fetch_cc_rule_by_id

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

With no annotations, the description indicates a read-only operation ('Fetch ... details'), but lacks detail on side effects, authentication, or error cases. Adequate for a simple fetch, 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?

The description is concise with two sections (Args, Returns) and uses bold for emphasis. It is well-structured and avoids redundancy.

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 the simple nature of the tool and presence of an output schema (not shown here), the description sufficiently covers the purpose and parameters. The Returns clause adds context.

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 description explains the only parameter 'rule_id' as 'Rule Id of the rule to retrieve,' adding meaning beyond the schema (0% coverage). Clear and helpful.

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 clearly states 'Fetch rule details by rule id from the compliancecow,' specifying the verb+resource and distinguishing from siblings like 'fetch_cc_rule_by_name' and 'fetch_cc_rules_list'.

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 usage when you have a rule ID but provides no explicit guidance on when not to use or alternatives. Basic clarity is present, but no comparative advice is given.

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