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

Annotations already declare readOnly, idempotent, non-destructive and openWorld, so safety is covered. The description adds genuinely useful behaviour the annotations cannot: a guaranteed ascending sort order, limit-based paging, and the cursor-reuse contract (next_after_id used as after_id). It omits error/expiry behaviour of the cursor, so not a 5.

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?

The selection rule and ordering are front-loaded, and the endpoint is tucked at the end. It is a single dense sentence-chain; every clause carries information, though the pagination and cursor clauses could be split for readability.

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 no output schema, the description still names the key return field (next_after_id) and its role, which is what an agent needs to paginate. The include_contact flag effect is only in the schema, but that is acceptable given full schema coverage.

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 the baseline is 3. The description goes beyond the schema by explaining that next_after_id from a prior response should be fed back as after_id, and that paging is controlled by limit — adding value the per-field descriptions do not convey.

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 states a precise verb and resource with scope: transactions with an id greater than the given one, ordered by id ascending. This distinguishes it cleanly from siblings like qgiv_list_transactions_by_date and qgiv_list_recent_transactions, which use different selection criteria.

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?

It gives a clear context of use ('Handy for syncing new gifts') which implies the incremental-sync scenario versus date-window or recent-list siblings. It stops short of explicitly naming an alternative or a when-not-to-use condition, so it does not reach a 5.

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