diff --git a/etc/evergreen_yml_components/tasks/misc_tasks.yml b/etc/evergreen_yml_components/tasks/misc_tasks.yml
index 87c79e2513c..7872a9add30 100644
--- a/etc/evergreen_yml_components/tasks/misc_tasks.yml
+++ b/etc/evergreen_yml_components/tasks/misc_tasks.yml
@@ -1110,6 +1110,16 @@ tasks:
             - "./src/evergreen/run_python_script_with_report.sh"
             - "validate-module-calls"
             - "modules_poc/merge_decls.py"
+      - command: subprocess.exec
+        type: test
+        params:
+          binary: bash
+          args:
+            - "./src/evergreen/run_python_script_with_report.sh"
+            - "ensure-browser-can-parse-output"
+            - "modules_poc/browse.py"
+            - "merged_decls.json"
+            - "--parse-only"
 
   - name: bazel_coverage
     tags: ["assigned_to_jira_team_devprod_correctness", "auxiliary"]
diff --git a/modules_poc/browse.py b/modules_poc/browse.py
index bbef7b9025b..b0beecc4277 100755
--- a/modules_poc/browse.py
+++ b/modules_poc/browse.py
@@ -49,7 +49,7 @@ class LocAndContext(NamedTuple):
 
     @classmethod
     def parse(cls, usage: str):
-        loc, ctx = usage.split("\t")
+        loc, _, ctx = usage.partition(" ")
         return cls(Loc.parse(loc), sys.intern(ctx))
 
 
@@ -224,11 +224,11 @@ def add_mod_loc_mapping_nodes(node: TreeNode, usages: Usages, kind: str, expand=
                 continue
 
             # Currently only STATIC_ASSERT doesn't have a name.
-            [kind, *name] = loc.ctx.split(" ", 1)
+            kind, _, name = loc.ctx.partition(" ")
             mod_node.add_leaf(
                 Text.assemble(
                     fancy_kind(kind),
-                    Text(" " + name[0], style="bold bright_white") if name else "",
+                    Text(" " + name, style="bold bright_white") if name else "",
                     f" {loc.loc}",
                 ),
                 loc.loc,
@@ -516,6 +516,9 @@ for d in raw_decls:
         for mod, locs in d["other_mods"].items():
             locs.sort()
             d["other_mods"][mod] = [Loc.parse(loc) for loc in locs]
+    # For now these aren't used in the browser
+    del d["vis_from"]
+    del d["vis_from_non_ns"]
 
 decls = sorted((Decl(**d) for d in raw_decls), key=lambda d: d.loc)
 del raw_decls
@@ -565,7 +568,7 @@ for f in files.values():
 files = {k: v for k, v in sorted(files.items(), key=lambda kv: kv[1].unknown_count, reverse=True)}
 modules = {d.mod for d in decls}
 
-if __name__ == "__main__":
+if __name__ == "__main__" and "--parse-only" not in sys.argv:
     app = ModularityApp()
     app.run()
 
diff --git a/modules_poc/mod_scanner.py b/modules_poc/mod_scanner.py
index 397d330c5bf..390ac090b0d 100755
--- a/modules_poc/mod_scanner.py
+++ b/modules_poc/mod_scanner.py
@@ -784,7 +784,7 @@ def find_usages(mod: str, c: Cursor, context: DecoratedCursor | None):
     # if this fails, something is missing in context_kinds or namespace_scope_context_kinds
     assert context
 
-    usage = f"{pretty_location(c.location)}\t{context.string_for_context}"
+    usage = f"{pretty_location(c.location)} {context.string_for_context}"
     d.used_from.setdefault(mod, set()).add(usage)
 
 
diff --git a/modules_poc/util.jq b/modules_poc/util.jq
index 9a081b31c6a..87b3ae52361 100644
--- a/modules_poc/util.jq
+++ b/modules_poc/util.jq
@@ -11,7 +11,14 @@ def _group_by_vis_map(vis_from):
             group_by(.mod) |
             map({
                 mod: .[0].mod,
-                locs: [.[].locs[]] | map(split("\t") | .[1]) | unique,
+                locs: [
+                    .[].locs[] |
+                    split(" ") |
+                    if length == 3
+                        then "\(.[1]) \(.[2])" # CXX_METHOD Foo::bar
+                        else "\(.[1]) \(.[0])" # STATIC_ASSERT src/mongo/foo.cpp:123:45
+                    end
+                ] | unique,
             }),
     });