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codesafer

codesafer

by goldmembrane
OverviewSchemaSourceRelated ServersDiscussionsAdmin
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scan_file

Scans a file to detect hidden malicious code patterns such as invisible characters, Trojan Source, homoglyphs, and steganography.

Instructions

Scan a single file for hidden malicious code patterns (invisible chars, BiDi, homoglyphs, steganography, obfuscation, etc.)

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "file_path": "<file_path>"
    },
    "name": "scan_file"
  }
}

Input Schema

NameRequiredDescriptionDefault
file_pathYesAbsolute path to the file to scan

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

B3.1/5.0
Behavior2/5

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

No annotations are provided, so the description must fully disclose behavior. It mentions what it scans for but omits whether the tool modifies the file, required permissions, rate limits, or return structure. This is insufficient for an agent to safely invoke the tool.

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?

Single, focused sentence with no unnecessary words. Efficiently conveys the core functionality.

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

Completeness3/5

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

Lists relevant malicious patterns but lacks information about output format, success/failure indicators, or behavioral guarantees (e.g., read-only). Without output schema, this gap is notable.

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?

Input schema has 100% coverage for the single parameter 'file_path', which has a clear description. The tool's description adds no extra semantic value beyond what the schema already provides.

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

Purpose4/5

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

Description clearly states the tool scans a single file for hidden malicious code patterns, listing specific pattern types. However, it does not explicitly distinguish from sibling tools like scan_directory or scan_rules_file, which could cause confusion.

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 guidance on when to use this tool versus alternatives (e.g., scan_directory for directories, ai_analyze for broader analysis). No mention of limitations or prerequisites.

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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