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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint and destructiveHint=false, so the safety profile is covered. The description adds genuinely new behavior: results are ordered newest first, and each run carries new/changed/removed entity sets plus the dataset version. It stops short of describing pagination semantics or volume, which the schema partially covers.

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 sentence with zero filler; the resource and the ordering constraint are front-loaded before the return payload. Nothing is repeated from the title or schema.

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?

There is no output schema, so the description carries the burden of return shape and does so compactly by naming the three entity buckets and the dataset version. What is missing is minor: no note on whether deltas are cumulative per run or how pagination interacts with the newest-first ordering.

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 coverage is 100%, so page, page_size and feed_id are already documented, making 3 the baseline. The description adds only the ordering context ("newest first"), which is relevant to interpreting page numbers but does not explain the parameters themselves.

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 specific verb ("Read") and a precisely scoped resource ("the feed's runs"), and adds ordering ("newest first"). That clearly separates it from alterlab_feed_list/create/update/delete, though it never names a sibling to reinforce the distinction.

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?

Usage is implied by the resource-and-return framing: an agent can infer this is the tool for inspecting what changed in a feed's runs. There is no explicit when-to-use, when-not-to-use, or pointer to an alternative such as alterlab_feed_list for enumerating feeds themselves.

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