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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is covered. The description adds the content scope (products plus funnel/MMP event sources) but discloses nothing about pagination, ordering, or how the cursor iterates, so it is only marginally above the annotation baseline.

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?

It is a single front-loaded sentence with no waste, but the extreme brevity edges into under-specification rather than genuine conciseness given the tool's three undocumented parameters and pagination behavior.

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, but with zero parameter documentation, no usage guidance, and no pagination disclosure, the definition is markedly incomplete for a list tool with a filtering parameter.

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% across all three parameters (limit, cursor, channel_pid), and the description adds no meaning for any of them. In particular, channel_pid's filtering semantics are entirely unexplained, leaving the agent to guess how results are scoped.

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 uses a clear verb ('List') and names the resources ('products and funnel/MMP event sources'), which distinguishes it from the products_get_* siblings that retrieve single focused artifacts. However, the compound object ('products and funnel/MMP event sources') is slightly ambiguous about whether it returns two result types or one merged set.

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 when-to-use guidance and no named alternative among the many sibling tools (e.g., products_get_actions, products_get_funnel_values). The agent must infer the tool's role purely from its name and the one-line purpose.

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