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

Goes well beyond the annotations: discloses the required capability (manage_options), the not-installed/not-active degradation shape, the exact metrics returned, and the cache-status dependencies (CISA KEV + Wordfence). Read-only/idempotent behavior is consistent with the annotations rather than contradicting them.

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?

Front-loaded with the core purpose, followed by payload, degradation, and permission in a logical order. Slightly padded by the '[Royal MCP Pro]' branding and the redundant inline site string, but no sentence is filler.

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?

There is no output schema, and the description compensates by enumerating the returned fields and the empty-case shape. Combined with the permission requirement and degradation rule, an agent has everything needed to call and interpret it.

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?

Only one parameter and the schema documents it at 100% coverage, including the site_id enum and label. The description adds nothing beyond the '(site: demo.royalplugins.com)' fragment already visible in the enum, so the 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+resource combination: a composite read of GuardPress security posture, with the exact payload enumerated (failed logins 24h/7d, blocked IPs, alerts, 2FA rate, threat-intel cache). It implicitly separates itself from the single-metric siblings via 'Composite' and 'at a glance,' but never names gp_get_security_stats or gp_get_security_status, so the agent must infer the split.

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?

'for orchestrator dashboards' gives a clear use context, and the graceful-degradation clause tells the agent when a valid response is effectively empty ({ active: false }). It does not say when to prefer the narrower gp_get_security_status or gp_get_failed_logins instead, so the routing is only implied.

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