✨ feat(vscode): 新增第五种工单会话「原型会话」

照测试会话那条链路补一份 prototype：

- 消息与路由：session/start-prototype、session/resume-prototype、
  issue/update-prototype-profile-path，都进只读门禁
- 会话：handleStartPrototypeSession / handleResumePrototypeSession，
  终端名 issue-N-原型；cwd 有 worktree 用 worktree、没有退主仓库根
  （原 resolveTestSessionCwd 改名 resolveWorktreeOrRootCwd 两种会话共用）
- 不要求有 PR，任何阶段都能起；前置工单锁仍然拦
- 提示词：新增 prompts/prototype.md，设置里可改，占位符 {issueNumber}
- profile：工单级 prototypeProfilePath > 设置里的原型默认 profile >
  内置默认，与其它会话互不回退
- 状态字段 prototypeSessionId / prototypeProfilePath / prototypeTabOpen
  贯通 gitea、youtrack、本机 state 与移交包
- 详情面板加「原型会话id」「原型配置文件」两行，设置面板加对应两项

Claude-Session: https://claude.ai/code/session_01Kgmb1LvrPmFX3NoUDB4zZC

vscode/src/cc/handoffManifest.ts

@@ -1,15 +1,17 @@
-export type ClaudeSessionKind = 'brainstorm' | 'implement' | 'test'
+export type ClaudeSessionKind = 'brainstorm' | 'implement' | 'test' | 'prototype'
 
 export const CLAUDE_SESSION_FIELDS = [
   { field: 'sessionId', kind: 'brainstorm' },
   { field: 'implementSessionId', kind: 'implement' },
   { field: 'testSessionId', kind: 'test' },
-] as const satisfies ReadonlyArray<{ field: 'sessionId' | 'implementSessionId' | 'testSessionId', kind: ClaudeSessionKind }>
+  { field: 'prototypeSessionId', kind: 'prototype' },
+] as const satisfies ReadonlyArray<{ field: 'sessionId' | 'implementSessionId' | 'testSessionId' | 'prototypeSessionId', kind: ClaudeSessionKind }>
 
 export interface HandoffSessions {
   sessionId?: string
   implementSessionId?: string
   testSessionId?: string
+  prototypeSessionId?: string
   reviewSessionId?: string
 }
 
@@ -17,6 +19,7 @@ export interface HandoffProfiles {
   profilePath?: string
   brainstormProfilePath?: string
   testProfilePath?: string
+  prototypeProfilePath?: string
 }
 
 export interface HandoffManifest {
@@ -38,7 +41,7 @@ export function handoffAttachmentName(issueNumber: number): string {
   return `spx-handoff-issue-${issueNumber}.tgz`
 }
 
-const KINDS: ReadonlySet<string> = new Set<ClaudeSessionKind>(['brainstorm', 'implement', 'test'])
+const KINDS: ReadonlySet<string> = new Set<ClaudeSessionKind>(['brainstorm', 'implement', 'test', 'prototype'])
 
 // Claude / Codex 会话 id 都是 UUID；顺手挡掉路径穿越（如 `../x`）之类的伪造条目。
 const UUID_RE = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i
@@ -80,13 +83,13 @@ export function parseHandoffManifest(json: string, expectedIssue: number): Hando
     return { id, relPath }
   })
   const sessions: HandoffSessions = {}
-  for (const k of ['sessionId', 'implementSessionId', 'testSessionId', 'reviewSessionId'] as const) {
+  for (const k of ['sessionId', 'implementSessionId', 'testSessionId', 'prototypeSessionId', 'reviewSessionId'] as const) {
     const v = optString(sessionsRaw[k])
     if (v)
       sessions[k] = v
   }
   const profiles: HandoffProfiles = {}
-  for (const k of ['profilePath', 'brainstormProfilePath', 'testProfilePath'] as const) {
+  for (const k of ['profilePath', 'brainstormProfilePath', 'testProfilePath', 'prototypeProfilePath'] as const) {
     const v = optString(profilesRaw[k])
     if (v)
       profiles[k] = v

vscode/src/cc/prompts.ts

@@ -59,6 +59,14 @@ export function getTestPrompt(ctx: ExtensionContext, vars: { issueNumber: number
     .join(vars.prRef)
 }
 
+/**
+ * 原型会话首个提示词。只认工单号——原型是照工单正文画界面，与 PR / 分支无关。
+ */
+export function getPrototypePrompt(ctx: ExtensionContext, vars: { issueNumber: number, issueRef?: string }): string {
+  const tpl = getSettings(ctx).prototypePrompt
+  return tpl.split('{issueNumber}').join(vars.issueRef ?? String(vars.issueNumber))
+}
+
 export function getReviewPrompt(ctx: ExtensionContext, vars: { prNumber: string }): string {
   const tpl = getSettings(ctx).reviewPrompt
   return tpl.split('{prNumber}').join(vars.prNumber)

vscode/src/gitea/issueLoader.ts

@@ -70,6 +70,7 @@ function parseColumnFromComments(comments: GiteaComment[]): {
   profilePath?: string
   brainstormProfilePath?: string
   testProfilePath?: string
+  prototypeProfilePath?: string
   specFile?: string
   planFile?: string
   prDiffFile?: string
@@ -82,6 +83,7 @@ function parseColumnFromComments(comments: GiteaComment[]): {
   implementSessionId?: string
   reviewSessionId?: string
   testSessionId?: string
+  prototypeSessionId?: string
   color?: string
   autoReview?: boolean
   handoffAttachmentId?: string
@@ -116,6 +118,7 @@ function parseColumnFromComments(comments: GiteaComment[]): {
       profilePath?: unknown
       brainstormProfilePath?: unknown
       testProfilePath?: unknown
+      prototypeProfilePath?: unknown
       specFile?: unknown
       planFile?: unknown
       prDiffFile?: unknown
@@ -128,6 +131,7 @@ function parseColumnFromComments(comments: GiteaComment[]): {
       implementSessionId?: unknown
       reviewSessionId?: unknown
       testSessionId?: unknown
+      prototypeSessionId?: unknown
       color?: unknown
       autoReview?: unknown
       handoffAttachmentId?: unknown
@@ -146,6 +150,9 @@ function parseColumnFromComments(comments: GiteaComment[]): {
       const testProfilePath = typeof obj.testProfilePath === 'string' && obj.testProfilePath.length > 0
         ? obj.testProfilePath
         : undefined
+      const prototypeProfilePath = typeof obj.prototypeProfilePath === 'string' && obj.prototypeProfilePath.length > 0
+        ? obj.prototypeProfilePath
+        : undefined
       const specFile = isValidSpxFilePath(obj.specFile) ? obj.specFile : undefined
       const planFile = isValidSpxFilePath(obj.planFile) ? obj.planFile : undefined
       const prDiffFile = isValidPrDiffFilePath(obj.prDiffFile) ? obj.prDiffFile : undefined
@@ -176,6 +183,9 @@ function parseColumnFromComments(comments: GiteaComment[]): {
       const testSessionId = typeof obj.testSessionId === 'string' && obj.testSessionId.length > 0
         ? obj.testSessionId
         : undefined
+      const prototypeSessionId = typeof obj.prototypeSessionId === 'string' && obj.prototypeSessionId.length > 0
+        ? obj.prototypeSessionId
+        : undefined
       const color = typeof obj.color === 'string' && obj.color.length > 0
         ? obj.color
         : undefined
@@ -192,6 +202,7 @@ function parseColumnFromComments(comments: GiteaComment[]): {
         profilePath,
         brainstormProfilePath,
         testProfilePath,
+        prototypeProfilePath,
         specFile,
         planFile,
         prDiffFile,
@@ -204,6 +215,7 @@ function parseColumnFromComments(comments: GiteaComment[]): {
         implementSessionId,
         reviewSessionId,
         testSessionId,
+        prototypeSessionId,
         color,
         autoReview,
         handoffAttachmentId,
@@ -333,6 +345,7 @@ async function buildIssue(opts: {
     profilePath,
     brainstormProfilePath,
     testProfilePath,
+    prototypeProfilePath,
     specFile,
     planFile,
     prDiffFile,
@@ -345,6 +358,7 @@ async function buildIssue(opts: {
     implementSessionId,
     reviewSessionId,
     testSessionId,
+    prototypeSessionId,
     color,
     autoReview,
     handoffAttachmentId,
@@ -395,6 +409,7 @@ async function buildIssue(opts: {
     ...(profilePath ? { profilePath } : {}),
     ...(brainstormProfilePath ? { brainstormProfilePath } : {}),
     ...(testProfilePath ? { testProfilePath } : {}),
+    ...(prototypeProfilePath ? { prototypeProfilePath } : {}),
     ...(specFile ? { specFile } : {}),
     ...(planFile ? { planFile } : {}),
     ...(prDiffFile ? { prDiffFile } : {}),
@@ -408,6 +423,7 @@ async function buildIssue(opts: {
     ...(implementSessionId ? { implementSessionId } : {}),
     ...(reviewSessionId ? { reviewSessionId } : {}),
     ...(testSessionId ? { testSessionId } : {}),
+    ...(prototypeSessionId ? { prototypeSessionId } : {}),
     ...(prerequisite !== undefined ? { prerequisite } : {}),
     ...(color ? { color } : {}),
     ...(autoReview !== undefined ? { autoReview } : {}),

vscode/src/gitea/stateJson.ts

@@ -19,7 +19,7 @@ import { listIssueComments, postIssueComment } from './api'
  * 普通文本评论、审查评论、Gitea 自动关联评论都不含这些字段，因此从尾往前
  * 扫描时会被跳过，避免它们插队后下一次 merge 从空状态开始丢历史。
  */
-const KNOWN_STATE_FIELDS = ['column', 'sessionId', 'implementSessionId', 'reviewSessionId', 'testSessionId', 'profilePath', 'brainstormProfilePath', 'testProfilePath', 'specFile', 'planFile', 'prDiffFile', 'pr', 'prMerged', 'prMergedAt', 'branch', 'worktreePath', 'implementStatus', 'color', 'autoReview', 'handoffAttachmentId', 'handoffFrom'] as const
+const KNOWN_STATE_FIELDS = ['column', 'sessionId', 'implementSessionId', 'reviewSessionId', 'testSessionId', 'prototypeSessionId', 'profilePath', 'brainstormProfilePath', 'testProfilePath', 'prototypeProfilePath', 'specFile', 'planFile', 'prDiffFile', 'pr', 'prMerged', 'prMergedAt', 'branch', 'worktreePath', 'implementStatus', 'color', 'autoReview', 'handoffAttachmentId', 'handoffFrom'] as const
 
 /**
  * body 能 parse 成 object 且含至少一个已知 state 字段 → 认为是 state JSON。

vscode/src/gitea/types.ts

@@ -45,6 +45,8 @@ export interface Issue {
   brainstormProfilePath?: string
   /** 测试会话专用的 Claude 配置文件；空 = DEFAULT_PROFILE_PATH，不回退其它字段。 */
   testProfilePath?: string
+  /** 原型会话专用的 Claude 配置文件；空 = DEFAULT_PROFILE_PATH，不回退其它字段。 */
+  prototypeProfilePath?: string
   /**
    * Optional workspace-relative path to the spec file for this issue, as
    * surfaced from the Claude session transcript. Lives under
@@ -100,6 +102,11 @@ export interface Issue {
    * is merged; reused for resume from the detail panel.
    */
   testSessionId?: string
+  /**
+   * 原型会话（Claude Code session id）。详情面板点原型会话行的 ▶ 启动后写入，
+   * 之后该行改为可 resume。与 PR 无关，任何阶段都能起。
+   */
+  prototypeSessionId?: string
   /** Browser URL to the Gitea issue page (escape hatch button in the UI). */
   htmlUrl: string
   /** 前置任务 issue number (Gitea dependencies 取第一个) */
@@ -132,4 +139,6 @@ export interface Issue {
   reviewTabOpen?: boolean
   /** Whether the test terminal tab is currently alive in this VS Code window. */
   testTabOpen?: boolean
+  /** Whether the prototype terminal tab is currently alive in this VS Code window. */
+  prototypeTabOpen?: boolean
 }

vscode/src/issues/localState.ts

@@ -17,9 +17,11 @@ export const LOCAL_STATE_FIELDS = [
   'implementSessionId',
   'reviewSessionId',
   'testSessionId',
+  'prototypeSessionId',
   'profilePath',
   'brainstormProfilePath',
   'testProfilePath',
+  'prototypeProfilePath',
   'worktreePath',
   'prDiffFile',
 ] as const

vscode/src/panel/KanbanPanel.ts

@@ -7,6 +7,7 @@ import type {
 import type { HookContext } from '../git/worktreeHooks'
 import type { Issue } from '../gitea/types'
 import type { IssueRef } from '../issues/stateRouter'
+import type { SessionTabKind } from './handlers/terminals'
 import type { IssueOwnershipFacts } from './issueOwnership'
 import type { KanbanScope } from './kanbanScope'
 import type { ExtensionToWebview, WebviewToExtension } from './messages'
@@ -164,7 +165,7 @@ export class KanbanWebviewPanel {
    * Map 更易于 inspect / debug。条目数顶天就是当前活跃 tab 数，无压力。
    */
   // internal: handler 模块访问
-  readonly terminalOrigin = new Map<Terminal, { issueNumber: number, kind: 'brainstorm' | 'implement' | 'review' | 'test' }>()
+  readonly terminalOrigin = new Map<Terminal, { issueNumber: number, kind: SessionTabKind }>()
 
   /**
    * 防 handleResumeSession/handleResumeReviewSession 在 await 钩子/终端创建期间被重入触发，
@@ -296,7 +297,7 @@ export class KanbanWebviewPanel {
         const origin = this.terminalOrigin.get(closed)
         // 反查 terminalOrigin 给详情面板推 *TabOpen: false，让关闭按钮消失。
         this.untrackClosedTerminal(closed)
-        if (origin?.kind === 'implement' || origin?.kind === 'test')
+        if (origin?.kind === 'implement' || origin?.kind === 'test' || origin?.kind === 'prototype')
           void this.dispatchImplTabPostCloseAsync(origin.issueNumber)
         // 冲突解决会话不进 terminalOrigin，按终端名触发 post-close 钩子。
         const conflictMatch = closed.name.match(/^issue-(\d+)-冲突解决/)
@@ -451,6 +452,14 @@ export class KanbanWebviewPanel {
       void sessions.handleResumeTestSession(this, msg.sessionId, msg.issueNumber, msg.cwd)
       return
     }
+    if (msg.type === 'session/start-prototype') {
+      void sessions.handleStartPrototypeSession(this, msg.issueNumber)
+      return
+    }
+    if (msg.type === 'session/resume-prototype') {
+      void sessions.handleResumePrototypeSession(this, msg.sessionId, msg.issueNumber, msg.cwd)
+      return
+    }
     if (msg.type === 'editor/open-file') {
       void issues.handleOpenFile(this, msg.path)
       return
@@ -550,6 +559,10 @@ export class KanbanWebviewPanel {
       void issues.handleUpdateTestProfilePath(this, msg.issueNumber, msg.testProfilePath)
       return
     }
+    if (msg.type === 'issue/update-prototype-profile-path') {
+      void issues.handleUpdatePrototypeProfilePath(this, msg.issueNumber, msg.prototypeProfilePath)
+      return
+    }
     if (msg.type === 'logs/fetch') {
       this.postMessage({ type: 'logs/snapshot', entries: logger.snapshot() })
       return
@@ -989,6 +1002,7 @@ export class KanbanWebviewPanel {
         autoReview: s.autoReview,
         reviewPrompt: s.reviewPrompt,
         testPrompt: s.testPrompt,
+        prototypePrompt: s.prototypePrompt,
         devBranch: s.devBranch,
         releaseBranchPrefix: s.releaseBranchPrefix,
         jenkinsJob: s.jenkinsJob,
@@ -1004,6 +1018,7 @@ export class KanbanWebviewPanel {
         defaultBrainstormProfilePath: s.defaultBrainstormProfilePath,
         defaultImplementProfilePath: s.defaultImplementProfilePath,
         defaultTestProfilePath: s.defaultTestProfilePath,
+        defaultPrototypeProfilePath: s.defaultPrototypeProfilePath,
         conflictResolutionProfilePath: s.conflictResolutionProfilePath,
         commitProfilePath: await getEffectiveCommitProfilePath(this.context),
         prDiffSummaryProfilePath: await getEffectivePrDiffSummaryProfilePath(this.context),
@@ -1078,6 +1093,7 @@ export class KanbanWebviewPanel {
           autoReview: s.autoReview,
           reviewPrompt: s.reviewPrompt,
           testPrompt: s.testPrompt,
+          prototypePrompt: s.prototypePrompt,
           devBranch: s.devBranch,
           releaseBranchPrefix: s.releaseBranchPrefix,
           jenkinsJob: s.jenkinsJob,
@@ -1093,6 +1109,7 @@ export class KanbanWebviewPanel {
           defaultBrainstormProfilePath: s.defaultBrainstormProfilePath,
           defaultImplementProfilePath: s.defaultImplementProfilePath,
           defaultTestProfilePath: s.defaultTestProfilePath,
+          defaultPrototypeProfilePath: s.defaultPrototypeProfilePath,
           conflictResolutionProfilePath: s.conflictResolutionProfilePath,
           commitProfilePath: await getEffectiveCommitProfilePath(this.context),
           prDiffSummaryProfilePath: await getEffectivePrDiffSummaryProfilePath(this.context),
@@ -1202,7 +1219,7 @@ export class KanbanWebviewPanel {
   trackSessionTerminal(
     terminal: Terminal,
     issueNumber: number,
-    kind: 'brainstorm' | 'implement' | 'review' | 'test',
+    kind: SessionTabKind,
   ): void {
     terminals.trackSessionTerminal(this, terminal, issueNumber, kind)
   }

vscode/src/panel/handlers/handoff.test.ts

@@ -63,15 +63,17 @@ describe('payloads', () => {
       handoffFrom: 'chw',
     })
   })
-  it('本机墓碑：keepWorktreePath=false 时九个本机字段全清', () => {
+  it('本机墓碑：keepWorktreePath=false 时本机字段全清', () => {
     expect(handoffLocalTombstones({ keepWorktreePath: false })).toEqual({
       sessionId: '',
       implementSessionId: '',
       reviewSessionId: '',
       testSessionId: '',
+      prototypeSessionId: '',
       profilePath: '',
       brainstormProfilePath: '',
       testProfilePath: '',
+      prototypeProfilePath: '',
       worktreePath: '',
       prDiffFile: '',
     })
@@ -84,9 +86,11 @@ describe('payloads', () => {
       implementSessionId: '',
       reviewSessionId: '',
       testSessionId: '',
+      prototypeSessionId: '',
       profilePath: '',
       brainstormProfilePath: '',
       testProfilePath: '',
+      prototypeProfilePath: '',
       prDiffFile: '',
     })
   })
@@ -99,9 +103,11 @@ describe('payloads', () => {
       implementSessionId: null,
       reviewSessionId: null,
       testSessionId: null,
+      prototypeSessionId: null,
       profilePath: null,
       brainstormProfilePath: null,
       testProfilePath: null,
+      prototypeProfilePath: null,
       prDiffFile: null,
       worktreePath: null,
       worktreeExists: false,
@@ -119,9 +125,11 @@ describe('payloads', () => {
       implementSessionId: null,
       reviewSessionId: null,
       testSessionId: null,
+      prototypeSessionId: null,
       profilePath: null,
       brainstormProfilePath: null,
       testProfilePath: null,
+      prototypeProfilePath: null,
       prDiffFile: null,
     })
   })

vscode/src/panel/handlers/handoff.ts

@@ -71,9 +71,11 @@ export function handoffStartedUiPatch(attachmentId: number, from: string, to: st
     implementSessionId: null,
     reviewSessionId: null,
     testSessionId: null,
+    prototypeSessionId: null,
     profilePath: null,
     brainstormProfilePath: null,
     testProfilePath: null,
+    prototypeProfilePath: null,
     prDiffFile: null,
     // worktree 没删掉时（opts.keepWorktreePath）不碰这两个字段，让 UI 继续显示孤儿 worktree。
     ...(opts.keepWorktreePath ? {} : { worktreePath: null, worktreeExists: false }),

vscode/src/panel/handlers/handoffFlow.ts

@@ -181,12 +181,14 @@ export async function handleHandoffStart(panel: KanbanWebviewPanel, issueNumber:
       ...(str(state.sessionId) ? { sessionId: str(state.sessionId) } : {}),
       ...(str(state.implementSessionId) ? { implementSessionId: str(state.implementSessionId) } : {}),
       ...(str(state.testSessionId) ? { testSessionId: str(state.testSessionId) } : {}),
+      ...(str(state.prototypeSessionId) ? { prototypeSessionId: str(state.prototypeSessionId) } : {}),
       ...(str(state.reviewSessionId) ? { reviewSessionId: str(state.reviewSessionId) } : {}),
     }
     const profiles: HandoffProfiles = {
       ...(str(state.profilePath) ? { profilePath: str(state.profilePath) } : {}),
       ...(str(state.brainstormProfilePath) ? { brainstormProfilePath: str(state.brainstormProfilePath) } : {}),
       ...(str(state.testProfilePath) ? { testProfilePath: str(state.testProfilePath) } : {}),
+      ...(str(state.prototypeProfilePath) ? { prototypeProfilePath: str(state.prototypeProfilePath) } : {}),
     }
 
     // ① worktree 守卫：干净 + 与远端一致。worktree 存在但 state 没有 branch 时

vscode/src/panel/handlers/issues.ts

@@ -117,6 +117,7 @@ export async function handleColumnChange(panel: KanbanWebviewPanel, issueNumber:
   let fromColumn: IssueColumn | undefined
   let implementSessionId: string | undefined
   let testSessionId: string | undefined
+  let prototypeSessionId: string | undefined
   let featureBranchFromState: string | undefined
   try {
     const stateObj = await panel.readIssueState(issueNumber)
@@ -134,6 +135,8 @@ export async function handleColumnChange(panel: KanbanWebviewPanel, issueNumber:
       implementSessionId = stateObj.implementSessionId
     if (typeof stateObj.testSessionId === 'string' && stateObj.testSessionId.length > 0)
       testSessionId = stateObj.testSessionId
+    if (typeof stateObj.prototypeSessionId === 'string' && stateObj.prototypeSessionId.length > 0)
+      prototypeSessionId = stateObj.prototypeSessionId
     if (typeof stateObj.branch === 'string' && stateObj.branch.length > 0)
       featureBranchFromState = stateObj.branch
   }
@@ -394,13 +397,13 @@ export async function handleColumnChange(panel: KanbanWebviewPanel, issueNumber:
     issueNumber,
   })
 
-  // 删 worktree 前把实施/测试会话整包（jsonl + 子目录）搬到主仓库 projects 目录，
+  // 删 worktree 前把实施/测试/原型会话整包（jsonl + 子目录）搬到主仓库 projects 目录，
   // 并清掉 worktree 侧副本：新版 claude 遇到重复 sid 会拒绝 resume。
-  if ((implementSessionId || testSessionId) && worktreePath) {
+  if ((implementSessionId || testSessionId || prototypeSessionId) && worktreePath) {
     const worktreeAbs = resolveWorktreePath(worktreePath, workspaceRoot)
     const srcProjectsDir = projectsDirFor(worktreeAbs)
     const dstProjectsDir = projectsDirFor(workspaceRoot)
-    for (const sid of [implementSessionId, testSessionId]) {
+    for (const sid of [implementSessionId, testSessionId, prototypeSessionId]) {
       if (typeof sid !== 'string' || sid.length === 0)
         continue
       try {
@@ -2210,6 +2213,95 @@ export async function handleUpdateTestProfilePath(panel: KanbanWebviewPanel, iss
   }
 }
 
+/**
+ * Persist a per-issue `prototypeProfilePath` override into the issue's state JSON
+ * comment. 原型 start/resume 用它（见 resolvePrototypeProfilePath）；
+ * 空 = 设置里的「原型默认配置文件」，再空 = getDefaultProfilePath()，与其它会话互不回退。
+ */
+export async function handleUpdatePrototypeProfilePath(panel: KanbanWebviewPanel, issueNumber: number, prototypeProfilePath: string): Promise<void> {
+  const workspaceRoot = workspace.workspaceFolders?.[0]?.uri.fsPath
+  if (!workspaceRoot) {
+    panel.postMessage({
+      type: 'toast/show',
+      id: makeNonce(),
+      level: 'error',
+      message: '请先打开一个工作区文件夹',
+      dismissOnTimer: 5000,
+    })
+    return
+  }
+
+  const remote = await detectRepo(workspaceRoot)
+  if (!remote) {
+    panel.postMessage({
+      type: 'toast/show',
+      id: makeNonce(),
+      level: 'error',
+      message: '当前工作区没有 Gitea 远程仓库',
+      dismissOnTimer: 5000,
+    })
+    return
+  }
+
+  const token = await getToken(panel.context, remote.host)
+  if (!token) {
+    panel.postMessage({
+      type: 'toast/show',
+      id: makeNonce(),
+      level: 'error',
+      message: '请先完成 Gitea 配置',
+      dismissOnTimer: 5000,
+    })
+    return
+  }
+
+  // Snapshot the previous value so we can roll the webview back on failure
+  // without re-broadcasting the whole issues list.
+  let previousValue: string | undefined
+  try {
+    const existingState = await panel.readIssueState(issueNumber)
+    previousValue = typeof existingState.prototypeProfilePath === 'string'
+      ? existingState.prototypeProfilePath
+      : undefined
+  }
+  catch {
+    // If we can't read the previous state, leave previousValue undefined —
+    // the rollback patch will clear the override, falling back to the default.
+    previousValue = undefined
+  }
+
+  try {
+    await panel.mergeIssueState(issueNumber, { prototypeProfilePath })
+    logger.add({
+      level: 'info',
+      source: 'panel',
+      message: `工单 #${issueNumber} prototypeProfilePath=${prototypeProfilePath} 已持久化`,
+    })
+  }
+  catch (err) {
+    const message = err instanceof Error ? err.message : String(err)
+    logger.add({
+      level: 'error',
+      source: 'panel',
+      message: `持久化 prototypeProfilePath 失败 (issue #${issueNumber})`,
+      details: message,
+    })
+    panel.postMessage({
+      type: 'toast/show',
+      id: makeNonce(),
+      level: 'error',
+      message: `保存工单 #${issueNumber} 原型配置文件失败: ${message}`,
+      dismissOnTimer: 6000,
+    })
+    // Roll back the optimistic update in the webview.
+    panel.postMessage({
+      type: 'issue/patch',
+      issueNumber,
+      patch: { prototypeProfilePath: previousValue },
+    })
+  }
+}
+
 export async function handleOpenFile(panel: KanbanWebviewPanel, relPath: string): Promise<void> {
   const workspaceRoot = workspace.workspaceFolders?.[0]?.uri.fsPath
   if (!workspaceRoot) {

vscode/src/panel/handlers/sessions.ts

@@ -13,7 +13,7 @@ import { buildCcCommand } from '../../cc/ccCommand'
 import { buildCodexCommandString } from '../../cc/codexCommand'
 import { watchForNewCodexSession } from '../../cc/codexSessionWatcher'
 import { resolveProfilePath } from '../../cc/profiles'
-import { getBrainstormContinuePrompt, getImplementPlanPrompt, getReviewPrompt, getTestPrompt } from '../../cc/prompts'
+import { getBrainstormContinuePrompt, getImplementPlanPrompt, getPrototypePrompt, getReviewPrompt, getTestPrompt } from '../../cc/prompts'
 import { projectsDirFor, watchForNewSession } from '../../cc/sessionWatcher'
 import { detectRepo } from '../../git/remote'
 import { ensureWorktree, resolveWorktreePath } from '../../git/worktree'
@@ -1156,7 +1156,7 @@ export async function handleStartTestSession(panel: KanbanWebviewPanel, issueNum
     }
 
     // worktree 还在（PR 未合并/未清理）就进 worktree 测，已清理则回退主 worktree（main）。
-    const effectiveCwd = await resolveTestSessionCwd(workspaceRoot, worktreePathRel)
+    const effectiveCwd = await resolveWorktreeOrRootCwd(workspaceRoot, worktreePathRel)
     const inWorktree = effectiveCwd !== workspaceRoot
 
     // 主 worktree（已合并）测试要靠 tea 了解合并进来的改动，故必须有 PR；
@@ -1368,7 +1368,7 @@ export async function handleResumeTestSession(panel: KanbanWebviewPanel, session
             branchForHook = stateObj.branch
           if (typeof stateObj?.testProfilePath === 'string' && stateObj.testProfilePath.length > 0)
             testProfilePath = stateObj.testProfilePath
-          effectiveCwd = await resolveTestSessionCwd(workspaceRoot, worktreePathRel)
+          effectiveCwd = await resolveWorktreeOrRootCwd(workspaceRoot, worktreePathRel)
         }
         catch (err) {
           logger.add({
@@ -1439,6 +1439,297 @@ export async function handleResumeTestSession(panel: KanbanWebviewPanel, session
   }
 }
 
+/**
+ * 启动一个「原型」cc 会话：详情面板点原型会话行的 ▶，开一个 claude tab 让 cc
+ * 照工单正文画界面原型。
+ *
+ * 与测试会话的差异：原型只吃工单正文，不依赖 PR，任何阶段都能起；其余（cwd
+ * 回退、profile 解析、pre-create 钩子、session id 回写）与测试会话同构。
+ *
+ * in-flight 锁 key `${issueNumber}:prototype`，防 createTerminal 期间重复点击。
+ */
+export async function handleStartPrototypeSession(panel: KanbanWebviewPanel, issueNumber: number): Promise<void> {
+  const lockKey = `${issueNumber}:prototype`
+  if (panel.resumeInFlight.has(lockKey)) {
+    logger.add({
+      level: 'info',
+      source: 'panel',
+      message: `start-prototype #${issueNumber} 已在进行中，忽略重入`,
+    })
+    return
+  }
+  panel.resumeInFlight.add(lockKey)
+
+  try {
+    const terminalName = `issue-${issueNumber}-原型`
+    const existing = panel.findExistingTerminal(terminalName)
+    if (existing) {
+      panel.trackSessionTerminal(existing, issueNumber, 'prototype')
+      existing.show(false)
+      logger.add({
+        level: 'info',
+        source: 'panel',
+        message: `复用已有原型终端 #${issueNumber}，跳过 cc 启动`,
+      })
+      return
+    }
+
+    const workspaceRoot = workspace.workspaceFolders?.[0]?.uri.fsPath
+    if (!workspaceRoot) {
+      void window.showErrorMessage('请先打开一个工作区文件夹')
+      return
+    }
+    const remote = await detectRepo(workspaceRoot)
+    if (!remote) {
+      void window.showErrorMessage('当前工作区没有 Gitea 远程仓库')
+      return
+    }
+    const token = await getToken(panel.context, remote.host)
+    if (!token) {
+      void window.showErrorMessage('请先完成 Gitea 配置')
+      return
+    }
+
+    const lockCheck = await panel.resolveLockedReason(issueNumber)
+    if (lockCheck.locked) {
+      void window.showWarningMessage(`等待前置工单 #${lockCheck.prerequisiteNumber} 完成`)
+      return
+    }
+
+    let prototypeProfilePath: string | undefined
+    let worktreePathRel: string | undefined
+    let branch: string | undefined
+    try {
+      const stateObj = await panel.readIssueState(issueNumber)
+      if (stateObj) {
+        if (typeof stateObj.prototypeProfilePath === 'string' && stateObj.prototypeProfilePath.length > 0)
+          prototypeProfilePath = stateObj.prototypeProfilePath
+        if (typeof stateObj.worktreePath === 'string' && stateObj.worktreePath.length > 0)
+          worktreePathRel = stateObj.worktreePath
+        if (typeof stateObj.branch === 'string' && stateObj.branch.length > 0)
+          branch = stateObj.branch
+      }
+    }
+    catch (err) {
+      logger.add({
+        level: 'warn',
+        source: 'panel',
+        message: `读取 #${issueNumber} state JSON 失败，无法启动原型会话`,
+        details: err instanceof Error ? err.message : String(err),
+      })
+    }
+
+    // worktree 还在就进 worktree 画，已清理则退回主 worktree。
+    const effectiveCwd = await resolveWorktreeOrRootCwd(workspaceRoot, worktreePathRel)
+
+    // 原型会话只用 prototypeProfilePath；空 = DEFAULT，不回退其它会话 profile。
+    const effectiveProfilePath = resolvePrototypeProfilePath(panel, prototypeProfilePath)
+    if (effectiveProfilePath.includes('\'')) {
+      void window.showErrorMessage(
+        `启动原型失败：prototypeProfilePath 含单引号，拒绝执行 (${effectiveProfilePath})`,
+      )
+      return
+    }
+
+    const prompt = getPrototypePrompt(panel.context, { issueNumber })
+    if (prompt.includes('\'')) {
+      void window.showErrorMessage('启动原型失败：prompt 含单引号，拒绝执行')
+      return
+    }
+
+    // Ensure the projects dir exists so the watcher can't miss the create
+    // event. cwd 决定 claude session jsonl 落在哪个 projects 子目录下。
+    const projDir = projectsDirFor(effectiveCwd)
+    try {
+      await fsp.mkdir(projDir, { recursive: true })
+    }
+    catch (err) {
+      console.warn('[superpowers] failed to mkdir claude projects dir:', err)
+    }
+
+    // Kick off the watcher before spawning the terminal so we don't race.
+    const watchPromise = watchForNewSession({ projectsDir: projDir, timeoutMs: 120_000 })
+
+    // 原型 cc tab 创建前钩子，与实施/测试会话共用同一钩子（impl-tab-pre-create）。
+    // 顶部「复用已有原型终端」的 fast path 已早 return，复用不会执行到这里。
+    const settings = getSettings(panel.context)
+    await panel.dispatchWorktreeHook('impl-tab-pre-create', {
+      workspaceRoot,
+      worktreePath: effectiveCwd,
+      branch: branch ?? '',
+      issueNumber,
+      mainBranch: settings.devBranch || 'main',
+      customScriptPath: settings.implTabPreCreateScript,
+    })
+
+    const { themeColor, iconUri } = await panel.resolveIssueIcon(issueNumber)
+    const terminal = window.createTerminal({
+      name: terminalName,
+      cwd: effectiveCwd,
+      location: panel.resolveTerminalLocation(false),
+      iconPath: iconUri,
+      color: themeColor,
+    })
+    panel.trackSessionTerminal(terminal, issueNumber, 'prototype')
+    terminal.show(false)
+    logger.add({
+      level: 'info',
+      source: 'terminal',
+      message: `已创建终端 "${terminal.name}"`,
+    })
+
+    const cmd = buildCcCommand({ profilePath: effectiveProfilePath, prompt })
+    terminal.sendText(cmd)
+    logger.add({
+      level: 'info',
+      source: 'panel',
+      message: `已发送原型 prompt 到终端 #${issueNumber}`,
+    })
+
+    // Fire-and-forget: when the session jsonl materializes, persist the id as
+    // the issue's `prototypeSessionId` so the X / resume button toggles.
+    watchPromise.then(async (sid) => {
+      if (!sid) {
+        logger.add({
+          level: 'warn',
+          source: 'panel',
+          message: '原型会话监听超时 (120s)',
+        })
+        return
+      }
+      logger.add({
+        level: 'info',
+        source: 'panel',
+        message: `已捕获原型会话 ${sid}`,
+      })
+      try {
+        await panel.mergeIssueState(issueNumber, { prototypeSessionId: sid })
+        panel.postMessage({
+          type: 'issue/patch',
+          issueNumber,
+          patch: { prototypeSessionId: sid },
+        })
+      }
+      catch (err) {
+        console.warn('[superpowers] failed to persist prototypeSessionId:', err)
+      }
+    }).catch((err) => {
+      console.warn('[superpowers] prototype session watch failed:', err)
+    })
+
+    void window.showInformationMessage(`已启动 #${issueNumber} 原型会话`)
+  }
+  finally {
+    panel.resumeInFlight.delete(lockKey)
+  }
+}
+
+/**
+ * 恢复一个已存在的原型 cc 会话：详情面板点原型会话行（prototypeTabOpen=false 时）
+ * 触发。终端名 `issue-${N}-原型`、命令 `claude ... --resume ${sessionId}`。
+ *
+ * cwd 与 start 对称：worktree 还在就进 worktree（claude 的会话 jsonl 按 cwd 分目录，
+ * 走错目录就找不到这条会话），已清理才退回主 worktree。
+ * in-flight 锁 key `${issueNumber}:prototype`。
+ */
+export async function handleResumePrototypeSession(panel: KanbanWebviewPanel, sessionId: string, issueNumber: number, _relCwd?: string): Promise<void> {
+  const lockKey = `${issueNumber}:prototype`
+  if (panel.resumeInFlight.has(lockKey)) {
+    logger.add({
+      level: 'info',
+      source: 'panel',
+      message: `resume #${issueNumber}/prototype 已在进行中，忽略重入`,
+    })
+    return
+  }
+  panel.resumeInFlight.add(lockKey)
+
+  try {
+    const workspaceRoot = workspace.workspaceFolders?.[0]?.uri.fsPath
+    let effectiveCwd = workspaceRoot
+    // 顺带读出 branch 给 impl-tab-pre-create 钩子用；读不到就空字符串。
+    let branchForHook = ''
+    let prototypeProfilePath: string | undefined
+    if (workspaceRoot) {
+      const remote = await detectRepo(workspaceRoot)
+      const token = remote ? await getToken(panel.context, remote.host) : undefined
+      if (remote && token) {
+        try {
+          const stateObj = await panel.readIssueState(issueNumber)
+          const worktreePathRel = typeof stateObj?.worktreePath === 'string' ? stateObj.worktreePath : undefined
+          if (stateObj && typeof stateObj.branch === 'string')
+            branchForHook = stateObj.branch
+          if (typeof stateObj?.prototypeProfilePath === 'string' && stateObj.prototypeProfilePath.length > 0)
+            prototypeProfilePath = stateObj.prototypeProfilePath
+          effectiveCwd = await resolveWorktreeOrRootCwd(workspaceRoot, worktreePathRel)
+        }
+        catch (err) {
+          logger.add({
+            level: 'warn',
+            source: 'panel',
+            message: `读取 #${issueNumber} state JSON 失败，原型会话回退主 worktree 恢复`,
+            details: err instanceof Error ? err.message : String(err),
+          })
+        }
+      }
+    }
+
+    // --settings 决定 provider/model/鉴权，resume 也必须与 start 一致解析 profile。
+    const effectiveProfilePath = resolvePrototypeProfilePath(panel, prototypeProfilePath)
+    if (effectiveProfilePath.includes('\'')) {
+      void window.showErrorMessage(
+        `resume 失败：prototypeProfilePath 含单引号，拒绝执行 (${effectiveProfilePath})`,
+      )
+      return
+    }
+
+    const terminalName = `issue-${issueNumber}-原型`
+    const existingByName = panel.findExistingTerminal(terminalName)
+    if (existingByName) {
+      panel.trackSessionTerminal(existingByName, issueNumber, 'prototype')
+      existingByName.show(false)
+      return
+    }
+
+    // 回退主 worktree 时不触发 pre-create——主 worktree 不该被 pycharm 指向，
+    // 与实施 / 测试 resume 一致。
+    if (effectiveCwd !== workspaceRoot && workspaceRoot) {
+      const settings = getSettings(panel.context)
+      await panel.dispatchWorktreeHook('impl-tab-pre-create', {
+        workspaceRoot,
+        worktreePath: effectiveCwd!,
+        branch: branchForHook,
+        issueNumber,
+        mainBranch: settings.devBranch || 'main',
+        customScriptPath: settings.implTabPreCreateScript,
+      })
+    }
+
+    const { themeColor, iconUri } = await panel.resolveIssueIcon(issueNumber)
+    const terminal = window.createTerminal({
+      name: terminalName,
+      cwd: effectiveCwd,
+      location: panel.resolveTerminalLocation(false),
+      iconPath: iconUri,
+      color: themeColor,
+    })
+    panel.trackSessionTerminal(terminal, issueNumber, 'prototype')
+    terminal.show(false)
+    logger.add({
+      level: 'info',
+      source: 'terminal',
+      message: `已创建原型会话终端 #${issueNumber} cwd=${effectiveCwd}`,
+    })
+
+    const cmd = buildCcCommand({ profilePath: effectiveProfilePath, resumeSessionId: sessionId })
+    terminal.sendText(cmd)
+  }
+  finally {
+    panel.resumeInFlight.delete(lockKey)
+    panel.postMessage({ type: 'session/tab-settled', sessionId })
+  }
+}
+
 /**
  * 当 done 列的 PR merge 因冲突失败时调用：在主 workspace 检出 feature 分支
  * 并 merge dev 让冲突落地到 working tree，然后启一个临时 cc 会话让 cc 解决
@@ -1696,13 +1987,25 @@ export function resolveTestProfilePath(panel: KanbanWebviewPanel, testProfilePat
 }
 
 /**
- * 测试会话的工作目录：worktree 还在就用 worktree，已清理则回退主 worktree。
+ * 原型会话 profile：工单级 `prototypeProfilePath` > 设置里的「原型默认配置文件」
+ * > DEFAULT。与其它三种会话互不回退。
+ */
+export function resolvePrototypeProfilePath(panel: KanbanWebviewPanel, prototypeProfilePath: string | undefined): string {
+  return resolveProfilePath(
+    prototypeProfilePath?.trim()
+    || getSettings(panel.context).defaultPrototypeProfilePath.trim()
+    || undefined,
+  )
+}
+
+/**
+ * 测试 / 原型会话的工作目录：worktree 还在就用 worktree，已清理则回退主 worktree。
  *
  * @param workspaceRoot 主 worktree 绝对路径
  * @param worktreePathRel state JSON 里的 worktree 相对路径（可空）
  * @returns 实际用作终端 cwd 的绝对路径
  */
-async function resolveTestSessionCwd(workspaceRoot: string, worktreePathRel?: string): Promise<string> {
+async function resolveWorktreeOrRootCwd(workspaceRoot: string, worktreePathRel?: string): Promise<string> {
   if (worktreePathRel) {
     const abs = resolveWorktreePath(worktreePathRel, workspaceRoot)
     try {

vscode/src/panel/handlers/settings.ts

@@ -28,6 +28,7 @@ export async function handleSettingsSave(panel: KanbanWebviewPanel, payload: {
   autoReview: boolean
   reviewPrompt: string
   testPrompt: string
+  prototypePrompt: string
   devBranch: string
   releaseBranchPrefix: string
   jenkinsJob: string
@@ -43,6 +44,7 @@ export async function handleSettingsSave(panel: KanbanWebviewPanel, payload: {
   defaultBrainstormProfilePath: string
   defaultImplementProfilePath: string
   defaultTestProfilePath: string
+  defaultPrototypeProfilePath: string
   conflictResolutionProfilePath: string
   commitProfilePath: string
   prDiffSummaryProfilePath: string
@@ -78,10 +80,11 @@ export async function handleSettingsSave(panel: KanbanWebviewPanel, payload: {
   const trimmedPreRemove = payload.worktreePreRemoveScript.trim()
   const trimmedImplPre = payload.implTabPreCreateScript.trim()
   const trimmedImplPost = payload.implTabPostCloseScript.trim()
-  // 三个会话默认 profile：'' 有意义（= 落到 DEFAULT_PROFILE_PATH），只 trim。
+  // 四个会话默认 profile：'' 有意义（= 落到 DEFAULT_PROFILE_PATH），只 trim。
   const trimmedDefaultBrainstormProfile = payload.defaultBrainstormProfilePath.trim()
   const trimmedDefaultImplementProfile = payload.defaultImplementProfilePath.trim()
   const trimmedDefaultTestProfile = payload.defaultTestProfilePath.trim()
+  const trimmedDefaultPrototypeProfile = payload.defaultPrototypeProfilePath.trim()
   // conflict-resolution profile: '' is meaningful (= DEFAULT_PROFILE_PATH).
   const trimmedConflictProfile = payload.conflictResolutionProfilePath.trim()
   // 提交代码 profile：'' 有意义（= 未配置 → 提交严格失败），只 trim。
@@ -115,6 +118,7 @@ export async function handleSettingsSave(panel: KanbanWebviewPanel, payload: {
       autoReview: payload.autoReview,
       reviewPrompt: payload.reviewPrompt || prev.reviewPrompt,
       testPrompt: payload.testPrompt || prev.testPrompt,
+      prototypePrompt: payload.prototypePrompt || prev.prototypePrompt,
       devBranch: trimmedDevBranch || prev.devBranch,
       releaseBranchPrefix: trimmedReleasePrefix || prev.releaseBranchPrefix,
       jenkinsJob: trimmedJenkinsJob,
@@ -130,6 +134,7 @@ export async function handleSettingsSave(panel: KanbanWebviewPanel, payload: {
       defaultBrainstormProfilePath: trimmedDefaultBrainstormProfile,
       defaultImplementProfilePath: trimmedDefaultImplementProfile,
       defaultTestProfilePath: trimmedDefaultTestProfile,
+      defaultPrototypeProfilePath: trimmedDefaultPrototypeProfile,
       conflictResolutionProfilePath: trimmedConflictProfile,
       commitProfilePath: trimmedCommitProfile,
       prDiffSummaryProfilePath: trimmedPrDiffSummaryProfile,
@@ -148,6 +153,7 @@ export async function handleSettingsSave(panel: KanbanWebviewPanel, payload: {
     autoReview: payload.autoReview,
     reviewPrompt: payload.reviewPrompt,
     testPrompt: payload.testPrompt,
+    prototypePrompt: payload.prototypePrompt,
     devBranch: trimmedDevBranch,
     releaseBranchPrefix: trimmedReleasePrefix,
     jenkinsJob: trimmedJenkinsJob,
@@ -163,6 +169,7 @@ export async function handleSettingsSave(panel: KanbanWebviewPanel, payload: {
     defaultBrainstormProfilePath: trimmedDefaultBrainstormProfile,
     defaultImplementProfilePath: trimmedDefaultImplementProfile,
     defaultTestProfilePath: trimmedDefaultTestProfile,
+    defaultPrototypeProfilePath: trimmedDefaultPrototypeProfile,
     conflictResolutionProfilePath: trimmedConflictProfile,
     commitProfilePath: trimmedCommitProfile,
     prDiffSummaryProfilePath: trimmedPrDiffSummaryProfile,
@@ -258,6 +265,7 @@ export async function handleEditSettingsRequest(panel: KanbanWebviewPanel): Prom
     autoReview: s.autoReview,
     reviewPrompt: s.reviewPrompt,
     testPrompt: s.testPrompt,
+    prototypePrompt: s.prototypePrompt,
     devBranch: s.devBranch,
     releaseBranchPrefix: s.releaseBranchPrefix,
     jenkinsJob: s.jenkinsJob,
@@ -273,6 +281,7 @@ export async function handleEditSettingsRequest(panel: KanbanWebviewPanel): Prom
     defaultBrainstormProfilePath: s.defaultBrainstormProfilePath,
     defaultImplementProfilePath: s.defaultImplementProfilePath,
     defaultTestProfilePath: s.defaultTestProfilePath,
+    defaultPrototypeProfilePath: s.defaultPrototypeProfilePath,
     conflictResolutionProfilePath: s.conflictResolutionProfilePath,
     commitProfilePath,
     prDiffSummaryProfilePath,

vscode/src/panel/handlers/terminals.ts

@@ -9,6 +9,9 @@ import { logger } from '../../logging/logger'
 import { getSettings } from '../../settings/store'
 import { existingTerminalGroupColumn, terminalEditorColumn } from '../terminalColumn'
 
+/** 一个工单能开的会话终端种类；每种对应详情面板里的一行会话 id。 */
+export type SessionTabKind = 'brainstorm' | 'implement' | 'review' | 'test' | 'prototype'
+
 export function resolveTerminalLocation(panel: KanbanWebviewPanel | null, preserveFocus: boolean): TerminalEditorLocationOptions {
   if (!panel) {
     return {
@@ -155,13 +158,14 @@ export function handleSessionFocus(panel: KanbanWebviewPanel, issueNumber: numbe
       newIssueTerm.show(true)
     return
   }
-  // Priority 1-4: 实施 > 规划 > 审查 > 测试. Match by terminal.name since we know
-  // the convention (issue-${N}-实施 / issue-${N}-规划 / issue-${N}-审查 / issue-${N}-测试).
+  // Priority 1-5: 实施 > 规划 > 审查 > 测试 > 原型. Match by terminal.name since we
+  // know the convention (issue-${N}-实施 / -规划 / -审查 / -测试 / -原型).
   const namePriority = [
     `issue-${issueNumber}-实施`,
     `issue-${issueNumber}-规划`,
     `issue-${issueNumber}-审查`,
     `issue-${issueNumber}-测试`,
+    `issue-${issueNumber}-原型`,
   ]
   for (const name of namePriority) {
     const term = findExistingTerminal(panel, name)
@@ -181,12 +185,12 @@ export function handleSessionFocus(panel: KanbanWebviewPanel, issueNumber: numbe
  * 解析 issueNumber 并通知 webview 选中对应工单。去重与回声抑制由调用方的
  * `FocusedTerminalTracker` 负责，这里每次调用都视为一次真实切换。
  *
- * 终端名按 `issue-${N}-(规划|实施|审查|测试)` 命名；`issue-new-${nonce}-...`
+ * 终端名按 `issue-${N}-(规划|实施|审查|测试|原型)` 命名；`issue-new-${nonce}-...`
  * 是新建工单流程的占位 tab，没有 issue number，跳过。
  */
 export function handleActiveTerminalChanged(panel: KanbanWebviewPanel, terminal: Terminal): void {
-  // Primary: `issue-${N}-(规划|实施|审查|测试)` — the steady-state naming.
-  const m = terminal.name.match(/^issue-(\d+)-(规划|实施|审查|测试)/)
+  // Primary: `issue-${N}-(规划|实施|审查|测试|原型)` — the steady-state naming.
+  const m = terminal.name.match(/^issue-(\d+)-(规划|实施|审查|测试|原型)/)
   if (m) {
     const issueNumber = Number.parseInt(m[1], 10)
     if (Number.isFinite(issueNumber)) {
@@ -220,8 +224,8 @@ export function handleActiveTerminalChanged(panel: KanbanWebviewPanel, terminal:
  * 按钮能找到对应 terminal。
  */
 export function withLiveTerminalTabState(panel: KanbanWebviewPanel, issues: Issue[]): Issue[] {
-  const liveByIssue = new Map<number, Partial<Pick<Issue, 'brainstormTabOpen' | 'implementTabOpen' | 'reviewTabOpen' | 'testTabOpen'>>>()
-  const mark = (issueNumber: number, kind: 'brainstorm' | 'implement' | 'review' | 'test'): void => {
+  const liveByIssue = new Map<number, Partial<Pick<Issue, 'brainstormTabOpen' | 'implementTabOpen' | 'reviewTabOpen' | 'testTabOpen' | 'prototypeTabOpen'>>>()
+  const mark = (issueNumber: number, kind: SessionTabKind): void => {
     const patch = liveByIssue.get(issueNumber) ?? {}
     if (kind === 'brainstorm')
       patch.brainstormTabOpen = true
@@ -229,8 +233,10 @@ export function withLiveTerminalTabState(panel: KanbanWebviewPanel, issues: Issu
       patch.implementTabOpen = true
     else if (kind === 'review')
       patch.reviewTabOpen = true
-    else
+    else if (kind === 'test')
       patch.testTabOpen = true
+    else
+      patch.prototypeTabOpen = true
     liveByIssue.set(issueNumber, patch)
   }
 
@@ -242,19 +248,21 @@ export function withLiveTerminalTabState(panel: KanbanWebviewPanel, issues: Issu
   for (const terminal of window.terminals) {
     if (terminal.exitStatus !== undefined)
       continue
-    const match = terminal.name.match(/^issue-(\d+)-(规划|实施|审查|测试)(?:\s|$)/)
+    const match = terminal.name.match(/^issue-(\d+)-(规划|实施|审查|测试|原型)(?:\s|$)/)
     if (!match)
       continue
     const issueNumber = Number.parseInt(match[1], 10)
     if (!Number.isFinite(issueNumber))
       continue
-    const kind = match[2] === '规划'
+    const kind: SessionTabKind = match[2] === '规划'
       ? 'brainstorm'
       : match[2] === '实施'
         ? 'implement'
         : match[2] === '审查'
           ? 'review'
-          : 'test'
+          : match[2] === '测试'
+            ? 'test'
+            : 'prototype'
     panel.terminalOrigin.set(terminal, { issueNumber, kind })
     mark(issueNumber, kind)
   }
@@ -280,7 +288,7 @@ export function trackSessionTerminal(
   panel: KanbanWebviewPanel,
   terminal: Terminal,
   issueNumber: number,
-  kind: 'brainstorm' | 'implement' | 'review' | 'test',
+  kind: SessionTabKind,
 ): void {
   panel.terminalOrigin.set(terminal, { issueNumber, kind })
   panel.postMessage({
@@ -293,7 +301,9 @@ export function trackSessionTerminal(
           ? { implementTabOpen: true }
           : kind === 'review'
             ? { reviewTabOpen: true }
-            : { testTabOpen: true },
+            : kind === 'test'
+              ? { testTabOpen: true }
+              : { prototypeTabOpen: true },
   })
 }
 
@@ -319,7 +329,9 @@ export function untrackClosedTerminal(panel: KanbanWebviewPanel, closed: Termina
           ? { implementTabOpen: false }
           : origin.kind === 'review'
             ? { reviewTabOpen: false }
-            : { testTabOpen: false },
+            : origin.kind === 'test'
+              ? { testTabOpen: false }
+              : { prototypeTabOpen: false },
   })
 }
 
@@ -334,7 +346,7 @@ export function untrackClosedTerminal(panel: KanbanWebviewPanel, closed: Termina
  * thread_id 索引，此路径还没 thread_id），但会被登记到 terminalOrigin，
  * 所以用它做单一真相源最稳。
  */
-export function handleCloseSessionTab(panel: KanbanWebviewPanel, issueNumber: number, kind: 'brainstorm' | 'implement' | 'review' | 'test'): void {
+export function handleCloseSessionTab(panel: KanbanWebviewPanel, issueNumber: number, kind: SessionTabKind): void {
   let terminal: Terminal | undefined
   for (const [t, origin] of panel.terminalOrigin) {
     if (origin.issueNumber === issueNumber && origin.kind === kind) {

vscode/src/panel/messages.ts

@@ -52,7 +52,7 @@ export type ExtensionToWebview
     | { type: 'issues/loaded' }
     | { type: 'issues/update', issues: Issue[], scope: 'mine' | 'all', globalAutoReview: boolean, youtrackConfigured: boolean, me?: string, avatars?: Record<string, string> }
     | { type: 'issues/error', message: string }
-    | { type: 'issue/patch', issueNumber: number, patch: { autoReview?: boolean, specFile?: string, planFile?: string, prDiffFile?: string | null, sessionId?: string | null, implementSessionId?: string | null, reviewSessionId?: string | null, reviewSessionFileExists?: boolean, testSessionId?: string | null, pr?: string | null, implementStatus?: 'running' | 'done' | 'failed' | null, column?: IssueColumn, worktreePath?: string | null, prMerged?: boolean, prMergedAt?: string | null, branch?: string | null, color?: string, worktreeExists?: boolean, brainstormTabOpen?: boolean, implementTabOpen?: boolean, reviewTabOpen?: boolean, testTabOpen?: boolean, profilePath?: string | null, brainstormProfilePath?: string | null, testProfilePath?: string | null, assignees?: string[], handoffAttachmentId?: string | null, handoffFrom?: string | null } }
+    | { type: 'issue/patch', issueNumber: number, patch: { autoReview?: boolean, specFile?: string, planFile?: string, prDiffFile?: string | null, sessionId?: string | null, implementSessionId?: string | null, reviewSessionId?: string | null, reviewSessionFileExists?: boolean, testSessionId?: string | null, prototypeSessionId?: string | null, pr?: string | null, implementStatus?: 'running' | 'done' | 'failed' | null, column?: IssueColumn, worktreePath?: string | null, prMerged?: boolean, prMergedAt?: string | null, branch?: string | null, color?: string, worktreeExists?: boolean, brainstormTabOpen?: boolean, implementTabOpen?: boolean, reviewTabOpen?: boolean, testTabOpen?: boolean, prototypeTabOpen?: boolean, profilePath?: string | null, brainstormProfilePath?: string | null, testProfilePath?: string | null, prototypeProfilePath?: string | null, assignees?: string[], handoffAttachmentId?: string | null, handoffFrom?: string | null } }
     /** 某个会话 id 的开 tab 请求已处理完（开成、复用或被拒都算），webview 据此停掉行内 spinner。 */
     | { type: 'session/tab-settled', sessionId: string }
     | { type: 'issue/pr-diff-summary-done', issueNumber: number }
@@ -77,6 +77,7 @@ export type ExtensionToWebview
       autoReview: boolean
       reviewPrompt: string
       testPrompt: string
+      prototypePrompt: string
       devBranch: string
       releaseBranchPrefix: string
       jenkinsJob: string
@@ -92,6 +93,7 @@ export type ExtensionToWebview
       defaultBrainstormProfilePath: string
       defaultImplementProfilePath: string
       defaultTestProfilePath: string
+      defaultPrototypeProfilePath: string
       conflictResolutionProfilePath: string
       commitProfilePath: string
       prDiffSummaryProfilePath: string
@@ -160,6 +162,7 @@ export type WebviewToExtension
       autoReview: boolean
       reviewPrompt: string
       testPrompt: string
+      prototypePrompt: string
       devBranch: string
       releaseBranchPrefix: string
       jenkinsJob: string
@@ -175,6 +178,7 @@ export type WebviewToExtension
       defaultBrainstormProfilePath: string
       defaultImplementProfilePath: string
       defaultTestProfilePath: string
+      defaultPrototypeProfilePath: string
       conflictResolutionProfilePath: string
       commitProfilePath: string
       prDiffSummaryProfilePath: string
@@ -195,8 +199,10 @@ export type WebviewToExtension
     | { type: 'session/focus', issueNumber: number }
     | { type: 'session/resume-review', sessionId: string, issueNumber: number, cwd?: string }
     | { type: 'session/resume-test', sessionId: string, issueNumber: number, cwd?: string }
+    | { type: 'session/resume-prototype', sessionId: string, issueNumber: number, cwd?: string }
     | { type: 'session/start-review', issueNumber: number }
     | { type: 'session/start-test', issueNumber: number }
+    | { type: 'session/start-prototype', issueNumber: number }
     | { type: 'editor/open-file', path: string }
     | { type: 'profiles/list' }
     | { type: 'issue/implement', issueNumber: number, planFile: string, profilePath?: string, sessionId?: string }
@@ -220,10 +226,11 @@ export type WebviewToExtension
     | { type: 'issue/update-brainstorm-profile-path', issueNumber: number, brainstormProfilePath: string }
     | { type: 'issue/clear-brainstorm-session', issueNumber: number }
     | { type: 'issue/update-test-profile-path', issueNumber: number, testProfilePath: string }
+    | { type: 'issue/update-prototype-profile-path', issueNumber: number, prototypeProfilePath: string }
     | { type: 'logs/fetch' }
     | { type: 'logs/clear' }
     | { type: 'commit/run' }
-    | { type: 'session/close-tab', issueNumber: number, kind: 'brainstorm' | 'implement' | 'review' | 'test' }
+    | { type: 'session/close-tab', issueNumber: number, kind: 'brainstorm' | 'implement' | 'review' | 'test' | 'prototype' }
     | { type: 'release/check' }
     | { type: 'release/cut' }
     | { type: 'release/cherry-pick' }

vscode/src/panel/readOnlyGuard.ts

@@ -14,8 +14,10 @@ export const OWNER_ONLY_MESSAGE_TYPES: ReadonlySet<string> = new Set([
   'session/focus',
   'session/resume-review',
   'session/resume-test',
+  'session/resume-prototype',
   'session/start-review',
   'session/start-test',
+  'session/start-prototype',
   'session/close-tab',
   'brainstorm/continue',
   'issue/implement',
@@ -29,6 +31,7 @@ export const OWNER_ONLY_MESSAGE_TYPES: ReadonlySet<string> = new Set([
   'issue/update-brainstorm-profile-path',
   'issue/clear-brainstorm-session',
   'issue/update-test-profile-path',
+  'issue/update-prototype-profile-path',
   'dependency/set',
   'dependency/clear',
   'handoff/users',

vscode/src/settings/store.ts

@@ -34,7 +34,9 @@ const FALLBACK_TEST_PROMPT = `/pr-acceptance-testing 验收 {issueNumber} 号工
 
 const FALLBACK_REVIEW_PROMPT = `用 tea 拿到 #{prNumber} PR，diff 交给 ecc:code-reviewer 子代理审查。审查意见用 spx pr review-comment 发评论，body 第一行写 <!-- spx:review=1 -->。`
 
-type PromptName = 'brainstorm' | 'brainstorm-continue' | 'implement-plan' | 'review' | 'test'
+const FALLBACK_PROTOTYPE_PROMPT = `/ecc:figma-plugin-prototyping 给 {issueNumber} 号工单画原型：先读工单正文锁定要画的界面和状态，再写本地 Figma 插件把画板和点击流做出来。画完汇报插件路径和怎么导入，不要改业务代码。`
+
+type PromptName = 'brainstorm' | 'brainstorm-continue' | 'implement-plan' | 'review' | 'test' | 'prototype'
 
 /**
  * Read a default prompt template from `${extensionPath}/prompts/${name}.md`.
@@ -57,6 +59,7 @@ export function readDefaultPrompt(extensionPath: string, name: PromptName): stri
       case 'implement-plan': return FALLBACK_IMPLEMENT_PLAN_PROMPT
       case 'review': return FALLBACK_REVIEW_PROMPT
       case 'test': return FALLBACK_TEST_PROMPT
+      case 'prototype': return FALLBACK_PROTOTYPE_PROMPT
     }
   }
 }
@@ -92,6 +95,8 @@ export interface Settings {
   reviewPrompt: string
   /** 测试会话首个提示词模板；占位符 {issueNumber} / {prRef}。 */
   testPrompt: string
+  /** 原型会话首个提示词模板；占位符 {issueNumber}。 */
+  prototypePrompt: string
   /** Day-to-day development branch (e.g. `main`). Jenkins doesn't watch it. */
   devBranch: string
   /**
@@ -194,6 +199,8 @@ export interface Settings {
   defaultImplementProfilePath: string
   /** 测试会话的默认 Claude profile；工单级「测试配置文件」为空时用它。 */
   defaultTestProfilePath: string
+  /** 原型会话的默认 Claude profile；工单级「原型配置文件」为空时用它。 */
+  defaultPrototypeProfilePath: string
   /**
    * Claude settings profile path for the conflict-resolution cc session
    * (drag to 完成 when PR merge conflicts). Empty = DEFAULT_PROFILE_PATH.
@@ -272,6 +279,7 @@ function defaults(ctx: ExtensionContext): Settings {
     autoReview: true,
     reviewPrompt: readDefaultPrompt(ctx.extensionPath, 'review'),
     testPrompt: readDefaultPrompt(ctx.extensionPath, 'test'),
+    prototypePrompt: readDefaultPrompt(ctx.extensionPath, 'prototype'),
     devBranch: 'main',
     releaseBranchPrefix: 'release/',
     jenkinsJob: '',
@@ -290,6 +298,7 @@ function defaults(ctx: ExtensionContext): Settings {
     defaultBrainstormProfilePath: '',
     defaultImplementProfilePath: '',
     defaultTestProfilePath: '',
+    defaultPrototypeProfilePath: '',
     conflictResolutionProfilePath: '',
     commitProfilePath: '',
     prDiffSummaryProfilePath: '',
@@ -328,6 +337,9 @@ export function getSettings(ctx: ExtensionContext): Settings {
   const testPrompt = typeof stored.testPrompt === 'string' && stored.testPrompt.length > 0
     ? stored.testPrompt
     : base.testPrompt
+  const prototypePrompt = typeof stored.prototypePrompt === 'string' && stored.prototypePrompt.length > 0
+    ? stored.prototypePrompt
+    : base.prototypePrompt
   // devBranch always has a usable value — fall back to 'main' if missing/blank
   // so we never end up trying to fetch the empty string.
   const devBranch = typeof stored.devBranch === 'string' && stored.devBranch.length > 0
@@ -390,7 +402,7 @@ export function getSettings(ctx: ExtensionContext): Settings {
   const youtrackCloseCommand = typeof stored.youtrackCloseCommand === 'string'
     ? stored.youtrackCloseCommand
     : base.youtrackCloseCommand
-  // 三个会话默认 profile：'' 有意义（= 落到 DEFAULT_PROFILE_PATH），不强制回退。
+  // 四个会话默认 profile：'' 有意义（= 落到 DEFAULT_PROFILE_PATH），不强制回退。
   const defaultBrainstormProfilePath = typeof stored.defaultBrainstormProfilePath === 'string'
     ? stored.defaultBrainstormProfilePath
     : base.defaultBrainstormProfilePath
@@ -400,6 +412,9 @@ export function getSettings(ctx: ExtensionContext): Settings {
   const defaultTestProfilePath = typeof stored.defaultTestProfilePath === 'string'
     ? stored.defaultTestProfilePath
     : base.defaultTestProfilePath
+  const defaultPrototypeProfilePath = typeof stored.defaultPrototypeProfilePath === 'string'
+    ? stored.defaultPrototypeProfilePath
+    : base.defaultPrototypeProfilePath
   // conflict-resolution profile: '' is meaningful (= DEFAULT_PROFILE_PATH at
   // launch time), so don't coerce. Non-string legacy values collapse to ''.
   const conflictResolutionProfilePath = typeof stored.conflictResolutionProfilePath === 'string'
@@ -434,6 +449,7 @@ export function getSettings(ctx: ExtensionContext): Settings {
     autoReview,
     reviewPrompt,
     testPrompt,
+    prototypePrompt,
     devBranch,
     releaseBranchPrefix,
     jenkinsJob,
@@ -452,6 +468,7 @@ export function getSettings(ctx: ExtensionContext): Settings {
     defaultBrainstormProfilePath,
     defaultImplementProfilePath,
     defaultTestProfilePath,
+    defaultPrototypeProfilePath,
     conflictResolutionProfilePath,
     commitProfilePath,
     prDiffSummaryProfilePath,

vscode/src/youtrack/issueLoader.ts

@@ -68,9 +68,11 @@ function toIssue(baseUrl: string, it: YouTrackIssue): Issue {
     implementSessionId: str(state.implementSessionId),
     reviewSessionId: str(state.reviewSessionId),
     testSessionId: str(state.testSessionId),
+    prototypeSessionId: str(state.prototypeSessionId),
     profilePath: str(state.profilePath),
     brainstormProfilePath: str(state.brainstormProfilePath),
     testProfilePath: str(state.testProfilePath),
+    prototypeProfilePath: str(state.prototypeProfilePath),
     specFile: str(state.specFile),
     planFile: str(state.planFile),
     prDiffFile: str(state.prDiffFile),

vscode/src/youtrack/stateComment.ts

@@ -20,7 +20,7 @@ import { addComment, listComments } from './api'
 export const STATE_MARKER = '<!--spx-state-->'
 
 /** Same field set as the Gitea state blob — kept independent to avoid coupling. */
-const KNOWN_STATE_FIELDS = ['column', 'sessionId', 'implementSessionId', 'reviewSessionId', 'testSessionId', 'profilePath', 'brainstormProfilePath', 'testProfilePath', 'specFile', 'planFile', 'prDiffFile', 'pr', 'prMerged', 'prMergedAt', 'branch', 'worktreePath', 'implementStatus', 'color', 'autoReview', 'handoffAttachmentId', 'handoffFrom'] as const
+const KNOWN_STATE_FIELDS = ['column', 'sessionId', 'implementSessionId', 'reviewSessionId', 'testSessionId', 'prototypeSessionId', 'profilePath', 'brainstormProfilePath', 'testProfilePath', 'prototypeProfilePath', 'specFile', 'planFile', 'prDiffFile', 'pr', 'prMerged', 'prMergedAt', 'branch', 'worktreePath', 'implementStatus', 'color', 'autoReview', 'handoffAttachmentId', 'handoffFrom'] as const
 
 /**
  * Parse a comment body into a state object, or null if it isn't a state