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

Annotations already declare readOnlyHint=false and destructiveHint=true, so the agent knows this touches state. The description adds the important nuance that it only 'proposes' rather than committing, which is genuine context beyond the annotations. But it leaves the tension unresolved: it never says whether the item stays open until confirmed, who can confirm, or what irreversible effect eventual dismissal has.

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?

Two short sentences with zero filler, and the core 'Propose' qualifier is front-loaded. The trailing 'Proposes only' is a deliberate emphasis rather than redundancy, though it slightly duplicates the opening verb.

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?

For a simple two-parameter tool with no output schema, the description covers the essentials of what it does. It is still incomplete about the proposal lifecycle — no return semantics, no confirmation path, and no indication of what state the open item is left in — which matters for a destructive, non-read-only operation.

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%, so the description must carry the parameter meaning. It does explain the two status values (resolved vs dismissed) in prose, which covers the enum parameter, but open_item_id is only implied by its name and the schema default for status is never mentioned.

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 verb+resource: 'Propose resolving (or dismissing) an open item', which is clearly distinguishable from create_open_item and list_open_items. It stops short of explicitly contrasting itself with siblings, but the action and target are unambiguous.

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?

'once it's handled' supplies a precondition for calling, and the parenthetical implies a resolved-vs-dismissed choice. However, there is no statement of when NOT to use it, no mention of how the proposal is subsequently confirmed (e.g. via confirm_change/discard_change), and no guidance on what happens if one is already pending.

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