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

Beyond the readOnlyHint annotation, the description discloses a critical auth requirement (MCP-service page 'Техническое задание · Контракты' connected by a КРАСОФТ manager, otherwise refusal) and a response behavior (first page contains Aggregates over the entire selection). This is meaningful behavioral context not present in the annotations.

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 purpose is front-loaded and the sentence is information-dense with no filler. The long list of row fields is justified because it defines what a 'position' means; the access note is a distinct final sentence. Slightly overloaded but efficient.

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 does enough to sketch the return semantics: one row equals a contract TZ position with the source notice TZ item and the listed attributes, plus aggregate results on the first page. Combined with a fully described schema, this gives an agent most of what it needs, though it omits explicit alternative routing and pagination behavior beyond first-page aggregates.

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 the schema already documents all 18 parameters. The tool description adds no parameter-specific guidance beyond restating the kind of fields returned in each row, so it stays at the baseline without compensating for any schema gaps.

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?

Description opens with a clear Russian purpose: search across positions of technical specifications (ТЗ) of concluded contracts, and defines the output row composition. The resource is specific enough to separate it from tender-side and contract-spec siblings, though it does not name an alternative tool explicitly.

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?

No guidance on when to prefer this tool over sibling tools such as search_tender_tech_specs or search_contract_specs. It only states the search domain and an access prerequisite, leaving selection logic to the agent.

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