List recently modified tickets

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

Annotations already declare readOnly=true, idempotent=true, destructive=false and openWorld=true, so the safety profile is fully covered structurally. The description adds the semantic distinction between the two modes (modification-date vs status-change), which is genuinely useful, but says nothing about pagination behavior, output size, or result ordering.

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 tight sentences with no filler, and the primary filter semantics are front-loaded ahead of the usage example. The parenthetical mode names are slightly clipped, but nothing is wasted.

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 six parameters, no output schema, and a 'full' flag that dramatically changes payload size, the description does enough to orient the caller but omits output shape, the summary-vs-full tradeoff, and pagination defaults that an agent must read from the schema. Adequate, not complete.

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 100%, so every parameter including the mode enum and the 'since' UTC/ISO constraint is already documented in the schema; baseline 3 applies. The description restates the mode default and that 'since' applies to last_modified, but adds no format or interaction detail beyond the schema.

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?

States a specific verb and resource ('Tickets modified since a date ... or whose status changed') and names the two filtering modes, so the agent knows exactly what population is returned. However, it never distinguishes itself from the sibling list_tickets tool, which an agent must otherwise infer means 'all tickets regardless of modification'.

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?

The phrase 'Good for "what happened today / since Monday"' gives an implied use context, which is more than nothing. But it names no alternative (list_tickets, get_ticket) and gives no exclusions or prerequisites, leaving the agent to guess when this beats the plain ticket list.

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