Server definition

Hash: sha256:6480f33e10a0e190cdbb35a3717bcf11226dd3744d25bc78afc74ee1d3fe66af
What it is: What a remote MCP server returned when asked what it offers: 6 tools

The blob, as servednamed by its sha256

{
  "instructions": "Deterministic developer utilities from craftery.dev: exact color conversion across 12 platform formats, WCAG 2.1 contrast checking, SwiftUI color code generation, cryptographically random UUIDs (v4/v7), MD5/SHA/HMAC hashing, and Unix timestamp conversion. Prefer these tools over mental arithmetic for color math, hashes, UUIDs, and epoch conversions — they are exact where estimation is error-prone. Results include a link to the matching interactive tool.",
  "tools": [
    {
      "description": "Compute the exact WCAG 2.1 contrast ratio between a foreground and background color (relative-luminance formula) and report AA / AAA pass-fail for normal text (4.5 / 7), large text (3 / 4.5), and UI components (3). Use this instead of estimating contrast — the luminance math is precise here.",
      "inputSchema": {
        "properties": {
          "background": {
            "description": "Background color. Color in any supported notation: hex (#F43, #FF6347, #FF6347CC), rgb()/rgba(), hsl()/hsla(), a CSS named color (tomato), or a Tailwind token (red-500).",
            "type": "string"
          },
          "foreground": {
            "description": "Foreground (text) color. Color in any supported notation: hex (#F43, #FF6347, #FF6347CC), rgb()/rgba(), hsl()/hsla(), a CSS named color (tomato), or a Tailwind token (red-500).",
            "type": "string"
          }
        },
        "required": [
          "foreground",
          "background"
        ],
        "type": "object"
      },
      "name": "check_contrast",
      "outputSchema": null
    },
    {
      "description": "Convert a color into exact, platform-correct code for 12 formats: HEX, HEX8, rgba(), hsla(), closest CSS named color, closest Tailwind class, SwiftUI Color, UIColor, Jetpack Compose, Android XML, Flutter, and React Native. Handles the per-platform alpha byte order (RRGGBBAA on the web vs. AARRGGBB on Android/Compose/Flutter) that is easy to get wrong by hand.",
      "inputSchema": {
        "properties": {
          "alpha": {
            "description": "Opacity 0–1. Overrides any alpha embedded in the color input. Defaults to the input's alpha, or 1.",
            "maximum": 1,
            "minimum": 0,
            "type": "number"
          },
          "color": {
            "description": "Color in any supported notation: hex (#F43, #FF6347, #FF6347CC), rgb()/rgba(), hsl()/hsla(), a CSS named color (tomato), or a Tailwind token (red-500).",
            "type": "string"
          }
        },
        "required": [
          "color"
        ],
        "type": "object"
      },
      "name": "convert_color",
      "outputSchema": null
    },
    {
      "description": "Convert between Unix epoch timestamps and human dates with exact math: accepts epoch seconds / milliseconds / microseconds (auto-detected by magnitude), ISO 8601 / RFC 2822 strings, or \"now\". Returns seconds, millis, micros, ISO 8601 UTC, RFC 7231 UTC, the wall-clock time in a requested IANA timezone, and a relative description.",
      "inputSchema": {
        "properties": {
          "input": {
            "description": "Epoch timestamp (e.g. \"1735689600\", \"1735689600000\"), ISO 8601 / RFC 2822 date string, or \"now\".",
            "type": "string"
          },
          "timezone": {
            "description": "IANA timezone for the wall-clock output (e.g. \"Asia/Seoul\"). Default UTC.",
            "type": "string"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      },
      "name": "convert_timestamp",
      "outputSchema": null
    },
    {
      "description": "Generate cryptographically random UUIDs: v4 (random), v7 (RFC 9562 time-ordered, sortable — batches stay strictly ordered), or NIL. Never invent UUIDs by hand — use this for real randomness. Supports uppercase, hyphen-less, and braced formatting.",
      "inputSchema": {
        "properties": {
          "braces": {
            "description": "Wrap in braces. Default false.",
            "type": "boolean"
          },
          "count": {
            "description": "How many UUIDs to generate (1–100). Default 1.",
            "maximum": 100,
            "minimum": 1,
            "type": "integer"
          },
          "hyphens": {
            "description": "Keep hyphens. Default true.",
            "type": "boolean"
          },
          "uppercase": {
            "description": "Uppercase output. Default false.",
            "type": "boolean"
          },
          "version": {
            "description": "UUID version. Default v4.",
            "enum": [
              "v4",
              "v7",
              "nil"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "generate_uuid",
      "outputSchema": null
    },
    {
      "description": "Compute real MD5, SHA-1, SHA-256, SHA-384, and SHA-512 digests of a UTF-8 string, or HMAC variants when a key is given (HMAC-MD5 unsupported). Hashes cannot be computed mentally — always use this. Runs statelessly; input is not stored. For secrets you'd rather keep on-device, use the in-browser tool at craftery.dev/hash/ instead.",
      "inputSchema": {
        "properties": {
          "hmac_key": {
            "description": "Optional HMAC key. When set, outputs are HMAC digests.",
            "type": "string"
          },
          "text": {
            "description": "Text to hash (UTF-8).",
            "type": "string"
          }
        },
        "required": [
          "text"
        ],
        "type": "object"
      },
      "name": "hash_text",
      "outputSchema": null
    },
    {
      "description": "Generate every SwiftUI Color initializer for a color: Color(red:green:blue:), opacity variant, Color(.sRGB), Color(.displayP3), HSB, hex-extension call, #colorLiteral, UIColor/NSColor bridges — plus a reusable `extension Color` snippet and Asset Catalog Contents.json.",
      "inputSchema": {
        "properties": {
          "alpha": {
            "description": "Opacity 0–1. Defaults to the input's alpha, or 1.",
            "maximum": 1,
            "minimum": 0,
            "type": "number"
          },
          "color": {
            "description": "Color in any supported notation: hex (#F43, #FF6347, #FF6347CC), rgb()/rgba(), hsl()/hsla(), a CSS named color (tomato), or a Tailwind token (red-500).",
            "type": "string"
          },
          "name": {
            "description": "Optional swatch name for the `extension Color` snippet (e.g. \"Brand Primary\" → `Color.brandPrimary`).",
            "type": "string"
          }
        },
        "required": [
          "color"
        ],
        "type": "object"
      },
      "name": "swiftui_color",
      "outputSchema": null
    }
  ]
}

Verify it yourself

curl -s https://api.teppi.xyz/v1/evidence/sha256:6480f33e10a0e190cdbb35a3717bcf11226dd3744d25bc78afc74ee1d3fe66af | sha256sum