pwntools_tube_recvuntil

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

Annotations already provide readOnlyHint, idempotentHint, openWorldHint, and destructiveHint. The description adds minimal behavioral context, stating the core receiving-until-pattern action. It does not elaborate on timeout behavior, default dropping of pattern, or what happens if the pattern is not found. While not contradictory, it adds little beyond the annotations.

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, direct sentence: 'Receive data from a tube until a pattern is found.' It is front-loaded with the action and resource, and contains no superfluous words. This is an appropriate level of conciseness.

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 that the tool has multiple parameters with schema descriptions and an output schema exists, the description covers the core functionality. However, it omits important behavioral details such as timeout handling and the default 'drop' behavior, which are left to parameter descriptions. This leaves some gaps in understanding the complete tool behavior.

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 provides detailed descriptions for all four parameters (pattern, drop, timeout, tube_id), so the description does not need to add parameter semantics. Although context signals indicate 0% schema description coverage, this seems inconsistent; the schema does have descriptions. Baseline 3 is appropriate as the description adds no extra parameter insights.

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 verb 'Receive', the resource 'data from a tube', and the condition 'until a pattern is found', effectively distinguishing it from sibling tools like pwntools_tube_recv (general receive) and pwntools_tube_recvline (line-based receive). The title in annotations ('Receive Until Pattern') reinforces the 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 does not provide guidance on when to use this tool versus alternatives (e.g., pwntools_tube_recv or pwntools_tube_recvline). It only states what it does, leaving usage context implicit. No explicit when-to-use or when-not-to-use instructions are present.

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