diff --git a/bin/sessionmgr/puppet_master/BUILD.gn b/bin/sessionmgr/puppet_master/BUILD.gn
index 4ed5e98..96beba8 100644
--- a/bin/sessionmgr/puppet_master/BUILD.gn
+++ b/bin/sessionmgr/puppet_master/BUILD.gn
@@ -15,7 +15,6 @@
     "command_runners:set_focus_state_command_runner_unittest",
     "command_runners:set_kind_of_proto_story_option_command_runner_unittest",
     "command_runners:set_link_value_command_runner_unittest",
-    "command_runners:update_mod_command_runner_unittest",
   ]
 }
 
@@ -128,6 +127,5 @@
     "//peridot/bin/sessionmgr/puppet_master/command_runners:set_focus_state_command_runner",
     "//peridot/bin/sessionmgr/puppet_master/command_runners:set_kind_of_proto_story_option_command_runner",
     "//peridot/bin/sessionmgr/puppet_master/command_runners:set_link_value_command_runner",
-    "//peridot/bin/sessionmgr/puppet_master/command_runners:update_mod_command_runner",
   ]
 }
diff --git a/bin/sessionmgr/puppet_master/command_runners/BUILD.gn b/bin/sessionmgr/puppet_master/command_runners/BUILD.gn
index 28431f0..98d33b4 100644
--- a/bin/sessionmgr/puppet_master/command_runners/BUILD.gn
+++ b/bin/sessionmgr/puppet_master/command_runners/BUILD.gn
@@ -49,40 +49,6 @@
   ]
 }
 
-source_set("update_mod_command_runner") {
-  sources = [
-    "update_mod_command_runner.cc",
-    "update_mod_command_runner.h",
-  ]
-
-  deps = [
-    "//garnet/public/lib/fsl",
-    "//peridot/bin/sessionmgr/puppet_master/command_runners/operation_calls:update_mod_call",
-  ]
-
-  public_deps = [
-    ":command_runner",
-    "//peridot/public/lib/async/cpp:operation",
-  ]
-}
-
-executable("update_mod_command_runner_unittest") {
-  testonly = true
-
-  sources = [
-    "update_mod_command_runner_unittest.cc",
-  ]
-
-  deps = [
-    ":update_mod_command_runner",
-    "//garnet/public/lib/gtest",
-    "//peridot/lib/testing:test_with_session_storage",
-    "//peridot/public/lib/async/cpp:future",
-    "//peridot/public/lib/entity/cpp:json",
-    "//third_party/googletest:gtest_main",
-  ]
-}
-
 source_set("add_mod_command_runner") {
   sources = [
     "add_mod_command_runner.cc",
diff --git a/bin/sessionmgr/puppet_master/command_runners/operation_calls/BUILD.gn b/bin/sessionmgr/puppet_master/command_runners/operation_calls/BUILD.gn
index 33b19ac..5023e37 100644
--- a/bin/sessionmgr/puppet_master/command_runners/operation_calls/BUILD.gn
+++ b/bin/sessionmgr/puppet_master/command_runners/operation_calls/BUILD.gn
@@ -23,7 +23,6 @@
     ":get_link_path_for_parameter_name_call",
     ":get_types_from_entity_call",
     ":initialize_chain_call",
-    ":update_mod_call",
     "//garnet/public/lib/fidl/cpp",
     "//garnet/public/lib/fsl",
     "//garnet/public/lib/fxl",
@@ -112,18 +111,3 @@
   ]
 }
 
-source_set("update_mod_call") {
-  sources = [
-    "update_mod_call.cc",
-    "update_mod_call.h",
-  ]
-
-  deps = [
-    ":set_link_value_call",
-    "//peridot/bin/sessionmgr/storage:story_storage",
-    "//peridot/public/fidl/fuchsia.modular",
-    "//peridot/public/lib/async/cpp:future",
-    "//peridot/public/lib/async/cpp:operation",
-    "//peridot/public/lib/entity/cpp:json",
-  ]
-}
diff --git a/bin/sessionmgr/puppet_master/command_runners/operation_calls/add_mod_call.cc b/bin/sessionmgr/puppet_master/command_runners/operation_calls/add_mod_call.cc
index e4cb5ed..b783f33 100644
--- a/bin/sessionmgr/puppet_master/command_runners/operation_calls/add_mod_call.cc
+++ b/bin/sessionmgr/puppet_master/command_runners/operation_calls/add_mod_call.cc
@@ -13,7 +13,6 @@
 #include "peridot/bin/sessionmgr/puppet_master/command_runners/operation_calls/get_link_path_for_parameter_name_call.h"
 #include "peridot/bin/sessionmgr/puppet_master/command_runners/operation_calls/get_types_from_entity_call.h"
 #include "peridot/bin/sessionmgr/puppet_master/command_runners/operation_calls/initialize_chain_call.h"
-#include "peridot/bin/sessionmgr/puppet_master/command_runners/operation_calls/update_mod_call.h"
 #include "peridot/lib/fidl/clone.h"
 #include "peridot/lib/module_manifest/module_facet_reader.h"
 
diff --git a/bin/sessionmgr/puppet_master/command_runners/operation_calls/update_mod_call.cc b/bin/sessionmgr/puppet_master/command_runners/operation_calls/update_mod_call.cc
deleted file mode 100644
index c7d6bf5..0000000
--- a/bin/sessionmgr/puppet_master/command_runners/operation_calls/update_mod_call.cc
+++ /dev/null
@@ -1,128 +0,0 @@
-// Copyright 2018 The Fuchsia Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-#include "peridot/bin/sessionmgr/puppet_master/command_runners/operation_calls/update_mod_call.h"
-
-#include <fuchsia/modular/internal/cpp/fidl.h>
-#include <lib/async/cpp/future.h>
-#include <lib/entity/cpp/json.h>
-#include <lib/fsl/vmo/strings.h>
-
-#include "peridot/bin/sessionmgr/puppet_master/command_runners/operation_calls/set_link_value_call.h"
-
-namespace modular {
-
-namespace {
-
-class UpdateModCall : public Operation<fuchsia::modular::ExecuteResult> {
- public:
-  UpdateModCall(StoryStorage* const story_storage,
-                fuchsia::modular::UpdateMod command, ResultCall done)
-      : Operation("UpdateModCommandRunner::UpdateModCall", std::move(done)),
-        story_storage_(story_storage),
-        command_(std::move(command)) {}
-
- private:
-  void Run() override {
-    FlowToken flow{this, &result_};
-    if (command_.mod_name.is_null() || command_.mod_name->empty()) {
-      result_.status = fuchsia::modular::ExecuteStatus::INVALID_COMMAND;
-      result_.error_message = "No module name";
-      return;
-    }
-    story_storage_->ReadModuleData(command_.mod_name)
-        ->Then([this, flow](fuchsia::modular::ModuleDataPtr module_data) {
-          if (!module_data) {
-            result_.status = fuchsia::modular::ExecuteStatus::INVALID_MOD;
-            result_.error_message = "No module data";
-            return;
-            // Operation finishes since |flow| goes out of scope.
-          }
-          Cont1(flow, std::move(module_data));
-        });
-  }
-
-  // Once we have the module data, use it to know what links to update and
-  // update them if their names match the given parameters.
-  void Cont1(FlowToken flow, fuchsia::modular::ModuleDataPtr module_data) {
-    std::vector<modular::FuturePtr<fuchsia::modular::ExecuteResult>>
-        did_update_links;
-    for (const auto& parameter : *command_.parameters) {
-      for (const auto& entry : *module_data->parameter_map.entries) {
-        if (parameter.name != entry.name) {
-          continue;
-        }
-        did_update_links.push_back(
-            UpdateLinkValue(entry.link_path, parameter.data));
-      }
-    }
-    Wait("UpdateModCommandRunner.UpdateMod.Wait", did_update_links)
-        ->Then([this, flow](
-                   std::vector<fuchsia::modular::ExecuteResult> result_values) {
-          for (auto& result : result_values) {
-            if (result.status != fuchsia::modular::ExecuteStatus::OK) {
-              result_ = std::move(result);
-              return;
-              // Operation finishes since |flow| goes out of scope.
-            }
-          }
-          result_.status = fuchsia::modular::ExecuteStatus::OK;
-        });
-  }
-
-  FuturePtr<fuchsia::modular::ExecuteResult> UpdateLinkValue(
-      const fuchsia::modular::LinkPath& path,
-      const fuchsia::modular::IntentParameterData& data) {
-    std::string new_value;
-    std::string json_string;
-    switch (data.Which()) {
-      case fuchsia::modular::IntentParameterData::Tag::kEntityReference:
-        new_value = EntityReferenceToJson(data.entity_reference());
-        break;
-      case fuchsia::modular::IntentParameterData::Tag::kJson:
-        FXL_CHECK(fsl::StringFromVmo(data.json(), &json_string));
-        new_value = json_string;
-        break;
-      case fuchsia::modular::IntentParameterData::Tag::kEntityType:
-      case fuchsia::modular::IntentParameterData::Tag::kLinkName:
-      case fuchsia::modular::IntentParameterData::Tag::kLinkPath:
-      case fuchsia::modular::IntentParameterData::Tag::Invalid:
-        fuchsia::modular::ExecuteResult result;
-        result.status = fuchsia::modular::ExecuteStatus::INVALID_COMMAND;
-        std::stringstream stream;
-        stream << "Unsupported IntentParameterData type:"
-               << (uint32_t)data.Which();
-        auto ret = Future<fuchsia::modular::ExecuteResult>::CreateCompleted(
-            "UpdateModCommandRunner.UpdateLinkValue.ret", std::move(result));
-        return ret;
-    }
-    auto fut = Future<fuchsia::modular::ExecuteResult>::Create(
-        "UpdateModCommandRunner.UpdateLinkValue.fut");
-    fuchsia::modular::LinkPath out_path;
-    path.Clone(&out_path);
-    AddSetLinkValueOperation(
-        &operations_, story_storage_, std::move(out_path),
-        [new_value](fidl::StringPtr* value) { *value = new_value; },
-        fut->Completer());
-    return fut;
-  }
-
-  StoryStorage* const story_storage_;
-  fuchsia::modular::UpdateMod command_;
-  fuchsia::modular::ExecuteResult result_;
-  OperationCollection operations_;
-
-  FXL_DISALLOW_COPY_AND_ASSIGN(UpdateModCall);
-};
-
-}  // namespace
-
-void AddUpdateModOperation(
-    OperationContainer* const operation_container,
-    StoryStorage* const story_storage, fuchsia::modular::UpdateMod command,
-    std::function<void(fuchsia::modular::ExecuteResult)> done) {
-  operation_container->Add(
-      new UpdateModCall(story_storage, std::move(command), std::move(done)));
-}
-
-}  // namespace modular
diff --git a/bin/sessionmgr/puppet_master/command_runners/operation_calls/update_mod_call.h b/bin/sessionmgr/puppet_master/command_runners/operation_calls/update_mod_call.h
deleted file mode 100644
index 817ff56..0000000
--- a/bin/sessionmgr/puppet_master/command_runners/operation_calls/update_mod_call.h
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright 2018 The Fuchsia Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef PERIDOT_BIN_SESSIONMGR_PUPPET_MASTER_COMMAND_RUNNERS_OPERATION_CALLS_UPDATE_MOD_CALL_H_
-#define PERIDOT_BIN_SESSIONMGR_PUPPET_MASTER_COMMAND_RUNNERS_OPERATION_CALLS_UPDATE_MOD_CALL_H_
-
-#include <fuchsia/modular/cpp/fidl.h>
-#include <lib/async/cpp/operation.h>
-
-#include "peridot/bin/sessionmgr/storage/story_storage.h"
-
-namespace modular {
-
-void AddUpdateModOperation(
-    OperationContainer* const operation_container,
-    StoryStorage* const story_storage, fuchsia::modular::UpdateMod command,
-    std::function<void(fuchsia::modular::ExecuteResult)> done);
-
-}  // namespace modular
-
-#endif  // PERIDOT_BIN_SESSIONMGR_PUPPET_MASTER_COMMAND_RUNNERS_OPERATION_CALLS_UPDATE_MOD_CALL_H_
diff --git a/bin/sessionmgr/puppet_master/command_runners/update_mod_command_runner.cc b/bin/sessionmgr/puppet_master/command_runners/update_mod_command_runner.cc
deleted file mode 100644
index 57aa418..0000000
--- a/bin/sessionmgr/puppet_master/command_runners/update_mod_command_runner.cc
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright 2018 The Fuchsia Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "peridot/bin/sessionmgr/puppet_master/command_runners/update_mod_command_runner.h"
-
-#include "peridot/bin/sessionmgr/puppet_master/command_runners/operation_calls/update_mod_call.h"
-
-namespace modular {
-
-UpdateModCommandRunner::UpdateModCommandRunner() = default;
-UpdateModCommandRunner::~UpdateModCommandRunner() = default;
-
-void UpdateModCommandRunner::Execute(
-    fidl::StringPtr story_id, StoryStorage* const story_storage,
-    fuchsia::modular::StoryCommand command,
-    std::function<void(fuchsia::modular::ExecuteResult)> done) {
-  FXL_CHECK(command.is_update_mod());
-
-  AddUpdateModOperation(&operation_queue_, story_storage,
-                        std::move(command.update_mod()), std::move(done));
-}
-
-}  // namespace modular
diff --git a/bin/sessionmgr/puppet_master/command_runners/update_mod_command_runner.h b/bin/sessionmgr/puppet_master/command_runners/update_mod_command_runner.h
deleted file mode 100644
index 3f751f4..0000000
--- a/bin/sessionmgr/puppet_master/command_runners/update_mod_command_runner.h
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright 2018 The Fuchsia Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef PERIDOT_BIN_SESSIONMGR_PUPPET_MASTER_COMMAND_RUNNERS_UPDATE_MOD_COMMAND_RUNNER_H_
-#define PERIDOT_BIN_SESSIONMGR_PUPPET_MASTER_COMMAND_RUNNERS_UPDATE_MOD_COMMAND_RUNNER_H_
-
-#include <fuchsia/modular/cpp/fidl.h>
-#include <lib/async/cpp/operation.h>
-#include <vector>
-
-#include "peridot/bin/sessionmgr/puppet_master/command_runners/command_runner.h"
-#include "peridot/bin/sessionmgr/storage/story_storage.h"
-
-namespace modular {
-
-class UpdateModCommandRunner : public CommandRunner {
- public:
-  UpdateModCommandRunner();
-  ~UpdateModCommandRunner() override;
-
-  void Execute(
-      fidl::StringPtr story_id, StoryStorage* story_storage,
-      fuchsia::modular::StoryCommand command,
-      std::function<void(fuchsia::modular::ExecuteResult)> done) override;
-
- private:
-  OperationQueue operation_queue_;
-};
-
-}  // namespace modular
-
-#endif  // PERIDOT_BIN_SESSIONMGR_PUPPET_MASTER_COMMAND_RUNNERS_UPDATE_MOD_COMMAND_RUNNER_H_
diff --git a/bin/sessionmgr/puppet_master/command_runners/update_mod_command_runner_unittest.cc b/bin/sessionmgr/puppet_master/command_runners/update_mod_command_runner_unittest.cc
deleted file mode 100644
index c009d7e..0000000
--- a/bin/sessionmgr/puppet_master/command_runners/update_mod_command_runner_unittest.cc
+++ /dev/null
@@ -1,192 +0,0 @@
-// Copyright 2018 The Fuchsia Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "peridot/bin/sessionmgr/puppet_master/command_runners/update_mod_command_runner.h"
-
-#include <lib/async/cpp/future.h>
-#include <lib/fsl/vmo/strings.h>
-
-#include "gtest/gtest.h"
-#include "peridot/lib/testing/test_with_session_storage.h"
-
-namespace modular {
-namespace {
-
-class UpdateModCommandRunnerTest : public testing::TestWithSessionStorage {
- public:
-  void SetUp() override {
-    testing::TestWithSessionStorage::SetUp();
-    session_storage_ = MakeSessionStorage("page");
-    runner_ = MakeRunner();
-    story_id_ = CreateStory(session_storage_.get());
-    story_storage_ = GetStoryStorage(session_storage_.get(), story_id_);
-  }
-
- protected:
-  std::unique_ptr<UpdateModCommandRunner> MakeRunner() {
-    return std::make_unique<UpdateModCommandRunner>();
-  }
-
-  fuchsia::modular::ModuleData InitModuleData(
-      fidl::VectorPtr<fidl::StringPtr> module_path) {
-    fuchsia::modular::ModuleParameterMap parameter_map;
-    fuchsia::modular::ModuleData module_data;
-    module_data.module_path = std::move(module_path);
-    module_data.intent = fuchsia::modular::Intent::New();
-    module_data.parameter_map = std::move(parameter_map);
-    return module_data;
-  }
-
-  void AddJsonParamAndCreateLink(fuchsia::modular::ModuleData* module_data,
-                                 const std::string& parameter_name,
-                                 const std::string& link_path,
-                                 const std::string& json_value) {
-    fuchsia::modular::IntentParameter parameter;
-    parameter.name = parameter_name;
-    fsl::SizedVmo vmo;
-    FXL_CHECK(fsl::VmoFromString(json_value, &vmo));
-    parameter.data.set_json(std::move(vmo).ToTransport());
-    fuchsia::modular::ModuleParameterMapEntry parameter_entry;
-    parameter_entry.name = parameter_name;
-    parameter_entry.link_path = MakeLinkPath(link_path);
-    module_data->parameter_map.entries.push_back(std::move(parameter_entry));
-    module_data->intent->parameters.push_back(std::move(parameter));
-    SetLinkValue(story_storage_.get(), link_path, json_value);
-  }
-
-  void AddEntityReferenceParamAndCreateLink(
-      fuchsia::modular::ModuleData* module_data,
-      const std::string& parameter_name, const std::string& link_path,
-      const std::string& reference) {
-    fuchsia::modular::IntentParameter parameter;
-    parameter.name = parameter_name;
-    parameter.data.set_entity_reference(reference);
-    fuchsia::modular::ModuleParameterMapEntry parameter_entry;
-    parameter_entry.name = parameter_name;
-    parameter_entry.link_path = MakeLinkPath(link_path);
-    module_data->parameter_map.entries.push_back(std::move(parameter_entry));
-    module_data->intent->parameters.push_back(std::move(parameter));
-
-    std::stringstream stream;
-    stream << "{\"@entityRef\":\"" << reference << "\"}";
-    SetLinkValue(story_storage_.get(), link_path, stream.str());
-  }
-
-  std::unique_ptr<SessionStorage> session_storage_;
-  std::unique_ptr<StoryStorage> story_storage_;
-  std::unique_ptr<UpdateModCommandRunner> runner_;
-  std::string story_id_;
-};
-
-// Verifies that an UpdateCommandMod updates the right links associated with the
-// parameters.
-TEST_F(UpdateModCommandRunnerTest, Execute) {
-  bool done{};
-
-  fidl::VectorPtr<fidl::StringPtr> path;
-  path.push_back("mod");
-
-  // Create a module with base parameters that will be updated.
-  auto module_data = InitModuleData(path.Clone());
-  AddEntityReferenceParamAndCreateLink(&module_data, "param1", "link1",
-                                       "reference");
-  AddJsonParamAndCreateLink(&module_data, "param2", "link2", "10");
-  WriteModuleData(story_storage_.get(), std::move(module_data));
-
-  // Update module parameters.
-  fuchsia::modular::IntentParameter parameter1;
-  parameter1.name = "param1";
-  parameter1.data.set_entity_reference("reference2");
-  fuchsia::modular::IntentParameter parameter2;
-  parameter2.name = "param2";
-  fsl::SizedVmo vmo;
-  FXL_CHECK(fsl::VmoFromString("20", &vmo));
-  parameter2.data.set_json(std::move(vmo).ToTransport());
-
-  fuchsia::modular::UpdateMod update_mod;
-  update_mod.mod_name = path.Clone();
-  update_mod.parameters.push_back(std::move(parameter1));
-  update_mod.parameters.push_back(std::move(parameter2));
-  fuchsia::modular::StoryCommand command;
-  command.set_update_mod(std::move(update_mod));
-
-  runner_->Execute(story_id_, story_storage_.get(), std::move(command),
-                   [&](fuchsia::modular::ExecuteResult result) {
-                     EXPECT_EQ(fuchsia::modular::ExecuteStatus::OK,
-                               result.status);
-                     done = true;
-                   });
-  RunLoopUntil([&] { return done; });
-
-  // Verify links were updated.
-  auto link1_value = GetLinkValue(story_storage_.get(), "link1");
-  EXPECT_EQ(link1_value, "{\"@entityRef\":\"reference2\"}");
-  auto link2_value = GetLinkValue(story_storage_.get(), "link2");
-  EXPECT_EQ(link2_value, "20");
-}
-
-// Sets a parameter of invalid type in the command.
-TEST_F(UpdateModCommandRunnerTest, ExecuteUnsupportedParameterType) {
-  bool done{};
-
-  fidl::VectorPtr<fidl::StringPtr> path;
-  path.push_back("mod");
-
-  // Create a module with base parameters that will be updated.
-  auto module_data = InitModuleData(path.Clone());
-  AddEntityReferenceParamAndCreateLink(&module_data, "param1", "link1",
-                                       "reference");
-  AddJsonParamAndCreateLink(&module_data, "param2", "link2", "10");
-  WriteModuleData(story_storage_.get(), std::move(module_data));
-
-  // Update module parameters.
-  fuchsia::modular::IntentParameter parameter1;
-  parameter1.name = "param1";
-  parameter1.data.set_link_name("name2");
-
-  fuchsia::modular::UpdateMod update_mod;
-  update_mod.mod_name = path.Clone();
-  update_mod.parameters.push_back(std::move(parameter1));
-  fuchsia::modular::StoryCommand command;
-  command.set_update_mod(std::move(update_mod));
-
-  runner_->Execute(story_id_, story_storage_.get(), std::move(command),
-                   [&](fuchsia::modular::ExecuteResult result) {
-                     EXPECT_EQ(fuchsia::modular::ExecuteStatus::INVALID_COMMAND,
-                               result.status);
-                     done = true;
-                   });
-  RunLoopUntil([&] { return done; });
-
-  // Verify nothing changed.
-  auto link1_value = GetLinkValue(story_storage_.get(), "link1");
-  EXPECT_EQ(link1_value, "{\"@entityRef\":\"reference\"}");
-  auto link2_value = GetLinkValue(story_storage_.get(), "link2");
-  EXPECT_EQ(link2_value, "10");
-}
-
-TEST_F(UpdateModCommandRunnerTest, ExecuteNoModuleData) {
-  bool done{};
-
-  fidl::VectorPtr<fidl::StringPtr> path;
-  path.push_back("mod");
-
-  fuchsia::modular::UpdateMod update_mod;
-  update_mod.mod_name = path.Clone();
-  fuchsia::modular::StoryCommand command;
-  command.set_update_mod(std::move(update_mod));
-
-  runner_->Execute(story_id_, story_storage_.get(), std::move(command),
-                   [&](fuchsia::modular::ExecuteResult result) {
-                     EXPECT_EQ(fuchsia::modular::ExecuteStatus::INVALID_MOD,
-                               result.status);
-                     EXPECT_EQ("No module data", result.error_message);
-                     done = true;
-                   });
-
-  RunLoopUntil([&] { return done; });
-}
-
-}  // namespace
-}  // namespace modular
diff --git a/bin/sessionmgr/puppet_master/dispatch_story_command_executor.cc b/bin/sessionmgr/puppet_master/dispatch_story_command_executor.cc
index f94d68d..f1d245f 100644
--- a/bin/sessionmgr/puppet_master/dispatch_story_command_executor.cc
+++ b/bin/sessionmgr/puppet_master/dispatch_story_command_executor.cc
@@ -152,8 +152,6 @@
            "StoryCommand::AddMod"},
           {fuchsia::modular::StoryCommand::Tag::kFocusMod,
            "StoryCommand::FocusMod"},
-          {fuchsia::modular::StoryCommand::Tag::kUpdateMod,
-           "StoryCommand::UpdateMod"},
           {fuchsia::modular::StoryCommand::Tag::kRemoveMod,
            "StoryCommand::RemoveMod"},
           {fuchsia::modular::StoryCommand::Tag::kSetLinkValue,
diff --git a/bin/sessionmgr/puppet_master/make_production_impl.cc b/bin/sessionmgr/puppet_master/make_production_impl.cc
index 0d71157..2350afe 100644
--- a/bin/sessionmgr/puppet_master/make_production_impl.cc
+++ b/bin/sessionmgr/puppet_master/make_production_impl.cc
@@ -12,7 +12,6 @@
 #include "peridot/bin/sessionmgr/puppet_master/command_runners/set_focus_state_command_runner.h"
 #include "peridot/bin/sessionmgr/puppet_master/command_runners/set_kind_of_proto_story_option_command_runner.h"
 #include "peridot/bin/sessionmgr/puppet_master/command_runners/set_link_value_command_runner.h"
-#include "peridot/bin/sessionmgr/puppet_master/command_runners/update_mod_command_runner.h"
 #include "peridot/bin/sessionmgr/puppet_master/dispatch_story_command_executor.h"
 
 namespace modular {
@@ -45,8 +44,6 @@
                               module_facet_reader));
   command_runners.emplace(fuchsia::modular::StoryCommand::Tag::kFocusMod,
                           new FocusModCommandRunner(std::move(module_focuser)));
-  command_runners.emplace(fuchsia::modular::StoryCommand::Tag::kUpdateMod,
-                          new UpdateModCommandRunner());
   command_runners.emplace(fuchsia::modular::StoryCommand::Tag::kRemoveMod,
                           new RemoveModCommandRunner());
   command_runners.emplace(fuchsia::modular::StoryCommand::Tag::kSetLinkValue,
diff --git a/bin/suggestion_engine/ranking_features/mod_pair_ranking_feature.cc b/bin/suggestion_engine/ranking_features/mod_pair_ranking_feature.cc
index 76b0788..c862e5a 100644
--- a/bin/suggestion_engine/ranking_features/mod_pair_ranking_feature.cc
+++ b/bin/suggestion_engine/ranking_features/mod_pair_ranking_feature.cc
@@ -61,7 +61,6 @@
       case fuchsia::modular::StoryCommand::Tag::kSetFocusState:
       case fuchsia::modular::StoryCommand::Tag::kFocusMod:
       case fuchsia::modular::StoryCommand::Tag::kSetLinkValue:
-      case fuchsia::modular::StoryCommand::Tag::kUpdateMod:
       case fuchsia::modular::StoryCommand::Tag::kRemoveMod:
       case fuchsia::modular::StoryCommand::Tag::Invalid:
         continue;
diff --git a/bin/suggestion_engine/suggestion_engine_impl_unittest.cc b/bin/suggestion_engine/suggestion_engine_impl_unittest.cc
index 05f330e..550d396 100644
--- a/bin/suggestion_engine/suggestion_engine_impl_unittest.cc
+++ b/bin/suggestion_engine/suggestion_engine_impl_unittest.cc
@@ -194,24 +194,6 @@
     proposal->on_selected.push_back(std::move(command));
   }
 
-  void AddUpdateModuleAction(fuchsia::modular::Proposal* proposal,
-                             const std::string& mod_name,
-                             const std::string& json_param_name,
-                             const std::string& json_param_value) {
-    fuchsia::modular::IntentParameter parameter;
-    parameter.name = json_param_name;
-    fsl::SizedVmo vmo;
-    FXL_CHECK(fsl::VmoFromString(json_param_value, &vmo));
-    parameter.data.set_json(std::move(vmo).ToTransport());
-    fuchsia::modular::UpdateMod update_mod;
-    update_mod.mod_name.push_back(mod_name);
-    update_mod.parameters.push_back(std::move(parameter));
-
-    fuchsia::modular::StoryCommand command;
-    command.set_update_mod(std::move(update_mod));
-    proposal->on_selected.push_back(std::move(command));
-  }
-
   void AddSetLinkValueAction(fuchsia::modular::Proposal* proposal,
                              const std::string& mod_name,
                              const std::string& link_name,
@@ -510,7 +492,6 @@
   AddAddModuleAction(&proposal, "mod_name", "mod_url");
   AddFocusStoryAction(&proposal);
   AddFocusModuleAction(&proposal, "mod_name");
-  AddUpdateModuleAction(&proposal, "mod_name", "json_param", "1");
   AddSetLinkValueAction(&proposal, "mod_name", "foo_link_name", "foo_value");
   proposal_publisher_->Propose(std::move(proposal));
 
@@ -532,12 +513,11 @@
   auto story_id = test_executor_.last_story_id();
 
   auto& commands = test_executor_.last_commands();
-  ASSERT_EQ(5u, commands.size());
+  ASSERT_EQ(4u, commands.size());
   EXPECT_TRUE(commands.at(0).is_add_mod());
   EXPECT_TRUE(commands.at(1).is_set_focus_state());
   EXPECT_TRUE(commands.at(2).is_focus_mod());
-  EXPECT_TRUE(commands.at(3).is_update_mod());
-  EXPECT_TRUE(commands.at(4).is_set_link_value());
+  EXPECT_TRUE(commands.at(3).is_set_link_value());
 
   auto& add_mod = commands.at(0).add_mod();
   ASSERT_EQ(1u, add_mod.mod_name->size());
@@ -551,16 +531,7 @@
   ASSERT_EQ(1u, focus_mod.mod_name->size());
   EXPECT_EQ("mod_name", focus_mod.mod_name->at(0));
 
-  auto& update_mod = commands.at(3).update_mod();
-  ASSERT_EQ(1u, update_mod.mod_name->size());
-  EXPECT_EQ("mod_name", update_mod.mod_name->at(0));
-  EXPECT_EQ("json_param", update_mod.parameters->at(0).name);
-  std::string json_value;
-  FXL_CHECK(fsl::StringFromVmo(update_mod.parameters->at(0).data.json(),
-                               &json_value));
-  EXPECT_EQ("1", json_value);
-
-  auto& set_link_value = commands.at(4).set_link_value();
+  auto& set_link_value = commands.at(3).set_link_value();
   ASSERT_EQ(1u, set_link_value.path.module_path->size());
   EXPECT_EQ("mod_name", set_link_value.path.module_path->at(0));
   EXPECT_EQ("foo_link_name", set_link_value.path.link_name);
diff --git a/public/fidl/fuchsia.modular/story/story_command.fidl b/public/fidl/fuchsia.modular/story/story_command.fidl
index 448da41..c0ca8fb 100644
--- a/public/fidl/fuchsia.modular/story/story_command.fidl
+++ b/public/fidl/fuchsia.modular/story/story_command.fidl
@@ -21,9 +21,6 @@
     // Adds a Mod.
     AddMod add_mod;
 
-    // Updates mod link params.
-    UpdateMod update_mod;
-
     // Removes an existing Mod.
     RemoveMod remove_mod;
 
@@ -59,15 +56,6 @@
     vector<string>? surface_parent_mod_name;
 };
 
-// Updates a mod link values through its parameters.
-struct UpdateMod {
-    vector<string> mod_name;
-
-    // For every entry |p| in |parameters|, update the value of the link
-    // backing |p.name| to that specified in |p.data|.
-    vector<IntentParameter> parameters;
-};
-
 // Removes the mod under |mod_name| from the story.
 struct RemoveMod {
     vector<string> mod_name;