diff --git a/app/javascript/dashboard/api/captain/customTools.js b/app/javascript/dashboard/api/captain/customTools.js
new file mode 100644
index 000000000..d0818d941
--- /dev/null
+++ b/app/javascript/dashboard/api/captain/customTools.js
@@ -0,0 +1,36 @@
+/* global axios */
+import ApiClient from '../ApiClient';
+
+class CaptainCustomTools extends ApiClient {
+  constructor() {
+    super('captain/custom_tools', { accountScoped: true });
+  }
+
+  get({ page = 1, searchKey } = {}) {
+    return axios.get(this.url, {
+      params: { page, searchKey },
+    });
+  }
+
+  show(id) {
+    return axios.get(`${this.url}/${id}`);
+  }
+
+  create(data = {}) {
+    return axios.post(this.url, {
+      custom_tool: data,
+    });
+  }
+
+  update(id, data = {}) {
+    return axios.put(`${this.url}/${id}`, {
+      custom_tool: data,
+    });
+  }
+
+  delete(id) {
+    return axios.delete(`${this.url}/${id}`);
+  }
+}
+
+export default new CaptainCustomTools();
diff --git a/app/javascript/dashboard/components-next/captain/pageComponents/DeleteDialog.vue b/app/javascript/dashboard/components-next/captain/pageComponents/DeleteDialog.vue
index 31e18394f..8d67344e1 100644
--- a/app/javascript/dashboard/components-next/captain/pageComponents/DeleteDialog.vue
+++ b/app/javascript/dashboard/components-next/captain/pageComponents/DeleteDialog.vue
@@ -10,6 +10,10 @@ const props = defineProps({
     type: String,
     required: true,
   },
+  translationKey: {
+    type: String,
+    required: true,
+  },
   entity: {
     type: Object,
     required: true,
@@ -25,7 +29,9 @@ const emit = defineEmits(['deleteSuccess']);
 const { t } = useI18n();
 const store = useStore();
 const deleteDialogRef = ref(null);
-const i18nKey = computed(() => props.type.toUpperCase());
+const i18nKey = computed(() => {
+  return props.translationKey || props.type.toUpperCase();
+});
 
 const deleteEntity = async payload => {
   if (!payload) return;
diff --git a/app/javascript/dashboard/components-next/captain/pageComponents/customTool/AuthConfig.vue b/app/javascript/dashboard/components-next/captain/pageComponents/customTool/AuthConfig.vue
new file mode 100644
index 000000000..208a94dba
--- /dev/null
+++ b/app/javascript/dashboard/components-next/captain/pageComponents/customTool/AuthConfig.vue
@@ -0,0 +1,73 @@
+<script setup>
+import { defineModel, watch } from 'vue';
+import { useI18n } from 'vue-i18n';
+import Input from 'dashboard/components-next/input/Input.vue';
+
+const props = defineProps({
+  authType: {
+    type: String,
+    required: true,
+    validator: value => ['none', 'bearer', 'basic', 'api_key'].includes(value),
+  },
+});
+
+const { t } = useI18n();
+
+const authConfig = defineModel('authConfig', {
+  type: Object,
+  default: () => ({}),
+});
+
+watch(
+  () => props.authType,
+  () => {
+    authConfig.value = {};
+  }
+);
+</script>
+
+<template>
+  <div class="flex flex-col gap-2">
+    <Input
+      v-if="authType === 'bearer'"
+      v-model="authConfig.token"
+      :label="t('CAPTAIN.CUSTOM_TOOLS.FORM.AUTH_CONFIG.BEARER_TOKEN')"
+      :placeholder="
+        t('CAPTAIN.CUSTOM_TOOLS.FORM.AUTH_CONFIG.BEARER_TOKEN_PLACEHOLDER')
+      "
+    />
+    <template v-else-if="authType === 'basic'">
+      <Input
+        v-model="authConfig.username"
+        :label="t('CAPTAIN.CUSTOM_TOOLS.FORM.AUTH_CONFIG.USERNAME')"
+        :placeholder="
+          t('CAPTAIN.CUSTOM_TOOLS.FORM.AUTH_CONFIG.USERNAME_PLACEHOLDER')
+        "
+      />
+      <Input
+        v-model="authConfig.password"
+        type="password"
+        :label="t('CAPTAIN.CUSTOM_TOOLS.FORM.AUTH_CONFIG.PASSWORD')"
+        :placeholder="
+          t('CAPTAIN.CUSTOM_TOOLS.FORM.AUTH_CONFIG.PASSWORD_PLACEHOLDER')
+        "
+      />
+    </template>
+    <template v-else-if="authType === 'api_key'">
+      <Input
+        v-model="authConfig.name"
+        :label="t('CAPTAIN.CUSTOM_TOOLS.FORM.AUTH_CONFIG.API_KEY')"
+        :placeholder="
+          t('CAPTAIN.CUSTOM_TOOLS.FORM.AUTH_CONFIG.API_KEY_PLACEHOLDER')
+        "
+      />
+      <Input
+        v-model="authConfig.key"
+        :label="t('CAPTAIN.CUSTOM_TOOLS.FORM.AUTH_CONFIG.API_VALUE')"
+        :placeholder="
+          t('CAPTAIN.CUSTOM_TOOLS.FORM.AUTH_CONFIG.API_VALUE_PLACEHOLDER')
+        "
+      />
+    </template>
+  </div>
+</template>
diff --git a/app/javascript/dashboard/components-next/captain/pageComponents/customTool/CreateCustomToolDialog.vue b/app/javascript/dashboard/components-next/captain/pageComponents/customTool/CreateCustomToolDialog.vue
new file mode 100644
index 000000000..0745c6546
--- /dev/null
+++ b/app/javascript/dashboard/components-next/captain/pageComponents/customTool/CreateCustomToolDialog.vue
@@ -0,0 +1,87 @@
+<script setup>
+import { ref, computed } from 'vue';
+import { useStore } from 'dashboard/composables/store';
+import { useAlert } from 'dashboard/composables';
+import { useI18n } from 'vue-i18n';
+import { parseAPIErrorResponse } from 'dashboard/store/utils/api';
+
+import Dialog from 'dashboard/components-next/dialog/Dialog.vue';
+import CustomToolForm from './CustomToolForm.vue';
+
+const props = defineProps({
+  selectedTool: {
+    type: Object,
+    default: () => ({}),
+  },
+  type: {
+    type: String,
+    default: 'create',
+    validator: value => ['create', 'edit'].includes(value),
+  },
+});
+
+const emit = defineEmits(['close']);
+const { t } = useI18n();
+const store = useStore();
+
+const dialogRef = ref(null);
+
+const updateTool = toolDetails =>
+  store.dispatch('captainCustomTools/update', {
+    id: props.selectedTool.id,
+    ...toolDetails,
+  });
+
+const i18nKey = computed(
+  () => `CAPTAIN.CUSTOM_TOOLS.${props.type.toUpperCase()}`
+);
+
+const createTool = toolDetails =>
+  store.dispatch('captainCustomTools/create', toolDetails);
+
+const handleSubmit = async updatedTool => {
+  try {
+    if (props.type === 'edit') {
+      await updateTool(updatedTool);
+    } else {
+      await createTool(updatedTool);
+    }
+    useAlert(t(`${i18nKey.value}.SUCCESS_MESSAGE`));
+    dialogRef.value.close();
+  } catch (error) {
+    const errorMessage =
+      parseAPIErrorResponse(error) || t(`${i18nKey.value}.ERROR_MESSAGE`);
+    useAlert(errorMessage);
+  }
+};
+
+const handleClose = () => {
+  emit('close');
+};
+
+const handleCancel = () => {
+  dialogRef.value.close();
+};
+
+defineExpose({ dialogRef });
+</script>
+
+<template>
+  <Dialog
+    ref="dialogRef"
+    width="2xl"
+    :title="$t(`${i18nKey}.TITLE`)"
+    :description="$t('CAPTAIN.CUSTOM_TOOLS.FORM_DESCRIPTION')"
+    :show-cancel-button="false"
+    :show-confirm-button="false"
+    @close="handleClose"
+  >
+    <CustomToolForm
+      :mode="type"
+      :tool="selectedTool"
+      @submit="handleSubmit"
+      @cancel="handleCancel"
+    />
+    <template #footer />
+  </Dialog>
+</template>
diff --git a/app/javascript/dashboard/components-next/captain/pageComponents/customTool/CustomToolCard.vue b/app/javascript/dashboard/components-next/captain/pageComponents/customTool/CustomToolCard.vue
new file mode 100644
index 000000000..d1d1dd011
--- /dev/null
+++ b/app/javascript/dashboard/components-next/captain/pageComponents/customTool/CustomToolCard.vue
@@ -0,0 +1,125 @@
+<script setup>
+import { computed } from 'vue';
+import { useToggle } from '@vueuse/core';
+import { useI18n } from 'vue-i18n';
+import { dynamicTime } from 'shared/helpers/timeHelper';
+
+import CardLayout from 'dashboard/components-next/CardLayout.vue';
+import DropdownMenu from 'dashboard/components-next/dropdown-menu/DropdownMenu.vue';
+import Button from 'dashboard/components-next/button/Button.vue';
+import Policy from 'dashboard/components/policy.vue';
+
+const props = defineProps({
+  id: {
+    type: Number,
+    required: true,
+  },
+  title: {
+    type: String,
+    required: true,
+  },
+  description: {
+    type: String,
+    default: '',
+  },
+  authType: {
+    type: String,
+    default: 'none',
+  },
+  updatedAt: {
+    type: Number,
+    required: true,
+  },
+  createdAt: {
+    type: Number,
+    required: true,
+  },
+});
+
+const emit = defineEmits(['action']);
+
+const { t } = useI18n();
+
+const [showActionsDropdown, toggleDropdown] = useToggle();
+
+const menuItems = computed(() => [
+  {
+    label: t('CAPTAIN.CUSTOM_TOOLS.OPTIONS.EDIT_TOOL'),
+    value: 'edit',
+    action: 'edit',
+    icon: 'i-lucide-pencil-line',
+  },
+  {
+    label: t('CAPTAIN.CUSTOM_TOOLS.OPTIONS.DELETE_TOOL'),
+    value: 'delete',
+    action: 'delete',
+    icon: 'i-lucide-trash',
+  },
+]);
+
+const timestamp = computed(() =>
+  dynamicTime(props.updatedAt || props.createdAt)
+);
+
+const handleAction = ({ action, value }) => {
+  toggleDropdown(false);
+  emit('action', { action, value, id: props.id });
+};
+
+const authTypeLabel = computed(() => {
+  return t(
+    `CAPTAIN.CUSTOM_TOOLS.FORM.AUTH_TYPES.${props.authType.toUpperCase()}`
+  );
+});
+</script>
+
+<template>
+  <CardLayout class="relative">
+    <div class="flex relative justify-between w-full gap-1">
+      <span class="text-base text-n-slate-12 line-clamp-1 font-medium">
+        {{ title }}
+      </span>
+      <div class="flex items-center gap-2">
+        <Policy
+          v-on-clickaway="() => toggleDropdown(false)"
+          :permissions="['administrator']"
+          class="relative flex items-center group"
+        >
+          <Button
+            icon="i-lucide-ellipsis-vertical"
+            color="slate"
+            size="xs"
+            class="rounded-md group-hover:bg-n-alpha-2"
+            @click="toggleDropdown()"
+          />
+          <DropdownMenu
+            v-if="showActionsDropdown"
+            :menu-items="menuItems"
+            class="mt-1 ltr:right-0 rtl:right-0 top-full"
+            @action="handleAction($event)"
+          />
+        </Policy>
+      </div>
+    </div>
+    <div class="flex items-center justify-between w-full gap-4">
+      <div class="flex items-center gap-3 flex-1">
+        <span
+          v-if="description"
+          class="text-sm truncate text-n-slate-11 flex-1"
+        >
+          {{ description }}
+        </span>
+        <span
+          v-if="authType !== 'none'"
+          class="text-sm shrink-0 text-n-slate-11 inline-flex items-center gap-1"
+        >
+          <i class="i-lucide-lock text-base" />
+          {{ authTypeLabel }}
+        </span>
+      </div>
+      <span class="text-sm text-n-slate-11 line-clamp-1 shrink-0">
+        {{ timestamp }}
+      </span>
+    </div>
+  </CardLayout>
+</template>
diff --git a/app/javascript/dashboard/components-next/captain/pageComponents/customTool/CustomToolForm.vue b/app/javascript/dashboard/components-next/captain/pageComponents/customTool/CustomToolForm.vue
new file mode 100644
index 000000000..14ebc6a57
--- /dev/null
+++ b/app/javascript/dashboard/components-next/captain/pageComponents/customTool/CustomToolForm.vue
@@ -0,0 +1,271 @@
+<script setup>
+import { reactive, computed, useTemplateRef, watch } from 'vue';
+import { useI18n } from 'vue-i18n';
+import { useVuelidate } from '@vuelidate/core';
+import { required } from '@vuelidate/validators';
+import { useMapGetter } from 'dashboard/composables/store';
+
+import Input from 'dashboard/components-next/input/Input.vue';
+import TextArea from 'dashboard/components-next/textarea/TextArea.vue';
+import Button from 'dashboard/components-next/button/Button.vue';
+import ComboBox from 'dashboard/components-next/combobox/ComboBox.vue';
+import ParamRow from './ParamRow.vue';
+import AuthConfig from './AuthConfig.vue';
+
+const props = defineProps({
+  mode: {
+    type: String,
+    default: 'create',
+    validator: value => ['create', 'edit'].includes(value),
+  },
+  tool: {
+    type: Object,
+    default: () => ({}),
+  },
+});
+
+const emit = defineEmits(['submit', 'cancel']);
+
+const { t } = useI18n();
+
+const formState = {
+  uiFlags: useMapGetter('captainCustomTools/getUIFlags'),
+};
+
+const initialState = {
+  title: '',
+  description: '',
+  endpoint_url: '',
+  http_method: 'GET',
+  request_template: '',
+  response_template: '',
+  auth_type: 'none',
+  auth_config: {},
+  param_schema: [],
+};
+
+const state = reactive({ ...initialState });
+
+// Populate form when in edit mode
+watch(
+  () => props.tool,
+  newTool => {
+    if (props.mode === 'edit' && newTool && newTool.id) {
+      state.title = newTool.title || '';
+      state.description = newTool.description || '';
+      state.endpoint_url = newTool.endpoint_url || '';
+      state.http_method = newTool.http_method || 'GET';
+      state.request_template = newTool.request_template || '';
+      state.response_template = newTool.response_template || '';
+      state.auth_type = newTool.auth_type || 'none';
+      state.auth_config = newTool.auth_config || {};
+      state.param_schema = newTool.param_schema || [];
+    }
+  },
+  { immediate: true }
+);
+
+const DEFAULT_PARAM = {
+  name: '',
+  type: 'string',
+  description: '',
+  required: false,
+};
+
+const validationRules = {
+  title: { required },
+  endpoint_url: { required },
+  http_method: { required },
+  auth_type: { required },
+};
+
+const httpMethodOptions = computed(() => [
+  { value: 'GET', label: 'GET' },
+  { value: 'POST', label: 'POST' },
+]);
+
+const authTypeOptions = computed(() => [
+  { value: 'none', label: t('CAPTAIN.CUSTOM_TOOLS.FORM.AUTH_TYPES.NONE') },
+  { value: 'bearer', label: t('CAPTAIN.CUSTOM_TOOLS.FORM.AUTH_TYPES.BEARER') },
+  { value: 'basic', label: t('CAPTAIN.CUSTOM_TOOLS.FORM.AUTH_TYPES.BASIC') },
+  {
+    value: 'api_key',
+    label: t('CAPTAIN.CUSTOM_TOOLS.FORM.AUTH_TYPES.API_KEY'),
+  },
+]);
+
+const v$ = useVuelidate(validationRules, state);
+
+const isLoading = computed(() =>
+  props.mode === 'edit'
+    ? formState.uiFlags.value.updatingItem
+    : formState.uiFlags.value.creatingItem
+);
+
+const getErrorMessage = (field, errorKey) => {
+  return v$.value[field].$error
+    ? t(`CAPTAIN.CUSTOM_TOOLS.FORM.${errorKey}.ERROR`)
+    : '';
+};
+
+const formErrors = computed(() => ({
+  title: getErrorMessage('title', 'TITLE'),
+  endpoint_url: getErrorMessage('endpoint_url', 'ENDPOINT_URL'),
+}));
+
+const paramsRef = useTemplateRef('paramsRef');
+
+const isParamsValid = () => {
+  if (!paramsRef.value || paramsRef.value.length === 0) {
+    return true;
+  }
+  return paramsRef.value.every(param => param.validate());
+};
+
+const removeParam = index => {
+  state.param_schema.splice(index, 1);
+};
+
+const addParam = () => {
+  state.param_schema.push({ ...DEFAULT_PARAM });
+};
+
+const handleCancel = () => emit('cancel');
+
+const handleSubmit = async () => {
+  const isFormValid = await v$.value.$validate();
+  if (!isFormValid || !isParamsValid()) {
+    return;
+  }
+
+  emit('submit', state);
+};
+</script>
+
+<template>
+  <form
+    class="flex flex-col px-4 -mx-4 gap-4 max-h-[calc(100vh-200px)] overflow-y-scroll"
+    @submit.prevent="handleSubmit"
+  >
+    <Input
+      v-model="state.title"
+      :label="t('CAPTAIN.CUSTOM_TOOLS.FORM.TITLE.LABEL')"
+      :placeholder="t('CAPTAIN.CUSTOM_TOOLS.FORM.TITLE.PLACEHOLDER')"
+      :message="formErrors.title"
+      :message-type="formErrors.title ? 'error' : 'info'"
+    />
+
+    <TextArea
+      v-model="state.description"
+      :label="t('CAPTAIN.CUSTOM_TOOLS.FORM.DESCRIPTION.LABEL')"
+      :placeholder="t('CAPTAIN.CUSTOM_TOOLS.FORM.DESCRIPTION.PLACEHOLDER')"
+      :rows="2"
+    />
+
+    <div class="flex gap-2">
+      <div class="flex flex-col gap-1 w-28">
+        <label class="mb-0.5 text-sm font-medium text-n-slate-12">
+          {{ t('CAPTAIN.CUSTOM_TOOLS.FORM.HTTP_METHOD.LABEL') }}
+        </label>
+        <ComboBox
+          v-model="state.http_method"
+          :options="httpMethodOptions"
+          class="[&>div>button]:bg-n-alpha-black2 [&_li]:font-mono [&_button]:font-mono [&>div>button]:outline-offset-[-1px]"
+        />
+      </div>
+      <Input
+        v-model="state.endpoint_url"
+        :label="t('CAPTAIN.CUSTOM_TOOLS.FORM.ENDPOINT_URL.LABEL')"
+        :placeholder="t('CAPTAIN.CUSTOM_TOOLS.FORM.ENDPOINT_URL.PLACEHOLDER')"
+        :message="formErrors.endpoint_url"
+        :message-type="formErrors.endpoint_url ? 'error' : 'info'"
+        class="flex-1"
+      />
+    </div>
+
+    <div class="flex flex-col gap-1">
+      <label class="mb-0.5 text-sm font-medium text-n-slate-12">
+        {{ t('CAPTAIN.CUSTOM_TOOLS.FORM.AUTH_TYPE.LABEL') }}
+      </label>
+      <ComboBox
+        v-model="state.auth_type"
+        :options="authTypeOptions"
+        class="[&>div>button]:bg-n-alpha-black2"
+      />
+    </div>
+
+    <AuthConfig
+      v-model:auth-config="state.auth_config"
+      :auth-type="state.auth_type"
+    />
+
+    <div class="flex flex-col gap-2">
+      <label class="text-sm font-medium text-n-slate-12">
+        {{ t('CAPTAIN.CUSTOM_TOOLS.FORM.PARAMETERS.LABEL') }}
+      </label>
+      <p class="text-xs text-n-slate-11 -mt-1">
+        {{ t('CAPTAIN.CUSTOM_TOOLS.FORM.PARAMETERS.HELP_TEXT') }}
+      </p>
+      <ul v-if="state.param_schema.length > 0" class="grid gap-2 list-none">
+        <ParamRow
+          v-for="(param, index) in state.param_schema"
+          :key="index"
+          ref="paramsRef"
+          v-model:name="param.name"
+          v-model:type="param.type"
+          v-model:description="param.description"
+          v-model:required="param.required"
+          @remove="removeParam(index)"
+        />
+      </ul>
+      <Button
+        type="button"
+        sm
+        ghost
+        blue
+        icon="i-lucide-plus"
+        :label="t('CAPTAIN.CUSTOM_TOOLS.FORM.ADD_PARAMETER')"
+        @click="addParam"
+      />
+    </div>
+
+    <TextArea
+      v-if="state.http_method === 'POST'"
+      v-model="state.request_template"
+      :label="t('CAPTAIN.CUSTOM_TOOLS.FORM.REQUEST_TEMPLATE.LABEL')"
+      :placeholder="t('CAPTAIN.CUSTOM_TOOLS.FORM.REQUEST_TEMPLATE.PLACEHOLDER')"
+      :rows="4"
+      class="[&_textarea]:font-mono"
+    />
+
+    <TextArea
+      v-model="state.response_template"
+      :label="t('CAPTAIN.CUSTOM_TOOLS.FORM.RESPONSE_TEMPLATE.LABEL')"
+      :placeholder="
+        t('CAPTAIN.CUSTOM_TOOLS.FORM.RESPONSE_TEMPLATE.PLACEHOLDER')
+      "
+      :rows="4"
+      class="[&_textarea]:font-mono"
+    />
+
+    <div class="flex gap-3 justify-between items-center w-full">
+      <Button
+        type="button"
+        variant="faded"
+        color="slate"
+        :label="t('CAPTAIN.FORM.CANCEL')"
+        class="w-full bg-n-alpha-2 text-n-blue-text hover:bg-n-alpha-3"
+        @click="handleCancel"
+      />
+      <Button
+        type="submit"
+        :label="
+          t(mode === 'edit' ? 'CAPTAIN.FORM.EDIT' : 'CAPTAIN.FORM.CREATE')
+        "
+        class="w-full"
+        :is-loading="isLoading"
+        :disabled="isLoading"
+      />
+    </div>
+  </form>
+</template>
diff --git a/app/javascript/dashboard/components-next/captain/pageComponents/customTool/ParamRow.vue b/app/javascript/dashboard/components-next/captain/pageComponents/customTool/ParamRow.vue
new file mode 100644
index 000000000..33cd64468
--- /dev/null
+++ b/app/javascript/dashboard/components-next/captain/pageComponents/customTool/ParamRow.vue
@@ -0,0 +1,113 @@
+<script setup>
+import { computed, defineModel, ref, watch } from 'vue';
+import { useI18n } from 'vue-i18n';
+import Button from 'dashboard/components-next/button/Button.vue';
+import Input from 'dashboard/components-next/input/Input.vue';
+import ComboBox from 'dashboard/components-next/combobox/ComboBox.vue';
+import Checkbox from 'dashboard/components-next/checkbox/Checkbox.vue';
+
+const emit = defineEmits(['remove']);
+const { t } = useI18n();
+const showErrors = ref(false);
+
+const name = defineModel('name', {
+  type: String,
+  required: true,
+});
+
+const type = defineModel('type', {
+  type: String,
+  required: true,
+});
+
+const description = defineModel('description', {
+  type: String,
+  default: '',
+});
+
+const required = defineModel('required', {
+  type: Boolean,
+  default: false,
+});
+
+const paramTypeOptions = computed(() => [
+  { value: 'string', label: t('CAPTAIN.CUSTOM_TOOLS.FORM.PARAM_TYPES.STRING') },
+  { value: 'number', label: t('CAPTAIN.CUSTOM_TOOLS.FORM.PARAM_TYPES.NUMBER') },
+  {
+    value: 'boolean',
+    label: t('CAPTAIN.CUSTOM_TOOLS.FORM.PARAM_TYPES.BOOLEAN'),
+  },
+  { value: 'array', label: t('CAPTAIN.CUSTOM_TOOLS.FORM.PARAM_TYPES.ARRAY') },
+  { value: 'object', label: t('CAPTAIN.CUSTOM_TOOLS.FORM.PARAM_TYPES.OBJECT') },
+]);
+
+const validationError = computed(() => {
+  if (!name.value || name.value.trim() === '') {
+    return 'PARAM_NAME_REQUIRED';
+  }
+  return null;
+});
+
+watch([name, type, description, required], () => {
+  showErrors.value = false;
+});
+
+const validate = () => {
+  showErrors.value = true;
+  return !validationError.value;
+};
+
+defineExpose({ validate });
+</script>
+
+<template>
+  <li class="list-none">
+    <div
+      class="flex items-start gap-2 p-3 rounded-lg border border-n-weak bg-n-alpha-2"
+      :class="{
+        'animate-wiggle border-n-ruby-9': showErrors && validationError,
+      }"
+    >
+      <div class="flex flex-col flex-1 gap-3">
+        <div class="grid grid-cols-3 gap-2">
+          <Input
+            v-model="name"
+            :placeholder="t('CAPTAIN.CUSTOM_TOOLS.FORM.PARAM_NAME.PLACEHOLDER')"
+            class="col-span-2"
+          />
+          <ComboBox
+            v-model="type"
+            :options="paramTypeOptions"
+            :placeholder="t('CAPTAIN.CUSTOM_TOOLS.FORM.PARAM_TYPE.PLACEHOLDER')"
+            class="[&>div>button]:bg-n-alpha-black2"
+          />
+        </div>
+        <Input
+          v-model="description"
+          :placeholder="
+            t('CAPTAIN.CUSTOM_TOOLS.FORM.PARAM_DESCRIPTION.PLACEHOLDER')
+          "
+        />
+        <label class="flex items-center gap-2 cursor-pointer">
+          <Checkbox v-model="required" />
+          <span class="text-sm text-n-slate-11">
+            {{ t('CAPTAIN.CUSTOM_TOOLS.FORM.PARAM_REQUIRED.LABEL') }}
+          </span>
+        </label>
+      </div>
+      <Button
+        solid
+        slate
+        icon="i-lucide-trash"
+        class="flex-shrink-0"
+        @click.stop="emit('remove')"
+      />
+    </div>
+    <span
+      v-if="showErrors && validationError"
+      class="block mt-1 text-sm text-n-ruby-11"
+    >
+      {{ t(`CAPTAIN.CUSTOM_TOOLS.FORM.ERRORS.${validationError}`) }}
+    </span>
+  </li>
+</template>
diff --git a/app/javascript/dashboard/components-next/captain/pageComponents/emptyStates/CustomToolsPageEmptyState.vue b/app/javascript/dashboard/components-next/captain/pageComponents/emptyStates/CustomToolsPageEmptyState.vue
new file mode 100644
index 000000000..420f953da
--- /dev/null
+++ b/app/javascript/dashboard/components-next/captain/pageComponents/emptyStates/CustomToolsPageEmptyState.vue
@@ -0,0 +1,29 @@
+<script setup>
+import EmptyStateLayout from 'dashboard/components-next/EmptyStateLayout.vue';
+import Button from 'dashboard/components-next/button/Button.vue';
+
+const emit = defineEmits(['click']);
+
+const onClick = () => {
+  emit('click');
+};
+</script>
+
+<template>
+  <EmptyStateLayout
+    :title="$t('CAPTAIN.CUSTOM_TOOLS.EMPTY_STATE.TITLE')"
+    :subtitle="$t('CAPTAIN.CUSTOM_TOOLS.EMPTY_STATE.SUBTITLE')"
+    :action-perms="['administrator']"
+  >
+    <template #empty-state-item>
+      <div class="min-h-[600px]" />
+    </template>
+    <template #actions>
+      <Button
+        :label="$t('CAPTAIN.CUSTOM_TOOLS.ADD_NEW')"
+        icon="i-lucide-plus"
+        @click="onClick"
+      />
+    </template>
+  </EmptyStateLayout>
+</template>
diff --git a/app/javascript/dashboard/components-next/sidebar/Sidebar.vue b/app/javascript/dashboard/components-next/sidebar/Sidebar.vue
index 28733565f..25aaebe0e 100644
--- a/app/javascript/dashboard/components-next/sidebar/Sidebar.vue
+++ b/app/javascript/dashboard/components-next/sidebar/Sidebar.vue
@@ -238,6 +238,11 @@ const menuItems = computed(() => {
           label: t('SIDEBAR.CAPTAIN_RESPONSES'),
           to: accountScopedRoute('captain_responses_index'),
         },
+        {
+          name: 'Tools',
+          label: t('SIDEBAR.CAPTAIN_TOOLS'),
+          to: accountScopedRoute('captain_tools_index'),
+        },
       ],
     },
     {
diff --git a/app/javascript/dashboard/featureFlags.js b/app/javascript/dashboard/featureFlags.js
index 0fb2322d2..87227e74b 100644
--- a/app/javascript/dashboard/featureFlags.js
+++ b/app/javascript/dashboard/featureFlags.js
@@ -49,6 +49,5 @@ export const PREMIUM_FEATURES = [
   FEATURE_FLAGS.CUSTOM_ROLES,
   FEATURE_FLAGS.AUDIT_LOGS,
   FEATURE_FLAGS.HELP_CENTER,
-  FEATURE_FLAGS.CAPTAIN_V2,
   FEATURE_FLAGS.SAML,
 ];
diff --git a/app/javascript/dashboard/i18n/locale/en/integrations.json b/app/javascript/dashboard/i18n/locale/en/integrations.json
index 8a812dff3..c65d2d040 100644
--- a/app/javascript/dashboard/i18n/locale/en/integrations.json
+++ b/app/javascript/dashboard/i18n/locale/en/integrations.json
@@ -750,6 +750,115 @@
         }
       }
     },
+    "CUSTOM_TOOLS": {
+      "HEADER": "Tools",
+      "ADD_NEW": "Create a new tool",
+      "EMPTY_STATE": {
+        "TITLE": "No custom tools available",
+        "SUBTITLE": "Create custom tools to connect your assistant with external APIs and services, enabling it to fetch data and perform actions on your behalf.",
+        "FEATURE_SPOTLIGHT": {
+          "TITLE": "Custom Tools",
+          "NOTE": "Custom tools allow your assistant to interact with external APIs and services. Create tools to fetch data, perform actions, or integrate with your existing systems to enhance your assistant's capabilities."
+        }
+      },
+      "FORM_DESCRIPTION": "Configure your custom tool to connect with external APIs",
+      "OPTIONS": {
+        "EDIT_TOOL": "Edit tool",
+        "DELETE_TOOL": "Delete tool"
+      },
+      "CREATE": {
+        "TITLE": "Create Custom Tool",
+        "SUCCESS_MESSAGE": "Custom tool created successfully",
+        "ERROR_MESSAGE": "Failed to create custom tool"
+      },
+      "EDIT": {
+        "TITLE": "Edit Custom Tool",
+        "SUCCESS_MESSAGE": "Custom tool updated successfully",
+        "ERROR_MESSAGE": "Failed to update custom tool"
+      },
+      "DELETE": {
+        "TITLE": "Delete Custom Tool",
+        "DESCRIPTION": "Are you sure you want to delete this custom tool? This action cannot be undone.",
+        "CONFIRM": "Yes, delete",
+        "SUCCESS_MESSAGE": "Custom tool deleted successfully",
+        "ERROR_MESSAGE": "Failed to delete custom tool"
+      },
+      "FORM": {
+        "TITLE": {
+          "LABEL": "Tool Name",
+          "PLACEHOLDER": "Order Lookup",
+          "ERROR": "Tool name is required"
+        },
+        "DESCRIPTION": {
+          "LABEL": "Description",
+          "PLACEHOLDER": "Looks up order details by order ID"
+        },
+        "HTTP_METHOD": {
+          "LABEL": "Method"
+        },
+        "ENDPOINT_URL": {
+          "LABEL": "Endpoint URL",
+          "PLACEHOLDER": "https://api.example.com/orders/{'{{'} order_id {'}}'}",
+          "ERROR": "Valid URL is required"
+        },
+        "AUTH_TYPE": {
+          "LABEL": "Authentication Type"
+        },
+        "AUTH_TYPES": {
+          "NONE": "None",
+          "BEARER": "Bearer Token",
+          "BASIC": "Basic Auth",
+          "API_KEY": "API Key"
+        },
+        "AUTH_CONFIG": {
+          "BEARER_TOKEN": "Bearer Token",
+          "BEARER_TOKEN_PLACEHOLDER": "Enter your bearer token",
+          "USERNAME": "Username",
+          "USERNAME_PLACEHOLDER": "Enter username",
+          "PASSWORD": "Password",
+          "PASSWORD_PLACEHOLDER": "Enter password",
+          "API_KEY": "Header Name",
+          "API_KEY_PLACEHOLDER": "X-API-Key",
+          "API_VALUE": "Header Value",
+          "API_VALUE_PLACEHOLDER": "Enter API key value"
+        },
+        "PARAMETERS": {
+          "LABEL": "Parameters",
+          "HELP_TEXT": "Define the parameters that will be extracted from user queries"
+        },
+        "ADD_PARAMETER": "Add Parameter",
+        "PARAM_NAME": {
+          "PLACEHOLDER": "Parameter name (e.g., order_id)"
+        },
+        "PARAM_TYPE": {
+          "PLACEHOLDER": "Type"
+        },
+        "PARAM_TYPES": {
+          "STRING": "String",
+          "NUMBER": "Number",
+          "BOOLEAN": "Boolean",
+          "ARRAY": "Array",
+          "OBJECT": "Object"
+        },
+        "PARAM_DESCRIPTION": {
+          "PLACEHOLDER": "Description of the parameter"
+        },
+        "PARAM_REQUIRED": {
+          "LABEL": "Required"
+        },
+        "REQUEST_TEMPLATE": {
+          "LABEL": "Request Body Template (Optional)",
+          "PLACEHOLDER": "{'{'}\n  \"order_id\": \"{'{{'} order_id {'}}'}\"\n{'}'}"
+        },
+        "RESPONSE_TEMPLATE": {
+          "LABEL": "Response Template (Optional)",
+          "PLACEHOLDER": "Order {'{{'} order_id {'}}'} status: {'{{'} status {'}}'}"
+        },
+        "ERRORS": {
+          "PARAM_NAME_REQUIRED": "Parameter name is required"
+        }
+      }
+    },
     "RESPONSES": {
       "HEADER": "FAQs",
       "ADD_NEW": "Create new FAQ",
diff --git a/app/javascript/dashboard/i18n/locale/en/settings.json b/app/javascript/dashboard/i18n/locale/en/settings.json
index 9ddc3b805..812b0cd8b 100644
--- a/app/javascript/dashboard/i18n/locale/en/settings.json
+++ b/app/javascript/dashboard/i18n/locale/en/settings.json
@@ -304,6 +304,7 @@
     "CAPTAIN_ASSISTANTS": "Assistants",
     "CAPTAIN_DOCUMENTS": "Documents",
     "CAPTAIN_RESPONSES": "FAQs",
+    "CAPTAIN_TOOLS": "Tools",
     "HOME": "Home",
     "AGENTS": "Agents",
     "AGENT_BOTS": "Bots",
diff --git a/app/javascript/dashboard/routes/dashboard/captain/captain.routes.js b/app/javascript/dashboard/routes/dashboard/captain/captain.routes.js
index 52fda537b..9d5609ab7 100644
--- a/app/javascript/dashboard/routes/dashboard/captain/captain.routes.js
+++ b/app/javascript/dashboard/routes/dashboard/captain/captain.routes.js
@@ -10,6 +10,7 @@ import AssistantGuidelinesIndex from './assistants/guidelines/Index.vue';
 import AssistantScenariosIndex from './assistants/scenarios/Index.vue';
 import DocumentsIndex from './documents/Index.vue';
 import ResponsesIndex from './responses/Index.vue';
+import CustomToolsIndex from './tools/Index.vue';
 
 export const routes = [
   {
@@ -124,4 +125,17 @@ export const routes = [
       ],
     },
   },
+  {
+    path: frontendURL('accounts/:accountId/captain/tools'),
+    component: CustomToolsIndex,
+    name: 'captain_tools_index',
+    meta: {
+      permissions: ['administrator', 'agent'],
+      featureFlag: FEATURE_FLAGS.CAPTAIN_V2,
+      installationTypes: [
+        INSTALLATION_TYPES.CLOUD,
+        INSTALLATION_TYPES.ENTERPRISE,
+      ],
+    },
+  },
 ];
diff --git a/app/javascript/dashboard/routes/dashboard/captain/tools/Index.vue b/app/javascript/dashboard/routes/dashboard/captain/tools/Index.vue
new file mode 100644
index 000000000..880bdbbf3
--- /dev/null
+++ b/app/javascript/dashboard/routes/dashboard/captain/tools/Index.vue
@@ -0,0 +1,138 @@
+<script setup>
+import { computed, onMounted, ref, nextTick } from 'vue';
+import { useMapGetter, useStore } from 'dashboard/composables/store';
+import { FEATURE_FLAGS } from 'dashboard/featureFlags';
+
+import PageLayout from 'dashboard/components-next/captain/PageLayout.vue';
+import CaptainPaywall from 'dashboard/components-next/captain/pageComponents/Paywall.vue';
+import CustomToolsPageEmptyState from 'dashboard/components-next/captain/pageComponents/emptyStates/CustomToolsPageEmptyState.vue';
+import CreateCustomToolDialog from 'dashboard/components-next/captain/pageComponents/customTool/CreateCustomToolDialog.vue';
+import CustomToolCard from 'dashboard/components-next/captain/pageComponents/customTool/CustomToolCard.vue';
+import DeleteDialog from 'dashboard/components-next/captain/pageComponents/DeleteDialog.vue';
+
+const store = useStore();
+
+const uiFlags = useMapGetter('captainCustomTools/getUIFlags');
+const customTools = useMapGetter('captainCustomTools/getRecords');
+const isFetching = computed(() => uiFlags.value.fetchingList);
+const customToolsMeta = useMapGetter('captainCustomTools/getMeta');
+
+const createDialogRef = ref(null);
+const deleteDialogRef = ref(null);
+const selectedTool = ref(null);
+const dialogType = ref('');
+
+const fetchCustomTools = (page = 1) => {
+  store.dispatch('captainCustomTools/get', { page });
+};
+
+const onPageChange = page => fetchCustomTools(page);
+
+const openCreateDialog = () => {
+  dialogType.value = 'create';
+  selectedTool.value = null;
+  nextTick(() => createDialogRef.value.dialogRef.open());
+};
+
+const handleEdit = tool => {
+  dialogType.value = 'edit';
+  selectedTool.value = tool;
+  nextTick(() => createDialogRef.value.dialogRef.open());
+};
+
+const handleDelete = tool => {
+  selectedTool.value = tool;
+  nextTick(() => deleteDialogRef.value.dialogRef.open());
+};
+
+const handleAction = ({ action, id }) => {
+  const tool = customTools.value.find(t => t.id === id);
+  if (action === 'edit') {
+    handleEdit(tool);
+  } else if (action === 'delete') {
+    handleDelete(tool);
+  }
+};
+
+const handleDialogClose = () => {
+  dialogType.value = '';
+  selectedTool.value = null;
+};
+
+const onDeleteSuccess = () => {
+  selectedTool.value = null;
+  // Check if page will be empty after deletion
+  if (customTools.value.length === 1 && customToolsMeta.value.page > 1) {
+    // Go to previous page if current page will be empty
+    onPageChange(customToolsMeta.value.page - 1);
+  } else {
+    // Refresh current page
+    fetchCustomTools(customToolsMeta.value.page);
+  }
+};
+
+onMounted(() => {
+  fetchCustomTools();
+});
+</script>
+
+<template>
+  <PageLayout
+    :header-title="$t('CAPTAIN.CUSTOM_TOOLS.HEADER')"
+    :button-label="$t('CAPTAIN.CUSTOM_TOOLS.ADD_NEW')"
+    :button-policy="['administrator']"
+    :total-count="customToolsMeta.totalCount"
+    :current-page="customToolsMeta.page"
+    :show-pagination-footer="!isFetching && !!customTools.length"
+    :is-fetching="isFetching"
+    :is-empty="!customTools.length"
+    :feature-flag="FEATURE_FLAGS.CAPTAIN_V2"
+    @update:current-page="onPageChange"
+    @click="openCreateDialog"
+  >
+    <template #paywall>
+      <CaptainPaywall />
+    </template>
+
+    <template #emptyState>
+      <CustomToolsPageEmptyState @click="openCreateDialog" />
+    </template>
+
+    <template #body>
+      <div class="flex flex-col gap-4">
+        <CustomToolCard
+          v-for="tool in customTools"
+          :id="tool.id"
+          :key="tool.id"
+          :title="tool.title"
+          :description="tool.description"
+          :endpoint-url="tool.endpoint_url"
+          :http-method="tool.http_method"
+          :auth-type="tool.auth_type"
+          :param-schema="tool.param_schema"
+          :enabled="tool.enabled"
+          :created-at="tool.created_at"
+          :updated-at="tool.updated_at"
+          @action="handleAction"
+        />
+      </div>
+    </template>
+  </PageLayout>
+
+  <CreateCustomToolDialog
+    v-if="dialogType"
+    ref="createDialogRef"
+    :type="dialogType"
+    :selected-tool="selectedTool"
+    @close="handleDialogClose"
+  />
+
+  <DeleteDialog
+    v-if="selectedTool"
+    ref="deleteDialogRef"
+    :entity="selectedTool"
+    type="CustomTools"
+    translation-key="CUSTOM_TOOLS"
+    @delete-success="onDeleteSuccess"
+  />
+</template>
diff --git a/app/javascript/dashboard/store/captain/customTools.js b/app/javascript/dashboard/store/captain/customTools.js
new file mode 100644
index 000000000..3d3af03c0
--- /dev/null
+++ b/app/javascript/dashboard/store/captain/customTools.js
@@ -0,0 +1,35 @@
+import CaptainCustomTools from 'dashboard/api/captain/customTools';
+import { createStore } from './storeFactory';
+import { throwErrorMessage } from 'dashboard/store/utils/api';
+
+export default createStore({
+  name: 'CaptainCustomTool',
+  API: CaptainCustomTools,
+  actions: mutations => ({
+    update: async ({ commit }, { id, ...updateObj }) => {
+      commit(mutations.SET_UI_FLAG, { updatingItem: true });
+      try {
+        const response = await CaptainCustomTools.update(id, updateObj);
+        commit(mutations.EDIT, response.data);
+        commit(mutations.SET_UI_FLAG, { updatingItem: false });
+        return response.data;
+      } catch (error) {
+        commit(mutations.SET_UI_FLAG, { updatingItem: false });
+        return throwErrorMessage(error);
+      }
+    },
+
+    delete: async ({ commit }, id) => {
+      commit(mutations.SET_UI_FLAG, { deletingItem: true });
+      try {
+        await CaptainCustomTools.delete(id);
+        commit(mutations.DELETE, id);
+        commit(mutations.SET_UI_FLAG, { deletingItem: false });
+        return id;
+      } catch (error) {
+        commit(mutations.SET_UI_FLAG, { deletingItem: false });
+        return throwErrorMessage(error);
+      }
+    },
+  }),
+});
diff --git a/app/javascript/dashboard/store/captain/tools.js b/app/javascript/dashboard/store/captain/tools.js
index 9a9bcc330..9638e45c3 100644
--- a/app/javascript/dashboard/store/captain/tools.js
+++ b/app/javascript/dashboard/store/captain/tools.js
@@ -3,7 +3,7 @@ import CaptainToolsAPI from '../../api/captain/tools';
 import { throwErrorMessage } from 'dashboard/store/utils/api';
 
 const toolsStore = createStore({
-  name: 'captainTool',
+  name: 'Tools',
   API: CaptainToolsAPI,
   actions: mutations => ({
     getTools: async ({ commit }) => {
diff --git a/app/javascript/dashboard/store/index.js b/app/javascript/dashboard/store/index.js
index 16bcab3f9..d56958eb5 100755
--- a/app/javascript/dashboard/store/index.js
+++ b/app/javascript/dashboard/store/index.js
@@ -57,6 +57,7 @@ import copilotThreads from './captain/copilotThreads';
 import copilotMessages from './captain/copilotMessages';
 import captainScenarios from './captain/scenarios';
 import captainTools from './captain/tools';
+import captainCustomTools from './captain/customTools';
 
 const plugins = [];
 
@@ -119,6 +120,7 @@ export default createStore({
     copilotMessages,
     captainScenarios,
     captainTools,
+    captainCustomTools,
   },
   plugins,
 });
diff --git a/app/models/custom_filter.rb b/app/models/custom_filter.rb
index b3d58fd17..6d64c0447 100644
--- a/app/models/custom_filter.rb
+++ b/app/models/custom_filter.rb
@@ -17,7 +17,6 @@
 #  index_custom_filters_on_user_id     (user_id)
 #
 class CustomFilter < ApplicationRecord
-  MAX_FILTER_PER_USER = 50
   belongs_to :user
   belongs_to :account
 
@@ -25,7 +24,7 @@ class CustomFilter < ApplicationRecord
   validate :validate_number_of_filters
 
   def validate_number_of_filters
-    return true if account.custom_filters.where(user_id: user_id).size < MAX_FILTER_PER_USER
+    return true if account.custom_filters.where(user_id: user_id).size < Limits::MAX_CUSTOM_FILTERS_PER_USER
 
     errors.add :account_id, I18n.t('errors.custom_filters.number_of_records')
   end
diff --git a/config/initializers/ai_agents.rb b/config/initializers/ai_agents.rb
index 37bdd589f..099d637ae 100644
--- a/config/initializers/ai_agents.rb
+++ b/config/initializers/ai_agents.rb
@@ -15,6 +15,7 @@ Rails.application.config.after_initialize do
         config.openai_api_base = api_base
       end
       config.default_model = model
+      config.max_turns = 30
       config.debug = false
     end
   end
diff --git a/config/locales/en.yml b/config/locales/en.yml
index ca3a9e950..0c76f8beb 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -100,7 +100,7 @@ en:
       validations:
         name: should not start or end with symbols, and it should not have < > / \ @ characters.
     custom_filters:
-      number_of_records: Limit reached. The maximum number of allowed custom filters for a user per account is 50.
+      number_of_records: Limit reached. The maximum number of allowed custom filters for a user per account is 1000.
       invalid_attribute: Invalid attribute key - [%{key}]. The key should be one of [%{allowed_keys}] or a custom attribute defined in the account.
       invalid_operator: Invalid operator. The allowed operators for %{attribute_name} are [%{allowed_keys}].
       invalid_query_operator: Query operator must be either "AND" or "OR".
@@ -336,6 +336,8 @@ en:
       processing_pages: 'Processing pages %{start}-%{end} (iteration %{iteration})'
       chunk_generated: 'Chunk generated %{chunk_faqs} FAQs. Total so far: %{total_faqs}'
       page_processing_error: 'Error processing pages %{start}-%{end}: %{error}'
+    custom_tool:
+      slug_generation_failed: 'Unable to generate unique slug after 5 attempts'
   public_portal:
     search:
       search_placeholder: Search for article by title or body...
diff --git a/config/routes.rb b/config/routes.rb
index bf455949c..757d20620 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -67,6 +67,7 @@ Rails.application.routes.draw do
             resources :copilot_threads, only: [:index, :create] do
               resources :copilot_messages, only: [:index, :create]
             end
+            resources :custom_tools
             resources :documents, only: [:index, :show, :create, :destroy]
           end
           resource :saml_settings, only: [:show, :create, :update, :destroy]
diff --git a/db/migrate/20251003091242_create_captain_custom_tools.rb b/db/migrate/20251003091242_create_captain_custom_tools.rb
new file mode 100644
index 000000000..8f63d826e
--- /dev/null
+++ b/db/migrate/20251003091242_create_captain_custom_tools.rb
@@ -0,0 +1,22 @@
+class CreateCaptainCustomTools < ActiveRecord::Migration[7.1]
+  def change
+    create_table :captain_custom_tools do |t|
+      t.references :account, null: false, index: true
+      t.string :slug, null: false
+      t.string :title, null: false
+      t.text :description
+      t.string :http_method, null: false, default: 'GET'
+      t.text :endpoint_url, null: false
+      t.text :request_template
+      t.text :response_template
+      t.string :auth_type, default: 'none'
+      t.jsonb :auth_config, default: {}
+      t.jsonb :param_schema, default: []
+      t.boolean :enabled, default: true, null: false
+
+      t.timestamps
+    end
+
+    add_index :captain_custom_tools, [:account_id, :slug], unique: true
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index d5f0c244c..f31d05cc3 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.1].define(version: 2025_09_17_012759) do
+ActiveRecord::Schema[7.1].define(version: 2025_10_03_091242) do
   # These extensions should be enabled to support this database
   enable_extension "pg_stat_statements"
   enable_extension "pg_trgm"
@@ -323,6 +323,25 @@ ActiveRecord::Schema[7.1].define(version: 2025_09_17_012759) do
     t.index ["account_id"], name: "index_captain_assistants_on_account_id"
   end
 
+  create_table "captain_custom_tools", force: :cascade do |t|
+    t.bigint "account_id", null: false
+    t.string "slug", null: false
+    t.string "title", null: false
+    t.text "description"
+    t.string "http_method", default: "GET", null: false
+    t.text "endpoint_url", null: false
+    t.text "request_template"
+    t.text "response_template"
+    t.string "auth_type", default: "none"
+    t.jsonb "auth_config", default: {}
+    t.jsonb "param_schema", default: []
+    t.boolean "enabled", default: true, null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["account_id", "slug"], name: "index_captain_custom_tools_on_account_id_and_slug", unique: true
+    t.index ["account_id"], name: "index_captain_custom_tools_on_account_id"
+  end
+
   create_table "captain_documents", force: :cascade do |t|
     t.string "name"
     t.string "external_link", null: false
diff --git a/enterprise/app/controllers/api/v1/accounts/captain/assistants_controller.rb b/enterprise/app/controllers/api/v1/accounts/captain/assistants_controller.rb
index 21675bad0..ebeaaf67f 100644
--- a/enterprise/app/controllers/api/v1/accounts/captain/assistants_controller.rb
+++ b/enterprise/app/controllers/api/v1/accounts/captain/assistants_controller.rb
@@ -33,7 +33,8 @@ class Api::V1::Accounts::Captain::AssistantsController < Api::V1::Accounts::Base
   end
 
   def tools
-    @tools = Captain::Assistant.available_agent_tools
+    assistant = Captain::Assistant.new(account: Current.account)
+    @tools = assistant.available_agent_tools
   end
 
   private
diff --git a/enterprise/app/controllers/api/v1/accounts/captain/custom_tools_controller.rb b/enterprise/app/controllers/api/v1/accounts/captain/custom_tools_controller.rb
new file mode 100644
index 000000000..3137ded09
--- /dev/null
+++ b/enterprise/app/controllers/api/v1/accounts/captain/custom_tools_controller.rb
@@ -0,0 +1,49 @@
+class Api::V1::Accounts::Captain::CustomToolsController < Api::V1::Accounts::BaseController
+  before_action :current_account
+  before_action -> { check_authorization(Captain::CustomTool) }
+  before_action :set_custom_tool, only: [:show, :update, :destroy]
+
+  def index
+    @custom_tools = account_custom_tools.enabled
+  end
+
+  def show; end
+
+  def create
+    @custom_tool = account_custom_tools.create!(custom_tool_params)
+  end
+
+  def update
+    @custom_tool.update!(custom_tool_params)
+  end
+
+  def destroy
+    @custom_tool.destroy
+    head :no_content
+  end
+
+  private
+
+  def set_custom_tool
+    @custom_tool = account_custom_tools.find(params[:id])
+  end
+
+  def account_custom_tools
+    @account_custom_tools ||= Current.account.captain_custom_tools
+  end
+
+  def custom_tool_params
+    params.require(:custom_tool).permit(
+      :title,
+      :description,
+      :endpoint_url,
+      :http_method,
+      :request_template,
+      :response_template,
+      :auth_type,
+      :enabled,
+      auth_config: {},
+      param_schema: [:name, :type, :description, :required]
+    )
+  end
+end
diff --git a/enterprise/app/jobs/captain/conversation/response_builder_job.rb b/enterprise/app/jobs/captain/conversation/response_builder_job.rb
index 7ede1201d..15f2ace56 100644
--- a/enterprise/app/jobs/captain/conversation/response_builder_job.rb
+++ b/enterprise/app/jobs/captain/conversation/response_builder_job.rb
@@ -49,10 +49,15 @@ class Captain::Conversation::ResponseBuilderJob < ApplicationJob
       .where(message_type: [:incoming, :outgoing])
       .where(private: false)
       .map do |message|
-      {
+      message_hash = {
         content: prepare_multimodal_message_content(message),
         role: determine_role(message)
       }
+
+      # Include agent_name if present in additional_attributes
+      message_hash[:agent_name] = message.additional_attributes['agent_name'] if message.additional_attributes&.dig('agent_name').present?
+
+      message_hash
     end
   end
 
@@ -79,25 +84,31 @@ class Captain::Conversation::ResponseBuilderJob < ApplicationJob
   end
 
   def create_handoff_message
-    create_outgoing_message(@assistant.config['handoff_message'].presence || I18n.t('conversations.captain.handoff'))
+    create_outgoing_message(
+      @assistant.config['handoff_message'].presence || I18n.t('conversations.captain.handoff')
+    )
   end
 
   def create_messages
     validate_message_content!(@response['response'])
-    create_outgoing_message(@response['response'])
+    create_outgoing_message(@response['response'], agent_name: @response['agent_name'])
   end
 
   def validate_message_content!(content)
     raise ArgumentError, 'Message content cannot be blank' if content.blank?
   end
 
-  def create_outgoing_message(message_content)
+  def create_outgoing_message(message_content, agent_name: nil)
+    additional_attrs = {}
+    additional_attrs[:agent_name] = agent_name if agent_name.present?
+
     @conversation.messages.create!(
       message_type: :outgoing,
       account_id: account.id,
       inbox_id: inbox.id,
       sender: @assistant,
-      content: message_content
+      content: message_content,
+      additional_attributes: additional_attrs
     )
   end
 
diff --git a/enterprise/app/models/captain/assistant.rb b/enterprise/app/models/captain/assistant.rb
index 0423abf67..771360659 100644
--- a/enterprise/app/models/captain/assistant.rb
+++ b/enterprise/app/models/captain/assistant.rb
@@ -50,6 +50,19 @@ class Captain::Assistant < ApplicationRecord
     name
   end
 
+  def available_agent_tools
+    tools = self.class.built_in_agent_tools.dup
+
+    custom_tools = account.captain_custom_tools.enabled.map(&:to_tool_metadata)
+    tools.concat(custom_tools)
+
+    tools
+  end
+
+  def available_tool_ids
+    available_agent_tools.pluck(:id)
+  end
+
   def push_event_data
     {
       id: id,
@@ -92,6 +105,7 @@ class Captain::Assistant < ApplicationRecord
       product_name: config['product_name'] || 'this product',
       scenarios: scenarios.enabled.map do |scenario|
         {
+          title: scenario.title,
           key: scenario.title.parameterize.underscore,
           description: scenario.description
         }
diff --git a/enterprise/app/models/captain/custom_tool.rb b/enterprise/app/models/captain/custom_tool.rb
new file mode 100644
index 000000000..bf3f351dd
--- /dev/null
+++ b/enterprise/app/models/captain/custom_tool.rb
@@ -0,0 +1,100 @@
+# == Schema Information
+#
+# Table name: captain_custom_tools
+#
+#  id                :bigint           not null, primary key
+#  auth_config       :jsonb
+#  auth_type         :string           default("none")
+#  description       :text
+#  enabled           :boolean          default(TRUE), not null
+#  endpoint_url      :text             not null
+#  http_method       :string           default("GET"), not null
+#  param_schema      :jsonb
+#  request_template  :text
+#  response_template :text
+#  slug              :string           not null
+#  title             :string           not null
+#  created_at        :datetime         not null
+#  updated_at        :datetime         not null
+#  account_id        :bigint           not null
+#
+# Indexes
+#
+#  index_captain_custom_tools_on_account_id           (account_id)
+#  index_captain_custom_tools_on_account_id_and_slug  (account_id,slug) UNIQUE
+#
+class Captain::CustomTool < ApplicationRecord
+  include Concerns::Toolable
+  include Concerns::SafeEndpointValidatable
+
+  self.table_name = 'captain_custom_tools'
+
+  NAME_PREFIX = 'custom'.freeze
+  NAME_SEPARATOR = '_'.freeze
+  PARAM_SCHEMA_VALIDATION = {
+    'type': 'array',
+    'items': {
+      'type': 'object',
+      'properties': {
+        'name': { 'type': 'string' },
+        'type': { 'type': 'string' },
+        'description': { 'type': 'string' },
+        'required': { 'type': 'boolean' }
+      },
+      'required': %w[name type description],
+      'additionalProperties': false
+    }
+  }.to_json.freeze
+
+  belongs_to :account
+
+  enum :http_method, %w[GET POST].index_by(&:itself), validate: true
+  enum :auth_type, %w[none bearer basic api_key].index_by(&:itself), default: :none, validate: true, prefix: :auth
+
+  before_validation :generate_slug
+
+  validates :slug, presence: true, uniqueness: { scope: :account_id }
+  validates :title, presence: true
+  validates :endpoint_url, presence: true
+  validates_with JsonSchemaValidator,
+                 schema: PARAM_SCHEMA_VALIDATION,
+                 attribute_resolver: ->(record) { record.param_schema }
+
+  scope :enabled, -> { where(enabled: true) }
+
+  def to_tool_metadata
+    {
+      id: slug,
+      title: title,
+      description: description,
+      custom: true
+    }
+  end
+
+  private
+
+  def generate_slug
+    return if slug.present?
+    return if title.blank?
+
+    paramterized_title = title.parameterize(separator: NAME_SEPARATOR)
+
+    base_slug = "#{NAME_PREFIX}#{NAME_SEPARATOR}#{paramterized_title}"
+    self.slug = find_unique_slug(base_slug)
+  end
+
+  def find_unique_slug(base_slug)
+    return base_slug unless slug_exists?(base_slug)
+
+    5.times do
+      slug_candidate = "#{base_slug}#{NAME_SEPARATOR}#{SecureRandom.alphanumeric(6).downcase}"
+      return slug_candidate unless slug_exists?(slug_candidate)
+    end
+
+    raise ActiveRecord::RecordNotUnique, I18n.t('captain.custom_tool.slug_generation_failed')
+  end
+
+  def slug_exists?(candidate)
+    self.class.exists?(account_id: account_id, slug: candidate)
+  end
+end
diff --git a/enterprise/app/models/captain/scenario.rb b/enterprise/app/models/captain/scenario.rb
index aac7e2411..d876a7127 100644
--- a/enterprise/app/models/captain/scenario.rb
+++ b/enterprise/app/models/captain/scenario.rb
@@ -38,7 +38,7 @@ class Captain::Scenario < ApplicationRecord
 
   scope :enabled, -> { where(enabled: true) }
 
-  delegate :temperature, :feature_faq, :feature_memory, :product_name, to: :assistant
+  delegate :temperature, :feature_faq, :feature_memory, :product_name, :response_guidelines, :guardrails, to: :assistant
 
   before_save :resolve_tool_references
 
@@ -46,7 +46,10 @@ class Captain::Scenario < ApplicationRecord
     {
       title: title,
       instructions: resolved_instructions,
-      tools: resolved_tools
+      tools: resolved_tools,
+      assistant_name: assistant.name.downcase.gsub(/\s+/, '_'),
+      response_guidelines: response_guidelines || [],
+      guardrails: guardrails || []
     }
   end
 
@@ -57,24 +60,34 @@ class Captain::Scenario < ApplicationRecord
   end
 
   def agent_tools
-    resolved_tools.map { |tool| self.class.resolve_tool_class(tool[:id]) }.map { |tool| tool.new(assistant) }
+    resolved_tools.map { |tool| resolve_tool_instance(tool) }
   end
 
   def resolved_instructions
-    instruction.gsub(TOOL_REFERENCE_REGEX) do |match|
-      "#{match} tool "
-    end
+    instruction.gsub(TOOL_REFERENCE_REGEX, '`\1` tool')
   end
 
   def resolved_tools
     return [] if tools.blank?
 
-    available_tools = self.class.available_agent_tools
+    available_tools = assistant.available_agent_tools
     tools.filter_map do |tool_id|
       available_tools.find { |tool| tool[:id] == tool_id }
     end
   end
 
+  def resolve_tool_instance(tool_metadata)
+    tool_id = tool_metadata[:id]
+
+    if tool_metadata[:custom]
+      custom_tool = Captain::CustomTool.find_by(slug: tool_id, account_id: account_id, enabled: true)
+      custom_tool&.tool(assistant)
+    else
+      tool_class = self.class.resolve_tool_class(tool_id)
+      tool_class&.new(assistant)
+    end
+  end
+
   # Validates that all tool references in the instruction are valid.
   # Parses the instruction for tool references and checks if they exist
   # in the available tools configuration.
@@ -95,8 +108,8 @@ class Captain::Scenario < ApplicationRecord
     tool_ids = extract_tool_ids_from_text(instruction)
     return if tool_ids.empty?
 
-    available_tool_ids = self.class.available_tool_ids
-    invalid_tools = tool_ids - available_tool_ids
+    all_available_tool_ids = assistant.available_tool_ids
+    invalid_tools = tool_ids - all_available_tool_ids
 
     return unless invalid_tools.any?
 
diff --git a/enterprise/app/models/concerns/captain_tools_helpers.rb b/enterprise/app/models/concerns/captain_tools_helpers.rb
index 5a660310c..34133aac2 100644
--- a/enterprise/app/models/concerns/captain_tools_helpers.rb
+++ b/enterprise/app/models/concerns/captain_tools_helpers.rb
@@ -8,12 +8,12 @@ module Concerns::CaptainToolsHelpers
   TOOL_REFERENCE_REGEX = %r{\[[^\]]+\]\(tool://([^/)]+)\)}
 
   class_methods do
-    # Returns all available agent tools with their metadata.
+    # Returns all built-in agent tools with their metadata.
     # Only includes tools that have corresponding class files and can be resolved.
     #
     # @return [Array<Hash>] Array of tool hashes with :id, :title, :description, :icon
-    def available_agent_tools
-      @available_agent_tools ||= load_agent_tools
+    def built_in_agent_tools
+      @built_in_agent_tools ||= load_agent_tools
     end
 
     # Resolves a tool class from a tool ID.
@@ -26,12 +26,12 @@ module Concerns::CaptainToolsHelpers
       class_name.safe_constantize
     end
 
-    # Returns an array of all available tool IDs.
-    # Convenience method that extracts just the IDs from available_agent_tools.
+    # Returns an array of all built-in tool IDs.
+    # Convenience method that extracts just the IDs from built_in_agent_tools.
     #
-    # @return [Array<String>] Array of available tool IDs
-    def available_tool_ids
-      @available_tool_ids ||= available_agent_tools.map { |tool| tool[:id] }
+    # @return [Array<String>] Array of built-in tool IDs
+    def built_in_tool_ids
+      @built_in_tool_ids ||= built_in_agent_tools.map { |tool| tool[:id] }
     end
 
     private
diff --git a/enterprise/app/models/concerns/safe_endpoint_validatable.rb b/enterprise/app/models/concerns/safe_endpoint_validatable.rb
new file mode 100644
index 000000000..b151b10e7
--- /dev/null
+++ b/enterprise/app/models/concerns/safe_endpoint_validatable.rb
@@ -0,0 +1,84 @@
+module Concerns::SafeEndpointValidatable
+  extend ActiveSupport::Concern
+
+  FRONTEND_HOST = URI.parse(ENV.fetch('FRONTEND_URL', 'http://localhost:3000')).host.freeze
+  DISALLOWED_HOSTS = ['localhost', /\.local\z/i].freeze
+
+  included do
+    validate :validate_safe_endpoint_url
+  end
+
+  private
+
+  def validate_safe_endpoint_url
+    return if endpoint_url.blank?
+
+    uri = parse_endpoint_uri
+    return errors.add(:endpoint_url, 'must be a valid URL') unless uri
+
+    validate_endpoint_scheme(uri)
+    validate_endpoint_host(uri)
+    validate_not_ip_address(uri)
+    validate_no_unicode_chars(uri)
+  end
+
+  def parse_endpoint_uri
+    # Strip Liquid template syntax for validation
+    # Replace {{ variable }} with a placeholder value
+    sanitized_url = endpoint_url.gsub(/\{\{[^}]+\}\}/, 'placeholder')
+    URI.parse(sanitized_url)
+  rescue URI::InvalidURIError
+    nil
+  end
+
+  def validate_endpoint_scheme(uri)
+    return if uri.scheme == 'https'
+
+    errors.add(:endpoint_url, 'must use HTTPS protocol')
+  end
+
+  def validate_endpoint_host(uri)
+    if uri.host.blank?
+      errors.add(:endpoint_url, 'must have a valid hostname')
+      return
+    end
+
+    if uri.host == FRONTEND_HOST
+      errors.add(:endpoint_url, 'cannot point to the application itself')
+      return
+    end
+
+    DISALLOWED_HOSTS.each do |pattern|
+      matched = if pattern.is_a?(Regexp)
+                  uri.host =~ pattern
+                else
+                  uri.host.downcase == pattern
+                end
+
+      next unless matched
+
+      errors.add(:endpoint_url, 'cannot use disallowed hostname')
+      break
+    end
+  end
+
+  def validate_not_ip_address(uri)
+    # Check for IPv4
+    if /\A\d+\.\d+\.\d+\.\d+\z/.match?(uri.host)
+      errors.add(:endpoint_url, 'cannot be an IP address, must be a hostname')
+      return
+    end
+
+    # Check for IPv6
+    return unless uri.host.include?(':')
+
+    errors.add(:endpoint_url, 'cannot be an IP address, must be a hostname')
+  end
+
+  def validate_no_unicode_chars(uri)
+    return unless uri.host
+    return if /\A[\x00-\x7F]+\z/.match?(uri.host)
+
+    errors.add(:endpoint_url, 'hostname cannot contain non-ASCII characters')
+  end
+end
diff --git a/enterprise/app/models/concerns/toolable.rb b/enterprise/app/models/concerns/toolable.rb
new file mode 100644
index 000000000..ad047e8f8
--- /dev/null
+++ b/enterprise/app/models/concerns/toolable.rb
@@ -0,0 +1,91 @@
+module Concerns::Toolable
+  extend ActiveSupport::Concern
+
+  def tool(assistant)
+    custom_tool_record = self
+    # Convert slug to valid Ruby constant name (replace hyphens with underscores, then camelize)
+    class_name = custom_tool_record.slug.underscore.camelize
+
+    # Always create a fresh class to reflect current metadata
+    tool_class = Class.new(Captain::Tools::HttpTool) do
+      description custom_tool_record.description
+
+      custom_tool_record.param_schema.each do |param_def|
+        param param_def['name'].to_sym,
+              type: param_def['type'],
+              desc: param_def['description'],
+              required: param_def.fetch('required', true)
+      end
+    end
+
+    # Register the dynamically created class as a constant in the Captain::Tools namespace.
+    # This is required because RubyLLM's Tool base class derives the tool name from the class name
+    # (via Class#name). Anonymous classes created with Class.new have no name and return empty strings,
+    # which causes "Invalid 'tools[].function.name': empty string" errors from the LLM API.
+    # By setting it as a constant, the class gets a proper name (e.g., "Captain::Tools::CatFactLookup")
+    # which RubyLLM extracts and normalizes to "cat-fact-lookup" for the LLM API.
+    # We refresh the constant on each call to ensure tool metadata changes are reflected.
+    Captain::Tools.send(:remove_const, class_name) if Captain::Tools.const_defined?(class_name, false)
+    Captain::Tools.const_set(class_name, tool_class)
+
+    tool_class.new(assistant, self)
+  end
+
+  def build_request_url(params)
+    return endpoint_url if endpoint_url.blank? || endpoint_url.exclude?('{{')
+
+    render_template(endpoint_url, params)
+  end
+
+  def build_request_body(params)
+    return nil if request_template.blank?
+
+    render_template(request_template, params)
+  end
+
+  def build_auth_headers
+    return {} if auth_none?
+
+    case auth_type
+    when 'bearer'
+      { 'Authorization' => "Bearer #{auth_config['token']}" }
+    when 'api_key'
+      if auth_config['location'] == 'header'
+        { auth_config['name'] => auth_config['key'] }
+      else
+        {}
+      end
+    else
+      {}
+    end
+  end
+
+  def build_basic_auth_credentials
+    return nil unless auth_type == 'basic'
+
+    [auth_config['username'], auth_config['password']]
+  end
+
+  def format_response(raw_response_body)
+    return raw_response_body if response_template.blank?
+
+    response_data = parse_response_body(raw_response_body)
+    render_template(response_template, { 'response' => response_data, 'r' => response_data })
+  end
+
+  private
+
+  def render_template(template, context)
+    liquid_template = Liquid::Template.parse(template, error_mode: :strict)
+    liquid_template.render(context.deep_stringify_keys, registers: {}, strict_variables: true, strict_filters: true)
+  rescue Liquid::SyntaxError, Liquid::UndefinedVariable, Liquid::UndefinedFilter => e
+    Rails.logger.error("Liquid template error: #{e.message}")
+    raise "Template rendering failed: #{e.message}"
+  end
+
+  def parse_response_body(body)
+    JSON.parse(body)
+  rescue JSON::ParserError
+    body
+  end
+end
diff --git a/enterprise/app/models/enterprise/concerns/account.rb b/enterprise/app/models/enterprise/concerns/account.rb
index b52ac4b3e..b82d84b0a 100644
--- a/enterprise/app/models/enterprise/concerns/account.rb
+++ b/enterprise/app/models/enterprise/concerns/account.rb
@@ -10,6 +10,7 @@ module Enterprise::Concerns::Account
     has_many :captain_assistants, dependent: :destroy_async, class_name: 'Captain::Assistant'
     has_many :captain_assistant_responses, dependent: :destroy_async, class_name: 'Captain::AssistantResponse'
     has_many :captain_documents, dependent: :destroy_async, class_name: 'Captain::Document'
+    has_many :captain_custom_tools, dependent: :destroy_async, class_name: 'Captain::CustomTool'
 
     has_many :copilot_threads, dependent: :destroy_async
     has_many :voice_channels, dependent: :destroy_async, class_name: '::Channel::Voice'
diff --git a/enterprise/app/policies/captain/custom_tool_policy.rb b/enterprise/app/policies/captain/custom_tool_policy.rb
new file mode 100644
index 000000000..b88a23860
--- /dev/null
+++ b/enterprise/app/policies/captain/custom_tool_policy.rb
@@ -0,0 +1,21 @@
+class Captain::CustomToolPolicy < ApplicationPolicy
+  def index?
+    true
+  end
+
+  def show?
+    true
+  end
+
+  def create?
+    @account_user.administrator?
+  end
+
+  def update?
+    @account_user.administrator?
+  end
+
+  def destroy?
+    @account_user.administrator?
+  end
+end
diff --git a/enterprise/app/services/captain/assistant/agent_runner_service.rb b/enterprise/app/services/captain/assistant/agent_runner_service.rb
index 7a35e6d07..11a7dcad1 100644
--- a/enterprise/app/services/captain/assistant/agent_runner_service.rb
+++ b/enterprise/app/services/captain/assistant/agent_runner_service.rb
@@ -74,7 +74,12 @@ class Captain::Assistant::AgentRunnerService
   # Response formatting methods
   def process_agent_result(result)
     Rails.logger.info "[Captain V2] Agent result: #{result.inspect}"
-    format_response(result.output)
+    response = format_response(result.output)
+
+    # Extract agent name from context
+    response['agent_name'] = result.context&.dig(:current_agent)
+
+    response
   end
 
   def format_response(output)
diff --git a/enterprise/app/views/api/v1/accounts/captain/custom_tools/create.json.jbuilder b/enterprise/app/views/api/v1/accounts/captain/custom_tools/create.json.jbuilder
new file mode 100644
index 000000000..baf3cb3ac
--- /dev/null
+++ b/enterprise/app/views/api/v1/accounts/captain/custom_tools/create.json.jbuilder
@@ -0,0 +1 @@
+json.partial! 'api/v1/models/captain/custom_tool', custom_tool: @custom_tool
diff --git a/enterprise/app/views/api/v1/accounts/captain/custom_tools/index.json.jbuilder b/enterprise/app/views/api/v1/accounts/captain/custom_tools/index.json.jbuilder
new file mode 100644
index 000000000..c57a92261
--- /dev/null
+++ b/enterprise/app/views/api/v1/accounts/captain/custom_tools/index.json.jbuilder
@@ -0,0 +1,10 @@
+json.payload do
+  json.array! @custom_tools do |custom_tool|
+    json.partial! 'api/v1/models/captain/custom_tool', custom_tool: custom_tool
+  end
+end
+
+json.meta do
+  json.total_count @custom_tools.count
+  json.page 1
+end
diff --git a/enterprise/app/views/api/v1/accounts/captain/custom_tools/show.json.jbuilder b/enterprise/app/views/api/v1/accounts/captain/custom_tools/show.json.jbuilder
new file mode 100644
index 000000000..baf3cb3ac
--- /dev/null
+++ b/enterprise/app/views/api/v1/accounts/captain/custom_tools/show.json.jbuilder
@@ -0,0 +1 @@
+json.partial! 'api/v1/models/captain/custom_tool', custom_tool: @custom_tool
diff --git a/enterprise/app/views/api/v1/accounts/captain/custom_tools/update.json.jbuilder b/enterprise/app/views/api/v1/accounts/captain/custom_tools/update.json.jbuilder
new file mode 100644
index 000000000..baf3cb3ac
--- /dev/null
+++ b/enterprise/app/views/api/v1/accounts/captain/custom_tools/update.json.jbuilder
@@ -0,0 +1 @@
+json.partial! 'api/v1/models/captain/custom_tool', custom_tool: @custom_tool
diff --git a/enterprise/app/views/api/v1/models/captain/_custom_tool.json.jbuilder b/enterprise/app/views/api/v1/models/captain/_custom_tool.json.jbuilder
new file mode 100644
index 000000000..778b30061
--- /dev/null
+++ b/enterprise/app/views/api/v1/models/captain/_custom_tool.json.jbuilder
@@ -0,0 +1,15 @@
+json.id custom_tool.id
+json.slug custom_tool.slug
+json.title custom_tool.title
+json.description custom_tool.description
+json.endpoint_url custom_tool.endpoint_url
+json.http_method custom_tool.http_method
+json.request_template custom_tool.request_template
+json.response_template custom_tool.response_template
+json.auth_type custom_tool.auth_type
+json.auth_config custom_tool.auth_config
+json.param_schema custom_tool.param_schema
+json.enabled custom_tool.enabled
+json.account_id custom_tool.account_id
+json.created_at custom_tool.created_at.to_i
+json.updated_at custom_tool.updated_at.to_i
diff --git a/enterprise/lib/captain/prompts/assistant.liquid b/enterprise/lib/captain/prompts/assistant.liquid
index 69c967d73..0dc7d8577 100644
--- a/enterprise/lib/captain/prompts/assistant.liquid
+++ b/enterprise/lib/captain/prompts/assistant.liquid
@@ -2,12 +2,13 @@
 You are part of Captain, a multi-agent AI system designed for seamless agent coordination and task execution. You can transfer conversations to specialized agents using handoff functions (e.g., `handoff_to_[agent_name]`). These transfers happen in the background - never mention or draw attention to them in your responses.
 
 # Your Identity
-You are {{name}}, a helpful and knowledgeable assistant. Your role is to provide accurate information, assist with tasks, and ensure users get the help they need.
+You are {{name}}, a helpful and knowledgeable assistant. Your role is to primarily act as a orchestrator handling multiple scenarios by using handoff tools. Your job also involves providing accurate information, assisting with tasks, and ensuring the customer get the help they need.
 
 {{ description }}
 
-Don't digress away from your instructions, and use all the available tools at your disposal for solving customer issues. If you are to state something factual about {{product_name}} ensure you source that information from the FAQs only. Use the faq_lookup tool for this.
+Don't digress away from your instructions, and use all the available tools at your disposal for solving customer issues. If you are to state something factual about {{product_name}} ensure you source that information from the FAQs only. Use the `captain--tools--faq_lookup` tool for this.
 
+{% if conversation || contact -%}
 # Current Context
 
 Here's the metadata we have about the current conversation and the contact associated with it:
@@ -19,12 +20,16 @@ Here's the metadata we have about the current conversation and the contact assoc
 {% if contact -%}
 {% render 'contact' %}
 {% endif -%}
+{% endif -%}
 
 {% if response_guidelines.size > 0 -%}
 # Response Guidelines
 Your responses should follow these guidelines:
 {% for guideline in response_guidelines -%}
 - {{ guideline }}
+- Be conversational but professional
+- Provide actionable information
+- Include relevant details from tool responses
 {% endfor %}
 {% endif -%}
 
@@ -45,30 +50,26 @@ First, understand what the user is asking:
 - **Complexity**: Can you handle it or does it need specialized expertise?
 
 ## 2. Check for Specialized Scenarios First
-Before using any tools, check if the request matches any of these scenarios. If unclear, ask clarifying questions to determine if a scenario applies:
+
+Before using any tools, check if the request matches any of these scenarios. If it seems like a particular scenario matches, use the specific handoff tool to transfer the conversation to the specific agent. The following are the scenario agents that are available to you.
 
 {% for scenario in scenarios -%}
-### handoff_to_{{ scenario.key }}
-{{ scenario.description }}
-{% endfor -%}
+- {{ scenario.title }}: {{ scenario.description }}, use the `handoff_to_{{ scenario.key }}` tool to transfer the conversation to the {{ scenario.title }} agent.
+{% endfor %}
+If unclear, ask clarifying questions to determine if a scenario applies:
 
 ## 3. Handle the Request
-If no specialized scenario clearly matches, handle it yourself:
+If no specialized scenario clearly matches, handle it yourself in the following way
 
 ### For Questions and Information Requests
-1. **First, check existing knowledge**: Use `faq_lookup` tool to search for relevant information
-2. **If not found in FAQs**: Provide your best answer based on available context
-3. **If unable to answer**: Use `handoff` tool to transfer to a human expert
+1. **First, check existing knowledge**: Use `captain--tools--faq_lookup` tool to search for relevant information
+2. **If not found in FAQs**: Try to ask clarifying questions to gather more information
+3. **If unable to answer**: Use `captain--tools--handoff` tool to transfer to a human expert
 
 ### For Complex or Unclear Requests
 1. **Ask clarifying questions**: Gather more information if needed
 2. **Break down complex tasks**: Handle step by step or hand off if too complex
-3. **Escalate when necessary**: Use `handoff` tool for issues beyond your capabilities
-
-## Response Best Practices
-- Be conversational but professional
-- Provide actionable information
-- Include relevant details from tool responses
+3. **Escalate when necessary**: Use `captain--tools--handoff` tool for issues beyond your capabilities
 
 # Human Handoff Protocol
 Transfer to a human agent when:
@@ -77,4 +78,4 @@ Transfer to a human agent when:
 - The issue requires specialized knowledge or permissions you don't have
 - Multiple attempts to help have been unsuccessful
 
-When using the `handoff` tool, provide a clear reason that helps the human agent understand the context.
+When using the `captain--tools--handoff` tool, provide a clear reason that helps the human agent understand the context.
diff --git a/enterprise/lib/captain/prompts/scenario.liquid b/enterprise/lib/captain/prompts/scenario.liquid
index 339820b83..1148a7c3a 100644
--- a/enterprise/lib/captain/prompts/scenario.liquid
+++ b/enterprise/lib/captain/prompts/scenario.liquid
@@ -1,20 +1,44 @@
 # System context
-You are part of a multi-agent system where you've been handed off a conversation to handle a specific task.
-The handoff was seamless - the user is not aware of any transfer. Continue the conversation naturally.
+You are part of a multi-agent system where you've been handed off a conversation to handle a specific task. The handoff was seamless - the user is not aware of any transfer. Continue the conversation naturally.
 
 # Your Role
-You are a specialized agent called {{ title }}, your task is to handle the following scenario:
+You are a specialized agent called "{{ title }}", your task is to handle the following scenario:
 
 {{ instructions }}
 
+If you believe the user's request is not within the scope of your role, you can assign this conversation back to the orchestrator agent using the `handoff_to_{{ assistant_name }}` tool
+
+{% if conversation || contact %}
+# Current Context
+
+Here's the metadata we have about the current conversation and the contact associated with it:
+
 {% if conversation -%}
 {% render 'conversation' %}
+{% endif -%}
 
 {% if contact -%}
 {% render 'contact' %}
 {% endif -%}
 {% endif -%}
 
+
+{% if response_guidelines.size > 0 -%}
+# Response Guidelines
+Your responses should follow these guidelines:
+{% for guideline in response_guidelines -%}
+- {{ guideline }}
+{% endfor %}
+{% endif -%}
+
+{% if guardrails.size > 0 -%}
+# Guardrails
+Always respect these boundaries:
+{% for guardrail in guardrails -%}
+- {{ guardrail }}
+{% endfor %}
+{% endif -%}
+
 {% if tools.size > 0 -%}
 # Available Tools
 You have access to these tools:
diff --git a/enterprise/lib/captain/tools/http_tool.rb b/enterprise/lib/captain/tools/http_tool.rb
new file mode 100644
index 000000000..b634de04e
--- /dev/null
+++ b/enterprise/lib/captain/tools/http_tool.rb
@@ -0,0 +1,105 @@
+require 'agents'
+
+class Captain::Tools::HttpTool < Agents::Tool
+  def initialize(assistant, custom_tool)
+    @assistant = assistant
+    @custom_tool = custom_tool
+    super()
+  end
+
+  def active?
+    @custom_tool.enabled?
+  end
+
+  def perform(_tool_context, **params)
+    url = @custom_tool.build_request_url(params)
+    body = @custom_tool.build_request_body(params)
+
+    response = execute_http_request(url, body)
+    @custom_tool.format_response(response.body)
+  rescue StandardError => e
+    Rails.logger.error("HttpTool execution error for #{@custom_tool.slug}: #{e.class} - #{e.message}")
+    'An error occurred while executing the request'
+  end
+
+  private
+
+  PRIVATE_IP_RANGES = [
+    IPAddr.new('127.0.0.0/8'),    # IPv4 Loopback
+    IPAddr.new('10.0.0.0/8'),     # IPv4 Private network
+    IPAddr.new('172.16.0.0/12'),  # IPv4 Private network
+    IPAddr.new('192.168.0.0/16'), # IPv4 Private network
+    IPAddr.new('169.254.0.0/16'), # IPv4 Link-local
+    IPAddr.new('::1'),            # IPv6 Loopback
+    IPAddr.new('fc00::/7'),       # IPv6 Unique local addresses
+    IPAddr.new('fe80::/10')       # IPv6 Link-local
+  ].freeze
+
+  # Limit response size to prevent memory exhaustion and match LLM token limits
+  # 1MB of text ≈ 250K tokens, which exceeds most LLM context windows
+  MAX_RESPONSE_SIZE = 1.megabyte
+
+  def execute_http_request(url, body)
+    uri = URI.parse(url)
+
+    # Check if resolved IP is private
+    check_private_ip!(uri.host)
+
+    http = Net::HTTP.new(uri.host, uri.port)
+    http.use_ssl = uri.scheme == 'https'
+    http.read_timeout = 30
+    http.open_timeout = 10
+    http.max_retries = 0 # Disable redirects
+
+    request = build_http_request(uri, body)
+    apply_authentication(request)
+
+    response = http.request(request)
+
+    raise "HTTP request failed with status #{response.code}" unless response.is_a?(Net::HTTPSuccess)
+
+    validate_response!(response)
+
+    response
+  end
+
+  def check_private_ip!(hostname)
+    ip_address = IPAddr.new(Resolv.getaddress(hostname))
+
+    raise 'Request blocked: hostname resolves to private IP address' if PRIVATE_IP_RANGES.any? { |range| range.include?(ip_address) }
+  rescue Resolv::ResolvError, SocketError => e
+    raise "DNS resolution failed: #{e.message}"
+  end
+
+  def validate_response!(response)
+    content_length = response['content-length']&.to_i
+    if content_length && content_length > MAX_RESPONSE_SIZE
+      raise "Response size #{content_length} bytes exceeds maximum allowed #{MAX_RESPONSE_SIZE} bytes"
+    end
+
+    return unless response.body && response.body.bytesize > MAX_RESPONSE_SIZE
+
+    raise "Response body size #{response.body.bytesize} bytes exceeds maximum allowed #{MAX_RESPONSE_SIZE} bytes"
+  end
+
+  def build_http_request(uri, body)
+    if @custom_tool.http_method == 'POST'
+      request = Net::HTTP::Post.new(uri.request_uri)
+      if body
+        request.body = body
+        request['Content-Type'] = 'application/json'
+      end
+    else
+      request = Net::HTTP::Get.new(uri.request_uri)
+    end
+    request
+  end
+
+  def apply_authentication(request)
+    headers = @custom_tool.build_auth_headers
+    headers.each { |key, value| request[key] = value }
+
+    credentials = @custom_tool.build_basic_auth_credentials
+    request.basic_auth(*credentials) if credentials
+  end
+end
diff --git a/lib/limits.rb b/lib/limits.rb
index 7a2371207..5da178bf4 100644
--- a/lib/limits.rb
+++ b/lib/limits.rb
@@ -6,6 +6,7 @@ module Limits
   GREETING_MESSAGE_MAX_LENGTH = 10_000
   CATEGORIES_PER_PAGE = 1000
   AUTO_ASSIGNMENT_BULK_LIMIT = 100
+  MAX_CUSTOM_FILTERS_PER_USER = 1000
 
   def self.conversation_message_per_minute_limit
     ENV.fetch('CONVERSATION_MESSAGE_PER_MINUTE_LIMIT', '200').to_i
diff --git a/lib/tasks/captain_chat.rake b/lib/tasks/captain_chat.rake
index cfe257196..6dfb37211 100644
--- a/lib/tasks/captain_chat.rake
+++ b/lib/tasks/captain_chat.rake
@@ -118,7 +118,7 @@ class CaptainChatSession
   end
 
   def show_available_tools
-    available_tools = Captain::Assistant.available_tool_ids
+    available_tools = @assistant.available_tool_ids
     if available_tools.any?
       puts "🔧 Available Tools (#{available_tools.count}): #{available_tools.join(', ')}"
     else
diff --git a/spec/controllers/api/v1/accounts/custom_filters_controller_spec.rb b/spec/controllers/api/v1/accounts/custom_filters_controller_spec.rb
index 760100cf3..9c9469090 100644
--- a/spec/controllers/api/v1/accounts/custom_filters_controller_spec.rb
+++ b/spec/controllers/api/v1/accounts/custom_filters_controller_spec.rb
@@ -93,9 +93,9 @@ RSpec.describe 'Custom Filters API', type: :request do
         expect(json_response['name']).to eq 'vip-customers'
       end
 
-      it 'gives the error for 51st record' do
+      it 'gives the error for 1001st record' do
         CustomFilter.delete_all
-        CustomFilter::MAX_FILTER_PER_USER.times do
+        Limits::MAX_CUSTOM_FILTERS_PER_USER.times do
           create(:custom_filter, user: user, account: account)
         end
 
@@ -107,7 +107,7 @@ RSpec.describe 'Custom Filters API', type: :request do
         expect(response).to have_http_status(:unprocessable_entity)
         json_response = response.parsed_body
         expect(json_response['message']).to include(
-          'Account Limit reached. The maximum number of allowed custom filters for a user per account is 50.'
+          'Account Limit reached. The maximum number of allowed custom filters for a user per account is 1000.'
         )
       end
     end
diff --git a/spec/enterprise/controllers/api/v1/accounts/captain/custom_tools_controller_spec.rb b/spec/enterprise/controllers/api/v1/accounts/captain/custom_tools_controller_spec.rb
new file mode 100644
index 000000000..7a1526995
--- /dev/null
+++ b/spec/enterprise/controllers/api/v1/accounts/captain/custom_tools_controller_spec.rb
@@ -0,0 +1,281 @@
+require 'rails_helper'
+
+RSpec.describe 'Api::V1::Accounts::Captain::CustomTools', type: :request do
+  let(:account) { create(:account) }
+  let(:admin) { create(:user, account: account, role: :administrator) }
+  let(:agent) { create(:user, account: account, role: :agent) }
+
+  def json_response
+    JSON.parse(response.body, symbolize_names: true)
+  end
+
+  describe 'GET /api/v1/accounts/{account.id}/captain/custom_tools' do
+    context 'when it is an un-authenticated user' do
+      it 'returns unauthorized status' do
+        get "/api/v1/accounts/#{account.id}/captain/custom_tools"
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+
+    context 'when it is an agent' do
+      it 'returns success status' do
+        create_list(:captain_custom_tool, 3, account: account)
+        get "/api/v1/accounts/#{account.id}/captain/custom_tools",
+            headers: agent.create_new_auth_token,
+            as: :json
+
+        expect(response).to have_http_status(:success)
+        expect(json_response[:payload].length).to eq(3)
+      end
+    end
+
+    context 'when it is an admin' do
+      it 'returns success status and custom tools' do
+        create_list(:captain_custom_tool, 5, account: account)
+        get "/api/v1/accounts/#{account.id}/captain/custom_tools",
+            headers: admin.create_new_auth_token,
+            as: :json
+
+        expect(response).to have_http_status(:success)
+        expect(json_response[:payload].length).to eq(5)
+      end
+
+      it 'returns only enabled custom tools' do
+        create(:captain_custom_tool, account: account, enabled: true)
+        create(:captain_custom_tool, account: account, enabled: false)
+        get "/api/v1/accounts/#{account.id}/captain/custom_tools",
+            headers: admin.create_new_auth_token,
+            as: :json
+
+        expect(response).to have_http_status(:success)
+        expect(json_response[:payload].length).to eq(1)
+        expect(json_response[:payload].first[:enabled]).to be(true)
+      end
+    end
+  end
+
+  describe 'GET /api/v1/accounts/{account.id}/captain/custom_tools/{id}' do
+    let(:custom_tool) { create(:captain_custom_tool, account: account) }
+
+    context 'when it is an un-authenticated user' do
+      it 'returns unauthorized status' do
+        get "/api/v1/accounts/#{account.id}/captain/custom_tools/#{custom_tool.id}"
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+
+    context 'when it is an agent' do
+      it 'returns success status and custom tool' do
+        get "/api/v1/accounts/#{account.id}/captain/custom_tools/#{custom_tool.id}",
+            headers: agent.create_new_auth_token,
+            as: :json
+
+        expect(response).to have_http_status(:success)
+        expect(json_response[:id]).to eq(custom_tool.id)
+        expect(json_response[:title]).to eq(custom_tool.title)
+      end
+    end
+
+    context 'when custom tool does not exist' do
+      it 'returns not found status' do
+        get "/api/v1/accounts/#{account.id}/captain/custom_tools/999999",
+            headers: agent.create_new_auth_token
+
+        expect(response).to have_http_status(:not_found)
+      end
+    end
+  end
+
+  describe 'POST /api/v1/accounts/{account.id}/captain/custom_tools' do
+    let(:valid_attributes) do
+      {
+        custom_tool: {
+          title: 'Fetch Order Status',
+          description: 'Fetches order status from external API',
+          endpoint_url: 'https://api.example.com/orders/{{ order_id }}',
+          http_method: 'GET',
+          enabled: true,
+          param_schema: [
+            { name: 'order_id', type: 'string', description: 'The order ID', required: true }
+          ]
+        }
+      }
+    end
+
+    context 'when it is an un-authenticated user' do
+      it 'returns unauthorized status' do
+        post "/api/v1/accounts/#{account.id}/captain/custom_tools",
+             params: valid_attributes
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+
+    context 'when it is an agent' do
+      it 'returns unauthorized status' do
+        post "/api/v1/accounts/#{account.id}/captain/custom_tools",
+             params: valid_attributes,
+             headers: agent.create_new_auth_token
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+
+    context 'when it is an admin' do
+      it 'creates a new custom tool and returns success status' do
+        post "/api/v1/accounts/#{account.id}/captain/custom_tools",
+             params: valid_attributes,
+             headers: admin.create_new_auth_token,
+             as: :json
+
+        expect(response).to have_http_status(:success)
+        expect(json_response[:title]).to eq('Fetch Order Status')
+        expect(json_response[:description]).to eq('Fetches order status from external API')
+        expect(json_response[:enabled]).to be(true)
+        expect(json_response[:slug]).to eq('custom_fetch_order_status')
+        expect(json_response[:param_schema]).to eq([
+                                                     { name: 'order_id', type: 'string', description: 'The order ID', required: true }
+                                                   ])
+      end
+
+      context 'with invalid parameters' do
+        let(:invalid_attributes) do
+          {
+            custom_tool: {
+              title: '',
+              endpoint_url: ''
+            }
+          }
+        end
+
+        it 'returns unprocessable entity status' do
+          post "/api/v1/accounts/#{account.id}/captain/custom_tools",
+               params: invalid_attributes,
+               headers: admin.create_new_auth_token,
+               as: :json
+
+          expect(response).to have_http_status(:unprocessable_entity)
+        end
+      end
+
+      context 'with invalid endpoint URL' do
+        let(:invalid_url_attributes) do
+          {
+            custom_tool: {
+              title: 'Test Tool',
+              endpoint_url: 'http://localhost/api',
+              http_method: 'GET'
+            }
+          }
+        end
+
+        it 'returns unprocessable entity status' do
+          post "/api/v1/accounts/#{account.id}/captain/custom_tools",
+               params: invalid_url_attributes,
+               headers: admin.create_new_auth_token,
+               as: :json
+
+          expect(response).to have_http_status(:unprocessable_entity)
+        end
+      end
+    end
+  end
+
+  describe 'PATCH /api/v1/accounts/{account.id}/captain/custom_tools/{id}' do
+    let(:custom_tool) { create(:captain_custom_tool, account: account) }
+    let(:update_attributes) do
+      {
+        custom_tool: {
+          title: 'Updated Tool Title',
+          enabled: false
+        }
+      }
+    end
+
+    context 'when it is an un-authenticated user' do
+      it 'returns unauthorized status' do
+        patch "/api/v1/accounts/#{account.id}/captain/custom_tools/#{custom_tool.id}",
+              params: update_attributes
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+
+    context 'when it is an agent' do
+      it 'returns unauthorized status' do
+        patch "/api/v1/accounts/#{account.id}/captain/custom_tools/#{custom_tool.id}",
+              params: update_attributes,
+              headers: agent.create_new_auth_token
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+
+    context 'when it is an admin' do
+      it 'updates the custom tool and returns success status' do
+        patch "/api/v1/accounts/#{account.id}/captain/custom_tools/#{custom_tool.id}",
+              params: update_attributes,
+              headers: admin.create_new_auth_token,
+              as: :json
+
+        expect(response).to have_http_status(:success)
+        expect(json_response[:title]).to eq('Updated Tool Title')
+        expect(json_response[:enabled]).to be(false)
+      end
+
+      context 'with invalid parameters' do
+        let(:invalid_attributes) do
+          {
+            custom_tool: {
+              title: ''
+            }
+          }
+        end
+
+        it 'returns unprocessable entity status' do
+          patch "/api/v1/accounts/#{account.id}/captain/custom_tools/#{custom_tool.id}",
+                params: invalid_attributes,
+                headers: admin.create_new_auth_token,
+                as: :json
+
+          expect(response).to have_http_status(:unprocessable_entity)
+        end
+      end
+    end
+  end
+
+  describe 'DELETE /api/v1/accounts/{account.id}/captain/custom_tools/{id}' do
+    let!(:custom_tool) { create(:captain_custom_tool, account: account) }
+
+    context 'when it is an un-authenticated user' do
+      it 'returns unauthorized status' do
+        delete "/api/v1/accounts/#{account.id}/captain/custom_tools/#{custom_tool.id}"
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+
+    context 'when it is an agent' do
+      it 'returns unauthorized status' do
+        delete "/api/v1/accounts/#{account.id}/captain/custom_tools/#{custom_tool.id}",
+               headers: agent.create_new_auth_token
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+
+    context 'when it is an admin' do
+      it 'deletes the custom tool and returns no content status' do
+        expect do
+          delete "/api/v1/accounts/#{account.id}/captain/custom_tools/#{custom_tool.id}",
+                 headers: admin.create_new_auth_token
+        end.to change(Captain::CustomTool, :count).by(-1)
+
+        expect(response).to have_http_status(:no_content)
+      end
+
+      context 'when custom tool does not exist' do
+        it 'returns not found status' do
+          delete "/api/v1/accounts/#{account.id}/captain/custom_tools/999999",
+                 headers: admin.create_new_auth_token
+
+          expect(response).to have_http_status(:not_found)
+        end
+      end
+    end
+  end
+end
diff --git a/spec/enterprise/lib/captain/tools/http_tool_spec.rb b/spec/enterprise/lib/captain/tools/http_tool_spec.rb
new file mode 100644
index 000000000..d48af2752
--- /dev/null
+++ b/spec/enterprise/lib/captain/tools/http_tool_spec.rb
@@ -0,0 +1,241 @@
+require 'rails_helper'
+
+RSpec.describe Captain::Tools::HttpTool, type: :model do
+  let(:account) { create(:account) }
+  let(:assistant) { create(:captain_assistant, account: account) }
+  let(:custom_tool) { create(:captain_custom_tool, account: account) }
+  let(:tool) { described_class.new(assistant, custom_tool) }
+  let(:tool_context) { Struct.new(:state).new({}) }
+
+  describe '#active?' do
+    it 'returns true when custom tool is enabled' do
+      custom_tool.update!(enabled: true)
+
+      expect(tool.active?).to be true
+    end
+
+    it 'returns false when custom tool is disabled' do
+      custom_tool.update!(enabled: false)
+
+      expect(tool.active?).to be false
+    end
+  end
+
+  describe '#perform' do
+    context 'with GET request' do
+      before do
+        custom_tool.update!(
+          http_method: 'GET',
+          endpoint_url: 'https://example.com/orders/123',
+          response_template: nil
+        )
+        stub_request(:get, 'https://example.com/orders/123')
+          .to_return(status: 200, body: '{"status": "success"}')
+      end
+
+      it 'executes GET request and returns response body' do
+        result = tool.perform(tool_context)
+
+        expect(result).to eq('{"status": "success"}')
+        expect(WebMock).to have_requested(:get, 'https://example.com/orders/123')
+      end
+    end
+
+    context 'with POST request' do
+      before do
+        custom_tool.update!(
+          http_method: 'POST',
+          endpoint_url: 'https://example.com/orders',
+          request_template: '{"order_id": "{{ order_id }}"}',
+          response_template: nil
+        )
+        stub_request(:post, 'https://example.com/orders')
+          .with(body: '{"order_id": "123"}', headers: { 'Content-Type' => 'application/json' })
+          .to_return(status: 200, body: '{"created": true}')
+      end
+
+      it 'executes POST request with rendered body' do
+        result = tool.perform(tool_context, order_id: '123')
+
+        expect(result).to eq('{"created": true}')
+        expect(WebMock).to have_requested(:post, 'https://example.com/orders')
+          .with(body: '{"order_id": "123"}')
+      end
+    end
+
+    context 'with template variables in URL' do
+      before do
+        custom_tool.update!(
+          endpoint_url: 'https://example.com/orders/{{ order_id }}',
+          response_template: nil
+        )
+        stub_request(:get, 'https://example.com/orders/456')
+          .to_return(status: 200, body: '{"order_id": "456"}')
+      end
+
+      it 'renders URL template with params' do
+        result = tool.perform(tool_context, order_id: '456')
+
+        expect(result).to eq('{"order_id": "456"}')
+        expect(WebMock).to have_requested(:get, 'https://example.com/orders/456')
+      end
+    end
+
+    context 'with bearer token authentication' do
+      before do
+        custom_tool.update!(
+          auth_type: 'bearer',
+          auth_config: { 'token' => 'secret_bearer_token' },
+          endpoint_url: 'https://example.com/data',
+          response_template: nil
+        )
+        stub_request(:get, 'https://example.com/data')
+          .with(headers: { 'Authorization' => 'Bearer secret_bearer_token' })
+          .to_return(status: 200, body: '{"authenticated": true}')
+      end
+
+      it 'adds Authorization header with bearer token' do
+        result = tool.perform(tool_context)
+
+        expect(result).to eq('{"authenticated": true}')
+        expect(WebMock).to have_requested(:get, 'https://example.com/data')
+          .with(headers: { 'Authorization' => 'Bearer secret_bearer_token' })
+      end
+    end
+
+    context 'with basic authentication' do
+      before do
+        custom_tool.update!(
+          auth_type: 'basic',
+          auth_config: { 'username' => 'user123', 'password' => 'pass456' },
+          endpoint_url: 'https://example.com/data',
+          response_template: nil
+        )
+        stub_request(:get, 'https://example.com/data')
+          .with(basic_auth: %w[user123 pass456])
+          .to_return(status: 200, body: '{"authenticated": true}')
+      end
+
+      it 'adds basic auth credentials' do
+        result = tool.perform(tool_context)
+
+        expect(result).to eq('{"authenticated": true}')
+        expect(WebMock).to have_requested(:get, 'https://example.com/data')
+          .with(basic_auth: %w[user123 pass456])
+      end
+    end
+
+    context 'with API key authentication' do
+      before do
+        custom_tool.update!(
+          auth_type: 'api_key',
+          auth_config: { 'key' => 'api_key_123', 'location' => 'header', 'name' => 'X-API-Key' },
+          endpoint_url: 'https://example.com/data',
+          response_template: nil
+        )
+        stub_request(:get, 'https://example.com/data')
+          .with(headers: { 'X-API-Key' => 'api_key_123' })
+          .to_return(status: 200, body: '{"authenticated": true}')
+      end
+
+      it 'adds API key header' do
+        result = tool.perform(tool_context)
+
+        expect(result).to eq('{"authenticated": true}')
+        expect(WebMock).to have_requested(:get, 'https://example.com/data')
+          .with(headers: { 'X-API-Key' => 'api_key_123' })
+      end
+    end
+
+    context 'with response template' do
+      before do
+        custom_tool.update!(
+          endpoint_url: 'https://example.com/orders/123',
+          response_template: 'Order status: {{ response.status }}, ID: {{ response.order_id }}'
+        )
+        stub_request(:get, 'https://example.com/orders/123')
+          .to_return(status: 200, body: '{"status": "shipped", "order_id": "123"}')
+      end
+
+      it 'formats response using template' do
+        result = tool.perform(tool_context)
+
+        expect(result).to eq('Order status: shipped, ID: 123')
+      end
+    end
+
+    context 'when handling errors' do
+      it 'returns generic error message on network failure' do
+        custom_tool.update!(endpoint_url: 'https://example.com/data')
+        stub_request(:get, 'https://example.com/data').to_raise(SocketError.new('Failed to connect'))
+
+        result = tool.perform(tool_context)
+
+        expect(result).to eq('An error occurred while executing the request')
+      end
+
+      it 'returns generic error message on timeout' do
+        custom_tool.update!(endpoint_url: 'https://example.com/data')
+        stub_request(:get, 'https://example.com/data').to_timeout
+
+        result = tool.perform(tool_context)
+
+        expect(result).to eq('An error occurred while executing the request')
+      end
+
+      it 'returns generic error message on HTTP 404' do
+        custom_tool.update!(endpoint_url: 'https://example.com/data')
+        stub_request(:get, 'https://example.com/data').to_return(status: 404, body: 'Not found')
+
+        result = tool.perform(tool_context)
+
+        expect(result).to eq('An error occurred while executing the request')
+      end
+
+      it 'returns generic error message on HTTP 500' do
+        custom_tool.update!(endpoint_url: 'https://example.com/data')
+        stub_request(:get, 'https://example.com/data').to_return(status: 500, body: 'Server error')
+
+        result = tool.perform(tool_context)
+
+        expect(result).to eq('An error occurred while executing the request')
+      end
+
+      it 'logs error details' do
+        custom_tool.update!(endpoint_url: 'https://example.com/data')
+        stub_request(:get, 'https://example.com/data').to_raise(StandardError.new('Test error'))
+
+        expect(Rails.logger).to receive(:error).with(/HttpTool execution error.*Test error/)
+
+        tool.perform(tool_context)
+      end
+    end
+
+    context 'when integrating with Toolable methods' do
+      it 'correctly integrates URL rendering, body rendering, auth, and response formatting' do
+        custom_tool.update!(
+          http_method: 'POST',
+          endpoint_url: 'https://example.com/users/{{ user_id }}/orders',
+          request_template: '{"product": "{{ product }}", "quantity": {{ quantity }}}',
+          auth_type: 'bearer',
+          auth_config: { 'token' => 'integration_token' },
+          response_template: 'Created order #{{ response.order_number }} for {{ response.product }}'
+        )
+
+        stub_request(:post, 'https://example.com/users/42/orders')
+          .with(
+            body: '{"product": "Widget", "quantity": 5}',
+            headers: {
+              'Authorization' => 'Bearer integration_token',
+              'Content-Type' => 'application/json'
+            }
+          )
+          .to_return(status: 200, body: '{"order_number": "ORD-789", "product": "Widget"}')
+
+        result = tool.perform(tool_context, user_id: '42', product: 'Widget', quantity: 5)
+
+        expect(result).to eq('Created order #ORD-789 for Widget')
+      end
+    end
+  end
+end
diff --git a/spec/enterprise/models/captain/custom_tool_spec.rb b/spec/enterprise/models/captain/custom_tool_spec.rb
new file mode 100644
index 000000000..5f6c7b19a
--- /dev/null
+++ b/spec/enterprise/models/captain/custom_tool_spec.rb
@@ -0,0 +1,388 @@
+require 'rails_helper'
+
+RSpec.describe Captain::CustomTool, type: :model do
+  describe 'associations' do
+    it { is_expected.to belong_to(:account) }
+  end
+
+  describe 'validations' do
+    it { is_expected.to validate_presence_of(:title) }
+    it { is_expected.to validate_presence_of(:endpoint_url) }
+    it { is_expected.to define_enum_for(:http_method).with_values('GET' => 'GET', 'POST' => 'POST').backed_by_column_of_type(:string) }
+
+    it {
+      expect(subject).to define_enum_for(:auth_type).with_values('none' => 'none', 'bearer' => 'bearer', 'basic' => 'basic',
+                                                                 'api_key' => 'api_key').backed_by_column_of_type(:string).with_prefix(:auth)
+    }
+
+    describe 'slug uniqueness' do
+      let(:account) { create(:account) }
+
+      it 'validates uniqueness of slug scoped to account' do
+        create(:captain_custom_tool, account: account, slug: 'custom_test_tool')
+        duplicate = build(:captain_custom_tool, account: account, slug: 'custom_test_tool')
+
+        expect(duplicate).not_to be_valid
+        expect(duplicate.errors[:slug]).to include('has already been taken')
+      end
+
+      it 'allows same slug across different accounts' do
+        account2 = create(:account)
+        create(:captain_custom_tool, account: account, slug: 'custom_test_tool')
+        different_account_tool = build(:captain_custom_tool, account: account2, slug: 'custom_test_tool')
+
+        expect(different_account_tool).to be_valid
+      end
+    end
+
+    describe 'param_schema validation' do
+      let(:account) { create(:account) }
+
+      it 'is valid with proper param_schema' do
+        tool = build(:captain_custom_tool, account: account, param_schema: [
+                       { 'name' => 'order_id', 'type' => 'string', 'description' => 'Order ID', 'required' => true }
+                     ])
+
+        expect(tool).to be_valid
+      end
+
+      it 'is valid with empty param_schema' do
+        tool = build(:captain_custom_tool, account: account, param_schema: [])
+
+        expect(tool).to be_valid
+      end
+
+      it 'is invalid when param_schema is missing name' do
+        tool = build(:captain_custom_tool, account: account, param_schema: [
+                       { 'type' => 'string', 'description' => 'Order ID' }
+                     ])
+
+        expect(tool).not_to be_valid
+      end
+
+      it 'is invalid when param_schema is missing type' do
+        tool = build(:captain_custom_tool, account: account, param_schema: [
+                       { 'name' => 'order_id', 'description' => 'Order ID' }
+                     ])
+
+        expect(tool).not_to be_valid
+      end
+
+      it 'is invalid when param_schema is missing description' do
+        tool = build(:captain_custom_tool, account: account, param_schema: [
+                       { 'name' => 'order_id', 'type' => 'string' }
+                     ])
+
+        expect(tool).not_to be_valid
+      end
+
+      it 'is invalid with additional properties in param_schema' do
+        tool = build(:captain_custom_tool, account: account, param_schema: [
+                       { 'name' => 'order_id', 'type' => 'string', 'description' => 'Order ID', 'extra_field' => 'value' }
+                     ])
+
+        expect(tool).not_to be_valid
+      end
+
+      it 'is valid when required field is omitted (defaults to optional param)' do
+        tool = build(:captain_custom_tool, account: account, param_schema: [
+                       { 'name' => 'order_id', 'type' => 'string', 'description' => 'Order ID' }
+                     ])
+
+        expect(tool).to be_valid
+      end
+    end
+  end
+
+  describe 'scopes' do
+    let(:account) { create(:account) }
+
+    describe '.enabled' do
+      it 'returns only enabled custom tools' do
+        enabled_tool = create(:captain_custom_tool, account: account, enabled: true)
+        disabled_tool = create(:captain_custom_tool, account: account, enabled: false)
+
+        expect(described_class.enabled).to include(enabled_tool)
+        expect(described_class.enabled).not_to include(disabled_tool)
+      end
+    end
+  end
+
+  describe 'slug generation' do
+    let(:account) { create(:account) }
+
+    it 'generates slug from title on creation' do
+      tool = create(:captain_custom_tool, account: account, title: 'Fetch Order Status')
+
+      expect(tool.slug).to eq('custom_fetch_order_status')
+    end
+
+    it 'adds custom_ prefix to generated slug' do
+      tool = create(:captain_custom_tool, account: account, title: 'My Tool')
+
+      expect(tool.slug).to start_with('custom_')
+    end
+
+    it 'does not override manually set slug' do
+      tool = create(:captain_custom_tool, account: account, title: 'Test Tool', slug: 'custom_manual_slug')
+
+      expect(tool.slug).to eq('custom_manual_slug')
+    end
+
+    it 'handles slug collisions by appending random suffix' do
+      create(:captain_custom_tool, account: account, title: 'Test Tool', slug: 'custom_test_tool')
+      tool2 = create(:captain_custom_tool, account: account, title: 'Test Tool')
+
+      expect(tool2.slug).to match(/^custom_test_tool_[a-z0-9]{6}$/)
+    end
+
+    it 'handles multiple slug collisions' do
+      create(:captain_custom_tool, account: account, title: 'Test Tool', slug: 'custom_test_tool')
+      create(:captain_custom_tool, account: account, title: 'Test Tool', slug: 'custom_test_tool_abc123')
+      tool3 = create(:captain_custom_tool, account: account, title: 'Test Tool')
+
+      expect(tool3.slug).to match(/^custom_test_tool_[a-z0-9]{6}$/)
+      expect(tool3.slug).not_to eq('custom_test_tool')
+      expect(tool3.slug).not_to eq('custom_test_tool_abc123')
+    end
+
+    it 'does not generate slug when title is blank' do
+      tool = build(:captain_custom_tool, account: account, title: nil)
+
+      expect(tool).not_to be_valid
+      expect(tool.errors[:title]).to include("can't be blank")
+    end
+
+    it 'parameterizes title correctly' do
+      tool = create(:captain_custom_tool, account: account, title: 'Fetch Order Status & Details!')
+
+      expect(tool.slug).to eq('custom_fetch_order_status_details')
+    end
+  end
+
+  describe 'factory' do
+    it 'creates a valid custom tool with default attributes' do
+      tool = create(:captain_custom_tool)
+
+      expect(tool).to be_valid
+      expect(tool.title).to be_present
+      expect(tool.slug).to be_present
+      expect(tool.endpoint_url).to be_present
+      expect(tool.http_method).to eq('GET')
+      expect(tool.auth_type).to eq('none')
+      expect(tool.enabled).to be true
+    end
+
+    it 'creates valid tool with POST trait' do
+      tool = create(:captain_custom_tool, :with_post)
+
+      expect(tool.http_method).to eq('POST')
+      expect(tool.request_template).to be_present
+    end
+
+    it 'creates valid tool with bearer auth trait' do
+      tool = create(:captain_custom_tool, :with_bearer_auth)
+
+      expect(tool.auth_type).to eq('bearer')
+      expect(tool.auth_config['token']).to eq('test_bearer_token_123')
+    end
+
+    it 'creates valid tool with basic auth trait' do
+      tool = create(:captain_custom_tool, :with_basic_auth)
+
+      expect(tool.auth_type).to eq('basic')
+      expect(tool.auth_config['username']).to eq('test_user')
+      expect(tool.auth_config['password']).to eq('test_pass')
+    end
+
+    it 'creates valid tool with api key trait' do
+      tool = create(:captain_custom_tool, :with_api_key)
+
+      expect(tool.auth_type).to eq('api_key')
+      expect(tool.auth_config['key']).to eq('test_api_key')
+      expect(tool.auth_config['location']).to eq('header')
+    end
+  end
+
+  describe 'Toolable concern' do
+    let(:account) { create(:account) }
+
+    describe '#build_request_url' do
+      it 'returns static URL when no template variables present' do
+        tool = create(:captain_custom_tool, account: account, endpoint_url: 'https://api.example.com/orders')
+
+        expect(tool.build_request_url({})).to eq('https://api.example.com/orders')
+      end
+
+      it 'renders URL template with params' do
+        tool = create(:captain_custom_tool, account: account, endpoint_url: 'https://api.example.com/orders/{{ order_id }}')
+
+        expect(tool.build_request_url({ order_id: '12345' })).to eq('https://api.example.com/orders/12345')
+      end
+
+      it 'handles multiple template variables' do
+        tool = create(:captain_custom_tool, account: account,
+                                            endpoint_url: 'https://api.example.com/{{ resource }}/{{ id }}?details={{ show_details }}')
+
+        result = tool.build_request_url({ resource: 'orders', id: '123', show_details: 'true' })
+        expect(result).to eq('https://api.example.com/orders/123?details=true')
+      end
+    end
+
+    describe '#build_request_body' do
+      it 'returns nil when request_template is blank' do
+        tool = create(:captain_custom_tool, account: account, request_template: nil)
+
+        expect(tool.build_request_body({})).to be_nil
+      end
+
+      it 'renders request body template with params' do
+        tool = create(:captain_custom_tool, account: account,
+                                            request_template: '{ "order_id": "{{ order_id }}", "source": "chatwoot" }')
+
+        result = tool.build_request_body({ order_id: '12345' })
+        expect(result).to eq('{ "order_id": "12345", "source": "chatwoot" }')
+      end
+    end
+
+    describe '#build_auth_headers' do
+      it 'returns empty hash for none auth type' do
+        tool = create(:captain_custom_tool, account: account, auth_type: 'none')
+
+        expect(tool.build_auth_headers).to eq({})
+      end
+
+      it 'returns bearer token header' do
+        tool = create(:captain_custom_tool, :with_bearer_auth, account: account)
+
+        expect(tool.build_auth_headers).to eq({ 'Authorization' => 'Bearer test_bearer_token_123' })
+      end
+
+      it 'returns API key header when location is header' do
+        tool = create(:captain_custom_tool, :with_api_key, account: account)
+
+        expect(tool.build_auth_headers).to eq({ 'X-API-Key' => 'test_api_key' })
+      end
+
+      it 'returns empty hash for API key when location is not header' do
+        tool = create(:captain_custom_tool, account: account, auth_type: 'api_key',
+                                            auth_config: { key: 'test_key', location: 'query', name: 'api_key' })
+
+        expect(tool.build_auth_headers).to eq({})
+      end
+
+      it 'returns empty hash for basic auth' do
+        tool = create(:captain_custom_tool, :with_basic_auth, account: account)
+
+        expect(tool.build_auth_headers).to eq({})
+      end
+    end
+
+    describe '#build_basic_auth_credentials' do
+      it 'returns nil for non-basic auth types' do
+        tool = create(:captain_custom_tool, account: account, auth_type: 'none')
+
+        expect(tool.build_basic_auth_credentials).to be_nil
+      end
+
+      it 'returns username and password array for basic auth' do
+        tool = create(:captain_custom_tool, :with_basic_auth, account: account)
+
+        expect(tool.build_basic_auth_credentials).to eq(%w[test_user test_pass])
+      end
+    end
+
+    describe '#format_response' do
+      it 'returns raw response when no response_template' do
+        tool = create(:captain_custom_tool, account: account, response_template: nil)
+
+        expect(tool.format_response('raw response')).to eq('raw response')
+      end
+
+      it 'renders response template with JSON response' do
+        tool = create(:captain_custom_tool, account: account,
+                                            response_template: 'Order status: {{ response.status }}')
+        raw_response = '{"status": "shipped", "tracking": "123ABC"}'
+
+        result = tool.format_response(raw_response)
+        expect(result).to eq('Order status: shipped')
+      end
+
+      it 'handles response template with multiple fields' do
+        tool = create(:captain_custom_tool, account: account,
+                                            response_template: 'Order {{ response.id }} is {{ response.status }}. Tracking: {{ response.tracking }}')
+        raw_response = '{"id": "12345", "status": "delivered", "tracking": "ABC123"}'
+
+        result = tool.format_response(raw_response)
+        expect(result).to eq('Order 12345 is delivered. Tracking: ABC123')
+      end
+
+      it 'handles non-JSON response' do
+        tool = create(:captain_custom_tool, account: account,
+                                            response_template: 'Response: {{ response }}')
+        raw_response = 'plain text response'
+
+        result = tool.format_response(raw_response)
+        expect(result).to eq('Response: plain text response')
+      end
+    end
+
+    describe '#to_tool_metadata' do
+      it 'returns tool metadata hash with custom flag' do
+        tool = create(:captain_custom_tool, account: account,
+                                            slug: 'custom_test-tool',
+                                            title: 'Test Tool',
+                                            description: 'A test tool')
+
+        metadata = tool.to_tool_metadata
+        expect(metadata).to eq({
+                                 id: 'custom_test-tool',
+                                 title: 'Test Tool',
+                                 description: 'A test tool',
+                                 custom: true
+                               })
+      end
+    end
+
+    describe '#tool' do
+      let(:assistant) { create(:captain_assistant, account: account) }
+
+      it 'returns HttpTool instance' do
+        tool = create(:captain_custom_tool, account: account)
+
+        tool_instance = tool.tool(assistant)
+        expect(tool_instance).to be_a(Captain::Tools::HttpTool)
+      end
+
+      it 'sets description on the tool class' do
+        tool = create(:captain_custom_tool, account: account, description: 'Fetches order data')
+
+        tool_instance = tool.tool(assistant)
+        expect(tool_instance.description).to eq('Fetches order data')
+      end
+
+      it 'sets parameters on the tool class' do
+        tool = create(:captain_custom_tool, :with_params, account: account)
+
+        tool_instance = tool.tool(assistant)
+        params = tool_instance.parameters
+
+        expect(params.keys).to contain_exactly(:order_id, :include_details)
+        expect(params[:order_id].name).to eq(:order_id)
+        expect(params[:order_id].type).to eq('string')
+        expect(params[:order_id].description).to eq('The order ID')
+        expect(params[:order_id].required).to be true
+
+        expect(params[:include_details].name).to eq(:include_details)
+        expect(params[:include_details].required).to be false
+      end
+
+      it 'works with empty param_schema' do
+        tool = create(:captain_custom_tool, account: account, param_schema: [])
+
+        tool_instance = tool.tool(assistant)
+        expect(tool_instance.parameters).to be_empty
+      end
+    end
+  end
+end
diff --git a/spec/enterprise/models/captain/scenario_spec.rb b/spec/enterprise/models/captain/scenario_spec.rb
index 7a39559c3..45009a3b0 100644
--- a/spec/enterprise/models/captain/scenario_spec.rb
+++ b/spec/enterprise/models/captain/scenario_spec.rb
@@ -48,9 +48,9 @@ RSpec.describe Captain::Scenario, type: :model do
 
     before do
       # Mock available tools
-      allow(described_class).to receive(:available_tool_ids).and_return(%w[
-                                                                          add_contact_note add_private_note update_priority
-                                                                        ])
+      allow(described_class).to receive(:built_in_tool_ids).and_return(%w[
+                                                                         add_contact_note add_private_note update_priority
+                                                                       ])
     end
 
     describe 'validate_instruction_tools' do
@@ -102,6 +102,49 @@ RSpec.describe Captain::Scenario, type: :model do
         expect(scenario).not_to be_valid
         expect(scenario.errors[:instruction]).not_to include(/contains invalid tools/)
       end
+
+      it 'is valid with custom tool references' do
+        create(:captain_custom_tool, account: account, slug: 'custom_fetch-order')
+        scenario = build(:captain_scenario,
+                         assistant: assistant,
+                         account: account,
+                         instruction: 'Use [@Fetch Order](tool://custom_fetch-order) to get order details')
+
+        expect(scenario).to be_valid
+      end
+
+      it 'is invalid with custom tool from different account' do
+        other_account = create(:account)
+        create(:captain_custom_tool, account: other_account, slug: 'custom_fetch-order')
+        scenario = build(:captain_scenario,
+                         assistant: assistant,
+                         account: account,
+                         instruction: 'Use [@Fetch Order](tool://custom_fetch-order) to get order details')
+
+        expect(scenario).not_to be_valid
+        expect(scenario.errors[:instruction]).to include('contains invalid tools: custom_fetch-order')
+      end
+
+      it 'is invalid with disabled custom tool' do
+        create(:captain_custom_tool, account: account, slug: 'custom_fetch-order', enabled: false)
+        scenario = build(:captain_scenario,
+                         assistant: assistant,
+                         account: account,
+                         instruction: 'Use [@Fetch Order](tool://custom_fetch-order) to get order details')
+
+        expect(scenario).not_to be_valid
+        expect(scenario.errors[:instruction]).to include('contains invalid tools: custom_fetch-order')
+      end
+
+      it 'is valid with mixed static and custom tool references' do
+        create(:captain_custom_tool, account: account, slug: 'custom_fetch-order')
+        scenario = build(:captain_scenario,
+                         assistant: assistant,
+                         account: account,
+                         instruction: 'Use [@Add Note](tool://add_contact_note) and [@Fetch Order](tool://custom_fetch-order)')
+
+        expect(scenario).to be_valid
+      end
     end
 
     describe 'resolve_tool_references' do
@@ -146,6 +189,140 @@ RSpec.describe Captain::Scenario, type: :model do
     end
   end
 
+  describe 'custom tool integration' do
+    let(:account) { create(:account) }
+    let(:assistant) { create(:captain_assistant, account: account) }
+
+    before do
+      allow(described_class).to receive(:built_in_tool_ids).and_return(%w[add_contact_note])
+      allow(described_class).to receive(:built_in_agent_tools).and_return([
+                                                                            { id: 'add_contact_note', title: 'Add Contact Note',
+                                                                              description: 'Add a note' }
+                                                                          ])
+    end
+
+    describe '#resolved_tools' do
+      it 'includes custom tool metadata' do
+        create(:captain_custom_tool, account: account, slug: 'custom_fetch-order',
+                                     title: 'Fetch Order', description: 'Gets order details')
+        scenario = create(:captain_scenario,
+                          assistant: assistant,
+                          account: account,
+                          instruction: 'Use [@Fetch Order](tool://custom_fetch-order)')
+
+        resolved = scenario.send(:resolved_tools)
+        expect(resolved.length).to eq(1)
+        expect(resolved.first[:id]).to eq('custom_fetch-order')
+        expect(resolved.first[:title]).to eq('Fetch Order')
+        expect(resolved.first[:description]).to eq('Gets order details')
+      end
+
+      it 'includes both static and custom tools' do
+        create(:captain_custom_tool, account: account, slug: 'custom_fetch-order')
+        scenario = create(:captain_scenario,
+                          assistant: assistant,
+                          account: account,
+                          instruction: 'Use [@Add Note](tool://add_contact_note) and [@Fetch Order](tool://custom_fetch-order)')
+
+        resolved = scenario.send(:resolved_tools)
+        expect(resolved.length).to eq(2)
+        expect(resolved.map { |t| t[:id] }).to contain_exactly('add_contact_note', 'custom_fetch-order')
+      end
+
+      it 'excludes disabled custom tools' do
+        custom_tool = create(:captain_custom_tool, account: account, slug: 'custom_fetch-order', enabled: true)
+        scenario = create(:captain_scenario,
+                          assistant: assistant,
+                          account: account,
+                          instruction: 'Use [@Fetch Order](tool://custom_fetch-order)')
+
+        custom_tool.update!(enabled: false)
+
+        resolved = scenario.send(:resolved_tools)
+        expect(resolved).to be_empty
+      end
+    end
+
+    describe '#resolve_tool_instance' do
+      it 'returns HttpTool instance for custom tools' do
+        create(:captain_custom_tool, account: account, slug: 'custom_fetch-order')
+        scenario = create(:captain_scenario, assistant: assistant, account: account)
+
+        tool_metadata = { id: 'custom_fetch-order', custom: true }
+        tool_instance = scenario.send(:resolve_tool_instance, tool_metadata)
+        expect(tool_instance).to be_a(Captain::Tools::HttpTool)
+      end
+
+      it 'returns nil for disabled custom tools' do
+        create(:captain_custom_tool, account: account, slug: 'custom_fetch-order', enabled: false)
+        scenario = create(:captain_scenario, assistant: assistant, account: account)
+
+        tool_metadata = { id: 'custom_fetch-order', custom: true }
+        tool_instance = scenario.send(:resolve_tool_instance, tool_metadata)
+        expect(tool_instance).to be_nil
+      end
+
+      it 'returns static tool instance for non-custom tools' do
+        scenario = create(:captain_scenario, assistant: assistant, account: account)
+        allow(described_class).to receive(:resolve_tool_class).with('add_contact_note').and_return(
+          Class.new do
+            def initialize(_assistant); end
+          end
+        )
+
+        tool_metadata = { id: 'add_contact_note' }
+        tool_instance = scenario.send(:resolve_tool_instance, tool_metadata)
+        expect(tool_instance).not_to be_nil
+        expect(tool_instance).not_to be_a(Captain::Tools::HttpTool)
+      end
+    end
+
+    describe '#agent_tools' do
+      it 'returns array of tool instances including custom tools' do
+        create(:captain_custom_tool, account: account, slug: 'custom_fetch-order')
+        scenario = create(:captain_scenario,
+                          assistant: assistant,
+                          account: account,
+                          instruction: 'Use [@Fetch Order](tool://custom_fetch-order)')
+
+        tools = scenario.send(:agent_tools)
+        expect(tools.length).to eq(1)
+        expect(tools.first).to be_a(Captain::Tools::HttpTool)
+      end
+
+      it 'excludes disabled custom tools from execution' do
+        custom_tool = create(:captain_custom_tool, account: account, slug: 'custom_fetch-order', enabled: true)
+        scenario = create(:captain_scenario,
+                          assistant: assistant,
+                          account: account,
+                          instruction: 'Use [@Fetch Order](tool://custom_fetch-order)')
+
+        custom_tool.update!(enabled: false)
+
+        tools = scenario.send(:agent_tools)
+        expect(tools).to be_empty
+      end
+
+      it 'returns mixed static and custom tool instances' do
+        create(:captain_custom_tool, account: account, slug: 'custom_fetch-order')
+        scenario = create(:captain_scenario,
+                          assistant: assistant,
+                          account: account,
+                          instruction: 'Use [@Add Note](tool://add_contact_note) and [@Fetch Order](tool://custom_fetch-order)')
+
+        allow(described_class).to receive(:resolve_tool_class).with('add_contact_note').and_return(
+          Class.new do
+            def initialize(_assistant); end
+          end
+        )
+
+        tools = scenario.send(:agent_tools)
+        expect(tools.length).to eq(2)
+        expect(tools.last).to be_a(Captain::Tools::HttpTool)
+      end
+    end
+  end
+
   describe 'factory' do
     it 'creates a valid scenario with associations' do
       account = create(:account)
diff --git a/spec/enterprise/models/concerns/captain_tools_helpers_spec.rb b/spec/enterprise/models/concerns/captain_tools_helpers_spec.rb
index afe482385..7e36e9006 100644
--- a/spec/enterprise/models/concerns/captain_tools_helpers_spec.rb
+++ b/spec/enterprise/models/concerns/captain_tools_helpers_spec.rb
@@ -42,58 +42,6 @@ RSpec.describe Concerns::CaptainToolsHelpers, type: :concern do
     end
   end
 
-  describe '.available_agent_tools' do
-    before do
-      # Mock the YAML file loading
-      allow(YAML).to receive(:load_file).and_return([
-                                                      {
-                                                        'id' => 'add_contact_note',
-                                                        'title' => 'Add Contact Note',
-                                                        'description' => 'Add a note to a contact',
-                                                        'icon' => 'note-add'
-                                                      },
-                                                      {
-                                                        'id' => 'invalid_tool',
-                                                        'title' => 'Invalid Tool',
-                                                        'description' => 'This tool does not exist',
-                                                        'icon' => 'invalid'
-                                                      }
-                                                    ])
-
-      # Mock class resolution - only add_contact_note exists
-      allow(test_class).to receive(:resolve_tool_class) do |tool_id|
-        case tool_id
-        when 'add_contact_note'
-          Captain::Tools::AddContactNoteTool
-        end
-      end
-    end
-
-    it 'returns only resolvable tools' do
-      tools = test_class.available_agent_tools
-
-      expect(tools.length).to eq(1)
-      expect(tools.first).to eq({
-                                  id: 'add_contact_note',
-                                  title: 'Add Contact Note',
-                                  description: 'Add a note to a contact',
-                                  icon: 'note-add'
-                                })
-    end
-
-    it 'logs warnings for unresolvable tools' do
-      expect(Rails.logger).to receive(:warn).with('Tool class not found for ID: invalid_tool')
-
-      test_class.available_agent_tools
-    end
-
-    it 'memoizes the result' do
-      expect(YAML).to receive(:load_file).once.and_return([])
-
-      2.times { test_class.available_agent_tools }
-    end
-  end
-
   describe '.resolve_tool_class' do
     it 'resolves valid tool classes' do
       # Mock the constantize to return a class
@@ -116,28 +64,6 @@ RSpec.describe Concerns::CaptainToolsHelpers, type: :concern do
     end
   end
 
-  describe '.available_tool_ids' do
-    before do
-      allow(test_class).to receive(:available_agent_tools).and_return([
-                                                                        { id: 'add_contact_note', title: 'Add Contact Note', description: '...',
-                                                                          icon: 'note' },
-                                                                        { id: 'update_priority', title: 'Update Priority', description: '...',
-                                                                          icon: 'priority' }
-                                                                      ])
-    end
-
-    it 'returns array of tool IDs' do
-      ids = test_class.available_tool_ids
-      expect(ids).to eq(%w[add_contact_note update_priority])
-    end
-
-    it 'memoizes the result' do
-      expect(test_class).to receive(:available_agent_tools).once.and_return([])
-
-      2.times { test_class.available_tool_ids }
-    end
-  end
-
   describe '#extract_tool_ids_from_text' do
     it 'extracts tool IDs from text' do
       text = 'First [@Add Contact Note](tool://add_contact_note) then [@Update Priority](tool://update_priority)'
diff --git a/spec/enterprise/services/captain/assistant/agent_runner_service_spec.rb b/spec/enterprise/services/captain/assistant/agent_runner_service_spec.rb
index f31177fc2..4ee269c48 100644
--- a/spec/enterprise/services/captain/assistant/agent_runner_service_spec.rb
+++ b/spec/enterprise/services/captain/assistant/agent_runner_service_spec.rb
@@ -13,7 +13,7 @@ RSpec.describe Captain::Assistant::AgentRunnerService do
   let(:mock_runner) { instance_double(Agents::Runner) }
   let(:mock_agent) { instance_double(Agents::Agent) }
   let(:mock_scenario_agent) { instance_double(Agents::Agent) }
-  let(:mock_result) { instance_double(Agents::RunResult, output: { 'response' => 'Test response' }) }
+  let(:mock_result) { instance_double(Agents::RunResult, output: { 'response' => 'Test response' }, context: nil) }
 
   let(:message_history) do
     [
@@ -99,7 +99,7 @@ RSpec.describe Captain::Assistant::AgentRunnerService do
     it 'processes and formats agent result' do
       result = service.generate_response(message_history: message_history)
 
-      expect(result).to eq({ 'response' => 'Test response' })
+      expect(result).to eq({ 'response' => 'Test response', 'agent_name' => nil })
     end
 
     context 'when no scenarios are enabled' do
@@ -118,14 +118,15 @@ RSpec.describe Captain::Assistant::AgentRunnerService do
     end
 
     context 'when agent result is a string' do
-      let(:mock_result) { instance_double(Agents::RunResult, output: 'Simple string response') }
+      let(:mock_result) { instance_double(Agents::RunResult, output: 'Simple string response', context: nil) }
 
       it 'formats string response correctly' do
         result = service.generate_response(message_history: message_history)
 
         expect(result).to eq({
                                'response' => 'Simple string response',
-                               'reasoning' => 'Processed by agent'
+                               'reasoning' => 'Processed by agent',
+                               'agent_name' => nil
                              })
       end
     end
diff --git a/spec/factories/captain/custom_tool.rb b/spec/factories/captain/custom_tool.rb
new file mode 100644
index 000000000..2bfcbf360
--- /dev/null
+++ b/spec/factories/captain/custom_tool.rb
@@ -0,0 +1,51 @@
+FactoryBot.define do
+  factory :captain_custom_tool, class: 'Captain::CustomTool' do
+    sequence(:title) { |n| "Custom Tool #{n}" }
+    description { 'A custom HTTP tool for external API integration' }
+    endpoint_url { 'https://api.example.com/endpoint' }
+    http_method { 'GET' }
+    auth_type { 'none' }
+    auth_config { {} }
+    param_schema { [] }
+    enabled { true }
+    association :account
+
+    trait :with_post do
+      http_method { 'POST' }
+      request_template { '{ "key": "{{ value }}" }' }
+    end
+
+    trait :with_bearer_auth do
+      auth_type { 'bearer' }
+      auth_config { { token: 'test_bearer_token_123' } }
+    end
+
+    trait :with_basic_auth do
+      auth_type { 'basic' }
+      auth_config { { username: 'test_user', password: 'test_pass' } }
+    end
+
+    trait :with_api_key do
+      auth_type { 'api_key' }
+      auth_config { { key: 'test_api_key', location: 'header', name: 'X-API-Key' } }
+    end
+
+    trait :with_templates do
+      request_template { '{ "order_id": "{{ order_id }}", "source": "chatwoot" }' }
+      response_template { 'Order status: {{ response.status }}' }
+    end
+
+    trait :with_params do
+      param_schema do
+        [
+          { 'name' => 'order_id', 'type' => 'string', 'description' => 'The order ID', 'required' => true },
+          { 'name' => 'include_details', 'type' => 'boolean', 'description' => 'Include order details', 'required' => false }
+        ]
+      end
+    end
+
+    trait :disabled do
+      enabled { false }
+    end
+  end
+end