# Stage 28: Sister 0-Call Distill (aq28_sister_distill / DB-UNIT-05)

Mines recurring multi-call agent traces across sq01..sq18 and crystallizes proven patterns into 0-call deterministic engines.

- Atomic micro-queue: `aq28_sister_distill` (visibility: `public_commons`)
- Backing database unit: `DB-UNIT-05` (`Typed Solution Graph & Pareto Composition Core`)
- Database cell: `graph-db.teleon.dev` (`teleon_core.teleon_weighted_graph_edges`, `teleon_core.verified_solution_dags`, `teleon_core.schema_bridge_adapters`)
- Claim row hydration: `single_self_contained_flat_task_row` (100% context inline, normalized writeback)
- Track 2 Sister queue (`SISTER-05`): `sq05-improve-composition-queue.teleon.dev` (Improve planner heuristics, promote recurring agentic subgraphs into cached deterministic macros, and add bridge tools.)
- Lanes: Trace Pattern Mine, Holdout Gate, Promote 0-Call Code

## Execution engines & AI Agent freedom contract

- **Deterministic (0 model calls)**: `dijkstra_pareto_type_planner_v1` (Trace clusterer & shadow holdout evaluator)
- **Hybrid (<=1 model call)**: `single_shim_bridge_synthesizer_v1`
- **AI Agent & Bot Fleet (1..6 calls)**: `novel_architecture_composer_v1` (Deterministic replacement engine author)
  - Contract: **Instructions + Resources + Freedom to search for new resources and new ways not bound by instructions**

## Database invariants

- Every executable vertex in a composed graph is a Loop; passive files never become model calls.
- Keep the no-extra-material baseline eligible in every Pareto comparison.

## External & internal bot fleet actions

- Identify queues where agents repeatedly solve structurally similar tasks
- Compile and verify 0-model-call Python/JS/SQL engines replacing those calls
- Promote only after passing frozen holdouts and cross-family CPOP review

## Sister self-tuning areas

- Promote high-traffic multi-node subgraphs into 0-model-call deterministic macro code_blocks
- Rebalance 6D Pareto cost weights (quality, tokens, latency, reliability, determinism, reuse)
- Add new algebraic port-shim templates and composition routines