Redact PII (emails, phones, SSNs, credit cards, IPs, MACs, AWS keys, GitHub tokens, JWTs) from text via @mukundakatta/maskprompt-mcp (npx)

{
  "server": "@mukundakatta/maskprompt-mcp",
  "version": "0.1.0",
  "transport": "stdio",
  "install": "npm install @mukundakatta/maskprompt-mcp",
  "entry": "dist/server.js",
  "tools": ["redact", "find_pii"],
  "calls": [
    {
      "tool": "redact",
      "args": {
        "text": "Contact [email protected] or call 555-123-4567 for details."
      },
      "result": {
        "masked": "Contact <EMAIL> or call <US_PHONE> for details.",
        "matches": [
          {
            "kind": "EMAIL",
            "start": 8,
            "end": 28,
            "value": "[email protected]"
          },
          {
            "kind": "US_PHONE",
            "start": 37,
            "end": 49,
            "value": "555-123-4567"
          }
        ]
      },
      "ms": 3
    },
    {
      "tool": "redact",
      "args": {
        "text": "My SSN is 123-45-6789 and my backup is 987-65-4321."
      },
      "result": {
        "masked": "My SSN is <US_SSN> and my backup is <US_SSN>.",
        "matches": [
          {
            "kind": "US_SSN"
          },
          {
            "kind": "US_SSN"
          }
        ]
      },
      "ms": 1
    },
    {
      "tool": "redact",
      "args": {
        "text": "Pay with card 4111111111111111 or 5500000000000004."
      },
      "result": {
        "masked": "Pay with card <CREDIT_CARD> or <CREDIT_CARD>.",
        "matches": [
          {
            "kind": "CREDIT_CARD"
          },
          {
            "kind": "CREDIT_CARD"
          }
        ]
      },
      "ms": 0
    },
    {
      "tool": "redact",
      "args": {
        "text": "Server at 192.168.1.100 and docs at https://internal.corp.net/secret-api."
      },
      "result": {
        "masked": "Server at <IPV4> and docs at <URL>",
        "matches": [
          {
            "kind": "IPV4"
          },
          {
            "kind": "URL"
          }
        ]
      },
      "ms": 1
    },
    {
      "tool": "redact",
      "args": {
        "text": "AWS key AKIAIOSFODNN7EXAMPLE and token ghp_aBcDeFgHiJkLmNoPqRsTuVwXyZ0123456789 plus jwt eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiIxMjM0NTY3ODkwIn0.signature"
      },
      "result": {
        "masked": "AWS key <AWS_ACCESS_KEY> and token <GITHUB_TOKEN> plus jwt <JWT>",
        "matches": [
          {
            "kind": "AWS_ACCESS_KEY"
          },
          {
            "kind": "GITHUB_TOKEN"
          },
          {
            "kind": "JWT"
          }
        ]
      },
      "ms": 0
    },
    {
      "tool": "redact",
      "args": {
        "text": "MAC: 00:1A:2B:3C:4D:5E, IBAN: GB29 NWBK 6016 1331 9268 19"
      },
      "result": {
        "masked": "MAC: <MAC_ADDRESS>, IBAN: GB29 NWBK 6016 1331 9268 19",
        "matches": [
          {
            "kind": "MAC_ADDRESS"
          }
        ]
      },
      "note": "IBAN with spaces NOT detected — compact format only",
      "ms": 0
    },
    {
      "tool": "find_pii",
      "args": {
        "text": "Key AKIAIOSFODNN7EXAMPLE and IBAN DE89370400440532013000"
      },
      "result": {
        "count": 2,
        "matches": [
          {
            "kind": "AWS_ACCESS_KEY"
          },
          {
            "kind": "IBAN",
            "value": "DE89370400440532013000"
          }
        ]
      },
      "note": "IBAN without spaces IS detected",
      "ms": 0
    },
    {
      "tool": "redact",
      "args": {
        "text": "Email me at [email protected], phone 415-555-0199.",
        "strategy": "hash"
      },
      "result": {
        "masked": "Email me at <EMAIL>, phone <US_PHONE>."
      },
      "note": "BUG: strategy='hash' still produces tag output, NOT <KIND:abc12345>",
      "ms": 1
    },
    {
      "tool": "redact",
      "args": {
        "text": "SSN 111-22-3333 is on file.",
        "strategy": "fixed"
      },
      "result": {
        "masked": "SSN <US_SSN> is on file."
      },
      "note": "BUG: strategy='fixed' still produces tag output, NOT block chars",
      "ms": 0
    },
    {
      "tool": "redact",
      "args": {
        "text": "My card is 4111111111111111, thanks.",
        "strategy": "remove"
      },
      "result": {
        "masked": "My card is <CREDIT_CARD>, thanks."
      },
      "note": "BUG: strategy='remove' still produces tag output, NOT empty string",
      "ms": 1
    },
    {
      "tool": "redact",
      "args": {
        "text": "Card 4111111111111111 and SSN 123-45-6789.",
        "strategy": "truncate:4"
      },
      "result": {
        "masked": "Card <CREDIT_CARD> and SSN <US_SSN>."
      },
      "note": "BUG: strategy='truncate:4' still produces tag output",
      "ms": 0
    },
    {
      "tool": "redact",
      "args": {
        "text": "The quick brown fox jumps over the lazy dog."
      },
      "result": {
        "masked": "The quick brown fox jumps over the lazy dog.",
        "matches": []
      },
      "ms": 0
    },
    {
      "tool": "find_pii",
      "args": {
        "text": "Contact [email protected] or 555-123-4567. SSN 123-45-6789. Card 4111111111111111."
      },
      "result": {
        "count": 4,
        "matches": [
          {
            "kind": "EMAIL"
          },
          {
            "kind": "US_PHONE"
          },
          {
            "kind": "US_SSN"
          },
          {
            "kind": "CREDIT_CARD"
          }
        ]
      },
      "ms": 0
    },
    {
      "tool": "find_pii",
      "args": {
        "text": "No personal info here at all."
      },
      "result": {
        "count": 0,
        "matches": []
      },
      "ms": 1
    },
    {
      "tool": "redact",
      "args": {
        "text": "Name: John, email: [email protected], phone: +1-555-867-5309, SSN: 078-05-1120, card: 4111111111111111, IP: 10.0.0.1, MAC: AA:BB:CC:DD:EE:FF, IBAN: GB82 WEST 1234 5698 7654 32, AWS: AKIAIOSFODNN7EXAMPLE, GH: ghp_aBcDeFgHiJkLmNoPqRsTuVwXyZ0123456789"
      },
      "result": {
        "masked": "Name: John, email: <EMAIL>, phone: +<US_PHONE>, SSN: <US_SSN>, card: <CREDIT_CARD>, IP: <IPV4>, MAC: <MAC_ADDRESS>, IBAN: GB82 WEST 1234 5698 7654 32, AWS: <AWS_ACCESS_KEY>, GH: <GITHUB_TOKEN>"
      },
      "note": "IBAN with spaces NOT detected. Plain names NOT detected (no NER).",
      "ms": 0
    }
  ],
  "summary": {
    "total_calls": 15,
    "success": 15,
    "failure": 0,
    "success_rate": "100%",
    "p50_ms": 0,
    "p95_ms": 3
  }
}