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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so the safety profile is covered by structured data. The description adds real value beyond that by stating the credential boundary explicitly ("Never returns OAuth tokens or secrets"), which is the key behavioral concern for an integrations enumeration tool. It stops short of describing freshness of the connection state or whether live re-checks occur.

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 purpose is front-loaded in the first clause, before the provider inventory and the exclusion note, which is the right ordering. The long parenthetical provider list is dense but earns its place by telling the agent which systems are in scope; it could be trimmed without losing much.

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, return shape needn't be explained, and with zero parameters there is no parameter burden, so the description covers the remaining ground well. The one gap is the lack of differentiation from get_integration_status and sync_integration, which matters given how many integration-related siblings exist.

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 nothing for the description to disambiguate and the baseline of 4 applies. The provider list in the description serves as scope documentation rather than parameter semantics.

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?

Opens with a specific verb and resource ("Lists CRM integration connection state") and then enumerates the covered providers and their audience switchers, so the agent knows exactly what scope it gets. It also names a boundary against a distinct MCP ("Does not create integration web pages; those belong to the Sendblox Website MCP"), which removes a plausible misfire.

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 excludes one adjacent capability (creating integration web pages) and attributes it to another server, which is genuine when-not-to-use guidance. However, it gives no guidance on how to choose between this tool and the close siblings get_integration_status or sync_integration, which are the more likely sources of confusion.

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