enable_lb_pool_member

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

Annotations already declare readOnlyHint=false, destructiveHint=false, and idempotentHint=false; the description reinforces the write nature and adds genuinely new context — the confirmation output and the fact that this does not add a member that isn't already present. It leaves the non-idempotent annotation unexplained, which is a minor gap for a tool an agent might expect to be repeatable.

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-loads the [WRITE] tag and the action, then adds three short sentences that each carry information (return shape, prerequisite tool, precondition). No filler or redundancy.

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 details need not be elaborated, and the safety profile is covered by annotations plus the description's precondition. For a two-parameter mutation with full schema coverage, nothing needed to invoke it correctly is missing.

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%, and the 'pool' parameter's schema text is unusually rich (literal matching, refusal of unknown names, not inferable from VS names), so the schema carries most semantic load. The description only adds the pool-membership constraint on 'server', which is baseline-appropriate given full coverage.

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 (Enable), resource (pool member), and effect (so it receives traffic again), immediately distinguishing it from the sibling disable_lb_pool_member. The '[WRITE]' prefix signals mutation type up front, so an agent knows exactly what class of action this is.

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 pre-call sequencing ('Use list_lb_pool_members first to verify the server IP') and a strong precondition ('The server must already belong to the pool — this adds nothing'). It does not explicitly name disable_lb_pool_member as the inverse or state when-not-to-use, but the routing guidance is otherwise clear.

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