Get Scaleway Audit Trail last-events overview

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

Beyond annotations that mark it as read-only and non-destructive, the description discloses return characteristics (last handful, no filters/pagination) and a specific permission requirement. It also hints at error behavior by noting what happens if permissions are missing. Minor omission: no mention of rate limits or result size limits.

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 sentences, each earning its place: purpose+constraints, usage hint, permission+error recourse. No fluff, no repetition. Appropriate length for such a simple tool.

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?

Given no output schema, the description covers what the tool does and returns at a high level ('snapshot of most recent Audit Trail events'). It explains the no-filter/no-pagination behavior. While it doesn't detail the exact structure of returned events, for a 'quick check' tool this is sufficient, especially since sibling tools likely have richer output documentation.

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 baseline is 3. The description does not add new per-parameter semantics beyond what the schema already provides. The schema already describes region (with default), project_id as optional filter, and full_detail as boolean. The description's permission note applies globally, not to specific parameters.

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 uses specific verbs and resource: 'Get the snapshot of most recent Audit Trail events'. It clearly states constraints: 'the last handful of api events, no filters, no pagination'. This distinctively separates it from sibling tools like scaleway_audit_list_events which are paginated queries.

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?

Explicitly guides when to use: 'Handy as a cheap anything happening lately? check before running a full paginated query'. Provides prerequisite: 'Requires the AuditTrailReadOnly permission set on THIS server's own credential' and a fallback action referencing sibling tool scaleway_iam_set_policy_rules. This contextualizes usage well.

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