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esektov12121-eng

HackerOne MCP Server

search_disclosed_reports

Search publicly disclosed HackerOne reports to discover paid vulnerabilities and understand program validation criteria.

Instructions

Search publicly disclosed HackerOne reports (hacktivity). Useful for learning what gets paid, finding prior art, and understanding what a program considers valid.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
queryNoKeyword to filter results (e.g. 'SSRF', 'IDOR')
programNoProgram handle to filter by (e.g. 'uber')
page_sizeNoNumber of results (default 25)
Behavior3/5

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

No annotations provided, so description must disclose behavior. It states read-only search on public data, but doesn't mention pagination, rate limits, or auth needs. The schema's page_size implies pagination, but description adds no behavioral context beyond scope.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences: first defines action/scope, second explains utility. No fluff, front-loaded with key info.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple search tool with no output schema, description covers purpose and use cases. Missing details like result format or ordering, but adequate given complexity.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% with descriptions for all parameters. The description adds no extra meaning beyond the schema, e.g., it doesn't clarify date filters or search behavior. Baseline 3 is appropriate since schema does the heavy lifting.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

Description clearly states the tool searches publicly disclosed HackerOne reports (hacktivity), with a specific verb and resource. It differentiates from sibling tools like search_reports (likely private) by emphasizing public scope.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Description explains utility: learning what gets paid, finding prior art, understanding program validity. This gives clear context for when to use, but lacks explicit when-not-to-use or alternatives, though distinction from siblings is implied.

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

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