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MCP Server Semgrep

by VetCoders

MCP Server Semgrep

mcp-server-semgrep MCP server

POWERED BY:

POWERED BY

About the Project

MCP Server Semgrep Logo This project was initially inspired by robustness of Semgrep tool, The Replit Team and their Agent V2, as well as the implementation by stefanskiasan/semgrep-mcp-server, but has evolved with significant architectural changes for enhanced and easier installation and maintenance.

MCP Server Semgrep is a Model Context Protocol compliant server that integrates the powerful Semgrep static analysis tool with AI assistants like Anthropic Claude. It enables advanced code analysis, security vulnerability detection, and code quality improvements directly through a conversational interface.

Related MCP server: AWS Security MCP

Benefits of Integration

For Developers and Development Teams:

  • Holistic Source Code Analysis - detecting issues throughout the entire project, not just in individual files

  • Proactive Error Detection - identifying potential problems before they become critical bugs

  • Continuous Code Quality Improvement - regular scanning and refactoring lead to gradual codebase improvements

  • Stylistic Consistency - identification and fixing of inconsistencies in code, such as:

    • Arbitrary z-index layers in CSS

    • Inconsistent naming conventions

    • Code duplication

    • "Magic numbers" instead of named constants

For Security:

  • Automated Code Verification for Known Vulnerabilities - scanning for known security issue patterns

  • Customized Security Rules - creating project-specific rules

  • Team Education - teaching secure programming practices through detection of potential issues

For Project Maintenance and Development:

  • "Live" Documentation - AI can explain why a code fragment is problematic and how to fix it

  • Technical Debt Reduction - systematically detecting and fixing problematic areas

  • Improved Code Reviews - automatic detection of common issues allows focus on more complex matters

Key Features

  • Direct integration with the official MCP SDK

  • Simplified architecture with consolidated handlers

  • Clean ES Modules implementation

  • Efficient error handling and path validation for security

  • Interface and documentation in both English and Polish

  • Comprehensive unit tests

  • Extensive documentation

  • Cross-platform compatibility (Windows, macOS, Linux)

  • Flexible Semgrep installation detection and management

Functions

Semgrep MCP Server provides the following tools:

  • scan_directory: Scanning source code for potential issues

  • list_rules: Displaying available rules and languages supported by Semgrep

  • analyze_results: Detailed analysis of scan results

  • create_rule: Creating custom Semgrep rules

  • filter_results: Filtering results by various criteria

  • export_results: Exporting results in various formats

  • compare_results: Comparing two sets of results (e.g., before and after changes)

Common Use Cases

  • Code security analysis before deployment

  • Detection of common programming errors

  • Enforcing coding standards within a team

  • Refactoring and improving quality of existing code

  • Identifying inconsistencies in styles and code structure (e.g., CSS, component organization)

  • Developer education regarding best practices

  • Verification of fix correctness (comparing before/after scans)

Installation

Prerequisites

  • Node.js v18+

  • TypeScript (for development)

The easiest way to install and use MCP Server Semgrep is through Smithery.ai:

  1. Visit MCP Server Semgrep on Smithery.ai

  2. Follow the installation instructions to add it to your MCP-compatible clients

  3. Configure any optional settings like the Semgrep API token and allowed workspace roots

This is the recommended method for Claude Desktop and other MCP clients as it handles all dependencies and configuration automatically.

Option 2: Install from NPM Registry

# Using npm
npm install -g mcp-server-semgrep

# Using pnpm
pnpm add -g mcp-server-semgrep

# Using yarn
yarn global add mcp-server-semgrep

The package is also available on other registries:

Option 3: Install from GitHub

# Using npm
npm install -g git+https://github.com/vetcoders/mcp-server-semgrep.git

# Using pnpm
pnpm add -g git+https://github.com/vetcoders/mcp-server-semgrep.git

# Using yarn
yarn global add git+https://github.com/vetcoders/mcp-server-semgrep.git

Option 4: Local Development Setup

  1. Clone the repository:

git clone https://github.com/vetcoders/mcp-server-semgrep.git
cd mcp-server-semgrep
  1. Install dependencies (supports all major package managers):

# Using pnpm (recommended)
pnpm install

# Using npm
npm install

# Using yarn
yarn install
  1. Build the project:

# Using pnpm
pnpm run build

# Using npm
npm run build

# Using yarn
yarn build

Note: The installation process will automatically check for Semgrep availability. If Semgrep is not found, you'll receive instructions on how to install it.

Workspace Root Contract

This server only reads and writes files inside explicitly allowed workspace roots.

  • By default, the allowed root is the process working directory (process.cwd()).

  • For Claude Desktop, Smithery, or any launcher that does not start the server inside your project root, set MCP_SERVER_SEMGREP_ALLOWED_ROOTS to one or more absolute directories.

  • Use your platform path delimiter for multiple roots: : on macOS/Linux, ; on Windows.

Authentication Modes

This server does not implement its own Semgrep account handling. It shells out to the installed semgrep CLI and relies on Semgrep's normal authentication behavior.

  • Local terminal and local development runs can often use an existing semgrep login session from the current OS account.

  • Managed launches such as Claude Desktop, Smithery, containers, or CI should prefer an explicit SEMGREP_APP_TOKEN for deterministic behavior.

  • SEMGREP_APP_TOKEN is still the safest option when you need portable configuration across machines or runners.

Semgrep Installation Options

Semgrep can be installed in several ways:

  • Via package managers:

    # Using pnpm
    pnpm add -g semgrep
    
    # Using npm
    npm install -g semgrep
    
    # Using yarn
    yarn global add semgrep
  • Python pip:

    pip install semgrep
  • Homebrew (macOS):

    brew install semgrep
  • Linux:

    sudo apt-get install semgrep
    # or
    curl -sSL https://install.semgrep.dev | sh
  • Windows:

    pip install semgrep

Integration with Claude Desktop

There are two ways to integrate MCP Server Semgrep with Claude Desktop:

  1. Visit MCP Server Semgrep on Smithery.ai

  2. Click "Install in Claude Desktop"

  3. Follow the on-screen instructions

Method 2: Manual Configuration

  1. Install Claude Desktop

  2. Update the Claude Desktop configuration file (claude_desktop_config.json) and add this to your servers section.

For local launches started under a user account that is already authenticated with semgrep login, the Semgrep CLI may be able to reuse that login. For desktop-managed or shared environments, we still recommend setting SEMGREP_APP_TOKEN explicitly:

{
  "mcpServers": {
    "semgrep": {
      "command": "node",
      "args": [
        "/your_path/mcp-server-semgrep/build/index.js"
      ],
      "env": {
        "SEMGREP_APP_TOKEN": "your_semgrep_app_token",
        "MCP_SERVER_SEMGREP_ALLOWED_ROOTS": "/Users/you/projects"
      }
    }
  }
}
  1. Launch Claude Desktop and start asking questions about code analysis.

If you want to scan more than one workspace, set MCP_SERVER_SEMGREP_ALLOWED_ROOTS to a platform-delimited list of absolute paths.

Usage Examples

Project Scanning

Could you scan my source code in the /projects/my-application directory for potential security issues? That directory is already included in MCP_SERVER_SEMGREP_ALLOWED_ROOTS.

Style Consistency Analysis

Analyze the z-index values in the project's CSS files and identify inconsistencies and potential layer conflicts.

Creating a Custom Rule

Create a Semgrep rule that detects improper use of input sanitization functions.

Filtering Results

Show me only scan results related to SQL injection vulnerabilities.

Identifying Problematic Patterns

Find all "magic numbers" in the code and suggest replacing them with named constants.

Creating Custom Rules

You can create custom rules for your project's specific needs. Here are examples of rules you can create:

Rule to detect inconsistent z-indices:

rules:
  - id: inconsistent-z-index
    pattern: z-index: $Z
    message: "Z-index $Z may not comply with the project's layering system"
    languages: [css, scss]
    severity: WARNING

Rule to detect deprecated imports:

rules:
  - id: deprecated-import
    pattern: import $X from 'old-library'
    message: "You're using a deprecated library. Consider using 'new-library'"
    languages: [javascript, typescript]
    severity: WARNING

Development

Testing

pnpm test

Project Structure

├── src/
│   └── index.ts          # Main entry point and all handler implementations
├── scripts/
│   └── check-semgrep.js  # Semgrep detection and installation helper
├── build/                # Compiled JavaScript (after build)
└── tests/                # Unit tests

Further Documentation

Detailed information on using the tool can be found in:

  • USAGE.md - Detailed usage instructions

  • README_PL.md - Documentation in Polish

  • examples/ - Example fun and practical Semgrep rules - "The Hall of Code Horrors"

License

This project is licensed under the MIT License - see the LICENSE file for details.

Developed by

vetcoders

🤖 Developed with the help of Claude Code and MCP Tools

Acknowledgements

Available Tools

7 tools
analyze_resultsC

Analyzes scan results

ParametersJSON Schema
NameRequiredDescriptionDefault
results_fileYesAbsolute path to JSON results file (must be within an allowed workspace root)

TDQS

C2.3/5.0
Behavior2/5

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

With no annotations, the description carries full responsibility for behavioral disclosure. It only says 'Analyzes', implying a read operation, but does not state if results are modified, returned, or stored. No information about side effects, authorization needs, or output format is given.

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

Conciseness3/5

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

The description is a single sentence, which is concise but lacks structuring. It does not provide additional sections or details to aid understanding. The brevity is acceptable but not optimally informative.

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?

Given the absence of an output schema and the presence of sibling tools, the description is incomplete. It does not explain what the analysis returns or how it differs from compare_results or filter_results. The tool's functionality remains unclear.

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?

The schema provides a complete description for the single parameter (results_file) with context about allowed paths. Since schema coverage is 100%, the description's lack of parameter information is acceptable per guidelines. However, it adds no extra meaning beyond the schema.

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

Purpose2/5

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

The description states 'Analyzes scan results', which is a verb+resource, but it is vague. It does not specify what kind of analysis is performed (e.g., statistical, pattern detection, summary) and fails to distinguish from sibling tools like compare_results, filter_results, and export_results.

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?

There is no guidance on when to use this tool versus alternatives. No context, prerequisites, or exclusions are provided, leaving the agent without criteria for tool selection.

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

compare_resultsC

Compares two scan results

ParametersJSON Schema
NameRequiredDescriptionDefault
old_resultsYesAbsolute path to older JSON results file
new_resultsYesAbsolute path to newer JSON results file

TDQS

C2.9/5.0
Behavior2/5

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

The description is minimal ('Compares two scan results') and provides no behavioral details beyond the name. With no annotations, it fails to disclose whether the tool is read-only, its side effects, return behavior, or required permissions.

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 sentence with no extra words, making it concise. However, it could be restructured to front-load more critical information without increasing length significantly.

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 two string parameters, the description does not explain what the comparison produces (e.g., diff output, boolean, list of changes). This leaves the agent unsure of the return value and behavior, making it 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?

Both parameters are described in the input schema ('Absolute path to older JSON results file' and 'Absolute path to newer JSON results file'), achieving 100% schema coverage. The description adds no additional meaning beyond the schema, so baseline 3 is appropriate.

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?

The description 'Compares two scan results' uses a verb ('compares') and resource ('scan results'), clearly indicating the tool's function. It is distinct from siblings like 'analyze_results' and 'filter_results', but lacks specificity on what the comparison entails (e.g., differences, similarities).

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 is provided on when to use this tool versus alternatives such as 'analyze_results' or 'filter_results'. There is no mention of prerequisites, when-not-to-use, or explicit context.

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

create_ruleC

Creates a new Semgrep rule

ParametersJSON Schema
NameRequiredDescriptionDefault
output_pathYesAbsolute path for output rule file
patternYesSearch pattern for the rule
languageYesTarget language for the rule
messageYesMessage to display when rule matches
severityNoRule severity (ERROR, WARNING, INFO)WARNING
idNoRule identifiercustom_rule

TDQS

C2.6/5.0
Behavior1/5

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

With no annotations, the description must disclose behavioral traits. It only states 'Creates a new Semgrep rule' with no information about side effects (e.g., overwriting existing files), permissions, or error handling.

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

Conciseness3/5

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

The description is a single sentence, which is concise but lacks structure. It front-loads the action but provides no additional detail, making it barely adequate.

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?

Given the tool creates a file (output_path required) and has no output schema, the description should explain return behavior (e.g., success indication) or file naming. It does not, leaving significant gaps for an agent.

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 with clear parameter descriptions. The tool description adds no additional meaning beyond the schema, meeting the baseline for high coverage.

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?

The description uses a specific verb 'Creates' and resource 'a new Semgrep rule', making the core action clear. It naturally distinguishes from siblings which focus on analysis, comparison, and listing, not creation.

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. The description does not indicate prerequisites (e.g., rule syntax knowledge) or situations where other tools might be more appropriate.

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

export_resultsC

Exports scan results in various formats

ParametersJSON Schema
NameRequiredDescriptionDefault
results_fileYesAbsolute path to JSON results file
output_fileYesAbsolute path to output file
formatNoOutput format (json, sarif, text)text

TDQS

C2.8/5.0
Behavior2/5

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

With no annotations provided, the description carries full burden for behavioral disclosure. It fails to mention whether the tool overwrites existing files, requires network access, or produces any side effects. The agent cannot infer safety or error conditions from the description alone.

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

Conciseness3/5

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

The description is a single sentence, which is concise but lacks structure. It does not front-load critical information like required parameters or output behavior. The brevity is acceptable but not optimal for usability.

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?

Given no output schema, the description should indicate what the tool returns (e.g., success message, file path). It also does not mention error handling or performance implications. The tool is simple, but the description remains incomplete for fully autonomous invocation.

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?

All 3 parameters are described in the schema with high coverage (100%). The description adds no extra context beyond 'exports scan results in various formats'—it does not elaborate on parameter constraints like valid file paths or format specifics. Baseline 3 is appropriate since schema does the work.

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?

The description 'Exports scan results in various formats' clearly indicates the action (export) and resource (scan results) and mentions format variability. However, it does not differentiate from sibling tools like analyze_results or compare_results, which might also output results. The description could be more specific about the exact nature of the export.

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 is provided on when to use this tool versus alternatives, such as analyze_results or filter_results. There are no mentions of prerequisites or context in which export is appropriate. The agent is left without decision support.

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

filter_resultsC

Filters scan results by various criteria

ParametersJSON Schema
NameRequiredDescriptionDefault
results_fileYesAbsolute path to JSON results file
severityNoFilter by severity (ERROR, WARNING, INFO)
rule_idNoFilter by rule ID
path_patternNoFilter by file path pattern (regex)
languageNoFilter by programming language
message_patternNoFilter by message content (regex)

TDQS

C2.6/5.0
Behavior2/5

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

No annotations provided, so the description carries the full burden. It does not disclose whether the tool modifies the original file, requires authentication, or has side effects. The filtering behavior (e.g., AND vs OR logic) is not explained.

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?

Very short single sentence, efficient but lacking critical details. It is concise but not optimally informative for a 6-parameter tool.

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?

With 6 parameters, no output schema, and no annotations, the description is incomplete. It does not explain return format, behavior when no matches, or how it differs from sibling tools like export_results.

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 coverage is 100% with parameter descriptions, so the description adds minimal value beyond the schema. It does not clarify how multiple filters interact, which leaves ambiguity for the agent.

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

Purpose3/5

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

The description states it filters scan results, which is clear but lacks specificity about the resource (e.g., scan results file) and does not differentiate from sibling tools like analyze_results or compare_results.

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., analyze_results for aggregation, compare_results for comparison). No when-not-to-use or prerequisites mentioned.

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

list_rulesB

Lists available Semgrep rules

ParametersJSON Schema
NameRequiredDescriptionDefault
languageNoProgramming language for rules (optional)

TDQS

B3.2/5.0
Behavior2/5

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

No annotations provided. Description lacks any behavioral details such as authentication needs, rate limits, or whether it returns full rule details or just names.

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?

Single sentence, concise and front-loaded with essential information. No wasted words.

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?

Given no output schema and one optional parameter, the description provides minimal context. It doesn't clarify what information is returned (e.g., rule names only or full definitions).

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 coverage is 100%, and the description adds no extra meaning beyond the schema's parameter description. 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?

The description clearly states the verb 'lists' and resource 'Semgrep rules', distinguishing it from siblings like 'create_rule' and 'scan_directory'.

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 like 'filter_results' or 'analyze_results'. Does not specify when not to use.

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

scan_directoryB

Performs a Semgrep scan on a directory

ParametersJSON Schema
NameRequiredDescriptionDefault
pathYesAbsolute path to the directory to scan (must be within an allowed workspace root)
configNoSemgrep configuration (e.g. "auto" or absolute path to rule file)auto

TDQS

B3/5.0
Behavior2/5

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

No annotations provided; description only states the action without disclosing side effects, permissions, or output behavior.

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

Conciseness3/5

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

Single sentence is concise but lacks structure or front-loading of key details. Could be expanded to include usage context.

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?

No output schema and no annotations; description does not explain return values, side effects, or prerequisites, making it incomplete for a scan tool.

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 description coverage is 100%; both 'path' and 'config' are described in the schema. Description adds no extra meaning beyond the schema.

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?

Clear verb+resource: 'Performs a Semgrep scan on a directory' distinguishes from siblings like analyze_results or list_rules.

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 vs alternatives (e.g., analyze_results) or any exclusions.

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

TDQS

B3.3/5.0
Disambiguation5/5

Each tool targets a distinct operation in the Semgrep workflow: scanning, analyzing, comparing, filtering, exporting results, and managing rules. No two tools appear to perform the same function.

Naming Consistency5/5

All tool names follow a consistent verb_noun pattern with lowercase and underscores (e.g., scan_directory, list_rules). The verbs are imperative and the nouns are predictable.

Tool Count5/5

Seven tools is well-scoped for a code scanning server, covering the main operations without being excessive or insufficient.

Completeness4/5

The tool set covers core workflows: scanning, result analysis, comparison, filtering, export, and rule creation/listing. Missing update/delete for rules but this is a minor gap.

Maintenance

ActivityMaintained
ResponsivenessSyncing

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