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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, and openWorldHint=false, so the safety and side-effect profile is fully covered without description help. The description adds a small amount of behavioral context by signaling that the response pairs the integration with its last sync, but says nothing about staleness, auth scopes, or failure modes. Added value over annotations is thin.

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?

Six words with no waste, but this is under-specification rather than conciseness — the fragment is not front-loaded with an action verb and gives the agent almost no anchor. It earns its place only marginally.

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?

There is no output schema, so the description carries the full burden of explaining return values, yet it never enumerates the fields returned beyond alluding to a last-sync timestamp, nor describes not-found behavior. For a simple single-record read this is a material 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?

Single parameter with 100% schema coverage ("Integration id"), so the schema already carries the burden; baseline 3 applies. The description does not clarify whether the id is a UUID, slug, or provider key, nor what happens with an invalid id.

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?

"One connected tool and its last sync" is a noun fragment that largely restates the name/title (get integration → one integration) rather than stating a verb+resource action. The one piece of added information, "its last sync," hints at what is returned, but an agent gets no explicit statement that this fetches a single integration by id.

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?

There is no guidance on when to use this versus list_integrations, update_integration, or connect_integration, all of which appear in the sibling list. No prerequisites, no error/not-found behavior, no indication of whether this is for polling sync status.

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