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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds real context beyond that: the data comes from a project change feed file (exports/changes.json) and results are newest first, which tells the agent the feed is derived, not live. It does not define what 'lately' means (no window), nor mention truncation beyond the schema's limit cap.

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 the subject (the records), the ordering, and the source all front-loaded; nothing is padding. The parenthetical file path is dense but earns its place by identifying provenance.

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 four parameters, 25% schema coverage, and no output schema, the description needs to carry more weight than it does. It never explains ref, source_id, or what a change record contains, and 'lately' leaves the recency window undefined for an agent deciding whether the feed is fresh enough.

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 only 25%: just 'repo' is documented as owner/name of a public GitHub repo. The description does not explain ref, limit, or source_id at all, so three of four parameters carry no meaning in either the schema or the description. The phrase 'public gleanyard project' reinforces the repo constraint but adds nothing for the rest.

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 resource (records added, changed or removed in a public gleanyard project) and a specific source (the change feed at exports/changes.json), with ordering stated as newest first. An agent can tell this is a recency feed rather than a search, but the description never names the siblings it differs from (search_records, project_status).

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 explicit when-to-use statement and no mention of alternatives, even though search_records and project_status are close siblings. The words 'lately' and 'newest first' only weakly imply a browse-the-recent-feed use case; nothing tells the agent when to prefer search_records instead.

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