feat(langgraph): add response_schema to interrupt() (#8886 )

Adds an optional keyword-only `response_schema` to `interrupt()`, carried on `Interrupt.response_schema` as JSON Schema so clients (LangGraph Studio first) can render a typed form for the resume value instead of a free-form JSON box. Default `None`, so nothing changes for existing graphs. - Accepts a JSON Schema dict (passed through, not validated) or a Pydantic model / `TypedDict` / dataclass, converted with `TypeAdapter.json_schema()`. For those, the resume value is validated and the validated object is what `interrupt()` returns; an invalid value raises from the node before it is committed, so the next resume works. - Additive on the `stream_mode="debug"` payload: interrupt dicts gain `response_schema` (it is a dataclass field, serialized with `asdict`). - `libs/sdk-py`: mirrors the field on the `Interrupt` TypedDict as `NotRequired`; the server omits the key when no schema was given. JS counterpart: langchain-ai/langgraphjs#2824. Verified: new tests parametrized across every checkpointer backend (schema kinds, coercion, invalid resume) plus the full `libs/langgraph` suite and downstream `prebuilt`, `cli`, `sdk-py`; round-tripped end to end through the agent server with this branch installed.
docs: publish the generated llms.txt instead of a hand-written copy (#8922 )
2026-09-17 23:27:56 +02:00 · 2026-09-17 11:33:37 -04:00 · 2026-09-14 15:45:19 -04:00
9 changed files with 359 additions and 129 deletions
@@ -7,6 +7,10 @@ on:
    paths:
      - 'docs/**'
      - '.github/workflows/deploy-redirects.yml'
  # llms.txt is fetched from docs.langchain.com at build time, so redeploy on a
  # schedule to pick up docs changes that never touch this repo.
  schedule:
    - cron: '17 6 * * 1'
  workflow_dispatch:
 permissions:
@@ -12,13 +12,26 @@ which is SEO-friendly and treated similarly to 301 redirects by Google.
 To add new redirects, simply edit redirects.json and re-run this script.
 """
 import http.client
 import json
 import os
 import urllib.error
 import urllib.parse
 import urllib.request
 from pathlib import Path
 # Default fallback URL for any path not in the redirect map
 DEFAULT_REDIRECT = "https://docs.langchain.com/oss/python/langgraph/overview"
 # The docs site regenerates this index on every deploy, so fetching it here
 # keeps the published llms.txt from drifting. The URL is a hardcoded constant,
 # never built from input, and both it and the post-redirect URL are checked
 # against ALLOWED_LLMS_HOST before anything is read.
 CANONICAL_LLMS_URL = "https://docs.langchain.com/oss/python/langgraph/llms.txt"
 ALLOWED_LLMS_HOST = "docs.langchain.com"
 LLMS_FETCH_TIMEOUT = 30
 LLMS_MAX_BYTES = 1_000_000
 HTML_TEMPLATE = """<!doctype html>
 <html lang="en">
 <head>
@@ -75,6 +88,64 @@ CATCHALL_404_TEMPLATE = """<!doctype html>
 """
 def is_allowed_llms_url(url):
    """Return True if url is HTTPS on the one host we accept content from."""
    parsed = urllib.parse.urlsplit(url)
    return parsed.scheme == "https" and parsed.hostname == ALLOWED_LLMS_HOST
 def fetch_canonical_llms_txt():
    """Return the published LangGraph index, or None if it cannot be used.
    Returning None leaves the caller on the committed docs/llms.txt, so a
    docs.langchain.com outage degrades to a stale file rather than a broken
    deploy or a published error page.
    """
    if not is_allowed_llms_url(CANONICAL_LLMS_URL):
        print(f"Refusing to fetch {CANONICAL_LLMS_URL}: host not allowed")
        return None
    try:
        with urllib.request.urlopen(  # noqa: S310 - constant, allowlisted URL
            CANONICAL_LLMS_URL, timeout=LLMS_FETCH_TIMEOUT
        ) as response:
            # urlopen follows redirects, so re-check where it actually landed.
            if not is_allowed_llms_url(response.url):
                print(f"Refusing {CANONICAL_LLMS_URL}: redirected to {response.url}")
                return None
            body = response.read(LLMS_MAX_BYTES + 1)
    # A connection dropped mid-body raises http.client.IncompleteRead, which
    # descends from HTTPException rather than OSError, so catching only the
    # urllib and OS errors would let it escape and fail the whole deploy.
    except (
        urllib.error.URLError,
        http.client.HTTPException,
        TimeoutError,
        OSError,
    ) as exc:
        print(f"Could not fetch {CANONICAL_LLMS_URL}: {type(exc).__name__}: {exc}")
        return None
    if len(body) > LLMS_MAX_BYTES:
        print(f"Refusing {CANONICAL_LLMS_URL}: larger than {LLMS_MAX_BYTES} bytes")
        return None
    try:
        text = body.decode("utf-8")
    except UnicodeDecodeError as exc:
        print(f"Refusing {CANONICAL_LLMS_URL}: not valid UTF-8: {exc}")
        return None
    # An index opens with a markdown heading and links to the docs site. A
    # body that does not is an error page or a truncated response, not content
    # worth publishing.
    if not text.startswith("# ") or f"https://{ALLOWED_LLMS_HOST}/" not in text:
        print(f"Refusing {CANONICAL_LLMS_URL}: does not look like an llms.txt index")
        return None
    return text
 def generate_redirects():
    script_dir = Path(__file__).parent
    output_dir = script_dir / "_site"
@@ -126,14 +197,19 @@ def generate_redirects():
    catchall_404.write_text(CATCHALL_404_TEMPLATE.format(default_url=DEFAULT_REDIRECT))
    print(f"Created: {catchall_404}")
-    # Copy static files (like llms.txt) that can't be redirected via HTML
+    # llms.txt can't be redirected via HTML, so publish the docs site's own
-    static_files = ["llms.txt"]
+    # generated index. The committed copy is only a fallback.
-    for static_file in static_files:
+    llms_txt = fetch_canonical_llms_txt()
-        src = script_dir / static_file
+    if llms_txt is not None:
        (output_dir / "llms.txt").write_text(llms_txt)
        print(f"Fetched: {output_dir / 'llms.txt'} (from {CANONICAL_LLMS_URL})")
    else:
        src = script_dir / "llms.txt"
        if src.exists():
-            dst = output_dir / static_file
+            (output_dir / "llms.txt").write_text(src.read_text())
-            dst.write_text(src.read_text())
+            print(f"Copied: {output_dir / 'llms.txt'} (fallback, may be stale)")
-            print(f"Copied: {dst}")
+        else:
            print("No llms.txt fetched and no committed fallback; skipping")
    print(f"\nGenerated {len(redirects)} redirect files in {output_dir}")
@@ -1,35 +1,49 @@
-# LangGraph
+# Docs by LangChain: LangGraph (Python)
-LangGraph documentation has moved to docs.langchain.com.
+> Markdown index of the LangGraph (Python) documentation.
-## Overview
+## LangGraph (Python)
- [LangGraph Overview](https://docs.langchain.com/oss/python/langgraph/overview): Introduction to LangGraph, a library for building stateful, multi-actor applications with LLMs.
+- [Memory](https://docs.langchain.com/oss/python/langgraph/add-memory.md)
- [Why LangGraph?](https://docs.langchain.com/oss/python/langgraph/why-langgraph): Motivation for LangGraph and its key features.
+- [Build a custom RAG agent with LangGraph](https://docs.langchain.com/oss/python/langgraph/agentic-rag.md)
-
+- [Application structure](https://docs.langchain.com/oss/python/langgraph/application-structure.md)
-## Core Concepts
+- [Backward compatibility](https://docs.langchain.com/oss/python/langgraph/backward-compatibility.md)
-
+- [Case studies](https://docs.langchain.com/oss/python/langgraph/case-studies.md)
- [Graph API](https://docs.langchain.com/oss/python/langgraph/graph-api): Learn how to define state, create nodes, and connect them with edges.
+- [Changelog](https://docs.langchain.com/oss/python/langgraph/changelog-js.md)
- [Streaming](https://docs.langchain.com/oss/python/langgraph/streaming): Stream outputs from your graph for better UX.
+- [Changelog](https://docs.langchain.com/oss/python/langgraph/changelog-py.md)
- [Persistence](https://docs.langchain.com/oss/python/langgraph/persistence): Add memory and checkpointing to your graphs.
+- [Checkpointers](https://docs.langchain.com/oss/python/langgraph/checkpointers.md)
- [Add Memory](https://docs.langchain.com/oss/python/langgraph/add-memory): Implement short-term and long-term memory.
+- [Choosing between Graph and Functional APIs](https://docs.langchain.com/oss/python/langgraph/choosing-apis.md)
- [Workflows & Agents](https://docs.langchain.com/oss/python/langgraph/workflows-agents): Build agents and workflows with LangGraph.
+- [Deployment](https://docs.langchain.com/oss/python/langgraph/deploy.md)
-
+- [GRAPH_RECURSION_LIMIT](https://docs.langchain.com/oss/python/langgraph/errors/GRAPH_RECURSION_LIMIT.md)
-## How-To Guides
+- [INVALID_CHAT_HISTORY](https://docs.langchain.com/oss/python/langgraph/errors/INVALID_CHAT_HISTORY.md)
-
+- [INVALID_CONCURRENT_GRAPH_UPDATE](https://docs.langchain.com/oss/python/langgraph/errors/INVALID_CONCURRENT_GRAPH_UPDATE.md)
- [Use Subgraphs](https://docs.langchain.com/oss/python/langgraph/use-subgraphs): Compose graphs using subgraphs.
+- [INVALID_GRAPH_NODE_RETURN_VALUE](https://docs.langchain.com/oss/python/langgraph/errors/INVALID_GRAPH_NODE_RETURN_VALUE.md)
- [Observability](https://docs.langchain.com/oss/python/langgraph/observability): Add tracing and debugging to your graphs.
+- [MISSING_CHECKPOINTER](https://docs.langchain.com/oss/python/langgraph/errors/MISSING_CHECKPOINTER.md)
- [Common Errors](https://docs.langchain.com/oss/python/langgraph/common-errors): Troubleshoot common LangGraph errors.
+- [MULTIPLE_SUBGRAPHS](https://docs.langchain.com/oss/python/langgraph/errors/MULTIPLE_SUBGRAPHS.md)
-
+- [Event streaming](https://docs.langchain.com/oss/python/langgraph/event-streaming.md)
-## Tutorials
+- [Fault tolerance](https://docs.langchain.com/oss/python/langgraph/fault-tolerance.md)
-
+- [Custom stream channels](https://docs.langchain.com/oss/python/langgraph/frontend/custom-stream-channels.md)
- [Agentic RAG](https://docs.langchain.com/oss/python/langgraph/agentic-rag): Build an agentic RAG system with LangGraph.
+- [Graph execution](https://docs.langchain.com/oss/python/langgraph/frontend/graph-execution.md)
- [SQL Agent](https://docs.langchain.com/oss/python/langgraph/sql-agent): Create a SQL agent with LangGraph.
+- [Overview](https://docs.langchain.com/oss/python/langgraph/frontend/overview.md)
-
+- [Functional API overview](https://docs.langchain.com/oss/python/langgraph/functional-api.md)
-## Reference
+- [Graph API overview](https://docs.langchain.com/oss/python/langgraph/graph-api.md)
-
+- [Install LangGraph](https://docs.langchain.com/oss/python/langgraph/install.md)
- [API Reference](https://reference.langchain.com/python/langgraph/): Complete API documentation for LangGraph.
+- [Interrupts](https://docs.langchain.com/oss/python/langgraph/interrupts.md)
-
+- [Run a local server](https://docs.langchain.com/oss/python/langgraph/local-server.md)
-## LangGraph Platform
+- [LangSmith Observability](https://docs.langchain.com/oss/python/langgraph/observability.md)
-
+- [LangGraph overview](https://docs.langchain.com/oss/python/langgraph/overview.md)
-For deploying LangGraph applications in production, see the [LangSmith documentation](https://docs.langchain.com/langsmith/agent-server).
+- [Persistence](https://docs.langchain.com/oss/python/langgraph/persistence.md)
 - [LangGraph runtime](https://docs.langchain.com/oss/python/langgraph/pregel.md)
 - [Quickstart](https://docs.langchain.com/oss/python/langgraph/quickstart.md)
 - [Build a custom SQL agent](https://docs.langchain.com/oss/python/langgraph/sql-agent.md)
 - [Stores](https://docs.langchain.com/oss/python/langgraph/stores.md)
 - [Streaming](https://docs.langchain.com/oss/python/langgraph/streaming.md)
 - [LangSmith Studio](https://docs.langchain.com/oss/python/langgraph/studio.md)
 - [Test](https://docs.langchain.com/oss/python/langgraph/test.md)
 - [Thinking in LangGraph](https://docs.langchain.com/oss/python/langgraph/thinking-in-langgraph.md)
 - [Agent Chat UI](https://docs.langchain.com/oss/python/langgraph/ui.md)
 - [Use the functional API](https://docs.langchain.com/oss/python/langgraph/use-functional-api.md)
 - [Use the graph API](https://docs.langchain.com/oss/python/langgraph/use-graph-api.md)
 - [Subgraphs](https://docs.langchain.com/oss/python/langgraph/use-subgraphs.md)
 - [Use time-travel](https://docs.langchain.com/oss/python/langgraph/use-time-travel.md)
 - [Workflows and agents](https://docs.langchain.com/oss/python/langgraph/workflows-agents.md)
@@ -51,7 +51,6 @@ RESERVED_ENV_VARS = frozenset(
        "LANGGRAPH_AUTH_TYPE",
        "LANGSMITH_AUTH_ENDPOINT",
        "LANGSMITH_TENANT_ID",
        "LANGSMITH_WORKSPACE_ID",
        "LANGSMITH_AUTH_VERIFY_TENANT_ID",
        "LANGSMITH_HOST_PROJECT_ID",
        "LANGSMITH_HOST_PROJECT_NAME",
@@ -1230,24 +1229,6 @@ def _run_remote_build(
 # ---------------------------------------------------------------------------
 def _get_tenant_id(env_vars: dict[str, str]) -> str | None:
    """Get the tenant ID from LANGSMITH_TENANT_ID or LANGSMITH_WORKSPACE_ID."""
    tenant_id = env_vars.get("LANGSMITH_TENANT_ID") or os.environ.get(
        "LANGSMITH_TENANT_ID"
    )
    fallback_tenant_id = env_vars.get("LANGSMITH_WORKSPACE_ID") or os.environ.get(
        "LANGSMITH_WORKSPACE_ID"
    )
    if tenant_id and fallback_tenant_id:
        raise click.UsageError(
            "LANGSMITH_TENANT_ID and LANGSMITH_WORKSPACE_ID cannot both be set. "
            "Set only one."
        )
    if tenant_id:
        return tenant_id
    return fallback_tenant_id or None
 def _create_host_backend_client(
    host_url: str | None,
    api_key: str | None,
@@ -1255,7 +1236,6 @@ def _create_host_backend_client(
 ) -> HostBackendClient:
    if env_vars is None:
        env_vars = _parse_env_from_config({}, pathlib.Path.cwd() / DEFAULT_CONFIG)
    tenant_id = _get_tenant_id(env_vars)
    resolved_api_key = api_key
    if not resolved_api_key:
        for key_name in _API_KEY_ENV_NAMES:
@@ -1278,6 +1258,9 @@ def _create_host_backend_client(
            fg="yellow",
        )
        resolved_api_key = click.prompt("Enter LangSmith API key", hide_input=True)
    tenant_id = env_vars.get("LANGSMITH_TENANT_ID") or os.environ.get(
        "LANGSMITH_TENANT_ID"
    )
    return HostBackendClient(host_url, resolved_api_key, tenant_id=tenant_id)
@@ -21,7 +21,6 @@ from langgraph_cli.deploy import (
    _parse_env_from_config,
    _resolve_env_path,
    _resolve_pushed_image_digest,
    _secrets_from_env,
    _smith_dashboard_base_url,
    _validate_prebuilt_image,
    normalize_image_tag,
@@ -541,63 +540,6 @@ class TestCreateHostBackendClientNoInput:
        assert client is not None
@pytest.mark.parametrize("source", ["config", "shell"])
@pytest.mark.parametrize("name", ["LANGSMITH_TENANT_ID", "LANGSMITH_WORKSPACE_ID"])
 def test_workspace_id_alias(monkeypatch, source, name):
    monkeypatch.delenv("LANGSMITH_WORKSPACE_ID", raising=False)
    monkeypatch.delenv("LANGSMITH_TENANT_ID", raising=False)
    env_vars = {}
    if source == "config":
        env_vars[name] = "workspace"
    else:
        monkeypatch.setenv(name, "workspace")
    def handler(request):
        assert request.headers["X-Tenant-ID"] == "workspace"
        return httpx.Response(200, json={"resources": []})
    monkeypatch.setattr(
        httpx, "HTTPTransport", lambda **kwargs: httpx.MockTransport(handler)
    )
    client = _create_host_backend_client(
        "https://api.example.com", "test-key", env_vars
    )
    try:
        client.list_deployments()
    finally:
        client._client.close()
@pytest.mark.parametrize("tenant_source", ["config", "shell"])
@pytest.mark.parametrize("workspace_source", ["config", "shell"])
@pytest.mark.parametrize("workspace_id", ["tenant-id", "workspace-id"])
 def test_rejects_both_workspace_names(
    monkeypatch, tenant_source, workspace_source, workspace_id
 ):
    env_vars = {}
    for name, source, value in [
        ("LANGSMITH_TENANT_ID", tenant_source, "tenant-id"),
        ("LANGSMITH_WORKSPACE_ID", workspace_source, workspace_id),
    ]:
        monkeypatch.delenv(name, raising=False)
        if source == "config":
            env_vars[name] = value
        else:
            monkeypatch.setenv(name, value)
    with pytest.raises(
        click.UsageError,
        match="LANGSMITH_TENANT_ID and LANGSMITH_WORKSPACE_ID cannot both be set",
    ):
        _create_host_backend_client("https://api.example.com", "test-key", env_vars)
 def test_workspace_id_is_not_uploaded_as_secret():
    assert _secrets_from_env(
        {"LANGSMITH_WORKSPACE_ID": "workspace", "APP_SETTING": "value"}
    ) == [{"name": "APP_SETTING", "value": "value"}]
 class TestSmithDashboardBaseUrl:
    def test_none_returns_default(self):
        assert _smith_dashboard_base_url(None) == "https://smith.langchain.com"
@@ -12,15 +12,23 @@ from typing import (
    Generic,
    Literal,
    NamedTuple,
    TypeVar,
    final,
    overload,
 )
 from warnings import warn
 from langchain_core.messages import AnyMessage
 from langchain_core.runnables import Runnable, RunnableConfig
 from langgraph.checkpoint.base import BaseCheckpointSaver, CheckpointMetadata
-from typing_extensions import NotRequired, TypeAliasType, TypedDict, Unpack, deprecated
+from pydantic import TypeAdapter
 from typing_extensions import (
    NotRequired,
    TypeAliasType,
    TypedDict,
    TypeVar,
    Unpack,
    deprecated,
 )
 from xxhash import xxh3_128_hexdigest
 from langgraph._internal._cache import default_cache_key
@@ -36,6 +44,7 @@ from langgraph.warnings import LangGraphDeprecatedSinceV10, LangGraphDeprecatedS
 # when used in standalone type aliases.
 StateT = TypeVar("StateT")
 OutputT = TypeVar("OutputT")
 ResponseT = TypeVar("ResponseT", default=Any)
 if TYPE_CHECKING:
    from langgraph.pregel.protocol import PregelProtocol
@@ -572,7 +581,7 @@ _DEFAULT_INTERRUPT_ID = "placeholder-id"
@final
@dataclass(init=False, slots=True)
-class Interrupt:
+class Interrupt(Generic[ResponseT]):
    """Information about an interrupt that occurred in a node.
    !!! version-added "Added in version 0.2.24"
@@ -596,13 +605,22 @@ class Interrupt:
    id: str
    """The ID of the interrupt. Can be used to resume the interrupt directly."""
    response_schema: type[ResponseT] | dict[str, Any] | None = None
    """Schema for the value expected when resuming this interrupt, if the graph provided one.
    A surfaced interrupt carries JSON Schema (a `dict`); `type[ResponseT]` records the
    Python type at construction so `Interrupt[Decision]` is meaningful to type checkers."""
    def __init__(
        self,
        value: Any,
        id: str = _DEFAULT_INTERRUPT_ID,
        *,
        response_schema: type[ResponseT] | dict[str, Any] | None = None,
        **deprecated_kwargs: Unpack[DeprecatedKwargs],
    ) -> None:
        self.value = value
        self.response_schema = response_schema
        if (
            (ns := deprecated_kwargs.get("ns", MISSING)) is not MISSING
@@ -614,8 +632,18 @@ class Interrupt:
            self.id = id
    @classmethod
-    def from_ns(cls, value: Any, ns: str) -> Interrupt:
+    def from_ns(
-        return cls(value=value, id=xxh3_128_hexdigest(ns.encode()))
+        cls,
        value: Any,
        ns: str,
        *,
        response_schema: type[ResponseT] | dict[str, Any] | None = None,
    ) -> Interrupt[ResponseT]:
        return cls(
            value=value,
            id=xxh3_128_hexdigest(ns.encode()),
            response_schema=response_schema,
        )
    @property
    @deprecated("`interrupt_id` is deprecated. Use `id` instead.", category=None)
@@ -848,7 +876,17 @@ class Command(Generic[N], ToolOutputMixin):
    PARENT: ClassVar[Literal["__parent__"]] = "__parent__"
-def interrupt(value: Any) -> Any:
+@overload
 def interrupt(value: Any, *, response_schema: type[ResponseT]) -> ResponseT: ...
@overload
 def interrupt(value: Any, *, response_schema: dict[str, Any] | None = None) -> Any: ...
 def interrupt(
    value: Any, *, response_schema: dict[str, Any] | type | None = None
 ) -> Any:
    """Interrupt the graph with a resumable exception from within a node.
    The `interrupt` function enables human-in-the-loop workflows by pausing graph
@@ -918,7 +956,7 @@ def interrupt(value: Any) -> Any:
        for chunk in graph.stream({\"foo\": \"abc\"}, config):
            print(chunk)
-        # > {'__interrupt__': (Interrupt(value='what is your age?', id='45fda8478b2ef754419799e10992af06'),)}
+        # > {'__interrupt__': (Interrupt(value='what is your age?', id='45fda8478b2ef754419799e10992af06', response_schema=None),)}
        command = Command(resume=\"some input from a human!!!\")
@@ -931,12 +969,20 @@ def interrupt(value: Any) -> Any:
    Args:
        value: The value to surface to the client when the graph is interrupted.
        response_schema: Optional schema for the value expected on resume, surfaced
            to clients so they can render a typed input form. Accepts a JSON Schema
            `dict` (used as-is, resume values are not validated), or a Pydantic model
            class, `TypedDict`, or dataclass, which are converted to JSON Schema for
            clients and used to validate the resume value; the validated object is
            what `interrupt` returns.
    Returns:
-        Any: On subsequent invocations within the same node (same task to be precise), returns the value provided during the first invocation
+        Any: On subsequent invocations within the same node (same task to be precise), returns the value provided during the first invocation,
            validated against `response_schema` when one that supports validation was given.
    Raises:
        GraphInterrupt: On the first invocation within the node, halts execution and surfaces the provided value to the client.
        pydantic.ValidationError: When a resume value does not match a Pydantic model, `TypedDict`, or dataclass `response_schema`.
    """
    from langgraph._internal._constants import (
        CONFIG_KEY_CHECKPOINT_NS,
@@ -948,27 +994,36 @@ def interrupt(value: Any) -> Any:
    from langgraph.errors import GraphInterrupt
    conf = get_config()["configurable"]
    adapter = (
        None
        if response_schema is None or isinstance(response_schema, dict)
        else TypeAdapter(response_schema)
    )
    # track interrupt index
    scratchpad = conf[CONFIG_KEY_SCRATCHPAD]
    idx = scratchpad.interrupt_counter()
    # find previous resume values
    if scratchpad.resume:
        if idx < len(scratchpad.resume):
-            conf[CONFIG_KEY_SEND]([(RESUME, scratchpad.resume)])
+            v = scratchpad.resume[idx]
-            return scratchpad.resume[idx]
+            validated = adapter.validate_python(v) if adapter else v
            conf[CONFIG_KEY_SEND]([(RESUME, scratchpad.resume[: idx + 1])])
            return validated
    # find current resume value
    v = scratchpad.get_null_resume(True)
    if v is not None:
        assert len(scratchpad.resume) == idx, (scratchpad.resume, idx)
        validated = adapter.validate_python(v) if adapter else v
        scratchpad.resume.append(v)
        conf[CONFIG_KEY_SEND]([(RESUME, scratchpad.resume)])
-        return v
+        return validated
    # no resume value found
    raise GraphInterrupt(
        (
            Interrupt.from_ns(
                value=value,
                ns=conf[CONFIG_KEY_CHECKPOINT_NS],
                response_schema=adapter.json_schema() if adapter else response_schema,
            ),
        )
    )
@@ -1,9 +1,14 @@
 from dataclasses import dataclass
 from typing import Any
 import pytest
 from langgraph.checkpoint.base import BaseCheckpointSaver
 from pydantic import BaseModel, ValidationError
 from typing_extensions import TypedDict
 from langgraph.graph import END, START, StateGraph
-from langgraph.types import Durability
+from langgraph.types import Command, Durability, Interrupt, interrupt
 from tests.any_str import AnyStr
 pytestmark = pytest.mark.anyio
@@ -90,3 +95,150 @@ async def test_interruption_without_state_updates_async(
    assert (await graph.aget_state(thread)).next == ()
    n_checkpoints = len([c async for c in graph.aget_state_history(thread)])
    assert n_checkpoints == (5 if durability != "exit" else 3)
 class Decision(BaseModel):
    approved: bool
    note: str | None = None
 class DecisionDict(TypedDict):
    approved: bool
@dataclass
 class DecisionData:
    approved: bool
 RAW_SCHEMA = {"type": "object", "properties": {"approved": {"type": "boolean"}}}
@pytest.mark.parametrize(
    ("response_schema", "expected_schema", "expected_answer"),
    [
        (None, None, {"approved": True, "extra": 1}),
        (RAW_SCHEMA, RAW_SCHEMA, {"approved": True, "extra": 1}),
        (Decision, Decision.model_json_schema(), Decision(approved=True)),
        (
            DecisionDict,
            {
                "properties": {"approved": {"title": "Approved", "type": "boolean"}},
                "required": ["approved"],
                "title": "DecisionDict",
                "type": "object",
            },
            {"approved": True},
        ),
        (
            DecisionData,
            {
                "properties": {"approved": {"title": "Approved", "type": "boolean"}},
                "required": ["approved"],
                "title": "DecisionData",
                "type": "object",
            },
            DecisionData(approved=True),
        ),
    ],
    ids=["none", "raw_dict", "pydantic", "typeddict", "dataclass"],
 )
 def test_interrupt_response_schema(
    sync_checkpointer: BaseCheckpointSaver,
    response_schema: Any,
    expected_schema: dict[str, Any] | None,
    expected_answer: Any,
 ) -> None:
    class State(TypedDict):
        answer: Any
    def node(state: State) -> State:
        return {
            "answer": interrupt(
                {"question": "approve?"}, response_schema=response_schema
            )
        }
    graph = (
        StateGraph(State)
        .add_node("node", node)
        .add_edge(START, "node")
        .compile(checkpointer=sync_checkpointer)
    )
    config = {"configurable": {"thread_id": "1"}}
    expected = Interrupt(
        value={"question": "approve?"}, id=AnyStr(), response_schema=expected_schema
    )
    assert list(graph.stream({"answer": None}, config)) == [
        {"__interrupt__": (expected,)}
    ]
    assert graph.get_state(config).tasks[0].interrupts == (expected,)
    assert graph.invoke(Command(resume={"approved": True, "extra": 1}), config) == {
        "answer": expected_answer
    }
@pytest.mark.parametrize("resume_style", ["null", "map"])
 def test_interrupt_response_schema_rejects_invalid_resume(
    sync_checkpointer: BaseCheckpointSaver, resume_style: str
 ) -> None:
    class State(TypedDict):
        answer: Any
    def node(state: State) -> State:
        return {"answer": interrupt("approve?", response_schema=Decision)}
    graph = (
        StateGraph(State)
        .add_node("node", node)
        .add_edge(START, "node")
        .compile(checkpointer=sync_checkpointer)
    )
    config = {"configurable": {"thread_id": "1"}}
    graph.invoke({"answer": None}, config)
    [pending] = graph.get_state(config).tasks[0].interrupts
    def resume(value: dict[str, Any]) -> Command:
        return Command(resume=value if resume_style == "null" else {pending.id: value})
    with pytest.raises(ValidationError, match="approved"):
        graph.invoke(resume({"approved": "nope"}), config)
    assert graph.invoke(resume({"approved": False}), config) == {
        "answer": Decision(approved=False)
    }
@pytest.mark.parametrize("resume_style", ["null", "id_map"])
 def test_interrupt_response_schema_invalid_resume_after_earlier_interrupt(
    sync_checkpointer: BaseCheckpointSaver, resume_style: str
 ) -> None:
    class State(TypedDict):
        answer: Any
    def node(state: State) -> State:
        first = interrupt("first")
        second = interrupt("approve?", response_schema=Decision)
        return {"answer": [first, second]}
    graph = (
        StateGraph(State)
        .add_node("node", node)
        .add_edge(START, "node")
        .compile(checkpointer=sync_checkpointer)
    )
    config = {"configurable": {"thread_id": "1"}}
    graph.invoke({"answer": None}, config)
    graph.invoke(Command(resume="ok"), config)
    [pending] = graph.get_state(config).tasks[0].interrupts
    def resume(value: dict[str, Any]) -> Command:
        return Command(resume=value if resume_style == "null" else {pending.id: value})
    with pytest.raises(ValidationError, match="approved"):
        graph.invoke(resume({"approved": "nope"}), config)
    assert graph.invoke(resume({"approved": True}), config) == {
        "answer": ["ok", Decision(approved=True)]
    }
@@ -5583,6 +5583,7 @@ def test_falsy_return_from_task(sync_checkpointer: BaseCheckpointSaver):
                "interrupts": [
                    {
                        "id": AnyStr(),
                        "response_schema": None,
                        "value": "test",
                    },
                ],
@@ -5627,6 +5628,7 @@ def test_falsy_return_from_task(sync_checkpointer: BaseCheckpointSaver):
                        "interrupts": (
                            {
                                "id": AnyStr(),
                                "response_schema": None,
                                "value": "test",
                            },
                        ),
@@ -295,6 +295,8 @@ class Interrupt(TypedDict):
    """The value associated with the interrupt."""
    id: str
    """The ID of the interrupt. Can be used to resume the interrupt."""
    response_schema: NotRequired[dict[str, Any]]
    """JSON Schema for the value expected when resuming this interrupt, if the graph provided one."""
 class Thread(TypedDict):