recon-driven sql composer; pick → compose → execute; llm out of structural sql

api/composer/__init__.py

@@ -0,0 +1,26 @@
+"""Recon-driven SQL composer.
+
+The LLM picks a *shape* (which metric, which dimensions, which filters);
+the composer walks recon and emits the SQL deterministically. Column–table
+binding, joins, and quoting are graph traversals, not LLM guesses.
+
+See `def/schema-as-constraint.md` for the architectural argument.
+"""
+
+from api.composer.types import (
+    ComposeResult,
+    Filter,
+    OrderBy,
+    Pick,
+    PickValidationError,
+)
+from api.composer.compose import compose
+
+__all__ = [
+    "compose",
+    "ComposeResult",
+    "Filter",
+    "OrderBy",
+    "Pick",
+    "PickValidationError",
+]