diff --git a/FORK.md b/FORK.md
index d23094f..96ee8e8 100644
--- a/FORK.md
+++ b/FORK.md
@@ -5,6 +5,7 @@
 - Agent 自建定时任务（`cron_create` / `cron_list` / …）
 - 按创建来源默认投递：**WhatsApp 会话 → IM**；**Web/DSH 会话 → 侧栏新会话**
 - 与 [dsh-im-ops](https://github.com/hansjone/dsh-im-ops) 的 `ctx.dshIm.send(botId, targetId, text)` 打通
+- 跑完后把摘要**镜像**进创建时的有效会话（Web 来源会话 / WhatsApp 对端绑定会话），便于继续追问
 
 不要与上游 `@dsh-external/dsh-cron-tasks` 装进同一 profile（工具名冲突）。
 
@@ -27,7 +28,18 @@ dsh plugin --profile web add -w "D:\project\chatgpt\dsh-ops-cron"
 
 1. 包名 / cordis id / HTTP 前缀仍为 `dsh-ops-cron`；侧栏产品文案为「定时任务」
 2. Job 增加 `delivery: { kind: 'dsh'|'im', botId?, targetId? }`
-3. `cron_create` 支持 `delivery` / `im_bot_id` / `im_target_id`；未显式指定时，若当前会话能 `resolveSessionPeer` 且已有匹配投递目标 → 默认 IM
-4. 开火后若 `delivery.kind === 'im'`，把 assistant 摘要经 `ctx.dshIm.send` 投回
+3. Job 增加 `origin: { kind: 'web'|'im', sessionId?, peer? }`（创建时钉死；IM 开火时优先按 `conversationKey` 解析当前绑定会话）
+4. `cron_create` 支持 `delivery` / `im_bot_id` / `im_target_id`；未显式指定时，若当前会话能 `resolveSessionPeer` 且已有匹配投递目标 → 默认 IM
+5. 开火后若 `delivery.kind === 'im'`，把 assistant 摘要经 `ctx.dshIm.send` 投回
+6. 开火终态后把同构摘要镜像进有效会话（`agents.get` 或 `agents.resume` 后 `session.append`，不另开一轮模型；不用 `agents.create`，避免覆盖已有会话）
+
+## 执行会话 vs 有效会话
+
+| 角色 | 是什么 | 用途 |
+|------|--------|------|
+| 执行会话 | 每次开火新建的 root Session（侧栏历史可打开） | 跑 Agent、保留工具轨迹 |
+| 有效会话 | 创建时的 Web 会话，或 WhatsApp/IM `conversationKey` 当前绑定的 Session | 用户日常追问所在处；摘要镜像写入这里 |
+
+`dshIm.send` 只保证平台侧可见，不会自动写 Harness 会话日志；镜像是 cron 层额外一步。
 
 关键告警推送仍在 **netxops**，不经过本插件。
diff --git a/README.md b/README.md
index cad842e..3c2f14f 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,7 @@ Scheduled-task plugin for DeepSeek Harness (fork of [dsh-cron-tasks](https://git
 - Sidebar **定时任务** under New Session
 - Agent tools: `cron_create` / `cron_list` / `cron_pause` / `cron_resume` / `cron_delete`
 - Per-job delivery: **DSH** (new root session) or **IM** (`ctx.dshIm.send`)
+- After each fire, mirrors the summary into the **origin effective session** (creator Web chat or WhatsApp peer binding) so follow-ups share context
 
 See [FORK.md](FORK.md) for install notes. Do **not** install upstream `@dsh-external/dsh-cron-tasks` in the same profile.
 
@@ -18,14 +19,16 @@ dsh plugin --profile web add -w "github:hansjone/dsh-ops-cron"
 
 ## Delivery defaults
 
-| Created from | Default delivery |
-|--------------|------------------|
-| WhatsApp / IM session | `im` → reuse or **auto-create** a 投递目标 for that chat (group→group, DM→DM) |
-| Web / plain DSH session | `dsh` → sidebar history session |
-| Explicit `delivery` / `im_bot_id`+`im_target_id` | as specified |
+| Created from | Default delivery | Effective-session mirror |
+|--------------|------------------|--------------------------|
+| WhatsApp / IM session | `im` → reuse or **auto-create** a 投递目标 for that chat (group→group, DM→DM) | Live session for that `conversationKey` (latest binding) |
+| Web / plain DSH session | `dsh` → sidebar history session | Creator session pinned as `origin.sessionId` |
+| Explicit `delivery` / `im_bot_id`+`im_target_id` | as specified | Same mirror rules when `origin` / peer can be resolved |
 
 You usually do **not** need to paste botId/targetId when creating from WhatsApp — omit `delivery` and the job binds to the current chat.
 
+**Execution session ≠ effective session.** Each fire still opens a fresh root Session for the Agent turn (visible under 定时任务 history). The mirrored notice is what makes the WhatsApp/Web chat you actually use able to continue from the result.
+
 ## Agent preset
 
 | Source | Behavior |
diff --git a/lib/client.js b/lib/client.js
index eeebe55..c782fa5 100644
--- a/lib/client.js
+++ b/lib/client.js
@@ -302,7 +302,7 @@ body>.dsh-ct-main{position:fixed;top:0;right:0;bottom:0;left:var(--dsh-ct-sideba
       saveFailed: '本部署没有接受这些值，已保留供你修改。',
       enabled: '启用调度器', timezone: '默认时区', historyLimit: '历史保留条数',
       overlapPolicy: '重叠策略', misfirePolicy: '漏跑策略', policySkip: '跳过',
-      hint: '任务在左侧「新会话」下方进入。运行结果会出现在历史行里，点击记录会打开和普通会话一样的对话页，可以继续聊。',
+      hint: '每次执行会新开会话跑任务；摘要会镜像回创建时的有效会话（WhatsApp/Web），便于继续追问。完整工具轨迹仍可从历史打开。',
       entry: '定时任务', entryLabel: '打开定时任务',
       backToWorkspace: '返回工作区', backLabel: '返回工作区',
       newJob: '新建任务', name: '名称', prompt: '提示词', kind: '日程',
@@ -322,7 +322,7 @@ body>.dsh-ct-main{position:fixed;top:0;right:0;bottom:0;left:var(--dsh-ct-sideba
       agentPreset: 'Agent Preset',
       agentPresetDefault: '每次运行用当时的 Host 默认',
       agentPresetHint: '指定后每次触发都挂载该 Preset；留空则跟随 Host 默认（创建时若从 WhatsApp 继承会自动写入）。',
-      editorLead: '保存后按日程在新会话里执行；若投递为 IM，结束后还会发摘要到 WhatsApp/IM。点击下方某次运行，右侧会打开那次对话，可以继续。',
+      editorLead: '到点仍会新开会话执行。结束后摘要会镜像回创建时的有效会话；IM 投递还会经 WhatsApp/IM 发出。日常追问请用原会话；完整工具轨迹可从下方运行记录打开。',
       lastOutput: '上次输出', noOutput: '还没有输出。先立即运行一次。',
       delivery: '投递',
       deliveryDsh: 'DSH 侧栏会话',
@@ -343,7 +343,7 @@ body>.dsh-ct-main{position:fixed;top:0;right:0;bottom:0;left:var(--dsh-ct-sideba
       saveFailed: 'The deployment did not accept these values; they were left for you to correct.',
       enabled: 'Enable scheduler', timezone: 'Default time zone', historyLimit: 'History retention',
       overlapPolicy: 'Overlap policy', misfirePolicy: 'Misfire policy', policySkip: 'Skip',
-      hint: 'Open from under New Session. Run output appears in history; click a run to continue in the normal chat view.',
+      hint: 'Each fire runs in a fresh session; the summary is mirrored into the origin WhatsApp/Web session so you can follow up there. Full tool traces stay in run history.',
       entry: 'Scheduled tasks', entryLabel: 'Open scheduled tasks',
       backToWorkspace: 'Back to workspace', backLabel: 'Back to workspace',
       newJob: 'New job', name: 'Name', prompt: 'Prompt', kind: 'Schedule',
@@ -363,7 +363,7 @@ body>.dsh-ct-main{position:fixed;top:0;right:0;bottom:0;left:var(--dsh-ct-sideba
       agentPreset: 'Agent preset',
       agentPresetDefault: 'Use the Host default at fire time',
       agentPresetHint: 'Pin a preset for every fire. Leave empty to follow the Host default (WhatsApp-created jobs inherit the chat preset automatically).',
-      editorLead: 'Runs start a new session. IM delivery also sends a summary via dshIm after the turn. Click a run below to open that conversation.',
+      editorLead: 'Fires still run in a new session. Afterward the summary is mirrored into the origin session; IM delivery also sends via WhatsApp/IM. Follow up in the origin chat; open a run below for the full tool trace.',
       lastOutput: 'Last output', noOutput: 'No output yet. Run it once.',
       delivery: 'Delivery',
       deliveryDsh: 'DSH sidebar session',
@@ -1230,6 +1230,16 @@ body>.dsh-ct-main{position:fixed;top:0;right:0;bottom:0;left:var(--dsh-ct-sideba
         if (opened === false) setError('打不开这次对话，会话可能已被删除')
       }
 
+      function currentSessionId(faces) {
+        try {
+          const snap = faces?.sessions?.list?.getSnapshot?.()
+          const current = snap?.current
+          return typeof current === 'string' && current.trim() ? current.trim() : ''
+        } catch {
+          return ''
+        }
+      }
+
       async function save() {
         try {
           const atValue = form.kind === 'at' ? localInputToAt(form.at, form.timezone) : form.at
@@ -1248,6 +1258,8 @@ body>.dsh-ct-main{position:fixed;top:0;right:0;bottom:0;left:var(--dsh-ct-sideba
           if (selection.type === 'job' && selection.jobId) {
             await api(`/jobs/${selection.jobId}`, { method: 'PATCH', body: JSON.stringify(payload) })
           } else {
+            const originSessionId = currentSessionId(faces)
+            if (originSessionId) payload.origin = { kind: 'web', sessionId: originSessionId }
             const created = await api('/jobs', { method: 'POST', body: JSON.stringify(payload) })
             setSelection({ type: 'job', jobId: created.job.id })
           }
diff --git a/lib/delivery.js b/lib/delivery.js
index ad077f5..5caff5c 100644
--- a/lib/delivery.js
+++ b/lib/delivery.js
@@ -266,6 +266,91 @@ export function callerSessionId(exec) {
   ).trim()
 }
 
+/**
+ * Normalize a durable origin binding for result mirroring.
+ * @param {object|null|undefined} input
+ * @returns {{ kind: 'web' | 'im', sessionId?: string, peer?: object } | null}
+ */
+export function normalizeOrigin(input) {
+  if (!input || typeof input !== 'object') return null
+  const sessionId = typeof input.sessionId === 'string' ? input.sessionId.trim() : ''
+  const peerSrc = input.peer && typeof input.peer === 'object' ? input.peer : null
+  const peerBotId = typeof peerSrc?.botId === 'string' ? peerSrc.botId.trim() : ''
+  const conversationKey = typeof peerSrc?.conversationKey === 'string'
+    ? peerSrc.conversationKey.trim()
+    : ''
+  const kindRaw = String(input.kind || '').trim().toLowerCase()
+  const kind = kindRaw === 'im' || peerBotId
+    ? 'im'
+    : (kindRaw === 'web' || sessionId ? 'web' : '')
+  if (!kind) return null
+  if (!sessionId && !(kind === 'im' && peerBotId && conversationKey)) return null
+  const origin = { kind }
+  if (sessionId) origin.sessionId = sessionId
+  if (kind === 'im' && peerBotId && conversationKey) {
+    origin.peer = {
+      botId: peerBotId,
+      conversationKey,
+      ...typeof peerSrc.conversationId === 'string' && peerSrc.conversationId.trim()
+        ? { conversationId: peerSrc.conversationId.trim() }
+        : {},
+      ...peerSrc.kind === 'group' || peerSrc.kind === 'direct'
+        ? { kind: peerSrc.kind }
+        : {},
+    }
+  }
+  return origin
+}
+
+function slimPeer(peer) {
+  if (!peer || typeof peer !== 'object') return null
+  const botId = typeof peer.botId === 'string' ? peer.botId.trim() : ''
+  const conversationKey = typeof peer.conversationKey === 'string'
+    ? peer.conversationKey.trim()
+    : ''
+  if (!botId || !conversationKey) return null
+  return {
+    botId,
+    conversationKey,
+    ...typeof peer.conversationId === 'string' && peer.conversationId.trim()
+      ? { conversationId: peer.conversationId.trim() }
+      : {},
+    ...peer.kind === 'group' || peer.kind === 'direct' ? { kind: peer.kind } : {},
+  }
+}
+
+/**
+ * Resolve origin for cron_create / sidebar create.
+ * Prefer an explicit origin; else capture the caller session (+ IM peer when present).
+ * @param {object} args
+ * @param {object} exec
+ * @param {{ dshIm?: object }} deps
+ */
+export async function resolveCreateOrigin(args = {}, exec = {}, deps = {}) {
+  const explicit = normalizeOrigin(args.origin)
+  if (explicit) return explicit
+
+  const sessionId = typeof args.origin_session_id === 'string'
+    ? args.origin_session_id.trim()
+    : (typeof args.originSessionId === 'string' ? args.originSessionId.trim() : '')
+  const callerId = sessionId || callerSessionId(exec)
+  if (!callerId) return null
+
+  const dshIm = deps.dshIm
+  if (dshIm && typeof dshIm.resolveSessionPeer === 'function') {
+    try {
+      const peer = await dshIm.resolveSessionPeer(callerId)
+      const slim = slimPeer(peer)
+      if (slim) {
+        return normalizeOrigin({ kind: 'im', sessionId: callerId, peer: slim })
+      }
+    } catch {
+      // fall through to web origin
+    }
+  }
+  return normalizeOrigin({ kind: 'web', sessionId: callerId })
+}
+
 /**
  * Resolve delivery for cron_create: explicit args win; else IM peer → matching
  * or auto-created 投递目标; else dsh.
@@ -301,6 +386,17 @@ export async function resolveCreateDelivery(args = {}, exec = {}, deps = {}) {
 
 const IM_MAX_CHARS = 3500
 
+/**
+ * Shared body for IM delivery and session mirror (without @mention prefix).
+ * @param {object} job
+ * @param {string} [summary]
+ */
+export function formatRunResultBody(job, summary) {
+  const text = String(summary || '').trim() || `(定时任务「${job?.name || ''}」已完成，无文本摘要)`
+  const clipped = text.length > IM_MAX_CHARS ? `${text.slice(0, IM_MAX_CHARS)}…` : text
+  return `【定时任务 · ${job?.name || ''}】\n${clipped}`
+}
+
 /**
  * Send run summary to IM when job.delivery.kind === 'im'.
  * Group deliveries @mention the creator when mentionJid was captured at create time.
@@ -314,17 +410,165 @@ export async function deliverRunToIm(job, summary, deps = {}) {
     error.code = 'IM_UNAVAILABLE'
     throw error
   }
-  const text = String(summary || '').trim() || `(定时任务「${job.name}」已完成，无文本摘要)`
-  const clipped = text.length > IM_MAX_CHARS ? `${text.slice(0, IM_MAX_CHARS)}…` : text
-  const header = `【定时任务 · ${job.name}】\n`
+  const headerAndBody = formatRunResultBody(job, summary)
   const mentionJid = typeof delivery.mentionJid === 'string' ? delivery.mentionJid.trim() : ''
-  let body = `${header}${clipped}`
+  let body = headerAndBody
   const options = {}
   if (mentionJid && /@(s\.whatsapp\.net|lid)$/i.test(mentionJid)) {
     const token = mentionJid.slice(0, mentionJid.indexOf('@'))
-    body = `@${token}\n${header}${clipped}`
+    body = `@${token}\n${headerAndBody}`
     options.mentions = [mentionJid]
   }
   await dshIm.send(delivery.botId, delivery.targetId, body, options)
   return { sent: true, mentioned: Boolean(options.mentions) }
 }
+
+/**
+ * Resolve which live/effective session should receive a mirrored run summary.
+ * Prefer the current IM conversation binding over a stale origin.sessionId.
+ * @param {object} job
+ * @param {{ dshIm?: object }} deps
+ * @returns {Promise<{ sessionId: string, via: string } | null>}
+ */
+export async function resolveMirrorSession(job, deps = {}) {
+  const dshIm = deps.dshIm
+  const origin = normalizeOrigin(job?.origin)
+  const delivery = job?.delivery
+
+  if (origin?.peer?.botId && origin.peer.conversationKey
+    && dshIm && typeof dshIm.resolveConversationSession === 'function') {
+    try {
+      const hit = await dshIm.resolveConversationSession(
+        origin.peer.botId,
+        origin.peer.conversationKey,
+      )
+      const sessionId = typeof hit?.sessionId === 'string' ? hit.sessionId.trim() : ''
+      if (sessionId) return { sessionId, via: 'conversation' }
+    } catch {
+      // try target / origin fallbacks
+    }
+  }
+
+  if (delivery?.kind === 'im' && delivery.botId && delivery.targetId
+    && dshIm && typeof dshIm.resolveTargetSession === 'function') {
+    try {
+      const hit = await dshIm.resolveTargetSession(delivery.botId, delivery.targetId)
+      const sessionId = typeof hit?.sessionId === 'string' ? hit.sessionId.trim() : ''
+      if (sessionId) return { sessionId, via: 'target' }
+    } catch {
+      // fall through
+    }
+  }
+
+  if (origin?.sessionId) return { sessionId: origin.sessionId, via: 'origin' }
+  return null
+}
+
+/**
+ * Append the run summary into the effective origin/IM session without waking a turn.
+ * Prefer a live agent; otherwise resume the persisted session (never create — that
+ * id already belongs to the origin chat).
+ * @param {object} job
+ * @param {string} [summary]
+ * @param {{
+ *   dshIm?: object,
+ *   getAgents?: () => object | undefined,
+ *   pluginName?: string,
+ *   newId?: () => string,
+ * }} deps
+ */
+export async function mirrorRunToSession(job, summary, deps = {}) {
+  const target = await resolveMirrorSession(job, deps)
+  if (!target?.sessionId) {
+    return { mirrored: false, skipped: true, reason: 'no_target' }
+  }
+  const agents = typeof deps.getAgents === 'function' ? deps.getAgents() : undefined
+  if (!agents) {
+    return {
+      mirrored: false,
+      skipped: true,
+      reason: 'agents_unavailable',
+      sessionId: target.sessionId,
+      via: target.via,
+    }
+  }
+
+  let agent = typeof agents.get === 'function' ? agents.get(target.sessionId) : null
+  let resumed = false
+  if (!agent && typeof agents.resume === 'function') {
+    try {
+      const handle = await agents.resume({ resumeSessionId: target.sessionId })
+      agent = handle?.agent || null
+      resumed = Boolean(agent)
+    } catch (error) {
+      return {
+        mirrored: false,
+        skipped: true,
+        reason: 'session_unavailable',
+        sessionId: target.sessionId,
+        via: target.via,
+        error: error instanceof Error ? error.message : String(error),
+      }
+    }
+  }
+  if (!agent) {
+    return {
+      mirrored: false,
+      skipped: true,
+      reason: 'session_unavailable',
+      sessionId: target.sessionId,
+      via: target.via,
+    }
+  }
+
+  const text = formatRunResultBody(job, summary)
+  const plugin = typeof deps.pluginName === 'string' && deps.pluginName.trim()
+    ? deps.pluginName.trim()
+    : 'dsh-ops-cron'
+  const id = typeof deps.newId === 'function' ? deps.newId() : `cron-mirror-${Date.now()}`
+  const message = {
+    id,
+    role: 'user',
+    content: [{ type: 'text', text }],
+    source: { kind: 'plugin', plugin },
+  }
+
+  try {
+    if (typeof agent.session?.append === 'function') {
+      agent.session.append('user/message', message, { surfaceOp: 'append' })
+      return {
+        mirrored: true,
+        sessionId: target.sessionId,
+        via: target.via,
+        method: 'append',
+        resumed,
+      }
+    }
+    if (typeof agent.inject === 'function') {
+      agent.inject(message)
+      return {
+        mirrored: true,
+        sessionId: target.sessionId,
+        via: target.via,
+        method: 'inject',
+        resumed,
+      }
+    }
+  } catch (error) {
+    return {
+      mirrored: false,
+      skipped: true,
+      reason: 'mirror_failed',
+      sessionId: target.sessionId,
+      via: target.via,
+      error: error instanceof Error ? error.message : String(error),
+    }
+  }
+  return {
+    mirrored: false,
+    skipped: true,
+    reason: 'no_append',
+    sessionId: target.sessionId,
+    via: target.via,
+  }
+}
diff --git a/lib/fire.js b/lib/fire.js
index 6bb7431..624b654 100644
--- a/lib/fire.js
+++ b/lib/fire.js
@@ -65,6 +65,7 @@ export function publicJob(job) {
         ...job.delivery.mentionName ? { mentionName: job.delivery.mentionName } : {},
       }
       : { kind: 'dsh' },
+    ...job.origin ? { origin: job.origin } : {},
     schedule: job.schedule,
     createdAt: job.createdAt,
     updatedAt: job.updatedAt,
diff --git a/lib/host.js b/lib/host.js
index ed4d235..a1c1412 100644
--- a/lib/host.js
+++ b/lib/host.js
@@ -8,7 +8,7 @@ import { mkdir } from 'node:fs/promises'
 import { homedir } from 'node:os'
 import { basename, join } from 'node:path'
 import { claimOccurrence, executeClaimedRun, extractAssistantText, interruptActiveRuns, publicJob, settleRun, TITLE_PREFIX } from './fire.js'
-import { deliverRunToIm, mergeDeliveryMention } from './delivery.js'
+import { deliverRunToIm, mergeDeliveryMention, mirrorRunToSession, normalizeOrigin } from './delivery.js'
 import { workspaceVisibleIds } from './isolation.js'
 import { decideDispatch, nextFire, validateSchedule } from './scheduler.js'
 import {
@@ -112,6 +112,7 @@ function runView(run) {
  * @param {string} [options.filePath]
  * @param {object} [options.sessionPort] { createAndPrompt, archiveSession, waitForTurn }
  * @param {() => object|undefined} [options.getDshIm] soft-injected proactive IM API
+ * @param {() => object|undefined} [options.getAgents] soft-injected agents service for session mirror
  * @param {{ warn?: Function, info?: Function }} [options.logger]
  * @param {number} [options.tickIntervalMs]
  */
@@ -121,6 +122,7 @@ export function createHostService(options = {}) {
   const store = options.store || createStore({ filePath })
   const sessionPort = options.sessionPort || null
   const getDshIm = typeof options.getDshIm === 'function' ? options.getDshIm : () => undefined
+  const getAgents = typeof options.getAgents === 'function' ? options.getAgents : () => undefined
   const logger = options.logger || console
   const tickIntervalMs = Number(options.tickIntervalMs) > 0 ? Number(options.tickIntervalMs) : 15_000
   let timer = null
@@ -144,6 +146,36 @@ export function createHostService(options = {}) {
     }
   }
 
+  async function maybeMirrorResult(job, run) {
+    if (!job || !run || run.status === 'skipped') return
+    try {
+      const result = await mirrorRunToSession(job, run.summary || run.error || '', {
+        dshIm: getDshIm(),
+        getAgents,
+        pluginName: PLUGIN_NAME,
+        newId: () => randomUUID(),
+      })
+      if (result?.mirrored) {
+        logger.info?.(`[dsh-ops-cron] mirrored run ${run.id} → session ${result.sessionId} via ${result.via} (${result.method}${result.resumed ? ', resumed' : ''})`)
+      } else if (result?.reason && result.reason !== 'no_target') {
+        logger.warn?.(`[dsh-ops-cron] mirror skipped for run ${run.id}: ${result.reason}${result.sessionId ? ` session=${result.sessionId}` : ''}${result.error ? ` (${result.error})` : ''}`)
+      } else if (!result?.skipped) {
+        logger.warn?.(`[dsh-ops-cron] mirror incomplete for run ${run.id}: ${result?.reason || 'unknown'}`)
+      }
+    } catch (error) {
+      logger.warn?.(`[dsh-ops-cron] mirror failed for job ${job.id}: ${error instanceof Error ? error.message : error}`)
+    }
+  }
+
+  async function settleAndNotify(jobId, runId, claimedDecision) {
+    const state = await snapshot()
+    const run = (state.runs || []).find((row) => row.id === runId)
+    const job = getJob(state, jobId)
+    await maybeDeliverIm(job, run)
+    await maybeMirrorResult(job, run)
+    return { job: jobView(job), run: runView(run), decision: claimedDecision }
+  }
+
   async function createJob(input) {
     const t = now()
     let created
@@ -178,11 +210,15 @@ export function createHostService(options = {}) {
         delivery: patch.delivery !== undefined
           ? mergeDeliveryMention(job.delivery, patch.delivery)
           : job.delivery,
+        origin: patch.origin !== undefined
+          ? (normalizeOrigin(patch.origin) || undefined)
+          : job.origin,
       }
       const record = createJobRecord(nextInput, current, t)
       record.createdAt = job.createdAt
       record.lastRunAt = job.lastRunAt
       record.lastStatus = job.lastStatus
+      if (patch.origin === undefined && job.origin) record.origin = job.origin
       if (patch.schedule === undefined && patch.enabled === undefined) {
         record.nextRunAt = job.nextRunAt
       }
@@ -246,13 +282,9 @@ export function createHostService(options = {}) {
       }
       const settled = await store.mutate((current) => settleRun(current, run.id, terminal, now()))
       run = (settled.runs || []).find((row) => row.id === claimed.run.id)
-      const job = getJob(settled, jobId)
-      await maybeDeliverIm(job, run)
-      return { job: jobView(job), run: runView(run), decision: claimed.decision }
+      return settleAndNotify(jobId, run.id, claimed.decision)
     }
-    const job = getJob(executed, jobId)
-    await maybeDeliverIm(job, run)
-    return { job: jobView(job), run: runView(run), decision: claimed.decision }
+    return settleAndNotify(jobId, claimed.run.id, claimed.decision)
   }
 
   async function tick() {
diff --git a/lib/index.d.ts b/lib/index.d.ts
index f117b0a..6794c52 100644
--- a/lib/index.d.ts
+++ b/lib/index.d.ts
@@ -42,5 +42,10 @@ export const TITLE_PREFIX: string
 export function claimOccurrence(state: object, jobId: string, now: number, trigger: string, policies?: object): object
 export function executeClaimedRun(state: object, runId: string, deps: object): Promise<object>
 export function normalizeDelivery(input?: object): { kind: 'dsh' | 'im', botId?: string, targetId?: string }
+export function normalizeOrigin(input?: object): { kind: 'web' | 'im', sessionId?: string, peer?: object } | null
 export function resolveCreateDelivery(args?: object, exec?: object, deps?: object): Promise<{ kind: 'dsh' | 'im', botId?: string, targetId?: string }>
+export function resolveCreateOrigin(args?: object, exec?: object, deps?: object): Promise<{ kind: 'web' | 'im', sessionId?: string, peer?: object } | null>
+export function resolveMirrorSession(job: object, deps?: object): Promise<{ sessionId: string, via: string } | null>
+export function formatRunResultBody(job: object, summary?: string): string
 export function deliverRunToIm(job: object, summary?: string, deps?: object): Promise<object>
+export function mirrorRunToSession(job: object, summary?: string, deps?: object): Promise<object>
diff --git a/lib/index.js b/lib/index.js
index 74ee89e..3c2afb6 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -51,8 +51,13 @@ export { normalizeJobModel } from './store.js'
 export { claimOccurrence, executeClaimedRun, extractAssistantText, TITLE_PREFIX } from './fire.js'
 export {
   deliverRunToIm,
+  formatRunResultBody,
+  mirrorRunToSession,
   normalizeDelivery,
+  normalizeOrigin,
   resolveCreateDelivery,
+  resolveCreateOrigin,
+  resolveMirrorSession,
 } from './delivery.js'
 
 function loadPkg(id) {
@@ -131,10 +136,12 @@ function registerWebRoute(ctx, handler) {
 export function apply(ctx, config = {}) {
   const entry = resolveConfig(config)
   const getDshIm = () => tryGet(ctx, 'dshIm')
+  const getAgents = () => tryGet(ctx, 'agents')
   const getAgentPresets = () => tryGet(ctx, 'agentPresets')
   const service = createHostService({
     sessionPort: makeLiveSessionPort(ctx),
     getDshIm,
+    getAgents,
     logger: ctx.logger,
   })
 
diff --git a/lib/store.js b/lib/store.js
index 5cdbd71..b82d7c2 100644
--- a/lib/store.js
+++ b/lib/store.js
@@ -8,7 +8,7 @@ import { dirname, join } from 'node:path'
 import { randomUUID } from 'node:crypto'
 import { applyRunIsolation, recordHiddenSession } from './isolation.js'
 import { nextFire, validateSchedule } from './scheduler.js'
-import { normalizeDelivery } from './delivery.js'
+import { normalizeDelivery, normalizeOrigin } from './delivery.js'
 import { normalizeAgentPresetId } from './preset.js'
 
 export const STORE_VERSION = 1
@@ -95,6 +95,7 @@ export function createJobRecord(input, state, now) {
   const timeoutMinutes = Number(input.timeoutMinutes)
   const model = normalizeJobModel(input)
   const delivery = normalizeDelivery(input.delivery)
+  const origin = normalizeOrigin(input.origin)
   const agentPreset = normalizeAgentPresetId(input.agentPreset ?? input.agent_preset)
   const job = {
     id: String(input.id || newId()),
@@ -110,6 +111,7 @@ export function createJobRecord(input, state, now) {
     reasoningEffort: model.reasoningEffort,
     agentPreset,
     delivery,
+    ...origin ? { origin } : {},
     schedule: schedule.kind === 'cron'
       ? { kind: 'cron', expr: schedule.expr, timezone: schedule.timezone }
       : { kind: 'at', at: new Date(schedule.at).toISOString(), timezone: schedule.timezone },
diff --git a/lib/tools.js b/lib/tools.js
index e9d30b9..b88376b 100644
--- a/lib/tools.js
+++ b/lib/tools.js
@@ -4,7 +4,7 @@
  */
 
 import { formatInZone, resolveTodayAt } from './scheduler.js'
-import { deliveryLine, resolveCreateDelivery } from './delivery.js'
+import { deliveryLine, resolveCreateDelivery, resolveCreateOrigin } from './delivery.js'
 import { resolveCreateAgentPreset } from './preset.js'
 
 const JOB_SCHEMA = {
@@ -22,6 +22,7 @@ const JOB_SCHEMA = {
     reasoningEffort: { type: 'string' },
     agentPreset: { type: 'string' },
     delivery: { type: 'object', additionalProperties: true },
+    origin: { type: 'object', additionalProperties: true },
     schedule: { type: 'object', additionalProperties: true },
     createdAt: { type: 'number' },
     updatedAt: { type: 'number' },
@@ -204,6 +205,7 @@ export function cronToolDefinitions(service, deps = {}) {
         const timeout = Number(args.timeout_minutes)
         try {
           const delivery = await resolveCreateDelivery(args, exec, { dshIm: getDshIm() })
+          const origin = await resolveCreateOrigin(args, exec, { dshIm: getDshIm() })
           const agentPreset = await resolveCreateAgentPreset(args, exec, {
             dshIm: getDshIm(),
             agentPresets: getAgentPresets(),
@@ -217,6 +219,7 @@ export function cronToolDefinitions(service, deps = {}) {
             timeoutMinutes: Number.isFinite(timeout) && timeout > 0 ? timeout : undefined,
             enabled: args.enabled !== false,
             delivery,
+            ...origin ? { origin } : {},
             agentPreset,
           })
           return { job }
diff --git a/test/delivery.test.js b/test/delivery.test.js
index 1075d77..631bce9 100644
--- a/test/delivery.test.js
+++ b/test/delivery.test.js
@@ -3,8 +3,13 @@ import test from 'node:test'
 import {
   matchTargetForPeer,
   normalizeDelivery,
+  normalizeOrigin,
   resolveCreateDelivery,
+  resolveCreateOrigin,
+  resolveMirrorSession,
+  formatRunResultBody,
   deliverRunToIm,
+  mirrorRunToSession,
 } from '../lib/delivery.js'
 
 test('normalizeDelivery defaults to dsh', () => {
@@ -19,6 +24,26 @@ test('normalizeDelivery requires botId+targetId for im', () => {
   )
 })
 
+test('normalizeOrigin pins web and im shapes', () => {
+  assert.equal(normalizeOrigin(null), null)
+  assert.deepEqual(
+    normalizeOrigin({ kind: 'web', sessionId: 'sess-web' }),
+    { kind: 'web', sessionId: 'sess-web' },
+  )
+  assert.deepEqual(
+    normalizeOrigin({
+      kind: 'im',
+      sessionId: 'sess-im',
+      peer: { botId: 'bot_1', conversationKey: 'direct:86138@s.whatsapp.net', kind: 'direct' },
+    }),
+    {
+      kind: 'im',
+      sessionId: 'sess-im',
+      peer: { botId: 'bot_1', conversationKey: 'direct:86138@s.whatsapp.net', kind: 'direct' },
+    },
+  )
+})
+
 test('matchTargetForPeer matches whatsapp jid from conversationKey', () => {
   const peer = { botId: 'bot_1', conversationKey: 'direct:8613800000000@s.whatsapp.net' }
   const targets = [
@@ -55,6 +80,37 @@ test('resolveCreateDelivery auto-matches peer target', async () => {
   assert.deepEqual(delivery, { kind: 'im', botId: 'bot_1', targetId: 'wa-dm' })
 })
 
+test('resolveCreateOrigin captures im peer from caller session', async () => {
+  const dshIm = {
+    resolveSessionPeer: async () => ({
+      botId: 'bot_1',
+      conversationKey: 'group:120363@g.us:user:86138@s.whatsapp.net',
+      conversationId: '120363@g.us',
+      kind: 'group',
+    }),
+  }
+  const origin = await resolveCreateOrigin({}, {
+    agent: { session: { id: 'sess-group' } },
+  }, { dshIm })
+  assert.deepEqual(origin, {
+    kind: 'im',
+    sessionId: 'sess-group',
+    peer: {
+      botId: 'bot_1',
+      conversationKey: 'group:120363@g.us:user:86138@s.whatsapp.net',
+      conversationId: '120363@g.us',
+      kind: 'group',
+    },
+  })
+})
+
+test('resolveCreateOrigin falls back to web when no peer', async () => {
+  const origin = await resolveCreateOrigin({}, {
+    agent: { session: { id: 'sess-web' } },
+  }, { dshIm: { resolveSessionPeer: async () => null } })
+  assert.deepEqual(origin, { kind: 'web', sessionId: 'sess-web' })
+})
+
 test('resolveCreateDelivery auto-creates group target when none exists', async () => {
   const created = []
   const dshIm = {
@@ -151,7 +207,6 @@ test('resolveCreateDelivery pins group creator mention from peer', async () => {
     kind: 'im',
     botId: 'bot_wa',
     targetId: 'ops-group',
-    // Prefer phone JID over LID so WhatsApp can show nickname + notify.
     mentionJid: '8613800000000@s.whatsapp.net',
     mentionName: 'Alice',
   })
@@ -196,3 +251,123 @@ test('deliverRunToIm sends via dshIm', async () => {
   assert.match(sent[0][2], /定时任务/)
   assert.match(sent[0][2], /hello world/)
 })
+
+test('resolveMirrorSession prefers live conversation binding over stale origin.sessionId', async () => {
+  const hit = await resolveMirrorSession({
+    origin: {
+      kind: 'im',
+      sessionId: 'stale-sess',
+      peer: { botId: 'bot_1', conversationKey: 'direct:86138@s.whatsapp.net' },
+    },
+    delivery: { kind: 'im', botId: 'bot_1', targetId: 'wa-dm' },
+  }, {
+    dshIm: {
+      resolveConversationSession: async () => ({
+        sessionId: 'live-sess',
+        botId: 'bot_1',
+        conversationKey: 'direct:86138@s.whatsapp.net',
+      }),
+    },
+  })
+  assert.deepEqual(hit, { sessionId: 'live-sess', via: 'conversation' })
+})
+
+test('resolveMirrorSession falls back to origin.sessionId', async () => {
+  const hit = await resolveMirrorSession({
+    origin: { kind: 'web', sessionId: 'origin-web' },
+    delivery: { kind: 'dsh' },
+  }, {})
+  assert.deepEqual(hit, { sessionId: 'origin-web', via: 'origin' })
+})
+
+test('mirrorRunToSession appends plugin notice without waking a turn', async () => {
+  const appended = []
+  const result = await mirrorRunToSession(
+    {
+      name: '日报',
+      origin: { kind: 'web', sessionId: 'origin-1' },
+      delivery: { kind: 'dsh' },
+    },
+    'line one',
+    {
+      getAgents: () => ({
+        get: () => ({
+          session: {
+            append: (...args) => { appended.push(args) },
+          },
+        }),
+      }),
+      newId: () => 'msg-1',
+      pluginName: 'dsh-ops-cron',
+    },
+  )
+  assert.equal(result.mirrored, true)
+  assert.equal(result.method, 'append')
+  assert.equal(appended.length, 1)
+  assert.equal(appended[0][0], 'user/message')
+  assert.match(appended[0][1].content[0].text, /日报/)
+  assert.match(appended[0][1].content[0].text, /line one/)
+  assert.equal(appended[0][1].source.kind, 'plugin')
+  assert.deepEqual(appended[0][2], { surfaceOp: 'append' })
+})
+
+test('mirrorRunToSession resumes a cold origin session instead of create', async () => {
+  const appended = []
+  const resumed = []
+  const result = await mirrorRunToSession(
+    {
+      name: '冷会话',
+      origin: { kind: 'web', sessionId: 'cold-1' },
+    },
+    'hello',
+    {
+      getAgents: () => ({
+        get: () => null,
+        create: async () => {
+          throw new Error('create must not be used for origin mirror')
+        },
+        resume: async (opts) => {
+          resumed.push(opts)
+          return {
+            agent: {
+              session: {
+                append: (...args) => { appended.push(args) },
+              },
+            },
+          }
+        },
+      }),
+      newId: () => 'msg-2',
+    },
+  )
+  assert.equal(result.mirrored, true)
+  assert.equal(result.resumed, true)
+  assert.deepEqual(resumed, [{ resumeSessionId: 'cold-1' }])
+  assert.equal(appended[0][0], 'user/message')
+})
+
+test('mirrorRunToSession skips when origin session is unavailable', async () => {
+  const result = await mirrorRunToSession(
+    {
+      name: 'gone',
+      origin: { kind: 'web', sessionId: 'missing' },
+    },
+    'x',
+    {
+      getAgents: () => ({
+        get: () => null,
+        resume: async () => {
+          throw new Error('not found')
+        },
+      }),
+    },
+  )
+  assert.equal(result.mirrored, false)
+  assert.equal(result.reason, 'session_unavailable')
+})
+
+test('formatRunResultBody matches IM delivery header', () => {
+  const body = formatRunResultBody({ name: '晨报' }, 'ok')
+  assert.match(body, /^【定时任务 · 晨报】\n/)
+  assert.match(body, /ok$/)
+})
diff --git a/test/package.test.js b/test/package.test.js
index 7e700e9..c76b7b6 100644
--- a/test/package.test.js
+++ b/test/package.test.js
@@ -44,6 +44,8 @@ test('installable bundle declares host apply, client half, unique id, and no @de
   const host = await readFile(join(root, 'lib/host.js'), 'utf8')
   assert.match(host, /agentDefaultModel/)
   assert.match(host, /deliverRunToIm/)
+  assert.match(host, /mirrorRunToSession/)
+  assert.match(host, /getAgents/)
   assert.match(host, /PLUGIN_NAME = 'dsh-ops-cron'/)
   assert.match(host, /API_PREFIX = '\/dsh-ops-cron'/)
   assert.match(host, /resolveSessionPlacement/)
@@ -68,7 +70,10 @@ test('installable bundle declares host apply, client half, unique id, and no @de
   assert.match(preset, /resolveCreateAgentPreset/)
   const delivery = await readFile(join(root, 'lib/delivery.js'), 'utf8')
   assert.match(delivery, /resolveCreateDelivery/)
+  assert.match(delivery, /resolveCreateOrigin/)
+  assert.match(delivery, /mirrorRunToSession/)
   assert.match(delivery, /deliverRunToIm/)
+  assert.match(client, /origin/)
   const prd = await readFile(join(root, 'docs/PRD.md'), 'utf8')
   assert.match(prd, /定时任务/)
   assert.match(prd, /dsh-schedule/)