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

Annotations already declare readOnlyHint, idempotentHint, non-destructive and openWorld=false, so the safety profile is covered. The description adds genuinely new behavioral information by disclosing the return shape {id, title, text, url, metadata}, which matters because no output schema exists. It stops short of describing error behavior for unknown or malformed ids.

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 compact sentences that front-load the resource and then give the id formats and return shape. The Arabic/English duplication adds length without adding meaning, but nothing is padded or buried.

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 one-parameter, read-only lookup with no output schema, the description supplies everything needed: accepted id forms and the shape of the returned record. Annotations carry the safety profile, so no critical calling information is missing.

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% and there is only one parameter, so the baseline would be 3. The description earns above baseline by enumerating all four accepted id formats (tender:<reference_no>, agency:<id>, company:<id>, report:<YYYY-MM>), whereas the schema documents only the tender example. This meaningfully extends 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?

The description names a specific verb+resource: retrieving the full record for a single id, and enumerates the four id namespaces (tender, agency, company, report). That is far clearer than a bare 'fetch'. However, it does not distinguish itself from close siblings such as get_tender, agency_summary, company_summary and market_report, which appear to cover overlapping ground.

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?

There is no explicit statement of when to use this tool versus the many siblings, and no exclusions or prerequisites. The id-namespace list implies the tool is a generic lookup keyed by prefix, but the agent is left to infer that fetch is the general entry point rather than get_tender or agency_summary.

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