aster-config

name	aster-config
description	Reference for aster.yaml, covering review models, analyzers, focus areas, include/exclude globs, min_confidence, and the permissions block that gates edits. Use when creating or editing aster.yaml, choosing hypothesis/verify models, enabling semgrep or ast-grep, or configuring edit permissions.

Configuring Aster (aster.yaml)

aster init writes aster.yaml at the repo root (or ~/.config/aster/aster.yaml with -g). Every field is optional. Precedence: CLI flags > shell env > aster.yaml > built-in defaults. API keys are NEVER read from this file; they come from ASTER_API_KEY or the key stored by aster init / aster login, so aster.yaml is safe to commit.

Review block

review:
  model: openai/gpt-4o-mini                      # fallback for stages with no override
  base_url: https://openrouter.ai/api/v1         # any OpenAI-compatible provider
  hypothesis_model: deepseek/deepseek-v4-flash   # cheap, high-recall pass
  verify_model: anthropic/claude-sonnet-5        # independent adversarial verify
  min_confidence: 0.6                            # drop findings below this (0.0-1.0)
  max_diff_bytes: 200000                         
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