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img_lsb_detect

Detect LSB steganography in images by applying chi-square and sample pair analysis to each color channel.

Instructions

Statistical LSB steganography detection. Runs chi-square and sample pair analysis on each color channel independently.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
file_pathYesPath to image file
Behavior3/5

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

No annotations, so description must cover behavior. Discloses use of two statistical analyses per color channel independently, but fails to state whether the tool is read-only or what side effects exist. Moderate disclosure.

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, efficient and front-loaded with core purpose. No extraneous information.

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?

Lacks output description. For a detection tool, it is crucial to describe what result is returned (e.g., probability scores, detection flags). No output schema exists, so the description should compensate. Incomplete.

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 covers file_path with a basic description. The tool description does not add any additional meaning about the parameter, such as supported file formats or path requirements. Baseline 3 is appropriate.

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?

Describes specific verb (detect) and resource (LSB steganography). Differentiates from sibling tools like img_lsb_embed and img_lsb_extract by focusing on detection. The mention of specific methods (chi-square, sample pair) adds clarity.

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?

No explicit when-to-use or alternatives provided. The description does not differentiate from other detection tools like img_chi_square or img_rs_analysis, leaving the agent without guidance on tool selection.

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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