Adds the RQ3 agent-selector backend as a reproducible, offline measurement
decision — not relay/data-plane traffic. Containment is untouched: the model
query is a local call to localhost:11434.
- selector.py: SelectorPolicy ABC seam; static/random/agent(heuristic) built-ins;
make_policy() resolves (strategy, agent_backend); run_selection writes a
write-once selector.json provenance sidecar.
- agent_selector.py: OllamaAgentPolicy — reproducible confirmatory arm
(temp=0 + per-run seed, decisions cached keyed by (seed, state-hash),
deterministic heuristic fallback on any model/parse failure, model weights
digest pinned for the manifest). ClaudeExploratoryPolicy — EXPLORATORY-only
stub: makes no paid call, refuses to serve as a confirmatory backend.
- provenance.py: additive selector_backend field so an agent-selected run pins
the exact model id + weights digest.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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