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

Annotations already declare this a safe read-only, idempotent operation, but the description adds substantial non-obvious behavior: postsLastSyncedAt is only set while imports have failed over an hour and the row stays connected, and the customer needs to do nothing. It further discloses that removal only takes effect when complete is true and failed is 0, and that files already used in posts/claims keep their references, which is exactly the kind of consequence an agent cannot infer from annotations.

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?

Purpose and the sibling routing are front-loaded, which is good, but the definition then runs long, and the per-reason remediation list (shortcut, unsupported_type, too_large, trashed) restates field-level detail that an output schema already carries. The dense run-on sentence listing lastSyncSummary counters is hard to parse for what is fundamentally a zero-argument list call.

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 listing tool with a rich drift-prone payload, the definition covers health/sync/failed-job scope, the social aggregation caveat, the CMS redirect, the full sync-count vocabulary, and the connect workflow end-to-end. An agent has everything needed to call it correctly and to act on the result.

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?

With zero input parameters there is nothing for the description to disambiguate, so the baseline applies. The added explanation of connectionId as the provider name reused by four sibling tools is useful context for chaining calls, though it describes the response rather than an input.

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 opening sentence names a specific verb and resource ("Lists integrations") and enumerates the concrete providers covered (Google, Search Console, GA4, Drive, analytics, CRM, email, Social publishing, website CMS). It then explicitly carves out the social-account case ("call list_channels for that") and the CMS case ("call get_website_cms"), so an agent can differentiate it from siblings without reading any 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?

Gives explicit routing rules: use list_channels for which LinkedIn/Instagram accounts are connected, use get_website_cms for CMS detail, and use get_connect_link then sync_connections when the goal is to connect. It also states connectionId is the identifier consumed by sync_connections, update_connection_settings, disconnect_connection and get_connect_link, which tells the agent how the output feeds the next tool.

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