Update product feed

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

Annotations already declare readOnlyHint=false, destructiveHint=false, and openWorldHint=true, so the safety profile is partly covered. However, the description adds zero behavioral context: it does not say what fields are mutable, whether omitted fields are preserved or cleared, or what happens on an unknown feed_id.

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 short sentence, but that brevity comes from under-specification rather than efficiency. The one sentence is a restatement of the name and does not earn its place.

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?

This is a mutation tool with a nested data object, 50% schema coverage, and no output schema. Nothing covers required permissions, partial-update behavior, or return values, so an agent cannot call it correctly with confidence.

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 only 50%: feed_id has no description at all, while the nested data object does list its fields (name, url, username, password, mode, schedule). The description contributes nothing to compensate, leaving the identifier parameter and update-semantics unexplained.

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 restates the title almost verbatim: 'Update a product feed.' It names a verb and resource but adds nothing that distinguishes it from siblings such as reddit_ads_update_product_set, reddit_ads_update_catalog, or reddit_ads_create_product_feed. This is effectively a tautology.

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, no prerequisites, and no mention of alternatives or when-not-to-use. An agent has no basis to choose it over any other update tool in the family.

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