validate_esic_code

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

The description adds '# PermissionTier: READ_ONLY', which is already conveyed by the annotations (readOnlyHint: true). It does not provide additional behavioral details such as whether the validation is strictly syntactic or involves external checks. Given annotations cover read-only and idempotent behavior, the added value is minimal.

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 very short and immediately states the core purpose. However, it could be slightly more descriptive without being verbose. It is efficiently structured but borderline too terse.

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?

The tool has a simple validation function with one parameter and an output schema (indicated). The description does not address error handling, output format, or validity criteria beyond the schema. For a minimal tool, this may suffice, but lacks completeness for nuanced edge cases.

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 input schema has 100% coverage for the single 'code' parameter, including a format description. The description does not add any further meaning beyond what the schema already provides. Baseline score of 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?

The description clearly states the tool validates an ESIC employer code, which is a specific verb and resource. It implicitly distinguishes itself from sibling tools like 'validate_epf_code' by focusing on ESIC-specific codes.

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 provides no explicit guidance on when to use this tool versus alternatives like 'validate_epf_code' or other validation tools. The '# PermissionTier: READ_ONLY' comment hints at usage context but is insufficient for decision-making among many siblings.

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