img_histogram

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

No annotations present, so description carries full burden. It discloses the detection technique (PoV) and purpose but does not mention side effects, permissions, or output format. Adequate for a read-only analysis tool, but could add reassurance that it does not modify files.

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, no fluff. First sentence states main purpose, second adds specific anomaly detection detail. Ideal conciseness for a straightforward tool.

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 defined, yet description fails to specify what the tool returns (histogram data, anomaly flags, or visual output). Without this, an AI agent cannot properly interpret the tool's results. Also lacks context on when to choose this over similar siblings like img_chi_square or img_rs_analysis.

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 coverage is 100% with both parameters fully described. The description adds no additional meaning beyond the schema's own descriptions for 'file_path' and 'channel'. Baseline 3 is appropriate.

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 verb 'generate' and resource 'pixel value histogram with anomaly detection'. It specifies the detection method (PoV) and target (LSB steganography), distinguishing it from sibling tools like img_chi_square and img_rs_analysis.

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?

Implied usage: detect LSB steganography via histogram anomalies. No explicit 'when to use' or 'when not to use', nor alternatives mentioned. Context is clear but lacks guiding boundaries.

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