Utilities

Overview

Utilities provides native shell one-liners for common operations that would otherwise require external MCP server dependencies. All recipes use tools available on macOS and Linux by default: bash, python3, openssl, jq. The agent picks the appropriate recipe instead of calling an external service.

Recipe Categories

• Date & Time — ISO dates, epoch conversion, timezone conversion, date arithmetic (macOS and Linux variants)
• Hashing — SHA-256, SHA-512, MD5 via openssl, file checksums
• Random & UUID — UUID v4, random hex/base64 strings, cryptographic random integers
• Base64 — encode/decode with cross-platform notes (macOS uses -D, Linux uses -d)
• URL Encoding — encode/decode via Python urllib
• Text Case Conversion — camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, and CamelCase-to-snake conversion
• Validation — email, URL, IPv4, UUID regex validation
• JSON — pretty-print, minify, validate, extract fields via jq
• Password Generation — alphanumeric, with special characters, passphrase-style
• Color Conversion — hex to RGB, RGB to hex, hex to HSL, HSL to hex

Fragment Routing

The skill is split into 12 focused fragments. Agents load only the fragment needed: datetime, system-info, crypto, encoding, text-transform, validation, json, formatting, datarim-sync, ga4-admin, ssh-deploy (base64 pattern for heredoc-safe remote execution), and recovery (restoring lost runtime files from compacted session context).

Framework Utilities

Includes Datarim-specific recipes: syncing framework files between $HOME/.claude/ and the Datarim repo, counting framework components from the filesystem, GA4 Admin API setup, SSH deploy via base64 encoding, and disaster recovery of lost runtime files.

When It's Used

Loaded on demand when an agent needs a utility operation. The skill prevents unnecessary external dependencies and ensures consistent behavior across macOS and Linux environments.