Add turbo, fix formatting

.gitignore

@@ -5,4 +5,5 @@ dist
 .venv
 __pycache__
 .langgraph_api
-.uv
+.uv
+.turbo

CONTRIBUTING.md

@@ -0,0 +1,36 @@
+# Contributing to Agent Protocol
+
+👋 Hi there! Thank you for being interested in contributing to LangGraph.
+As an open source project in a rapidly developing field, we are extremely open
+to contributions, whether it be in the form of a new feature, improved infra, or better documentation.
+
+To contribute to this project, please follow a ["fork and pull request"](https://docs.github.com/en/get-started/quickstart/contributing-to-projects) workflow. Please do not try to push directly to this repo unless you are a maintainer.
+
+## 🗺️ Contributing Guidelines
+
+Our [issues](https://github.com/langchain-ai/langgraphjs/issues) page contains
+with bugs, improvements, and feature requests.
+
+If you start working on an issue, please comment and a maintainer can assign it to you.
+
+If you are adding an issue, please try to keep it focused on a single modular bug/improvement/feature.
+If the two issues are related, or blocking, please link them rather than keep them as one single one.
+
+We will try to keep these issues as up to date as possible, though
+with the rapid rate of development in this field some may get out of date.
+If you notice this happening, please just let us know.
+
+## 🚀 Setup
+
+To get started, you will need to install the dependencies for the project. To do so, run:
+
+```bash
+pnpm install
+```
+
+To build the project, run:
+
+```bash
+pnpm build
+```
+

LICENSE

@@ -0,0 +1,21 @@
+MIT License Copyright (c) 2025 LangChain
+
+Permission is hereby granted, free
+of charge, to any person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to the
+following conditions:
+
+The above copyright notice and this permission notice
+(including the next paragraph) shall be included in all copies or substantial
+portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO
+EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

README.md

@@ -1,3 +1,3 @@
 # LangGraph.js API and CLI
 
-This repository contains the source code for the in-memory implementation of the LangGraph.js API and the LangGraph.js CLI tools.
+This repository contains the source code for the in-memory implementation of the LangGraph.js API and the LangGraph.js CLI tools.

libs/create-langgraph/.prettierrc

@@ -0,0 +1 @@
+{}

libs/create-langgraph/LICENSE

@@ -0,0 +1,21 @@
+MIT License Copyright (c) 2025 LangChain
+
+Permission is hereby granted, free
+of charge, to any person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to the
+following conditions:
+
+The above copyright notice and this permission notice
+(including the next paragraph) shall be included in all copies or substantial
+portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO
+EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

libs/create-langgraph/package.json

@@ -11,10 +11,13 @@
     "dist"
   ],
   "scripts": {
+    "clean": "npx -y bun scripts/clean.mjs",
     "cli": "tsx src/cli.mts",
     "cli:watch": "tsx watch src/cli.mts",
-    "build": "rm -rf dist && tsc --outDir dist",
-    "prepack": "pnpm run build"
+    "build": "npx -y bun scripts/build.mjs",
+    "prepack": "pnpm run build",
+    "format": "prettier --write .",
+    "format:check": "prettier --check ."
   },
   "dependencies": {
     "@clack/prompts": "^0.9.1",

libs/create-langgraph/scripts/build.mjs

@@ -0,0 +1,8 @@
+#!/usr/bin/env bun
+function $(strings, ...rest) {
+  console.log("$", ...strings.raw);
+  return Bun.$(strings, ...rest);
+}
+
+await $`rm -rf dist`;
+await $`pnpm tsc --outDir dist`;

libs/create-langgraph/scripts/build.ps1

@@ -1,8 +0,0 @@
-Set-PSDebug -Trace 1
-$ErrorActionPreference = "Stop"
-
-Remove-Item -Path "dist" -Recurse -Force -ErrorAction SilentlyContinue
-tsc --outDir dist
-
-Move-Item -Path "dist/src/*" -Destination "dist"
-Remove-Item -Path "dist/src","dist/tests" -Recurse -Force -ErrorAction SilentlyContinue

libs/create-langgraph/scripts/build.sh

@@ -1,9 +0,0 @@
-#!/bin/bash
-set -e # Exit on error
-set -x # Print commands before execution
-
-rm -rf dist
-tsc --outDir dist
-
-mv dist/src/* dist
-rm -rf dist/src dist/tests

libs/create-langgraph/scripts/clean.mjs

@@ -0,0 +1,7 @@
+#!/usr/bin/env bun
+function $(strings, ...rest) {
+  console.log("$", ...strings.raw);
+  return Bun.$(strings, ...rest);
+}
+
+await $`rm -rf dist`;

libs/create-langgraph/scripts/spawn.mjs

@@ -1,16 +0,0 @@
-#!/usr/bin/env node
-import { spawn } from "node:child_process";
-import * as process from "node:process";
-
-const file = process.argv.at(-1);
-
-const proc =
-  process.platform === "win32"
-    ? spawn(
-        "powershell.exe",
-        ["-ExecutionPolicy", "Bypass", "-File", `scripts/${file}.ps1`],
-        { stdio: "inherit" }
-      )
-    : spawn("bash", ["-c", `scripts/${file}.sh`], { stdio: "inherit" });
-
-proc.on("exit", (code) => process.exit(code ?? 0));

libs/create-langgraph/src/cli.mts

@@ -56,7 +56,7 @@ const TEMPLATE_ID_TO_CONFIG = Object.entries(TEMPLATES).reduce(
       });
     return acc;
   },
-  {} as Record<string, [string, string, string]>
+  {} as Record<string, [string, string, string]>,
 );
 
 const TEMPLATE_IDS = Object.keys(TEMPLATE_ID_TO_CONFIG);
@@ -84,7 +84,7 @@ async function downloadAndExtract(url: string, targetPath: string) {
 
     // Move files from the extracted directory to target path
     const extractedDir = (await fs.readdir(targetPath)).find((f) =>
-      f.endsWith("-main")
+      f.endsWith("-main"),
     );
     if (extractedDir) {
       const fullExtractedPath = path.join(targetPath, extractedDir);
@@ -93,16 +93,16 @@ async function downloadAndExtract(url: string, targetPath: string) {
         files.map((file) =>
           fs.rename(
             path.join(fullExtractedPath, file),
-            path.join(targetPath, file)
-          )
-        )
+            path.join(targetPath, file),
+          ),
+        ),
       );
       await fs.rmdir(fullExtractedPath);
     }
   } catch (error: unknown) {
     if (error instanceof Error) {
       throw new Error(
-        `Failed to download and extract template: ${error.message}`
+        `Failed to download and extract template: ${error.message}`,
       );
     }
     throw new Error("Failed to download and extract template");
@@ -181,14 +181,14 @@ async function createNew(projectPath?: string, templateId?: string) {
             - cd ${path.relative(process.cwd(), absolutePath)}
             - yarn install
             - npx @langchain/langgraph-cli@latest dev
-          `
+          `,
         )
       : null;
 
   outro(
     [`Project created successfully at ${color.green(absolutePath)}`, guide]
       .filter(Boolean)
-      .join("\n\n")
+      .join("\n\n"),
   );
 }
 
@@ -205,7 +205,7 @@ const program = new Command()
       if (!config) {
         console.error(`Invalid template ID "${options.template}"`);
         console.error(
-          `Available options:\n${TEMPLATE_IDS.map((id) => `- ${id}`).join("\n")}`
+          `Available options:\n${TEMPLATE_IDS.map((id) => `- ${id}`).join("\n")}`,
         );
         process.exit(1);
       }

libs/create-langgraph/src/utils/analytics.mts

@@ -35,7 +35,7 @@ let analyticsPromise = Promise.resolve();
 
 export function withAnalytics<TCommand extends Command<any, any, any>>(
   fn?: (command: TCommand) => Record<string, boolean>,
-  options?: { name?: string }
+  options?: { name?: string },
 ) {
   if (process.env.LANGGRAPH_CLI_NO_ANALYTICS === "1") {
     return () => void 0;
@@ -50,7 +50,7 @@ export function withAnalytics<TCommand extends Command<any, any, any>>(
         cli_version: version,
         cli_command: options?.name ?? actionCommand.name(),
         params: fn?.(actionCommand) ?? {},
-      }).catch(() => {})
+      }).catch(() => {}),
     );
   };
 }

libs/create-langgraph/src/utils/version.mts

@@ -4,7 +4,7 @@ import * as url from "node:url";
 async function getVersion() {
   try {
     const packageJson = url.fileURLToPath(
-      new URL("../../package.json", import.meta.url)
+      new URL("../../package.json", import.meta.url),
     );
     const { version } = JSON.parse(await fs.readFile(packageJson, "utf-8"));
     return version;

libs/langgraph-api/.prettierrc

@@ -0,0 +1 @@
+{}

libs/langgraph-api/README.md

@@ -1,3 +1,3 @@
 # LangGraph.js API
 
-In-memory implementation of the LangGraph.js API.
+In-memory implementation of the LangGraph.js API.

libs/langgraph-api/package.json

@@ -11,13 +11,16 @@
     "dist/"
   ],
   "scripts": {
+    "clean": "npx -y bun scripts/clean.mjs",
     "build": "npx -y bun scripts/build.mjs",
     "dev": "tsx ./tests/utils.server.mts",
     "prepack": "pnpm run build",
     "typecheck": "tsc --noEmit",
     "test": "vitest",
     "test:parser": "vitest run ./tests/parser.test.mts --testTimeout 15000",
-    "test:api": "npx -y bun scripts/test.mjs"
+    "test:api": "npx -y bun scripts/test.mjs",
+    "format": "prettier --write .",
+    "format:check": "prettier --check ."
   },
   "dependencies": {
     "@babel/code-frame": "^7.26.2",

libs/langgraph-api/scripts/clean.mjs

@@ -0,0 +1,7 @@
+#!/usr/bin/env bun
+function $(strings, ...rest) {
+  console.log("$", ...strings.raw);
+  return Bun.$(strings, ...rest);
+}
+
+await $`rm -rf dist`;

libs/langgraph-api/scripts/test.mjs

@@ -12,6 +12,6 @@ await Promise.race([
   (async () => {
     await $`bun x wait-port -t 12000 localhost:2024`;
     await $`pnpm vitest run --exclude ./tests/parser.test.mts"`;
-    process.exit(0)
+    process.exit(0);
   })(),
 ]);

libs/langgraph-api/src/api/assistants.mts

@@ -27,7 +27,7 @@ api.post(
     });
 
     return c.json(assistant);
-  }
+  },
 );
 
 api.post(
@@ -48,7 +48,7 @@ api.post(
     }
 
     return c.json(result);
-  }
+  },
 );
 
 api.get("/assistants/:assistant_id", async (c) => {
@@ -72,7 +72,7 @@ api.patch(
     const payload = c.req.valid("json");
 
     return c.json(await Assistants.patch(assistantId, payload));
-  }
+  },
 );
 
 const RunnableConfigSchema = z.object({
@@ -86,7 +86,7 @@ const RunnableConfigSchema = z.object({
 });
 
 const getRunnableConfig = (
-  userConfig: z.infer<typeof RunnableConfigSchema> | null | undefined
+  userConfig: z.infer<typeof RunnableConfigSchema> | null | undefined,
 ) => {
   if (!userConfig) return {};
   return {
@@ -111,9 +111,9 @@ api.get(
 
     const graph = getGraph(assistant.graph_id);
     return c.json(
-      graph.getGraph({ ...getRunnableConfig(assistant.config), xray }).toJSON()
+      graph.getGraph({ ...getRunnableConfig(assistant.config), xray }).toJSON(),
     );
-  }
+  },
 );
 
 api.get("/assistants/:assistant_id/schemas", async (c) => {
@@ -140,7 +140,7 @@ api.get(
   "/assistants/:assistant_id/subgraphs/:namespace?",
   zValidator(
     "param",
-    z.object({ assistant_id: z.string(), namespace: z.string().optional() })
+    z.object({ assistant_id: z.string(), namespace: z.string().optional() }),
   ),
   zValidator("query", z.object({ recurse: schemas.coercedBoolean.optional() })),
   async (c) => {
@@ -173,7 +173,7 @@ api.get(
     }
 
     return c.json(Object.fromEntries(result));
-  }
+  },
 );
 
 api.post(
@@ -184,7 +184,7 @@ api.post(
     const assistantId = getAssistantId(c.req.param("assistant_id"));
     const { version } = c.req.valid("json");
     return c.json(await Assistants.setLatest(assistantId, version));
-  }
+  },
 );
 
 api.post(
@@ -195,7 +195,7 @@ api.post(
       limit: z.number().min(1).max(1000).optional().default(10),
       offset: z.number().min(0).optional().default(0),
       metadata: z.record(z.unknown()).optional(),
-    })
+    }),
   ),
   async (c) => {
     // Get Assistant Versions
@@ -206,9 +206,9 @@ api.post(
         limit,
         offset,
         metadata,
-      })
+      }),
     );
-  }
+  },
 );
 
 export default api;

libs/langgraph-api/src/api/runs.mts

@@ -19,7 +19,7 @@ const api = new Hono();
 
 const createValidRun = async (
   threadId: string | undefined,
-  payload: z.infer<typeof schemas.RunCreate>
+  payload: z.infer<typeof schemas.RunCreate>,
 ): Promise<Run> => {
   const { assistant_id: assistantId, ...run } = payload;
   const runId = uuid4();
@@ -78,7 +78,7 @@ const createValidRun = async (
       preventInsertInInflight,
       afterSeconds: payload.after_seconds,
       ifNotExists: payload.if_not_exists,
-    }
+    },
   );
 
   if (first?.run_id === runId) {
@@ -91,7 +91,7 @@ const createValidRun = async (
         await Runs.cancel(
           threadId,
           inflight.map((run) => run.run_id),
-          { action: multitaskStrategy }
+          { action: multitaskStrategy },
         );
       } catch (error) {
         logger.warn(
@@ -100,7 +100,7 @@ const createValidRun = async (
             error,
             run_ids: inflight.map((run) => run.run_id),
             thread_id: threadId,
-          }
+          },
         );
       }
     }
@@ -129,7 +129,7 @@ api.post(
   async () => {
     // Search Crons
     throw new HTTPException(500, { message: "Not implemented" });
-  }
+  },
 );
 
 api.delete(
@@ -138,7 +138,7 @@ api.delete(
   async () => {
     // Delete Cron
     throw new HTTPException(500, { message: "Not implemented" });
-  }
+  },
 );
 
 api.post(
@@ -148,7 +148,7 @@ api.post(
   async () => {
     // Create Thread Cron
     throw new HTTPException(500, { message: "Not implemented" });
-  }
+  },
 );
 
 api.post("/runs/stream", zValidator("json", schemas.RunCreate), async (c) => {
@@ -166,7 +166,7 @@ api.post("/runs/stream", zValidator("json", schemas.RunCreate), async (c) => {
       for await (const { event, data } of Runs.Stream.join(
         run.run_id,
         undefined,
-        { cancelOnDisconnect, ignore404: true }
+        { cancelOnDisconnect, ignore404: true },
       )) {
         await stream.writeSSE({ data: serialiseAsDict(data), event });
       }
@@ -197,10 +197,10 @@ api.post(
     // Batch Runs
     const payload = c.req.valid("json");
     const runs = await Promise.all(
-      payload.map((run) => createValidRun(undefined, run))
+      payload.map((run) => createValidRun(undefined, run)),
     );
     return jsonExtra(c, runs);
-  }
+  },
 );
 
 api.get(
@@ -213,7 +213,7 @@ api.get(
       offset: z.coerce.number().nullish(),
       status: z.string().nullish(),
       metadata: z.record(z.string(), z.unknown()).nullish(),
-    })
+    }),
   ),
   async (c) => {
     // List runs
@@ -231,7 +231,7 @@ api.get(
     ]);
 
     return jsonExtra(c, runs);
-  }
+  },
 );
 
 api.post(
@@ -245,7 +245,7 @@ api.post(
 
     const run = await createValidRun(thread_id, payload);
     return jsonExtra(c, run);
-  }
+  },
 );
 
 api.post(
@@ -268,7 +268,7 @@ api.post(
         for await (const { event, data } of Runs.Stream.join(
           run.run_id,
           thread_id,
-          { cancelOnDisconnect }
+          { cancelOnDisconnect },
         )) {
           await stream.writeSSE({ data: serialiseAsDict(data), event });
         }
@@ -276,7 +276,7 @@ api.post(
         logError(error, { prefix: "Error streaming run" });
       }
     });
-  }
+  },
 );
 
 api.post(
@@ -290,14 +290,14 @@ api.post(
 
     const run = await createValidRun(thread_id, payload);
     return waitKeepAlive(c, Runs.join(run.run_id, thread_id));
-  }
+  },
 );
 
 api.get(
   "/threads/:thread_id/runs/:run_id",
   zValidator(
     "param",
-    z.object({ thread_id: z.string().uuid(), run_id: z.string().uuid() })
+    z.object({ thread_id: z.string().uuid(), run_id: z.string().uuid() }),
   ),
   async (c) => {
     const { thread_id, run_id } = c.req.valid("param");
@@ -307,45 +307,45 @@ api.get(
     ]);
 
     return jsonExtra(c, run);
-  }
+  },
 );
 
 api.delete(
   "/threads/:thread_id/runs/:run_id",
   zValidator(
     "param",
-    z.object({ thread_id: z.string().uuid(), run_id: z.string().uuid() })
+    z.object({ thread_id: z.string().uuid(), run_id: z.string().uuid() }),
   ),
   async (c) => {
     // Delete Run
     const { thread_id, run_id } = c.req.valid("param");
     await Runs.delete(run_id, thread_id);
     return c.body(null, 204);
-  }
+  },
 );
 
 api.get(
   "/threads/:thread_id/runs/:run_id/join",
   zValidator(
     "param",
-    z.object({ thread_id: z.string().uuid(), run_id: z.string().uuid() })
+    z.object({ thread_id: z.string().uuid(), run_id: z.string().uuid() }),
   ),
   async (c) => {
     // Join Run Http
     const { thread_id, run_id } = c.req.valid("param");
     return jsonExtra(c, await Runs.join(run_id, thread_id));
-  }
+  },
 );
 
 api.get(
   "/threads/:thread_id/runs/:run_id/stream",
   zValidator(
     "param",
-    z.object({ thread_id: z.string().uuid(), run_id: z.string().uuid() })
+    z.object({ thread_id: z.string().uuid(), run_id: z.string().uuid() }),
   ),
   zValidator(
     "query",
-    z.object({ cancel_on_disconnect: schemas.coercedBoolean.optional() })
+    z.object({ cancel_on_disconnect: schemas.coercedBoolean.optional() }),
   ),
   async (c) => {
     // Stream Run Http
@@ -362,21 +362,21 @@ api.get(
         await stream.writeSSE({ data: serialiseAsDict(data), event });
       }
     });
-  }
+  },
 );
 
 api.post(
   "/threads/:thread_id/runs/:run_id/cancel",
   zValidator(
     "param",
-    z.object({ thread_id: z.string().uuid(), run_id: z.string().uuid() })
+    z.object({ thread_id: z.string().uuid(), run_id: z.string().uuid() }),
   ),
   zValidator(
     "query",
     z.object({
       wait: z.coerce.boolean().optional().default(false),
       action: z.enum(["interrupt", "rollback"]).optional().default("interrupt"),
-    })
+    }),
   ),
   async (c) => {
     // Cancel Run Http
@@ -386,7 +386,7 @@ api.post(
     await Runs.cancel(thread_id, [run_id], { action });
     if (wait) await Runs.join(run_id, thread_id);
     return c.body(null, wait ? 204 : 202);
-  }
+  },
 );
 
 export default api;

libs/langgraph-api/src/api/store.mts

@@ -54,7 +54,7 @@ api.post(
         maxDepth: payload.max_depth,
       }),
     });
-  }
+  },
 );
 
 api.post(
@@ -73,7 +73,7 @@ api.post(
     });
 
     return c.json({ items: items.map(mapItemsToApi) });
-  }
+  },
 );
 
 api.put("/store/items", zValidator("json", schemas.StorePutItem), async (c) => {
@@ -93,7 +93,7 @@ api.delete(
     if (payload.namespace) validateNamespace(payload.namespace);
     await storageStore.delete(payload.namespace ?? [], payload.key);
     return c.body(null, 204);
-  }
+  },
 );
 
 api.get(
@@ -105,7 +105,7 @@ api.get(
     const key = payload.key;
     const namespace = payload.namespace;
     return c.json(mapItemsToApi(await storageStore.get(namespace, key)));
-  }
+  },
 );
 
 export default api;

libs/langgraph-api/src/api/threads.mts

@@ -46,7 +46,7 @@ api.post(
     }
 
     return jsonExtra(c, result);
-  }
+  },
 );
 
 api.get(
@@ -54,7 +54,7 @@ api.get(
   zValidator("param", z.object({ thread_id: z.string().uuid() })),
   zValidator(
     "query",
-    z.object({ subgraphs: schemas.coercedBoolean.optional() })
+    z.object({ subgraphs: schemas.coercedBoolean.optional() }),
   ),
   async (c) => {
     // Get Latest Thread State
@@ -62,11 +62,11 @@ api.get(
     const { subgraphs } = c.req.valid("query");
 
     const state = stateSnapshotToThreadState(
-      await Threads.State.get({ configurable: { thread_id } }, { subgraphs })
+      await Threads.State.get({ configurable: { thread_id } }, { subgraphs }),
     );
 
     return jsonExtra(c, state);
-  }
+  },
 );
 
 api.post(
@@ -84,7 +84,7 @@ api.post(
       as_node: z.string().optional(),
       checkpoint_id: z.string().optional(),
       checkpoint: schemas.CheckpointSchema.nullish(),
-    })
+    }),
   ),
   async (c) => {
     // Update Thread State
@@ -104,22 +104,25 @@ api.post(
     const inserted = await Threads.State.post(
       config,
       payload.values,
-      payload.as_node
+      payload.as_node,
     );
 
     return jsonExtra(c, inserted);
-  }
+  },
 );
 
 api.get(
   "/threads/:thread_id/state/:checkpoint_id",
   zValidator(
     "param",
-    z.object({ thread_id: z.string().uuid(), checkpoint_id: z.string().uuid() })
+    z.object({
+      thread_id: z.string().uuid(),
+      checkpoint_id: z.string().uuid(),
+    }),
   ),
   zValidator(
     "query",
-    z.object({ subgraphs: schemas.coercedBoolean.optional() })
+    z.object({ subgraphs: schemas.coercedBoolean.optional() }),
   ),
   async (c) => {
     // Get Thread State At Checkpoint
@@ -128,12 +131,12 @@ api.get(
     const state = stateSnapshotToThreadState(
       await Threads.State.get(
         { configurable: { thread_id, checkpoint_id } },
-        { subgraphs }
-      )
+        { subgraphs },
+      ),
     );
 
     return jsonExtra(c, state);
-  }
+  },
 );
 
 api.post(
@@ -144,7 +147,7 @@ api.post(
     z.object({
       subgraphs: schemas.coercedBoolean.optional(),
       checkpoint: schemas.CheckpointSchema.nullish(),
-    })
+    }),
   ),
   async (c) => {
     // Get Thread State At Checkpoint Post
@@ -154,12 +157,12 @@ api.post(
     const state = stateSnapshotToThreadState(
       await Threads.State.get(
         { configurable: { thread_id, ...checkpoint } },
-        { subgraphs }
-      )
+        { subgraphs },
+      ),
     );
 
     return jsonExtra(c, state);
-  }
+  },
 );
 
 api.get(
@@ -174,7 +177,7 @@ api.get(
         .default("10")
         .transform((value) => parseInt(value, 10)),
       before: z.string().optional(),
-    })
+    }),
   ),
   async (c) => {
     // Get Thread History
@@ -183,10 +186,10 @@ api.get(
 
     const states = await Threads.State.list(
       { configurable: { thread_id, checkpoint_ns: "" } },
-      { limit, before }
+      { limit, before },
     );
     return jsonExtra(c, states.map(stateSnapshotToThreadState));
-  }
+  },
 );
 
 api.post(
@@ -205,7 +208,7 @@ api.post(
           checkpoint_map: z.record(z.string(), z.unknown()).optional(),
         })
         .optional(),
-    })
+    }),
   ),
   async (c) => {
     // Get Thread History Post
@@ -214,11 +217,11 @@ api.post(
 
     const states = await Threads.State.list(
       { configurable: { thread_id, checkpoint_ns: "", ...checkpoint } },
-      { limit, before, metadata }
+      { limit, before, metadata },
     );
 
     return jsonExtra(c, states.map(stateSnapshotToThreadState));
-  }
+  },
 );
 
 api.get(
@@ -228,7 +231,7 @@ api.get(
     // Get Thread
     const { thread_id } = c.req.valid("param");
     return jsonExtra(c, await Threads.get(thread_id));
-  }
+  },
 );
 
 api.delete(
@@ -239,7 +242,7 @@ api.delete(
     const { thread_id } = c.req.valid("param");
     await Threads.delete(thread_id);
     return new Response(null, { status: 204 });
-  }
+  },
 );
 
 api.patch(
@@ -251,7 +254,7 @@ api.patch(
     const { thread_id } = c.req.valid("param");
     const { metadata } = c.req.valid("json");
     return jsonExtra(c, await Threads.patch(thread_id, { metadata }));
-  }
+  },
 );
 
 api.post(
@@ -261,7 +264,7 @@ api.post(
     // Copy Thread
     const { thread_id } = c.req.valid("param");
     return jsonExtra(c, await Threads.copy(thread_id));
-  }
+  },
 );
 
 export default api;

libs/langgraph-api/src/cli/spawn.mts

@@ -15,7 +15,7 @@ export async function spawnServer(
   options: {
     pid: number;
     projectCwd: string;
-  }
+  },
 ) {
   const localUrl = `http://${args.host}:${args.port}`;
   const studioUrl = `${context.hostUrl}/studio?baseUrl=${localUrl}`;
@@ -39,7 +39,7 @@ For production use, please use LangGraph Cloud.
     process.execPath,
     [
       fileURLToPath(
-        new URL("../../cli.mjs", import.meta.resolve("tsx/esm/api"))
+        new URL("../../cli.mjs", import.meta.resolve("tsx/esm/api")),
       ),
       "watch",
       "--clear-screen=false",
@@ -53,6 +53,6 @@ For production use, please use LangGraph Cloud.
         cwd: options.projectCwd,
       }),
     ],
-    { stdio: ["inherit", "inherit", "inherit", "ipc"], env: context.env }
+    { stdio: ["inherit", "inherit", "inherit", "ipc"], env: context.env },
   );
 }

libs/langgraph-api/src/cli/utils/ipc/client.mts

@@ -1,17 +1,17 @@
 // MIT License
-// 
+//
 // Copyright (c) Hiroki Osame <hiroki.osame@gmail.com>
-// 
+//
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal
 // in the Software without restriction, including without limitation the rights
 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 // copies of the Software, and to permit persons to whom the Software is
 // furnished to do so, subject to the following conditions:
-// 
+//
 // The above copyright notice and this permission notice shall be included in all
 // copies or substantial portions of the Software.
-// 
+//
 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
@@ -19,7 +19,7 @@
 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 // SOFTWARE.
-// 
+//
 // https://github.com/privatenumber/tsx/tree/28a3e7d2b8fd72b683aab8a98dd1fcee4624e4cb
 import net from "node:net";
 import { getPipePath } from "./utils/get-pipe-path.mjs";

libs/langgraph-api/src/cli/utils/ipc/utils/temporary-directory.mts

@@ -1,17 +1,17 @@
 // MIT License
-// 
+//
 // Copyright (c) Hiroki Osame <hiroki.osame@gmail.com>
-// 
+//
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal
 // in the Software without restriction, including without limitation the rights
 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 // copies of the Software, and to permit persons to whom the Software is
 // furnished to do so, subject to the following conditions:
-// 
+//
 // The above copyright notice and this permission notice shall be included in all
 // copies or substantial portions of the Software.
-// 
+//
 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
@@ -19,7 +19,7 @@
 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 // SOFTWARE.
-// 
+//
 // https://github.com/privatenumber/tsx/tree/28a3e7d2b8fd72b683aab8a98dd1fcee4624e4cb
 import path from "node:path";
 import os from "node:os";

libs/langgraph-api/src/graph/load.mts

@@ -23,7 +23,7 @@ export const GRAPH_SPEC: Record<string, GraphSpec> = {};
 export const GRAPH_SCHEMA: Record<string, Record<string, GraphSchema>> = {};
 
 export const NAMESPACE_GRAPH = uuid.parse(
-  "6ba7b821-9dad-11d1-80b4-00c04fd430c8"
+  "6ba7b821-9dad-11d1-80b4-00c04fd430c8",
 );
 
 const ConfigSchema = z.record(z.unknown());
@@ -35,7 +35,7 @@ export const getAssistantId = (graphId: string) => {
 
 export async function registerFromEnv(
   specs: Record<string, string>,
-  options: { cwd: string }
+  options: { cwd: string },
 ) {
   const envConfig = process.env.LANGGRAPH_CONFIG
     ? ConfigSchema.parse(JSON.parse(process.env.LANGGRAPH_CONFIG))
@@ -65,7 +65,7 @@ export async function registerFromEnv(
       });
 
       return resolved;
-    })
+    }),
   );
 }
 
@@ -74,7 +74,7 @@ export function getGraph(
   options?: {
     checkpointer?: BaseCheckpointSaver | null;
     store?: BaseStore;
-  }
+  },
 ) {
   if (!GRAPHS[graphId])
     throw new HTTPException(404, { message: `Graph "${graphId}" not found` });

libs/langgraph-api/src/graph/load.utils.mts

@@ -8,7 +8,7 @@ import type { JSONSchema7 } from "json-schema";
 
 export const GRAPHS: Record<string, CompiledGraph<string>> = {};
 export const NAMESPACE_GRAPH = uuid.parse(
-  "6ba7b821-9dad-11d1-80b4-00c04fd430c8"
+  "6ba7b821-9dad-11d1-80b4-00c04fd430c8",
 );
 
 export interface GraphSchema {
@@ -25,7 +25,7 @@ export interface GraphSpec {
 
 export async function resolveGraph(
   spec: string,
-  options: { cwd: string; onlyFilePresence?: false }
+  options: { cwd: string; onlyFilePresence?: false },
 ): Promise<{
   sourceFile: string;
   exportSymbol: string;
@@ -34,12 +34,12 @@ export async function resolveGraph(
 
 export async function resolveGraph(
   spec: string,
-  options: { cwd: string; onlyFilePresence: true }
+  options: { cwd: string; onlyFilePresence: true },
 ): Promise<{ sourceFile: string; exportSymbol: string; resolved: undefined }>;
 
 export async function resolveGraph(
   spec: string,
-  options: { cwd: string; onlyFilePresence?: boolean }
+  options: { cwd: string; onlyFilePresence?: boolean },
 ) {
   const [userFile, exportSymbol] = spec.split(":", 2);
   const sourceFile = path.resolve(options.cwd, userFile);
@@ -84,7 +84,7 @@ export async function runGraphSchemaWorker(spec: GraphSpec) {
 
   return await new Promise<Record<string, GraphSchema>>((resolve, reject) => {
     const worker = new Worker(
-      fileURLToPath(new URL("./parser/parser.worker.mjs", import.meta.url))
+      fileURLToPath(new URL("./parser/parser.worker.mjs", import.meta.url)),
     );
 
     // Set a timeout to reject if the worker takes too long

libs/langgraph-api/src/graph/parser/parser.mts

@@ -28,7 +28,7 @@ export class SubgraphExtractor {
     program: ts.Program,
     sourceFile: ts.SourceFile,
     inferFile: ts.SourceFile,
-    options?: { strict?: boolean }
+    options?: { strict?: boolean },
   ) {
     this.program = program;
     this.sourceFile = sourceFile;
@@ -65,7 +65,7 @@ export class SubgraphExtractor {
 
   private find = (
     root: ts.Node,
-    predicate: (node: ts.Node) => boolean
+    predicate: (node: ts.Node) => boolean,
   ): ts.Node | undefined => {
     let result: ts.Node | undefined = undefined;
 
@@ -84,7 +84,7 @@ export class SubgraphExtractor {
 
   protected findSubgraphs = (
     node: ts.Node,
-    namespace: string[] = []
+    namespace: string[] = [],
   ): {
     node: string;
     namespace: string[];
@@ -96,7 +96,7 @@ export class SubgraphExtractor {
         namespace: string[];
         subgraph: { name: string; node: ts.Node };
       }[],
-      node: ts.Node
+      node: ts.Node,
     ) => {
       if (ts.isCallExpression(node)) {
         const firstChild = node.getChildAt(0);
@@ -128,7 +128,7 @@ export class SubgraphExtractor {
               variables = this.reduceChildren(
                 callArg,
                 this.findSubgraphIdentifiers,
-                []
+                [],
               );
             } else if (ts.isIdentifier(callArg)) {
               variables = this.findSubgraphIdentifiers([], callArg);
@@ -166,13 +166,13 @@ export class SubgraphExtractor {
       type InternalFlowNode = ts.Node & { flowNode?: { node: ts.Node } };
       const candidate = this.find(
         node,
-        (node: any) => node && "flowNode" in node && node.flowNode
+        (node: any) => node && "flowNode" in node && node.flowNode,
       ) as InternalFlowNode | undefined;
 
       if (
         candidate?.flowNode &&
         this.isGraphOrPregelType(
-          this.checker.getTypeAtLocation(candidate.flowNode.node)
+          this.checker.getTypeAtLocation(candidate.flowNode.node),
         )
       ) {
         subgraphs = this.findSubgraphs(candidate.flowNode.node, namespace);
@@ -184,7 +184,7 @@ export class SubgraphExtractor {
       return [
         ...subgraphs,
         ...subgraphs.map(({ subgraph, node }) =>
-          this.findSubgraphs(subgraph.node, [...namespace, node])
+          this.findSubgraphs(subgraph.node, [...namespace, node]),
         ),
       ].flat();
     }
@@ -199,7 +199,7 @@ export class SubgraphExtractor {
     const targetExport = exports.find((item) => item.name === name);
     if (!targetExport) throw new Error(`Failed to find export "${name}"`);
     const varDecls = (targetExport.declarations ?? []).filter(
-      ts.isVariableDeclaration
+      ts.isVariableDeclaration,
     );
 
     return varDecls.flatMap((varDecl) => {
@@ -209,7 +209,7 @@ export class SubgraphExtractor {
   };
 
   public getAugmentedSourceFile = (
-    name: string
+    name: string,
   ): {
     files: [filePath: string, contents: string][];
     exports: { typeName: string; valueName: string; graphName: string }[];
@@ -238,7 +238,7 @@ export class SubgraphExtractor {
       this.getText(this.sourceFile),
       ...typeExports.map(
         ({ typeName, valueName }) =>
-          `export type ${typeName} = typeof ${valueName}`
+          `export type ${typeName} = typeof ${valueName}`,
       ),
     ].join("\n\n");
 
@@ -246,7 +246,7 @@ export class SubgraphExtractor {
     const inferContents = [
       ...typeExports.map(
         ({ typeName }) =>
-          `import type { ${typeName}} from "./__langgraph__source.mts"`
+          `import type { ${typeName}} from "./__langgraph__source.mts"`,
       ),
       this.inferFile.getText(this.inferFile),
 
@@ -277,7 +277,7 @@ export class SubgraphExtractor {
 
   protected findSubgraphIdentifiers = (
     acc: { node: ts.Node; name: string }[],
-    node: ts.Node
+    node: ts.Node,
   ) => {
     if (ts.isIdentifier(node)) {
       const smb = this.checker.getSymbolAtLocation(node);
@@ -322,7 +322,7 @@ export class SubgraphExtractor {
   protected reduceChildren<Acc>(
     node: ts.Node,
     fn: (acc: Acc, node: ts.Node) => Acc,
-    initial: Acc
+    initial: Acc,
   ): Acc {
     let acc = initial;
     function it(node: ts.Node) {
@@ -343,7 +343,7 @@ export class SubgraphExtractor {
           files?: [fileName: string, contents: string][];
         },
     name: string,
-    options?: { strict?: boolean }
+    options?: { strict?: boolean },
   ) {
     const dirname =
       typeof target === "string" ? path.dirname(target) : __dirname;
@@ -365,7 +365,7 @@ export class SubgraphExtractor {
 
     const inferTemplatePath = path.resolve(
       __dirname,
-      "./schema/types.template.mts"
+      "./schema/types.template.mts",
     );
 
     if (typeof target !== "string") {
@@ -417,7 +417,7 @@ export class SubgraphExtractor {
       research,
       research.getSourceFile(targetPath)!,
       research.getSourceFile(inferTemplatePath)!,
-      options
+      options,
     );
 
     const { files, exports } = extractor.getAugmentedSourceFile(name);
@@ -438,7 +438,7 @@ export class SubgraphExtractor {
       } catch (e) {
         console.warn(
           `Failed to obtain symbol "${symbol}":`,
-          (e as Error)?.message
+          (e as Error)?.message,
         );
       }
       return undefined;
@@ -453,7 +453,7 @@ export class SubgraphExtractor {
           state: trySymbol(schemaGenerator, `${typeName}__update`),
           config: trySymbol(schemaGenerator, `${typeName}__config`),
         },
-      ])
+      ]),
     );
   }
 }

libs/langgraph-api/src/graph/parser/parser.worker.mjs

@@ -6,7 +6,7 @@ parentPort?.on("message", async (payload) => {
   const result = SubgraphExtractor.extractSchemas(
     payload.sourceFile,
     payload.exportSymbol,
-    { strict: false }
+    { strict: false },
   );
   parentPort?.postMessage(result);
 });

libs/langgraph-api/src/graph/parser/schema/types.mts

@@ -240,7 +240,7 @@ function resolveRequiredFile(
   symbol: ts.Symbol,
   key: string,
   fileName: string,
-  objectName: string
+  objectName: string,
 ): any {
   const sourceFile = getSourceFile(symbol);
   const requiredFilePath = /^[.\/]+/.test(fileName)
@@ -404,7 +404,7 @@ function getCanonicalDeclaration(sym: ts.Symbol): ts.Declaration {
 
   const declarationCount = sym.declarations?.length ?? 0;
   throw new Error(
-    `Symbol "${sym.name}" has no valueDeclaration and ${declarationCount} declarations.`
+    `Symbol "${sym.name}" has no valueDeclaration and ${declarationCount} declarations.`,
   );
 }
 
@@ -418,7 +418,7 @@ function getSourceFile(sym: ts.Symbol): ts.SourceFile {
   while (currentDecl.kind !== ts.SyntaxKind.SourceFile) {
     if (currentDecl.parent === undefined) {
       throw new Error(
-        `Unable to locate source file for declaration "${sym.name}".`
+        `Unable to locate source file for declaration "${sym.name}".`,
       );
     }
     currentDecl = currentDecl.parent;
@@ -561,7 +561,7 @@ class JsonSchemaGenerator {
     userSymbols: { [name: string]: ts.Symbol },
     inheritingTypes: { [baseName: string]: string[] },
     tc: ts.TypeChecker,
-    private args = getDefaultArgs()
+    private args = getDefaultArgs(),
   ) {
     this.symbols = symbols;
     this.allSymbols = allSymbols;
@@ -570,7 +570,7 @@ class JsonSchemaGenerator {
     this.tc = tc;
     this.userValidationKeywords = args.validationKeywords.reduce(
       (acc, word) => ({ ...acc, [word]: true }),
-      {}
+      {},
     );
     this.constAsEnum = args.constAsEnum;
   }
@@ -606,7 +606,7 @@ class JsonSchemaGenerator {
   private parseCommentsIntoDefinition(
     symbol: ts.Symbol,
     definition: Definition,
-    otherAnnotations: Record<string, true>
+    otherAnnotations: Record<string, true>,
   ): void {
     if (!symbol) {
       return;
@@ -621,7 +621,7 @@ class JsonSchemaGenerator {
           .map((comment) => {
             const newlineNormalizedComment = comment.text.replace(
               /\r\n/g,
-              "\n"
+              "\n",
             );
 
             // If a comment contains a "{@link XYZ}" inline tag that could not be
@@ -657,7 +657,7 @@ class JsonSchemaGenerator {
         }
       } else if (name === "TJS" && text.startsWith("-")) {
         let match: string[] | RegExpExecArray | null = new RegExp(
-          REGEX_TJS_JSDOC
+          REGEX_TJS_JSDOC,
         ).exec(originalText);
         if (match) {
           name = match[1];
@@ -673,7 +673,7 @@ class JsonSchemaGenerator {
       // to process the "." and beyond from the value
       if (subDefinitions[name]) {
         const match: string[] | RegExpExecArray | null = new RegExp(
-          REGEX_GROUP_JSDOC
+          REGEX_GROUP_JSDOC,
         ).exec(text);
         if (match) {
           const k = match[1];
@@ -716,7 +716,7 @@ class JsonSchemaGenerator {
     reffedType: ts.Symbol,
     definition: Definition,
     defaultNumberType = this.args.defaultNumberType,
-    ignoreUndefined = false
+    ignoreUndefined = false,
   ): Definition {
     const tupleType = resolveTupleType(propertyType);
 
@@ -725,7 +725,7 @@ class JsonSchemaGenerator {
       const elemTypes: ts.NodeArray<ts.TypeNode> = (propertyType as any)
         .typeArguments;
       const fixedTypes = elemTypes.map((elType) =>
-        this.getTypeDefinition(elType as any)
+        this.getTypeDefinition(elType as any),
       );
       definition.type = "array";
       if (fixedTypes.length > 0) {
@@ -743,12 +743,12 @@ class JsonSchemaGenerator {
       const propertyTypeString = this.tc.typeToString(
         propertyType,
         undefined,
-        ts.TypeFormatFlags.UseFullyQualifiedType
+        ts.TypeFormatFlags.UseFullyQualifiedType,
       );
       const flags = propertyType.flags;
       const arrayType = this.tc.getIndexTypeOfType(
         propertyType,
-        ts.IndexKind.Number
+        ts.IndexKind.Number,
       );
 
       if (flags & ts.TypeFlags.String) {
@@ -826,7 +826,7 @@ class JsonSchemaGenerator {
             };
             if (
               !!Array.from((propertyType as any).members as any[])?.find(
-                (member: [string]) => member[0] !== "__index"
+                (member: [string]) => member[0] !== "__index",
               )
             ) {
               this.getClassDefinition(propertyType, definition);
@@ -879,7 +879,7 @@ class JsonSchemaGenerator {
         } else {
           // Report that type could not be processed
           const error = new TypeError(
-            "Unsupported type: " + propertyTypeString
+            "Unsupported type: " + propertyTypeString,
           );
           (error as any).type = propertyType;
           throw error;
@@ -908,7 +908,7 @@ class JsonSchemaGenerator {
 
   private getDefinitionForProperty(
     prop: ts.Symbol,
-    node: ts.Node
+    node: ts.Node,
   ): Definition | null {
     if (prop.flags & ts.SymbolFlags.Method) {
       return null;
@@ -923,7 +923,7 @@ class JsonSchemaGenerator {
       undefined,
       undefined,
       prop,
-      reffedType
+      reffedType,
     );
 
     if (this.args.titles) {
@@ -967,12 +967,12 @@ class JsonSchemaGenerator {
             definition.default = val;
           } else if (val) {
             console.warn(
-              "unknown initializer for property " + propertyName + ": " + val
+              "unknown initializer for property " + propertyName + ": " + val,
             );
           }
         } catch (e) {
           console.warn(
-            "exception evaluating initializer for property " + propertyName
+            "exception evaluating initializer for property " + propertyName,
           );
         }
       }
@@ -983,13 +983,13 @@ class JsonSchemaGenerator {
 
   private getEnumDefinition(
     clazzType: ts.Type,
-    definition: Definition
+    definition: Definition,
   ): Definition {
     const node = clazzType.getSymbol()!.getDeclarations()![0];
     const fullName = this.tc.typeToString(
       clazzType,
       undefined,
-      ts.TypeFormatFlags.UseFullyQualifiedType
+      ts.TypeFormatFlags.UseFullyQualifiedType,
     );
     const members: ts.NodeArray<ts.EnumMember> =
       node.kind === ts.SyntaxKind.EnumDeclaration
@@ -1034,7 +1034,7 @@ class JsonSchemaGenerator {
                 "initializer is expression for enum: " +
                   fullName +
                   "." +
-                  caseLabel
+                  caseLabel,
               );
             }
           } else if (
@@ -1068,7 +1068,7 @@ class JsonSchemaGenerator {
   private getUnionDefinition(
     unionType: ts.UnionType,
     unionModifier: keyof Definition,
-    definition: Definition
+    definition: Definition,
   ): Definition {
     const enumValues: PrimitiveType[] = [];
     const simpleTypes: JSONSchema7TypeName[] = [];
@@ -1100,7 +1100,7 @@ class JsonSchemaGenerator {
           symbol,
           undefined,
           undefined,
-          true
+          true,
         );
         if (def.type === ("undefined" as any)) {
           continue;
@@ -1184,7 +1184,7 @@ class JsonSchemaGenerator {
 
   private getIntersectionDefinition(
     intersectionType: ts.IntersectionType,
-    definition: Definition
+    definition: Definition,
   ): Definition {
     const simpleTypes: JSONSchema7TypeName[] = [];
     const schemas: Definition[] = [];
@@ -1230,7 +1230,7 @@ class JsonSchemaGenerator {
 
   private getClassDefinition(
     clazzType: ts.Type,
-    definition: Definition
+    definition: Definition,
   ): Definition {
     const node = clazzType.getSymbol()!.getDeclarations()![0];
 
@@ -1277,7 +1277,7 @@ class JsonSchemaGenerator {
     const fullName = this.tc.typeToString(
       clazzType,
       undefined,
-      ts.TypeFormatFlags.UseFullyQualifiedType
+      ts.TypeFormatFlags.UseFullyQualifiedType,
     );
 
     const modifierFlags = ts.getCombinedModifierFlags(node);
@@ -1297,7 +1297,7 @@ class JsonSchemaGenerator {
           clazz.members == null
             ? []
             : clazz.members.filter(
-                (x) => x.kind === ts.SyntaxKind.IndexSignature
+                (x) => x.kind === ts.SyntaxKind.IndexSignature,
               );
         if (indexSignatures.length === 1) {
           // for case "array-types"
@@ -1305,21 +1305,21 @@ class JsonSchemaGenerator {
             indexSignatures[0] as ts.IndexSignatureDeclaration;
           if (indexSignature.parameters.length !== 1) {
             throw new Error(
-              "Not supported: IndexSignatureDeclaration parameters.length != 1"
+              "Not supported: IndexSignatureDeclaration parameters.length != 1",
             );
           }
           const indexSymbol: ts.Symbol = (indexSignature.parameters[0] as any)
             .symbol;
           const indexType = this.tc.getTypeOfSymbolAtLocation(
             indexSymbol,
-            node
+            node,
           );
           const isIndexedObject =
             indexType.flags === ts.TypeFlags.String ||
             indexType.flags === ts.TypeFlags.Number;
           if (indexType.flags !== ts.TypeFlags.Number && !isIndexedObject) {
             throw new Error(
-              "Not supported: IndexSignatureDeclaration with index symbol other than a number or a string"
+              "Not supported: IndexSignatureDeclaration with index symbol other than a number or a string",
             );
           }
 
@@ -1327,7 +1327,7 @@ class JsonSchemaGenerator {
           let def: Definition | undefined;
           if (typ.flags & ts.TypeFlags.IndexedAccess) {
             const targetName = ts.escapeLeadingUnderscores(
-              (clazzType as any).mapper?.target?.value
+              (clazzType as any).mapper?.target?.value,
             );
             const indexedAccessType = typ as ts.IndexedAccessType;
             const symbols: Map<ts.__String, ts.Symbol> = (
@@ -1339,7 +1339,7 @@ class JsonSchemaGenerator {
               const targetNode = targetSymbol.getDeclarations()![0];
               const targetDef = this.getDefinitionForProperty(
                 targetSymbol,
-                targetNode
+                targetNode,
               );
               if (targetDef) {
                 def = targetDef;
@@ -1372,7 +1372,7 @@ class JsonSchemaGenerator {
           }
           return all;
         },
-        {}
+        {},
       );
 
       if (definition.type === undefined) {
@@ -1403,7 +1403,7 @@ class JsonSchemaGenerator {
             order.push(prop.getName());
             return order;
           },
-          []
+          [],
         );
 
         definition.propertyOrder = propertyOrder;
@@ -1427,7 +1427,7 @@ class JsonSchemaGenerator {
             }
             return required;
           },
-          []
+          [],
         );
 
         if (requiredProps.length > 0) {
@@ -1454,9 +1454,9 @@ class JsonSchemaGenerator {
           typ,
           undefined,
           ts.TypeFormatFlags.NoTruncation |
-            ts.TypeFormatFlags.UseFullyQualifiedType
+            ts.TypeFormatFlags.UseFullyQualifiedType,
         )
-        .replace(REGEX_FILE_NAME_OR_SPACE, "")
+        .replace(REGEX_FILE_NAME_OR_SPACE, ""),
     );
   }
 
@@ -1489,7 +1489,7 @@ class JsonSchemaGenerator {
     reffedType?: ts.Symbol,
     pairedSymbol?: ts.Symbol,
     forceNotRef: boolean = false,
-    ignoreUndefined = false
+    ignoreUndefined = false,
   ): Definition {
     const definition: Definition = {}; // real definition
 
@@ -1574,7 +1574,7 @@ class JsonSchemaGenerator {
         .getFullyQualifiedName(
           reffedType!.getFlags() & ts.SymbolFlags.Alias
             ? this.tc.getAliasedSymbol(reffedType!)
-            : reffedType!
+            : reffedType!,
         )
         .replace(REGEX_FILE_NAME_OR_SPACE, "");
       if (this.args.uniqueNames && reffedType) {
@@ -1582,7 +1582,7 @@ class JsonSchemaGenerator {
         const relativePath = path.relative(process.cwd(), sourceFile.fileName);
         fullTypeName = `${typeName}.${generateHashOfNode(
           getCanonicalDeclaration(reffedType!),
-          relativePath
+          relativePath,
         )}`;
       } else {
         fullTypeName = this.makeTypeNameUnique(typ, typeName);
@@ -1595,7 +1595,7 @@ class JsonSchemaGenerator {
         const relativePath = path.relative(process.cwd(), sourceFile.fileName);
         fullTypeName = `${this.getTypeName(typ)}.${generateHashOfNode(
           getCanonicalDeclaration(sym),
-          relativePath
+          relativePath,
         )}`;
       } else if (
         reffedType &&
@@ -1631,20 +1631,20 @@ class JsonSchemaGenerator {
     this.parseCommentsIntoDefinition(
       typ.aliasSymbol!,
       definition,
-      otherAnnotations
+      otherAnnotations,
     );
     if (prop) {
       this.parseCommentsIntoDefinition(
         prop,
         returnedDefinition,
-        otherAnnotations
+        otherAnnotations,
       );
     }
     if (pairedSymbol && symbol && this.isFromDefaultLib(symbol)) {
       this.parseCommentsIntoDefinition(
         pairedSymbol,
         definition,
-        otherAnnotations
+        otherAnnotations,
       );
     }
 
@@ -1669,7 +1669,7 @@ class JsonSchemaGenerator {
             true,
             undefined,
             symbol,
-            symbol
+            symbol,
           );
         } else {
           reffedDefinition = definition;
@@ -1693,7 +1693,7 @@ class JsonSchemaGenerator {
           this.getUnionDefinition(
             typ as ts.UnionType,
             unionModifier,
-            definition
+            definition,
           );
         } else if (typ.flags & ts.TypeFlags.Intersection) {
           if (this.args.noExtraProps) {
@@ -1711,7 +1711,7 @@ class JsonSchemaGenerator {
                 undefined,
                 undefined,
                 undefined,
-                true
+                true,
               );
               definition.type = other.type; // should always be object
               definition.properties = {
@@ -1722,19 +1722,19 @@ class JsonSchemaGenerator {
               if (Object.keys(other.default || {}).length > 0) {
                 definition.default = extend(
                   definition.default || {},
-                  other.default
+                  other.default,
                 );
               }
               if (other.required) {
                 definition.required = unique(
-                  (definition.required || []).concat(other.required)
+                  (definition.required || []).concat(other.required),
                 ).sort();
               }
             }
           } else {
             this.getIntersectionDefinition(
               typ as ts.IntersectionType,
-              definition
+              definition,
             );
           }
         } else if (isRawType) {
@@ -1746,7 +1746,7 @@ class JsonSchemaGenerator {
             reffedType!,
             definition,
             undefined,
-            ignoreUndefined
+            ignoreUndefined,
           );
         } else if (
           node &&
@@ -1806,7 +1806,7 @@ class JsonSchemaGenerator {
   public getSchemaForSymbol(
     symbolName: string,
     includeReffedDefinitions: boolean = true,
-    includeAllOverrides: boolean = false
+    includeAllOverrides: boolean = false,
   ): Definition {
     const overrideDefinition = this.schemaOverrides.get(symbolName);
     if (!this.allSymbols[symbolName] && !overrideDefinition) {
@@ -1827,7 +1827,7 @@ class JsonSchemaGenerator {
             undefined,
             undefined,
             undefined,
-            this.userSymbols[symbolName] || undefined
+            this.userSymbols[symbolName] || undefined,
           );
     }
 
@@ -1849,7 +1849,7 @@ class JsonSchemaGenerator {
   public getSchemaForSymbols(
     symbolNames: string[],
     includeReffedDefinitions: boolean = true,
-    includeAllOverrides: boolean = false
+    includeAllOverrides: boolean = false,
   ): Definition {
     const root: {
       $id?: string;
@@ -1875,7 +1875,7 @@ class JsonSchemaGenerator {
         undefined,
         undefined,
         undefined,
-        this.userSymbols[symbolName]
+        this.userSymbols[symbolName],
       );
     }
     if (
@@ -1902,7 +1902,7 @@ class JsonSchemaGenerator {
 
   public getMainFileSymbols(
     program: ts.Program,
-    onlyIncludeFiles?: string[]
+    onlyIncludeFiles?: string[],
   ): string[] {
     function includeFile(file: ts.SourceFile): boolean {
       if (onlyIncludeFiles === undefined) {
@@ -1940,7 +1940,7 @@ function generateHashOfNode(node: ts.Node, relativePath: string): string {
 
 export function buildGenerator(
   program: ts.Program,
-  args: PartialArgs = {}
+  args: PartialArgs = {},
 ): JsonSchemaGenerator | null {
   // Use defaults unless otherwise specified
   const settings = getDefaultArgs();
@@ -1990,7 +1990,7 @@ export function buildGenerator(
           var baseName = tc.typeToString(
             baseType,
             undefined,
-            ts.TypeFormatFlags.UseFullyQualifiedType
+            ts.TypeFormatFlags.UseFullyQualifiedType,
           );
           if (!inheritingTypes[baseName]) {
             inheritingTypes[baseName] = [];
@@ -2011,14 +2011,14 @@ export function buildGenerator(
     userSymbols,
     inheritingTypes,
     typeChecker,
-    settings
+    settings,
   );
 }
 
 export async function extractGraphSchema(
   id: string,
   userPath: string,
-  exportName: string
+  exportName: string,
 ) {
   const filePath = path.resolve(process.cwd(), userPath);
   const parentPath = path.dirname(filePath);
@@ -2104,7 +2104,7 @@ export async function extractGraphSchema(
         export type __input = Inspect<FilterAny<__builder["input"]>>;
         export type __output = Inspect<FilterAny<__builder["output"]>>;
         export type __config = Inspect<FilterAny<__builder["config"]>>;
-      `
+      `,
     );
     const program = ts.createProgram([typePath], {
       noEmit: true,
@@ -2120,7 +2120,7 @@ export async function extractGraphSchema(
       } catch (e) {
         console.error(
           `Failed to obtain symbol "${symbol}":`,
-          (e as Error)?.message
+          (e as Error)?.message,
         );
       }
       return undefined;

libs/langgraph-api/src/logging.mts

@@ -50,7 +50,7 @@ export const logger = createLogger({
 
             return JSON.stringify({ timestamp, level, event, ...rest });
           }),
-        ])
+        ]),
   ),
   transports: [new transports.Console()],
 });
@@ -61,7 +61,7 @@ const formatStack = (stack: string | undefined | null) => {
   const [firstFile] = stacktraceParser(stack).filter(
     (item) =>
       !item.file?.split(path.sep).includes("node_modules") &&
-      !item.file?.startsWith("node:")
+      !item.file?.startsWith("node:"),
   );
 
   if (firstFile?.file && firstFile?.lineNumber) {
@@ -74,7 +74,7 @@ const formatStack = (stack: string | undefined | null) => {
       const spliceIndex = messageLines.findIndex((i) => i.includes(filePath));
 
       const padding = " ".repeat(
-        Math.max(0, messageLines[spliceIndex].indexOf("at"))
+        Math.max(0, messageLines[spliceIndex].indexOf("at")),
       );
 
       const highlightCode = process.stdout.isTTY;
@@ -82,7 +82,7 @@ const formatStack = (stack: string | undefined | null) => {
       let codeFrame = codeFrameColumns(
         readFileSync(filePath, "utf-8"),
         { start: { line, column } },
-        { highlightCode }
+        { highlightCode },
       );
 
       codeFrame = codeFrame
@@ -113,7 +113,7 @@ export const logError = (
   options?: {
     context?: Record<string, unknown>;
     prefix?: string;
-  }
+  },
 ) => {
   let message;
   let context = options?.context;

libs/langgraph-api/src/schemas.mts

@@ -171,7 +171,7 @@ export const RunCreate = z
               z.union([
                 z.string(),
                 z.object({ node: z.string(), input: z.unknown().optional() }),
-              ])
+              ]),
             ),
           ])
           .optional(),
@@ -210,7 +210,7 @@ export const RunCreate = z
             "updates",
             "events",
             "debug",
-          ])
+          ]),
         ),
         z.enum([
           "values",

libs/langgraph-api/src/server.mts

@@ -52,7 +52,7 @@ app.post(
       assistants: z.boolean().optional(),
       checkpointer: z.boolean().optional(),
       store: z.boolean().optional(),
-    })
+    }),
   ),
   (c) => {
     const { runs, threads, assistants, checkpointer, store } =
@@ -60,7 +60,7 @@ app.post(
 
     truncate({ runs, threads, assistants, checkpointer, store });
     return c.json({ ok: true });
-  }
+  },
 );
 
 export const StartServerSchema = z.object({
@@ -96,8 +96,8 @@ export async function startServer(options: z.infer<typeof StartServerSchema>) {
         { fetch: app.fetch, port: options.port, hostname: options.host },
         (c) => {
           resolve({ host: `${c.address}:${c.port}`, cleanup });
-        }
+        },
       );
-    }
+    },
   );
 }

libs/langgraph-api/src/state.mts

@@ -7,13 +7,13 @@ import { runnableConfigToCheckpoint } from "./utils/runnableConfig.mjs";
 import { serializeError } from "./utils/serde.mjs";
 
 const isStateSnapshot = (
-  state: StateSnapshot | LangGraphRunnableConfig
+  state: StateSnapshot | LangGraphRunnableConfig,
 ): state is StateSnapshot => {
   return "values" in state && "next" in state;
 };
 
 export const stateSnapshotToThreadState = (
-  state: StateSnapshot
+  state: StateSnapshot,
 ): ThreadState => {
   return {
     values: state.values,

libs/langgraph-api/src/storage/checkpoint.mts

@@ -77,18 +77,18 @@ class InMemorySaver extends MemorySaver {
   async put(
     config: RunnableConfig,
     checkpoint: Checkpoint,
-    metadata: CheckpointMetadata
+    metadata: CheckpointMetadata,
   ): Promise<RunnableConfig> {
     return await conn.with(() =>
       super.put(config, checkpoint, {
         ...Object.fromEntries(
           Object.entries(config.configurable ?? {}).filter(
-            ([key]) => !key.startsWith("__") && !EXCLUDED_KEYS.includes(key)
-          )
+            ([key]) => !key.startsWith("__") && !EXCLUDED_KEYS.includes(key),
+          ),
         ),
         ...config.metadata,
         ...metadata,
-      })
+      }),
     );
   }
 

libs/langgraph-api/src/storage/ops.mts

@@ -135,7 +135,7 @@ export const conn = new FileSystemPersistence<Store>(
     assistants: {},
     assistant_versions: [],
     retry_counter: {},
-  })
+  }),
 );
 
 class TimeoutError extends Error {}
@@ -255,8 +255,8 @@ export const truncate = (flags: {
         Object.entries(STORE.assistants).filter(
           ([key, assistant]) =>
             assistant.metadata?.created_by === "system" &&
-            uuid5(assistant.graph_id, NAMESPACE_GRAPH) === key
-        )
+            uuid5(assistant.graph_id, NAMESPACE_GRAPH) === key,
+        ),
       );
     }
 
@@ -271,7 +271,7 @@ const isObject = (value: unknown): value is Record<string, unknown> => {
 
 const isJsonbContained = (
   superset: Record<string, unknown> | undefined,
-  subset: Record<string, unknown> | undefined
+  subset: Record<string, unknown> | undefined,
 ): boolean => {
   if (superset == null || subset == null) return true;
   for (const [key, value] of Object.entries(subset)) {
@@ -321,7 +321,7 @@ export class Assistants {
 
       for (const assistant of filtered.slice(
         options.offset,
-        options.offset + options.limit
+        options.offset + options.limit,
       )) {
         yield { ...assistant, name: assistant.name ?? assistant.graph_id };
       }
@@ -345,7 +345,7 @@ export class Assistants {
       metadata?: Metadata;
       if_exists: OnConflictBehavior;
       name?: string;
-    }
+    },
   ): Promise<Assistant> {
     return conn.with((STORE) => {
       if (STORE.assistants[assistantId] != null) {
@@ -389,7 +389,7 @@ export class Assistants {
       graph_id?: string;
       metadata?: Metadata;
       name?: string;
-    }
+    },
   ): Promise<Assistant> {
     return conn.with((STORE) => {
       const assistant = STORE.assistants[assistantId];
@@ -428,7 +428,7 @@ export class Assistants {
         Math.max(
           ...STORE.assistant_versions
             .filter((v) => v["assistant_id"] === assistantId)
-            .map((v) => v["version"])
+            .map((v) => v["version"]),
         ) + 1;
 
       assistant.version = newVersion;
@@ -458,7 +458,7 @@ export class Assistants {
 
       // Cascade delete for assistant versions and crons
       STORE.assistant_versions = STORE.assistant_versions.filter(
-        (v) => v["assistant_id"] !== assistantId
+        (v) => v["assistant_id"] !== assistantId,
       );
 
       for (const run of Object.values(STORE.runs)) {
@@ -473,7 +473,7 @@ export class Assistants {
 
   static async setLatest(
     assistantId: string,
-    version: number
+    version: number,
   ): Promise<Assistant> {
     return conn.with((STORE) => {
       const assistant = STORE.assistants[assistantId];
@@ -481,7 +481,7 @@ export class Assistants {
         throw new HTTPException(404, { message: "Assistant not found" });
 
       const assistantVersion = STORE.assistant_versions.find(
-        (v) => v["assistant_id"] === assistantId && v["version"] === version
+        (v) => v["assistant_id"] === assistantId && v["version"] === version,
       );
 
       if (!assistantVersion)
@@ -509,7 +509,7 @@ export class Assistants {
       limit: number;
       offset: number;
       metadata?: Metadata;
-    }
+    },
   ) {
     return conn.with((STORE) => {
       const versions = STORE.assistant_versions
@@ -620,7 +620,7 @@ export class Threads {
 
       for (const thread of filtered.slice(
         options.offset,
-        options.offset + options.limit
+        options.offset + options.limit,
       )) {
         yield thread;
       }
@@ -644,7 +644,7 @@ export class Threads {
     options?: {
       metadata?: Metadata;
       if_exists: OnConflictBehavior;
-    }
+    },
   ): Promise<Thread> {
     return conn.with((STORE) => {
       const now = new Date();
@@ -674,7 +674,7 @@ export class Threads {
     threadId: string,
     options?: {
       metadata?: Metadata;
-    }
+    },
   ): Promise<Thread> {
     return conn.with((STORE) => {
       const thread = STORE.threads[threadId];
@@ -699,7 +699,7 @@ export class Threads {
     options: {
       checkpoint?: CheckpointPayload;
       exception?: Error;
-    }
+    },
   ) {
     return conn.with((STORE) => {
       const thread = STORE.threads[threadId];
@@ -712,7 +712,7 @@ export class Threads {
       }
 
       const hasPendingRuns = Object.values(STORE.runs).some(
-        (run) => run["thread_id"] === threadId && run["status"] === "pending"
+        (run) => run["thread_id"] === threadId && run["status"] === "pending",
       );
 
       let status: ThreadStatus = "idle";
@@ -737,7 +737,7 @@ export class Threads {
                 if (task.interrupts) acc[task.id] = task.interrupts;
                 return acc;
               },
-              {}
+              {},
             )
           : undefined;
     });
@@ -790,7 +790,7 @@ export class Threads {
       config: RunnableConfig,
       options: {
         subgraphs?: boolean;
-      }
+      },
     ): Promise<LangGraphStateSnapshot> {
       const subgraphs = options.subgraphs ?? false;
       const threadId = config.configurable?.thread_id;
@@ -831,7 +831,7 @@ export class Threads {
         | Record<string, unknown>
         | null
         | undefined,
-      asNode?: string | undefined
+      asNode?: string | undefined,
     ) {
       const threadId = config.configurable?.thread_id;
       const thread = threadId ? await Threads.get(threadId) : undefined;
@@ -880,7 +880,7 @@ export class Threads {
         limit?: number;
         before?: string | RunnableConfig;
         metadata?: Metadata;
-      }
+      },
     ) {
       const threadId = config.configurable?.thread_id;
       if (!threadId) return [];
@@ -932,7 +932,7 @@ export class Runs {
 
         if (!thread) {
           await console.warn(
-            `Unexpected missing thread in Runs.next: ${threadId}`
+            `Unexpected missing thread in Runs.next: ${threadId}`,
           );
           continue;
         }
@@ -965,7 +965,7 @@ export class Runs {
       multitaskStrategy?: MultitaskStrategy;
       ifNotExists?: IfNotExists;
       afterSeconds?: number;
-    }
+    },
   ): Promise<Run[]> {
     return conn.with(async (STORE) => {
       const assistant = STORE.assistants[assistantId];
@@ -985,7 +985,7 @@ export class Runs {
       const config: RunnableConfig = kwargs.config ?? {};
 
       const existingThread = Object.values(STORE.threads).find(
-        (thread) => thread.thread_id === threadId
+        (thread) => thread.thread_id === threadId,
       );
 
       const now = new Date();
@@ -1000,7 +1000,7 @@ export class Runs {
             configurable: Object.assign(
               {},
               assistant.config?.configurable,
-              config?.configurable
+              config?.configurable,
             ),
           }),
           created_at: now,
@@ -1025,9 +1025,9 @@ export class Runs {
                 {},
                 assistant.config?.configurable,
                 existingThread?.config?.configurable,
-                config?.configurable
+                config?.configurable,
               ),
-            }
+            },
           );
 
           existingThread.updated_at = now;
@@ -1039,7 +1039,7 @@ export class Runs {
       // if multitask_mode = reject, check for inflight runs
       // and if there are any, return them to reject putting a new run
       const inflightRuns = Object.values(STORE.runs).filter(
-        (run) => run.thread_id === threadId && run.status === "pending"
+        (run) => run.thread_id === threadId && run.status === "pending",
       );
 
       if (options?.preventInsertInInflight) {
@@ -1062,14 +1062,14 @@ export class Runs {
             existingThread?.config?.configurable?.user_id ??
             assistant.config?.configurable?.user_id ??
             options?.userId,
-        }
+        },
       );
 
       const mergedMetadata = Object.assign(
         {},
         assistant.metadata,
         existingThread?.metadata,
-        metadata
+        metadata,
       );
 
       const newRun: Run = {
@@ -1084,7 +1084,7 @@ export class Runs {
             assistant.config,
             config,
             { configurable },
-            { metadata: mergedMetadata }
+            { metadata: mergedMetadata },
           ),
         }),
         multitask_strategy: multitaskStrategy,
@@ -1099,7 +1099,7 @@ export class Runs {
 
   static async get(
     runId: string,
-    threadId: string | undefined
+    threadId: string | undefined,
   ): Promise<Run | null> {
     return conn.with(async (STORE) => {
       const run = STORE.runs[runId];
@@ -1115,7 +1115,7 @@ export class Runs {
 
   static async delete(
     runId: string,
-    threadId: string | undefined
+    threadId: string | undefined,
   ): Promise<string | null> {
     return conn.with(async (STORE) => {
       const run = STORE.runs[runId];
@@ -1167,7 +1167,7 @@ export class Runs {
     runIds: string[],
     options: {
       action?: "interrupt" | "rollback";
-    }
+    },
   ) {
     return conn.with(async (STORE) => {
       const action = options.action ?? "interrupt";
@@ -1194,7 +1194,7 @@ export class Runs {
               {
                 run_id: runId,
                 thread_id: threadId,
-              }
+              },
             );
 
             promises.push(Runs.delete(runId, threadId));
@@ -1228,7 +1228,7 @@ export class Runs {
       offset?: number | null;
       status?: string | null;
       metadata?: Metadata | null;
-    }
+    },
   ) {
     return conn.with(async (STORE) => {
       const runs = Object.values(STORE.runs).filter((run) => {
@@ -1263,7 +1263,7 @@ export class Runs {
       options?: {
         ignore404?: boolean;
         cancelOnDisconnect?: AbortSignal;
-      }
+      },
     ): AsyncGenerator<{ event: string; data: unknown }> {
       // TODO: what if we're joining an already completed run? Should we check before?
       const signal = options?.cancelOnDisconnect;
@@ -1276,7 +1276,7 @@ export class Runs {
             if (message.data === "done") break;
           } else {
             const streamTopic = message.topic.substring(
-              `run:${runId}:stream:`.length
+              `run:${runId}:stream:`.length,
             );
 
             yield { event: streamTopic, data: message.data };

libs/langgraph-api/src/storage/persist.mts

@@ -11,7 +11,7 @@ superjson.registerCustom<Uint8Array, string>(
     serialize: (v) => Buffer.from(v).toString("base64"),
     deserialize: (v) => new Uint8Array(Buffer.from(v, "base64")),
   },
-  "Uint8Array"
+  "Uint8Array",
 );
 
 export function serialize(data: unknown) {
@@ -81,7 +81,7 @@ export class FileSystemPersistence<Schema> {
   }
 
   async *withGenerator<T extends AsyncGenerator<any>>(
-    fn: ((data: Schema) => T) | T
+    fn: ((data: Schema) => T) | T,
   ) {
     if (this.filepath == null || this.data == null) {
       throw new Error(`${this.name} not initialized`);

libs/langgraph-api/src/storage/store.mts

@@ -30,7 +30,7 @@ class InMemoryStore extends BaseMemoryStore {
   }
 
   async batch<Op extends readonly Operation[]>(
-    operations: Op
+    operations: Op,
   ): Promise<OperationResults<Op>> {
     return await conn.with(() => super.batch(operations));
   }

libs/langgraph-api/src/stream.mts

@@ -112,7 +112,7 @@ function preprocessDebugCheckpointTask(task: DebugTask): StreamTaskResult {
 }
 
 const isConfigurablePresent = (
-  config: unknown
+  config: unknown,
 ): config is {
   [key: string]: unknown;
   callbacks?: unknown;
@@ -130,8 +130,8 @@ const deleteInternalConfigurableFields = (config: unknown) => {
       ...config,
       configurable: Object.fromEntries(
         Object.entries(config.configurable).filter(
-          ([key]) => !key.startsWith("__")
-        )
+          ([key]) => !key.startsWith("__"),
+        ),
       ),
     };
 
@@ -168,7 +168,7 @@ export async function* streamState(
     onCheckpoint?: (checkpoint: StreamCheckpoint) => void;
     onTaskResult?: (taskResult: StreamTaskResult) => void;
     signal?: AbortSignal;
-  }
+  },
 ): AsyncGenerator<{ event: string; data: unknown }> {
   const kwargs = run.kwargs;
   const graphId = kwargs.config?.configurable?.graph_id;
@@ -185,8 +185,8 @@ export async function* streamState(
 
   const libStreamMode: Set<LangGraphStreamMode> = new Set(
     userStreamMode.filter(
-      (mode) => mode !== "events" && mode !== "messages-tuple"
-    ) ?? []
+      (mode) => mode !== "events" && mode !== "messages-tuple",
+    ) ?? [],
   );
 
   if (userStreamMode.includes("messages-tuple")) {
@@ -232,7 +232,7 @@ export async function* streamState(
       runId: run.run_id,
       streamMode: [...libStreamMode],
       signal: options?.signal,
-    }
+    },
   );
 
   const messages: Record<string, BaseMessageChunk> = {};
@@ -344,11 +344,11 @@ export async function* streamState(
         kwargs.feedback_keys.map(async (feedback) => {
           const { url } = await client.createPresignedFeedbackToken(
             run.run_id,
-            feedback
+            feedback,
           );
           return [feedback, url];
-        })
-      )
+        }),
+      ),
     );
 
     yield { event: "feedback", data };

libs/langgraph-api/src/utils/abort.mts

@@ -7,7 +7,7 @@ export const combineAbortSignals = (
 
   const abortController = new AbortController();
   signals.forEach((signal) =>
-    signal.addEventListener("abort", () => abortController.abort())
+    signal.addEventListener("abort", () => abortController.abort()),
   );
   return abortController.signal;
 };

libs/langgraph-api/src/utils/runnableConfig.mts

@@ -11,7 +11,7 @@ const ConfigSchema = z.object({
 });
 
 export const runnableConfigToCheckpoint = (
-  config: RunnableConfig | null | undefined
+  config: RunnableConfig | null | undefined,
 ): Checkpoint | null => {
   if (!config || !config.configurable || !config.configurable.thread_id) {
     return null;
@@ -38,7 +38,7 @@ const TaskConfigSchema = z.object({
 });
 
 export const taskRunnableConfigToCheckpoint = (
-  config: RunnableConfig | null | undefined
+  config: RunnableConfig | null | undefined,
 ): Partial<Checkpoint> | null => {
   if (!config || !config.configurable || !config.configurable.thread_id) {
     return null;

libs/langgraph-api/src/utils/serde.mts

@@ -16,7 +16,7 @@ export const serialiseAsDict = (obj: unknown) => {
 
       return value;
     },
-    2
+    2,
   );
 };
 
@@ -26,5 +26,3 @@ export const serializeError = (error: unknown) => {
   }
   return { error: "Error", message: JSON.stringify(error) };
 };
-
-

libs/langgraph-api/tests/api.test.mts

@@ -41,7 +41,7 @@ const truncate = async (
         store?: boolean;
         checkpoint?: boolean;
       }
-    | "all"
+    | "all",
 ) => {
   const flags =
     options === "all"
@@ -81,7 +81,7 @@ describe("assistants", () => {
 
     await client.assistants.delete(res.assistant_id);
     await expect(() => client.assistants.get(res.assistant_id)).rejects.toThrow(
-      "HTTP 404: Assistant not found"
+      "HTTP 404: Assistant not found",
     );
   });
 
@@ -159,7 +159,7 @@ describe("assistants", () => {
 
     await client.assistants.delete(res.assistant_id);
     await expect(() => client.assistants.get(res.assistant_id)).rejects.toThrow(
-      "HTTP 404: Assistant not found"
+      "HTTP 404: Assistant not found",
     );
   });
 
@@ -184,7 +184,7 @@ describe("assistants", () => {
     });
     expect(search.length).toBeGreaterThanOrEqual(1);
     expect(search.every((i) => i.assistant_id !== create.assistant_id)).toBe(
-      true
+      true,
     );
   });
 
@@ -193,7 +193,7 @@ describe("assistants", () => {
 
     // (1) initial version
     expect(
-      await client.assistants.getVersions(assistant.assistant_id)
+      await client.assistants.getVersions(assistant.assistant_id),
     ).toMatchObject([{ version: 1 }]);
 
     // (2) update and create a new version
@@ -201,7 +201,7 @@ describe("assistants", () => {
       config: { configurable: { foo: "bar" } },
     });
     expect(
-      await client.assistants.getVersions(assistant.assistant_id)
+      await client.assistants.getVersions(assistant.assistant_id),
     ).toMatchObject([
       { version: 2, config: { configurable: { foo: "bar" } } },
       { version: 1 },
@@ -211,14 +211,14 @@ describe("assistants", () => {
     expect(
       await client.assistants.getVersions(assistant.assistant_id, {
         limit: 1,
-      })
+      }),
     ).toMatchObject([{ version: 2 }]);
 
     // descending order
     expect(
       await client.assistants.getVersions(assistant.assistant_id, {
         offset: 1,
-      })
+      }),
     ).toMatchObject([{ version: 1 }]);
 
     // (3) create a version with metadata
@@ -229,14 +229,14 @@ describe("assistants", () => {
     expect(
       await client.assistants.getVersions(assistant.assistant_id, {
         metadata: { foo: "baz" },
-      })
+      }),
     ).toMatchObject([{ version: 3 }]);
 
     // (4) noop update
     await client.assistants.update(assistant.assistant_id, {});
 
     expect(
-      await client.assistants.getVersions(assistant.assistant_id)
+      await client.assistants.getVersions(assistant.assistant_id),
     ).toMatchObject([
       { version: 4 },
       { version: 3 },
@@ -246,7 +246,7 @@ describe("assistants", () => {
 
     await client.assistants.delete(assistant.assistant_id);
     expect(
-      await client.assistants.getVersions(assistant.assistant_id)
+      await client.assistants.getVersions(assistant.assistant_id),
     ).toMatchObject([]);
   });
 
@@ -260,12 +260,12 @@ describe("assistants", () => {
 
     const updatedAgain = await client.assistants.update(
       created.assistant_id,
-      {}
+      {},
     );
 
     expect(updatedAgain.version).toBe(3);
     await expect(
-      client.assistants.setLatest(created.assistant_id, 4)
+      client.assistants.setLatest(created.assistant_id, 4),
     ).rejects.toThrow();
   });
 
@@ -388,7 +388,7 @@ describe("threads copy", () => {
 
     const copiedThread = await client.threads.copy(thread.thread_id);
     const copiedThreadState = await client.threads.getState(
-      copiedThread.thread_id
+      copiedThread.thread_id,
     );
 
     // check copied thread state matches expected output
@@ -414,7 +414,7 @@ describe("threads copy", () => {
       // For in-memory connections, check the thread history
       const originalHistory = await client.threads.getHistory(thread.thread_id);
       const copiedHistory = await client.threads.getHistory(
-        copiedThread.thread_id
+        copiedThread.thread_id,
       );
 
       expect(originalHistory.length).toBe(copiedHistory.length);
@@ -443,7 +443,7 @@ describe("threads copy", () => {
     } else {
       const sql = postgres(
         process.env.POSTGRES_URI ??
-          "postgres://postgres:postgres@127.0.0.1:5433/postgres?sslmode=disable"
+          "postgres://postgres:postgres@127.0.0.1:5433/postgres?sslmode=disable",
       );
 
       // check checkpoints in DB
@@ -504,11 +504,11 @@ describe("threads copy", () => {
 
     // test that copied thread has original as well as new values
     const copiedThreadState = await client.threads.getState<AgentState>(
-      copiedThread.thread_id
+      copiedThread.thread_id,
     );
 
     const copiedThreadStateMessages = copiedThreadState.values.messages.map(
-      (m) => m.content
+      (m) => m.content,
     );
     expect(copiedThreadStateMessages).toEqual([
       // original messages
@@ -525,7 +525,7 @@ describe("threads copy", () => {
 
     // test that the new run on the copied thread doesn't affect the original one
     const currentOriginalThreadState = await client.threads.getState(
-      thread.thread_id
+      thread.thread_id,
     );
     expect(currentOriginalThreadState).toEqual(originalThreadState);
   });
@@ -544,7 +544,7 @@ describe("threads copy", () => {
     });
 
     const history = await client.threads.getHistory<AgentState>(
-      thread.thread_id
+      thread.thread_id,
     );
     expect(history.length).toBe(5);
     expect(history[0].values.messages.length).toBe(4);
@@ -560,11 +560,11 @@ describe("threads copy", () => {
     });
 
     const fullHistory = await client.threads.getHistory<AgentState>(
-      thread.thread_id
+      thread.thread_id,
     );
     const filteredHistory = await client.threads.getHistory<AgentState>(
       thread.thread_id,
-      { metadata: runMetadata }
+      { metadata: runMetadata },
     );
 
     expect(fullHistory.length).toBe(10);
@@ -595,13 +595,13 @@ describe("threads copy", () => {
     });
 
     const copiedThreadState = await client.threads.getState<AgentState>(
-      copyThread.thread_id
+      copyThread.thread_id,
     );
     expect(copiedThreadState.values.messages[0].content).toBe("bar");
 
     // test that updating the copied thread doesn't affect the original one
     const currentOriginalThreadState = await client.threads.getState(
-      thread.thread_id
+      thread.thread_id,
     );
     expect(currentOriginalThreadState).toEqual(originalState);
   });
@@ -625,7 +625,7 @@ describe("runs", () => {
         input: { messages: [{ type: "human", content: "bar" }] },
         config: globalConfig,
         afterSeconds: 10,
-      }
+      },
     );
 
     let runs = await client.runs.list(thread.thread_id);
@@ -649,7 +649,7 @@ describe("runs", () => {
     const stream = client.runs.stream(
       thread.thread_id,
       assistant.assistant_id,
-      { input, streamMode: "values", config: globalConfig }
+      { input, streamMode: "values", config: globalConfig },
     );
 
     let runId: string | null = null;
@@ -666,7 +666,7 @@ describe("runs", () => {
 
       if (chunk.event === "values") {
         const messageIds = chunk.data.messages.map(
-          (message: { id: string }) => message.id
+          (message: { id: string }) => message.id,
         );
         expect(messageIds.slice(0, -1)).toEqual(previousMessageIds);
         previousMessageIds = messageIds;
@@ -686,7 +686,7 @@ describe("runs", () => {
     } else {
       const sql = postgres(
         process.env.POSTGRES_URI ??
-          "postgres://postgres:postgres@127.0.0.1:5433/postgres?sslmode=disable"
+          "postgres://postgres:postgres@127.0.0.1:5433/postgres?sslmode=disable",
       );
 
       let cur = await sql`SELECT * FROM checkpoints WHERE run_id is null`;
@@ -709,7 +709,7 @@ describe("runs", () => {
       client.runs.wait(thread.thread_id, assistant.assistant_id, {
         input,
         config: { ...globalConfig, recursion_limit: 1 },
-      })
+      }),
     ).rejects.toThrowError(/GraphRecursionError/);
     const threadUpdated = await client.threads.get(thread.thread_id);
     expect(threadUpdated.status).toBe("error");
@@ -724,7 +724,7 @@ describe("runs", () => {
     const values = await client.runs.wait(
       thread.thread_id,
       assistant.assistant_id,
-      { input, config: globalConfig }
+      { input, config: globalConfig },
     );
 
     expect(Array.isArray((values as any).messages)).toBe(true);
@@ -741,7 +741,7 @@ describe("runs", () => {
     const stream = client.runs.stream(
       thread.thread_id,
       assistant.assistant_id,
-      { input, streamMode: "updates", config: globalConfig }
+      { input, streamMode: "updates", config: globalConfig },
     );
 
     let runId: string | null = null;
@@ -781,18 +781,18 @@ describe("runs", () => {
     const stream = client.runs.stream(
       thread.thread_id,
       assistant.assistant_id,
-      { input, streamMode: "events", config: globalConfig }
+      { input, streamMode: "events", config: globalConfig },
     );
 
     const events = await gatherIterator(stream);
     expect(new Set(events.map((i) => i.event))).toEqual(
-      new Set(["metadata", "events"])
+      new Set(["metadata", "events"]),
     );
 
     expect(
       new Set(
-        events.filter((i) => i.event === "events").map((i) => i.data.event)
-      )
+        events.filter((i) => i.event === "events").map((i) => i.data.event),
+      ),
     ).toEqual(
       new Set([
         "on_chain_start",
@@ -800,7 +800,7 @@ describe("runs", () => {
         "on_chat_model_end",
         "on_chat_model_start",
         "on_chat_model_stream",
-      ])
+      ]),
     );
   });
 
@@ -813,7 +813,7 @@ describe("runs", () => {
     const stream = client.runs.stream(
       thread.thread_id,
       assistant.assistant_id,
-      { input, streamMode: "messages", config: globalConfig }
+      { input, streamMode: "messages", config: globalConfig },
     );
 
     let runId: string | null = null;
@@ -854,7 +854,7 @@ describe("runs", () => {
         "messages/metadata",
         "messages/partial",
         "messages/complete",
-      ])
+      ]),
     );
 
     expect(runId).not.toBeNull();
@@ -871,7 +871,7 @@ describe("runs", () => {
     const stream = await client.runs.stream(
       thread.thread_id,
       assistant.assistant_id,
-      { input, streamMode: "messages-tuple", config: globalConfig }
+      { input, streamMode: "messages-tuple", config: globalConfig },
     );
 
     const chunks = await gatherIterator(stream);
@@ -905,7 +905,7 @@ describe("runs", () => {
     const stream = await client.runs.stream(
       thread.thread_id,
       assistant.assistant_id,
-      { input, streamMode: ["messages", "values"], config: globalConfig }
+      { input, streamMode: ["messages", "values"], config: globalConfig },
     );
 
     const chunks = await gatherIterator(stream);
@@ -914,7 +914,7 @@ describe("runs", () => {
 
     const messages: BaseMessage[] = findLast(
       chunks,
-      (i) => i.event === "values"
+      (i) => i.event === "values",
     )?.data.messages;
 
     expect(messages.length).toBe(4);
@@ -931,7 +931,7 @@ describe("runs", () => {
         "messages/partial",
         "messages/complete",
         "values",
-      ])
+      ]),
     );
 
     const run = await client.runs.get(thread.thread_id, runId);
@@ -956,7 +956,7 @@ describe("runs", () => {
           input,
           interruptBefore: ["tool"],
           config: globalConfig,
-        })
+        }),
       );
 
       expect(chunks.filter((i) => i.event === "error").length).toBe(0);
@@ -976,7 +976,7 @@ describe("runs", () => {
         client.runs.stream(thread.thread_id, assistant.assistant_id, {
           input: null,
           config: globalConfig,
-        })
+        }),
       );
 
       expect(chunks.filter((i) => i.event === "error").length).toBe(0);
@@ -988,7 +988,7 @@ describe("runs", () => {
 
       const threadAfterContinue = await client.threads.get(thread.thread_id);
       expect(threadAfterContinue.status).toBe("idle");
-    }
+    },
   );
 
   it.concurrent("human in the loop - modification", async () => {
@@ -1006,7 +1006,7 @@ describe("runs", () => {
         input,
         interruptBefore: ["tool"],
         config: globalConfig,
-      })
+      }),
     );
 
     expect(chunks.filter((i) => i.event === "error").length).toBe(0);
@@ -1014,7 +1014,7 @@ describe("runs", () => {
     // edit the last message
     const lastMessage = findLast(
       chunks,
-      (i) => i.event === "values"
+      (i) => i.event === "values",
     )?.data.messages.at(-1);
     lastMessage.content = "modified";
 
@@ -1031,7 +1031,7 @@ describe("runs", () => {
     expect(modifiedThread.metadata?.modified).toBe(true);
 
     const stateAfterModify = await client.threads.getState<AgentState>(
-      thread.thread_id
+      thread.thread_id,
     );
     expect(stateAfterModify.values.messages.at(-1)?.content).toBe("modified");
     expect(stateAfterModify.next).toEqual(["tool"]);
@@ -1044,7 +1044,7 @@ describe("runs", () => {
       client.runs.stream(thread.thread_id, assistant.assistant_id, {
         input: null,
         config: globalConfig,
-      })
+      }),
     );
 
     const threadAfterContinue = await client.threads.get(thread.thread_id);
@@ -1059,7 +1059,7 @@ describe("runs", () => {
 
     // get the history
     const history = await client.threads.getHistory<AgentState>(
-      thread.thread_id
+      thread.thread_id,
     );
     expect(history.length).toBe(6);
     expect(history[0].next.length).toBe(0);
@@ -1091,13 +1091,13 @@ describe("runs", () => {
     };
 
     await expect(
-      client.runs.wait(thread.thread_id, "non-existent", { input })
+      client.runs.wait(thread.thread_id, "non-existent", { input }),
     ).rejects.toThrow(/No assistant found for/);
 
     await expect(
       gatherIterator(
-        client.runs.stream(thread.thread_id, "non-existent", { input })
-      )
+        client.runs.stream(thread.thread_id, "non-existent", { input }),
+      ),
     ).rejects.toThrow(/No assistant found for/);
   });
 });
@@ -1120,7 +1120,7 @@ describe("shared state", () => {
     const res1 = (await client.runs.wait(
       thread.thread_id,
       assistant.assistant_id,
-      { input, config }
+      { input, config },
     )) as Awaited<Record<string, any>>;
     expect(res1.sharedStateValue).toBe(null);
 
@@ -1128,7 +1128,7 @@ describe("shared state", () => {
     const res2 = (await client.runs.wait(
       thread.thread_id,
       assistant.assistant_id,
-      { input, config }
+      { input, config },
     )) as Awaited<Record<string, any>>;
     expect(res2.sharedStateValue).toBe(config.configurable.user_id);
   });
@@ -1146,7 +1146,7 @@ describe("shared state", () => {
     const res1 = (await client.runs.wait(
       thread.thread_id,
       assistant.assistant_id,
-      { input, config: config1 }
+      { input, config: config1 },
     )) as Awaited<Record<string, any>>;
 
     // Run with the same thread id but a new config
@@ -1154,7 +1154,7 @@ describe("shared state", () => {
     const res2 = (await client.runs.wait(
       thread.thread_id,
       assistant.assistant_id,
-      { input, config: config2 }
+      { input, config: config2 },
     )) as Awaited<Record<string, any>>;
 
     expect(res1.sharedStateValue).toBe(config1.configurable.user_id);
@@ -1180,12 +1180,12 @@ describe("shared state", () => {
     const res1 = (await client.runs.wait(
       thread.thread_id,
       assistant.assistant_id,
-      { input, config }
+      { input, config },
     )) as Awaited<Record<string, any>>;
     expect(res1.sharedStateFromStoreConfig).toBeDefined();
     expect(res1.sharedStateFromStoreConfig.id).toBeDefined();
     expect(res1.sharedStateFromStoreConfig.id).toBe(
-      config.configurable.user_id
+      config.configurable.user_id,
     );
   });
 
@@ -1210,12 +1210,12 @@ describe("shared state", () => {
     const res1 = (await client.runs.wait(
       thread.thread_id,
       assistant.assistant_id,
-      { input, config }
+      { input, config },
     )) as Awaited<Record<string, any>>;
     expect(res1.sharedStateFromStoreConfig).toBeDefined();
     expect(res1.sharedStateFromStoreConfig.id).toBeDefined();
     expect(res1.sharedStateFromStoreConfig.id).toBe(
-      config.configurable.user_id
+      config.configurable.user_id,
     );
 
     // Fetch data from store client
@@ -1305,10 +1305,10 @@ describe("StoreClient", () => {
     expect(searchResAfterPut.items[0].createdAt).toBeDefined();
     expect(searchResAfterPut.items[0].updatedAt).toBeDefined();
     expect(
-      new Date(searchResAfterPut.items[0].createdAt).getTime()
+      new Date(searchResAfterPut.items[0].createdAt).getTime(),
     ).toBeLessThanOrEqual(Date.now());
     expect(
-      new Date(searchResAfterPut.items[0].updatedAt).getTime()
+      new Date(searchResAfterPut.items[0].updatedAt).getTime(),
     ).toBeLessThanOrEqual(Date.now());
 
     const updatedValue = { foo: "baz" };
@@ -1325,7 +1325,7 @@ describe("StoreClient", () => {
     expect(searchResAfterUpdate.items[0].value).toEqual(updatedValue);
 
     expect(
-      new Date(searchResAfterUpdate.items[0].updatedAt).getTime()
+      new Date(searchResAfterUpdate.items[0].updatedAt).getTime(),
     ).toBeGreaterThan(new Date(searchResAfterPut.items[0].updatedAt).getTime());
 
     const listResAfterPut = await client.store.listNamespaces();
@@ -1349,12 +1349,12 @@ describe("subgraphs", () => {
     const assistant = await client.assistants.create({ graphId: "nested" });
 
     expect(
-      Object.keys(await client.assistants.getSubgraphs(assistant.assistant_id))
+      Object.keys(await client.assistants.getSubgraphs(assistant.assistant_id)),
     ).toEqual(["gp_two"]);
 
     const subgraphs = await client.assistants.getSubgraphs(
       assistant.assistant_id,
-      { recurse: true }
+      { recurse: true },
     );
 
     expect(Object.keys(subgraphs)).toEqual(["gp_two", "gp_two|p_two"]);
@@ -1399,7 +1399,7 @@ describe("subgraphs", () => {
           messages: [{ role: "human", content: "SF", id: "initial-message" }],
         },
         interruptBefore: ["tool"],
-      })
+      }),
     );
 
     for (const chunk of chunks) {
@@ -1468,7 +1468,7 @@ describe("subgraphs", () => {
     const stateRecursive = await client.threads.getState(
       thread.thread_id,
       undefined,
-      { subgraphs: true }
+      { subgraphs: true },
     );
 
     expect(stateRecursive.next).toEqual(["weather_graph"]);
@@ -1527,7 +1527,7 @@ describe("subgraphs", () => {
         input: null,
         streamMode: ["values", "updates"],
         streamSubgraphs: true,
-      })
+      }),
     );
 
     expect(chunks.filter((i) => i.event === "error")).toEqual([]);
@@ -1681,7 +1681,7 @@ describe("subgraphs", () => {
 
     // run until the interrupt (same as before)
     let chunks = await gatherIterator(
-      client.runs.stream(thread.thread_id, assistant.assistant_id, { input })
+      client.runs.stream(thread.thread_id, assistant.assistant_id, { input }),
     );
     expect(chunks.filter((i) => i.event === "error")).toEqual([]);
 
@@ -1713,7 +1713,7 @@ describe("subgraphs", () => {
     // get inner state after update
     const innerState = await client.threads.getState<{ city: string }>(
       thread.thread_id,
-      state.tasks[0].checkpoint ?? undefined
+      state.tasks[0].checkpoint ?? undefined,
     );
 
     expect(innerState.values.city).toBe("LA");
@@ -1735,7 +1735,7 @@ describe("subgraphs", () => {
     chunks = await gatherIterator(
       client.runs.stream(thread.thread_id, assistant.assistant_id, {
         input: null,
-      })
+      }),
     );
 
     expect(chunks.filter((i) => i.event === "error")).toEqual([]);
@@ -1820,7 +1820,7 @@ describe("subgraphs", () => {
     const stream = await gatherIterator(
       client.runs.stream(thread.thread_id, assistant.assistant_id, {
         command: { resume: "i want to resume" },
-      })
+      }),
     );
 
     expect(stream.at(-1)?.event).toBe("values");
@@ -1837,7 +1837,7 @@ describe("errors", () => {
       client.runs.stream(thread.thread_id, assistant.assistant_id, {
         input: { messages: [] },
         streamMode: ["debug", "events"],
-      })
+      }),
     );
 
     expect(stream.at(-1)).toMatchObject({
@@ -1856,7 +1856,7 @@ describe("errors", () => {
     const run = await client.runs.create(
       thread.thread_id,
       assistant.assistant_id,
-      { input: { messages: [] } }
+      { input: { messages: [] } },
     );
 
     await client.runs.join(thread.thread_id, run.run_id);
@@ -1871,11 +1871,11 @@ describe("errors", () => {
     const run = await client.runs.create(
       thread.thread_id,
       assistant.assistant_id,
-      { input: { messages: [] } }
+      { input: { messages: [] } },
     );
 
     const stream = await gatherIterator(
-      client.runs.joinStream(thread.thread_id, run.run_id)
+      client.runs.joinStream(thread.thread_id, run.run_id),
     );
 
     expect(stream.at(-1)).toMatchObject({
@@ -1905,7 +1905,7 @@ describe("long running tasks", () => {
         {
           input: { messages: [], delay },
           config: globalConfig,
-        }
+        },
       );
 
       await client.runs.join(thread.thread_id, run.run_id);
@@ -1921,7 +1921,7 @@ describe("long running tasks", () => {
       expect(runResult.values.messages).toMatchObject([
         { content: `finished after ${delay}ms` },
       ]);
-    }
+    },
   );
 });
 
@@ -1947,7 +1947,7 @@ describe("command update state", () => {
       client.runs.stream(thread.thread_id, assistant.assistant_id, {
         command: { update: { keyOne: "value3", keyTwo: "value4" } },
         config: globalConfig,
-      })
+      }),
     );
     expect(stream.filter((chunk) => chunk.event === "error")).toEqual([]);
 
@@ -1982,7 +1982,7 @@ describe("command update state", () => {
           ],
         },
         config: globalConfig,
-      })
+      }),
     );
     expect(stream.filter((chunk) => chunk.event === "error")).toEqual([]);
 
@@ -2005,7 +2005,7 @@ it("stream debug checkpoint", async () => {
     {
       input,
       streamMode: "debug",
-    }
+    },
   );
 
   const stream = [];
@@ -2024,13 +2024,13 @@ it("stream debug checkpoint", async () => {
       step: i.metadata?.step,
       checkpoint: i.checkpoint,
       parent_checkpoint: i.parent_checkpoint,
-    }))
+    })),
   ).toEqual(
     history.map((i) => ({
       step: i.metadata?.step,
       checkpoint: i.checkpoint,
       parent_checkpoint: i.parent_checkpoint,
-    }))
+    })),
   );
 });
 
@@ -2047,7 +2047,7 @@ it("continue after interrupt must have checkpoint present", async () => {
       input,
       streamMode: "debug",
       interruptBefore: ["router_node"],
-    })
+    }),
   );
 
   const initialStream = stream
@@ -2062,7 +2062,7 @@ it("continue after interrupt must have checkpoint present", async () => {
     client.runs.stream(thread.thread_id, assistant.assistant_id, {
       streamMode: "debug",
       checkpoint,
-    })
+    }),
   );
 
   const continueHistory = (
@@ -2078,13 +2078,13 @@ it("continue after interrupt must have checkpoint present", async () => {
       step: i.metadata?.step,
       checkpoint: i.checkpoint,
       parent_checkpoint: i.parent_checkpoint,
-    }))
+    })),
   ).toEqual(
     continueHistory.map((i) => ({
       step: i.metadata?.step,
       checkpoint: i.checkpoint,
       parent_checkpoint: i.parent_checkpoint,
-    }))
+    })),
   );
 });
 
@@ -2093,7 +2093,7 @@ describe("multitasking", () => {
   const pollRun = async (
     threadId: string,
     runId: string,
-    maxIter: number = 600
+    maxIter: number = 600,
   ) => {
     let lastStatus:
       | Awaited<ReturnType<typeof client.runs.get>>["status"]
@@ -2128,7 +2128,7 @@ describe("multitasking", () => {
     const run = await client.runs.create(
       thread.thread_id,
       assistant.assistant_id,
-      { input, config: globalConfig }
+      { input, config: globalConfig },
     );
 
     // Attempt another run that should be rejected
@@ -2137,7 +2137,7 @@ describe("multitasking", () => {
         input,
         multitaskStrategy: "reject",
         config: globalConfig,
-      })
+      }),
     ).rejects.toThrow();
 
     const runStatus = await pollRun(thread.thread_id, run.run_id);
@@ -2156,7 +2156,7 @@ describe("multitasking", () => {
     const run1 = await client.runs.create(
       thread.thread_id,
       assistant.assistant_id,
-      { input: input1, config: globalConfig }
+      { input: input1, config: globalConfig },
     );
 
     // Start second run that should interrupt first
@@ -2171,7 +2171,7 @@ describe("multitasking", () => {
         input: input2,
         multitaskStrategy: "interrupt",
         config: globalConfig,
-      }
+      },
     );
 
     const run1Status = await pollRun(thread.thread_id, run1.run_id);
@@ -2204,7 +2204,7 @@ describe("multitasking", () => {
     const run1 = await client.runs.create(
       thread.thread_id,
       assistant.assistant_id,
-      { input: input1, config: globalConfig }
+      { input: input1, config: globalConfig },
     );
 
     // Start second run that should rollback first
@@ -2214,12 +2214,12 @@ describe("multitasking", () => {
     const run2 = await client.runs.create(
       thread.thread_id,
       assistant.assistant_id,
-      { input: input2, multitaskStrategy: "rollback", config: globalConfig }
+      { input: input2, multitaskStrategy: "rollback", config: globalConfig },
     );
 
     // First run should be deleted
     await expect(() =>
-      pollRun(thread.thread_id, run1.run_id)
+      pollRun(thread.thread_id, run1.run_id),
     ).rejects.toThrow();
 
     const run2Status = await pollRun(thread.thread_id, run2.run_id);
@@ -2242,7 +2242,7 @@ describe("multitasking", () => {
     const run1 = await client.runs.create(
       thread.thread_id,
       assistant.assistant_id,
-      { input: input1, config: globalConfig }
+      { input: input1, config: globalConfig },
     );
 
     // Start second run that should be enqueued
@@ -2257,7 +2257,7 @@ describe("multitasking", () => {
         input: input2,
         multitaskStrategy: "enqueue",
         config: globalConfig,
-      }
+      },
     );
 
     const run1Status = await pollRun(thread.thread_id, run1.run_id);
@@ -2283,7 +2283,7 @@ describe("RemoteGraph", () => {
     });
     const stream = await graph.stream(
       { messages: [{ type: "human", content: "foo", id: "initial-message" }] },
-      { streamMode: "values", ...globalConfig }
+      { streamMode: "values", ...globalConfig },
     );
 
     const chunks = await gatherIterator(stream);

libs/langgraph-api/tests/graphs/agent.mts

@@ -37,7 +37,7 @@ class StableFakeListChatModel extends FakeListChatModel {
   async *_streamResponseChunks(
     _messages: BaseMessage[],
     options: this["ParsedCallOptions"],
-    runManager?: CallbackManagerForLLMRun
+    runManager?: CallbackManagerForLLMRun,
   ): AsyncGenerator<ChatGenerationChunk> {
     const response = this._currentResponse();
     this._incrementResponse();
@@ -68,7 +68,7 @@ class StableFakeListChatModel extends FakeListChatModel {
         undefined,
         undefined,
         undefined,
-        { chunk }
+        { chunk },
       );
     }
   }
@@ -88,7 +88,7 @@ const getModel = (threadId: string) => {
 
 const agentNode = async (
   state: typeof GraphAnnotationInput.State,
-  config: LangGraphRunnableConfig
+  config: LangGraphRunnableConfig,
 ) => {
   if (state.interrupt) interrupt("i want to interrupt");
 
@@ -120,7 +120,7 @@ const agentNode = async (
 
 const toolNode = async (
   state: typeof GraphAnnotationInput.State,
-  config: LangGraphRunnableConfig
+  config: LangGraphRunnableConfig,
 ) => {
   const store = config.store;
   let sharedStateFromStoreConfig: Record<string, any> | null = null;
@@ -144,7 +144,7 @@ const toolNode = async (
 
 const checkSharedStateNode = async (
   _: typeof GraphAnnotationInput.State,
-  config: LangGraphRunnableConfig
+  config: LangGraphRunnableConfig,
 ): Promise<Partial<typeof GraphAnnotationInput.State>> => {
   const store = config.store;
   const namespace = ["inputtedState", "data"];
@@ -174,7 +174,7 @@ const workflow = new StateGraph(
     input: GraphAnnotationInput,
     output: GraphAnnotationOutput,
   },
-  Annotation.Root({ model_name: Annotation<string> })
+  Annotation.Root({ model_name: Annotation<string> }),
 )
   .addNode("agent", agentNode)
   .addNode("tool", toolNode)

libs/langgraph-api/tests/graphs/delay.mts

@@ -12,7 +12,7 @@ const StateSchema = Annotation.Root({
 });
 
 const longRunning = async (
-  state: typeof StateSchema.State
+  state: typeof StateSchema.State,
 ): Promise<typeof StateSchema.Update> => {
   await new Promise((resolve) => setTimeout(resolve, state.delay));
   return { messages: [`finished after ${state.delay}ms`] };

libs/langgraph-api/tests/graphs/nested.mts

@@ -6,7 +6,7 @@ const child = new StateGraph(
       reducer: (a, b) => a.concat(b),
     }),
     child: Annotation<"child_one" | "child_two">,
-  })
+  }),
 )
   .addNode("c_one", () => ({ messages: ["Entered c_one node"] }))
   .addNode("c_two", () => ({ messages: ["Entered c_two node"] }))
@@ -20,7 +20,7 @@ const parent = new StateGraph(
       reducer: (a, b) => a.concat(b),
     }),
     parent: Annotation<"parent_one" | "parent_two">,
-  })
+  }),
 )
   .addNode("p_one", () => ({ messages: ["Entered p_one node"] }))
   .addNode("p_two", child.compile())
@@ -33,7 +33,7 @@ const grandParent = new StateGraph(
     messages: Annotation<string[]>({
       reducer: (a, b) => a.concat(b),
     }),
-  })
+  }),
 )
   .addNode("gp_one", () => ({ messages: ["Entered gp_one node"] }))
   .addNode("gp_two", parent.compile())

libs/langgraph-api/tests/graphs/package.json

@@ -4,4 +4,4 @@
     "@langchain/core": "^0.3.22",
     "@langchain/langgraph": "^0.2.31"
   }
-}
+}

libs/langgraph-api/tests/graphs/weather.mts

@@ -49,7 +49,7 @@ const router = new StateGraph(routerState)
       if (route === "weather") return "weather_graph";
       return "normal_llm_node";
     },
-    ["weather_graph", "normal_llm_node"]
+    ["weather_graph", "normal_llm_node"],
   )
   .addEdge("weather_graph", END)
   .addEdge("normal_llm_node", END);

libs/langgraph-api/tests/parser.test.mts

@@ -56,7 +56,7 @@ describe.concurrent("graph factories", () => {
   ])("%s", ([prop]) => {
     const schemas = SubgraphExtractor.extractSchemas(
       { contents: `${common}\n\nexport const graph = ${prop};` },
-      "graph"
+      "graph",
     );
 
     expect(schemas.graph.input).toMatchObject(MessagesSchema);
@@ -107,7 +107,7 @@ describe.concurrent("subgraphs", () => {
             .compile();
           `,
       },
-      "graph"
+      "graph",
     );
     expect(schemas["graph|child"].input).toMatchObject({
       type: "object",
@@ -226,7 +226,7 @@ describe.concurrent("subgraphs", () => {
             .compile();
         `,
       },
-      "parent"
+      "parent",
     );
 
     expect(Object.keys(schemas)).toEqual(
@@ -234,7 +234,7 @@ describe.concurrent("subgraphs", () => {
         "parent",
         "parent|parent_two",
         "parent|parent_two|child_two",
-      ])
+      ]),
     );
 
     expect(schemas.parent.state).toMatchObject({
@@ -352,10 +352,10 @@ describe.concurrent("subgraphs", () => {
         `,
         },
         "parent",
-        { strict: true }
+        { strict: true },
       );
     }).toThrowError(
-      `Multiple unique subgraph invocations found for "parent|parent_one"`
+      `Multiple unique subgraph invocations found for "parent|parent_one"`,
     );
   });
 
@@ -414,11 +414,11 @@ describe.concurrent("subgraphs", () => {
           ],
         ],
       },
-      "graph"
+      "graph",
     );
 
     expect(Object.keys(schemas)).toEqual(
-      expect.arrayContaining(["graph", "graph|child"])
+      expect.arrayContaining(["graph", "graph|child"]),
     );
 
     expect(schemas["graph|child"].input).toMatchObject({
@@ -547,11 +547,11 @@ describe.concurrent("subgraphs", () => {
           ],
         ],
       },
-      "graph"
+      "graph",
     );
 
     expect(Object.keys(schemas)).toEqual(
-      expect.arrayContaining(["graph", "graph|child"])
+      expect.arrayContaining(["graph", "graph|child"]),
     );
 
     expect(schemas["graph|child"].input).toMatchObject({
@@ -665,7 +665,7 @@ describe.concurrent("subgraphs", () => {
           export const graph = parent.compile() 
         `,
       },
-      "graph"
+      "graph",
     );
     expect(schemas["graph|child"].input).toMatchObject({
       type: "object",
@@ -803,11 +803,11 @@ test.concurrent("weather", () => {
         export const graph = router.compile();
       `,
     },
-    "graph"
+    "graph",
   );
 
   expect(Object.keys(schemas)).toEqual(
-    expect.arrayContaining(["graph", "graph|weather_graph"])
+    expect.arrayContaining(["graph", "graph|weather_graph"]),
   );
 });
 
@@ -861,10 +861,10 @@ test.concurrent("nested", () => {
         export const graph = grandParent.compile();
       `,
     },
-    "graph"
+    "graph",
   );
 
   expect(Object.keys(schemas)).toEqual(
-    expect.arrayContaining(["graph", "graph|gp_two", "graph|gp_two|p_two"])
+    expect.arrayContaining(["graph", "graph|gp_two", "graph|gp_two|p_two"]),
   );
 });

libs/langgraph-api/tests/utils.server.mts

@@ -5,7 +5,7 @@ import { readFile } from "node:fs/promises";
 import { dirname } from "node:path";
 
 const configPath = fileURLToPath(
-  new URL("./graphs/langgraph.json", import.meta.url)
+  new URL("./graphs/langgraph.json", import.meta.url),
 );
 const config = JSON.parse(await readFile(configPath, "utf-8"));
 
@@ -20,5 +20,5 @@ await spawnServer(
     env: config.env,
     hostUrl: "https://smith.langchain.com",
   },
-  { pid: process.pid, projectCwd: dirname(configPath) }
+  { pid: process.pid, projectCwd: dirname(configPath) },
 );

libs/langgraph-cli/.prettierrc

@@ -0,0 +1 @@
+{}

libs/langgraph-cli/README.md

@@ -51,18 +51,18 @@ The CLI uses a `langgraph.json` configuration file with these key settings:
 ```json5
 {
   // Required: Graph definitions
-  "graphs": {
-    "graph": "./src/graph.ts:graph" 
+  graphs: {
+    graph: "./src/graph.ts:graph",
   },
 
   // Optional: Node version (20 only at the moment)
-  "node_version": "20",
+  node_version: "20",
 
   // Optional: Environment variables
-  "env": ".env",
-  
+  env: ".env",
+
   // Optional: Additional Dockerfile commands
-  "dockerfile_lines": []
+  dockerfile_lines: [],
 }
 ```
 

libs/langgraph-cli/package.json

@@ -15,12 +15,15 @@
     "dist/"
   ],
   "scripts": {
+    "clean": "npx -y bun scripts/clean.mjs",
     "build": "npx -y bun scripts/build.mjs",
     "prepack": "pnpm run build",
     "typecheck": "tsc --noEmit",
     "cli": "tsx src/cli/cli.mts",
     "cli:watch": "tsx watch src/cli/cli.mts",
-    "test": "vitest"
+    "test": "vitest",
+    "format": "prettier --write .",
+    "format:check": "prettier --check ."
   },
   "dependencies": {
     "@commander-js/extra-typings": "^13.0.0",

libs/langgraph-cli/scripts/clean.mjs

@@ -0,0 +1,7 @@
+#!/usr/bin/env bun
+function $(strings, ...rest) {
+  console.log("$", ...strings.raw);
+  return Bun.$(strings, ...rest);
+}
+
+await $`rm -rf dist`;

libs/langgraph-cli/src/cli/build.mts

@@ -26,7 +26,7 @@ builder
   .option("-c, --config <path>", "Path to configuration file", process.cwd())
   .option(
     "--no-pull",
-    "Running the server with locally-built images. By default LangGraph will pull the latest images from the registry"
+    "Running the server with locally-built images. By default LangGraph will pull the latest images from the registry",
   )
   .argument("[args...]")
   .passThroughOptions()
@@ -35,7 +35,7 @@ builder
     withAnalytics((command) => ({
       config: command.opts().config !== process.cwd(),
       pull: command.opts().pull,
-    }))
+    })),
   )
   .action(async (pass, params) => {
     const configPath = await getProjectPath(params.config);
@@ -63,6 +63,6 @@ builder
 
     exec = $({ ...opts, input });
     await stream(
-      exec`docker build -f - -t ${params.tag} ${projectDir} ${pass}`
+      exec`docker build -f - -t ${params.tag} ${projectDir} ${pass}`,
     );
   });

libs/langgraph-cli/src/cli/dev.mts

@@ -17,7 +17,7 @@ import { withAnalytics } from "./utils/analytics.mjs";
 builder
   .command("dev")
   .description(
-    "Run LangGraph API server in development mode with hot reloading."
+    "Run LangGraph API server in development mode with hot reloading.",
   )
   .option("-p, --port <number>", "port to run the server on", "2024")
   .option("-h, --host <string>", "host to bind to", "localhost")
@@ -33,7 +33,7 @@ builder
       port: command.opts().port !== "2024",
       host: command.opts().host !== "localhost",
       n_jobs_per_worker: command.opts().nJobsPerWorker !== "10",
-    }))
+    })),
   )
   .action(async (options, { args }) => {
     try {
@@ -65,11 +65,11 @@ builder
 
       if (!gitignoreContent.includes(".langgraph_api")) {
         logger.info(
-          "Updating .gitignore to prevent `.langgraph_api` from being committed."
+          "Updating .gitignore to prevent `.langgraph_api` from being committed.",
         );
         await fs.appendFile(
           gitignorePath,
-          "\n# LangGraph API\n.langgraph_api\n"
+          "\n# LangGraph API\n.langgraph_api\n",
         );
       }
 
@@ -96,15 +96,15 @@ builder
 
         const oldWatch = Object.entries(watcher.getWatched()).flatMap(
           ([dir, files]) =>
-            files.map((file) => path.resolve(projectCwd, dir, file))
+            files.map((file) => path.resolve(projectCwd, dir, file)),
         );
 
         const addedTarget = newWatch.filter(
-          (target) => !oldWatch.includes(target)
+          (target) => !oldWatch.includes(target),
         );
 
         const removedTarget = oldWatch.filter(
-          (target) => !newWatch.includes(target)
+          (target) => !newWatch.includes(target),
         );
 
         watcher.unwatch(removedTarget).add(addedTarget);
@@ -130,21 +130,21 @@ builder
 
         if ("python_version" in config) {
           logger.warn(
-            "Launching Python server from @langchain/langgraph-cli is experimental. Please use the `langgraph-cli` package from PyPi instead."
+            "Launching Python server from @langchain/langgraph-cli is experimental. Please use the `langgraph-cli` package from PyPi instead.",
           );
 
           const { spawnPythonServer } = await import("./dev.python.mjs");
           child = await spawnPythonServer(
             { ...options, rest: args },
             { configPath, config, env, hostUrl },
-            { pid, projectCwd }
+            { pid, projectCwd },
           );
         } else {
           const { spawnServer } = await import("@langchain/langgraph-api");
           child = await spawnServer(
             options,
             { config, env, hostUrl },
-            { pid, projectCwd }
+            { pid, projectCwd },
           );
         }
       };

libs/langgraph-cli/src/cli/dev.python.mts

@@ -79,7 +79,7 @@ function getDownloadUrl(info: UvBinaryInfo): string {
 async function downloadAndExtract(
   url: string,
   destPath: string,
-  info: UvBinaryInfo
+  info: UvBinaryInfo,
 ): Promise<string> {
   const response = await fetch(url);
   if (!response.ok)
@@ -100,7 +100,7 @@ async function downloadAndExtract(
       await tarExtract({ file: tempFilePath, cwd: tempDirPath });
       sourceBinaryPath = path.resolve(
         sourceBinaryPath,
-        path.basename(tempFilePath).slice(0, ".tar.gz".length * -1)
+        path.basename(tempFilePath).slice(0, ".tar.gz".length * -1),
       );
     }
     sourceBinaryPath = path.resolve(sourceBinaryPath, info.binaryName);
@@ -151,7 +151,7 @@ export async function spawnPythonServer(
   options: {
     pid: number;
     projectCwd: string;
-  }
+  },
 ) {
   const deps = await assembleLocalDeps(context.configPath, context.config);
   const requirements = deps.rebuildFiles.filter((i) => i.endsWith(".txt"));
@@ -180,6 +180,6 @@ export async function spawnPythonServer(
       stdio: ["inherit", "inherit", "inherit"],
       env: context.env,
       cwd: options.projectCwd,
-    }
+    },
   );
 }

libs/langgraph-cli/src/cli/docker.mts

@@ -25,12 +25,12 @@ const fileExists = async (path: string) => {
 builder
   .command("dockerfile")
   .description(
-    "Generate a Dockerfile for the LangGraph API server, with Docker Compose options."
+    "Generate a Dockerfile for the LangGraph API server, with Docker Compose options.",
   )
   .argument("<save-path>", "Path to save the Dockerfile")
   .option(
     "--add-docker-compose",
-    "Add additional files for running the LangGraph API server with docker-compose. These files include a docker-compose.yml, .env file, and a .dockerignore file."
+    "Add additional files for running the LangGraph API server with docker-compose. These files include a docker-compose.yml, .env file, and a .dockerignore file.",
   )
   .option("-c, --config <path>", "Path to configuration file", process.cwd())
   .hook(
@@ -38,7 +38,7 @@ builder
     withAnalytics((command) => ({
       config: command.opts().config !== process.cwd(),
       add_docker_compose: !!command.opts().addDockerCompose,
-    }))
+    })),
   )
   .action(async (savePath, options) => {
     const configPath = await getProjectPath(options.config);
@@ -67,7 +67,7 @@ builder
 
       const composePath = path.resolve(
         path.dirname(targetPath),
-        "docker-compose.yml"
+        "docker-compose.yml",
       );
 
       await fs.writeFile(composePath, compose);
@@ -75,7 +75,7 @@ builder
 
       const dockerignorePath = path.resolve(
         path.dirname(targetPath),
-        ".dockerignore"
+        ".dockerignore",
       );
 
       if (!fileExists(dockerignorePath)) {
@@ -124,7 +124,7 @@ builder
             *.test.js
             *.spec.js
             tests
-          `
+          `,
         );
         logger.info(`✅ Created: ${path.basename(dockerignorePath)}`);
       }
@@ -139,7 +139,7 @@ builder
             # Or if you have a LangGraph Cloud license key, then uncomment the following line:
             # LANGGRAPH_CLOUD_LICENSE_KEY=your-license-key
             # Add any other environment variables go below...
-          `
+          `,
         );
         logger.info(`✅ Created: ${path.basename(envPath)}`);
       }

libs/langgraph-cli/src/cli/up.mts

@@ -30,7 +30,7 @@ const waitForHealthcheck = async (port: number) => {
   while (Date.now() - now < 10_000) {
     const ok = await fetch(`http://localhost:${port}/ok`).then(
       (res) => res.ok,
-      () => false
+      () => false,
     );
 
     await new Promise((resolve) => setTimeout(resolve, 100));
@@ -46,23 +46,23 @@ builder
   .option("-c, --config <path>", "Path to configuration file", process.cwd())
   .option(
     "-d, --docker-compose <path>",
-    "Advanced: Path to docker-compose.yml file with additional services to launch"
+    "Advanced: Path to docker-compose.yml file with additional services to launch",
   )
   .option("-p, --port <port>", "Port to run the server on", "8123")
   .option("--recreate", "Force recreate containers and volumes", false)
   .option(
     "--no-pull",
-    "Running the server with locally-built images. By default LangGraph will pull the latest images from the registry"
+    "Running the server with locally-built images. By default LangGraph will pull the latest images from the registry",
   )
   .option("--watch", "Restart on file changes", false)
   .option(
     "--wait",
     "Wait for services to start before returning. Implies --detach",
-    false
+    false,
   )
   .option(
     "--postgres-uri <uri>",
-    "Postgres URI to use for the database. Defaults to launching a local database"
+    "Postgres URI to use for the database. Defaults to launching a local database",
   )
   .hook(
     "preAction",
@@ -75,7 +75,7 @@ builder
       pull: command.opts().pull,
       watch: command.opts().watch,
       wait: command.opts().wait,
-    }))
+    })),
   )
   .action(async (params) => {
     logger.info("Starting LangGraph API server...");
@@ -83,7 +83,7 @@ builder
       dedent`
         For local dev, requires env var LANGSMITH_API_KEY with access to LangGraph Cloud closed beta.
         For production use, requires a license key in env var LANGGRAPH_CLOUD_LICENSE_KEY.
-      `
+      `,
     );
 
     const configPath = await getProjectPath(params.config);
@@ -118,13 +118,13 @@ builder
     // remove dangling images
     logger.info(`Pruning dangling images...`);
     await stream(
-      exec`docker image prune -f --filter ${`label=com.docker.compose.project=${name}`}`
+      exec`docker image prune -f --filter ${`label=com.docker.compose.project=${name}`}`,
     );
 
     // remove stale containers
     logger.info(`Pruning stale containers...`);
     await stream(
-      exec`docker container prune -f --filter ${`label=com.docker.compose.project=${name}`}`
+      exec`docker container prune -f --filter ${`label=com.docker.compose.project=${name}`}`,
     );
 
     const input = createCompose(capabilities, {
@@ -148,7 +148,7 @@ builder
         args.push("--watch");
       } else {
         logger.warn(
-          "Watch mode is not available. Please upgrade your Docker Engine."
+          "Watch mode is not available. Please upgrade your Docker Engine.",
         );
       }
     } else if (params.wait) {
@@ -178,7 +178,7 @@ builder
           - LangGraph Studio: https://smith.langchain.com/studio/?baseUrl=http://127.0.0.1:${params.port}
         `);
       },
-      () => void 0
+      () => void 0,
     );
 
     await up.catch(() => void 0);

libs/langgraph-cli/src/cli/utils/analytics.mts

@@ -34,7 +34,7 @@ async function logData(data: LogData): Promise<void> {
 let analyticsPromise = Promise.resolve();
 
 export function withAnalytics<TCommand extends Command<any, any, any>>(
-  fn?: (command: TCommand) => Record<string, boolean>
+  fn?: (command: TCommand) => Record<string, boolean>,
 ) {
   if (process.env.LANGGRAPH_CLI_NO_ANALYTICS === "1") {
     return () => void 0;
@@ -49,7 +49,7 @@ export function withAnalytics<TCommand extends Command<any, any, any>>(
         cli_version: version,
         cli_command: actionCommand.name(),
         params: fn?.(actionCommand) ?? {},
-      }).catch(() => {})
+      }).catch(() => {}),
     );
   };
 }

libs/langgraph-cli/src/cli/utils/ipc/server.mts

@@ -53,7 +53,7 @@ export const createIpcServer = async () => {
       bufferData((message: Buffer) => {
         const data = JSON.parse(message.toString());
         server.emit("data", data);
-      })
+      }),
     );
   });
 

libs/langgraph-cli/src/cli/utils/ipc/utils/temporary-directory.mts

@@ -1,17 +1,17 @@
 // MIT License
-// 
+//
 // Copyright (c) Hiroki Osame <hiroki.osame@gmail.com>
-// 
+//
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal
 // in the Software without restriction, including without limitation the rights
 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 // copies of the Software, and to permit persons to whom the Software is
 // furnished to do so, subject to the following conditions:
-// 
+//
 // The above copyright notice and this permission notice shall be included in all
 // copies or substantial portions of the Software.
-// 
+//
 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
@@ -19,7 +19,7 @@
 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 // SOFTWARE.
-// 
+//
 // https://github.com/privatenumber/tsx/tree/28a3e7d2b8fd72b683aab8a98dd1fcee4624e4cb
 import path from "node:path";
 import os from "node:os";

libs/langgraph-cli/src/cli/utils/version.mts

@@ -4,7 +4,7 @@ import * as url from "node:url";
 async function getVersion() {
   try {
     const packageJson = url.fileURLToPath(
-      new URL("../../../package.json", import.meta.url)
+      new URL("../../../package.json", import.meta.url),
     );
     const { version } = JSON.parse(await fs.readFile(packageJson, "utf-8"));
     return version + "+js";

libs/langgraph-cli/src/docker/compose.mts

@@ -59,7 +59,7 @@ function parseVersion(input: string): Version {
   const patchStr = parts[2] ?? "0";
 
   const major = Number.parseInt(
-    majorStr.startsWith("v") ? majorStr.slice(1) : majorStr
+    majorStr.startsWith("v") ? majorStr.slice(1) : majorStr,
   );
   const minor = Number.parseInt(minorStr);
   const patch = Number.parseInt(patchStr.split("-").at(0) ?? "0");
@@ -96,7 +96,7 @@ export async function getDockerCapabilities(): Promise<DockerCapabilities> {
           z.object({
             Name: z.string(),
             Version: z.string().optional(),
-          })
+          }),
         ),
       }),
     })
@@ -108,11 +108,11 @@ export async function getDockerCapabilities(): Promise<DockerCapabilities> {
 
   const composePlugin = info.data.ClientInfo.Plugins.find(
     (i): i is { Name: string; Version: string } =>
-      i.Name === "compose" && i.Version != null
+      i.Name === "compose" && i.Version != null,
   );
   const buildxPlugin = info.data.ClientInfo.Plugins.find(
     (i): i is { Name: string; Version: string } =>
-      i.Name === "buildx" && i.Version != null
+      i.Name === "buildx" && i.Version != null,
   );
 
   let composeRes: Pick<DockerCapabilities, "versionCompose" | "composeType">;
@@ -124,7 +124,7 @@ export async function getDockerCapabilities(): Promise<DockerCapabilities> {
   } else {
     try {
       const standalone = await $(
-        await getExecaOptions()
+        await getExecaOptions(),
       )`docker-compose --version --short`;
       composeRes = {
         composeType: "standalone",
@@ -159,7 +159,11 @@ function isPlainObject(value: unknown): value is Record<string, any> {
 
 export function createCompose(
   capabilities: DockerCapabilities,
-  options: { port?: number; postgresUri?: string; apiDef?: Record<string, any> }
+  options: {
+    port?: number;
+    postgresUri?: string;
+    apiDef?: Record<string, any>;
+  },
 ) {
   let includeDb = false;
   let postgresUri = options.postgresUri;

libs/langgraph-cli/src/docker/docker.mts

@@ -25,7 +25,7 @@ async function exists(path: string) {
 
 export async function assembleLocalDeps(
   configPath: string,
-  config: Config
+  config: Config,
 ): Promise<LocalDeps> {
   const reserved = new Set([
     "src",
@@ -46,7 +46,7 @@ export async function assembleLocalDeps(
   function checkReserved(name: string, ref: string) {
     if (reserved.has(name)) {
       throw new Error(
-        `Package name '${name}' used in local dep '${ref}' is reserved. Rename the directory.`
+        `Package name '${name}' used in local dep '${ref}' is reserved. Rename the directory.`,
       );
     }
     reserved.add(name);
@@ -71,7 +71,7 @@ export async function assembleLocalDeps(
       throw new Error(`Local dependency must be a directory: ${resolved}`);
     } else if (!resolved.startsWith(path.dirname(configPath))) {
       throw new Error(
-        `Local dependency must be a subdirectory of the config file: ${resolved}`
+        `Local dependency must be a subdirectory of the config file: ${resolved}`,
       );
     }
 
@@ -98,7 +98,7 @@ export async function assembleLocalDeps(
         // flat layout
         if (path.basename(resolved).includes("-")) {
           throw new Error(
-            `Package name '${path.basename(resolved)}' contains a hyphen. Rename the directory to use it as flat-layout package.`
+            `Package name '${path.basename(resolved)}' contains a hyphen. Rename the directory to use it as flat-layout package.`,
           );
         }
 
@@ -167,13 +167,13 @@ export async function assembleLocalDeps(
 async function updateGraphPaths(
   configPath: string,
   config: Config,
-  localDeps: LocalDeps
+  localDeps: LocalDeps,
 ) {
   for (const [graphId, importStr] of Object.entries(config.graphs)) {
     let [moduleStr, attrStr] = importStr.split(":", 2);
     if (!moduleStr || !attrStr) {
       throw new Error(
-        `Import string "${importStr}" must be in format "<module>:<attribute>".`
+        `Import string "${importStr}" must be in format "<module>:<attribute>".`,
       );
     }
 
@@ -193,7 +193,7 @@ async function updateGraphPaths(
           }
 
           for (const [fauxPkg, [_, destPath]] of Object.entries(
-            localDeps.fauxPkgs
+            localDeps.fauxPkgs,
           )) {
             if (resolved.startsWith(fauxPkg)) {
               moduleStr = `${destPath}/${path.relative(fauxPkg, resolved)}`;
@@ -201,7 +201,7 @@ async function updateGraphPaths(
             }
 
             throw new Error(
-              `Module '${importStr}' not found in 'dependencies' list. Add its containing package to 'dependencies' list.`
+              `Module '${importStr}' not found in 'dependencies' list. Add its containing package to 'dependencies' list.`,
             );
           }
         }
@@ -232,7 +232,7 @@ export async function configToDocker(
     watch: boolean;
     dockerCommand?: string;
     onWorkingDir?: (workingDir: string | undefined) => void;
-  }
+  },
 ) {
   // figure out the package manager used here
   const testFile = async (file: string) =>
@@ -264,16 +264,16 @@ export async function configToDocker(
     : undefined;
 
   const pipReqs = localDeps.pipReqs.map(
-    ([reqpath, destpath]) => `ADD ${reqpath} ${destpath}`
+    ([reqpath, destpath]) => `ADD ${reqpath} ${destpath}`,
   );
   if (pipReqs.length) {
     pipReqs.push(
-      `RUN ${pipInstall} ${localDeps.pipReqs.map(([, r]) => `-r ${r}`).join(" ")}`
+      `RUN ${pipInstall} ${localDeps.pipReqs.map(([, r]) => `-r ${r}`).join(" ")}`,
     );
   }
 
   const localPkg = Object.entries(localDeps.realPkgs).map(
-    ([fullpath, relpath]) => `ADD ${relpath} /deps/${path.basename(fullpath)}`
+    ([fullpath, relpath]) => `ADD ${relpath} /deps/${path.basename(fullpath)}`,
   );
 
   const fauxPkgs = Object.entries(localDeps.fauxPkgs).flatMap(
@@ -289,7 +289,7 @@ export async function configToDocker(
                 echo "${options?.dockerCommand === "build" ? "$line" : "$$line"}" >> /deps/__outer_${path.basename(fullpath)}/pyproject.toml; \
             done
       `,
-    ]
+    ],
   );
 
   if (
@@ -344,7 +344,7 @@ export async function configToDocker(
   if (options?.watch && (localDeps.workingDir || localDeps.reloadDir)) {
     // TODO: hacky, should add as entrypoint to the langgraph-api base image
     lines.push(
-      `CMD exec uvicorn langgraph_api.server:app --log-config /api/logging.json --no-access-log --host 0.0.0.0 --port 8000 --reload --reload-dir ${localDeps.workingDir || localDeps.reloadDir}`
+      `CMD exec uvicorn langgraph_api.server:app --log-config /api/logging.json --no-access-log --host 0.0.0.0 --port 8000 --reload --reload-dir ${localDeps.workingDir || localDeps.reloadDir}`,
     );
   }
 
@@ -354,7 +354,7 @@ export async function configToDocker(
 export async function configToWatch(
   configPath: string,
   config: Config,
-  localDeps: LocalDeps
+  localDeps: LocalDeps,
 ) {
   const projectDir = path.dirname(configPath);
   const watch: Array<{
@@ -405,7 +405,7 @@ export async function configToCompose(
   options?: {
     watch: boolean;
     extendEnv?: Record<string, string>;
-  }
+  },
 ): Promise<{
   apiDef: Record<string, unknown>;
   rewrite: { source: string; target: string } | undefined;

libs/langgraph-cli/src/docker/shell.mts

@@ -53,8 +53,8 @@ async function getLoginPath() {
 
   const [fromShell, fromBackup] = await Promise.allSettled(
     [extractPathFromShell(), guessUserPath()].map((promise) =>
-      promise.then(verifyDockerPath)
-    )
+      promise.then(verifyDockerPath),
+    ),
   );
 
   if (fromShell.status === "fulfilled") {
@@ -65,7 +65,7 @@ async function getLoginPath() {
     console.error(
       "Failed to get PATH from shell or backup",
       fromShell.reason,
-      fromBackup.reason
+      fromBackup.reason,
     );
     throw fromShell.reason || fromBackup.reason;
   }
@@ -76,7 +76,7 @@ async function getLoginPath() {
 type CommonOptions = Exclude<Parameters<ExecaScriptMethod>[1], undefined>;
 
 export async function getExecaOptions<T extends CommonOptions = {}>(
-  options?: T
+  options?: T,
 ) {
   const env = await getLoginPath();
   return { ...options, env } as T & { env: typeof env };

libs/langgraph-cli/src/utils/config.mts

@@ -7,7 +7,7 @@ const BaseConfigSchema = z.object({
   graphs: z.record(
     z.string().refine((i) => i.includes(":"), {
       message: "Import string must be in format '<file>:<export>'",
-    })
+    }),
   ),
   _INTERNAL_docker_tag: z.string().optional(),
   env: z
@@ -45,16 +45,16 @@ const PythonConfigSchema = BaseConfigSchema.merge(
     dependencies: z
       .array(z.string())
       .nonempty("You need to specify at least one dependency"),
-  })
+  }),
 ).merge(
   z.object({
     python_version: PythonVersionSchema.default(DEFAULT_PYTHON_VERSION),
     node_version: NodeVersionSchema.optional(),
-  })
+  }),
 );
 
 const NodeConfigSchema = BaseConfigSchema.merge(
-  z.object({ node_version: NodeVersionSchema.default(DEFAULT_NODE_VERSION) })
+  z.object({ node_version: NodeVersionSchema.default(DEFAULT_NODE_VERSION) }),
 );
 
 const ConfigSchema = z.union([NodeConfigSchema, PythonConfigSchema]);
@@ -66,7 +66,7 @@ export const getConfig = (config: z.input<typeof ConfigSchema> | string) => {
   const { graphs } = BaseConfigSchema.parse(input);
 
   const isPython = Object.values(graphs).map((i) =>
-    PYTHON_EXTENSIONS.includes(extname(i.split(":")[0]))
+    PYTHON_EXTENSIONS.includes(extname(i.split(":")[0])),
   );
   const somePython = isPython.some((i) => i);
   const someNode = !isPython.every((i) => i);

libs/langgraph-cli/src/utils/logging.mts

@@ -48,7 +48,7 @@ export const logger = createLogger({
 
             return JSON.stringify({ timestamp, level, event, ...rest });
           }),
-        ])
+        ]),
   ),
   transports: [new transports.Console()],
 });
@@ -59,7 +59,7 @@ const formatStack = (stack: string | undefined | null) => {
   const [firstFile] = stacktraceParser(stack).filter(
     (item) =>
       !item.file?.split(path.sep).includes("node_modules") &&
-      !item.file?.startsWith("node:")
+      !item.file?.startsWith("node:"),
   );
 
   if (firstFile?.file && firstFile?.lineNumber) {
@@ -72,7 +72,7 @@ const formatStack = (stack: string | undefined | null) => {
       const spliceIndex = messageLines.findIndex((i) => i.includes(filePath));
 
       const padding = " ".repeat(
-        Math.max(0, messageLines[spliceIndex].indexOf("at"))
+        Math.max(0, messageLines[spliceIndex].indexOf("at")),
       );
 
       const highlightCode = process.stdout.isTTY;
@@ -80,7 +80,7 @@ const formatStack = (stack: string | undefined | null) => {
       let codeFrame = codeFrameColumns(
         readFileSync(filePath, "utf-8"),
         { start: { line, column } },
-        { highlightCode }
+        { highlightCode },
       );
 
       codeFrame = codeFrame
@@ -111,7 +111,7 @@ export const logError = (
   options?: {
     context?: Record<string, unknown>;
     prefix?: string;
-  }
+  },
 ) => {
   let message;
   let context = options?.context;

libs/langgraph-cli/tests/config.test.mts

@@ -35,13 +35,13 @@ describe("config to watch", () => {
 
     const localDeps = await assembleLocalDeps(
       path.resolve(__dirname, "./unit_tests/langgraph.json"),
-      config
+      config,
     );
 
     const watch = await configToWatch(
       path.resolve(__dirname, "./unit_tests/langgraph.json"),
       config,
-      localDeps
+      localDeps,
     );
 
     expect(watch).toEqual([
@@ -65,13 +65,13 @@ describe("config to watch", () => {
 
     const localDeps = await assembleLocalDeps(
       path.resolve(__dirname, "./unit_tests/langgraph.json"),
-      config
+      config,
     );
 
     const watch = await configToWatch(
       path.resolve(__dirname, "./unit_tests/langgraph.json"),
       config,
-      localDeps
+      localDeps,
     );
 
     expect(watch).toEqual([
@@ -113,7 +113,7 @@ describe("config to docker", () => {
     const actual = await configToDocker(
       PATH_TO_CONFIG,
       config,
-      await assembleLocalDeps(PATH_TO_CONFIG, config)
+      await assembleLocalDeps(PATH_TO_CONFIG, config),
     );
 
     expect(actual).toEqual(dedenter`
@@ -144,7 +144,7 @@ describe("config to docker", () => {
     const actual = await configToDocker(
       PATH_TO_CONFIG,
       config,
-      await assembleLocalDeps(PATH_TO_CONFIG, config)
+      await assembleLocalDeps(PATH_TO_CONFIG, config),
     );
 
     expect(actual).toEqual(dedenter`
@@ -178,7 +178,7 @@ describe("config to docker", () => {
       await configToDocker(
         PATH_TO_CONFIG,
         config,
-        await assembleLocalDeps(PATH_TO_CONFIG, config)
+        await assembleLocalDeps(PATH_TO_CONFIG, config),
       );
     }).rejects.toThrowError(/Could not find local dependency/);
 
@@ -194,7 +194,7 @@ describe("config to docker", () => {
       await configToDocker(
         PATH_TO_CONFIG,
         config,
-        await assembleLocalDeps(PATH_TO_CONFIG, config)
+        await assembleLocalDeps(PATH_TO_CONFIG, config),
       );
     }).rejects.toThrowError(/Could not find local module/);
   });
@@ -210,7 +210,7 @@ describe("config to docker", () => {
     const actual = await configToDocker(
       PATH_TO_CONFIG,
       config,
-      await assembleLocalDeps(PATH_TO_CONFIG, config)
+      await assembleLocalDeps(PATH_TO_CONFIG, config),
     );
 
     expect(actual).toEqual(dedenter`
@@ -239,7 +239,7 @@ describe("config to docker", () => {
         version = "0.1"
         dependencies = ["langchain"]
       `,
-      { encoding: "utf-8" }
+      { encoding: "utf-8" },
     );
 
     const graphs = { agent: "./graphs/agent.py:graph" };
@@ -252,7 +252,7 @@ describe("config to docker", () => {
     const actual = await configToDocker(
       PATH_TO_CONFIG,
       config,
-      await assembleLocalDeps(PATH_TO_CONFIG, config)
+      await assembleLocalDeps(PATH_TO_CONFIG, config),
     );
 
     await fs.rm(pyproject);
@@ -279,7 +279,7 @@ describe("config to docker", () => {
     const actual = await configToDocker(
       PATH_TO_CONFIG,
       config,
-      await assembleLocalDeps(PATH_TO_CONFIG, config)
+      await assembleLocalDeps(PATH_TO_CONFIG, config),
     );
 
     expect(actual).toEqual(dedenter`
@@ -314,7 +314,7 @@ describe("config to docker", () => {
     const actual = await configToDocker(
       PATH_TO_CONFIG,
       config,
-      await assembleLocalDeps(PATH_TO_CONFIG, config)
+      await assembleLocalDeps(PATH_TO_CONFIG, config),
     );
 
     // TODO: add support for any packager
@@ -484,7 +484,7 @@ describe("config to compose", () => {
         dependencies: ["."],
         graphs: graph,
       },
-      { watch: true }
+      { watch: true },
     );
 
     expect(yaml.stringify(actual, { blockQuote: "literal" })).toEqual(expected);
@@ -497,7 +497,7 @@ describe("config to compose", () => {
   it("env", async () => {
     const PATH_TO_CONFIG = path.resolve(
       __dirname,
-      "./env_tests/langgraph.json"
+      "./env_tests/langgraph.json",
     );
 
     const graph = { agent: "./agent.py:graph" };
@@ -545,7 +545,7 @@ describe("config to compose", () => {
       {
         watch: true,
         extendEnv: { ANTHROPIC_API_KEY: "key", OPENAI_API_KEY: "key" },
-      }
+      },
     );
 
     expect(yaml.stringify(actual, { blockQuote: "literal" })).toEqual(expected);
@@ -566,10 +566,10 @@ describe("config to compose", () => {
           env: ["OPENAI_API_KEY", "ANTHROPIC_API_KEY"],
           dockerfile_lines: [],
         },
-        { watch: true }
-      )
+        { watch: true },
+      ),
     ).rejects.toThrowError(
-      /Missing environment variables: OPENAI_API_KEY, ANTHROPIC_API_KEY/
+      /Missing environment variables: OPENAI_API_KEY, ANTHROPIC_API_KEY/,
     );
   });
 
@@ -659,7 +659,7 @@ describe("config to compose", () => {
         env: ".env",
         dockerfile_lines: [],
       },
-      { watch: true }
+      { watch: true },
     );
 
     expect(yaml.stringify(actual, { blockQuote: "literal" })).toEqual(expected);
@@ -672,11 +672,11 @@ describe("config to compose", () => {
 
 describe("packaging", () => {
   async function loadConfig(
-    rel: string
+    rel: string,
   ): Promise<[path: string, config: Config]> {
     const res = path.resolve(__dirname, rel);
     const config = getConfig(
-      JSON.parse(await fs.readFile(res, { encoding: "utf-8" }))
+      JSON.parse(await fs.readFile(res, { encoding: "utf-8" })),
     );
     return [res, config];
   }
@@ -684,7 +684,7 @@ describe("packaging", () => {
   it("faux", async () => {
     const { apiDef: actual } = await configToCompose(
       ...(await loadConfig("./packaging_tests/faux/langgraph.json")),
-      { watch: true }
+      { watch: true },
     );
 
     const expected =
@@ -728,7 +728,7 @@ describe("packaging", () => {
   it("js", async () => {
     const { apiDef: actual, rewrite } = await configToCompose(
       ...(await loadConfig("./packaging_tests/js/langgraph.json")),
-      { watch: true }
+      { watch: true },
     );
 
     const expected =
@@ -787,7 +787,7 @@ it("node config and python config", () => {
       dockerfile_lines: [],
       dependencies: ["."],
       graphs: { agent: "./route.ts:agent" },
-    })
+    }),
   ).toEqual({
     node_version: "20",
     dockerfile_lines: [],
@@ -804,7 +804,7 @@ it("node config and python config", () => {
       pip_config_file: undefined,
       dependencies: ["."],
       graphs: { agent: "./agent.py:graph" },
-    })
+    }),
   ).toEqual({
     python_version: "3.11",
     pip_config_file: undefined,
@@ -819,7 +819,7 @@ it("node config and python config", () => {
     getConfig({
       dependencies: ["."],
       graphs: { agent: "./agent.py:graph" },
-    })
+    }),
   ).toEqual({
     python_version: "3.11",
     pip_config_file: undefined,
@@ -842,7 +842,7 @@ it("node config and python config", () => {
     getConfig({
       dependencies: ["."],
       graphs: { js: "./agent.js:graph", py: "./agent.py:graph" },
-    })
+    }),
   ).toEqual({
     python_version: "3.12",
     node_version: "20",
@@ -860,7 +860,7 @@ it("node config and python config", () => {
         python_version: "3.11",
         graphs: { agent: "./agent.py:graph", js: "./agent.js:graph" },
         dependencies: ["."],
-      })
+      }),
     )
     .toThrow("Only Python 3.12 is supported with Node.js");
 
@@ -870,7 +870,7 @@ it("node config and python config", () => {
       getConfig({
         graphs: { agent: "agent.py" },
         dependencies: ["."],
-      })
+      }),
     )
     .toThrow(`Import string must be in format '<file>:<export>'`);
 
@@ -881,7 +881,7 @@ it("node config and python config", () => {
         graphs: { agent: "./agent.py:graph" },
         // @ts-expect-error
         dependencies: [], // Empty array
-      })
+      }),
     )
     .toThrow("You need to specify at least one dependency");
 
@@ -893,7 +893,7 @@ it("node config and python config", () => {
         python_version: "3.10", // Unsupported version
         graphs: { agent: "./agent.py:graph" },
         dependencies: ["."],
-      })
+      }),
     )
     .toThrow();
 
@@ -904,7 +904,7 @@ it("node config and python config", () => {
         // @ts-expect-error
         node_version: "18", // Unsupported version
         graphs: { agent: "./agent.js:graph" },
-      })
+      }),
     )
     .toThrow();
 });

libs/langgraph-cli/tests/docker.test.mts

@@ -48,8 +48,8 @@ it("compose with custom db and healthcheck", () => {
   expect(
     createCompose(
       { ...DEFAULT_DOCKER_CAPABILITIES, healthcheckStartInterval: true },
-      { port, postgresUri }
-    )
+      { port, postgresUri },
+    ),
   ).toEqual(dedent`
       services:
         langgraph-redis:

package.json

@@ -1,6 +1,15 @@
 {
   "name": "langgraphjs-api",
   "private": true,
-  "scripts": {},
-  "keywords": []
+  "packageManager": "pnpm@9.1.1",
+  "scripts": {
+    "clean": "turbo run clean",
+    "build": "turbo run build",
+    "format": "turbo run format",
+    "format:check": "turbo run format:check"
+  },
+  "keywords": [],
+  "devDependencies": {
+    "turbo": "^2.4.0"
+  }
 }

pnpm-lock.yaml

@@ -6,7 +6,11 @@ settings:
 
 importers:
 
-  .: {}
+  .:
+    devDependencies:
+      turbo:
+        specifier: ^2.4.0
+        version: 2.4.0
 
   libs/create-langgraph:
     dependencies:
@@ -1307,6 +1311,40 @@ packages:
     engines: {node: '>=18.0.0'}
     hasBin: true
 
+  turbo-darwin-64@2.4.0:
+    resolution: {integrity: sha512-kVMScnPUa3R4n7woNmkR15kOY0aUwCLJcUyH5UC59ggKqr5HIHwweKYK8N1pwBQso0LQF4I9i93hIzfJguCcwQ==}
+    cpu: [x64]
+    os: [darwin]
+
+  turbo-darwin-arm64@2.4.0:
+    resolution: {integrity: sha512-8JObIpfun1guA7UlFR5jC/SOVm49lRscxMxfg5jZ5ABft79rhFC+ygN9AwAhGKv6W2DUhIh2xENkSgu4EDmUyg==}
+    cpu: [arm64]
+    os: [darwin]
+
+  turbo-linux-64@2.4.0:
+    resolution: {integrity: sha512-xWDGGcRlBuGV7HXWAVuTY6vsQi4aZxGMAnuiuNDg8Ij1aHGohOM0RUsWMXjxz4vuJmjk9+/D6NQqHH3AJEXezg==}
+    cpu: [x64]
+    os: [linux]
+
+  turbo-linux-arm64@2.4.0:
+    resolution: {integrity: sha512-c3En99xMguc/Pdtk/rZP53LnDdw0W6lgUc04he8r8F+UHYSNvgzHh0WGXXmCC6lGbBH72kPhhGx4bAwyvi7dug==}
+    cpu: [arm64]
+    os: [linux]
+
+  turbo-windows-64@2.4.0:
+    resolution: {integrity: sha512-/gOORuOlyA8JDPzyA16CD3wvyRcuBFePa1URAnFUof9hXQmKxK0VvSDO79cYZFsJSchCKNJpckUS0gYxGsWwoA==}
+    cpu: [x64]
+    os: [win32]
+
+  turbo-windows-arm64@2.4.0:
+    resolution: {integrity: sha512-/DJIdTFijEMM5LSiEpSfarDOMOlYqJV+EzmppqWtHqDsOLF4hbbIBH9sJR6OOp5dURAu5eURBYdmvBRz9Lo6TA==}
+    cpu: [arm64]
+    os: [win32]
+
+  turbo@2.4.0:
+    resolution: {integrity: sha512-ah/yQp2oMif1X0u7fBJ4MLMygnkbKnW5O8SG6pJvloPCpHfFoZctkSVQiJ3VnvNTq71V2JJIdwmOeu1i34OQyg==}
+    hasBin: true
+
   type-fest@0.7.1:
     resolution: {integrity: sha512-Ne2YiiGN8bmrmJJEuTWTLJR32nh/JdL1+PSicowtNb0WFpn59GK8/lfD61bVtzguz7b3PBt74nxpv/Pw5po5Rg==}
     engines: {node: '>=8'}
@@ -2385,6 +2423,33 @@ snapshots:
     optionalDependencies:
       fsevents: 2.3.3
 
+  turbo-darwin-64@2.4.0:
+    optional: true
+
+  turbo-darwin-arm64@2.4.0:
+    optional: true
+
+  turbo-linux-64@2.4.0:
+    optional: true
+
+  turbo-linux-arm64@2.4.0:
+    optional: true
+
+  turbo-windows-64@2.4.0:
+    optional: true
+
+  turbo-windows-arm64@2.4.0:
+    optional: true
+
+  turbo@2.4.0:
+    optionalDependencies:
+      turbo-darwin-64: 2.4.0
+      turbo-darwin-arm64: 2.4.0
+      turbo-linux-64: 2.4.0
+      turbo-linux-arm64: 2.4.0
+      turbo-windows-64: 2.4.0
+      turbo-windows-arm64: 2.4.0
+
   type-fest@0.7.1: {}
 
   typescript@5.5.4: {}

turbo.json

@@ -0,0 +1,26 @@
+{
+  "$schema": "https://turbo.build/schema.json",
+  "tasks": {
+    "build": {
+      "dependsOn": ["^build"],
+      "outputs": ["dist/**"]
+    },
+    "format": {
+      "dependsOn": ["^format"]
+    },
+    "format:check": {
+      "dependsOn": ["^format:check"]
+    },
+    "test": {
+      "cache": false,
+      "dependsOn": ["^build", "build"]
+    },
+    "clean": {
+      "dependsOn": ["^clean"]
+    },
+    "precommit": {},
+    "start": {
+      "cache": false
+    }
+  }
+}