Koskamo

shadowjoin MCP

Measures matches silently dropped by exact joins and provides normalization rules to recover them. It runs a shadow matcher alongside real join keys to report lost matches and proves recoveries against ground truth.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

shadowjoin MCP logo, by harsh-chandakCommunity listingLocal stdioSource reviewed; not executedPublished by harsh-chandak
Vendor documentation

What you can do with it

  • Measure matches lost by exact joins
  • Get normalization rules to recover lost matches
  • Verify recoveries against ground truth

Source and maintenance

Community listingRegistry 0.3.2
mcp-registry: io.github.harsh-chandak/shadowjoin@0.3.2Source repository
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

shadowjoin 0.3.2

npm
shadowjoin package definition
{
  "version": "0.3.2",
  "transport": "stdio",
  "identifier": "shadowjoin",
  "registryType": "npm",
  "environmentVariables": [
    {
      "name": "SHADOWJOIN_CONFIG",
      "isRequired": true,
      "description": "Absolute path to shadowjoin.config.json, which names your data sources. Connection strings live here and never pass through a tool call."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "shadowjoin-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "shadowjoin@0.3.2"
      ],
      "env": {
        "SHADOWJOIN_CONFIG": "<YOUR_SHADOWJOIN_CONFIG>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "shadowjoin-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "shadowjoin@0.3.2"
      ],
      "env": {
        "SHADOWJOIN_CONFIG": "<YOUR_SHADOWJOIN_CONFIG>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "shadowjoin-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "shadowjoin@0.3.2"
      ],
      "env": {
        "SHADOWJOIN_CONFIG": "<YOUR_SHADOWJOIN_CONFIG>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "shadowjoin-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "shadowjoin@0.3.2"
      ],
      "env": {
        "SHADOWJOIN_CONFIG": "<YOUR_SHADOWJOIN_CONFIG>"
      }
    }
  }
}

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