Helixar Security

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

With no annotations provided, the description must fully disclose behavioral traits. It mentions the outputs cite the IETF draft and Zenodo DOI, and surfaces certain issues, but does not state whether the tool is read-only, its side effects, or any authentication or rate limit requirements. This is insufficient for a validation tool.

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 two sentences, front-loaded with purpose, and contains no extraneous information. While it is concise, it could be slightly better structured by separating purpose and parameter info, but it earns its place as brief and focused.

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 tool has two parameters, one required, nested objects, no output schema, and a sibling tool, the description is incomplete. It does not explain the return value format, the effect of the strict parameter, or the structure of the chain input. Important context for a validation tool is missing.

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?

Schema description coverage is 0%, meaning the schema provides no parameter descriptions. The tool description does not explain the parameters (chain, strict) or their structure, such as hops, max_hops, root_principal. It fails to add meaning beyond the field names, leaving the agent without necessary context for proper invocation.

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 HDP delegation chain against a specific IETF draft, and lists specific issues it surfaces (scope escalations, depth violations, expired hops, missing signatures). This distinguishes it from the sibling tool helixar_inspect_mcp, which likely has a different purpose.

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 for validating delegation chains, but does not provide explicit guidance on when to use this tool versus the sibling tool helixar_inspect_mcp, nor does it mention when not to use it. No exclusions or alternatives are referenced.

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

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

No annotations provided, so description bears full burden. It discloses that quick mode is authless, deep requires api_key, and outlines the output. It does not explicitly state whether the tool is read-only or idempotent, but for a scan tool the behavior is largely transparent.

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?

Two sentences, front-loaded with purpose, followed by key mode distinctions. Every sentence adds value with no 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?

No output schema, but description mentions return values (risk score, findings, security brief). Explains mode details. Missing potential error conditions or rate limits, but overall sufficient for a simple scan tool.

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?

Schema has 4 parameters (target, mode, api_key, context) with 25% description coverage. Description adds value by explaining mode semantics (quick vs deep, auth requirements) and api_key usage. Target description is already in schema, so description complements well.

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?

Description clearly states it scans an MCP server against detection rules, returns risk score, findings, and a security brief. It distinguishes between quick and deep modes, providing specificity. With sibling helixar_hdp_validate likely being a validation tool, this tool's purpose is well-defined.

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?

Provides clear guidance on when to use quick vs deep mode: quick is free and authless (top 8 rules), deep requires api_key (all 26 rules). However, it does not mention when not to use this tool or compare with sibling tool helixar_hdp_validate.

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