refactor(web): move the produced-files row into its own plugin package

ui-conversation now owns only the conversation.chat.turnTail hole; the row,
its derivation, and its copy live in @deepseek-ai/dsh-client-ui-deliverables,
composed in or out by one cordis.yml line.

packages/client/ui-conversation/src/client/apply.ts

@@ -303,6 +303,7 @@ export function apply(ctx: Context): void {
     children: {
       'conversation.chat.toolview': { kind: 'keyed', scope: 'session' },
       'conversation.chat.commandview': { kind: 'keyed', scope: 'session' },
+      'conversation.chat.turnTail': { kind: 'list', scope: 'session' },
     },
     store: chatStore,
     inject: (sessionId: SessionId, actions: BoundActions<typeof chatStore>): ChatViewInjected => {

packages/client/ui-conversation/src/client/chat/AssistantMarkdown.tsx

@@ -9,13 +9,12 @@
 // only when the node is also the completed turn's transcript tail. Think /
 // tool-head-only nodes stay chrome-free.
 
-import { memo, useMemo } from 'react'
+import { memo, useMemo, type ReactNode } from 'react'
 import type { AssistantBlock } from '@deepseek-ai/dsh-client-runtime/client'
 import {
   IconThinkOutline14, JsonBlock, MarkdownText,
 } from '@deepseek-ai/dsh-client-ui-primitives'
 import type { ChatViewSlotProps } from '../contract/slots.ts'
-import { Deliverables } from './Deliverables.tsx'
 import { MessageIconActions } from './MessageIconActions.tsx'
 import { ToolRow } from './ToolRow.tsx'
 import css from './AssistantMarkdown.module.css'
@@ -39,11 +38,9 @@ export interface AssistantMarkdownProps {
   seq?: number | undefined
   /** Fork the session through this finalized message's completed turn when eligible. */
   onFork?: ((seq: number) => void) | undefined
-  /** Files the closing turn produced, listed under the body; omitted for a
-   *  mid-turn assistant and for a turn that wrote nothing. */
-  produced?: readonly string[] | undefined
-  /** Opens one produced file; omitted wherever `produced` is. */
-  openFile?: ((path: string) => void) | undefined
+  /** Turn-tail content (the chat view's turnTail hole, rendered by the
+   *  owner); omitted for a mid-turn assistant. */
+  tail?: ReactNode | undefined
   /** The message is not the transcript tail of a completed turn. */
   forkUnavailable?: boolean | undefined
   /** The owning view's locale seat, passed down as a plain prop. */
@@ -92,7 +89,7 @@ function ThinkRow({ text, running, t }: { text: string; running: boolean; t: Ass
 }
 
 export const AssistantMarkdown = memo(function AssistantMarkdown({
-  blocks, streaming, interrupted, time, runMs, ttftMs, tokensPerSecond, seq, onFork, forkUnavailable, produced, openFile, t,
+  blocks, streaming, interrupted, time, runMs, ttftMs, tokensPerSecond, seq, onFork, forkUnavailable, tail, t,
 }: AssistantMarkdownProps) {
   // Stable per locale revision (t identity changes on switch): a fresh object
   // per render would rebuild MarkdownText's component table every chunk.
@@ -130,9 +127,7 @@ export const AssistantMarkdown = memo(function AssistantMarkdown({
         })}
         {interrupted && <span className={css.stopped}>{t('message.stopped')}</span>}
       </div>
-      {showActions && produced !== undefined && openFile !== undefined && (
-        <Deliverables paths={produced} openFile={openFile} t={t} />
-      )}
+      {showActions && tail}
       {showActions && (
         <MessageIconActions
           text={copyText(blocks)}

packages/client/ui-conversation/src/client/chat/ChatView.tsx

@@ -30,7 +30,7 @@ import type {
 import type { SnapshotSelectorHook } from '@deepseek-ai/dsh-client-ui-slots'
 import { IconChevronDownOutline14 } from '@deepseek-ai/dsh-client-ui-primitives'
 import type { ChatViewSlotProps } from '../contract/slots.ts'
-import { assistantActionsSeqs, deriveChatFlow, messageBranchSeqs, runningTurnStartTime, turnDeliverables, type ChatFlowItem } from './chat-flow.ts'
+import { assistantActionsSeqs, deriveChatFlow, messageBranchSeqs, runningTurnStartTime, type ChatFlowItem } from './chat-flow.ts'
 import { AssistantMarkdown } from './AssistantMarkdown.tsx'
 import { GenericCommandCard } from './GenericCommandCard.tsx'
 import { GenericToolCard } from './GenericToolCard.tsx'
@@ -361,9 +361,6 @@ export function ChatView({
   // Only the last content assistant of each turn owns IconActions; mid-turn
   // text (before tools) omits `time` so AssistantMarkdown stays chrome-free.
   const actionSeqs = useMemo(() => assistantActionsSeqs(nodes), [nodes])
-  // Produced files per closing assistant: derived from the mutation tools'
-  // locations, so a turn's output is listed whether or not the model named it.
-  const produced = useMemo(() => turnDeliverables(nodes), [nodes])
   const branchSeqs = useMemo(() => messageBranchSeqs(nodes, turnEnds), [nodes, turnEnds])
   const runningTurnStart = useMemo(() => runningTurnStartTime(turnTimings), [turnTimings])
   const turnMetrics = useMemo(() => deriveTurnMetrics(nodes), [nodes])
@@ -621,8 +618,9 @@ export function ChatView({
           seq={node.seq}
           onFork={forkAt}
           forkUnavailable={!branchSeqs.has(node.seq)}
-          produced={produced.get(node.seq)}
-          openFile={openFile}
+          tail={actionSeqs.has(node.seq)
+            ? renderSlot('conversation.chat.turnTail', { nodes, seq: node.seq, openFile })
+            : undefined}
           t={t}
         />
       )

packages/client/ui-conversation/src/client/chat/Deliverables.module.css

@@ -1,44 +0,0 @@
-/* Turn-tail produced-files row: a quiet label followed by wrapping file chips.
-   Sits between the assistant body and its IconActions footer, so it reads as
-   part of the answer rather than as another tool row. */
-
-.root {
-  display: flex;
-  flex-wrap: wrap;
-  align-items: center;
-  gap: 8px;
-  margin-top: 16px;
-  font-size: 13px;
-  line-height: 22px;
-}
-
-.label {
-  color: var(--dsw-alias-label-tertiary);
-}
-
-/* One produced file. A link by behavior (it opens the file), a chip by shape:
-   full paths are long and several may wrap onto one row. */
-.file {
-  max-width: 320px;
-  overflow: hidden;
-  text-overflow: ellipsis;
-  white-space: nowrap;
-  margin: 0;
-  padding: 0 8px;
-  border: none;
-  border-radius: 6px;
-  background: var(--dsw-alias-interactive-bg-hover);
-  color: var(--dsw-alias-label-secondary);
-  font: inherit;
-  cursor: pointer;
-}
-
-.file:hover {
-  color: var(--dsw-alias-label-primary);
-  text-decoration: underline;
-}
-
-/* Overflow count: the row never silently drops files it did not show. */
-.more {
-  color: var(--dsw-alias-label-tertiary);
-}

packages/client/ui-conversation/src/client/chat/Deliverables.tsx

@@ -1,53 +0,0 @@
-// Deliverables: the produced-file row a finished turn ends with. The paths come
-// from the mutation tools' follow-along locations (see turnDeliverables), never
-// from the closing prose, so the answer carries its own output whether or not
-// the model remembered to name it. Clicking one goes through the same openFile
-// the tool rows use — the Host's own opener, on the Host machine.
-
-import type { ChatViewSlotProps } from '../contract/slots.ts'
-import css from './Deliverables.module.css'
-
-/** Files past this stay counted but unlisted: a refactor turn must not bury the answer. */
-const SHOWN = 6
-
-/** Trailing path segment, the part that identifies the file at a glance. */
-function basename(path: string): string {
-  const at = Math.max(path.lastIndexOf('/'), path.lastIndexOf('\\'))
-  return at === -1 ? path : path.slice(at + 1)
-}
-
-/**
- * Render one turn's produced files as openable chips.
- * @param props - the turn's paths (tool order, already deduped), the chat
- * view's file opener, and the owning view's locale seat.
- * @returns The row, or `null` when the turn produced nothing.
- */
-export function Deliverables({ paths, openFile, t }: {
-  paths: readonly string[]
-  openFile: (path: string) => void
-  t: ChatViewSlotProps['t']
-}) {
-  if (paths.length === 0) return null
-  const shown = paths.slice(0, SHOWN)
-  const hidden = paths.length - shown.length
-  return (
-    <div className={css.root}>
-      <span className={css.label}>{t('produced.label')}</span>
-      {shown.map(path => (
-        <button
-          key={path}
-          type="button"
-          className={css.file}
-          // The full path is the disambiguator when two turns produce files
-          // that share a basename; the chip itself stays short.
-          title={path}
-          aria-label={t('produced.open', { name: path })}
-          onClick={() => { openFile(path) }}
-        >
-          {basename(path)}
-        </button>
-      ))}
-      {hidden > 0 && <span className={css.more}>{t('produced.more', { count: String(hidden) })}</span>}
-    </div>
-  )
-}

packages/client/ui-conversation/src/client/chat/chat-flow.ts

@@ -32,21 +32,6 @@ function rendersNothing(node: ConversationNode): boolean {
       || ((b.kind === 'text' || b.kind === 'reasoning') && b.text.trim() === ''))
 }
 
-/**
- * Paths a call view reports having created or changed, by render intent rather
- * than tool name: a diff card, or a generic card whose kind is `edit` (the
- * shape `str_replace_editor`'s insert presents). Every other card produces
- * nothing to open — a read looked, a delete removed, a terminal ran.
- */
-function producedPaths(view: ToolResultNode['callView']): readonly string[] {
-  if (view === null) return []
-  if (view.card === 'diff') return (view.locations ?? []).map(location => location.path)
-  if (view.card === 'generic' && view.kind === 'edit') {
-    return (view.locations ?? []).map(location => location.path)
-  }
-  return []
-}
-
 /**
  * Seq set of assistants that own IconActions: the last content-text assistant
  * in each turn. Mid-turn narration (text before tools) stays chrome-free.
@@ -62,68 +47,6 @@ export function assistantActionsSeqs(nodes: readonly ConversationNode[]): Readon
   return new Set(lastByTurn.values())
 }
 
-/**
- * Files each turn produced, keyed by the assistant seq that closes it — the
- * same anchor {@link assistantActionsSeqs} elects, so the row lands under the
- * message that reports the work rather than after some mid-turn narration.
- *
- * The source is the mutation tools' own follow-along `locations`, not the
- * closing prose: a produced file must be listed whether or not the model
- * remembered to name it. A mutation is recognized by render intent, not by
- * tool name — a diff card, or a generic card whose `kind` is `edit` (the shape
- * `str_replace_editor`'s insert presents) — so a new mutation tool joins by
- * declaring what it does. Reads contribute nothing (looking at a file does not
- * produce it), and neither do deletes (there is nothing left to open) or
- * failed calls. Paths keep first-seen order and appear once, so a file written
- * and then edited in the same turn is one entry.
- *
- * Accumulation resets on the turn boundary, not merely at the closing
- * assistant: a turn that mutates files and then ends without content text
- * (interrupted mid-tool, or a turn whose last text precedes its last tool
- * result) must not spill its paths into the next turn's row, nor leave `seen`
- * suppressing a file the next turn legitimately rewrites.
- * @param nodes - snapshot nodes (surface order).
- * @returns Per-closing-seq produced paths; a turn that produced none is absent.
- */
-export function turnDeliverables(nodes: readonly ConversationNode[]): ReadonlyMap<number, readonly string[]> {
-  const closing = assistantActionsSeqs(nodes)
-  const byClosingSeq = new Map<number, readonly string[]>()
-  let pending: string[] = []
-  let seen = new Set<string>()
-  let turn: number | undefined
-  for (const node of nodes) {
-    if (node.kind === 'tool-result') {
-      if (node.isError) continue
-      for (const path of producedPaths(node.callView)) {
-        if (seen.has(path)) continue
-        seen.add(path)
-        pending.push(path)
-      }
-      continue
-    }
-    // Tool results carry no turn of their own, so the boundary is read off the
-    // nodes that do. A user message opens a turn without reporting a number,
-    // which is why the tracked turn goes back to undefined there: the next
-    // node to report one is stating the current turn, not entering a new one.
-    if (node.kind === 'user') {
-      turn = undefined
-      pending = []
-      seen = new Set()
-    } else if ('turn' in node) {
-      if (turn !== undefined && node.turn !== turn) {
-        pending = []
-        seen = new Set()
-      }
-      turn = node.turn
-    }
-    if (node.kind !== 'assistant' || !closing.has(node.seq)) continue
-    if (pending.length > 0) byClosingSeq.set(node.seq, pending)
-    pending = []
-    seen = new Set()
-  }
-  return byClosingSeq
-}
-
 /**
  * Exact start time of the latest in-window turn without a matching end time.
  * @param turnTimings - In-window turn timings in event order.

packages/client/ui-conversation/src/client/contract/slots.ts

@@ -3,7 +3,7 @@ import type { ReactNode, RefObject } from 'react'
 import type {
   InjectFace, MaybeSnapshotSelectorHook, PropsLocale, PropsRenderSlots, PropsRuntime, PropsStore, SnapshotSelectorHook,
 } from '@deepseek-ai/dsh-client-ui-slots'
-import type { CommandNode, ConversationSnapshot, ObservableSnapshot, PendingInteraction, PendingWait, SessionId, ToolCallBlock, WorkspaceId } from '@deepseek-ai/dsh-client-runtime/client'
+import type { CommandNode, ConversationNode, ConversationSnapshot, ObservableSnapshot, PendingInteraction, PendingWait, SessionId, ToolCallBlock, WorkspaceId } from '@deepseek-ai/dsh-client-runtime/client'
 import type {} from '@deepseek-ai/dsh-client-ui-layout/client'
 import type { ComposerKeyboard, EditSelection, InputActions, InputNotice, InputState } from '../input/contract.ts'
 import type { createChatStore } from '../stores.ts'
@@ -46,6 +46,15 @@ declare module '@deepseek-ai/dsh-client-ui-slots' {
      * registration, and a domain upgrades by registering one row component.
      */
     'conversation.chat.commandview': { kind: 'keyed'; scope: 'session'; owner: CommandRowOwnerProps }
+    /**
+     * The chat view's turn-tail hole: rendered between a closing assistant
+     * message's body and its IconActions footer, once per turn (the render
+     * site elects the closing seq). Declared by the chat view entry; feature
+     * plugins (ui-deliverables' produced-files row) derive what they show
+     * from the owner currency, and an unregistered hole renders nothing —
+     * composing such a plugin out of cordis.yml turns its surface off.
+     */
+    'conversation.chat.turnTail': { kind: 'list'; scope: 'session'; owner: TurnTailOwnerProps }
     /**
      * The composer takeover chain: entries are selector-routed replacements
      * of the default InputBar. Declared by this package's 'conversation'
@@ -150,6 +159,24 @@ export interface ConvViewOwnerProps {
   onInspectDone?: () => void
 }
 
+/**
+ * Owner currency of the chat view's turn-tail hole: the finalized snapshot
+ * and the closing assistant's anchor. Registrants derive their own facts
+ * from the nodes (the owner never pre-chews a feature's vocabulary), and
+ * open files through the same opener the tool rows use.
+ */
+export interface TurnTailOwnerProps {
+  /** Finalized snapshot nodes in surface order. */
+  nodes: readonly ConversationNode[]
+  /** The closing assistant's seq — the anchor the tail renders under. */
+  seq: number
+  /**
+   * Open a filesystem path through the Host (tool-row semantics; the chat
+   * view resolves relative paths against the session cwd).
+   */
+  openFile: (path: string) => void
+}
+
 /**
  * Owner share of a per-view toolview slot: the call material the rendering
  * view supplies per row. Uniform across views — the trajectory/waterfall
@@ -480,7 +507,7 @@ export interface ChatViewInjected {
 
 /** Full chat-view component props: runtime & the declared toolview/commandview holes' render share & store & injected & locale seat. */
 export type ChatViewSlotProps =
-  PropsRuntime<'conversation.view'> & PropsRenderSlots<'conversation.chat.toolview' | 'conversation.chat.commandview'>
+  PropsRuntime<'conversation.view'> & PropsRenderSlots<'conversation.chat.toolview' | 'conversation.chat.commandview' | 'conversation.chat.turnTail'>
   & PropsStore<ChatStore> & ChatViewInjected & PropsLocale<'conversation'>
 
 /**

packages/client/ui-conversation/src/client/index.ts

@@ -17,7 +17,7 @@ export type {
   ComposerChainProps, ConversationInjected,
   ConversationSessionHeaderInjected, ConversationSessionInjected, ConversationSlotProps,
   ConvViewOwnerProps, ConvViewProps, DetailsInjected, DetailsSlotProps,
-  EmptyWorkspaceOwnerProps, ToolRowOwnerProps, ToolRowProps,
+  EmptyWorkspaceOwnerProps, ToolRowOwnerProps, ToolRowProps, TurnTailOwnerProps,
 } from './contract/slots.ts'
 // Export discipline: packages/client/AGENTS.md.
 

packages/client/ui-conversation/src/client/locales.ts

@@ -85,9 +85,6 @@ export const zh = {
   'message.unknownSurface': '未知 surface 事件：{type}',
   'message.unknownBlock': '未知内容块',
   'message.stopped': '已停止',
-  'produced.label': '产物',
-  'produced.more': '还有 {count} 个',
-  'produced.open': '打开 {name}',
   'message.branch': '在新对话中分支',
   'message.branchUnavailable': '仅可从已完成轮次的最后一条消息分支',
   'message.retry.active': '正在重试模型请求',
@@ -228,9 +225,6 @@ export const en = {
   'message.unknownSurface': 'Unknown surface event: {type}',
   'message.unknownBlock': 'Unknown content block',
   'message.stopped': 'Stopped',
-  'produced.label': 'Produced',
-  'produced.more': '{count} more',
-  'produced.open': 'Open {name}',
   'message.branch': 'Branch into a new conversation',
   'message.branchUnavailable': 'Available only on the last message of a completed turn',
   'message.retry.active': 'Retrying model request',