Fabric now supports YAML configuration files for commonly used options. This allows users to persist settings and share configurations across multiple runs.

Use the --config flag to specify a YAML configuration file:

fabric --config ~/.config/fabric/config.yaml "Tell me about APIs"

1. CLI flags (highest priority)
2. YAML config values
3. Default values (lowest priority)

# Model selection model: gpt-4 modelContextLength: 4096 # Model parameters temperature: 0.7 topp: 0.9 presencepenalty: 0.0 frequencypenalty: 0.0 seed: 42 # Pattern selection pattern: analyze # Use pattern name or filename # Feature flags stream: true raw: false

• Only long flag names are supported in YAML (e.g., temperature not -t)
• CLI flags always override YAML values
• Unknown YAML declarations are ignored
• If a declaration appears multiple times in YAML, the last one wins
• The order of YAML declarations doesn't matter

The following string-to-type conversions are supported:

• String to number: "42" → 42
• String to float: "42.5" → 42.5
• String to boolean: "true" → true

# ~/.config/fabric/config.yaml model: gpt-4 temperature: 0.8 pattern: analyze stream: true topp: 0.95 presencepenalty: 0.1 frequencypenalty: 0.2

# Override temperature from config fabric --config ~/.config/fabric/config.yaml --temperature 0.9 "Query"