Clean up old stuff & fix ui errors

AGENTS.md

@@ -12,6 +12,10 @@
 - `packages/backend/convex`: self-hosted Convex functions, schema, and auth.
 - `packages/ui`: shared shadcn-based UI components.
 - `tools`: shared ESLint, Prettier, Tailwind, TypeScript, and Vitest config.
+- Threads are the canonical user-facing workspace route. Normal navigation
+  should open `/threads/[threadId]`; legacy job URLs under
+  `/spoons/[spoonId]/agent/[jobId]` are compatibility routes for jobs that do
+  not have a thread yet.
 - Local development uses host-run apps, local Convex on ports 3210/3211, local
   Postgres on port 5432 for Convex storage, and the Convex dashboard on port 6791.
   Agent jobs are opt-in; build `docker/agent-job.Dockerfile` as

README.md

@@ -111,6 +111,12 @@ Common thread sources:
 Threads hold messages, status, outcomes, related sync runs, related jobs,
 workspace links, draft PR links, and ignored upstream decisions.
 
+Opening a thread opens its workspace when a run exists. The workspace is the
+primary surface for that thread: agent messages, tool activity, file edits,
+manual edits, diffs, commands, and draft PR actions all happen there. Legacy
+job URLs under `/spoons/[spoonId]/agent/[jobId]` are kept for compatibility,
+but normal navigation targets `/threads/[threadId]`.
+
 </details>
 
 <details open>
@@ -144,6 +150,7 @@ Workspace capabilities:
 - browse repository files
 - edit files in a browser editor
 - use optional Vim keybindings
+- resize the agent thread panel on desktop
 - inspect diffs
 - send thread messages to the agent
 - run configured commands

apps/agent-worker/src/agent-events.ts

@@ -70,6 +70,62 @@ const textFromPart = (part: Record<string, unknown>) => {
   return typeof text === 'string' ? text : '';
 };
 
+const commandString = (value: unknown) => {
+  if (Array.isArray(value)) return value.map((part) => stringify(part)).join(' ');
+  return stringify(value);
+};
+
+const toolNameFromRecord = (record: Record<string, unknown> | null) =>
+  stringify(
+    record?.tool ??
+      record?.tool_name ??
+      record?.toolName ??
+      record?.name ??
+      record?.function ??
+      record?.type ??
+      record?.command ??
+      'tool',
+  );
+
+const toolInputFromRecord = (record: Record<string, unknown> | null) =>
+  commandString(
+    record?.input ??
+      record?.arguments ??
+      record?.args ??
+      record?.params ??
+      record?.command ??
+      record?.cmd,
+  );
+
+const toolOutputFromRecord = (
+  record: Record<string, unknown> | null,
+  fallback?: unknown,
+) =>
+  stringify(
+    record?.output ??
+      record?.result ??
+      record?.content ??
+      record?.text ??
+      fallback,
+  );
+
+const recordLooksLikeTool = (
+  type: string,
+  record: Record<string, unknown> | null,
+) => {
+  const recordType = stringify(record?.type).toLowerCase();
+  const lowerType = type.toLowerCase();
+  return (
+    lowerType.includes('tool') ||
+    lowerType.includes('function_call') ||
+    recordType.includes('tool') ||
+    recordType.includes('function_call') ||
+    recordType.includes('local_shell_call') ||
+    recordType.includes('mcp') ||
+    Boolean(record?.tool ?? record?.tool_name ?? record?.name)
+  );
+};
+
 export const normalizeCodexJsonLine = (
   line: string,
 ): NormalizedAgentEvent[] => {
@@ -95,6 +151,37 @@ export const normalizeCodexJsonLine = (
   const item = asRecord(event.item);
   const data = asRecord(event.data);
   const part = asRecord(event.part);
+  const itemType = item ? stringify(item.type) : '';
+  const lowerType = type.toLowerCase();
+  const lowerItemType = itemType.toLowerCase();
+  if (
+    item &&
+    recordLooksLikeTool(type, item) &&
+    (lowerType.includes('started') ||
+      lowerType.includes('in_progress') ||
+      lowerType.includes('created'))
+  ) {
+    events.push({
+      kind: 'tool_started',
+      name: toolNameFromRecord(item),
+      input: toolInputFromRecord(item),
+      externalMessageId: stringify(item.id ?? event.id),
+    });
+  }
+  if (
+    item &&
+    recordLooksLikeTool(type, item) &&
+    (lowerType.includes('completed') ||
+      lowerType.includes('done') ||
+      lowerType.includes('finished'))
+  ) {
+    events.push({
+      kind: 'tool_completed',
+      name: toolNameFromRecord(item),
+      output: toolOutputFromRecord(item, event.output ?? data?.output),
+      externalMessageId: stringify(item.id ?? event.id),
+    });
+  }
   const delta = event.delta ?? data?.delta;
   if (typeof delta === 'string') {
     events.push({ kind: 'assistant_delta', content: delta });
@@ -107,19 +194,43 @@ export const normalizeCodexJsonLine = (
     text &&
     (type.includes('message') ||
       type.includes('response.output_text') ||
-      type.includes('agent_message'))
+      type.includes('agent_message') ||
+      itemType.includes('message') ||
+      itemType.includes('agent_message'))
   ) {
     events.push({ kind: 'assistant_delta', content: text });
   }
-  const command = event.command ?? data?.command;
+  const error = event.error ?? item?.error;
+  if (error || itemType === 'error') {
+    events.push({
+      kind: 'error',
+      message: stringify(error ?? item?.message ?? event.message),
+    });
+  }
+  const command =
+    event.command ??
+    data?.command ??
+    (lowerItemType.includes('shell') ? item?.command : undefined);
   if (typeof command === 'string') {
     events.push({
       kind: 'command_executed',
       command,
       output: stringify(event.output ?? data?.output),
     });
+  } else if (Array.isArray(command)) {
+    events.push({
+      kind: 'command_executed',
+      command: command.map((part) => stringify(part)).join(' '),
+      output: stringify(event.output ?? data?.output ?? item?.output),
+    });
   }
-  const file = event.file ?? event.path ?? data?.file ?? data?.path;
+  const file =
+    event.file ??
+    event.path ??
+    data?.file ??
+    data?.path ??
+    item?.file ??
+    item?.path;
   if (typeof file === 'string' && type.includes('file')) {
     events.push({ kind: 'file_edited', path: file });
   }
@@ -129,7 +240,16 @@ export const normalizeCodexJsonLine = (
       message: stringify(event.message ?? event.error ?? data),
     });
   }
-  if (type.includes('completed') || type.includes('turn.done')) {
+  if (
+    type.includes('completed') &&
+    itemType !== 'error' &&
+    !itemType.includes('message') &&
+    !itemType.includes('agent_message') &&
+    !recordLooksLikeTool(type, item)
+  ) {
+    events.push({ kind: 'assistant_completed' });
+  }
+  if (type.includes('turn.done')) {
     events.push({ kind: 'assistant_completed' });
   }
   if (events.length === 0) {
@@ -188,6 +308,14 @@ export const normalizeOpenCodeEvent = (
       externalMessageId: stringify(properties.messageID),
     });
   }
+  if (type.includes('tool.updated') || type.includes('tool.output')) {
+    events.push({
+      kind: 'tool_completed',
+      name: stringify(properties.tool ?? properties.name ?? 'tool'),
+      output: stringify(properties.output ?? properties.result ?? properties),
+      externalMessageId: stringify(properties.messageID),
+    });
+  }
   if (type === 'file.edited') {
     const file = properties.file;
     if (typeof file === 'string') events.push({ kind: 'file_edited', path: file });

apps/agent-worker/src/codex-runtime.ts

@@ -0,0 +1,39 @@
+import { chmod, mkdir, stat } from 'node:fs/promises';
+import path from 'node:path';
+
+export const codexContainerWorkspace = '/workspace';
+export const codexContainerRepo = '/workspace/repo';
+
+export const prepareCodexWorkspaceFiles = async (args: {
+  workdir: string;
+  repoDir: string;
+}) => {
+  await mkdir(path.join(args.workdir, '.codex'), { recursive: true });
+  await mkdir(path.join(args.workdir, '.config'), { recursive: true });
+  await mkdir(path.join(args.workdir, '.local', 'share'), { recursive: true });
+
+  await Promise.all([
+    chmod(args.workdir, 0o755),
+    chmod(args.repoDir, 0o755),
+    chmod(path.join(args.workdir, '.codex'), 0o755),
+    chmod(path.join(args.workdir, '.config'), 0o755),
+    chmod(path.join(args.workdir, '.local'), 0o755),
+    chmod(path.join(args.workdir, '.local', 'share'), 0o755),
+  ]);
+
+  const projectCodexDir = path.join(args.repoDir, '.codex');
+  const projectConfig = path.join(projectCodexDir, 'config.toml');
+  try {
+    if ((await stat(projectCodexDir)).isDirectory()) {
+      await chmod(projectCodexDir, 0o755);
+    }
+    if ((await stat(projectConfig)).isFile()) {
+      await chmod(projectConfig, 0o644);
+    }
+  } catch (error) {
+    const code = error && typeof error === 'object' ? 'code' in error : false;
+    if (!code || (error as { code?: string }).code !== 'ENOENT') {
+      throw error;
+    }
+  }
+};

apps/agent-worker/src/env.ts

@@ -23,6 +23,7 @@ export const env = {
     process.env.SPOON_AGENT_CONTAINER_RUNTIME?.trim() ??
     process.env.SPOON_CONTAINER_RUNTIME?.trim() ??
     'docker',
+  containerVolumeOptions: process.env.SPOON_AGENT_CONTAINER_VOLUME_OPTIONS?.trim(),
   containerAccess:
     process.env.SPOON_AGENT_CONTAINER_ACCESS?.trim() === 'host_port'
       ? 'host_port'

apps/agent-worker/src/runtime/docker.ts

@@ -17,6 +17,15 @@ const networkArgs = () => (env.network ? ['--network', env.network] : []);
 
 const containerRuntime = () => env.containerRuntime;
 
+export const jobWorkspaceVolumeSpec = (workdir: string) => {
+  const volumeOptions =
+    env.containerVolumeOptions ??
+    (containerRuntime().endsWith('podman') ? 'Z' : undefined);
+  return volumeOptions
+    ? `${workdir}:/workspace:${volumeOptions}`
+    : `${workdir}:/workspace`;
+};
+
 export const runInJobContainer = async (args: {
   workdir: string;
   command: string[];
@@ -36,7 +45,7 @@ export const runInJobContainer = async (args: {
       ...networkArgs(),
       ...environmentArgs(args.environment),
       '-v',
-      `${args.workdir}:/workspace`,
+      jobWorkspaceVolumeSpec(args.workdir),
       '-w',
       '/workspace/repo',
       env.jobImage,
@@ -87,7 +96,7 @@ export const startWorkspaceContainer = async (args: {
         : []),
       ...environmentArgs(args.environment),
       '-v',
-      `${args.workdir}:/workspace`,
+      jobWorkspaceVolumeSpec(args.workdir),
       '-w',
       '/workspace/repo',
       env.jobImage,
@@ -168,7 +177,7 @@ export const streamInJobContainer = async (args: {
       ...networkArgs(),
       ...environmentArgs(args.environment),
       '-v',
-      `${args.workdir}:/workspace`,
+      jobWorkspaceVolumeSpec(args.workdir),
       '-w',
       '/workspace/repo',
       env.jobImage,

apps/agent-worker/src/worker.ts

@@ -16,6 +16,11 @@ import { api } from '@spoon/backend/convex/_generated/api.js';
 
 import type { NormalizedAgentEvent } from './agent-events';
 import { normalizeCodexJsonLine } from './agent-events';
+import {
+  codexContainerRepo,
+  codexContainerWorkspace,
+  prepareCodexWorkspaceFiles,
+} from './codex-runtime';
 import { env } from './env';
 import {
   cloneRepository,
@@ -118,7 +123,6 @@ const sleep = (ms: number) => new Promise((resolve) => setTimeout(resolve, ms));
 
 const client = new ConvexHttpClient(env.convexUrl);
 const activeWorkspaces = new Map<string, ActiveWorkspace>();
-const jobContainerWorkspace = '/workspace';
 
 const appendEvent = async (
   jobId: Id<'agentJobs'>,
@@ -442,6 +446,10 @@ const prepareCodexAuth = async (workspace: ActiveWorkspace) => {
   if (!secret) {
     throw new Error('Codex auth profile is missing auth.json contents.');
   }
+  await prepareCodexWorkspaceFiles({
+    workdir: workspace.workdir,
+    repoDir: workspace.repoDir,
+  });
   const codexAuthPath = path.join(workspace.workdir, '.codex', 'auth.json');
   await writeJsonFile(codexAuthPath, secret);
 
@@ -688,14 +696,18 @@ const runCodexTurn = async (args: {
     ? commandToShell(
         `codex exec resume --json --model ${quoteShell(
           codexModel(workspace.claim),
-        )} ${quoteShell(workspace.codexSessionId)} ${quoteShell(prompt)}`,
+        )} --dangerously-bypass-approvals-and-sandbox ${quoteShell(
+          workspace.codexSessionId,
+        )} ${quoteShell(prompt)}`,
       )
     : commandToShell(
         `codex exec --json --model ${quoteShell(
           codexModel(workspace.claim),
-        )} --sandbox workspace-write ${quoteShell(prompt)}`,
+        )} --dangerously-bypass-approvals-and-sandbox --cd ${quoteShell(
+          codexContainerRepo,
+        )} ${quoteShell(prompt)}`,
       );
-  const aiEnv = providerEnvironment(workspace.claim, jobContainerWorkspace);
+  const aiEnv = providerEnvironment(workspace.claim, codexContainerWorkspace);
   const secretEnv = Object.fromEntries(
     workspace.claim.secrets.map((secret) => [secret.name, secret.value]),
   );
@@ -958,6 +970,89 @@ const fileChangedType = async (repoDir: string, filePath: string) => {
   return 'modified' as const;
 };
 
+const sensitiveWorkspacePath = (filePath: string) => {
+  const parts = filePath.split('/');
+  if (parts.includes('.git') || parts.includes('.codex')) return true;
+  const name = parts.at(-1) ?? filePath;
+  if (name === '.env') return true;
+  if (name.startsWith('.env.') && name !== '.env.example') return true;
+  return false;
+};
+
+const changedFilesFromStatus = async (
+  repoDir: string,
+  redact: (value: string) => string,
+) => {
+  const status = await run('git', ['status', '--short'], {
+    cwd: repoDir,
+    redact,
+    timeoutMs: 60_000,
+  });
+  if (status.exitCode !== 0) return [];
+  return status.output
+    .split('\n')
+    .map((line) => {
+      if (line.length < 4) return null;
+      const code = line.slice(0, 2);
+      const rawPath = line.slice(3).trim();
+      if (!rawPath) return null;
+      const filePath = rawPath.includes(' -> ')
+        ? rawPath.split(' -> ').at(-1)?.trim()
+        : rawPath;
+      if (!filePath || sensitiveWorkspacePath(filePath)) return null;
+      const changeType = code.includes('D')
+        ? 'deleted'
+        : code.includes('R')
+          ? 'renamed'
+          : code.includes('A') || code.includes('?')
+            ? 'added'
+            : 'modified';
+      return {
+        path: filePath,
+        changeType,
+      };
+    })
+    .filter(
+      (
+        value,
+      ): value is {
+        path: string;
+        changeType: 'added' | 'modified' | 'deleted' | 'renamed';
+      } => Boolean(value),
+    );
+};
+
+const recordChangedFiles = async (
+  workspace: ActiveWorkspace,
+  source: 'agent' | 'command',
+  diff: string,
+) => {
+  const changes = await changedFilesFromStatus(
+    workspace.repoDir,
+    workspace.redact,
+  );
+  for (const change of changes) {
+    await recordWorkspaceChange({
+      jobId: workspace.claim.job._id,
+      path: change.path,
+      source,
+      changeType: change.changeType,
+      diff: truncate(diff, 50_000),
+    });
+  }
+  if (changes.length > 0) {
+    await appendEvent(
+      workspace.claim.job._id,
+      'info',
+      'edit',
+      `Workspace has ${changes.length} changed file${
+        changes.length === 1 ? '' : 's'
+      }.`,
+      JSON.stringify(changes),
+    );
+  }
+};
+
 const materializeEnvFile = async (workspace: ActiveWorkspace) => {
   const { claim, repoDir } = workspace;
   if (!claim.job.materializeEnvFile || !claim.job.envFilePath) return;
@@ -1085,6 +1180,9 @@ const runClaim = async (claim: Claim) => {
   ].filter(Boolean);
   const redact = createRedactor(secretValues);
   try {
+    if ((claim.job.runtime ?? 'opencode') !== 'opencode') {
+      throw new Error('Legacy OpenAI direct jobs are no longer supported.');
+    }
     await updateStatus(jobId, 'preparing');
     await appendEvent(jobId, 'info', 'clone', 'Creating installation token.');
     if (!claim.github.installationId) {
@@ -1251,16 +1349,11 @@ export const runWorkspaceCommand = async (jobId: string, command: string) => {
     redact: workspace.redact,
   });
   await updateStatus(workspace.claim.job._id, 'running');
-  await recordWorkspaceChange({
-    jobId: workspace.claim.job._id,
-    path: '.',
-    source: 'command',
-    changeType: 'modified',
-    diff: truncate(
+  await recordChangedFiles(
+    workspace,
+    'command',
     (await getWorktreeDiff(workspace.repoDir, workspace.redact)).output,
-      50_000,
-    ),
-  });
+  );
   return { success: true };
 };
 
@@ -1347,9 +1440,6 @@ export const sendWorkspaceMessage = async (jobId: string, prompt: string) => {
   await appendEvent(claim.job._id, 'info', 'plan', 'Sending message to agent.');
 
   try {
-    if ((claim.job.runtime ?? 'opencode') !== 'opencode') {
-      throw new Error('Legacy OpenAI direct jobs are no longer supported.');
-    }
     workspace.agentTurnActive = true;
     const assistantMessageId = await appendMessage({
       jobId: claim.job._id,
@@ -1430,13 +1520,7 @@ export const sendWorkspaceMessage = async (jobId: string, prompt: string) => {
       content: truncate(diff.output, 200_000),
       contentType: 'text/x-diff',
     });
-    await recordWorkspaceChange({
-      jobId: claim.job._id,
-      path: '.',
-      source: 'agent',
-      changeType: 'modified',
-      diff: truncate(diff.output, 50_000),
-    });
+    await recordChangedFiles(workspace, 'agent', diff.output);
 	  } catch (error) {
 	    workspace.agentTurnActive = false;
 	    workspace.resolveTurn?.();

apps/agent-worker/tests/unit/agent-events.test.ts

@@ -51,6 +51,91 @@ describe('agent event normalization', () => {
     ).toContainEqual({ kind: 'file_edited', path: 'src/app.ts' });
   });
 
+  test('normalizes current Codex item events', () => {
+    expect(
+      normalizeCodexJsonLine(
+        JSON.stringify({
+          type: 'item.completed',
+          item: {
+            id: 'item-1',
+            type: 'agent_message',
+            text: 'I updated the auth provider.',
+          },
+        }),
+      ),
+    ).toContainEqual({
+      kind: 'assistant_delta',
+      content: 'I updated the auth provider.',
+    });
+
+    expect(
+      normalizeCodexJsonLine(
+        JSON.stringify({
+          type: 'item.completed',
+          item: {
+            id: 'item-2',
+            type: 'error',
+            message: 'sandbox failed',
+          },
+        }),
+      ),
+    ).toContainEqual({
+      kind: 'error',
+      message: 'sandbox failed',
+    });
+
+    expect(
+      normalizeCodexJsonLine(
+        JSON.stringify({
+          type: 'turn.failed',
+          error: { message: 'request failed' },
+        }),
+      ),
+    ).toContainEqual({
+      kind: 'error',
+      message: '{\n  "message": "request failed"\n}',
+    });
+  });
+
+  test('normalizes Codex tool item lifecycle events', () => {
+    expect(
+      normalizeCodexJsonLine(
+        JSON.stringify({
+          type: 'item.started',
+          item: {
+            id: 'tool-1',
+            type: 'local_shell_call',
+            command: ['bash', '-lc', 'rg Authentik'],
+          },
+        }),
+      ),
+    ).toContainEqual({
+      kind: 'tool_started',
+      name: 'local_shell_call',
+      input: 'bash -lc rg Authentik',
+      externalMessageId: 'tool-1',
+    });
+
+    expect(
+      normalizeCodexJsonLine(
+        JSON.stringify({
+          type: 'item.completed',
+          item: {
+            id: 'tool-1',
+            type: 'local_shell_call',
+            command: ['bash', '-lc', 'rg Authentik'],
+            output: 'apps/web/auth.ts',
+          },
+        }),
+      ),
+    ).toContainEqual({
+      kind: 'tool_completed',
+      name: 'local_shell_call',
+      output: 'apps/web/auth.ts',
+      externalMessageId: 'tool-1',
+    });
+  });
+
   test('normalizes OpenCode assistant, tool, and permission events', () => {
     expect(
       normalizeOpenCodeEvent({
@@ -93,5 +178,21 @@ describe('agent event normalization', () => {
       body: 'Run bun test?',
       metadata: '{\n  "permissionID": "perm-1",\n  "message": "Run bun test?"\n}',
     });
+
+    expect(
+      normalizeOpenCodeEvent({
+        type: 'tool.output',
+        properties: {
+          tool: 'read',
+          output: 'apps/web/auth.ts',
+          messageID: 'message-2',
+        },
+      }),
+    ).toContainEqual({
+      kind: 'tool_completed',
+      name: 'read',
+      output: 'apps/web/auth.ts',
+      externalMessageId: 'message-2',
+    });
   });
 });

apps/agent-worker/tests/unit/codex-runtime.test.ts

@@ -0,0 +1,43 @@
+import { mkdir, mkdtemp, readFile, rm, stat, writeFile } from 'node:fs/promises';
+import os from 'node:os';
+import path from 'node:path';
+import { afterEach, describe, expect, test } from 'vitest';
+
+import { prepareCodexWorkspaceFiles } from '../../src/codex-runtime';
+
+const tempDirs: string[] = [];
+
+const mode = async (filePath: string) => (await stat(filePath)).mode & 0o777;
+
+describe('Codex runtime preparation', () => {
+  afterEach(async () => {
+    await Promise.all(
+      tempDirs.map((dir) => rm(dir, { force: true, recursive: true })),
+    );
+    tempDirs.length = 0;
+  });
+
+  test('prepares writable Codex directories and preserves project config contents', async () => {
+    const workdir = await mkdtemp(path.join(os.tmpdir(), 'spoon-codex-'));
+    tempDirs.push(workdir);
+    const repoDir = path.join(workdir, 'repo');
+    await mkdir(path.join(repoDir, '.codex'), { recursive: true });
+    const projectConfig = path.join(repoDir, '.codex', 'config.toml');
+    await writeFile(projectConfig, '[features]\ncodex_hooks = true\n');
+
+    await prepareCodexWorkspaceFiles({ workdir, repoDir });
+
+    await expect(readFile(projectConfig, 'utf8')).resolves.toBe(
+      '[features]\ncodex_hooks = true\n',
+    );
+    await expect(mode(workdir)).resolves.toBe(0o755);
+    await expect(mode(repoDir)).resolves.toBe(0o755);
+    await expect(mode(path.join(workdir, '.codex'))).resolves.toBe(0o755);
+    await expect(mode(path.join(workdir, '.config'))).resolves.toBe(0o755);
+    await expect(mode(path.join(workdir, '.local', 'share'))).resolves.toBe(
+      0o755,
+    );
+    await expect(mode(path.join(repoDir, '.codex'))).resolves.toBe(0o755);
+    await expect(mode(projectConfig)).resolves.toBe(0o644);
+  });
+});

apps/agent-worker/tests/unit/docker-runtime.test.ts

@@ -0,0 +1,46 @@
+import { afterEach, describe, expect, test, vi } from 'vitest';
+
+const loadVolumeSpec = async () => {
+  vi.resetModules();
+  process.env.SPOON_WORKER_TOKEN = 'test-worker-token';
+  process.env.GITHUB_APP_ID = '123';
+  process.env.GITHUB_APP_PRIVATE_KEY =
+    '-----BEGIN PRIVATE KEY-----\\ntest\\n-----END PRIVATE KEY-----';
+  return await import('../../src/runtime/docker');
+};
+
+describe('Docker runtime', () => {
+  afterEach(() => {
+    delete process.env.SPOON_AGENT_CONTAINER_RUNTIME;
+    delete process.env.SPOON_AGENT_CONTAINER_VOLUME_OPTIONS;
+    vi.resetModules();
+  });
+
+  test('adds SELinux relabel option for Podman workspace mounts by default', async () => {
+    process.env.SPOON_AGENT_CONTAINER_RUNTIME = 'podman';
+    const { jobWorkspaceVolumeSpec } = await loadVolumeSpec();
+
+    expect(jobWorkspaceVolumeSpec('/tmp/spoon-job')).toBe(
+      '/tmp/spoon-job:/workspace:Z',
+    );
+  });
+
+  test('does not add Podman volume options for Docker by default', async () => {
+    process.env.SPOON_AGENT_CONTAINER_RUNTIME = 'docker';
+    const { jobWorkspaceVolumeSpec } = await loadVolumeSpec();
+
+    expect(jobWorkspaceVolumeSpec('/tmp/spoon-job')).toBe(
+      '/tmp/spoon-job:/workspace',
+    );
+  });
+
+  test('allows explicit workspace mount options', async () => {
+    process.env.SPOON_AGENT_CONTAINER_RUNTIME = 'podman';
+    process.env.SPOON_AGENT_CONTAINER_VOLUME_OPTIONS = 'z';
+    const { jobWorkspaceVolumeSpec } = await loadVolumeSpec();
+
+    expect(jobWorkspaceVolumeSpec('/tmp/spoon-job')).toBe(
+      '/tmp/spoon-job:/workspace:z',
+    );
+  });
+});

apps/next/src/app/(app)/spoons/[spoonId]/agent/[jobId]/page.tsx

@@ -1,15 +1,33 @@
 'use client';
 
+import { useEffect } from 'react';
 import Link from 'next/link';
-import { useParams } from 'next/navigation';
+import { useParams, useRouter } from 'next/navigation';
 import { AgentWorkspaceShell } from '@/components/agent-workspace/agent-workspace-shell';
+import { useQuery } from 'convex/react';
 import { ArrowLeft } from 'lucide-react';
 
 import type { Id } from '@spoon/backend/convex/_generated/dataModel.js';
+import { api } from '@spoon/backend/convex/_generated/api.js';
 import { Button } from '@spoon/ui';
 
 const AgentWorkspacePage = () => {
+  const router = useRouter();
   const params = useParams<{ spoonId: string; jobId: string }>();
+  const jobId = params.jobId as Id<'agentJobs'>;
+  const job = useQuery(api.agentJobs.get, { jobId });
+
+  useEffect(() => {
+    if (job?.threadId) router.replace(`/threads/${job.threadId}`);
+  }, [job?.threadId, router]);
+
+  if (job?.threadId) {
+    return (
+      <main className='text-muted-foreground p-6'>
+        Opening thread workspace...
+      </main>
+    );
+  }
 
   return (
     <main className='space-y-4'>
@@ -19,7 +37,7 @@ const AgentWorkspacePage = () => {
           Back to Spoon
         </Link>
       </Button>
-      <AgentWorkspaceShell jobId={params.jobId as Id<'agentJobs'>} />
+      <AgentWorkspaceShell jobId={jobId} />
     </main>
   );
 };

apps/next/src/app/(app)/spoons/[spoonId]/page.tsx

@@ -2,8 +2,6 @@
 
 import Link from 'next/link';
 import { useParams } from 'next/navigation';
-import { AgentJobList } from '@/components/agents/agent-job-list';
-import { AgentRequestForm } from '@/components/agents/agent-request-form';
 import { SpoonActivityTimeline } from '@/components/spoons/spoon-activity-timeline';
 import { SpoonAgentSettingsForm } from '@/components/spoons/spoon-agent-settings-form';
 import { SpoonClonePanel } from '@/components/spoons/spoon-clone-panel';
@@ -13,6 +11,7 @@ import { SpoonMetrics } from '@/components/spoons/spoon-metrics';
 import { SpoonPrList } from '@/components/spoons/spoon-pr-list';
 import { SpoonSecretsForm } from '@/components/spoons/spoon-secrets-form';
 import { SpoonSettingsForm } from '@/components/spoons/spoon-settings-form';
+import { ThreadWorkspaceForm } from '@/components/threads/thread-workspace-form';
 import { useQuery } from 'convex/react';
 
 import type { Id } from '@spoon/backend/convex/_generated/dataModel.js';
@@ -243,7 +242,7 @@ const SpoonDetailPage = () => {
         </TabsContent>
 
         <TabsContent value='threads' className='space-y-4'>
-          <AgentRequestForm
+          <ThreadWorkspaceForm
             spoon={details.spoon}
             agentSettings={agentSettings}
           />
@@ -273,7 +272,6 @@ const SpoonDetailPage = () => {
               )}
             </CardContent>
           </Card>
-          <AgentJobList jobs={agentJobs} />
         </TabsContent>
 
         <TabsContent value='activity'>

apps/next/src/app/(app)/threads/[threadId]/page.tsx

@@ -2,9 +2,16 @@
 
 import { useState } from 'react';
 import Link from 'next/link';
-import { useParams } from 'next/navigation';
+import { useParams, useRouter } from 'next/navigation';
+import { AgentWorkspaceShell } from '@/components/agent-workspace/agent-workspace-shell';
 import { useMutation, useQuery } from 'convex/react';
-import { ArrowUpRight, CheckCircle2, Play, XCircle } from 'lucide-react';
+import {
+  ArrowUpRight,
+  CheckCircle2,
+  Play,
+  Trash2,
+  XCircle,
+} from 'lucide-react';
 import { toast } from 'sonner';
 
 import type { Id } from '@spoon/backend/convex/_generated/dataModel.js';
@@ -16,41 +23,45 @@ import {
   CardContent,
   CardHeader,
   CardTitle,
-  Textarea,
 } from '@spoon/ui';
 
 const ThreadDetailPage = () => {
+  const router = useRouter();
   const params = useParams<{ threadId: string }>();
   const threadId = params.threadId as Id<'threads'>;
   const details = useQuery(api.threads.get, { threadId });
-  const messages = useQuery(api.threads.listMessages, { threadId }) ?? [];
   const createJob = useMutation(api.agentJobs.createForThread);
   const markResolved = useMutation(api.threads.markResolved);
   const cancel = useMutation(api.threads.cancel);
-  const [sending, setSending] = useState(false);
+  const deleteThread = useMutation(api.threads.deleteThread);
   const [queueing, setQueueing] = useState(false);
+  const [deleting, setDeleting] = useState(false);
 
   if (details === undefined) {
     return <main className='text-muted-foreground p-6'>Loading thread...</main>;
   }
 
   const { thread, spoon, latestJob } = details;
+  if (latestJob && spoon) {
+    return (
+      <main className='space-y-4'>
+        <Button asChild variant='ghost' size='sm'>
+          <Link href={`/spoons/${spoon._id}`}>
+            <ArrowUpRight className='size-4 rotate-180' />
+            Back to Spoon
+          </Link>
+        </Button>
+        <AgentWorkspaceShell jobId={latestJob._id} />
+      </main>
+    );
+  }
+
   const terminalThread = [
     'resolved',
     'ignored',
     'failed',
     'cancelled',
   ].includes(thread.status);
-  const activeJob =
-    latestJob &&
-    [
-      'claimed',
-      'preparing',
-      'running',
-      'checks_running',
-      'changes_ready',
-    ].includes(latestJob.status) &&
-    ['active', 'idle'].includes(latestJob.workspaceStatus ?? '');
   const canQueueRun =
     spoon &&
     (!latestJob ||
@@ -67,40 +78,12 @@ const ThreadDetailPage = () => {
         ? ('maintenance_review' as const)
         : ('user_change' as const);
 
-  const submit = async (event: React.FormEvent<HTMLFormElement>) => {
-    event.preventDefault();
-    const form = new FormData(event.currentTarget);
-    const value = form.get('message');
-    const content = typeof value === 'string' ? value : '';
-    setSending(true);
-    try {
-      const response = await fetch(`/api/threads/${threadId}/message`, {
-        method: 'POST',
-        body: JSON.stringify({ content }),
-      });
-      if (!response.ok) {
-        const payload = (await response.json().catch(() => null)) as {
-          error?: string;
-          recoverable?: boolean;
-        } | null;
-        throw new Error(payload?.error ?? (await response.text()));
-      }
-      event.currentTarget.reset();
-      toast.success(activeJob ? 'Message sent to agent.' : 'Message added.');
-    } catch (error) {
-      console.error(error);
-      toast.error('Could not send message.');
-    } finally {
-      setSending(false);
-    }
-  };
-
   const startRun = async () => {
     setQueueing(true);
     try {
-      const jobId = await createJob({ threadId, jobType });
+      await createJob({ threadId, jobType });
       toast.success('Workspace run queued.');
-      window.location.href = `/spoons/${spoon?._id}/agent/${jobId}`;
+      router.replace(`/threads/${threadId}`);
     } catch (error) {
       console.error(error);
       toast.error('Could not queue workspace run.');
@@ -109,6 +92,29 @@ const ThreadDetailPage = () => {
     }
   };
 
+  const removeThread = async () => {
+    if (
+      !window.confirm(
+        'Delete this thread and any terminal workspace records attached to it? This cannot be undone.',
+      )
+    ) {
+      return;
+    }
+    setDeleting(true);
+    try {
+      await deleteThread({ threadId });
+      toast.success('Thread deleted.');
+      router.push('/threads');
+    } catch (error) {
+      console.error(error);
+      toast.error(
+        error instanceof Error ? error.message : 'Could not delete thread.',
+      );
+    } finally {
+      setDeleting(false);
+    }
+  };
+
   return (
     <main className='space-y-6'>
       <div className='flex flex-col justify-between gap-4 md:flex-row md:items-start'>
@@ -142,11 +148,7 @@ const ThreadDetailPage = () => {
         <div className='flex flex-wrap gap-2'>
           {latestJob ? (
             <Button variant='outline' asChild>
-              <Link
-                href={`/spoons/${latestJob.spoonId}/agent/${latestJob._id}`}
-              >
-                Open workspace
-              </Link>
+              <Link href={`/threads/${threadId}`}>Open workspace</Link>
             </Button>
           ) : null}
           {latestJob?.pullRequestUrl ? (
@@ -194,57 +196,38 @@ const ThreadDetailPage = () => {
               </Button>
             </>
           ) : null}
+          <Button
+            variant='destructive'
+            disabled={deleting}
+            onClick={() => void removeThread()}
+          >
+            <Trash2 className='size-4' />
+            {deleting ? 'Deleting...' : 'Delete'}
+          </Button>
         </div>
       </div>
 
       <div className='grid gap-6 xl:grid-cols-[1fr_320px]'>
         <Card className='shadow-none'>
           <CardHeader>
-            <CardTitle>Conversation</CardTitle>
+            <CardTitle>Workspace</CardTitle>
           </CardHeader>
-          <CardContent className='space-y-4'>
-            {messages.map((message) => (
-              <div
-                key={message._id}
-                className='border-border rounded-md border p-3'
-              >
-                <div className='mb-2 flex items-center justify-between gap-2'>
-                  <Badge variant='outline'>{message.role}</Badge>
-                  <span className='text-muted-foreground text-xs'>
-                    {new Date(message.createdAt).toLocaleString()}
-                  </span>
-                </div>
-                <p className='text-sm whitespace-pre-wrap'>{message.content}</p>
-              </div>
-            ))}
-            <form onSubmit={submit} className='space-y-3'>
-              <Textarea
-                name='message'
-                required
-                minLength={2}
-                placeholder={
-                  activeJob
-                    ? 'Send instructions to the active agent workspace.'
-                    : 'Add context or instructions for the next run.'
-                }
-                disabled={sending || terminalThread}
-              />
-              <div className='flex flex-wrap items-center gap-2'>
-                <Button type='submit' disabled={sending || terminalThread}>
-                  {sending
-                    ? 'Sending...'
-                    : activeJob
-                      ? 'Send to agent'
-                      : 'Add note'}
-                </Button>
-                {!activeJob ? (
-                  <p className='text-muted-foreground text-xs'>
-                    No active workspace is attached, so messages are saved as
-                    thread notes until a run is started.
+          <CardContent className='space-y-4 text-sm'>
+            <p className='text-muted-foreground'>
+              Threads open into a full workspace where you can review agent
+              activity, edit files, inspect diffs, and reply to the agent.
             </p>
-                ) : null}
-              </div>
-            </form>
+            {canQueueRun ? (
+              <Button disabled={queueing} onClick={() => void startRun()}>
+                <Play className='size-4' />
+                {latestJob ? 'Create new workspace run' : 'Start workspace run'}
+              </Button>
+            ) : (
+              <p className='text-muted-foreground'>
+                This thread does not currently have a workspace that can be
+                opened.
+              </p>
+            )}
           </CardContent>
         </Card>
 

apps/next/src/app/(app)/threads/page.tsx

@@ -4,7 +4,7 @@ import { useState } from 'react';
 import Link from 'next/link';
 import { useRouter, useSearchParams } from 'next/navigation';
 import { useMutation, useQuery } from 'convex/react';
-import { MessageSquare, Plus } from 'lucide-react';
+import { MessageSquare, Plus, Trash2 } from 'lucide-react';
 import { toast } from 'sonner';
 
 import type { Id } from '@spoon/backend/convex/_generated/dataModel.js';
@@ -43,7 +43,9 @@ const ThreadsPage = () => {
   const [materializeEnvFile, setMaterializeEnvFile] = useState(false);
   const [envFilePath, setEnvFilePath] = useState('.env.local');
   const [creating, setCreating] = useState(false);
+  const [deletingThreadId, setDeletingThreadId] = useState<string>();
   const createThread = useMutation(api.threads.createUserThread);
+  const deleteThread = useMutation(api.threads.deleteThread);
   const spoons = useQuery(api.spoons.listMineWithState, {}) ?? [];
   const profiles = useQuery(api.aiProviderProfiles.listMine, {}) ?? [];
   const defaultProfile = profiles.find((profile) => profile.isDefault);
@@ -91,6 +93,20 @@ const ThreadsPage = () => {
     router.push(next.size ? `/threads?${next.toString()}` : '/threads');
   };
 
+  const threadTarget = (thread: (typeof visibleThreads)[number]) =>
+    `/threads/${thread._id}`;
+  const canDeleteThread = (thread: (typeof visibleThreads)[number]) => {
+    const latestJobStatus = thread.latestJobStatus;
+    const latestWorkspaceStatus = thread.latestJobWorkspaceStatus;
+    if (!latestJobStatus && !latestWorkspaceStatus) return true;
+    return (
+      ['failed', 'cancelled', 'timed_out', 'draft_pr_opened'].includes(
+        latestJobStatus ?? '',
+      ) ||
+      ['stopped', 'expired', 'failed'].includes(latestWorkspaceStatus ?? '')
+    );
+  };
+
   const submitThread = async (event: React.FormEvent<HTMLFormElement>) => {
     event.preventDefault();
     if (!spoonId || !prompt.trim()) return;
@@ -113,6 +129,32 @@ const ThreadsPage = () => {
     }
   };
 
+  const removeThread = async (
+    event: React.MouseEvent<HTMLButtonElement>,
+    threadId: Id<'threads'>,
+  ) => {
+    event.stopPropagation();
+    if (
+      !window.confirm(
+        'Delete this thread and any terminal workspace records attached to it? This cannot be undone.',
+      )
+    ) {
+      return;
+    }
+    setDeletingThreadId(threadId);
+    try {
+      await deleteThread({ threadId });
+      toast.success('Thread deleted.');
+    } catch (error) {
+      console.error(error);
+      toast.error(
+        error instanceof Error ? error.message : 'Could not delete thread.',
+      );
+    } finally {
+      setDeletingThreadId(undefined);
+    }
+  };
+
   return (
     <main className='space-y-6'>
       <div className='flex flex-col justify-between gap-4 md:flex-row md:items-end'>
@@ -304,11 +346,11 @@ const ThreadsPage = () => {
               role='link'
               tabIndex={0}
               className='hover:border-primary/50 cursor-pointer shadow-none transition-colors'
-              onClick={() => router.push(`/threads/${thread._id}`)}
+              onClick={() => router.push(threadTarget(thread))}
               onKeyDown={(event) => {
                 if (event.key === 'Enter' || event.key === ' ') {
                   event.preventDefault();
-                  router.push(`/threads/${thread._id}`);
+                  router.push(threadTarget(thread));
                 }
               }}
             >
@@ -340,14 +382,20 @@ const ThreadsPage = () => {
                   {thread.latestJobStatus ? (
                     <p>{thread.latestJobStatus.replaceAll('_', ' ')}</p>
                   ) : null}
+                  {thread.latestJobWorkspaceStatus ? (
+                    <p>
+                      Workspace:{' '}
+                      {thread.latestJobWorkspaceStatus.replaceAll('_', ' ')}
+                    </p>
+                  ) : null}
                   <div className='mt-2 flex justify-start gap-2 md:justify-end'>
                     {thread.latestAgentJobId ? (
                       <Button size='sm' variant='outline' asChild>
                         <Link
-                          href={`/spoons/${thread.spoonId}/agent/${thread.latestAgentJobId}`}
+                          href={threadTarget(thread)}
                           onClick={(event) => event.stopPropagation()}
                         >
-                          Workspace
+                          Open workspace
                         </Link>
                       </Button>
                     ) : null}
@@ -363,6 +411,26 @@ const ThreadsPage = () => {
                         </a>
                       </Button>
                     ) : null}
+                    <Button
+                      type='button'
+                      size='sm'
+                      variant='destructive'
+                      disabled={
+                        deletingThreadId === thread._id ||
+                        !canDeleteThread(thread)
+                      }
+                      title={
+                        canDeleteThread(thread)
+                          ? 'Delete thread'
+                          : 'Stop or cancel the active workspace before deleting this thread.'
+                      }
+                      onClick={(event) =>
+                        void removeThread(event, thread._id as Id<'threads'>)
+                      }
+                    >
+                      <Trash2 className='size-3' />
+                      Delete
+                    </Button>
                   </div>
                 </div>
               </CardContent>

apps/next/src/components/agent-workspace/agent-thread.tsx

@@ -1,30 +1,113 @@
 'use client';
 
-import { useState } from 'react';
-import { Ban, Send } from 'lucide-react';
+import { useEffect, useMemo, useRef, useState } from 'react';
+import {
+  Ban,
+  FilePenLine,
+  MessagesSquare,
+  Send,
+  Terminal,
+  TriangleAlert,
+} from 'lucide-react';
 import { toast } from 'sonner';
 
 import type { Doc } from '@spoon/backend/convex/_generated/dataModel.js';
 import { Badge, Button, Textarea } from '@spoon/ui';
 
+import { extractFileDiff } from './diff-utils';
+
+type ActivityFilter = 'all' | 'chat' | 'activity' | 'files' | 'errors';
+
+const filters: { value: ActivityFilter; label: string }[] = [
+  { value: 'all', label: 'All' },
+  { value: 'chat', label: 'Chat' },
+  { value: 'activity', label: 'Activity' },
+  { value: 'files', label: 'Files' },
+  { value: 'errors', label: 'Errors' },
+];
+
+const formatEventTime = (value: number) =>
+  new Date(value).toLocaleTimeString([], {
+    hour: 'numeric',
+    minute: '2-digit',
+    second: '2-digit',
+  });
+
+const eventIcon = (event: Doc<'agentJobEvents'>) => {
+  if (event.level === 'error') return <TriangleAlert className='size-3' />;
+  if (event.phase === 'edit') return <FilePenLine className='size-3' />;
+  if (event.phase === 'check' || event.phase === 'test') {
+    return <Terminal className='size-3' />;
+  }
+  return <MessagesSquare className='size-3' />;
+};
+
 export const AgentThread = ({
   jobId,
   messages,
   events,
   interactions,
+  workspaceChanges,
   disabled,
   agentTurnActive,
+  onOpenFile,
+  onOpenDiff,
 }: {
   jobId: string;
   messages: Doc<'agentJobMessages'>[];
   events: Doc<'agentJobEvents'>[];
   interactions: Doc<'agentInteractionRequests'>[];
+  workspaceChanges: Doc<'agentWorkspaceChanges'>[];
   disabled: boolean;
   agentTurnActive: boolean;
+  onOpenFile: (path: string) => void;
+  onOpenDiff: (path: string) => void;
 }) => {
   const [content, setContent] = useState('');
   const [sending, setSending] = useState(false);
   const [replying, setReplying] = useState<string>();
+  const [filter, setFilter] = useState<ActivityFilter>('all');
+  const scrollRef = useRef<HTMLDivElement>(null);
+  const failedMessages = useMemo(
+    () => messages.filter((message) => message.status === 'failed'),
+    [messages],
+  );
+  const visibleMessages =
+    filter === 'activity' || filter === 'files' || filter === 'errors'
+      ? filter === 'errors'
+        ? failedMessages
+        : []
+      : messages;
+  const visibleEvents =
+    filter === 'chat' || filter === 'files'
+      ? []
+      : filter === 'errors'
+        ? events.filter((event) => event.level === 'error')
+        : events;
+  const visibleChanges =
+    filter === 'chat' || filter === 'activity' || filter === 'errors'
+      ? []
+      : workspaceChanges;
+
+  useEffect(() => {
+    const node = scrollRef.current;
+    if (!node) return;
+    const distanceFromBottom =
+      node.scrollHeight - node.scrollTop - node.clientHeight;
+    if (distanceFromBottom < 160 || agentTurnActive) {
+      if (typeof node.scrollTo === 'function') {
+        node.scrollTo({ top: node.scrollHeight, behavior: 'smooth' });
+      } else {
+        node.scrollTop = node.scrollHeight;
+      }
+    }
+  }, [
+    agentTurnActive,
+    events.length,
+    interactions.length,
+    messages.length,
+    workspaceChanges.length,
+  ]);
 
   const send = async () => {
     if (!content.trim()) return;
@@ -84,10 +167,15 @@ export const AgentThread = ({
   };
 
   return (
-    <div className='flex h-full min-h-[520px] flex-col'>
-      <div className='border-border flex items-start justify-between gap-3 border-b p-3'>
+    <div className='flex h-full min-h-0 flex-col overflow-hidden'>
+      <div className='border-border flex flex-none items-start justify-between gap-3 border-b p-3'>
         <div>
+          <div className='flex items-center gap-2'>
             <h2 className='text-sm font-semibold'>Agent thread</h2>
+            {agentTurnActive ? (
+              <Badge variant='secondary'>Working</Badge>
+            ) : null}
+          </div>
           <p className='text-muted-foreground text-xs'>
             Messages, tool activity, and requests persist with this workspace.
           </p>
@@ -103,8 +191,26 @@ export const AgentThread = ({
           Abort
         </Button>
       </div>
-      <div className='min-h-0 flex-1 space-y-3 overflow-auto p-3'>
-        {interactions.map((interaction) => (
+      <div className='border-border flex flex-none gap-1 overflow-x-auto border-b px-3 py-2'>
+        {filters.map((item) => (
+          <Button
+            key={item.value}
+            type='button'
+            variant={filter === item.value ? 'secondary' : 'ghost'}
+            size='sm'
+            className='h-7 flex-none text-xs'
+            onClick={() => setFilter(item.value)}
+          >
+            {item.label}
+          </Button>
+        ))}
+      </div>
+      <div
+        ref={scrollRef}
+        className='min-h-0 flex-1 space-y-3 overflow-y-auto overscroll-contain p-3'
+      >
+        {(filter === 'all' || filter === 'chat') && interactions.length > 0
+          ? interactions.map((interaction) => (
               <article
                 key={interaction._id}
                 className='border-primary/40 bg-primary/5 rounded-md border p-3 text-sm'
@@ -115,7 +221,9 @@ export const AgentThread = ({
                     {interaction.status}
                   </Badge>
                 </div>
-            <p className='text-sm whitespace-pre-wrap'>{interaction.body}</p>
+                <p className='text-sm whitespace-pre-wrap'>
+                  {interaction.body}
+                </p>
                 {interaction.status === 'pending' ? (
                   <div className='mt-3 flex gap-2'>
                     <Button
@@ -138,8 +246,9 @@ export const AgentThread = ({
                   </div>
                 ) : null}
               </article>
-        ))}
-        {messages.map((message) => (
+            ))
+          : null}
+        {visibleMessages.map((message) => (
           <article
             key={message._id}
             className={
@@ -167,27 +276,107 @@ export const AgentThread = ({
             </p>
           </article>
         ))}
-        {events.slice(-20).map((event) => (
+        {visibleChanges.map((change) => (
           <article
-            key={event._id}
-            className='border-border text-muted-foreground rounded-md border border-dashed p-2 text-xs'
+            key={change._id}
+            className='border-border bg-background rounded-md border p-3 text-sm'
           >
-            <div className='flex items-center justify-between gap-2'>
-              <span className='font-medium capitalize'>
-                {event.phase} / {event.level}
+            <div className='flex items-center justify-between gap-3'>
+              <div className='min-w-0'>
+                <div className='flex items-center gap-2'>
+                  <FilePenLine className='text-primary size-4 flex-none' />
+                  <span className='truncate font-mono text-xs'>
+                    {change.path}
                   </span>
-              <span>{new Date(event.createdAt).toLocaleTimeString()}</span>
                 </div>
-            <p className='mt-1 whitespace-pre-wrap'>{event.message}</p>
+                <p className='text-muted-foreground mt-1 text-xs capitalize'>
+                  {change.source} {change.changeType}
+                </p>
+              </div>
+              <div className='flex flex-none items-center gap-2'>
+                {extractFileDiff(change.diff, change.path) ? (
+                  <Button
+                    type='button'
+                    variant='outline'
+                    size='sm'
+                    onClick={() => onOpenDiff(change.path)}
+                  >
+                    View diff
+                  </Button>
+                ) : null}
+                {change.path !== '.' ? (
+                  <Button
+                    type='button'
+                    variant='outline'
+                    size='sm'
+                    onClick={() => onOpenFile(change.path)}
+                  >
+                    Open
+                  </Button>
+                ) : null}
+              </div>
+            </div>
+            {extractFileDiff(change.diff, change.path) ? (
+              <details className='mt-3'>
+                <summary className='text-muted-foreground cursor-pointer text-xs'>
+                  File diff
+                </summary>
+                <pre className='bg-muted mt-2 max-h-72 overflow-auto rounded p-2 text-xs whitespace-pre-wrap'>
+                  {extractFileDiff(change.diff, change.path)}
+                </pre>
+              </details>
+            ) : null}
           </article>
         ))}
+        {visibleEvents.slice(-80).map((event) => (
+          <article
+            key={event._id}
+            className={
+              event.level === 'error'
+                ? 'border-destructive/40 bg-destructive/5 rounded-md border p-2 text-xs'
+                : 'border-border text-muted-foreground rounded-md border border-dashed p-2 text-xs'
+            }
+          >
+            <div className='flex items-center justify-between gap-2'>
+              <span className='flex min-w-0 items-center gap-1 font-medium capitalize'>
+                {eventIcon(event)}
+                {event.phase} / {event.level}
+              </span>
+              <span>{formatEventTime(event.createdAt)}</span>
             </div>
-      <div className='border-border space-y-2 border-t p-3'>
+            <p className='mt-1 whitespace-pre-wrap'>{event.message}</p>
+            {event.metadata ? (
+              <details className='mt-2'>
+                <summary className='cursor-pointer'>Details</summary>
+                <pre className='bg-muted mt-1 max-h-40 overflow-auto rounded p-2 whitespace-pre-wrap'>
+                  {event.metadata}
+                </pre>
+              </details>
+            ) : null}
+          </article>
+        ))}
+        {visibleMessages.length === 0 &&
+        visibleEvents.length === 0 &&
+        visibleChanges.length === 0 &&
+        (filter !== 'chat' || interactions.length === 0) ? (
+          <p className='text-muted-foreground p-3 text-sm'>
+            No {filter === 'all' ? 'agent activity' : filter} has been recorded
+            yet.
+          </p>
+        ) : null}
+      </div>
+      <div className='border-border flex-none space-y-2 border-t p-3'>
         <Textarea
           value={content}
           placeholder='Ask the agent to inspect, explain, or change this fork.'
           disabled={disabled || sending}
           onChange={(event) => setContent(event.target.value)}
+          onKeyDown={(event) => {
+            if (event.key === 'Enter' && !event.shiftKey) {
+              event.preventDefault();
+              void send();
+            }
+          }}
         />
         <Button
           type='button'

apps/next/src/components/agent-workspace/agent-workspace-shell.tsx

@@ -1,7 +1,9 @@
 'use client';
 
+import type { CSSProperties, PointerEvent as ReactPointerEvent } from 'react';
 import { useCallback, useEffect, useState } from 'react';
 import { useMutation, useQuery } from 'convex/react';
+import { FileCode, GitCompare, MessagesSquare } from 'lucide-react';
 import { toast } from 'sonner';
 
 import type { Id } from '@spoon/backend/convex/_generated/dataModel.js';
@@ -33,6 +35,8 @@ export const AgentWorkspaceShell = ({ jobId }: { jobId: Id<'agentJobs'> }) => {
     useQuery(api.agentJobs.listMessages, { jobId, limit: 200 }) ?? [];
   const events =
     useQuery(api.agentJobs.listEvents, { jobId, limit: 200 }) ?? [];
+  const workspaceChanges =
+    useQuery(api.agentJobs.listWorkspaceChanges, { jobId, limit: 200 }) ?? [];
   const interactions =
     useQuery(api.agentJobs.listInteractionRequests, {
       jobId,
@@ -50,11 +54,16 @@ export const AgentWorkspaceShell = ({ jobId }: { jobId: Id<'agentJobs'> }) => {
   const [expandedDirectoryPaths, setExpandedDirectoryPaths] = useState<
     string[]
   >([]);
+  const [agentThreadWidth, setAgentThreadWidth] = useState(420);
   const [vimEnabled, setVimEnabled] = useState(false);
   const [hydratedUiState, setHydratedUiState] = useState(false);
   const [diff, setDiff] = useState('');
+  const [focusedDiffPath, setFocusedDiffPath] = useState<string>();
   const [workspaceError, setWorkspaceError] = useState<string>();
   const [agentTurnActive, setAgentTurnActive] = useState(false);
+  const [activeWorkspaceTab, setActiveWorkspaceTab] = useState<
+    'editor' | 'diff' | 'thread'
+  >('editor');
 
   const workspaceDisabled =
     !job ||
@@ -177,6 +186,7 @@ export const AgentWorkspaceShell = ({ jobId }: { jobId: Id<'agentJobs'> }) => {
       setOpenFilePaths(uiState.openFilePaths);
       setActiveFilePath(uiState.activeFilePath);
       setExpandedDirectoryPaths(uiState.expandedDirectoryPaths);
+      setAgentThreadWidth(uiState.agentThreadWidth ?? 420);
       setVimEnabled(uiState.vimEnabled);
       setHydratedUiState(true);
     }, 0);
@@ -192,6 +202,7 @@ export const AgentWorkspaceShell = ({ jobId }: { jobId: Id<'agentJobs'> }) => {
         activeFilePath,
         vimEnabled,
         expandedDirectoryPaths,
+        agentThreadWidth,
       }).catch((error: unknown) => {
         console.error(error);
       });
@@ -200,6 +211,7 @@ export const AgentWorkspaceShell = ({ jobId }: { jobId: Id<'agentJobs'> }) => {
   }, [
     activeFilePath,
     expandedDirectoryPaths,
+    agentThreadWidth,
     hydratedUiState,
     jobId,
     openFilePaths,
@@ -230,11 +242,11 @@ export const AgentWorkspaceShell = ({ jobId }: { jobId: Id<'agentJobs'> }) => {
   const activeFile = activeFilePath ? files[activeFilePath] : undefined;
   const recoverWorkspace = async () => {
     if (!job.threadId) return;
-    const newJobId = await createJobForThread({
+    await createJobForThread({
       threadId: job.threadId,
       jobType: job.jobType ?? 'user_change',
     });
-    window.location.href = `/spoons/${job.spoonId}/agent/${newJobId}`;
+    window.location.href = `/threads/${job.threadId}`;
   };
 
   const deleteStaleWorkspace = async () => {
@@ -248,6 +260,33 @@ export const AgentWorkspaceShell = ({ jobId }: { jobId: Id<'agentJobs'> }) => {
 
   const saveFile = async (content: string) => {
     if (!activeFilePath) return;
+    const activeFileBeforeSave = files[activeFilePath];
+    if (activeFileBeforeSave) {
+      const latestResponse = await fetch(
+        `/api/agent-jobs/${jobId}/file?path=${encodeURIComponent(activeFilePath)}`,
+      );
+      if (latestResponse.ok) {
+        const latestData = (await latestResponse.json()) as FileResponse;
+        if (latestData.content !== activeFileBeforeSave.savedContent) {
+          const overwrite = window.confirm(
+            `${activeFilePath} changed in the workspace after you opened it. Overwrite those newer changes with your editor contents?`,
+          );
+          if (!overwrite) {
+            setFiles((current) => ({
+              ...current,
+              [activeFilePath]: {
+                ...activeFileBeforeSave,
+                content: latestData.content,
+                savedContent: latestData.content,
+                saving: false,
+              },
+            }));
+            toast.info('File reloaded with latest workspace contents.');
+            return;
+          }
+        }
+      }
+    }
     setFiles((current) => ({
       ...current,
       [activeFilePath]: {
@@ -325,20 +364,54 @@ export const AgentWorkspaceShell = ({ jobId }: { jobId: Id<'agentJobs'> }) => {
     );
   };
 
+  const openFileFromActivity = (path: string) => {
+    openFile(path);
+    setActiveWorkspaceTab('editor');
+  };
+
+  const openDiffFromActivity = (path: string) => {
+    setFocusedDiffPath(path);
+    setActiveWorkspaceTab('diff');
+  };
+
+  const resizeAgentThread = (event: ReactPointerEvent<HTMLDivElement>) => {
+    event.preventDefault();
+    const startX = event.clientX;
+    const startWidth = agentThreadWidth;
+    const move = (moveEvent: PointerEvent) => {
+      const nextWidth = Math.min(
+        Math.max(startWidth - (moveEvent.clientX - startX), 320),
+        720,
+      );
+      setAgentThreadWidth(Math.round(nextWidth));
+    };
+    const up = () => {
+      window.removeEventListener('pointermove', move);
+      window.removeEventListener('pointerup', up);
+    };
+    window.addEventListener('pointermove', move);
+    window.addEventListener('pointerup', up);
+  };
+
   return (
     <main className='border-border bg-muted/20 flex h-[calc(100vh-8.5rem)] min-h-[720px] flex-col overflow-hidden rounded-md border'>
       <JobStatusBar job={job} />
       {workspaceError ? (
         <div className='border-border bg-background border-b p-4'>
           <div className='border-destructive/40 bg-destructive/5 rounded-md border p-4'>
-            <p className='font-medium'>Workspace not active on this worker</p>
+            <p className='font-medium'>Thread workspace needs recovery</p>
             <p className='text-muted-foreground mt-1 text-sm'>
+              The saved workspace record exists, but this worker cannot reach
+              its active runtime. This usually happens after a worker restart or
+              local container cleanup.
+            </p>
+            <p className='text-muted-foreground mt-2 text-xs break-all'>
               {workspaceError}
             </p>
             <div className='mt-3 flex flex-wrap gap-2'>
               {job.threadId ? (
                 <Button type='button' onClick={() => void recoverWorkspace()}>
-                  Recreate workspace run
+                  Start a fresh run
                 </Button>
               ) : null}
               <Button
@@ -346,7 +419,7 @@ export const AgentWorkspaceShell = ({ jobId }: { jobId: Id<'agentJobs'> }) => {
                 variant='outline'
                 onClick={() => void deleteStaleWorkspace()}
               >
-                Delete stale workspace
+                Delete stale record
               </Button>
               {job.threadId ? (
                 <Button type='button' variant='outline' asChild>
@@ -360,7 +433,14 @@ export const AgentWorkspaceShell = ({ jobId }: { jobId: Id<'agentJobs'> }) => {
       <div className='border-border bg-background flex items-center justify-end border-b px-4 py-2'>
         <WorkspaceActions job={job} disabled={workspaceDisabled} />
       </div>
-      <div className='grid min-h-0 flex-1 grid-cols-1 lg:grid-cols-[280px_minmax(0,1fr)] 2xl:grid-cols-[300px_minmax(0,1fr)_420px]'>
+      <div
+        className='grid min-h-0 flex-1 grid-cols-1 lg:grid-cols-[280px_minmax(0,1fr)] 2xl:grid-cols-[300px_minmax(0,1fr)_6px_var(--agent-thread-width)]'
+        style={
+          {
+            '--agent-thread-width': `${agentThreadWidth}px`,
+          } as CSSProperties
+        }
+      >
         <aside className='border-border bg-background min-h-0 border-r'>
           <div className='border-border border-b p-3'>
             <h2 className='text-sm font-semibold'>Files</h2>
@@ -374,15 +454,34 @@ export const AgentWorkspaceShell = ({ jobId }: { jobId: Id<'agentJobs'> }) => {
             onToggleDirectory={toggleDirectory}
           />
         </aside>
-        <section className='bg-background flex min-w-0 flex-col'>
-          <Tabs defaultValue='editor' className='flex min-h-0 flex-1 flex-col'>
-            <TabsList
-              variant='line'
-              className='border-border h-11 flex-none justify-start rounded-none border-b px-3'
+        <section className='bg-background flex min-w-0 flex-col overflow-hidden'>
+          <Tabs
+            value={activeWorkspaceTab}
+            onValueChange={(value) =>
+              setActiveWorkspaceTab(value as 'editor' | 'diff' | 'thread')
+            }
+            className='flex min-h-0 flex-1 flex-col'
           >
-              <TabsTrigger value='editor'>Editor</TabsTrigger>
-              <TabsTrigger value='diff'>Diff</TabsTrigger>
-              <TabsTrigger value='thread' className='2xl:hidden'>
+            <TabsList className='border-border bg-muted/30 h-12 flex-none justify-start rounded-none border-b px-3'>
+              <TabsTrigger
+                value='editor'
+                className='data-active:bg-background data-active:text-foreground data-active:shadow-sm'
+              >
+                <FileCode className='size-4' />
+                Editor
+              </TabsTrigger>
+              <TabsTrigger
+                value='diff'
+                className='data-active:bg-background data-active:text-foreground data-active:shadow-sm'
+              >
+                <GitCompare className='size-4' />
+                Diff viewer
+              </TabsTrigger>
+              <TabsTrigger
+                value='thread'
+                className='data-active:bg-background data-active:text-foreground data-active:shadow-sm 2xl:hidden'
+              >
+                <MessagesSquare className='size-4' />
                 Thread
               </TabsTrigger>
             </TabsList>
@@ -427,32 +526,50 @@ export const AgentWorkspaceShell = ({ jobId }: { jobId: Id<'agentJobs'> }) => {
               />
             </TabsContent>
             <TabsContent value='diff' className='m-0 min-h-0 flex-1'>
-              <DiffViewer diff={diff} onRefresh={loadDiff} />
+              <DiffViewer
+                diff={diff}
+                focusedPath={focusedDiffPath}
+                onRefresh={loadDiff}
+                onClearFocusedPath={() => setFocusedDiffPath(undefined)}
+              />
             </TabsContent>
             <TabsContent
               value='thread'
-              className='m-0 min-h-0 flex-1 2xl:hidden'
+              className='m-0 min-h-0 flex-1 overflow-hidden 2xl:hidden'
             >
               <AgentThread
                 jobId={jobId}
                 messages={messages}
                 events={events}
                 interactions={interactions}
+                workspaceChanges={workspaceChanges}
                 disabled={workspaceDisabled}
                 agentTurnActive={agentTurnActive}
+                onOpenFile={openFileFromActivity}
+                onOpenDiff={openDiffFromActivity}
               />
             </TabsContent>
           </Tabs>
           <CommandPanel jobId={jobId} disabled={workspaceDisabled} />
         </section>
-        <aside className='border-border bg-muted/20 hidden min-w-0 border-l 2xl:block'>
+        <div
+          role='separator'
+          aria-label='Resize agent thread'
+          aria-orientation='vertical'
+          className='bg-border hover:bg-primary/50 hidden cursor-col-resize transition-colors 2xl:block'
+          onPointerDown={resizeAgentThread}
+        />
+        <aside className='border-border bg-muted/20 hidden min-h-0 min-w-0 overflow-hidden border-l 2xl:block'>
           <AgentThread
             jobId={jobId}
             messages={messages}
             events={events}
             interactions={interactions}
+            workspaceChanges={workspaceChanges}
             disabled={workspaceDisabled}
             agentTurnActive={agentTurnActive}
+            onOpenFile={openFileFromActivity}
+            onOpenDiff={openDiffFromActivity}
           />
         </aside>
       </div>

apps/next/src/components/agent-workspace/code-editor.tsx

@@ -83,8 +83,11 @@ export const CodeEditor = ({
 
   return (
     <div className='flex h-full min-h-0 flex-col'>
-      <div className='border-border flex h-11 items-center justify-between gap-3 border-b px-3'>
+      <div className='border-border flex h-14 items-center justify-between gap-3 border-b px-3'>
         <div className='min-w-0'>
+          <p className='text-muted-foreground text-[11px] font-medium tracking-wide uppercase'>
+            Editor
+          </p>
           <p className='truncate font-mono text-xs'>{path}</p>
           {dirty ? (
             <p className='text-muted-foreground text-xs'>Unsaved changes</p>

apps/next/src/components/agent-workspace/diff-utils.ts

@@ -0,0 +1,26 @@
+export const extractFileDiff = (diff: string | undefined, filePath: string) => {
+  if (!diff?.trim() || filePath === '.') return '';
+  const lines = diff.split('\n');
+  const sections: string[][] = [];
+  let current: string[] | null = null;
+  for (const line of lines) {
+    if (line.startsWith('diff --git ')) {
+      if (current) sections.push(current);
+      current = [line];
+      continue;
+    }
+    current?.push(line);
+  }
+  if (current) sections.push(current);
+  const normalizedPath = filePath.replace(/^\.\/+/, '');
+  const section = sections.find((item) => {
+    const header = item[0] ?? '';
+    return (
+      header.includes(` a/${normalizedPath} `) ||
+      header.endsWith(` a/${normalizedPath}`) ||
+      header.includes(` b/${normalizedPath}`) ||
+      header.endsWith(` b/${normalizedPath}`)
+    );
+  });
+  return section?.join('\n') ?? '';
+};

apps/next/src/components/agent-workspace/diff-viewer.tsx

@@ -4,6 +4,8 @@ import dynamic from 'next/dynamic';
 
 import { Button } from '@spoon/ui';
 
+import { extractFileDiff } from './diff-utils';
+
 const MonacoEditor = dynamic(async () => await import('@monaco-editor/react'), {
   ssr: false,
 });
@@ -22,34 +24,56 @@ const diffStats = (diff: string) => {
 
 export const DiffViewer = ({
   diff,
+  focusedPath,
   onRefresh,
+  onClearFocusedPath,
 }: {
   diff: string;
+  focusedPath?: string;
   onRefresh: () => Promise<void>;
+  onClearFocusedPath?: () => void;
 }) => {
-  const stats = diffStats(diff);
+  const focusedDiff = focusedPath ? extractFileDiff(diff, focusedPath) : '';
+  const visibleDiff = focusedPath ? focusedDiff : diff;
+  const stats = diffStats(visibleDiff);
   return (
     <div className='flex h-full min-h-0 flex-col'>
       <div className='border-border flex h-12 items-center justify-between gap-3 border-b px-3'>
         <div className='min-w-0'>
-          <p className='text-sm font-medium'>Workspace diff</p>
+          <p className='truncate text-sm font-medium'>
+            {focusedPath ? `Diff viewer: ${focusedPath}` : 'Diff viewer'}
+          </p>
           <p className='text-muted-foreground truncate text-xs'>
-            {diff.trim()
+            {visibleDiff.trim()
               ? `${stats.files} files, +${stats.additions} -${stats.removals}`
+              : focusedPath
+                ? 'No diff for this file'
                 : 'Current git diff'}
           </p>
         </div>
+        <div className='flex flex-none items-center gap-2'>
+          {focusedPath ? (
+            <Button
+              type='button'
+              variant='ghost'
+              size='sm'
+              onClick={onClearFocusedPath}
+            >
+              Show all
+            </Button>
+          ) : null}
           <Button type='button' variant='outline' size='sm' onClick={onRefresh}>
             Refresh
           </Button>
         </div>
-      {diff.trim() ? (
+      </div>
+      {visibleDiff.trim() ? (
         <MonacoEditor
           height='100%'
           width='100%'
           language='diff'
           theme='vs-dark'
-          value={diff}
+          value={visibleDiff}
           options={{
             readOnly: true,
             minimap: { enabled: false },
@@ -61,7 +85,9 @@ export const DiffViewer = ({
         />
       ) : (
         <div className='text-muted-foreground flex flex-1 items-center justify-center text-sm'>
-          No workspace diff yet.
+          {focusedPath
+            ? 'No diff is recorded for this file yet.'
+            : 'No workspace diff yet.'}
         </div>
       )}
     </div>

apps/next/src/components/agent-workspace/workspace-actions.tsx

@@ -23,6 +23,7 @@ export const WorkspaceActions = ({
 }) => {
   const router = useRouter();
   const deleteWorkspace = useMutation(api.agentJobs.deleteWorkspace);
+  const deleteThread = useMutation(api.threads.deleteThread);
   const canDelete =
     ['failed', 'cancelled', 'timed_out'].includes(job.status) ||
     ['stopped', 'expired', 'failed'].includes(job.workspaceStatus ?? '');
@@ -58,6 +59,27 @@ export const WorkspaceActions = ({
     }
   };
 
+  const removeThread = async () => {
+    if (!job.threadId) return;
+    if (
+      !window.confirm(
+        'Delete this thread and any terminal workspace records attached to it? This cannot be undone.',
+      )
+    ) {
+      return;
+    }
+    try {
+      await deleteThread({ threadId: job.threadId });
+      toast.success('Thread deleted.');
+      router.push('/threads');
+    } catch (error) {
+      console.error(error);
+      toast.error(
+        error instanceof Error ? error.message : 'Could not delete thread.',
+      );
+    }
+  };
+
   const stop = async () => {
     try {
       const response = await fetch(`/api/agent-jobs/${job._id}/stop`, {
@@ -96,10 +118,23 @@ export const WorkspaceActions = ({
         Stop
       </Button>
       {canDelete ? (
-        <Button type='button' variant='destructive' size='sm' onClick={remove}>
+        <>
+          {job.threadId ? (
+            <Button
+              type='button'
+              variant='destructive'
+              size='sm'
+              onClick={removeThread}
+            >
+              <Trash2 className='size-4' />
+              Delete thread
+            </Button>
+          ) : null}
+          <Button type='button' variant='outline' size='sm' onClick={remove}>
             <Trash2 className='size-4' />
             Delete workspace
           </Button>
+        </>
       ) : null}
     </div>
   );

apps/next/src/components/agents/agent-artifact-viewer.tsx

@@ -1,51 +0,0 @@
-'use client';
-
-import { Copy } from 'lucide-react';
-import { toast } from 'sonner';
-
-import type { Doc } from '@spoon/backend/convex/_generated/dataModel.js';
-import { Button } from '@spoon/ui';
-
-export const AgentArtifactViewer = ({
-  artifacts,
-}: {
-  artifacts: Doc<'agentJobArtifacts'>[];
-}) => {
-  if (!artifacts.length) {
-    return (
-      <p className='text-muted-foreground text-sm'>
-        No artifacts captured yet.
-      </p>
-    );
-  }
-
-  return (
-    <div className='space-y-3'>
-      {artifacts.map((artifact) => (
-        <section key={artifact._id} className='border-border rounded-md border'>
-          <div className='flex items-center justify-between gap-3 border-b p-3'>
-            <div>
-              <h3 className='text-sm font-semibold'>{artifact.title}</h3>
-              <p className='text-muted-foreground text-xs'>{artifact.kind}</p>
-            </div>
-            <Button
-              type='button'
-              variant='outline'
-              size='icon'
-              aria-label='Copy artifact'
-              onClick={async () => {
-                await navigator.clipboard.writeText(artifact.content);
-                toast.success('Artifact copied.');
-              }}
-            >
-              <Copy className='size-4' />
-            </Button>
-          </div>
-          <pre className='bg-muted/40 max-h-96 overflow-auto p-3 text-xs whitespace-pre-wrap'>
-            {artifact.content}
-          </pre>
-        </section>
-      ))}
-    </div>
-  );
-};

apps/next/src/components/agents/agent-event-log.tsx

@@ -1,47 +0,0 @@
-'use client';
-
-import type { Doc } from '@spoon/backend/convex/_generated/dataModel.js';
-
-const formatTime = (value: number) =>
-  new Intl.DateTimeFormat(undefined, {
-    month: 'short',
-    day: 'numeric',
-    hour: 'numeric',
-    minute: '2-digit',
-  }).format(value);
-
-export const AgentEventLog = ({
-  events,
-}: {
-  events: Doc<'agentJobEvents'>[];
-}) => {
-  if (!events.length) {
-    return (
-      <p className='text-muted-foreground text-sm'>No worker events yet.</p>
-    );
-  }
-
-  return (
-    <div className='divide-border overflow-hidden rounded-md border'>
-      {events.map((event) => (
-        <div key={event._id} className='grid gap-1 border-b p-3 text-sm'>
-          <div className='flex flex-wrap items-center gap-2'>
-            <span className='font-mono text-xs uppercase'>{event.phase}</span>
-            <span className='text-muted-foreground text-xs'>
-              {formatTime(event.createdAt)}
-            </span>
-            <span className='text-muted-foreground text-xs capitalize'>
-              {event.level}
-            </span>
-          </div>
-          <p className='whitespace-pre-wrap'>{event.message}</p>
-          {event.metadata ? (
-            <pre className='bg-muted overflow-auto rounded p-2 text-xs'>
-              {event.metadata}
-            </pre>
-          ) : null}
-        </div>
-      ))}
-    </div>
-  );
-};

apps/next/src/components/agents/agent-job-detail.tsx

@@ -1,66 +0,0 @@
-'use client';
-
-import { useQuery } from 'convex/react';
-
-import type { Doc } from '@spoon/backend/convex/_generated/dataModel.js';
-import { api } from '@spoon/backend/convex/_generated/api.js';
-import { Card, CardContent, CardHeader, CardTitle } from '@spoon/ui';
-
-import { AgentArtifactViewer } from './agent-artifact-viewer';
-import { AgentEventLog } from './agent-event-log';
-
-export const AgentJobDetail = ({ job }: { job: Doc<'agentJobs'> }) => {
-  const events =
-    useQuery(api.agentJobs.listEvents, { jobId: job._id, limit: 200 }) ?? [];
-  const artifacts =
-    useQuery(api.agentJobs.listArtifacts, { jobId: job._id }) ?? [];
-
-  return (
-    <Card className='shadow-none'>
-      <CardHeader className='pb-3'>
-        <CardTitle className='text-base'>Job details</CardTitle>
-      </CardHeader>
-      <CardContent className='space-y-5'>
-        <div className='grid gap-3 text-sm md:grid-cols-3'>
-          <div>
-            <p className='text-muted-foreground text-xs'>Status</p>
-            <p className='font-medium capitalize'>
-              {job.status.replaceAll('_', ' ')}
-            </p>
-          </div>
-          <div>
-            <p className='text-muted-foreground text-xs'>Branch</p>
-            <p className='font-mono text-xs'>{job.workBranch}</p>
-          </div>
-          <div>
-            <p className='text-muted-foreground text-xs'>Model</p>
-            <p className='font-medium'>{job.model}</p>
-          </div>
-        </div>
-        {job.pullRequestUrl ? (
-          <a
-            href={job.pullRequestUrl}
-            target='_blank'
-            rel='noreferrer'
-            className='text-primary text-sm font-medium underline-offset-4 hover:underline'
-          >
-            Open draft PR #{job.pullRequestNumber}
-          </a>
-        ) : null}
-        {job.error ? (
-          <pre className='border-destructive bg-destructive/5 text-destructive overflow-auto rounded-md border p-3 text-xs whitespace-pre-wrap'>
-            {job.error}
-          </pre>
-        ) : null}
-        <section className='space-y-2'>
-          <h3 className='text-sm font-semibold'>Events</h3>
-          <AgentEventLog events={events} />
-        </section>
-        <section className='space-y-2'>
-          <h3 className='text-sm font-semibold'>Artifacts</h3>
-          <AgentArtifactViewer artifacts={artifacts} />
-        </section>
-      </CardContent>
-    </Card>
-  );
-};

apps/next/src/components/agents/agent-job-list.tsx

@@ -1,151 +0,0 @@
-'use client';
-
-import { useState } from 'react';
-import Link from 'next/link';
-import { useMutation } from 'convex/react';
-import { ExternalLink, MonitorUp, Trash2, XCircle } from 'lucide-react';
-import { toast } from 'sonner';
-
-import type { Doc } from '@spoon/backend/convex/_generated/dataModel.js';
-import { api } from '@spoon/backend/convex/_generated/api.js';
-import { Badge, Button } from '@spoon/ui';
-
-import { AgentJobDetail } from './agent-job-detail';
-
-const formatTime = (value: number) =>
-  new Intl.DateTimeFormat(undefined, {
-    month: 'short',
-    day: 'numeric',
-    hour: 'numeric',
-    minute: '2-digit',
-  }).format(value);
-
-export const AgentJobList = ({ jobs }: { jobs: Doc<'agentJobs'>[] }) => {
-  const cancel = useMutation(api.agentJobs.cancel);
-  const deleteWorkspace = useMutation(api.agentJobs.deleteWorkspace);
-  const [selectedJobId, setSelectedJobId] = useState<string | null>(
-    jobs[0]?._id ?? null,
-  );
-  const selectedJob = jobs.find((job) => job._id === selectedJobId) ?? jobs[0];
-  const selectedJobCanDelete = selectedJob
-    ? ['failed', 'cancelled', 'timed_out'].includes(selectedJob.status) ||
-      ['stopped', 'expired', 'failed'].includes(
-        selectedJob.workspaceStatus ?? '',
-      )
-    : false;
-
-  if (!jobs.length) {
-    return (
-      <div className='border-border rounded-md border p-5'>
-        <h3 className='text-sm font-semibold'>No agent jobs yet</h3>
-        <p className='text-muted-foreground mt-1 text-sm'>
-          Queue a job to have Spoon open a draft PR against this fork.
-        </p>
-      </div>
-    );
-  }
-
-  return (
-    <div className='grid gap-4 xl:grid-cols-[0.85fr_1.15fr]'>
-      <div className='divide-border overflow-hidden rounded-md border'>
-        {jobs.map((job) => (
-          <button
-            key={job._id}
-            type='button'
-            className='hover:bg-muted/40 data-[selected=true]:bg-muted/60 block w-full border-b p-3 text-left'
-            data-selected={job._id === selectedJob?._id}
-            onClick={() => setSelectedJobId(job._id)}
-          >
-            <div className='flex items-start justify-between gap-3'>
-              <div className='min-w-0'>
-                <p className='truncate text-sm font-medium'>{job.prompt}</p>
-                <p className='text-muted-foreground mt-1 font-mono text-xs'>
-                  {job.workBranch}
-                </p>
-              </div>
-              <Badge variant='outline' className='capitalize'>
-                {job.status.replaceAll('_', ' ')}
-              </Badge>
-            </div>
-            <div className='text-muted-foreground mt-2 flex flex-wrap gap-2 text-xs'>
-              <span>{formatTime(job.createdAt)}</span>
-              {job.pullRequestUrl ? (
-                <a
-                  href={job.pullRequestUrl}
-                  target='_blank'
-                  rel='noreferrer'
-                  className='text-primary inline-flex items-center gap-1'
-                >
-                  PR <ExternalLink className='size-3' />
-                </a>
-              ) : null}
-            </div>
-          </button>
-        ))}
-      </div>
-      {selectedJob ? (
-        <div className='space-y-3'>
-          {[
-            'queued',
-            'claimed',
-            'preparing',
-            'running',
-            'checks_running',
-          ].includes(selectedJob.status) ? (
-            <Button
-              type='button'
-              variant='outline'
-              onClick={async () => {
-                try {
-                  await cancel({ jobId: selectedJob._id });
-                  toast.success('Agent job cancelled.');
-                } catch (error) {
-                  console.error(error);
-                  toast.error('Could not cancel job.');
-                }
-              }}
-            >
-              <XCircle className='size-4' />
-              Cancel job
-            </Button>
-          ) : null}
-          <Button asChild>
-            <Link
-              href={`/spoons/${selectedJob.spoonId}/agent/${selectedJob._id}`}
-            >
-              <MonitorUp className='size-4' />
-              Open workspace
-            </Link>
-          </Button>
-          {selectedJobCanDelete ? (
-            <Button
-              type='button'
-              variant='destructive'
-              onClick={async () => {
-                if (
-                  !window.confirm(
-                    'Delete this workspace and its messages, events, artifacts, diffs, and UI state? This cannot be undone.',
-                  )
-                ) {
-                  return;
-                }
-                try {
-                  await deleteWorkspace({ jobId: selectedJob._id });
-                  toast.success('Workspace deleted.');
-                  setSelectedJobId(null);
-                } catch (error) {
-                  console.error(error);
-                  toast.error('Could not delete workspace.');
-                }
-              }}
-            >
-              <Trash2 className='size-4' />
-              Delete workspace
-            </Button>
-          ) : null}
-          <AgentJobDetail job={selectedJob} />
-        </div>
-      ) : null}
-    </div>
-  );
-};

apps/next/src/components/app-shell/app-shell.tsx

@@ -5,7 +5,9 @@ import { usePathname } from 'next/navigation';
 
 export const AppShell = ({ children }: { children: ReactNode }) => {
   const pathname = usePathname();
-  const isWorkspace = /\/spoons\/[^/]+\/agent\/[^/]+/.test(pathname);
+  const isWorkspace =
+    /\/spoons\/[^/]+\/agent\/[^/]+/.test(pathname) ||
+    /^\/threads\/[^/]+/.test(pathname);
 
   return (
     <div className='bg-muted/20 flex-1 border-t'>

apps/next/src/components/spoons/spoon-agent-settings-form.tsx

@@ -176,7 +176,7 @@ export const SpoonAgentSettingsForm = ({
       </CardHeader>
       <CardContent className='space-y-4'>
         <div className='flex items-center justify-between gap-4'>
-          <Label htmlFor='agentEnabled'>Enable agent jobs</Label>
+          <Label htmlFor='agentEnabled'>Enable thread workspaces</Label>
           <Switch
             id='agentEnabled'
             checked={enabled}

apps/next/src/components/threads/thread-workspace-form.tsx

@@ -1,8 +1,9 @@
 'use client';
 
 import { useState } from 'react';
+import { useRouter } from 'next/navigation';
 import { useMutation, useQuery } from 'convex/react';
-import { Bot } from 'lucide-react';
+import { MessageSquarePlus } from 'lucide-react';
 import { toast } from 'sonner';
 
 import type { Doc, Id } from '@spoon/backend/convex/_generated/dataModel.js';
@@ -35,13 +36,14 @@ type AgentSettings = {
   aiProviderProfileId?: Id<'aiProviderProfiles'>;
 };
 
-export const AgentRequestForm = ({
+export const ThreadWorkspaceForm = ({
   spoon,
   agentSettings,
 }: {
   spoon: Doc<'spoons'>;
   agentSettings?: AgentSettings | null;
 }) => {
+  const router = useRouter();
   const secrets =
     useQuery(api.spoonSecrets.listForSpoon, {
       spoonId: spoon._id,
@@ -90,7 +92,7 @@ export const AgentRequestForm = ({
     event.preventDefault();
     setSubmitting(true);
     try {
-      await createThread({
+      const threadId = await createThread({
         spoonId: spoon._id,
         prompt,
         baseBranch,
@@ -105,9 +107,10 @@ export const AgentRequestForm = ({
       setPrompt('');
       setRequestedBranchName('');
       toast.success('Thread created.');
+      router.push(`/threads/${threadId}`);
     } catch (error) {
       console.error(error);
-      toast.error('Could not queue agent job.');
+      toast.error('Could not create thread workspace.');
     } finally {
       setSubmitting(false);
     }
@@ -117,16 +120,16 @@ export const AgentRequestForm = ({
     <Card className='shadow-none'>
       <CardHeader className='pb-3'>
         <CardTitle className='flex items-center gap-2 text-base'>
-          <Bot className='size-4' />
-          Request agent work
+          <MessageSquarePlus className='size-4' />
+          Create thread workspace
         </CardTitle>
       </CardHeader>
       <CardContent>
         <form onSubmit={submit} className='space-y-4'>
           <div className='grid gap-2'>
-            <Label htmlFor='agentPrompt'>Prompt</Label>
+            <Label htmlFor='threadPrompt'>Prompt</Label>
             <Textarea
-              id='agentPrompt'
+              id='threadPrompt'
               required
               minLength={12}
               value={prompt}

apps/next/tests/component/render.test.tsx

@@ -1,16 +1,27 @@
-import { render, screen } from '@testing-library/react';
+import { fireEvent, render, screen } from '@testing-library/react';
 import { describe, expect, it, vi } from 'vitest';
 
+import ThreadDetailPage from '../../src/app/(app)/threads/[threadId]/page';
+import { AgentThread } from '../../src/components/agent-workspace/agent-thread';
+import { extractFileDiff } from '../../src/components/agent-workspace/diff-utils';
 import { Hero } from '../../src/components/landing';
 import { NewSpoonForm } from '../../src/components/spoons/new-spoon-form';
 
+const { mockUseMutation, mockUseParams, mockUseQuery } = vi.hoisted(() => ({
+  mockUseMutation: vi.fn(),
+  mockUseParams: vi.fn(),
+  mockUseQuery: vi.fn(),
+}));
+
 vi.mock('convex/react', () => ({
   useConvexAuth: () => ({ isAuthenticated: false }),
-  useMutation: () => vi.fn(),
+  useMutation: mockUseMutation,
+  useQuery: mockUseQuery,
 }));
 
 vi.mock('next/navigation', () => ({
-  useRouter: () => ({ push: vi.fn() }),
+  useParams: mockUseParams,
+  useRouter: () => ({ push: vi.fn(), replace: vi.fn() }),
 }));
 
 vi.mock('sonner', () => ({
@@ -20,6 +31,12 @@ vi.mock('sonner', () => ({
   },
 }));
 
+vi.mock('@/components/agent-workspace/agent-workspace-shell', () => ({
+  AgentWorkspaceShell: ({ jobId }: { jobId: string }) => (
+    <div>workspace shell {jobId}</div>
+  ),
+}));
+
 describe('component test harness', () => {
   it('renders the Spoon landing headline', () => {
     render(<Hero />);
@@ -36,4 +53,94 @@ describe('component test harness', () => {
     expect(screen.getByLabelText(/upstream owner/i)).toBeInTheDocument();
     expect(screen.getByLabelText(/upstream repository/i)).toBeInTheDocument();
   });
+
+  it('extracts a single file diff from a workspace diff', () => {
+    const diff = [
+      'diff --git a/apps/web/auth.ts b/apps/web/auth.ts',
+      'index 123..456 100644',
+      '--- a/apps/web/auth.ts',
+      '+++ b/apps/web/auth.ts',
+      '@@ -1 +1 @@',
+      '-github',
+      '+authentik',
+      'diff --git a/README.md b/README.md',
+      '--- a/README.md',
+      '+++ b/README.md',
+      '@@ -1 +1 @@',
+      '-old',
+      '+new',
+    ].join('\n');
+
+    expect(extractFileDiff(diff, 'apps/web/auth.ts')).toContain('+authentik');
+    expect(extractFileDiff(diff, 'apps/web/auth.ts')).not.toContain(
+      'README.md',
+    );
+  });
+
+  it('renders workspace file activity and opens changed files', () => {
+    const onOpenFile = vi.fn();
+    const onOpenDiff = vi.fn();
+    render(
+      <AgentThread
+        jobId='job-1'
+        messages={[]}
+        events={[]}
+        interactions={[]}
+        workspaceChanges={[
+          {
+            _id: 'change-1',
+            _creationTime: 1,
+            jobId: 'job-1',
+            spoonId: 'spoon-1',
+            ownerId: 'user-1',
+            path: 'apps/web/auth.ts',
+            source: 'agent',
+            changeType: 'modified',
+            diff: 'diff --git a/apps/web/auth.ts b/apps/web/auth.ts\n+authentik',
+            createdAt: 1,
+          } as never,
+        ]}
+        disabled={false}
+        agentTurnActive={false}
+        onOpenFile={onOpenFile}
+        onOpenDiff={onOpenDiff}
+      />,
+    );
+
+    fireEvent.click(screen.getByRole('button', { name: 'Files' }));
+    expect(screen.getByText('apps/web/auth.ts')).toBeInTheDocument();
+    fireEvent.click(screen.getByRole('button', { name: 'View diff' }));
+    expect(onOpenDiff).toHaveBeenCalledWith('apps/web/auth.ts');
+    fireEvent.click(screen.getByRole('button', { name: 'Open' }));
+    expect(onOpenFile).toHaveBeenCalledWith('apps/web/auth.ts');
+  });
+
+  it('renders thread workspaces on the canonical thread route', () => {
+    mockUseParams.mockReturnValue({ threadId: 'thread-1' });
+    mockUseQuery.mockReturnValue({
+      thread: {
+        _id: 'thread-1',
+        title: 'Update auth',
+        status: 'running',
+        source: 'user_request',
+        priority: 'normal',
+        summary: 'Use Authentik',
+        createdAt: 1,
+        updatedAt: 1,
+      },
+      spoon: { _id: 'spoon-1', name: 'useSend' },
+      latestJob: {
+        _id: 'job-1',
+        spoonId: 'spoon-1',
+        status: 'running',
+        workspaceStatus: 'active',
+      },
+    });
+    mockUseMutation.mockReturnValue(vi.fn());
+
+    render(<ThreadDetailPage />);
+
+    expect(screen.getByText('workspace shell job-1')).toBeInTheDocument();
+    expect(screen.queryByText('Thread state')).not.toBeInTheDocument();
+  });
 });

apps/next/vitest.config.ts

@@ -1,13 +1,35 @@
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
 import { defineConfig } from 'vitest/config';
 
 import { jsdomProject, nodeProject } from '@spoon/vitest-config';
 
+const dirname = path.dirname(fileURLToPath(import.meta.url));
+const srcAlias = path.join(dirname, 'src');
+const withNextAlias = <T extends object>(project: T) => ({
+  ...project,
+  resolve: {
+    alias: {
+      '@': srcAlias,
+    },
+  },
+});
+
 export default defineConfig({
+  resolve: {
+    alias: {
+      '@': srcAlias,
+    },
+  },
   test: {
     projects: [
-      nodeProject('unit', ['tests/unit/**/*.test.{ts,tsx}']),
+      withNextAlias(nodeProject('unit', ['tests/unit/**/*.test.{ts,tsx}'])),
+      withNextAlias(
         nodeProject('integration', ['tests/integration/**/*.test.{ts,tsx}']),
+      ),
+      withNextAlias(
         jsdomProject('component', ['tests/component/**/*.test.{ts,tsx}']),
+      ),
     ],
   },
 });

packages/backend/convex/agentJobs.ts

@@ -160,6 +160,27 @@ const requireWorkerToken = (workerToken: string) => {
   if (workerToken !== expected) throw new ConvexError('Invalid worker token.');
 };
 
+const mergeMessageMetadata = (
+  metadata: string | undefined,
+  patch: Record<string, unknown>,
+) => {
+  if (!metadata) return JSON.stringify(patch);
+  try {
+    return JSON.stringify({ ...(JSON.parse(metadata) as object), ...patch });
+  } catch {
+    return JSON.stringify({ note: metadata, ...patch });
+  }
+};
+
+const parseMessageMetadata = (metadata: string | undefined) => {
+  if (!metadata) return null;
+  try {
+    return JSON.parse(metadata) as Record<string, unknown>;
+  } catch {
+    return null;
+  }
+};
+
 const slugify = (value: string) =>
   value
     .toLowerCase()
@@ -736,6 +757,7 @@ export const getWorkspaceUiState = query({
         activeFilePath: undefined,
         vimEnabled: false,
         expandedDirectoryPaths: [],
+        agentThreadWidth: 420,
         createdAt: Date.now(),
         updatedAt: Date.now(),
       }
@@ -750,6 +772,7 @@ export const patchWorkspaceUiState = mutation({
     activeFilePath: v.optional(v.string()),
     vimEnabled: v.optional(v.boolean()),
     expandedDirectoryPaths: v.optional(v.array(v.string())),
+    agentThreadWidth: v.optional(v.number()),
   },
   handler: async (ctx, args) => {
     const ownerId = await getRequiredUserId(ctx);
@@ -780,6 +803,14 @@ export const patchWorkspaceUiState = mutation({
             ),
           }
         : {}),
+      ...(args.agentThreadWidth !== undefined
+        ? {
+            agentThreadWidth: Math.min(
+              Math.max(Math.round(args.agentThreadWidth), 320),
+              720,
+            ),
+          }
+        : {}),
       updatedAt: now,
     };
     if (existing) {
@@ -794,6 +825,7 @@ export const patchWorkspaceUiState = mutation({
       activeFilePath: patch.activeFilePath,
       vimEnabled: patch.vimEnabled ?? false,
       expandedDirectoryPaths: patch.expandedDirectoryPaths ?? [],
+      agentThreadWidth: patch.agentThreadWidth ?? 420,
       createdAt: now,
       updatedAt: now,
     });
@@ -1537,7 +1569,9 @@ export const appendMessage = mutation({
         role: args.role,
         content: args.content,
         status: args.status,
-        metadata: args.metadata,
+        metadata: mergeMessageMetadata(args.metadata, {
+          agentJobMessageId: messageId,
+        }),
         createdAt: now,
         updatedAt: now,
       });
@@ -1570,6 +1604,32 @@ export const updateMessage = mutation({
     if (args.status !== undefined) patch.status = args.status;
     if (args.metadata !== undefined) patch.metadata = args.metadata;
     await ctx.db.patch(args.messageId, patch);
+    const threadId = job.threadId;
+    if (threadId) {
+      const threadMessages = await ctx.db
+        .query('threadMessages')
+        .withIndex('by_thread', (q) => q.eq('threadId', threadId))
+        .order('desc')
+        .take(300);
+      const mirrored = threadMessages.find(
+        (threadMessage) =>
+          parseMessageMetadata(threadMessage.metadata)?.agentJobMessageId ===
+          args.messageId,
+      );
+      if (mirrored) {
+        const threadPatch: Partial<Doc<'threadMessages'>> = {
+          updatedAt: patch.updatedAt,
+        };
+        if (args.content !== undefined) threadPatch.content = args.content;
+        if (args.status !== undefined) threadPatch.status = args.status;
+        if (args.metadata !== undefined) {
+          threadPatch.metadata = mergeMessageMetadata(args.metadata, {
+            agentJobMessageId: args.messageId,
+          });
+        }
+        await ctx.db.patch(mirrored._id, threadPatch);
+      }
+    }
     return { success: true };
   },
 });

packages/backend/convex/schema.ts

@@ -444,6 +444,7 @@ const applicationTables = {
     spoonId: v.id('spoons'),
     ownerId: v.id('users'),
     enabled: v.boolean(),
+    // Legacy records may contain openai_direct. New writes use opencode only.
     runtime: v.optional(
       v.union(v.literal('opencode'), v.literal('openai_direct')),
     ),
@@ -507,6 +508,7 @@ const applicationTables = {
       v.literal('timed_out'),
     ),
     prompt: v.string(),
+    // Legacy jobs may contain openai_direct. New jobs use opencode only.
     runtime: v.optional(
       v.union(v.literal('openai_direct'), v.literal('opencode')),
     ),
@@ -603,6 +605,7 @@ const applicationTables = {
     activeFilePath: v.optional(v.string()),
     vimEnabled: v.boolean(),
     expandedDirectoryPaths: v.array(v.string()),
+    agentThreadWidth: v.optional(v.number()),
     createdAt: v.number(),
     updatedAt: v.number(),
   })

packages/backend/convex/threads.ts

@@ -1,6 +1,7 @@
 import { ConvexError, v } from 'convex/values';
 
 import type { Doc } from './_generated/dataModel';
+import type { MutationCtx } from './_generated/server';
 import { internal } from './_generated/api';
 import {
   internalMutation,
@@ -68,6 +69,53 @@ const titleFromPrompt = (prompt: string) => {
 
 const publicThread = (thread: Doc<'threads'>) => thread;
 
+const isDeletableThreadJob = (job: Doc<'agentJobs'>) =>
+  ['failed', 'cancelled', 'timed_out', 'draft_pr_opened'].includes(
+    job.status,
+  ) || ['stopped', 'expired', 'failed'].includes(job.workspaceStatus ?? '');
+
+const deleteThreadJobRows = async (ctx: MutationCtx, job: Doc<'agentJobs'>) => {
+  const [messages, events, artifacts, changes, uiStates, interactions] =
+    await Promise.all([
+      ctx.db
+        .query('agentJobMessages')
+        .withIndex('by_job', (q) => q.eq('jobId', job._id))
+        .collect(),
+      ctx.db
+        .query('agentJobEvents')
+        .withIndex('by_job', (q) => q.eq('jobId', job._id))
+        .collect(),
+      ctx.db
+        .query('agentJobArtifacts')
+        .withIndex('by_job', (q) => q.eq('jobId', job._id))
+        .collect(),
+      ctx.db
+        .query('agentWorkspaceChanges')
+        .withIndex('by_job', (q) => q.eq('jobId', job._id))
+        .collect(),
+      ctx.db
+        .query('agentWorkspaceUiStates')
+        .withIndex('by_job', (q) => q.eq('jobId', job._id))
+        .collect(),
+      ctx.db
+        .query('agentInteractionRequests')
+        .withIndex('by_job', (q) => q.eq('jobId', job._id))
+        .collect(),
+    ]);
+
+  for (const row of [
+    ...messages,
+    ...events,
+    ...artifacts,
+    ...changes,
+    ...uiStates,
+    ...interactions,
+  ]) {
+    await ctx.db.delete(row._id);
+  }
+  await ctx.db.delete(job._id);
+};
+
 export const listMine = query({
   args: {
     status: v.optional(v.union(threadStatus, v.literal('all'))),
@@ -275,6 +323,42 @@ export const markResolved = mutation({
   },
 });
 
+export const deleteThread = mutation({
+  args: { threadId: v.id('threads') },
+  handler: async (ctx, { threadId }) => {
+    const ownerId = await getRequiredUserId(ctx);
+    const thread = await ctx.db.get(threadId);
+    if (thread?.ownerId !== ownerId) throw new ConvexError('Thread not found.');
+
+    const jobs = (
+      await ctx.db
+        .query('agentJobs')
+        .withIndex('by_owner', (q) => q.eq('ownerId', ownerId))
+        .collect()
+    ).filter((job) => job.threadId === threadId);
+
+    const activeJob = jobs.find((job) => !isDeletableThreadJob(job));
+    if (activeJob) {
+      throw new ConvexError(
+        'Stop or cancel active workspace runs before deleting this thread.',
+      );
+    }
+
+    const messages = await ctx.db
+      .query('threadMessages')
+      .withIndex('by_thread', (q) => q.eq('threadId', threadId))
+      .collect();
+    for (const job of jobs) {
+      await deleteThreadJobRows(ctx, job);
+    }
+    for (const message of messages) {
+      await ctx.db.delete(message._id);
+    }
+    await ctx.db.delete(threadId);
+    return { deletedJobs: jobs.length, deletedMessages: messages.length };
+  },
+});
+
 export const findOpenMaintenanceThread = internalQuery({
   args: {
     spoonId: v.id('spoons'),

packages/backend/tests/unit/harness.test.ts

@@ -48,6 +48,7 @@ const createAgentJob = async (
     spoonId: Id<'spoons'>;
     status: 'running' | 'failed' | 'cancelled';
     workspaceStatus?: 'active' | 'stopped' | 'failed' | 'expired';
+    threadId?: Id<'threads'>;
   },
 ) =>
   await t.mutation(async (ctx) => {
@@ -64,6 +65,7 @@ const createAgentJob = async (
       spoonId: args.spoonId,
       ownerId: args.ownerId,
       agentRequestId: requestId,
+      threadId: args.threadId,
       status: args.status,
       prompt: 'Clean this workspace',
       runtime: 'opencode',
@@ -299,6 +301,126 @@ describe('convex-test harness', () => {
     ).rejects.toThrow('Agent job not found.');
   });
 
+  test('persists and clamps workspace agent thread width', async () => {
+    const t = convexTest(schema, modules);
+    const ownerId = (await createUser(t, 'owner@example.com')) as Id<'users'>;
+    const spoonId = await authed(t, ownerId).mutation(
+      api.spoons.createManual,
+      spoonInput,
+    );
+    const jobId = await createAgentJob(t, {
+      ownerId,
+      spoonId,
+      status: 'running',
+      workspaceStatus: 'active',
+    });
+
+    const defaults = await authed(t, ownerId).query(
+      api.agentJobs.getWorkspaceUiState,
+      { jobId },
+    );
+    expect(defaults.agentThreadWidth).toBe(420);
+
+    await authed(t, ownerId).mutation(api.agentJobs.patchWorkspaceUiState, {
+      jobId,
+      agentThreadWidth: 999,
+    });
+    const wide = await authed(t, ownerId).query(
+      api.agentJobs.getWorkspaceUiState,
+      { jobId },
+    );
+    expect(wide.agentThreadWidth).toBe(720);
+
+    await authed(t, ownerId).mutation(api.agentJobs.patchWorkspaceUiState, {
+      jobId,
+      agentThreadWidth: 100,
+    });
+    const narrow = await authed(t, ownerId).query(
+      api.agentJobs.getWorkspaceUiState,
+      { jobId },
+    );
+    expect(narrow.agentThreadWidth).toBe(320);
+  });
+
+  test('deletes terminal threads and attached terminal workspace rows', async () => {
+    const t = convexTest(schema, modules);
+    const ownerId = (await createUser(t, 'owner@example.com')) as Id<'users'>;
+    const spoonId = await authed(t, ownerId).mutation(
+      api.spoons.createManual,
+      spoonInput,
+    );
+    const threadId = await t.mutation(async (ctx) => {
+      return await ctx.db.insert('threads', {
+        ownerId,
+        spoonId,
+        title: 'Failed attempt',
+        source: 'user_request',
+        status: 'failed',
+        priority: 'normal',
+        createdAt: Date.now(),
+        updatedAt: Date.now(),
+      });
+    });
+    const jobId = await createAgentJob(t, {
+      ownerId,
+      spoonId,
+      threadId,
+      status: 'failed',
+      workspaceStatus: 'failed',
+    });
+    await t.mutation(async (ctx) => {
+      await ctx.db.patch(threadId, { latestAgentJobId: jobId });
+    });
+
+    await authed(t, ownerId).mutation(api.threads.deleteThread, { threadId });
+
+    const [thread, job, messages] = await t.run(async (ctx) => {
+      const rows = await ctx.db
+        .query('agentJobMessages')
+        .withIndex('by_job', (q) => q.eq('jobId', jobId))
+        .collect();
+      return [await ctx.db.get(threadId), await ctx.db.get(jobId), rows];
+    });
+    expect(thread).toBeNull();
+    expect(job).toBeNull();
+    expect(messages).toHaveLength(0);
+  });
+
+  test('does not delete threads with active workspace runs', async () => {
+    const t = convexTest(schema, modules);
+    const ownerId = (await createUser(t, 'owner@example.com')) as Id<'users'>;
+    const spoonId = await authed(t, ownerId).mutation(
+      api.spoons.createManual,
+      spoonInput,
+    );
+    const threadId = await t.mutation(async (ctx) => {
+      return await ctx.db.insert('threads', {
+        ownerId,
+        spoonId,
+        title: 'Active attempt',
+        source: 'user_request',
+        status: 'running',
+        priority: 'normal',
+        createdAt: Date.now(),
+        updatedAt: Date.now(),
+      });
+    });
+    const jobId = await createAgentJob(t, {
+      ownerId,
+      spoonId,
+      threadId,
+      status: 'running',
+      workspaceStatus: 'active',
+    });
+    await t.mutation(async (ctx) => {
+      await ctx.db.patch(threadId, { latestAgentJobId: jobId });
+    });
+
+    await expect(
+      authed(t, ownerId).mutation(api.threads.deleteThread, { threadId }),
+    ).rejects.toThrow('Stop or cancel active workspace runs');
+  });
+
   test('queues a new thread job after the previous job is terminal', async () => {
     const t = convexTest(schema, modules);
     const ownerId = (await createUser(t, 'owner@example.com')) as Id<'users'>;

turbo.json

@@ -39,6 +39,7 @@
     "SPOON_AGENT_JOB_IMAGE",
     "SPOON_AGENT_RUNTIME",
     "SPOON_AGENT_CONTAINER_RUNTIME",
+    "SPOON_AGENT_CONTAINER_VOLUME_OPTIONS",
     "SPOON_CONTAINER_RUNTIME",
     "SPOON_AGENT_CONTAINER_ACCESS",
     "SPOON_AGENT_LOCAL_WORKDIR",