get_hardening_guide

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

Annotations already establish readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is covered. The description adds useful content-level detail (it returns a fixed ten-step guide plus a subject string), but omits any note on idempotency, static vs dynamic content, or rate considerations. With annotations carrying the safety burden, this is adequate but not rich.

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?

A single front-loaded sentence with no filler. The only cost is that 'the exact English subject' is unexplained, which is a minor clarity issue rather than verbosity.

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?

Output schema exists, so return values need no explanation, and there are no parameters to document. The description states what the tool yields, which is sufficient for a no-arg retrieval tool, though it never clarifies what the 'subject' is for.

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, so the baseline is 4 and there is no parameter meaning to document. The description correctly spends no words re-explaining an empty schema.

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 a specific verb (Return) plus the resource (the ten-step confidentiality hardening guide), which is clearly distinct from action-oriented siblings like create_hardening_plan or apply_hardening_plan. The phrase 'the exact English subject' is cryptic on its own and slightly muddies otherwise clear intent.

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?

No when-to-use context or routing guidance is offered. With zero parameters the tool is likely always callable, but the description never says whether it should precede create_hardening_plan, be called standalone, or how it relates to get_report_context/render_report.

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