diff --git a/.agents/skills/verify-interface/features/atomic-execution.md b/.agents/skills/verify-interface/features/atomic-execution.md
index 5e4b938..b727730 100644
--- a/.agents/skills/verify-interface/features/atomic-execution.md
+++ b/.agents/skills/verify-interface/features/atomic-execution.md
@@ -1,6 +1,8 @@
 ---
 covers:
   - src/atomic.ts
+  - src/staged-query/common.ts
+  - src/staged-query/stages.ts
 docs:
   - docs/2.operations/8.atomic_mutations.md
 journeys:
diff --git a/.agents/skills/verify-interface/features/atomic-requests.md b/.agents/skills/verify-interface/features/atomic-requests.md
index 4714dfc..03b6816 100644
--- a/.agents/skills/verify-interface/features/atomic-requests.md
+++ b/.agents/skills/verify-interface/features/atomic-requests.md
@@ -1,6 +1,8 @@
 ---
 covers:
   - src/staged-query/atomic.ts
+  - src/staged-query/common.ts
+  - src/staged-query/stages.ts
 docs:
   - docs/2.operations/8.atomic_mutations.md
 journeys:
diff --git a/.agents/skills/verify-interface/features/datums.md b/.agents/skills/verify-interface/features/datums.md
index b97c349..1d1440d 100644
--- a/.agents/skills/verify-interface/features/datums.md
+++ b/.agents/skills/verify-interface/features/datums.md
@@ -1,6 +1,8 @@
 ---
 covers:
   - src/staged-query/datum.ts
+  - src/staged-query/common.ts
+  - src/staged-query/stages.ts
 docs:
   - docs/1.query_types/8.datum.md
 journeys:
diff --git a/.agents/skills/verify-interface/features/entry-points.md b/.agents/skills/verify-interface/features/entry-points.md
index 9cf0689..84134d0 100644
--- a/.agents/skills/verify-interface/features/entry-points.md
+++ b/.agents/skills/verify-interface/features/entry-points.md
@@ -3,6 +3,7 @@ covers:
   - package.json
   - src/index.ts
   - src/common.ts
+  - src/staged-query/common.ts
   - src/datum.ts
   - src/selection.ts
   - src/stream.ts
diff --git a/.agents/skills/verify-interface/features/execution.md b/.agents/skills/verify-interface/features/execution.md
index 25321ea..4ff8688 100644
--- a/.agents/skills/verify-interface/features/execution.md
+++ b/.agents/skills/verify-interface/features/execution.md
@@ -1,6 +1,8 @@
 ---
 covers:
   - src/query.ts
+  - src/staged-query/common.ts
+  - src/staged-query/stages.ts
 docs:
   - docs/1.query_types/7.query.md
   - docs/1.query_types/1.index.md
diff --git a/.agents/skills/verify-interface/features/expressions-arithmetic.md b/.agents/skills/verify-interface/features/expressions-arithmetic.md
index edc40f5..77e5fee 100644
--- a/.agents/skills/verify-interface/features/expressions-arithmetic.md
+++ b/.agents/skills/verify-interface/features/expressions-arithmetic.md
@@ -1,6 +1,8 @@
 ---
 covers:
   - src/staged-query/valueproxy.ts
+  - src/staged-query/common.ts
+  - src/staged-query/stages.ts
 docs:
   - docs/1.query_types/9.valueproxy.md
 journeys:
diff --git a/.agents/skills/verify-interface/features/expressions-arrays.md b/.agents/skills/verify-interface/features/expressions-arrays.md
index cc72e3b..d0b58c6 100644
--- a/.agents/skills/verify-interface/features/expressions-arrays.md
+++ b/.agents/skills/verify-interface/features/expressions-arrays.md
@@ -1,6 +1,8 @@
 ---
 covers:
   - src/staged-query/valueproxy.ts
+  - src/staged-query/common.ts
+  - src/staged-query/stages.ts
 docs:
   - docs/1.query_types/9.valueproxy.md
 journeys:
diff --git a/.agents/skills/verify-interface/features/expressions-dates.md b/.agents/skills/verify-interface/features/expressions-dates.md
index 754e8c6..94af157 100644
--- a/.agents/skills/verify-interface/features/expressions-dates.md
+++ b/.agents/skills/verify-interface/features/expressions-dates.md
@@ -1,6 +1,8 @@
 ---
 covers:
   - src/staged-query/valueproxy.ts
+  - src/staged-query/common.ts
+  - src/staged-query/stages.ts
 docs:
   - docs/1.query_types/9.valueproxy.md
 journeys:
diff --git a/.agents/skills/verify-interface/features/expressions-logic.md b/.agents/skills/verify-interface/features/expressions-logic.md
index 6f4be47..ba1cb22 100644
--- a/.agents/skills/verify-interface/features/expressions-logic.md
+++ b/.agents/skills/verify-interface/features/expressions-logic.md
@@ -1,6 +1,8 @@
 ---
 covers:
   - src/staged-query/valueproxy.ts
+  - src/staged-query/common.ts
+  - src/staged-query/stages.ts
 docs:
   - docs/1.query_types/9.valueproxy.md
   - docs/2.operations/6.filtering.md
diff --git a/.agents/skills/verify-interface/features/expressions-text.md b/.agents/skills/verify-interface/features/expressions-text.md
index 503a76d..edd00f4 100644
--- a/.agents/skills/verify-interface/features/expressions-text.md
+++ b/.agents/skills/verify-interface/features/expressions-text.md
@@ -1,6 +1,8 @@
 ---
 covers:
   - src/staged-query/valueproxy.ts
+  - src/staged-query/common.ts
+  - src/staged-query/stages.ts
 docs:
   - docs/1.query_types/9.valueproxy.md
 journeys:
diff --git a/.agents/skills/verify-interface/features/joins.md b/.agents/skills/verify-interface/features/joins.md
index 01368eb..2208384 100644
--- a/.agents/skills/verify-interface/features/joins.md
+++ b/.agents/skills/verify-interface/features/joins.md
@@ -1,6 +1,8 @@
 ---
 covers:
   - src/staged-query/stream.ts
+  - src/staged-query/common.ts
+  - src/staged-query/stages.ts
 docs:
   - docs/1.query_types/5.stream.md
   - docs/2.operations/7.lookup.md
diff --git a/.agents/skills/verify-interface/features/kinds.md b/.agents/skills/verify-interface/features/kinds.md
index 6aa0da8..2542620 100644
--- a/.agents/skills/verify-interface/features/kinds.md
+++ b/.agents/skills/verify-interface/features/kinds.md
@@ -3,6 +3,8 @@ covers:
   - src/staged-query/kind.ts
   - src/staged-query/query.ts
   - src/staged-query/valueproxy-kind.ts
+  - src/staged-query/common.ts
+  - src/staged-query/stages.ts
 docs:
   - docs/1.query_types/1.index.md
 journeys:
diff --git a/.agents/skills/verify-interface/features/schemas.md b/.agents/skills/verify-interface/features/schemas.md
index 26d55b5..ce90788 100644
--- a/.agents/skills/verify-interface/features/schemas.md
+++ b/.agents/skills/verify-interface/features/schemas.md
@@ -2,6 +2,8 @@
 covers:
   - src/schema.ts
   - src/staged-query/schema.ts
+  - src/staged-query/common.ts
+  - src/staged-query/stages.ts
 docs:
   - docs/2.operations/2.database_management.md
   - docs/3.results/5.database_changes.md
diff --git a/.agents/skills/verify-interface/features/staged-query.md b/.agents/skills/verify-interface/features/staged-query.md
index 892a15d..ddfe4cb 100644
--- a/.agents/skills/verify-interface/features/staged-query.md
+++ b/.agents/skills/verify-interface/features/staged-query.md
@@ -2,6 +2,7 @@
 covers:
   - src/staged-query/index.ts
   - src/staged-query/common.ts
+  - src/staged-query/stages.ts
 docs:
   - docs/index.md
 journeys:
diff --git a/.agents/skills/verify-interface/features/streams.md b/.agents/skills/verify-interface/features/streams.md
index 9c0cfbf..3cffd54 100644
--- a/.agents/skills/verify-interface/features/streams.md
+++ b/.agents/skills/verify-interface/features/streams.md
@@ -1,6 +1,8 @@
 ---
 covers:
   - src/staged-query/stream.ts
+  - src/staged-query/common.ts
+  - src/staged-query/stages.ts
 docs:
   - docs/1.query_types/5.stream.md
   - docs/2.operations/6.filtering.md
diff --git a/.agents/skills/verify-interface/features/tables-read.md b/.agents/skills/verify-interface/features/tables-read.md
index 7de871a..ee937f2 100644
--- a/.agents/skills/verify-interface/features/tables-read.md
+++ b/.agents/skills/verify-interface/features/tables-read.md
@@ -1,6 +1,8 @@
 ---
 covers:
   - src/staged-query/selection.ts
+  - src/staged-query/common.ts
+  - src/staged-query/stages.ts
 docs:
   - docs/1.query_types/2.table.md
   - docs/2.operations/3.table_operations.md
diff --git a/.agents/skills/verify-interface/features/tables-write.md b/.agents/skills/verify-interface/features/tables-write.md
index 3f3eebc..8e52c7e 100644
--- a/.agents/skills/verify-interface/features/tables-write.md
+++ b/.agents/skills/verify-interface/features/tables-write.md
@@ -1,6 +1,8 @@
 ---
 covers:
   - src/staged-query/selection.ts
+  - src/staged-query/common.ts
+  - src/staged-query/stages.ts
 docs:
   - docs/2.operations/4.crud.md
   - docs/1.query_types/3.selection.md