# Craftery Developer Tools

> Developer utilities: color conversion, WCAG contrast, timestamps, UUIDs, and hashing.

- name: dev.craftery/tools
- version: 1.0.2
- connection class: R0 (autonomous)
- trust: 82/100 flags: no-repository
- quality: 75/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/dev.craftery%2Ftools
- tools: https://api.protogrid.dev/v1/servers/dev.craftery%2Ftools/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "tools": {
      "type": "http",
      "url": "https://craftery.dev/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 97
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-92% +updated-3d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 75/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-06-18; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 6 of 6 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 1,170 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 25 (weight 15)

- warn `stability.changes`: 6 tool changes in 30 days
- fail `stability.rug_pull`: 1 tools kept their name but changed most of their description in 30 days; review before trusting them

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 6, about 1,170 tokens to load them all
- tool set hash: 524bc82364d84dbc3e1d8a5bf9de66e8
- tools last changed: 2026-10-17T09:13:12.746Z
- badge: [![protogrid quality](https://protogrid.dev/badge/dev.craftery/tools.svg)](https://protogrid.dev/servers/dev.craftery/tools)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-17 `convert_timestamp` changed (title, description, annotations)
  - before: 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.
  - after: Converts between Unix epoch timestamps and human-readable dates. 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.
- 2026-10-17 `hash_text` changed (title, description, annotations) **meaning changed**
  - before: 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.
  - after: Computes 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). Stateless; input is not stored.
- 2026-10-17 `generate_uuid` changed (title, description, annotations)
  - before: 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.
  - after: Generates cryptographically random UUIDs: v4 (random), v7 (RFC 9562 time-ordered; batches stay strictly ordered), or NIL. Supports uppercase, hyphen-less, and braced formatting. 1–100 per call.
- 2026-10-17 `swiftui_color` changed (title, description, annotations)
  - before: 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.
  - after: Generates 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.
- 2026-10-17 `check_contrast` changed (title, description, annotations)
  - before: 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.
  - after: Computes the exact WCAG 2.1 contrast ratio between a foreground and background color (relative-luminance formula) and reports AA/AAA pass-fail for normal text (4.5 / 7), large text (3 / 4.5), and UI components (3).
- 2026-10-17 `convert_color` changed (title, description, annotations)
  - before: 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.
  - after: Converts a color into 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. Applies each platform's alpha byte order (RRGGBBAA on the web, AARRGGBB on Android/Compose/Flutter).

Full history: https://api.protogrid.dev/v1/servers/dev.craftery%2Ftools/changes

## Remotes

- https://craftery.dev/mcp (streamable-http, auth none, reachable true, uptime30d 0.91818184)

## Packages

_none_

## Tools (6)

- `check_contrast`: Computes the exact WCAG 2.1 contrast ratio between a foreground and background color (relative-luminance formula) and reports AA/AAA pass-fail for normal text (4.5 / 7), large text (3 / 4.5), and UI components (3).
- `convert_color`: Converts a color into 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. Applies each platform's alpha byte order (RRGGBBAA on the web, AARRGGBB on Android/Compose/Flutter).
- `convert_timestamp`: Converts between Unix epoch timestamps and human-readable dates. 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.
- `generate_uuid`: Generates cryptographically random UUIDs: v4 (random), v7 (RFC 9562 time-ordered; batches stay strictly ordered), or NIL. Supports uppercase, hyphen-less, and braced formatting. 1–100 per call.
- `hash_text`: Computes 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). Stateless; input is not stored.
- `swiftui_color`: Generates 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.