mise Configuration as Single Source of Truth

Use mise [env] as centralized configuration with backward-compatible defaults.

Self-Evolving Skill: This skill improves through use. If instructions are wrong, parameters drifted, or a workaround was needed — fix this file immediately, don't defer. Only update for real, reproducible issues.

When to Use This Skill

Use this skill when:

• Centralizing environment variables in mise.toml
• Setting up Python venv auto-creation with mise
• Implementing hub-spoke configuration for monorepos
• Creating backward-compatible environment patterns

Core Principle

Define all configurable values in .mise.toml [env] section. Scripts read via environment variables with fallback defaults. Same code path works WITH or WITHOUT mise installed.