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

With readOnlyHint=true already declaring safety, the description still adds substantial behavior: the four health states and their meaning, that reconnect_url is included when needs_reconnect, and platform-specific quirks (Telegram/Discord never sync analytics, X requires a workspace API key, Instagram's music_via_facebook, GBP locations). It stops short of stating ordering/pagination or empty-workspace behavior, so not a 5.

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?

Front-loaded correctly: purpose and when-to-use come first, per-field semantics after. It is dense — a single long paragraph packing several platform-specific exceptions — but nearly every clause carries decision-relevant information rather than filler.

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?

No output schema exists, so the description carries the full burden of explaining return values, and it does: health enum semantics, can_publish, can_sync_analytics caveats per platform, isActive/connection_status, music_via_facebook, locations, and reconnect_url. An agent can interpret the response and act on it without further tools.

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?

Only one parameter and schema coverage is 100%; the schema already explains workspace_id and points to list_workspaces. The description adds no further guidance on that parameter, which matches the baseline-3 expectation when the schema does the work.

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?

States a specific verb and resource ('Lists the platform connections ... attached to a workspace') and immediately enumerates what comes back (username, health status, capability flags). It is clearly distinguishable from siblings like list_workspaces, list_facebook_pages, or get_connect_link.

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 an explicit trigger ('Use this before create_post_draft or publish_now to see which platforms the user can actually post to') and routes two edge cases to alternatives: get_connect_link for unlisted platforms and for 'disconnected' connections. When-not/how-to-remediate is covered.

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