This Node.js MCP Server provides two distinct sets of capabilities:
Core Development Tools (from documentation):
Context Management: Read and update project documentation (
README.md) using themdtool withread_allandupdate_allactionsTest Management: Create, update, and run tests through the
testtool, which writes test code, executesnpm test, and reports results to test.mdBuild & Deployment: Run projects in development (
dev) or production (prod) mode using thedeploytoolPath Flexibility: All tools support optional absolute path arguments for project root directory specification
Utility Tools (actual implementation):
Arithmetic Calculations: Perform basic operations (add, subtract, multiply, divide) on two numbers using the
calculatetoolSystem Information: Retrieve system information using the
get_system_infotool
Note: There is a discrepancy between the documented tools (md, test, deploy) and the actually implemented tools (calculate, get_system_info). Both tools execute synchronously only. The server can be configured for use with Claude/Anthropic MCP clients through configuration files.
Provides tools for running and managing project test suites via the npm CLI, including writing test files, executing npm test, and capturing output.
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@Node.js MCP Servercalculate 15 * 3 + 7"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
MAIN ASPECTS
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Node.js MCP Server
A specialized MCP server focused on 3 Core Jobs for agentic workflows.
The 3 Jobs
1. Context Management & Learning
The agent can manage the project's documentation and "learn" the entire context.
Tool:
mdActions:
read_all: ReadsREADME.mdfrom the specified path.update_all: Overwrites/updatesREADME.mdwith new content provided by the client.Arguments:
path(string, optional) - Absolute path to project root.content(string, required forupdate_all) - The new content forREADME.md.
2. Test Management
The agent can manage the project's tests in a unified workflow.
Tool:
testAction:
testFunctionality:
Writes the provided test
codetotest_path.Runs the project's test suite (
npm test).Reports output and errors to
test.md.
Arguments:
path(string, optional) - Absolute path to project root.test_path(string, required) - Relative path to the test file (e.g.,tests/api.test.js).code(string, required) - Content of the test file.
3. Build & Run
Tool:
deployActions:
dev: Runs the project in development mode.prod: Builds the project and runs it.Arguments:
path(string, optional) - Absolute path to project root.
Installation & Usage
1. Build the Server
2. Configuration (Claude / Antigravity)
Add to your MCP configuration file:
Location: ~/.config/Claude/claude_desktop_config.json (Linux)
3. Usage Examples
Manage Tests
To create a test, update it, or simply run existing tests (by re-submitting the code), use the test tool.
The server will:
Save
tests/login.test.js.Run
npm test.Report full results to
test.md.
Troubleshooting
Path Issues: Always provide the
pathargument.npm test: The
testaction requires a validtestscript in the project'spackage.json.