diff --git a/.changeset/document-card-filters.md b/.changeset/document-card-filters.md
new file mode 100644
index 0000000..f68d9d9
--- /dev/null
+++ b/.changeset/document-card-filters.md
@@ -0,0 +1,7 @@
+---
+"pdfmonkey": minor
+---
+
+Adding the `search` filter to `documentCards.list()` (exact document ID or partial filename) and letting `status` take several statuses. Query values now accept arrays, sent as `key[]=a&key[]=b`. Documenting the accepted `folders` and `sort` values on `documentTemplates.list()`.
+
+Fixing `workspaceCards.update()` to send `PUT` instead of `PATCH`, matching the API and the other update endpoints. Removing the `'error'` value from `DocumentStatus` (and the `document.error` webhook payload status): the API never returns it.
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 468f6eb..9630b93 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,16 @@
 # pdfmonkey
 
+## Unreleased
+
+### Minor Changes
+
+- Adding the `search` filter to `documentCards.list()` (exact document ID or partial filename) and letting `status` take several statuses. Query values now accept arrays, sent as `key[]=a&key[]=b`. Documenting the accepted `folders` and `sort` values on `documentTemplates.list()`.
+
+### Patch Changes
+
+- Fixing `workspaceCards.update()` to send `PUT` instead of `PATCH`, matching the API and the other update endpoints. Removing the `'error'` value from `DocumentStatus` (and the `document.error` webhook payload status): the API never returns it.
+- ad9d7cd: Fixing `documents.waitForGeneration()` so its `timeout` is a true total budget: in-flight polls and their retries are now aborted when it expires, instead of resolving with a late success or reporting the timeout only after a slow response came back.
+
 ## 1.3.0
 
 ### Minor Changes
diff --git a/README.md b/README.md
index 8b7681d..6b41cff 100644
--- a/README.md
+++ b/README.md
@@ -126,7 +126,7 @@ Documents and document cards share a `DocumentStatus` type:
 
 ```ts
 import type { DocumentStatus } from 'pdfmonkey';
-// 'draft' | 'pending' | 'generating' | 'success' | 'failure' | 'error'
+// 'draft' | 'pending' | 'generating' | 'success' | 'failure'
 ```
 
 ### Document Templates
@@ -164,6 +164,9 @@ All list methods return a `Page<T>` with built-in navigation:
 ```ts
 const page = await client.documentCards.list({ document_template_id: 'tpl_xxx' });
 
+// Filter by filename (or exact document ID) and any of several statuses
+const inProgress = await client.documentCards.list({ search: 'invoice', status: ['pending', 'generating'] });
+
 console.log(page.data);        // items on this page
 console.log(page.currentPage); // 1
 console.log(page.totalPages);  // 5
diff --git a/src/__tests__/api.integration.test.ts b/src/__tests__/api.integration.test.ts
index d55bb0f..f7b010d 100644
--- a/src/__tests__/api.integration.test.ts
+++ b/src/__tests__/api.integration.test.ts
@@ -1,5 +1,6 @@
 import { afterAll, beforeAll, describe, expect, it } from 'vitest';
 import { PDFMonkey } from '../client.js';
+import type { DocumentStatus } from '../resources/documents.js';
 
 // Hits the live API with PDFMONKEY_API_KEY. Run with `pnpm test:integration`.
 // Every resource created here is prefixed and deleted in afterAll.
@@ -210,6 +211,13 @@ describe.runIf(enabled)('live API', () => {
       expect(page.data.map((c) => c.id)).toContain(documentId);
     });
 
+    it('documentCards.list by search and statuses', async () => {
+      const list = (status: DocumentStatus[]) =>
+        client.documentCards.list({ workspace_id: workspaceId, search: prefix, status });
+      expect((await list(['success', 'failure'])).data.map((c) => c.id)).toContain(documentId);
+      expect((await list(['draft'])).data.map((c) => c.id)).not.toContain(documentId);
+    });
+
     it('documents.generateSync', async () => {
       const card = await client.documents.generateSync({
         document_template_id: templateId,
diff --git a/src/__tests__/client.test.ts b/src/__tests__/client.test.ts
index b7d1749..8dd283a 100644
--- a/src/__tests__/client.test.ts
+++ b/src/__tests__/client.test.ts
@@ -170,6 +170,19 @@ describe('PDFMonkey Client', () => {
       expect(parsed.searchParams.get('page[number]')).toBe('2');
       expect(parsed.searchParams.get('status')).toBe('success');
     });
+
+    it('expands array query values as repeated key[] parameters', async () => {
+      const fetch = mockFetch(200, { data: [] });
+      const client = new PDFMonkey({ apiKey: 'sk_test', fetch });
+
+      await client.get('/documents', { query: { ids: ['a', 1, true], empty: [] } });
+
+      const [url] = (fetch as ReturnType<typeof vi.fn>).mock.calls[0] as [string];
+      const parsed = new URL(url);
+      expect(parsed.searchParams.getAll('ids[]')).toEqual(['a', '1', 'true']);
+      expect(parsed.searchParams.has('ids')).toBe(false);
+      expect(parsed.searchParams.has('empty[]')).toBe(false);
+    });
   });
 
   describe('error handling', () => {
diff --git a/src/__tests__/generation.test.ts b/src/__tests__/generation.test.ts
index 4aa460d..c398775 100644
--- a/src/__tests__/generation.test.ts
+++ b/src/__tests__/generation.test.ts
@@ -106,11 +106,11 @@ describe('waitForGeneration', () => {
     ).rejects.toThrow('Template error');
   });
 
-  it('throws on error status', async () => {
+  it('throws a generic message on failure without a cause', async () => {
     const { client } = createClient([
       {
         status: 200,
-        body: { document: { ...docFixture, status: 'error', failure_cause: null } },
+        body: { document: { ...docFixture, status: 'failure', failure_cause: null } },
       },
     ]);
 
diff --git a/src/__tests__/resources.test.ts b/src/__tests__/resources.test.ts
index 75553de..3e943df 100644
--- a/src/__tests__/resources.test.ts
+++ b/src/__tests__/resources.test.ts
@@ -360,6 +360,43 @@ describe('DocumentCards', () => {
     expect(parsed.searchParams.get('q[updated_since]')).toBe('1700000000');
   });
 
+  it('lists document cards matching a search and any of several statuses', async () => {
+    const { client, fetch } = createClient([
+      {
+        status: 200,
+        body: {
+          document_cards: [],
+          meta: { current_page: 1, total_pages: 1, next_page: null, prev_page: null },
+        },
+      },
+    ]);
+
+    await client.documentCards.list({ search: 'invoice', status: ['success', 'failure'] });
+
+    const parsed = new URL(fetch.mock.calls[0]?.[0] as string);
+    expect(parsed.searchParams.get('q[search]')).toBe('invoice');
+    expect(parsed.searchParams.getAll('q[status][]')).toEqual(['success', 'failure']);
+    expect(parsed.searchParams.has('q[status]')).toBe(false);
+  });
+
+  it('treats an empty status array as no status filter', async () => {
+    const { client, fetch } = createClient([
+      {
+        status: 200,
+        body: {
+          document_cards: [],
+          meta: { current_page: 1, total_pages: 1, next_page: null, prev_page: null },
+        },
+      },
+    ]);
+
+    await client.documentCards.list({ status: [] });
+
+    const parsed = new URL(fetch.mock.calls[0]?.[0] as string);
+    expect(parsed.searchParams.has('q[status][]')).toBe(false);
+    expect(parsed.searchParams.has('q[status]')).toBe(false);
+  });
+
   it('lists document cards without params (empty query)', async () => {
     const { client, fetch } = createClient([
       {
@@ -656,7 +693,7 @@ describe('WorkspaceCards', () => {
     expect(new URL(fetch.mock.calls[0]?.[0] as string).searchParams.get('page')).toBe('all');
   });
 
-  it('updates a workspace card with PATCH', async () => {
+  it('updates a workspace card with PUT', async () => {
     const { client, fetch } = createClient([
       { status: 200, body: { workspace_card: { id: 'ws_1', identifier: 'renamed' } } },
     ]);
@@ -666,7 +703,7 @@ describe('WorkspaceCards', () => {
     expect(card.identifier).toBe('renamed');
     const [url, init] = fetch.mock.calls[0] as [string, RequestInit];
     expect(url).toContain('/workspace_cards/ws_1');
-    expect(init.method).toBe('PATCH');
+    expect(init.method).toBe('PUT');
     expect(JSON.parse(init.body as string)).toEqual({ workspace_card: { identifier: 'renamed' } });
   });
 });
diff --git a/src/client.ts b/src/client.ts
index 0025656..515ed44 100644
--- a/src/client.ts
+++ b/src/client.ts
@@ -75,7 +75,13 @@ export interface Logger {
   error(message: string, data?: Record<string, unknown>): void;
 }
 
-export type QueryValue = string | number | boolean | null | undefined;
+export type QueryValue =
+  | string
+  | number
+  | boolean
+  | null
+  | undefined
+  | readonly (string | number | boolean)[];
 
 export interface RequestOptions {
   body?: Record<string, unknown>;
@@ -385,7 +391,10 @@ function buildURL(baseURL: string, path: string, query?: Record<string, QueryVal
   const url = new URL(`${baseURL}${normalizedPath}`);
   if (query) {
     for (const [key, value] of Object.entries(query)) {
-      if (value !== undefined && value !== null) {
+      if (Array.isArray(value)) {
+        // Rails array convention: q[status][]=a&q[status][]=b
+        for (const item of value) url.searchParams.append(`${key}[]`, String(item));
+      } else if (value !== undefined && value !== null) {
         url.searchParams.set(key, String(value));
       }
     }
diff --git a/src/resources/document-cards.ts b/src/resources/document-cards.ts
index 24bb320..fdf98f0 100644
--- a/src/resources/document-cards.ts
+++ b/src/resources/document-cards.ts
@@ -25,7 +25,10 @@ export interface DocumentCard {
 export interface DocumentCardListParams {
   page?: number;
   document_template_id?: string;
-  status?: DocumentStatus;
+  /** A document ID matches exactly; any other text matches part of the filename (case-sensitive). */
+  search?: string;
+  /** One status, or several to match any of them. An empty array applies no status filter. */
+  status?: DocumentStatus | DocumentStatus[];
   workspace_id?: string;
   updated_since?: number;
 }
@@ -46,6 +49,7 @@ export class DocumentCards extends APIResource {
     const query = buildListQuery(
       {
         document_template_id: params?.document_template_id,
+        search: params?.search,
         status: params?.status,
         workspace_id: params?.workspace_id,
         updated_since: params?.updated_since,
diff --git a/src/resources/document-templates.ts b/src/resources/document-templates.ts
index d5a339a..057f279 100644
--- a/src/resources/document-templates.ts
+++ b/src/resources/document-templates.ts
@@ -90,7 +90,12 @@ export interface DocumentTemplateUpdateParams {
 export interface DocumentTemplateListParams {
   page?: number;
   workspace_id?: string;
+  /**
+   * `'all'` (default), `'none'` for templates outside any folder,
+   * or a comma-separated list of folder IDs.
+   */
   folders?: string;
+  /** Attribute to sort by, prefixed with `-` for descending (e.g. `'identifier'`, `'-updated_at'`). */
   sort?: string;
 }
 
diff --git a/src/resources/documents.ts b/src/resources/documents.ts
index 1f4150c..507e95f 100644
--- a/src/resources/documents.ts
+++ b/src/resources/documents.ts
@@ -5,7 +5,7 @@ import type { DocumentCard } from './document-cards.js';
 
 // ── Types ──────────────────────────────────────────────────────────────────
 
-export type DocumentStatus = 'draft' | 'pending' | 'generating' | 'success' | 'failure' | 'error';
+export type DocumentStatus = 'draft' | 'pending' | 'generating' | 'success' | 'failure';
 
 export interface Document {
   readonly id: string;
@@ -299,7 +299,7 @@ export class Documents extends APIResource {
           return doc;
         }
 
-        if (doc.status === 'failure' || doc.status === 'error') {
+        if (doc.status === 'failure') {
           throw new PDFMonkeyError(
             `Document generation failed: ${doc.failure_cause ?? 'Unknown error'}`,
           );
diff --git a/src/resources/workspace-cards.ts b/src/resources/workspace-cards.ts
index 223dedc..606450d 100644
--- a/src/resources/workspace-cards.ts
+++ b/src/resources/workspace-cards.ts
@@ -46,13 +46,13 @@ export class WorkspaceCards extends APIResource {
     return fetchAll<WorkspaceCard>(this._client, '/workspace_cards', 'workspace_cards', options);
   }
 
-  /** Update a workspace by ID. Uses PATCH. */
+  /** Update a workspace by ID. Uses PUT. */
   async update(
     id: string,
     params: WorkspaceCardUpdateParams,
     options?: ResourceRequestOptions,
   ): Promise<WorkspaceCard> {
-    const response = await this._client.patch<WorkspaceCardResponse>(
+    const response = await this._client.put<WorkspaceCardResponse>(
       `/workspace_cards/${encodeURIComponent(id)}`,
       { ...options, body: { workspace_card: params } },
     );
diff --git a/src/webhooks.ts b/src/webhooks.ts
index fb58e6d..a7c043c 100644
--- a/src/webhooks.ts
+++ b/src/webhooks.ts
@@ -27,7 +27,7 @@ export interface DocumentDoneEventData {
 /** Payload shape for a `document.error` webhook event. */
 export interface DocumentErrorEventData {
   readonly id: string;
-  readonly status: 'failure' | 'error';
+  readonly status: 'failure';
   readonly failure_cause: string | null;
   readonly app_id?: string;
   readonly document_template_id?: string;