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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=true, so the safety profile is covered. The description's real contribution is the repeated emphasis on EXACT matching, which tells the agent partial strings will not match, but it never says what happens if both parameters are supplied or what a result record contains.

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?

Three short sentences, front-loaded with the lookup keys and the exact-match constraint. The final fragment is clipped and grammatically unclear ('ticket / get_tickets with a filter on...'), which costs a bit of precision but nothing is padded.

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?

Annotations cover safety and the schema is fully documented, so the basics are present. What's missing for a search tool with no output schema is whether it returns full ticket objects or summaries, and how it behaves with zero or two lookup values — the agent is left to guess.

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 limit, offset, subject and ticket_hash are already fully documented with bounds and an example hash. The description only restates 'exact' for the two lookup fields and adds no new semantics (no combined-filter behavior, no match precedence) — the baseline 3 applies.

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 (find tickets) plus the two exact lookup keys, with an example reference (VHD-218). It hints at sibling overlap with get_ticket / get_tickets rather than drawing a clean line between them, so the reader still has to infer why this tool exists separately.

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 line 'Give one of them' does tell the agent to supply ticket_hash or subject, which is real usage guidance since neither is schema-required. But the closing phrase 'ticket / get_tickets with a filter on ticket_hash or subject' reads as an equivalence statement rather than a 'use X instead when Y' rule, and no when-not condition is given.

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