diff --git a/builder.ts b/builder.ts
index aa01d64..25b5630 100644
--- a/builder.ts
+++ b/builder.ts
@@ -36,7 +36,7 @@ import {
   type VariableName,
   type PatternValue,
   type SparqlTerm,
-  SparqlExpr,
+  type SparqlExpr,
 } from './sparql.ts'
 import { createExecutor, type BindingMap, type ExecutionConfig, type QueryResult } from './executor.ts'
 import { bind, filter, optional } from './utils.ts'
diff --git a/executor.ts b/executor.ts
index ea152b1..bb6eb0d 100644
--- a/executor.ts
+++ b/executor.ts
@@ -1,6 +1,7 @@
 // executor.ts
 
-import sparql, {
+import {
+  sparql,
   raw,
   uri,
   valuesList,
@@ -888,6 +889,7 @@ export async function fetchProperties(
       const uriValue = binding.uri?.value
       if (!uriValue) continue
 
+      // biome-ignore lint/suspicious/noAssignInExpressions: <explanation>
       const entry = (result[uriValue] ??= {})
 
       requestedProperties.forEach((prop, index) => {
diff --git a/namespaces.ts b/namespaces.ts
index 8877911..9cf0e4d 100644
--- a/namespaces.ts
+++ b/namespaces.ts
@@ -70,7 +70,7 @@ export interface NamespaceLike {
  * )
  * ```
  */
-export const XSD: NamespaceLike = {
+export const XSD: NamespaceLike = /* @__PURE__ */ {
   /** Base namespace for all XML Schema datatypes. */
   _namespace: 'http://www.w3.org/2001/XMLSchema#',
 
@@ -239,7 +239,7 @@ export const XSD: NamespaceLike = {
  *   .where(triple('?list', RDF.rest, RDF.nil))
  * ```
  */
-export const RDF: NamespaceLike = {
+export const RDF: NamespaceLike = /* @__PURE__ */ {
   _namespace: 'http://www.w3.org/1999/02/22-rdf-syntax-ns#',
 
   /** Assigns a class to a resource: `?s rdf:type ?class`. */
@@ -338,7 +338,7 @@ export const RDF: NamespaceLike = {
  *   .where(triple('?sub', RDFS.subClassOf, 'narrative:Product'))
  * ```
  */
-export const RDFS: NamespaceLike = {
+export const RDFS: NamespaceLike = /* @__PURE__ */ {
   _namespace: 'http://www.w3.org/2000/01/rdf-schema#',
 
   /** Human-readable label. */
@@ -413,7 +413,7 @@ export const RDFS: NamespaceLike = {
  * where(triple('?comic', OWL.sameAs, '?externalComic'))
  * ```
  */
-export const OWL: NamespaceLike = {
+export const OWL: NamespaceLike = /* @__PURE__ */ {
   _namespace: 'http://www.w3.org/2002/07/owl#',
 
   // Core classes
@@ -556,7 +556,7 @@ export const OWL: NamespaceLike = {
  *   .optional(triple('?person', FOAF.mbox, '?email'))
  * ```
  */
-export const FOAF: NamespaceLike = {
+export const FOAF: NamespaceLike = /* @__PURE__ */ {
   _namespace: 'http://xmlns.com/foaf/0.1/',
 
   // Core classes
@@ -691,7 +691,7 @@ export const FOAF: NamespaceLike = {
  *   .where(triple('?p', SCHEMA.price, '?price'))
  * ```
  */
-export const SCHEMA: NamespaceLike = {
+export const SCHEMA: NamespaceLike = /* @__PURE__ */ {
   // Note: schema.org now often uses https:// in docs, but http:// IRIs are widely used.
   _namespace: 'http://schema.org/',
 
@@ -872,7 +872,7 @@ export const SCHEMA: NamespaceLike = {
  * **Typical uses**
  * - Inspecting an endpoint’s capabilities before deciding which features to use.
  */
-export const SD: NamespaceLike = {
+export const SD: NamespaceLike = /* @__PURE__ */ {
   _namespace: 'http://www.w3.org/ns/sparql-service-description#',
 
   Service: 'http://www.w3.org/ns/sparql-service-description#Service',
@@ -926,7 +926,7 @@ export const SD: NamespaceLike = {
  * - Validating datasets before loading them into a KG.
  * - Encoding business rules and invariants in RDF form.
  */
-export const SHACL: NamespaceLike = {
+export const SHACL: NamespaceLike = /* @__PURE__ */ {
   _namespace: 'http://www.w3.org/ns/shacl#',
 
   // Core classes
@@ -1014,7 +1014,7 @@ export const SHACL: NamespaceLike = {
  * - Modeling genres, subject headings, tag vocabularies.
  * - Multi-level classification systems for products, story arcs, etc.
  */
-export const SKOS: NamespaceLike = {
+export const SKOS: NamespaceLike = /* @__PURE__ */ {
   _namespace: 'http://www.w3.org/2004/02/skos/core#',
 
   // Core classes
@@ -1091,7 +1091,7 @@ export const SKOS: NamespaceLike = {
  * - Tracking data lineage.
  * - Recording who asserted which statements and when.
  */
-export const PROV: NamespaceLike = {
+export const PROV: NamespaceLike = /* @__PURE__ */ {
   _namespace: 'http://www.w3.org/ns/prov#',
 
   // Core classes
@@ -1140,7 +1140,7 @@ export const PROV: NamespaceLike = {
  * - Size, links, partitions, example resources.
  * - SPARQL endpoints and data dumps.
  */
-export const VOID: NamespaceLike = {
+export const VOID: NamespaceLike = /* @__PURE__ */ {
   _namespace: 'http://rdfs.org/ns/void#',
 
   Dataset: 'http://rdfs.org/ns/void#Dataset',
@@ -1181,7 +1181,7 @@ export const VOID: NamespaceLike = {
  * Dublin Core is a generic metadata vocabulary used all over the web
  * and in many RDF datasets for titles, creators, dates, rights, etc.
  */
-export const DCTERMS: NamespaceLike = {
+export const DCTERMS: NamespaceLike = /* @__PURE__ */ {
   _namespace: 'http://purl.org/dc/terms/',
 
   // Core DC elements (terms flavor)
@@ -1223,7 +1223,7 @@ export const DCTERMS: NamespaceLike = {
  * Simple latitude/longitude/altitude vocabulary for expressing points
  * on Earth (WGS84).
  */
-export const GEO: NamespaceLike = {
+export const GEO: NamespaceLike = /* @__PURE__ */ {
   _namespace: 'http://www.w3.org/2003/01/geo/wgs84_pos#',
 
   SpatialThing:
@@ -1248,7 +1248,7 @@ export const GEO: NamespaceLike = {
  * - Datatypes for geometries (WKT, GML)
  * - Topological relations (within, contains, etc.)
  */
-export const GEOSPARQL: NamespaceLike = {
+export const GEOSPARQL: NamespaceLike = /* @__PURE__ */ {
   _namespace: 'http://www.opengis.net/ont/geosparql#',
 
   // Core classes
@@ -1286,7 +1286,7 @@ export const GEOSPARQL: NamespaceLike = {
  * Defines IRI identifiers for spatial functions like distance, buffer, etc.,
  * used in SPARQL `FILTER` expressions.
  */
-export const GEOF: NamespaceLike = {
+export const GEOF: NamespaceLike = /* @__PURE__ */ {
   _namespace: 'http://www.opengis.net/def/function/geosparql/',
 
   distance:
@@ -1313,7 +1313,7 @@ export const GEOF: NamespaceLike = {
  * structured into RDF). You’ll see these IRIs if you round-trip results
  * via RDF form.
  */
-export const SPARQL_RESULTS: NamespaceLike = {
+export const SPARQL_RESULTS: NamespaceLike = /* @__PURE__ */ {
   _namespace: 'http://www.w3.org/2005/sparql-results#',
 
   ResultSet:
diff --git a/patterns/cypher.ts b/patterns/cypher.ts
index 892dc4e..5afae27 100644
--- a/patterns/cypher.ts
+++ b/patterns/cypher.ts
@@ -106,7 +106,8 @@ export function cypher(
   }
 
   // Then parse and add edge patterns
-  let match
+  let match: RegExpExecArray | null = null;
+  // biome-ignore lint/suspicious/noAssignInExpressions: <explanation>
   while ((match = edgePattern.exec(result)) !== null) {
     const fromIdx = parseInt(match[1])
     const predicate = toPredicateName(match[2])
diff --git a/patterns/objects.ts b/patterns/objects.ts
index b3ffa69..9b73fec 100644
--- a/patterns/objects.ts
+++ b/patterns/objects.ts
@@ -20,15 +20,15 @@ import {
   toVarToken,
   toPredicateName,
   toRawString,
-  raw,
   variable,
+  raw,
+  rawTerm,
+  rawPattern,
   SPARQL_VALUE_BRAND,
   SPARQL_PATTERN_BRAND,
   type SparqlValue,
   type SparqlTerm,
   type PatternValue,
-  rawTerm,
-  rawPattern,
 } from '../sparql.ts'
 import { exprTermString } from '../utils.ts'
 
diff --git a/patterns/triples.ts b/patterns/triples.ts
index 1f5e862..958ebe9 100644
--- a/patterns/triples.ts
+++ b/patterns/triples.ts
@@ -11,8 +11,8 @@
  * @module
  */
 
-import { isSparqlValue, toVarToken, type SparqlExpr, type SparqlTerm } from '../sparql.ts'
-import { raw, toPredicateName, toRawString, type SparqlValue, } from '../sparql.ts'
+import type { SparqlExpr, SparqlTerm } from '../sparql.ts'
+import { raw, toPredicateName, toRawString, isSparqlValue, toVarToken, } from '../sparql.ts'
 import { termString, type ExpressionPrimitive } from '../utils.ts'
 
 // ============================================================================
diff --git a/sparql.ts b/sparql.ts
index 5b9f6a9..ac0e980 100644
--- a/sparql.ts
+++ b/sparql.ts
@@ -602,6 +602,7 @@ export function escapeString(
   str: string,
   quote: '"' | "'" = '"',
 ): string {
+  // biome-ignore lint/suspicious/noControlCharactersInRegex: <explanation>
   return str.replace(/[\u0000-\u001F\\'"]/g, function (ch: string): string {
     // Always escape backslash
     if (ch === '\\') return '\\\\'