ⚠️ missing MCP with alternatives and connection steps, and no_mcp tools that need no connection. Alternatives and exclusions are explicit.

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