LITELLM_PROVIDER=anthropic LITELLM_MODEL_NAME=claude-opus-4-6 API_BASE= API_KEY= HARNESS_REASONING_EFFORT=medium HARNESS_MODEL_RETRIES=5 HARNESS_SYSTEM_REINJECTION_INTERVAL=20 HARNESS_MAX_TOKENS=99999 HARNESS_MAX_ITERATIONS=99999 HARNESS_TEMPERATURE=1 HARNESS_ARTIFACTS_DIR=artifacts HARNESS_CONTEXT_COMPACTION_THRESHOLD_CHARS=500000