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bx33661

Wireshark MCP

by bx33661

wireshark_editcap_time_shift

Destructive

Shift packet timestamps in a capture file by a specified number of seconds to adjust for time offsets or synchronize with other data.

Instructions

Shift packet timestamps by a relative number of seconds.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
secondsYes
input_fileYes
output_fileYes
Behavior2/5

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

While annotations indicate destructiveHint=true, the description does not explain key behavioral details, such as whether the shift is positive or negative, or that a new output file is created. It adds minimal value beyond the annotation.

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

Conciseness4/5

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

The description is a single, concise sentence with no wasted words. However, it is so brief that it sacrifices clarity, preventing a higher score.

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

Completeness2/5

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

For a tool with no output schema and only three parameters, the description should at least clarify the direction of the shift and that it creates an output file. The current minimal description leaves the agent uncertain about the tool's full behavior.

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

Parameters1/5

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

With 0% schema description coverage and no parameter descriptions in the text, the description fails to add meaning to the input schema. The term 'seconds' is mentioned but not explained (e.g., sign, bounds, or effect on timestamps).

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?

The description clearly states the action ('Shift') and the resource ('packet timestamps') with a specific modifier ('by a relative number of seconds'). This clearly distinguishes it from sibling tools like wireshark_editcap_split or wireshark_editcap_trim.

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

Usage Guidelines2/5

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 vs. alternatives (e.g., other editcap tools). It only states the operation, leaving the agent to infer the context.

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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