otx_pivot_hash

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

With no annotations, the description carries the behavioral transparency burden. It discloses that this is a lookup-style enrichment returning four specific data categories, but it does not state read-only semantics, authentication requirements, failure behavior, or rate limits. The word 'Returns' implies no side effects, but several behavioral gaps remain.

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 a single sentence that immediately identifies the vendor, resource, and output categories with no filler. It is concise, front-loaded, and every phrase contributes useful information.

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?

For a one-parameter enrichment lookup with no output schema, the description lists the key return categories and explains the purpose of imphash for sibling sample pivoting. It does not cover error behavior or clarify the relationship to bazaar_get_imphash_siblings, but it provides enough context for basic invocation.

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 already documents the single hash parameter with 100% coverage, including accepted formats (SHA256, MD5, or SHA1). The description adds no parameter-level meaning beyond the schema, so the baseline score of 3 is appropriate.

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 performs OTX enrichment on a file hash and enumerates the returned data categories: malware families, MITRE techniques, actor attribution, and imphash. This distinguishes it from other OTX pivot tools by hash type and from non-OTX hash lookups, though it does not explicitly name a sibling.

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?

Usage is implied: use this when you have a file hash and want OTX threat intelligence. The description does not provide explicit when-to-use/when-not-to-use guidance or name alternative tools, so an agent must infer the appropriate context from the tool name and sibling list.

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