diff --git a/k8s/projects-frontend/values.dev.yaml b/k8s/projects-frontend/values.dev.yaml
index 7845c7e5a..62f6d3376 100644
--- a/k8s/projects-frontend/values.dev.yaml
+++ b/k8s/projects-frontend/values.dev.yaml
@@ -5,6 +5,7 @@ config:
     NUXT_PUBLIC_APP_ENVIRONMENT: dev
     NUXT_APP_GOTENBERG_SERVER_URL: 'http://projects-gotenberg'
     NUXT_PUBLIC_APP_GOTENBERG_ENABLED: 'true'
+    NUXT_APP_LANGCHAIN_PROMPT: ''
 
 domain: k8s.lp-i.dev
 
diff --git a/k8s/projects-frontend/values.yaml b/k8s/projects-frontend/values.yaml
index 0a28cb28c..bc74cdd53 100644
--- a/k8s/projects-frontend/values.yaml
+++ b/k8s/projects-frontend/values.yaml
@@ -44,6 +44,7 @@ config:
     NUXT_APP_SORBOBOT_API_TRACE: ''
     NUXT_APP_GOTENBERG_SERVER_URL: ''
     NUXT_PUBLIC_APP_GOTENBERG_ENABLED: ''
+    NUXT_APP_LANGCHAIN_PROMPT: ''
 e2eEnv:
   nonSensitive:
     USER_ADMIN_EMAIL: testautomatatiquedministrateur1@outlook.fr
diff --git a/nuxt.config.ts b/nuxt.config.ts
index 6bb9c31a0..41b1dfd68 100644
--- a/nuxt.config.ts
+++ b/nuxt.config.ts
@@ -138,6 +138,7 @@ export default defineNuxtConfig({
     appMcpServerTrace: 0,
     appSorbobotApiTrace: 0,
     appGotenbergServerUrl: '',
+    appLangchainPrompt: '',
     public: {
       appVersion: '',
       appApiOrgCode: '',
diff --git a/package.json b/package.json
index 0afba92e5..7250f1371 100644
--- a/package.json
+++ b/package.json
@@ -42,6 +42,9 @@
     "@ckpack/vue-color": "^1.5.0",
     "@hocuspocus/provider": "^2.15.0",
     "@intlify/vue-i18n-loader": "^4.2.0",
+    "@langchain/core": "^1.1.17",
+    "@langchain/langgraph": "^1.1.2",
+    "@langchain/openai": "^1.2.3",
     "@mdi/font": "^6",
     "@modelcontextprotocol/sdk": "^1.20.2",
     "@nuxt/test-utils": "^3.19.2",
@@ -81,6 +84,7 @@
     "deep-chat": "^2.3.0",
     "es-toolkit": "^1.40.0",
     "highlight.js": "^11",
+    "langchain": "^1.2.14",
     "leaflet": "^1",
     "leaflet.markercluster": "^1.5.3",
     "lowlight": "^3.3.0",
@@ -97,6 +101,7 @@
     "remixicon": "^2",
     "sortablejs": "^1.15.2",
     "sortablejs-vue3": "^1.2.11",
+    "uuid": "^13.0.0",
     "vue": "^3.5.13",
     "vue-chart-3": "^3.1.8",
     "vue-drag-resize": "^1",
diff --git a/src/components/app/ChatBotDrawer.vue b/src/components/app/ChatBotDrawer.vue
index 33d35c82e..bd3a0429c 100644
--- a/src/components/app/ChatBotDrawer.vue
+++ b/src/components/app/ChatBotDrawer.vue
@@ -34,7 +34,8 @@ const emit = defineEmits(['close'])
 const IS_STREAMED = ref(true)
 
 const connectOptions = {
-  url: IS_STREAMED.value ? '/api/chat-stream' : '/api/chat',
+  // url: IS_STREAMED.value ? '/api/chat-stream' : '/api/chat',
+  url: '/api/chat-lg-stream',
   stream: IS_STREAMED.value,
 }
 const usersStore = useUsersStore()
@@ -127,6 +128,7 @@ const spinnerMD = `![](data:image/svg+xml;base64,${btoa(spinner)}) `
 // to handle 'meta' messages get replaced by next message
 let replacedByNext = false
 const responseInterceptor = (response) => {
+  console.log('ChatBotDrawer responseInterceptor', response)
   if (response.role === 'meta') {
     let text = spinnerMD + t(`chatbot.${response.text}`)
     if (response.is_done) {
@@ -145,9 +147,10 @@ const responseInterceptor = (response) => {
       role: 'assistant',
       text: IS_STREAMED.value ? response.done_text : response.text,
     })
-    conversationId.value = response.conversationId
     analytics.chatbot.receive(response)
   }
+  // console.log('Updated conversation', response.conversationId)
+  conversationId.value = response.conversationId
   const overwrite = replacedByNext
   // no way to know when a true message begin, so just assume next is not overwrite
   replacedByNext = false
diff --git a/src/server/routes/api/chat-lg-stream.ts b/src/server/routes/api/chat-lg-stream.ts
new file mode 100644
index 000000000..cf2f80b5c
--- /dev/null
+++ b/src/server/routes/api/chat-lg-stream.ts
@@ -0,0 +1,206 @@
+// import OpenAI from 'openai'
+import { ChatOpenAI } from '@langchain/openai'
+import { createAgent } from 'langchain'
+import { MemorySaver } from '@langchain/langgraph'
+import { SystemMessage, HumanMessage } from '@langchain/core/messages'
+import { v4 as uuidv4 } from 'uuid'
+const runtimeConfig = useRuntimeConfig()
+const {
+  // appOpenaiApiPromptId,
+  // appOpenaiApiPromptVersion,
+  appOpenaiApiKey,
+  appOpenaiApiVectorStoreId,
+  appMcpServerUrl,
+  appMcpServerTrace,
+  appSorbobotApiTrace,
+  appLangchainPrompt,
+} = runtimeConfig
+const { appChatbotEnabled } = runtimeConfig.public
+
+// Map conversationId to token and date for authed api requests in MCP
+export const tokenMap = new Map<string, { date: Date; token: string }>()
+export const checkpointer = new MemorySaver()
+
+export const traceMcp = (...args) => {
+  if (appMcpServerTrace) {
+    console.log('[MCP TRACE]', ...args)
+  }
+}
+
+export const traceSorbobot = (...args) => {
+  if (appSorbobotApiTrace) {
+    console.log('[Sorbobot TRACE]', ...args)
+  }
+}
+
+export default defineLazyEventHandler(() => {
+  console.log('appChatbotEnabled:', appChatbotEnabled, 'openaiApiKey:', !!appOpenaiApiKey)
+  return defineEventHandler(async (event) => {
+    // return 404 if not configured
+    if (!appOpenaiApiKey || !appChatbotEnabled) {
+      setResponseStatus(event, 404)
+      return
+    }
+
+    // clean up token map as a bonus
+    const now = new Date()
+    for (const [key, value] of tokenMap.entries()) {
+      const diff = now.getTime() - value.date.getTime()
+      if (diff > 60 * 60 * 1000) {
+        tokenMap.delete(key)
+      }
+    }
+
+    const tokenHeader = getRequestHeader(event, 'authorization') || ''
+    if (tokenHeader) {
+      traceMcp('chat-stream: got Authorization header provided')
+    } else {
+      traceMcp('chat-stream: no Authorization header provided')
+    }
+
+    setResponseHeader(event, 'Content-Type', 'text/event-stream')
+    setResponseHeader(event, 'Cache-Control', 'no-cache')
+    setResponseHeader(event, 'Connection', 'keep-alive')
+    setResponseStatus(event, 200)
+
+    const body = await readBody<{
+      messages: Array<{ role: string; text: string }>
+      conversationId?: string
+    }>(event)
+
+    const messages = body.messages || []
+
+    // TODO handle conversation on our side
+    // const openai = new OpenAI({
+    //   apiKey: appOpenaiApiKey,
+    // })
+    let conversationId = body.conversationId || null
+    if (!conversationId) {
+      // if no conversationId, we start a new conversation
+      conversationId = uuidv4()
+      console.log('Starting new conversation with id:', conversationId)
+    }
+
+    const tools = []
+
+    if (appMcpServerUrl) {
+      traceMcp('Adding MCP tool with server URL:', appMcpServerUrl)
+      tools.push({
+        type: 'mcp',
+        server_label: 'projects-local-mcp',
+        server_description:
+          'A MCP to fetch information about projects, people and groups on this Projects platform.',
+        server_url: appMcpServerUrl,
+        require_approval: 'never',
+        authorization: conversationId,
+      })
+    }
+
+    if (appOpenaiApiVectorStoreId) {
+      tools.push({
+        type: 'file_search',
+        vector_store_ids: [appOpenaiApiVectorStoreId],
+      })
+    }
+    const model = appOpenaiApiKey
+      ? new ChatOpenAI({
+          apiKey: appOpenaiApiKey,
+          model: 'gpt-4o-mini',
+          temperature: 0,
+        })
+      : null
+
+    const agent = createAgent({
+      model,
+      tools,
+      checkpointer,
+      systemPrompt: new SystemMessage({
+        content: [
+          {
+            type: 'text',
+            content: appLangchainPrompt,
+          },
+        ],
+      }),
+    })
+
+    traceMcp(
+      `Starting chat stream for conversation ${conversationId} with ${messages.length} messages`
+    )
+
+    tokenMap.set(conversationId, {
+      date: new Date(),
+      token: ('' + tokenHeader).replace('Bearer ', ''),
+    })
+    const config = {
+      configurable: { thread_id: conversationId },
+    }
+
+    /*
+      EXEMPLE OUTUT PUT TOKENS:
+
+      {
+      "type": "text",
+      "index": 0,
+      "text": " learning"
+      }
+      ][
+      {
+      "type": "text",
+      "index": 0,
+      "text": " environments"
+      }
+      ][
+      {
+      "type": "text",
+      "index": 0,
+      "text": "",
+      "annotations": [
+      {
+      "type": "citation",
+      "source": "file_citation",
+      "title": "FAQ - THE PROVEST PROJECT CONTEXT.txt",
+      "startIndex": 522,
+      "file_id": "file-R1phfjqpukKyqdBHFNRhm2"
+      }
+      ]
+      }
+      ]
+  */
+    // TODO: fix typescript mess with agent.stream return type
+    for await (const [token, metadata] of (await agent.stream(
+      { messages: messages.map((msg) => new HumanMessage(msg.text)) } as any,
+      { ...config, streamMode: 'messages' }
+      // ,{ options: { stream: true }, previous_response_id: conversationId,}
+    )) as AsyncIterableIterator<
+      [
+        {
+          contentBlocks?: Array<{ type: string; index: number; text: string }>
+        },
+        { status: string; langgraph_node?: any },
+      ]
+    >) {
+      // TODO: handle tools and reaoning chunks
+      // console.log('chunk from lg node', metadata.langgraph_node)
+      const content = token.contentBlocks || []
+      // sort in ascending index order and join texts (is it really necessary ?)
+      const ordered_content = content.sort((a, b) => a.index - b.index)
+      const text = ordered_content
+        .filter((part) => part.type == 'text')
+        .map((part) => part.text)
+        .join('')
+      const is_done = metadata.status === 'completed'
+      const role = 'ai'
+      event.node.res.write(
+        `data: ${JSON.stringify({
+          text,
+          role,
+          is_done,
+          conversationId,
+        })}\n\n`
+      )
+    }
+
+    event.node.res.end()
+  })
+})
diff --git a/yarn.lock b/yarn.lock
index 80a3d03bf..0c4857d25 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -286,6 +286,11 @@
   dependencies:
     keyv "^5.5.3"
 
+"@cfworker/json-schema@^4.0.2":
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/@cfworker/json-schema/-/json-schema-4.1.1.tgz#4a2a3947ee9fa7b7c24be981422831b8674c3be6"
+  integrity sha512-gAmrUZSGtKc3AiBL71iNWxDsyUC5uMaKKGdvzYsBoTW/xi42JQHl7eKV2OYzCUqvc+D2RCcf7EXY2iCyFIk6og==
+
 "@ckpack/vue-color@^1.5.0":
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/@ckpack/vue-color/-/vue-color-1.6.0.tgz#b1cce631b96a94905a0a46ca6b61454e023c36a4"
@@ -1276,6 +1281,57 @@
   resolved "https://registry.yarnpkg.com/@kwsites/promise-deferred/-/promise-deferred-1.1.1.tgz#8ace5259254426ccef57f3175bc64ed7095ed919"
   integrity sha512-GaHYm+c0O9MjZRu0ongGBRbinu8gVAMd2UZjji6jVmqKtZluZnptXGWhz1E8j8D2HJ3f/yMxKAUC0b+57wncIw==
 
+"@langchain/core@^1.1.17":
+  version "1.1.17"
+  resolved "https://registry.yarnpkg.com/@langchain/core/-/core-1.1.17.tgz#b5a9a9fb51e9f1963581d2f7ce1e22867865d8a6"
+  integrity sha512-g7/kcKbKEwNZSyyT7aT0utxn7wTOtKErqz0cL6VjrV4v/aOb9g+dKcfj17YkSm42YQmJp/rB2IXGc17vQPEBqA==
+  dependencies:
+    "@cfworker/json-schema" "^4.0.2"
+    ansi-styles "^5.0.0"
+    camelcase "6"
+    decamelize "1.2.0"
+    js-tiktoken "^1.0.12"
+    langsmith ">=0.4.0 <1.0.0"
+    mustache "^4.2.0"
+    p-queue "^6.6.2"
+    uuid "^10.0.0"
+    zod "^3.25.76 || ^4"
+
+"@langchain/langgraph-checkpoint@^1.0.0":
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/@langchain/langgraph-checkpoint/-/langgraph-checkpoint-1.0.0.tgz#ece2ede439d0d0b0b532c4be7817fd5029afe4f8"
+  integrity sha512-xrclBGvNCXDmi0Nz28t3vjpxSH6UYx6w5XAXSiiB1WEdc2xD2iY/a913I3x3a31XpInUW/GGfXXfePfaghV54A==
+  dependencies:
+    uuid "^10.0.0"
+
+"@langchain/langgraph-sdk@~1.5.5":
+  version "1.5.5"
+  resolved "https://registry.yarnpkg.com/@langchain/langgraph-sdk/-/langgraph-sdk-1.5.5.tgz#a84fe0f27e2ed6452a83106c3759d7673789a1f0"
+  integrity sha512-SyiAs6TVXPWlt/8cI9pj/43nbIvclY3ytKqUFbL5MplCUnItetEyqvH87EncxyVF5D7iJKRZRfSVYBMmOZbjbQ==
+  dependencies:
+    p-queue "^9.0.1"
+    p-retry "^7.1.1"
+    uuid "^13.0.0"
+
+"@langchain/langgraph@^1.1.2":
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/@langchain/langgraph/-/langgraph-1.1.2.tgz#9360e01a2f23f4d25a27adddc73ea38eb3d3a976"
+  integrity sha512-kpZCttZ0N+jHSl5Vh/zVNElD5SxGR4sTjjLiBC00aLGf9JK+Sa/XXO6Bsk3WWXFtA1dY+4tUzUqH0mAHfN0WvA==
+  dependencies:
+    "@langchain/langgraph-checkpoint" "^1.0.0"
+    "@langchain/langgraph-sdk" "~1.5.5"
+    "@standard-schema/spec" "1.1.0"
+    uuid "^10.0.0"
+
+"@langchain/openai@^1.2.3":
+  version "1.2.3"
+  resolved "https://registry.yarnpkg.com/@langchain/openai/-/openai-1.2.3.tgz#39f4b843ea72d71bf653aa21896f151311027e27"
+  integrity sha512-+bKR4+Obz5a/NHEw0bAm3f/s4k0cXc/g46ZRRXqjcyDYP+9wFarItvGNn6DEEk5S7pGp1QqApAQNt9IZk1Ic1Q==
+  dependencies:
+    js-tiktoken "^1.0.12"
+    openai "^6.16.0"
+    zod "^3.25.76 || ^4"
+
 "@lifeomic/attempt@^3.0.2":
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/@lifeomic/attempt/-/attempt-3.1.0.tgz#7fc703559177b81a008b9d263e3d9a001d11d08a"
@@ -2590,6 +2646,11 @@
   resolved "https://registry.yarnpkg.com/@speed-highlight/core/-/core-1.2.7.tgz#eeaa7c1e7198559abbb98e4acbc93d108d35f2d3"
   integrity sha512-0dxmVj4gxg3Jg879kvFS/msl4s9F3T9UXC1InxgOf7t5NvcPD97u/WTA5vL/IxWHMn7qSxBozqrnnE2wvl1m8g==
 
+"@standard-schema/spec@1.1.0":
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/@standard-schema/spec/-/spec-1.1.0.tgz#a79b55dbaf8604812f52d140b2c9ab41bc150bb8"
+  integrity sha512-l2aFy5jALhniG5HgqrD6jXLi/rUWrKvqN/qJx6yoJsgKhblVd+iqqU4RCXavm/jPityDo5TCvKMnpjKnOriy0w==
+
 "@standard-schema/spec@^1.0.0":
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/@standard-schema/spec/-/spec-1.0.0.tgz#f193b73dc316c4170f2e82a881da0f550d551b9c"
@@ -2995,6 +3056,11 @@
   resolved "https://registry.yarnpkg.com/@types/unist/-/unist-3.0.3.tgz#acaab0f919ce69cce629c2d4ed2eb4adc1b6c20c"
   integrity sha512-ko/gIFJRv177XgZsZcBwnqJN5x/Gien8qNOn0D5bQU/zAzVf9Zt3BlcUiLqhV9y4ARk0GbT3tnUiPNgnTXzc/Q==
 
+"@types/uuid@^10.0.0":
+  version "10.0.0"
+  resolved "https://registry.yarnpkg.com/@types/uuid/-/uuid-10.0.0.tgz#e9c07fe50da0f53dc24970cca94d619ff03f6f6d"
+  integrity sha512-7gqG38EyHgyP1S+7+xomFtL+ZNHcKv6DwNaCZmJmo1vgMugyF3TCnXVg4t1uk89mLNwnLtnY3TpOpCOyp1/xHQ==
+
 "@typescript-eslint/eslint-plugin@8.46.0", "@typescript-eslint/eslint-plugin@^8.46.0":
   version "8.46.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-8.46.0.tgz#fc90b35d8025b5eaa66b2f6c3859cd5381a1e751"
@@ -3635,6 +3701,11 @@ ansi-styles@^4.0.0, ansi-styles@^4.1.0:
   dependencies:
     color-convert "^2.0.1"
 
+ansi-styles@^5.0.0:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-5.2.0.tgz#07449690ad45777d1924ac2abb2fc8895dba836b"
+  integrity sha512-Cxwpt2SfTzTtXcfOlzGEee8O+c+MmUgGrNiBcXnuWxuFJHe6a5Hz7qwhwe5OgaSYI0IJvkLqWX1ASG+cJOkEiA==
+
 ansi-styles@^6.0.0, ansi-styles@^6.1.0, ansi-styles@^6.2.1:
   version "6.2.3"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-6.2.3.tgz#c044d5dcc521a076413472597a1acb1f103c4041"
@@ -4290,7 +4361,7 @@ base64-arraybuffer@^1.0.1:
   resolved "https://registry.yarnpkg.com/base64-arraybuffer/-/base64-arraybuffer-1.0.2.tgz#1c37589a7c4b0746e34bd1feb951da2df01c1bdc"
   integrity sha512-I3yl4r9QB5ZRY3XuJVEPfc2XhZO6YweFPI+UovAzn+8/hb3oJ6lnysaFcjVpkCPfVWFUDvoZ8kmVDP7WyRtYtQ==
 
-base64-js@^1.3.1:
+base64-js@^1.3.1, base64-js@^1.5.1:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.5.1.tgz#1b1b440160a5bf7ad40b650f095963481903930a"
   integrity sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA==
@@ -4508,16 +4579,16 @@ camelcase-keys@^7.0.0:
     quick-lru "^5.1.1"
     type-fest "^1.2.1"
 
+camelcase@6, camelcase@^6.3.0:
+  version "6.3.0"
+  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-6.3.0.tgz#5685b95eb209ac9c0c177467778c9c84df58ba9a"
+  integrity sha512-Gmy6FhYlCY7uOElZUSbxo2UCDH8owEk996gkbrpsgGtrJLM3J7jGxl9Ic7Qwwj4ivOE5AWZWRMecDdF7hqGjFA==
+
 camelcase@^5.0.0, camelcase@^5.3.1:
   version "5.3.1"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-5.3.1.tgz#e3c9b31569e106811df242f715725a1f4c494320"
   integrity sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==
 
-camelcase@^6.3.0:
-  version "6.3.0"
-  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-6.3.0.tgz#5685b95eb209ac9c0c177467778c9c84df58ba9a"
-  integrity sha512-Gmy6FhYlCY7uOElZUSbxo2UCDH8owEk996gkbrpsgGtrJLM3J7jGxl9Ic7Qwwj4ivOE5AWZWRMecDdF7hqGjFA==
-
 caniuse-api@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/caniuse-api/-/caniuse-api-3.0.0.tgz#5e4d90e2274961d46291997df599e3ed008ee4c0"
@@ -4564,7 +4635,7 @@ chalk@^2.0.1, chalk@^2.3.1:
     escape-string-regexp "^1.0.5"
     supports-color "^5.3.0"
 
-chalk@^4.0.0, chalk@^4.1.0:
+chalk@^4.0.0, chalk@^4.1.0, chalk@^4.1.2:
   version "4.1.2"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-4.1.2.tgz#aac4e2b7734a740867aeb16bf02aad556a1e7a01"
   integrity sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA==
@@ -4855,6 +4926,13 @@ consola@^3.2.3, consola@^3.4.0, consola@^3.4.2:
   resolved "https://registry.yarnpkg.com/consola/-/consola-3.4.2.tgz#5af110145397bb67afdab77013fdc34cae590ea7"
   integrity sha512-5IKcdX0nnYavi6G7TtOhwkYzyjfJlatbjMjuLSfE2kYT5pMDOilZ4OvMhi637CcDICTmz3wARPoyhqyX1Y+XvA==
 
+console-table-printer@^2.12.1:
+  version "2.15.0"
+  resolved "https://registry.yarnpkg.com/console-table-printer/-/console-table-printer-2.15.0.tgz#5c808204640b8f024d545bde8aabe5d344dfadc1"
+  integrity sha512-SrhBq4hYVjLCkBVOWaTzceJalvn5K1Zq5aQA6wXC/cYjI3frKWNPEMK3sZsJfNNQApvCQmgBcc13ZKmFj8qExw==
+  dependencies:
+    simple-wcswidth "^1.1.2"
+
 content-disposition@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/content-disposition/-/content-disposition-1.0.0.tgz#844426cb398f934caefcbb172200126bc7ceace2"
@@ -5240,7 +5318,7 @@ decamelize-keys@^1.1.0:
     decamelize "^1.1.0"
     map-obj "^1.0.0"
 
-decamelize@^1.1.0, decamelize@^1.2.0:
+decamelize@1.2.0, decamelize@^1.1.0, decamelize@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
   integrity sha512-z2S+W9X73hAUUki+N+9Za2lBlun89zigOyGrsax+KUQ6wKW4ZoWpEYBkGhQjwAjjDCkWxhY0VKEhk8wzY7F5cA==
@@ -5926,6 +6004,11 @@ event-target-shim@^5.0.0:
   resolved "https://registry.yarnpkg.com/event-target-shim/-/event-target-shim-5.0.1.tgz#5d4d3ebdf9583d63a5333ce2deb7480ab2b05789"
   integrity sha512-i/2XbnSz/uxRCU6+NdVJgKWDTM427+MqYbkQzD321DuCQJUqOuJKIA0IM2+W2xtYHdKOmZ4dR6fExsd4SXL+WQ==
 
+eventemitter3@^4.0.4:
+  version "4.0.7"
+  resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-4.0.7.tgz#2de9b68f6528d5644ef5c59526a1b4a07306169f"
+  integrity sha512-8guHBZCwKnFhYdHr2ysuRWErTwhoN2X8XELRlrRwpmfeY2jjuUN4taQMsULKUVo1K4DvZl+0pgfyoysHxvmvEw==
+
 eventemitter3@^5.0.1:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-5.0.1.tgz#53f5ffd0a492ac800721bb42c66b841de96423c4"
@@ -7014,6 +7097,11 @@ is-module@^1.0.0:
   resolved "https://registry.yarnpkg.com/is-module/-/is-module-1.0.0.tgz#3258fb69f78c14d5b815d664336b4cffb6441591"
   integrity sha512-51ypPSPCoTEIN9dy5Oy+h4pShgJmPCygKfyRCISBI+JoWT/2oJvK8QPxmwv7b/p239jXrm9M1mlQbyKJ5A152g==
 
+is-network-error@^1.1.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/is-network-error/-/is-network-error-1.3.0.tgz#2ce62cbca444abd506f8a900f39d20b898d37512"
+  integrity sha512-6oIwpsgRfnDiyEDLMay/GqCl3HoAtH5+RUKW29gYkL0QA+ipzpDLA16yQs7/RHCSu+BwgbJaOUqa4A99qNVQVw==
+
 is-number@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/is-number/-/is-number-7.0.0.tgz#7535345b896734d5f80c4d06c50955527a14f12b"
@@ -7216,6 +7304,13 @@ js-cookie@^3.0.5:
   resolved "https://registry.yarnpkg.com/js-cookie/-/js-cookie-3.0.5.tgz#0b7e2fd0c01552c58ba86e0841f94dc2557dcdbc"
   integrity sha512-cEiJEAEoIbWfCZYKWhVwFuvPX1gETRYPw6LlaTKoxD3s2AkXzkCjnp6h0V77ozyqj0jakteJ4YqDJT830+lVGw==
 
+js-tiktoken@^1.0.12:
+  version "1.0.21"
+  resolved "https://registry.yarnpkg.com/js-tiktoken/-/js-tiktoken-1.0.21.tgz#368a9957591a30a62997dd0c4cf30866f00f8221"
+  integrity sha512-biOj/6M5qdgx5TKjDnFT1ymSpM5tbd3ylwDtrQvFQSu0Z7bBYko2dF+W/aUkXUPuk6IVpRxk/3Q2sHOzGlS36g==
+  dependencies:
+    base64-js "^1.5.1"
+
 "js-tokens@^3.0.0 || ^4.0.0", js-tokens@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
@@ -7382,6 +7477,29 @@ known-css-properties@^0.37.0:
   resolved "https://registry.yarnpkg.com/known-css-properties/-/known-css-properties-0.37.0.tgz#10ebe49b9dbb6638860ff8a002fb65a053f4aec5"
   integrity sha512-JCDrsP4Z1Sb9JwG0aJ8Eo2r7k4Ou5MwmThS/6lcIe1ICyb7UBJKGRIUUdqc2ASdE/42lgz6zFUnzAIhtXnBVrQ==
 
+langchain@^1.2.14:
+  version "1.2.14"
+  resolved "https://registry.yarnpkg.com/langchain/-/langchain-1.2.14.tgz#185a39349cc3be4d8b3400f62ea9fe3ae124db7e"
+  integrity sha512-nLtc7ZQT8VUor6eT7Yg7d43W0HDZ3wIujN2uonnvUrycK2P+i5TRDAhlcqEcGviZdVqk0TZMXcQ3IXrtSHnbvQ==
+  dependencies:
+    "@langchain/langgraph" "^1.1.2"
+    "@langchain/langgraph-checkpoint" "^1.0.0"
+    langsmith ">=0.4.0 <1.0.0"
+    uuid "^10.0.0"
+    zod "^3.25.76 || ^4"
+
+"langsmith@>=0.4.0 <1.0.0":
+  version "0.4.9"
+  resolved "https://registry.yarnpkg.com/langsmith/-/langsmith-0.4.9.tgz#91479dc2d2a12d99560d4f89c1d136348e0262f4"
+  integrity sha512-p2/BbVDAfgiqGx8iZzPoWQ+z/Actl6isbDJcogApYIz9UcMNu0jcDzGbFivJny2vihF0gMT6yhUIOZCsqZnNsg==
+  dependencies:
+    "@types/uuid" "^10.0.0"
+    chalk "^4.1.2"
+    console-table-printer "^2.12.1"
+    p-queue "^6.6.2"
+    semver "^7.6.3"
+    uuid "^10.0.0"
+
 launch-editor@^2.11.1:
   version "2.11.1"
   resolved "https://registry.yarnpkg.com/launch-editor/-/launch-editor-2.11.1.tgz#61a0b7314a42fd84a6cbb564573d9e9ffcf3d72b"
@@ -8037,6 +8155,11 @@ muggle-string@^0.4.1:
   resolved "https://registry.yarnpkg.com/muggle-string/-/muggle-string-0.4.1.tgz#3b366bd43b32f809dc20659534dd30e7c8a0d328"
   integrity sha512-VNTrAak/KhO2i8dqqnqnAHOa3cYBwXEZe9h+D5h/1ZqFSTEFHdM65lR7RoIqq3tBBYavsOXV84NoHXZ0AkPyqQ==
 
+mustache@^4.2.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/mustache/-/mustache-4.2.0.tgz#e5892324d60a12ec9c2a73359edca52972bf6f64"
+  integrity sha512-71ippSywq5Yb7/tVYyGbkBggbU8H3u5Rz56fH60jGFgr8uHwxs+aSKeqmluIVzM0m0kB7xQjKS6qPfd0b2ZoqQ==
+
 nanoid@^3.3.11:
   version "3.3.11"
   resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.3.11.tgz#4f4f112cefbe303202f2199838128936266d185b"
@@ -8477,6 +8600,11 @@ openai@^5.23.0:
   resolved "https://registry.yarnpkg.com/openai/-/openai-5.23.2.tgz#f13e2dc2ef6b88aab6a9b97cdc68d41a1d083c68"
   integrity sha512-MQBzmTulj+MM5O8SKEk/gL8a7s5mktS9zUtAkU257WjvobGc9nKcBuVwjyEEcb9SI8a8Y2G/mzn3vm9n1Jlleg==
 
+openai@^6.16.0:
+  version "6.16.0"
+  resolved "https://registry.yarnpkg.com/openai/-/openai-6.16.0.tgz#53661d9f6307dc7523e89637ff7c6ccd0be16c67"
+  integrity sha512-fZ1uBqjFUjXzbGc35fFtYKEOxd20kd9fDpFeqWtsOZWiubY8CZ1NAlXHW3iathaFvqmNtCWMIsosCuyeI7Joxg==
+
 optionator@^0.9.3:
   version "0.9.4"
   resolved "https://registry.yarnpkg.com/optionator/-/optionator-0.9.4.tgz#7ea1c1a5d91d764fb282139c88fe11e182a3a734"
@@ -8640,6 +8768,11 @@ oxc-walker@^0.5.2:
   dependencies:
     magic-regexp "^0.10.0"
 
+p-finally@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/p-finally/-/p-finally-1.0.0.tgz#3fbcfb15b899a44123b34b6dcc18b724336a2cae"
+  integrity sha512-LICb2p9CB7FS+0eR1oqWnHhp0FljGLZCWBE9aix0Uye9W8LTQPwMTYVGWQWIw9RdQiDg4+epXQODwIYJtSJaow==
+
 p-finally@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/p-finally/-/p-finally-2.0.1.tgz#bd6fcaa9c559a096b680806f4d657b3f0f240561"
@@ -8680,6 +8813,41 @@ p-map@^5.1.0:
   dependencies:
     aggregate-error "^4.0.0"
 
+p-queue@^6.6.2:
+  version "6.6.2"
+  resolved "https://registry.yarnpkg.com/p-queue/-/p-queue-6.6.2.tgz#2068a9dcf8e67dd0ec3e7a2bcb76810faa85e426"
+  integrity sha512-RwFpb72c/BhQLEXIZ5K2e+AhgNVmIejGlTgiB9MzZ0e93GRvqZ7uSi0dvRF7/XIXDeNkra2fNHBxTyPDGySpjQ==
+  dependencies:
+    eventemitter3 "^4.0.4"
+    p-timeout "^3.2.0"
+
+p-queue@^9.0.1:
+  version "9.1.0"
+  resolved "https://registry.yarnpkg.com/p-queue/-/p-queue-9.1.0.tgz#846e517c461fb6e3cf8fc09904e57d342ac448b2"
+  integrity sha512-O/ZPaXuQV29uSLbxWBGGZO1mCQXV2BLIwUr59JUU9SoH76mnYvtms7aafH/isNSNGwuEfP6W/4xD0/TJXxrizw==
+  dependencies:
+    eventemitter3 "^5.0.1"
+    p-timeout "^7.0.0"
+
+p-retry@^7.1.1:
+  version "7.1.1"
+  resolved "https://registry.yarnpkg.com/p-retry/-/p-retry-7.1.1.tgz#7470fdecb1152ba50f1334e48378c9e401330e24"
+  integrity sha512-J5ApzjyRkkf601HpEeykoiCvzHQjWxPAHhyjFcEUP2SWq0+35NKh8TLhpLw+Dkq5TZBFvUM6UigdE9hIVYTl5w==
+  dependencies:
+    is-network-error "^1.1.0"
+
+p-timeout@^3.2.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/p-timeout/-/p-timeout-3.2.0.tgz#c7e17abc971d2a7962ef83626b35d635acf23dfe"
+  integrity sha512-rhIwUycgwwKcP9yTOOFK/AKsAopjjCakVqLHePO3CC6Mir1Z99xT+R63jZxAT5lFZLa2inS5h+ZS2GvR99/FBg==
+  dependencies:
+    p-finally "^1.0.0"
+
+p-timeout@^7.0.0:
+  version "7.0.1"
+  resolved "https://registry.yarnpkg.com/p-timeout/-/p-timeout-7.0.1.tgz#95680a6aa693c530f14ac337b8bd32d4ec6ae4f0"
+  integrity sha512-AxTM2wDGORHGEkPCt8yqxOTMgpfbEHqF51f/5fJCmwFC3C/zNcGT63SymH2ttOAaiIws2zVg4+izQCjrakcwHg==
+
 p-try@^2.0.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/p-try/-/p-try-2.2.0.tgz#cb2868540e313d61de58fafbe35ce9004d5540e6"
@@ -10080,6 +10248,11 @@ simple-git@^3.28.0:
     "@kwsites/promise-deferred" "^1.1.1"
     debug "^4.4.0"
 
+simple-wcswidth@^1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/simple-wcswidth/-/simple-wcswidth-1.1.2.tgz#66722f37629d5203f9b47c5477b1225b85d6525b"
+  integrity sha512-j7piyCjAeTDSjzTSQ7DokZtMNwNlEAyxqSZeCS+CXH7fJ4jx3FuJ/mTW3mE+6JLs4VJBbcll0Kjn+KXI5t21Iw==
+
 sirv@^3.0.1, sirv@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/sirv/-/sirv-3.0.2.tgz#f775fccf10e22a40832684848d636346f41cd970"
@@ -11170,6 +11343,16 @@ util-deprecate@^1.0.1, util-deprecate@^1.0.2, util-deprecate@~1.0.1:
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
   integrity sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==
 
+uuid@^10.0.0:
+  version "10.0.0"
+  resolved "https://registry.yarnpkg.com/uuid/-/uuid-10.0.0.tgz#5a95aa454e6e002725c79055fd42aaba30ca6294"
+  integrity sha512-8XkAphELsDnEGrDxUOHB3RGvXz6TeuYSGEZBOjtTtPm2lwhGBjLgOzLHB63IUWfBpNucQjND6d3AOudO+H3RWQ==
+
+uuid@^13.0.0:
+  version "13.0.0"
+  resolved "https://registry.yarnpkg.com/uuid/-/uuid-13.0.0.tgz#263dc341b19b4d755eb8fe36b78d95a6b65707e8"
+  integrity sha512-XQegIaBTVUjSHliKqcnFqYypAd4S+WCYt5NIeRs6w/UAry7z8Y9j5ZwRRL4kzq9U3sD6v+85er9FvkEaBpji2w==
+
 uuid@^8.3.2:
   version "8.3.2"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-8.3.2.tgz#80d5b5ced271bb9af6c445f21a1a04c606cefbe2"
@@ -11877,3 +12060,8 @@ zod@^3.23.8:
   version "3.25.76"
   resolved "https://registry.yarnpkg.com/zod/-/zod-3.25.76.tgz#26841c3f6fd22a6a2760e7ccb719179768471e34"
   integrity sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==
+
+"zod@^3.25.76 || ^4":
+  version "4.3.6"
+  resolved "https://registry.yarnpkg.com/zod/-/zod-4.3.6.tgz#89c56e0aa7d2b05107d894412227087885ab112a"
+  integrity sha512-rftlrkhHZOcjDwkGlnUtZZkvaPHCsDATp4pGpuOOMDaTdDDXF91wuVDJoWoPsKX/3YPQ5fHuF3STjcYyKr+Qhg==