diff --git a/.project-docs/30-worklog/tasks/20260901-conversation-abort-stall-6f4c2a91.md b/.project-docs/30-worklog/tasks/20260901-conversation-abort-stall-6f4c2a91.md
new file mode 100644
index 0000000..af1b238
--- /dev/null
+++ b/.project-docs/30-worklog/tasks/20260901-conversation-abort-stall-6f4c2a91.md
@@ -0,0 +1,54 @@
+# Task: Fix running conversation abort stall
+
+## Identity
+
+- Task ID: 20260901-conversation-abort-stall-6f4c2a91
+- Mode: Feature
+- Branch: codex/20260901-conversation-abort-stall-6f4c2a91-conversation-abort-stall
+- Worktree: D:\Datas\OthersProjects\makelore-conversation-abort-stall-6f4c2a91
+- Base commit: 143aaec3d6770dd263bf1e418e89bf722989caef
+- Owner: codex-root
+- Status: Completed
+
+## Scope
+
+- Diagnose the installed 1.2.1 state where a Conversation continued to render as running and neither visible abort entry point unlocked the UI.
+- Correlate the screenshot with privacy-safe Main lifecycle and Pi Session metadata, then reproduce the stale-Renderer state at the public Chat seam.
+- Make both the Header and Composer abort actions reconcile the authoritative Conversation Snapshot after the abort request completes.
+- Add focused Renderer regression coverage and extend the existing Electron E2E fixture for a missed terminal SSE patch.
+
+## Intent And Constraints
+
+- Preserve ADR-006: Pi `0.84.2` remains the sole production runtime and Electron Main remains the only Pi/Host API authority.
+- Do not replay accepted or uncertain work, change the abort RPC/Host API contract, add polling, or introduce a fallback/compatibility path.
+- Treat the visible running state as evidence to investigate, not proof that the bash subprocess or Pi turn is still active.
+- Keep the change at the existing Renderer Host API boundary and use the existing target-only Snapshot recovery semantics.
+- Work only in the isolated feature worktree; do not modify the occupied `main` worktree or the completed 1.2.1 packaging task.
+
+## Outcome
+
+- Confirmed the screenshot was from installed Makelore 1.2.1. The affected Pi JSONL Session recorded three bash tool results and a final assistant `stop` by 14:55:35, while the 14:59 screenshot still rendered the earlier bash call as executing. Main later stopped the already-idle logical thread through background sleep, so the supported incident was stale Renderer state rather than an indefinitely running curl process.
+- Reproduced the defect with a focused Chat test: the UI held a running Snapshot, the abort request succeeded against an already-terminal authority, but `getCodingConversationSnapshot` remained at one call and the UI stayed on `中止生成`.
+- Added one shared `abortConversation` path in `CodingChatPanel`: after the existing POST abort completes, it silently reloads that Conversation's authoritative Snapshot. Both the Header `中止` button and Composer `中止生成` button now use this path.
+- Kept error ownership in the existing controls: Header action failures remain local to Header, while Composer failures remain scoped to the originating draft/Conversation.
+- Updated the Electron E2E host fixture so a deliberately missed terminal SSE patch becomes an authoritative aborted Snapshot only after the user clicks abort; the test now proves both abort controls disappear and runtime settings unlock after reconciliation.
+
+## Verification
+
+- Red regression before the fix: `tests/unit/coding-chat-panel.test.tsx` failed because the Snapshot API was called once instead of twice after abort.
+- `pnpm exec vitest run tests/unit/coding-chat-panel.test.tsx tests/unit/coding-feature-ui.test.tsx tests/unit/coding-conversations-facade.test.ts tests/unit/pi-conversation-runtime.test.ts tests/unit/pi-worker-pool-process-integration.test.ts` passed: 5 files, 35 tests.
+- `pnpm run typecheck` passed.
+- Scoped ESLint over the two product files and three changed test files passed with no findings.
+- `pnpm run build:vite` passed for Renderer, Electron Main, Preload, and release utility bundles; only existing bundle-size/dynamic-import warnings were reported.
+- `pnpm exec playwright test tests/e2e/pi-coding-first-chat.spec.ts --grep "PI feature UI"` passed: 1/1 Electron E2E.
+- `pnpm test` passed: 215 files / 1780 tests, 2 skipped, plus the isolated pressure test 1/1.
+- `pnpm run lint:check` completed with 0 errors and 5 existing warnings in `src/pages/Home/index.tsx` and `src/pages/Makelore/index.tsx`; no warning is in a changed file.
+- `git diff --check` passed.
+
+## Follow-ups
+
+- A new Windows installer must be built and installed before claiming the user's installed app contains this fix. Do not overwrite or relabel the already-built 1.2.1 artifact with changed source under the same version.
+
+## Promotion Candidates
+
+- None. This fix enforces the existing abort/terminal convergence and Snapshot recovery contracts without changing architecture or product direction.
diff --git a/src/pages/Chat/CodingChatPanel.tsx b/src/pages/Chat/CodingChatPanel.tsx
index 0e46119..1770f85 100644
--- a/src/pages/Chat/CodingChatPanel.tsx
+++ b/src/pages/Chat/CodingChatPanel.tsx
@@ -170,6 +170,10 @@ export function CodingChatPanel({
     ? `new:${activeProject.id}:${selectedAgent.id}`
     : null;
   const draftKey = targetConversationId ?? provisionalDraftKey;
+  const abortConversation = useCallback(async (conversationId: string) => {
+    await abortCodingConversation(conversationId);
+    await loadConversationSnapshot(conversationId, 'silent');
+  }, [loadConversationSnapshot]);
   const promptMode = draftKey ? modesByDraftKey[draftKey] ?? 'prompt' : 'prompt';
   const provisionalDraft = provisionalDraftKey ? provisionalDrafts[provisionalDraftKey] ?? '' : '';
   const submissionError = draftKey ? submissionErrors[draftKey] ?? null : null;
@@ -598,6 +602,9 @@ export function CodingChatPanel({
           onRename={async (title) => {
             if (targetConversationId) await patchConversation(targetConversationId, { title });
           }}
+          onAbort={async () => {
+            if (targetConversationId) await abortConversation(targetConversationId);
+          }}
           onRecover={async () => {
             if (targetConversationId) await recoverConversation(targetConversationId);
           }}
@@ -698,13 +705,15 @@ export function CodingChatPanel({
           onSubmit={handleSubmit}
           onAbort={() => {
             if (!targetConversationId) return;
-            void abortCodingConversation(targetConversationId).catch((error) => {
-              if (!draftKey) return;
-              setSubmissionErrors((current) => ({
-                ...current,
-                [draftKey]: localSubmissionError(error),
-              }));
-            });
+            const conversationId = targetConversationId;
+            void abortConversation(conversationId)
+              .catch((error) => {
+                if (!draftKey) return;
+                setSubmissionErrors((current) => ({
+                  ...current,
+                  [draftKey]: localSubmissionError(error),
+                }));
+              });
           }}
           onRecover={() => {
             if (targetConversationId) {
diff --git a/src/pages/Chat/CodingConversationHeader.tsx b/src/pages/Chat/CodingConversationHeader.tsx
index 77f5336..522d399 100644
--- a/src/pages/Chat/CodingConversationHeader.tsx
+++ b/src/pages/Chat/CodingConversationHeader.tsx
@@ -16,7 +16,6 @@ import {
   DialogTitle,
 } from '@/components/ui/dialog';
 import { Input } from '@/components/ui/input';
-import { abortCodingConversation } from '@/lib/coding-conversations';
 import { cn } from '@/lib/utils';
 import { useSettingsStore } from '@/stores/settings';
 import type { ConversationSnapshot } from '@/types/coding-conversation';
@@ -54,11 +53,13 @@ export function CodingConversationHeader({
   conversation,
   snapshot,
   onRename,
+  onAbort,
   onRecover,
 }: {
   conversation: CodingConversationMetadata | null;
   snapshot: ConversationSnapshot | null;
   onRename(title: string): Promise<void>;
+  onAbort(): Promise<void>;
   onRecover(): Promise<void>;
 }) {
   const sidebarCollapsed = useSettingsStore((state) => state.sidebarCollapsed);
@@ -128,7 +129,7 @@ export function CodingConversationHeader({
           disabled={Boolean(busyAction) || !conversation}
           aria-label="中止"
           title="中止"
-          onClick={() => perform('abort', async () => abortCodingConversation(conversation!.id))}
+          onClick={() => perform('abort', onAbort)}
         >
           {busyAction === 'abort'
             ? <LoaderCircle className="h-4 w-4 animate-spin" aria-hidden="true" />
diff --git a/tests/e2e/pi-coding-first-chat.spec.ts b/tests/e2e/pi-coding-first-chat.spec.ts
index b8fad8d..4d2d899 100644
--- a/tests/e2e/pi-coding-first-chat.spec.ts
+++ b/tests/e2e/pi-coding-first-chat.spec.ts
@@ -63,6 +63,7 @@ async function installCodingFirstChatHost(
       captured: CapturedRequest[];
       conversationCreated: boolean;
       interactionAnswered: boolean;
+      abortRequested: boolean;
       releaseSnapshot: (() => void) | null;
       snapshotPending: boolean;
     };
@@ -73,6 +74,7 @@ async function installCodingFirstChatHost(
       captured: [],
       conversationCreated: false,
       interactionAnswered: false,
+      abortRequested: false,
       releaseSnapshot: null,
       snapshotPending: false,
     };
@@ -470,9 +472,44 @@ async function installCodingFirstChatHost(
           state.snapshotPending = false;
         }
         return respond({
-          snapshot: state.interactionAnswered
-            ? { ...snapshot, pendingInteractions: [] }
-            : snapshot,
+          snapshot: state.abortRequested
+            ? {
+                ...snapshot,
+                nodes: snapshot.nodes.map((node) => {
+                  if (node.kind === 'message' && node.role === 'assistant') {
+                    return {
+                      ...node,
+                      status: 'aborted',
+                      blocks: node.blocks.map((block) => ({ ...block, status: 'complete' })),
+                    };
+                  }
+                  if (node.kind === 'subagent') {
+                    return {
+                      ...node,
+                      details: {
+                        ...node.details,
+                        tasks: node.details.tasks.map((task) => (
+                          task.status === 'running' ? { ...task, status: 'aborted' } : task
+                        )),
+                      },
+                    };
+                  }
+                  return node;
+                }),
+                run: {
+                  status: 'idle',
+                  runId: 'run-e2e-feature',
+                  mode: 'prompt',
+                  settledAt: 12_000,
+                  terminalReason: 'aborted',
+                },
+                queue: { items: [] },
+                pendingInteractions: [],
+                cursor: { workerGeneration: 1, seq: 1 },
+              }
+            : state.interactionAnswered
+              ? { ...snapshot, pendingInteractions: [] }
+              : snapshot,
         });
       }
       if (path === `/api/coding/conversations/${secondConversation.id}/snapshot`) {
@@ -489,7 +526,11 @@ async function installCodingFirstChatHost(
           },
         }, 202);
       }
-      if (/^\/api\/coding\/conversations\/[^/]+\/(abort|compact|recover)$/.test(path) && method === 'POST') {
+      if (/^\/api\/coding\/conversations\/[^/]+\/abort$/.test(path) && method === 'POST') {
+        state.abortRequested = true;
+        return respond({});
+      }
+      if (/^\/api\/coding\/conversations\/[^/]+\/(compact|recover)$/.test(path) && method === 'POST') {
         return respond({});
       }
       if (/^\/api\/coding\/conversations\/[^/]+\/model$/.test(path) && method === 'POST') {
@@ -795,6 +836,9 @@ test('PI feature UI isolates Conversations and exposes queue, interaction, model
     await expect(runtimeSettings).not.toHaveClass(/bg-surface-subtle\/75/);
     await expect(runtimeSettings).toBeDisabled();
     await page.getByRole('button', { name: '中止', exact: true }).click();
+    await expect(page.getByRole('button', { name: '中止', exact: true })).toHaveCount(0);
+    await expect(composer.getByRole('button', { name: '中止生成' })).toHaveCount(0);
+    await expect(runtimeSettings).toBeEnabled();
 
     const builderConversations = page.getByRole('group', { name: 'Builder 的对话' });
     await expect(builderConversations).toBeVisible();
@@ -806,6 +850,7 @@ test('PI feature UI isolates Conversations and exposes queue, interaction, model
     await expect(page.getByText('本地编程运行时暂时不可用')).toHaveCount(0);
     await builderConversations.getByRole('button', { name: /^新对话/ }).click();
     await expect(page.getByText('Durable user fork source')).toBeVisible();
+    await page.getByTestId('coding-process-group').locator('summary').first().click();
     await expect(page.getByText('Durable assistant response')).toBeVisible();
     await expect(page.getByRole('button', { name: '从这里创建新对话分支' })).toHaveCount(1);
     await builderConversations.getByRole('button', { name: 'Second Conversation' }).click();
diff --git a/tests/unit/coding-chat-panel.test.tsx b/tests/unit/coding-chat-panel.test.tsx
index 5e5bf7d..b22b4e0 100644
--- a/tests/unit/coding-chat-panel.test.tsx
+++ b/tests/unit/coding-chat-panel.test.tsx
@@ -695,6 +695,45 @@ describe('CodingChatPanel first Conversation', () => {
     expect(screen.getByRole('button', { name: '发送' })).toBeEnabled();
   });
 
+  it('refreshes the authoritative Snapshot after abort when the terminal SSE patch was missed', async () => {
+    projectApi.list.mockResolvedValue({ projects: [project], activeProjectId: project.id });
+    projectApi.config.mockResolvedValue({ project, config });
+    projectApi.conversations.mockResolvedValue([conversation]);
+    conversationApi.events.mockResolvedValue(new FakeEventSource() as unknown as EventSource);
+    conversationApi.recover.mockResolvedValue(undefined);
+    conversationApi.abort.mockResolvedValue(undefined);
+    const { CodingChatPanel } = await import('@/pages/Chat/CodingChatPanel');
+    const { createLocalConversationSnapshot } = await import('@/pages/Chat/coding-chat-snapshot');
+    const runningSnapshot: ConversationSnapshot = {
+      ...createLocalConversationSnapshot(project.id, conversation),
+      worker: { status: 'ready', generation: 1 },
+      run: { status: 'running', runId: 'run-stale', mode: 'prompt' },
+      cursor: { workerGeneration: 1, seq: 7 },
+    };
+    const settledSnapshot: ConversationSnapshot = {
+      ...runningSnapshot,
+      run: {
+        status: 'idle',
+        runId: 'run-stale',
+        mode: 'prompt',
+        settledAt: 12_000,
+        terminalReason: 'completed',
+      },
+      cursor: { workerGeneration: 1, seq: 8 },
+    };
+    conversationApi.snapshot
+      .mockResolvedValueOnce(runningSnapshot)
+      .mockResolvedValueOnce(settledSnapshot);
+    render(<CodingChatPanel />);
+
+    const abortButton = await screen.findByRole('button', { name: '中止生成' });
+    fireEvent.click(abortButton);
+
+    await waitFor(() => expect(conversationApi.abort).toHaveBeenCalledWith(conversation.id));
+    await waitFor(() => expect(conversationApi.snapshot).toHaveBeenCalledTimes(2));
+    expect(await screen.findByRole('button', { name: '发送' })).toBeInTheDocument();
+  });
+
   it('caps one message at 16 images and uploads at most four concurrently', async () => {
     projectApi.list.mockResolvedValue({ projects: [project], activeProjectId: project.id });
     projectApi.config.mockResolvedValue({ project, config });
diff --git a/tests/unit/coding-feature-ui.test.tsx b/tests/unit/coding-feature-ui.test.tsx
index fbe9e6c..984b194 100644
--- a/tests/unit/coding-feature-ui.test.tsx
+++ b/tests/unit/coding-feature-ui.test.tsx
@@ -219,6 +219,7 @@ describe('PI-130 feature-complete Coding UI', () => {
           conversation={null}
           snapshot={null}
           onRename={vi.fn(async () => undefined)}
+          onAbort={vi.fn(async () => undefined)}
           onRecover={vi.fn(async () => undefined)}
         />
       </>,
@@ -367,6 +368,7 @@ describe('PI-130 feature-complete Coding UI', () => {
     interactionApi.thinking.mockResolvedValue({ model: null, modelResolution: 'required' });
     const callbacks = {
       rename: vi.fn(async () => undefined),
+      abort: vi.fn(async () => undefined),
       refresh: vi.fn(async () => undefined),
       recover: vi.fn(async () => undefined),
     };
@@ -410,6 +412,7 @@ describe('PI-130 feature-complete Coding UI', () => {
           conversation={conversation}
           snapshot={snapshot}
           onRename={callbacks.rename}
+          onAbort={callbacks.abort}
           onRecover={callbacks.recover}
         />
         <CodingComposer
@@ -635,6 +638,7 @@ describe('PI-130 feature-complete Coding UI', () => {
           conversation={conversation}
           snapshot={snapshot}
           onRename={vi.fn(async () => undefined)}
+          onAbort={async () => interactionApi.abort('conversation-uncertain')}
           onRecover={recover}
         />
         <CodingComposerRuntimeControls