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

Annotations declare readOnlyHint=false, destructiveHint=true and openWorldHint=false, so the safety profile is covered structurally. But 'Save' undersells what the destructiveHint implies — nothing says whether existing funnel events are replaced or merged, whether the ordering is validated, or what permissions are needed. The description adds little beyond the annotation layer.

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?

A single front-loaded sentence with zero filler. It is efficient, though the brevity is arguably part of the specification gap rather than a virtue.

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?

An output schema exists, so return values need not be described. However, for a destructive write tool with 0% parameter documentation, the description leaves mutation semantics, parameter meanings, and usage context unaddressed — inadequate for the complexity.

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 0% for 3 parameters. The description alludes to 'ordered' events (clarifying funnel_events is positional) but says nothing about product_name or the opaque connection_context token, whose required format is only discoverable from the regex.

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 description names a specific verb ('Save') and resource ('ordered funnel-event choices for one product'), which is clear enough to distinguish from generic products tools. It does not, however, differentiate itself from the sibling products_get_funnel_values, leaving the read/write split to be inferred from the name alone.

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 tool versus alternatives such as products_get_funnel_values, nor any stated prerequisites or workflow context (e.g., must funnel values be read first?). The agent gets no routing help.

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