default/openevolve_world_knowledge

# OpenEvolve + World Knowledge.
# The OpenEvolve half is its bundled preset VERBATIM (scaffolds/openevolve/config.yaml) — the two
# methods must differ by the layer alone, so nothing else may drift between the files.
seed: 42                             # OpenEvolve DatabaseConfig.random_seed default
general:
  max_iterations: 100
  max_solution_length: 10000         # OpenEvolve Config.max_code_length default (over-length children rejected)
population:                          # MapElitesIslandsPopulation
  num_islands: 5
  archive_size: 100
  population_size: 1000
  feature_dimensions: [complexity, diversity]
  feature_bins: 10
  migration_interval: 50            # migrate every N island generations
  migration_rate: 0.1              # fraction of each island migrated to ring neighbours
  diversity_reference_size: 20
selection_policy:                   # OpenEvolveSelectionPolicy
                                    # (also reads population.num_islands + population.feature_dimensions)
  exploration_ratio: 0.2           # P(uniform-random parent from current island)
  exploitation_ratio: 0.7          # P(fitness-weighted parent from the archive)
  elite_selection_ratio: 0.1       # top fraction of island used as inspirations
  num_inspirations: 3              # prompt.num_top_programs (the PromptBuilder reuses this count)
  num_diverse: 2                   # prompt.num_diverse_programs
proposer:                          # OpenEvolve LLMConfig defaults (apply only to a model built from this preset)
  top_p: 0.95
  max_tokens: 4096
  timeout: 60
world_knowledge:                   # the layer; every knob here is one the method reads
  enabled: true
  gate: llm                        # G — the method. "always" removes the gate; "heuristic" is the
                                   # random-rate control at retrieve_probability.
  query_evolution_steps: 3         # 1 = one search + listwise LCLM reranking, no query evolution;
                                   # 2+ = M construct→search→rerank→reflect rounds.
  use_search_database: true        # false = stateless retrieval (no selection, persistence, or credit)
  select_policy: delta             # delta | relevance_novelty (LLM utility top-K) | recency | full
  select_num: 6                    # K entries shown to the gate and the query operator
  documents_per_entry: 3
  max_document_chars: 2000         # per-document cap in the evidence block
  rerank_max_document_chars: 8000  # per-candidate cap in the long-context reranking prompt
  rerank_relevance_weight: 0.5     # direct, specific, actionable usefulness
  rerank_novelty_weight: 0.5       # marginal information beyond prior and higher-ranked evidence
  gate_prompt: retrieval_gating_w_search_database
  gate_prompt_no_search_database: retrieval_gating_wo_search_database
  query_prompt: query_construction_w_search_database
  query_prompt_no_search_database: query_construction_wo_search_database
  rerank_prompt: reranking_w_search_database
  rerank_prompt_no_search_database: reranking_wo_search_database
  reflect_prompt: query_self_reflection
  evidence_block_prompt: retrieved_evidence_block_wo_image  # omit Tavily images from mutation prompt
  history_programs: 5              # fallback only — OpenEvolve renders its own evolution history and
                                   # the layer reuses that, so the gate reads what the mutator reads
  grounding: none                  # "offline" (grounding_file: a jsonl seed) or "online" (one
                                   # pre-loop search) for the RAG-grounded setting
  retrieval_backend: tavily        # tavily (default) | claude_code
  tavily:                          # Search(q) — needs TAVILY_API_KEY + open-galapagos[web-search]
    search_depth: advanced
    max_results: 5                 # top-K documents kept per search
    include_answer: true
    include_raw_content: markdown  # the page itself, not only the snippet
  claude_code:                     # selected only when retrieval_backend=claude_code
    cli_path: claude               # uses the host CLI's existing login
    model: claude-opus-4-8          # explicit null opts back into the CLI default
    effort: xhigh                   # explicit null opts back into the model default
    timeout: 120
    max_turns: 2                  # minimum 2; use 3+ when allow_web_fetch=true
    max_results: 5
    allow_web_fetch: false         # WebSearch only by default; true also permits bounded WebFetch
    max_budget_usd: null