diff --git a/crates/ecp-analyzer/src/post_process/schema_field_mirrors.rs b/crates/ecp-analyzer/src/post_process/schema_field_mirrors.rs
index b9e015b56..7a0f0576e 100644
--- a/crates/ecp-analyzer/src/post_process/schema_field_mirrors.rs
+++ b/crates/ecp-analyzer/src/post_process/schema_field_mirrors.rs
@@ -40,6 +40,7 @@ use crate::resolution::index::SymbolTable;
 use ecp_core::analyzer::types::{LocalGraph, SchemaType};
 use ecp_core::graph::{Edge, Node, NodeKind, RelType};
 use ecp_core::pool::StringPool;
+use ecp_core::uid;
 use rustc_hash::FxHashMap;
 
 /// Promote `RawSchemaField`s to `SchemaField` Nodes + emit `HasProperty`
@@ -96,23 +97,28 @@ pub fn emit_edges(
                 continue;
             };
 
-            // UID format: stable across reindex; includes framework so
-            // cross-framework mirrors with same (owner, name) get distinct
-            // UIDs. Format mirrors File-node UID convention.
-            let uid_str = format!(
-                "SchemaField:{:?}:{}.{}:{}",
-                raw_sf.framework, owner_name, field_name, path_str
+            // UID: T1-5 canonical xxh3-64 over (kind, path, owner, name).
+            // owner_class is included so cross-framework mirrors with the same
+            // (owner, name) but different SchemaField nodes get distinct UIDs
+            // via path / owner disambiguation upstream.
+            let node_uid = uid::compute(
+                NodeKind::SchemaField,
+                &path_str,
+                Some(owner_name),
+                field_name,
             );
-            let uid_ref = string_pool.add(&uid_str);
             let name_ref = string_pool.add(field_name);
+            let owner_ref = string_pool.add(owner_name);
             let sf_idx = nodes.len() as u32;
             nodes.push(Node {
-                uid: uid_ref,
+                uid: node_uid,
                 name: name_ref,
                 file_idx,
                 kind: NodeKind::SchemaField,
                 span: raw_sf.span,
                 community_id: 0,
+                owner_class: owner_ref,
+                content_hash: 0,
             });
 
             // HasProperty: <Class> -> <SchemaField>. Non-heuristic
diff --git a/crates/ecp-analyzer/src/protobuf/parser.rs b/crates/ecp-analyzer/src/protobuf/parser.rs
index 502bc5afe..6bc6fe3e9 100644
--- a/crates/ecp-analyzer/src/protobuf/parser.rs
+++ b/crates/ecp-analyzer/src/protobuf/parser.rs
@@ -8,7 +8,6 @@ use super::schema_extractors::{
 };
 use ecp_core::analyzer::provider::LanguageProvider;
 use ecp_core::analyzer::types::{LocalGraph, RawSchemaField};
-use ecp_core::pool::StringPool;
 use std::path::Path;
 
 pub struct ProtobufProvider;
@@ -28,8 +27,7 @@ impl LanguageProvider for ProtobufProvider {
         let text = std::str::from_utf8(source)
             .map_err(|e| anyhow::anyhow!("protobuf: UTF-8 decode error in {:?}: {}", path, e))?;
 
-        let mut pool = StringPool::new();
-        let fields = extract_proto_fields(text, &mut pool);
+        let fields = extract_proto_fields(text);
         let schema_fields = (!fields.is_empty()).then(|| fields.into_boxed_slice());
 
         Ok(LocalGraph {
@@ -48,7 +46,7 @@ impl LanguageProvider for ProtobufProvider {
 /// - `depth`: brace nesting depth.  A top-level `message` bumps depth to 1;
 ///   any nested `{` (including nested messages, oneofs, options) bumps it
 ///   further.  Fields are only emitted when `depth == 1`.
-fn extract_proto_fields(text: &str, pool: &mut StringPool) -> Vec<RawSchemaField> {
+fn extract_proto_fields(text: &str) -> Vec<RawSchemaField> {
     let mut out: Vec<RawSchemaField> = Vec::new();
     let mut current_message: Option<String> = None;
     let mut depth: u32 = 0;
@@ -102,9 +100,9 @@ fn extract_proto_fields(text: &str, pool: &mut StringPool) -> Vec<RawSchemaField
             let type_class = classify_protobuf_type(type_token);
             let span = (row, 0u32, row, line.len() as u32);
             out.push(RawSchemaField {
-                name: pool.add(&field_name),
+                name: field_name.into_boxed_str(),
                 type_class,
-                owner_class: pool.add(owner),
+                owner_class: Box::from(owner.as_str()),
                 framework: PROTOBUF_FRAMEWORK,
                 span,
             });
diff --git a/crates/ecp-analyzer/src/python/parser.rs b/crates/ecp-analyzer/src/python/parser.rs
index ba24aed6e..308642fd6 100644
--- a/crates/ecp-analyzer/src/python/parser.rs
+++ b/crates/ecp-analyzer/src/python/parser.rs
@@ -15,6 +15,7 @@ use ecp_core::analyzer::types::{
     RawRoute, RawTxScope,
 };
 use ecp_core::graph::{FileCategory, NodeKind};
+use ecp_core::pool::StringPool;
 use std::path::Path;
 use streaming_iterator::StreamingIterator;
 use tree_sitter::{Node, Query, QueryCursor};