diff --git a/backend/src/db-kysely/CONVENTIONS.md b/backend/src/db-kysely/CONVENTIONS.md
index 9e9599f..891ae45 100644
--- a/backend/src/db-kysely/CONVENTIONS.md
+++ b/backend/src/db-kysely/CONVENTIONS.md
@@ -37,7 +37,7 @@ Kysely uses the `pg` driver directly, so a Postgres SQLSTATE stays on `err.code`
 
 ## The worked example
 
-`buildItemFilterSql` is the hardest query in the codebase — six optional clauses composed at run time, a recursive CTE for the category subtree, an `ANY(...::int[])` tag match with a count equality, and array parameters. It was the #216 spike's target and #297's, and it is here rather than in a source file because nothing imports it:
+`buildItemFilterSql` is the hardest query in the codebase — six optional clauses composed at run time, a recursive CTE for the category subtree, an `ANY(...::int[])` tag match with a count equality, and array parameters. It was the #216 spike's target and #297's, and it is still raw `pg` in `src/itemFilters.ts`, used by both the storefront and the admin listing. The conversion below is an example rather than a source file: committing it as one would put a second copy of a live function in `src/` that nothing calls, which is precisely what the #216 spike became.
 
 ```ts
 if (filters.categoryIds.length) {