diff --git a/docs/mammon-api.yml b/docs/mammon-api.yml
index 87217ed..406ff22 100644
--- a/docs/mammon-api.yml
+++ b/docs/mammon-api.yml
@@ -58,6 +58,24 @@ paths:
                 $ref: "#/components/schemas/RuleBookResponse"
         "400":
           description: Invalid request (e.g. blank name)
+    delete:
+      tags:
+      - rule-book
+      summary: Delete a rule book
+      operationId: deleteRuleBook
+      parameters:
+      - name: ruleBookId
+        in: path
+        description: Id of the rule book
+        required: true
+        schema:
+          type: string
+          format: uuid
+      responses:
+        "204":
+          description: The rule book was deleted
+        "400":
+          description: The rule book is associated to a character
   /ledgers/main/{ledgerId}:
     put:
       tags:
@@ -439,7 +457,7 @@ components:
           type: array
           items:
             type: string
-            pattern: "[a-z]+(-[a-z]+)*"
+            pattern: "[a-z][a-zA-Z0-9]*"
         script:
           type: string
       required:
@@ -461,7 +479,7 @@ components:
           type: array
           items:
             type: string
-            pattern: "[a-z]+(-[a-z]+)*"
+            pattern: "[a-z][a-zA-Z0-9]*"
         script:
           type: string
       required:
@@ -571,7 +589,7 @@ components:
           type: array
           items:
             type: string
-            pattern: "[a-z]+(-[a-z]+)*"
+            pattern: "[a-z][a-zA-Z0-9]*"
         script:
           type: string
       required:
diff --git a/src/App.vue b/src/App.vue
index 773444b..c3670ec 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -2,6 +2,7 @@
 import {computed} from 'vue';
 import {RouterView, useRoute} from 'vue-router';
 import {Sidebar} from './sidebar';
+import {ConfirmModal} from '@/confirm';
 import {routeNames} from '@/routes';
 
 const route = useRoute();
@@ -21,6 +22,7 @@ const hideSidebar = computed(() => {
             <RouterView />
         </div>
     </template>
+    <ConfirmModal />
 </template>
 
 <style scoped>
diff --git a/src/confirm/ConfirmModal.vue b/src/confirm/ConfirmModal.vue
new file mode 100644
index 0000000..5ef60e8
--- /dev/null
+++ b/src/confirm/ConfirmModal.vue
@@ -0,0 +1,45 @@
+<script setup lang="ts">
+import {computed} from "vue";
+import {storeToRefs} from "pinia";
+import {Modal} from "@/components";
+import {useConfirmStore} from "./useConfirm";
+
+const confirmStore = useConfirmStore();
+const {open, options} = storeToRefs(confirmStore);
+const {accept, cancel} = confirmStore;
+
+const modalOpen = computed({
+  get: () => open.value,
+  set: value => {
+    if (!value) {
+      cancel();
+    }
+  },
+});
+</script>
+
+<template>
+  <Modal v-model:open="modalOpen">
+    <div class="bg-slate-800 rounded pb-4 w-96">
+      <span class="m-2">{{ options.title ?? "Confirm" }}</span>
+      <hr />
+      <div class="m-4">{{ options.message }}</div>
+      <div class="flex justify-end">
+        <button class="me-2" @click="cancel">{{ options.cancelLabel ?? "Cancel" }}</button>
+        <button class="confirm me-4" :class="options.danger ? 'danger' : ''" @click="accept">{{ options.confirmLabel ?? "Confirm" }}</button>
+      </div>
+    </div>
+  </Modal>
+</template>
+
+<style scoped>
+@reference "@/style.css";
+
+button.confirm {
+  @apply border-emerald-500 bg-emerald-500 hover:bg-emerald-600;
+
+  &.danger {
+    @apply border-amber-900 bg-amber-900 hover:bg-amber-800;
+  }
+}
+</style>
\ No newline at end of file
diff --git a/src/confirm/index.ts b/src/confirm/index.ts
new file mode 100644
index 0000000..ad55037
--- /dev/null
+++ b/src/confirm/index.ts
@@ -0,0 +1,3 @@
+export { default as ConfirmModal } from './ConfirmModal.vue';
+export { confirm, useConfirmStore } from './useConfirm';
+export type { ConfirmOptions } from './useConfirm';
\ No newline at end of file
diff --git a/src/confirm/useConfirm.ts b/src/confirm/useConfirm.ts
new file mode 100644
index 0000000..5bbe1a8
--- /dev/null
+++ b/src/confirm/useConfirm.ts
@@ -0,0 +1,37 @@
+import {defineStore} from "pinia";
+import {ref} from "vue";
+
+export interface ConfirmOptions {
+    title?: string;
+    message: string;
+    confirmLabel?: string;
+    cancelLabel?: string;
+    danger?: boolean;
+}
+
+export const useConfirmStore = defineStore('confirm', () => {
+    const open = ref(false);
+    const options = ref<ConfirmOptions>({message: ""});
+    let resolver: ((value: boolean) => void) | undefined;
+
+    const settle = (value: boolean) => {
+        open.value = false;
+        resolver?.(value);
+        resolver = undefined;
+    };
+
+    const confirm = (opts: ConfirmOptions | string): Promise<boolean> => {
+        options.value = typeof opts === "string" ? {message: opts} : opts;
+        open.value = true;
+        return new Promise<boolean>(resolve => {
+            resolver = resolve;
+        });
+    };
+
+    const accept = () => settle(true);
+    const cancel = () => settle(false);
+
+    return {open, options, confirm, accept, cancel};
+});
+
+export const confirm = (opts: ConfirmOptions | string): Promise<boolean> => useConfirmStore().confirm(opts);
\ No newline at end of file
diff --git a/src/generated/mammon/api.ts b/src/generated/mammon/api.ts
index 38c479c..df4b63f 100644
--- a/src/generated/mammon/api.ts
+++ b/src/generated/mammon/api.ts
@@ -1313,6 +1313,39 @@ export const RuleBookApiAxiosParamCreator = function (configuration?: Configurat
                 options: localVarRequestOptions,
             };
         },
+        /**
+         * 
+         * @summary Delete a rule book
+         * @param {string} ruleBookId Id of the rule book
+         * @param {*} [options] Override http request option.
+         * @throws {RequiredError}
+         */
+        deleteRuleBook: async (ruleBookId: string, options: RawAxiosRequestConfig = {}): Promise<RequestArgs> => {
+            // verify required parameter 'ruleBookId' is not null or undefined
+            assertParamExists('deleteRuleBook', 'ruleBookId', ruleBookId)
+            const localVarPath = `/rule-books/{ruleBookId}`
+                .replace('{ruleBookId}', encodeURIComponent(String(ruleBookId)));
+            // use dummy base URL string because the URL constructor only accepts absolute URLs.
+            const localVarUrlObj = new URL(localVarPath, DUMMY_BASE_URL);
+            let baseOptions;
+            if (configuration) {
+                baseOptions = configuration.baseOptions;
+            }
+
+            const localVarRequestOptions = { method: 'DELETE', ...baseOptions, ...options};
+            const localVarHeaderParameter = {} as any;
+            const localVarQueryParameter = {} as any;
+
+
+            setSearchParams(localVarUrlObj, localVarQueryParameter);
+            let headersFromBaseOptions = baseOptions && baseOptions.headers ? baseOptions.headers : {};
+            localVarRequestOptions.headers = {...localVarHeaderParameter, ...headersFromBaseOptions, ...options.headers};
+
+            return {
+                url: toPathString(localVarUrlObj),
+                options: localVarRequestOptions,
+            };
+        },
         /**
          * 
          * @summary Find all rule books
@@ -1468,6 +1501,19 @@ export const RuleBookApiFp = function(configuration?: Configuration) {
             const localVarOperationServerBasePath = operationServerMap['RuleBookApi.createRuleBook']?.[localVarOperationServerIndex]?.url;
             return (axios, basePath) => createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration)(axios, localVarOperationServerBasePath || basePath);
         },
+        /**
+         * 
+         * @summary Delete a rule book
+         * @param {string} ruleBookId Id of the rule book
+         * @param {*} [options] Override http request option.
+         * @throws {RequiredError}
+         */
+        async deleteRuleBook(ruleBookId: string, options?: RawAxiosRequestConfig): Promise<(axios?: AxiosInstance, basePath?: string) => AxiosPromise<void>> {
+            const localVarAxiosArgs = await localVarAxiosParamCreator.deleteRuleBook(ruleBookId, options);
+            const localVarOperationServerIndex = configuration?.serverIndex ?? 0;
+            const localVarOperationServerBasePath = operationServerMap['RuleBookApi.deleteRuleBook']?.[localVarOperationServerIndex]?.url;
+            return (axios, basePath) => createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration)(axios, localVarOperationServerBasePath || basePath);
+        },
         /**
          * 
          * @summary Find all rule books
@@ -1538,6 +1584,16 @@ export const RuleBookApiFactory = function (configuration?: Configuration, baseP
         createRuleBook(createRuleBookRequest: CreateRuleBookRequest, options?: RawAxiosRequestConfig): AxiosPromise<RuleBookResponse> {
             return localVarFp.createRuleBook(createRuleBookRequest, options).then((request) => request(axios, basePath));
         },
+        /**
+         * 
+         * @summary Delete a rule book
+         * @param {string} ruleBookId Id of the rule book
+         * @param {*} [options] Override http request option.
+         * @throws {RequiredError}
+         */
+        deleteRuleBook(ruleBookId: string, options?: RawAxiosRequestConfig): AxiosPromise<void> {
+            return localVarFp.deleteRuleBook(ruleBookId, options).then((request) => request(axios, basePath));
+        },
         /**
          * 
          * @summary Find all rule books
@@ -1595,6 +1651,17 @@ export class RuleBookApi extends BaseAPI {
         return RuleBookApiFp(this.configuration).createRuleBook(createRuleBookRequest, options).then((request) => request(this.axios, this.basePath));
     }
 
+    /**
+     * 
+     * @summary Delete a rule book
+     * @param {string} ruleBookId Id of the rule book
+     * @param {*} [options] Override http request option.
+     * @throws {RequiredError}
+     */
+    public deleteRuleBook(ruleBookId: string, options?: RawAxiosRequestConfig) {
+        return RuleBookApiFp(this.configuration).deleteRuleBook(ruleBookId, options).then((request) => request(this.axios, this.basePath));
+    }
+
     /**
      * 
      * @summary Find all rule books
diff --git a/src/pages/rules/ListRuleBooks.vue b/src/pages/rules/ListRuleBooks.vue
index b90056a..1fe39cd 100644
--- a/src/pages/rules/ListRuleBooks.vue
+++ b/src/pages/rules/ListRuleBooks.vue
@@ -1,10 +1,24 @@
 <script setup lang="ts">
 import {storeToRefs} from "pinia";
-import {PencilSquareIcon, TrashIcon} from "@heroicons/vue/24/outline";
-import {useRuleBooksStore} from "@/rules";
+import {DocumentDuplicateIcon, PencilSquareIcon, TrashIcon} from "@heroicons/vue/24/outline";
+import {confirm} from "@/confirm";
+import {RuleBook, useRuleBooksStore} from "@/rules";
 import {routeNames} from "@/routes";
 
-const {ruleBooks} = storeToRefs(useRuleBooksStore());
+const ruleBooksStore = useRuleBooksStore();
+const {ruleBooks} = storeToRefs(ruleBooksStore);
+
+const duplicate = async (ruleBook: RuleBook) => {
+  if (await confirm({title: "Duplicate Rule Book", message: `Duplicate ${ruleBook.name}?`, confirmLabel: "Duplicate"})) {
+    await ruleBooksStore.duplicate(ruleBook);
+  }
+};
+
+const remove = async (ruleBook: RuleBook) => {
+  if (await confirm({title: "Delete Rule Book", message: `Delete ${ruleBook.name}?`, confirmLabel: "Delete", danger: true})) {
+    await ruleBooksStore.remove(ruleBook.ruleBookId);
+  }
+};
 
 </script>
 
@@ -16,7 +30,8 @@ const {ruleBooks} = storeToRefs(useRuleBooksStore());
     <div v-for="ruleBook in ruleBooks" :key="ruleBook.ruleBookId" class="flex items-center mt-2">
       <span class="flex grow me-2">{{ruleBook.name}}</span>
       <RouterLink class="btn-icon me-1" :to="{ name: routeNames.editRuleBook, params: { ruleBookId: ruleBook.ruleBookId } }"><PencilSquareIcon /></RouterLink>
-      <button class="btn-icon"><TrashIcon /></button>
+      <button class="btn-icon me-1" @click="duplicate(ruleBook)"><DocumentDuplicateIcon /></button>
+      <button class="btn-icon text-amber-700 hover:text-amber-600" @click="remove(ruleBook)"><TrashIcon /></button>
     </div>
   </div>
 </template>
\ No newline at end of file
diff --git a/src/rules/rules.ts b/src/rules/rules.ts
index 558e1cc..13ed86a 100644
--- a/src/rules/rules.ts
+++ b/src/rules/rules.ts
@@ -32,12 +32,22 @@ export const useRuleBooksStore = defineStore('rule-books', () => {
     const findById = (ruleBookId: string): RuleBook | undefined => ruleBooks.value.find(rb => rb.ruleBookId === ruleBookId);
     const create = (ruleBook: CreateRuleBookRequest) => ruleBookApi.createRuleBook(ruleBook).then(response => addRuleBook(response.data));
     const update = (ruleBookId: string, ruleBook: CreateRuleBookRequest) => ruleBookApi.updateRuleBook(ruleBookId, ruleBook).then(response => replaceRuleBook(response.data));
+    const duplicate = (ruleBook: RuleBook) => create({
+        name: `${ruleBook.name} (copy)`,
+        usedForAcquisitions: ruleBook.usedForAcquisitions,
+        ledgerRefs: [...ruleBook.ledgerRefs],
+        script: ruleBook.script,
+    });
+
+    const remove = (ruleBookId: string) => ruleBookApi.deleteRuleBook(ruleBookId).then(() => {
+        ruleBooks.value = ruleBooks.value.filter(rb => rb.ruleBookId !== ruleBookId);
+    });
 
     const refresh = () => ruleBookApi.findAllRuleBooks().then(response => ruleBooks.value = response.data);
 
     refresh();
 
-    return {ruleBooks, findById, create, update, refresh};
+    return {ruleBooks, findById, create, update, duplicate, remove, refresh};
 })
 
 export const findCharacterRuleBookByCharacterId = (characterId: number): Promise<CharacterRuleBookResponse> => characterRuleBookApi.findCharacterRuleBookByCharacterId(characterId)