Faults

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

The description adds real interpretive behavior beyond the annotations: it explains how signals from three sources are correlated and what a specific combination implies. However, annotations declare readOnlyHint=false and idempotentHint=false for what reads like a pure diagnostic query, and the description never clarifies whether the call mutates anything, has side effects, or requires elevated privileges — a gap worth addressing.

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 data sources and the correlation rule are front-loaded, which is good, but the trailing internal reference '(CONCEPT:SM-OS.governance.sys-8/SYS-1.5)' is jargon that consumes attention without helping an agent decide or call. The em-dash construction also packs three ideas into one long sentence.

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?

With no output schema and no parameters, the description is the only place an agent can learn what comes back, and it never says anything about result shape (per-disk records? severity fields? counts?) or whether privileges/root are needed for IPMI/BMC access. The correlation semantics are well covered, but the return contract is not.

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?

The tool takes zero parameters (schema coverage 100%, additionalProperties false), so there is nothing for the description to disambiguate. Baseline of 4 applies; no parameter gaps exist.

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 states precisely which data the tool exposes: SMART readings (including megaraid passthrough), BMC/IPMI drive-slot faults, and RAID physical-disk state, plus the correlation between them. That separates it from sm_storage_health_smart and sm_storage_health_raid in substance, though it never explicitly says 'these siblings give you the uncorrelated views' — the differentiation is implied rather than stated.

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 when-to-use / when-not-to-use guidance and no alternatives are named, even though three sibling storage-health tools exist and overlap heavily. The interpretation note (BMC-flagged disk with clean SMART = link/aging fault) hints at diagnostic use but does not tell the agent under which conditions to call this instead of sm_storage_health_smart or sm_storage_health_report.

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