keycloak_get_realm_session_stats

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

The annotations already declare readOnlyHint=true, covering the read-only safety profile. The description adds the aggregation scope (per client, across realm), but does not clarify details like whether offline sessions are excluded, pagination behavior, or the exact structure of the returned data.

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 description is a single, front-loaded sentence with no filler. The key scope ('per client across the realm') appears early and the phrasing is 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?

For a simple read-only count tool with one optional parameter and no output schema, the description supplies sufficient scope and intent. It could be more precise about what 'active sessions' includes and what the response contains, but the core information needed to select and invoke the tool is present.

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% for the single optional 'realm' parameter, including its default value. The description adds no parameter-specific information, but the schema already fully documents the parameter.

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 the specific verb 'count' and clearly identifies the resource: active sessions per client across the realm. This distinguishes it from sibling tools like keycloak_get_client_sessions or keycloak_get_client_session_count, which focus on a single client.

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 description implies when to use the tool: when a realm-wide per-client session count is needed. However, it does not explicitly state when not to use it or name alternative tools, leaving some routing to inference.

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