name: meta_harness
display_name: Meta-Harness
organization: "Meta-Harness"
type: test_time_search
summary: "A minimal outer loop that delegates selection AND mutation to a skill-steered proposer over an append-only candidate history, returning a (score x cost) Pareto frontier."
source: "Meta-Harness: End-to-End Optimization of Model Harnesses (Stanford IRIS Lab, arXiv:2603.28052); reference implementation in references/test_time_search_scaffolds/meta_harness (text_classification example)"
tags: [minimal-outer-loop, skill-steered, pareto-frontier, append-only, proposer-delegated, coding-agent-port]
license: MIT
controller: galapagos.scaffolds.meta_harness.scaffold.MetaHarnessScaffold
components:
  population: {kind: append_only_pareto}
  selection_policy: {kind: proposer_delegated_frontier_anchor}
  prompt_builder: {kind: skill_steered_filesystem_view}
  proposer: {kind: k_candidate_queue}
  evaluator: {kind: task}
  memory: {kind: evolution_summary_reports}
model:
  default: "openai/gpt-5.5"
  host: openrouter