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

Annotations already declare readOnly, idempotent, non-destructive and closed-world, so the safety bar is met. The description adds real behavioral context beyond them: 'No AI, no cost' (deterministic, free) and that the rule set is country-dependent ('for the CV's country'). It does not describe the shape of the returned flags or links.

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 sentences, front-loaded with the action, with cost and timing pushed to the end where they belong. The colon-embedded flag list makes the middle clause dense, but every sentence carries information an agent can act on.

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 read-only, two-parameter tool with full schema coverage and no output schema, the description covers purpose, cost, scope and timing adequately. The one gap is return shape — an agent cannot tell whether it gets a boolean, a flag list, or links, though 'flags details such as...' hints at a findings list.

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%, so cvId and the locale enum are already fully documented in the schema. The description contributes only the implicit notion of a country-sensitive check and never mentions the locale parameter or how it affects output language, which the schema already covers. 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 ('Run TakeMeUp's free GDPR and personal-data check on one of the user's CVs') and names the exact artifacts it flags (date of birth, photo, marital status, nationality). The GDPR/discrimination framing makes it unambiguous against sibling analysis tools like analyze_takemeup_cv_ats or check_takemeup_six_second.

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?

Gives a clear trigger condition: 'Use before sending a CV to an employer in the EU,' which also implies a geographic exclusion. It never names alternatives (e.g., the ATS or six-second check) or states what to do for non-EU CVs, so routing is informative but not fully disambiguating.

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