diff --git a/server/src/lsp_server.py b/server/src/lsp_server.py
index 09b3286..aa33920 100644
--- a/server/src/lsp_server.py
+++ b/server/src/lsp_server.py
@@ -9,7 +9,7 @@ import os
 import pathlib
 import re
 import sys
-from typing import Any, List, Optional, Tuple
+from typing import Any, Optional
 import operator
 from functools import reduce
 
@@ -49,7 +49,6 @@ from lsp_tclserver import TclLanguageServer
 
 WORKSPACE_SETTINGS = {}
 GLOBAL_SETTINGS = {}
-RUNNER = pathlib.Path(__file__).parent / "lsp_runner.py"
 
 
 MAX_WORKERS = 5
@@ -58,9 +57,7 @@ LSP_SERVER = TclLanguageServer(name="NX Postprocessor Support", version="0.0.1",
 # **********************************************************
 # Tool specific code goes below this.
 # **********************************************************
-TOOL_MODULE = "nx-post-support"
-TOOL_DISPLAY = "NX Postprocessor Support"
-TOOL_ARGS = []  # default arguments always passed to your tool.
+
 
 # Delete "Linting features" section if your tool is NOT a linter.
 # **********************************************************
@@ -87,7 +84,7 @@ def did_save(params: lsp.DidSaveTextDocumentParams) -> None:
 
 
 @LSP_SERVER.feature(lsp.TEXT_DOCUMENT_DID_CLOSE)
-def did_close(params: lsp.DidCloseTextDocumentParams) -> None:
+def did_close(_: lsp.DidCloseTextDocumentParams) -> None:
     """LSP handler for textDocument/didClose request."""
 
 
@@ -125,12 +122,9 @@ def document_diagnostic(params: lsp.DocumentDiagnosticParams):
 
 
 @LSP_SERVER.feature(lsp.TEXT_DOCUMENT_COMPLETION)
-def on_completion(params: lsp.CompletionParams) -> list[lsp.CompletionItem]:
+def on_completion(params: lsp.CompletionParams) -> lsp.CompletionList:
     _ = LSP_SERVER.workspace.get_text_document(params.text_document.uri)
-    poco = []
-
-    for key, value in LSP_SERVER.poco_completion.items():
-        poco.extend(value)
+    poco = [item for items in LSP_SERVER.poco_completion.values() for item in items]
     items = standard_items.tcl_keyword_list + standard_items.nx_procs + standard_items.nx_variables + poco
     return lsp.CompletionList(is_incomplete=False, items=items)
 
@@ -146,183 +140,10 @@ def on_completion(params: lsp.CompletionParams) -> list[lsp.CompletionItem]:
 
 @LSP_SERVER.feature(lsp.TEXT_DOCUMENT_DOCUMENT_SYMBOL)
 def document_symbols(params: lsp.DocumentSymbolParams):
+    from tools.document_symbols import build_document_symbols
+
     doc = LSP_SERVER.workspace.get_text_document(params.text_document.uri)
-    lines = doc.source.split("\n")
-
-    # Regex patterns similar to the previous TS implementation
-    ns_re = re.compile(r"^\s*namespace\s+eval\s+([^\s\{]+)")
-    proc_re = re.compile(r"^\s*proc\s+([^\s\{]+)\s+\{.*\}\s+\{")
-    set_re = re.compile(r"^\s*set\s+([^\s\}]+)")
-    event_start_re = re.compile(r"^\s*LIB_GE_command_buffer_edit_(prepend|append|insert|replace)\b")
-    event_close_inline_re = re.compile(r"^\s*\}\s*(\S+)\s*.*$")
-    event_close_brace_only_re = re.compile(r"^\s*\}\s*$")
-    event_name_line_re = re.compile(r"^\s*([A-Za-z_][A-Za-z0-9_]*)\b")
-    pending_event = None
-
-    class Scope:
-        def __init__(self, name: str, symbol: lsp.DocumentSymbol, start_line: int):
-            self.name = name
-            self.symbol = symbol
-            self.start_line = start_line
-            self.brace_count = 0
-
-    root_symbol = lsp.DocumentSymbol(
-        name="root",
-        detail="",
-        kind=lsp.SymbolKind.Namespace,
-        range=lsp.Range(start=lsp.Position(0, 0), end=lsp.Position(len(lines), 0)),
-        selection_range=lsp.Range(start=lsp.Position(0, 0), end=lsp.Position(0, 0)),
-        children=[],
-    )
-
-    scope_stack: list[Scope] = [Scope("", root_symbol, 0)]
-
-    for i, line in enumerate(lines):
-        # If inside an event, update its brace count for this line
-        if "pending_event" in locals() and pending_event is not None:
-            pe_open = line.count("{")
-            pe_close = line.count("}")
-            pending_event["brace_count"] = pending_event.get("brace_count", 1) + pe_open - pe_close
-            # If this line closed the outer event block, finalize the event
-            if pending_event["brace_count"] <= 0:
-                # Try inline name on the same line
-                close_inline = event_close_inline_re.match(line)
-                if close_inline:
-                    event_name = close_inline.group(1)
-                    name_line_index = i
-                else:
-                    # Look ahead to next non-empty line for the name
-                    j = i + 1
-                    while j < len(lines) and lines[j].strip() == "":
-                        j += 1
-                    event_name = None
-                    name_line_index = i
-                    if j < len(lines):
-                        name_line = lines[j]
-                        name_match = event_name_line_re.match(name_line)
-                        if name_match:
-                            event_name = name_match.group(1)
-                            name_line_index = j
-                if event_name:
-                    start_line = pending_event["start"]
-                    edit_type = pending_event["edit_type"]
-                    children = pending_event.get("children", [])
-                    detail = f"Event ({edit_type})"
-                    event_symbol = lsp.DocumentSymbol(
-                        name=event_name,
-                        detail=detail,
-                        kind=lsp.SymbolKind.Event,
-                        range=lsp.Range(start=lsp.Position(start_line, 0), end=lsp.Position(name_line_index, len(lines[name_line_index]))),
-                        selection_range=lsp.Range(start=lsp.Position(name_line_index, 0), end=lsp.Position(name_line_index, len(lines[name_line_index]))),
-                        children=children or [],
-                    )
-                    if scope_stack[-1].symbol.children is None:
-                        scope_stack[-1].symbol.children = []
-                    scope_stack[-1].symbol.children.append(event_symbol)
-                # Clear event tracking and continue
-                pending_event = None
-                continue
-        ns_match = ns_re.match(line)
-        proc_match = proc_re.match(line)
-        set_match = set_re.match(line)
-
-        # Namespace
-        if ns_match:
-            ns_name = ns_match.group(1)
-            start = lsp.Position(i, 0)
-            end = lsp.Position(i, len(line))
-            sel_start_char = line.find(ns_name)
-            sel_end_char = sel_start_char + len(ns_name) if sel_start_char >= 0 else len(line)
-            ns_symbol = lsp.DocumentSymbol(
-                name=ns_name,
-                detail="Namespace",
-                kind=lsp.SymbolKind.Namespace,
-                range=lsp.Range(start=start, end=end),
-                selection_range=lsp.Range(
-                    start=lsp.Position(i, max(sel_start_char, 0)),
-                    end=lsp.Position(i, max(sel_end_char, 0)),
-                ),
-                children=[],
-            )
-            scope = Scope(ns_name, ns_symbol, i)
-            if scope_stack[-1].symbol.children is None:
-                scope_stack[-1].symbol.children = []
-            scope_stack[-1].symbol.children.append(ns_symbol)
-            scope_stack.append(scope)
-
-        # Proc
-        elif proc_match:
-            proc_name = proc_match.group(1)
-            start = lsp.Position(i, 0)
-            end = lsp.Position(i, len(line))
-            sel_start_char = line.find(proc_name)
-            sel_end_char = sel_start_char + len(proc_name) if sel_start_char >= 0 else len(line)
-            proc_symbol = lsp.DocumentSymbol(
-                name=proc_name,
-                detail="Procedure",
-                kind=lsp.SymbolKind.Function,
-                range=lsp.Range(start=start, end=end),
-                selection_range=lsp.Range(
-                    start=lsp.Position(i, max(sel_start_char, 0)),
-                    end=lsp.Position(i, max(sel_end_char, 0)),
-                ),
-                children=[],
-            )
-            scope = Scope(proc_name, proc_symbol, i)
-            if scope_stack[-1].symbol.children is None:
-                scope_stack[-1].symbol.children = []
-            scope_stack[-1].symbol.children.append(proc_symbol)
-            scope_stack.append(scope)
-
-        # set variable
-        elif set_match:
-            var_name = set_match.group(1)
-            start = lsp.Position(i, 0)
-            end = lsp.Position(i, len(line))
-            sel_start_char = line.find(var_name)
-            sel_end_char = sel_start_char + len(var_name) if sel_start_char >= 0 else len(line)
-            var_symbol = lsp.DocumentSymbol(
-                name=var_name,
-                detail="Variable",
-                kind=lsp.SymbolKind.Variable,
-                range=lsp.Range(start=start, end=end),
-                selection_range=lsp.Range(
-                    start=lsp.Position(i, max(sel_start_char, 0)),
-                    end=lsp.Position(i, max(sel_end_char, 0)),
-                ),
-                children=None,
-            )
-            # Attach to current scope or pending event as child
-            if "pending_event" in locals() and pending_event is not None:
-                pending_event["children"].append(var_symbol)
-            else:
-                if scope_stack[-1].symbol.children is None:
-                    scope_stack[-1].symbol.children = []
-                scope_stack[-1].symbol.children.append(var_symbol)
-
-        # Event start (buffer edit)
-        if event_start_re.match(line):
-            m = event_start_re.match(line)
-            if m:
-                edit_type = m.group(1)
-                pending_event = {"start": i, "edit_type": edit_type, "children": []}
-            continue
-        # Brace balancing for scopes (namespace/proc)
-        open_count = line.count("{")
-        close_count = line.count("}")
-        scope_stack[-1].brace_count += open_count - close_count
-
-        # Close finished scopes
-        while len(scope_stack) > 1 and scope_stack[-1].brace_count <= 0:
-            finished = scope_stack.pop()
-            # Set the full range from startLine to current line
-            finished.symbol.range = lsp.Range(
-                start=lsp.Position(finished.start_line, 0),
-                end=lsp.Position(i, len(line)),
-            )
-
-    # Return top-level children
-    return root_symbol.children
+    return build_document_symbols(doc.source)
 
 
 @LSP_SERVER.feature(lsp.TEXT_DOCUMENT_INLAY_HINT)
@@ -332,13 +153,14 @@ def inlay_hints(params: lsp.InlayHintParams):
     document = LSP_SERVER.workspace.get_text_document(params.text_document.uri)
     tree = LSP_SERVER.parser.parse(document.source)
 
-    # collect Inlay Hints
-    hints = []
-    for key, value in LSP_SERVER.proc_signatures.items():
-        generator = InlayHintGenerator(LSP_SERVER.proc_signatures[key])
-        tree.accept(generator, recurse=True)
-        hints += generator.hints
-    return hints
+    # Merge proc signatures across files and traverse once
+    merged_signatures = {}
+    for sigs in LSP_SERVER.proc_signatures.values():
+        merged_signatures.update(sigs)
+
+    generator = InlayHintGenerator(merged_signatures)
+    tree.accept(generator, recurse=True)
+    return generator.hints
 
 
 @LSP_SERVER.feature(
@@ -364,7 +186,7 @@ def semantic_tokens(params: lsp.SemanticTokensParams):
             [
                 token.line,
                 token.offset,
-                token.lenght,
+                token.length,
                 TOKEN_TYPES.index(token.tok_type),
                 reduce(operator.or_, token.tok_modifiers, 0),
             ]
@@ -492,7 +314,7 @@ def goto_definition(params: lsp.DefinitionParams):
 
     # 2) Search in indexed files from proc_signatures
     # Build list of candidate files that declare this token as a proc
-    candidate_files: List[str] = []
+    candidate_files: list[str] = []
     for file_path, procs in LSP_SERVER.proc_signatures.items():
         if token in procs:
             candidate_files.append(file_path)
@@ -553,7 +375,7 @@ def formatting(params: lsp.DocumentFormattingParams) -> list[lsp.TextEdit] | Non
 # Required Language Server Initialization and Exit handlers.
 # **********************************************************
 @LSP_SERVER.feature(lsp.WORKSPACE_DID_CHANGE_CONFIGURATION)
-def did_change_configuration(params: lsp.DidChangeConfigurationParams):
+def did_change_configuration(_: lsp.DidChangeConfigurationParams):
     """LSP Handler for Config Changes"""
 
 
@@ -573,7 +395,7 @@ def initialize(params: lsp.InitializeParams) -> lsp.InitializeResult:
     log_to_output(f"Global settings:\r\n{json.dumps(GLOBAL_SETTINGS, indent=4, ensure_ascii=False)}\r\n")
     semantic_tokens_legend = lsp.SemanticTokensLegend(
         token_types=TOKEN_TYPES,
-        token_modifiers=TokenModifier,
+        token_modifiers=[m.name for m in TokenModifier],
     )
     return lsp.InitializeResult(
         capabilities=lsp.ServerCapabilities(
diff --git a/server/src/tools/document_symbols.py b/server/src/tools/document_symbols.py
new file mode 100644
index 0000000..7f976ef
--- /dev/null
+++ b/server/src/tools/document_symbols.py
@@ -0,0 +1,189 @@
+from __future__ import annotations
+
+import re
+import lsprotocol.types as lsp
+
+# Precompiled regex patterns for performance
+NS_RE = re.compile(r"^\s*namespace\s+eval\s+([^\s\{]+)")
+PROC_RE = re.compile(r"^\s*proc\s+([^\s\{]+)\s+\{.*\}\s+\{")
+SET_RE = re.compile(r"^\s*set\s+([^\s\}]+)")
+EVENT_START_RE = re.compile(r"^\s*LIB_GE_command_buffer_edit_(prepend|append|insert|replace)\b")
+EVENT_CLOSE_INLINE_RE = re.compile(r"^\s*\}\s*(\S+)\s*.*$")
+EVENT_NAME_LINE_RE = re.compile(r"^\s*([A-Za-z_][A-Za-z0-9_]*)\b")
+
+
+def build_document_symbols(source: str) -> list[lsp.DocumentSymbol]:
+    """Parse a Tcl document source and return DocumentSymbols.
+
+    This mirrors the previous inline implementation in lsp_server, but is extracted
+    for readability and reuse.
+    """
+    lines = source.split("\n")
+
+    class Scope:
+        def __init__(self, name: str, symbol: lsp.DocumentSymbol, start_line: int):
+            self.name = name
+            self.symbol = symbol
+            self.start_line = start_line
+            self.brace_count = 0
+
+    root_symbol = lsp.DocumentSymbol(
+        name="root",
+        detail="",
+        kind=lsp.SymbolKind.Namespace,
+        range=lsp.Range(start=lsp.Position(0, 0), end=lsp.Position(len(lines), 0)),
+        selection_range=lsp.Range(start=lsp.Position(0, 0), end=lsp.Position(0, 0)),
+        children=[],
+    )
+
+    scope_stack: list[Scope] = [Scope("", root_symbol, 0)]
+    pending_event: dict | None = None
+
+    for i, line in enumerate(lines):
+        # If inside an event, update its brace count for this line
+        if pending_event is not None:
+            pe_open = line.count("{")
+            pe_close = line.count("}")
+            pending_event["brace_count"] = pending_event.get("brace_count", 1) + pe_open - pe_close
+            # If this line closed the outer event block, finalize the event
+            if pending_event["brace_count"] <= 0:
+                # Try inline name on the same line
+                close_inline = EVENT_CLOSE_INLINE_RE.match(line)
+                if close_inline:
+                    event_name = close_inline.group(1)
+                    name_line_index = i
+                else:
+                    # Look ahead to next non-empty line for the name
+                    j = i + 1
+                    while j < len(lines) and lines[j].strip() == "":
+                        j += 1
+                    event_name = None
+                    name_line_index = i
+                    if j < len(lines):
+                        name_line = lines[j]
+                        name_match = EVENT_NAME_LINE_RE.match(name_line)
+                        if name_match:
+                            event_name = name_match.group(1)
+                            name_line_index = j
+                if event_name:
+                    start_line = pending_event["start"]
+                    edit_type = pending_event["edit_type"]
+                    children = pending_event.get("children", [])
+                    detail = f"Event ({edit_type})"
+                    event_symbol = lsp.DocumentSymbol(
+                        name=event_name,
+                        detail=detail,
+                        kind=lsp.SymbolKind.Event,
+                        range=lsp.Range(start=lsp.Position(start_line, 0), end=lsp.Position(name_line_index, len(lines[name_line_index]))),
+                        selection_range=lsp.Range(start=lsp.Position(name_line_index, 0), end=lsp.Position(name_line_index, len(lines[name_line_index]))),
+                        children=children or [],
+                    )
+                    if scope_stack[-1].symbol.children is None:
+                        scope_stack[-1].symbol.children = []
+                    scope_stack[-1].symbol.children.append(event_symbol)
+                # Clear event tracking and continue
+                pending_event = None
+                continue
+
+        ns_match = NS_RE.match(line)
+        proc_match = PROC_RE.match(line)
+        set_match = SET_RE.match(line)
+
+        # Namespace
+        if ns_match:
+            ns_name = ns_match.group(1)
+            start = lsp.Position(i, 0)
+            end = lsp.Position(i, len(line))
+            sel_start_char = line.find(ns_name)
+            sel_end_char = sel_start_char + len(ns_name) if sel_start_char >= 0 else len(line)
+            ns_symbol = lsp.DocumentSymbol(
+                name=ns_name,
+                detail="Namespace",
+                kind=lsp.SymbolKind.Namespace,
+                range=lsp.Range(start=start, end=end),
+                selection_range=lsp.Range(
+                    start=lsp.Position(i, max(sel_start_char, 0)),
+                    end=lsp.Position(i, max(sel_end_char, 0)),
+                ),
+                children=[],
+            )
+            scope = Scope(ns_name, ns_symbol, i)
+            if scope_stack[-1].symbol.children is None:
+                scope_stack[-1].symbol.children = []
+            scope_stack[-1].symbol.children.append(ns_symbol)
+            scope_stack.append(scope)
+
+        # Proc
+        elif proc_match:
+            proc_name = proc_match.group(1)
+            start = lsp.Position(i, 0)
+            end = lsp.Position(i, len(line))
+            sel_start_char = line.find(proc_name)
+            sel_end_char = sel_start_char + len(proc_name) if sel_start_char >= 0 else len(line)
+            proc_symbol = lsp.DocumentSymbol(
+                name=proc_name,
+                detail="Procedure",
+                kind=lsp.SymbolKind.Function,
+                range=lsp.Range(start=start, end=end),
+                selection_range=lsp.Range(
+                    start=lsp.Position(i, max(sel_start_char, 0)),
+                    end=lsp.Position(i, max(sel_end_char, 0)),
+                ),
+                children=[],
+            )
+            scope = Scope(proc_name, proc_symbol, i)
+            if scope_stack[-1].symbol.children is None:
+                scope_stack[-1].symbol.children = []
+            scope_stack[-1].symbol.children.append(proc_symbol)
+            scope_stack.append(scope)
+
+        # set variable
+        elif set_match:
+            var_name = set_match.group(1)
+            start = lsp.Position(i, 0)
+            end = lsp.Position(i, len(line))
+            sel_start_char = line.find(var_name)
+            sel_end_char = sel_start_char + len(var_name) if sel_start_char >= 0 else len(line)
+            var_symbol = lsp.DocumentSymbol(
+                name=var_name,
+                detail="Variable",
+                kind=lsp.SymbolKind.Variable,
+                range=lsp.Range(start=start, end=end),
+                selection_range=lsp.Range(
+                    start=lsp.Position(i, max(sel_start_char, 0)),
+                    end=lsp.Position(i, max(sel_end_char, 0)),
+                ),
+                children=None,
+            )
+            # Attach to current scope or pending event as child
+            if pending_event is not None:
+                pending_event["children"].append(var_symbol)
+            else:
+                if scope_stack[-1].symbol.children is None:
+                    scope_stack[-1].symbol.children = []
+                scope_stack[-1].symbol.children.append(var_symbol)
+
+        # Event start (buffer edit)
+        m = EVENT_START_RE.match(line)
+        if m:
+            edit_type = m.group(1)
+            pending_event = {"start": i, "edit_type": edit_type, "children": []}
+            continue
+
+        # Brace balancing for scopes (namespace/proc)
+        open_count = line.count("{")
+        close_count = line.count("}")
+        scope_stack[-1].brace_count += open_count - close_count
+
+        # Close finished scopes
+        while len(scope_stack) > 1 and scope_stack[-1].brace_count <= 0:
+            finished = scope_stack.pop()
+            # Set the full range from startLine to current line
+            finished.symbol.range = lsp.Range(
+                start=lsp.Position(finished.start_line, 0),
+                end=lsp.Position(i, len(line)),
+            )
+
+    # Return top-level children
+    return root_symbol.children
+
diff --git a/server/src/tools/semantic_tokens.py b/server/src/tools/semantic_tokens.py
index 9c5eb4f..b35c155 100644
--- a/server/src/tools/semantic_tokens.py
+++ b/server/src/tools/semantic_tokens.py
@@ -26,6 +26,11 @@ class Token:
     tok_type: str = ""
     tok_modifiers: List[TokenModifier] = attrs.field(factory=list)
 
+    @property
+    def length(self) -> int:
+        """Compatibility alias for misspelled 'lenght' field."""
+        return self.lenght
+
 
 TOKEN_TYPES = [
     "keyword",