langchain-ai/langgraph
1
0
Fork 0
mirror of https://github.com/langchain-ai/langgraph.git synced 2026-07-15 12:35:43 -04:00
Code Issues 314 Packages Projects Releases 17 Wiki Activity

langgraph_api mcp.py don't have correct description #774

New Issue
Closed
opened 2026-02-20 17:41:41 -05:00 by yindo · 3 comments
yindo commented 2026-02-20 17:41:41 -05:00
Owner
Copy Link
Copy Source

Originally created by @klsdjft on GitHub (Jul 7, 2025).

Originally assigned to: @jdrogers940 on GitHub.

Checked other resources

  • This is a bug, not a usage question. For questions, please use GitHub Discussions.
  • I added a clear and detailed title that summarizes the issue.
  • I read what a minimal reproducible example is (https://stackoverflow.com/help/minimal-reproducible-example).
  • I included a self-contained, minimal example that demonstrates the issue INCLUDING all the relevant imports. The code run AS IS to reproduce the issue.

Example Code

/usr/local/lib/python3.11/site-packages/langgraph_api/api/mcp.py

for assistant in assistants:
        id_ = assistant.get("assistant_id")
        name = assistant["name"]

        if name in seen_names:
            await logger.awarning(f"Duplicate assistant name found {name}", name=name)
        else:
            seen_names.add(name)

        schemas = await client.assistants.get_schemas(id_, headers=request.headers)
        tools.append(
            {
                "name": name,
                "inputSchema": schemas.get("input_schema", {}),
                "description": "",
            },
        )

Error Message and Stack Trace (if applicable)

Mcp Client can only get emptry description.

Description

langgraph server cann't load mcp description because that code.

tools.append(
{
"name": name,
"inputSchema": schemas.get("input_schema", {}),
"description": "",
},
)

I am not find langgraph_api github, so i can't commit a PR. Hope you guys can fix it.

Image

System Info

System Information

OS: Linux
OS Version: #1 SMP PREEMPT_DYNAMIC Fri Nov 29 17:24:06 UTC 2024
Python Version: 3.11.4 (main, Jun 13 2023, 15:34:37) [GCC 8.3.0]

Package Information

langchain_core: 0.3.68
langchain: 0.3.15
langchain_community: 0.3.15
langsmith: 0.4.4
langchain_anthropic: 0.3.3
langchain_fireworks: 0.2.6
langchain_groq: 0.3.1
langchain_mcp_adapters: 0.1.8
langchain_openai: 0.3.1
langchain_text_splitters: 0.3.5
langgraph_api: 0.2.78
langgraph_cli: 0.3.3
langgraph_codeact: 0.1.0
langgraph_license: Installed. No version info available.
langgraph_runtime: Installed. No version info available.
langgraph_runtime_inmem: 0.3.4
langgraph_sdk: 0.1.72

Optional packages not installed

langserve

Other Dependencies

aiohttp: 3.9.1
anthropic: 0.43.1
async-timeout: 4.0.3
blockbuster<2.0.0,>=1.5.24: Installed. No version info available.
click>=8.1.7: Installed. No version info available.
cloudpickle>=3.0.0: Installed. No version info available.
cryptography<45.0,>=42.0.0: Installed. No version info available.
dataclasses-json: 0.6.7
defusedxml: 0.7.1
fireworks-ai: 0.15.11
groq<1,>=0.4.1: Installed. No version info available.
httpx: 0.28.1
httpx-sse: 0.4.0
httpx>=0.25.0: Installed. No version info available.
httpx>=0.25.2: Installed. No version info available.
jsonpatch<2.0,>=1.33: Installed. No version info available.
jsonschema-rs<0.30,>=0.20.0: Installed. No version info available.
langchain-core<0.4,>=0.3.36: Installed. No version info available.
langchain-core<1.0.0,>=0.3.47: Installed. No version info available.
langchain-core>=0.3.64: Installed. No version info available.
langgraph-api>=0.1.20;: Installed. No version info available.
langgraph-checkpoint>=2.0.23: Installed. No version info available.
langgraph-checkpoint>=2.0.25: Installed. No version info available.
langgraph-runtime-inmem<0.4,>=0.3.0: Installed. No version info available.
langgraph-runtime-inmem>=0.0.8;: Installed. No version info available.
langgraph-sdk>=0.1.0;: Installed. No version info available.
langgraph-sdk>=0.1.71: Installed. No version info available.
langgraph<0.4.0,>=0.3.5: Installed. No version info available.
langgraph>=0.2: Installed. No version info available.
langgraph>=0.3.27: Installed. No version info available.
langsmith-pyo3: Installed. No version info available.
langsmith>=0.3.45: Installed. No version info available.
mcp>=1.9.2: Installed. No version info available.
numpy: 1.26.3
openai: 1.59.9
openai-agents: Installed. No version info available.
opentelemetry-api: 1.22.0
opentelemetry-exporter-otlp-proto-http: Installed. No version info available.
opentelemetry-sdk: 1.22.0
orjson: 3.10.18
orjson>=3.10.1: Installed. No version info available.
orjson>=3.9.7: Installed. No version info available.
packaging: 24.2
packaging<25,>=23.2: Installed. No version info available.
pydantic: 2.11.7
pydantic-settings: 2.7.1
pydantic>=2.7.4: Installed. No version info available.
pyjwt>=2.9.0: Installed. No version info available.
pytest: Installed. No version info available.
python-dotenv>=0.8.0;: Installed. No version info available.
PyYAML: 6.0.2
PyYAML>=5.3: Installed. No version info available.
requests: 2.32.4
requests-toolbelt: 1.0.0
rich: 13.9.4
SQLAlchemy: 2.0.25
sse-starlette<2.2.0,>=2.1.0: Installed. No version info available.
sse-starlette>=2: Installed. No version info available.
starlette>=0.37: Installed. No version info available.
starlette>=0.38.6: Installed. No version info available.
structlog<26,>=24.1.0: Installed. No version info available.
structlog>23: Installed. No version info available.
tenacity: 9.1.2
tenacity!=8.4.0,<10.0.0,>=8.1.0: Installed. No version info available.
tenacity>=8.0.0: Installed. No version info available.
tiktoken: 0.7.0
truststore>=0.1: Installed. No version info available.
typing-extensions>=4.14.0: Installed. No version info available.
typing-extensions>=4.7: Installed. No version info available.
uvicorn>=0.26.0: Installed. No version info available.
watchfiles>=0.13: Installed. No version info available.
zstandard: 0.23.0

Originally created by @klsdjft on GitHub (Jul 7, 2025). Originally assigned to: @jdrogers940 on GitHub. ### Checked other resources - [x] This is a bug, not a usage question. For questions, please use GitHub Discussions. - [x] I added a clear and detailed title that summarizes the issue. - [x] I read what a minimal reproducible example is (https://stackoverflow.com/help/minimal-reproducible-example). - [x] I included a self-contained, minimal example that demonstrates the issue INCLUDING all the relevant imports. The code run AS IS to reproduce the issue. ### Example Code ```python /usr/local/lib/python3.11/site-packages/langgraph_api/api/mcp.py for assistant in assistants: id_ = assistant.get("assistant_id") name = assistant["name"] if name in seen_names: await logger.awarning(f"Duplicate assistant name found {name}", name=name) else: seen_names.add(name) schemas = await client.assistants.get_schemas(id_, headers=request.headers) tools.append( { "name": name, "inputSchema": schemas.get("input_schema", {}), "description": "", }, ) ``` ### Error Message and Stack Trace (if applicable) ```shell Mcp Client can only get emptry description. ``` ### Description langgraph server cann't load mcp description because that code. > tools.append( { "name": name, "inputSchema": schemas.get("input_schema", {}), "description": "", }, ) I am not find langgraph_api github, so i can't commit a PR. Hope you guys can fix it. <img width="1108" height="837" alt="Image" src="https://github.com/user-attachments/assets/efca4da3-1d2b-487f-b439-57972779a6cf" /> ### System Info System Information ------------------ > OS: Linux > OS Version: #1 SMP PREEMPT_DYNAMIC Fri Nov 29 17:24:06 UTC 2024 > Python Version: 3.11.4 (main, Jun 13 2023, 15:34:37) [GCC 8.3.0] Package Information ------------------- > langchain_core: 0.3.68 > langchain: 0.3.15 > langchain_community: 0.3.15 > langsmith: 0.4.4 > langchain_anthropic: 0.3.3 > langchain_fireworks: 0.2.6 > langchain_groq: 0.3.1 > langchain_mcp_adapters: 0.1.8 > langchain_openai: 0.3.1 > langchain_text_splitters: 0.3.5 > langgraph_api: 0.2.78 > langgraph_cli: 0.3.3 > langgraph_codeact: 0.1.0 > langgraph_license: Installed. No version info available. > langgraph_runtime: Installed. No version info available. > langgraph_runtime_inmem: 0.3.4 > langgraph_sdk: 0.1.72 Optional packages not installed ------------------------------- > langserve Other Dependencies ------------------ > aiohttp: 3.9.1 > anthropic: 0.43.1 > async-timeout: 4.0.3 > blockbuster<2.0.0,>=1.5.24: Installed. No version info available. > click>=8.1.7: Installed. No version info available. > cloudpickle>=3.0.0: Installed. No version info available. > cryptography<45.0,>=42.0.0: Installed. No version info available. > dataclasses-json: 0.6.7 > defusedxml: 0.7.1 > fireworks-ai: 0.15.11 > groq<1,>=0.4.1: Installed. No version info available. > httpx: 0.28.1 > httpx-sse: 0.4.0 > httpx>=0.25.0: Installed. No version info available. > httpx>=0.25.2: Installed. No version info available. > jsonpatch<2.0,>=1.33: Installed. No version info available. > jsonschema-rs<0.30,>=0.20.0: Installed. No version info available. > langchain-core<0.4,>=0.3.36: Installed. No version info available. > langchain-core<1.0.0,>=0.3.47: Installed. No version info available. > langchain-core>=0.3.64: Installed. No version info available. > langgraph-api>=0.1.20;: Installed. No version info available. > langgraph-checkpoint>=2.0.23: Installed. No version info available. > langgraph-checkpoint>=2.0.25: Installed. No version info available. > langgraph-runtime-inmem<0.4,>=0.3.0: Installed. No version info available. > langgraph-runtime-inmem>=0.0.8;: Installed. No version info available. > langgraph-sdk>=0.1.0;: Installed. No version info available. > langgraph-sdk>=0.1.71: Installed. No version info available. > langgraph<0.4.0,>=0.3.5: Installed. No version info available. > langgraph>=0.2: Installed. No version info available. > langgraph>=0.3.27: Installed. No version info available. > langsmith-pyo3: Installed. No version info available. > langsmith>=0.3.45: Installed. No version info available. > mcp>=1.9.2: Installed. No version info available. > numpy: 1.26.3 > openai: 1.59.9 > openai-agents: Installed. No version info available. > opentelemetry-api: 1.22.0 > opentelemetry-exporter-otlp-proto-http: Installed. No version info available. > opentelemetry-sdk: 1.22.0 > orjson: 3.10.18 > orjson>=3.10.1: Installed. No version info available. > orjson>=3.9.7: Installed. No version info available. > packaging: 24.2 > packaging<25,>=23.2: Installed. No version info available. > pydantic: 2.11.7 > pydantic-settings: 2.7.1 > pydantic>=2.7.4: Installed. No version info available. > pyjwt>=2.9.0: Installed. No version info available. > pytest: Installed. No version info available. > python-dotenv>=0.8.0;: Installed. No version info available. > PyYAML: 6.0.2 > PyYAML>=5.3: Installed. No version info available. > requests: 2.32.4 > requests-toolbelt: 1.0.0 > rich: 13.9.4 > SQLAlchemy: 2.0.25 > sse-starlette<2.2.0,>=2.1.0: Installed. No version info available. > sse-starlette>=2: Installed. No version info available. > starlette>=0.37: Installed. No version info available. > starlette>=0.38.6: Installed. No version info available. > structlog<26,>=24.1.0: Installed. No version info available. > structlog>23: Installed. No version info available. > tenacity: 9.1.2 > tenacity!=8.4.0,<10.0.0,>=8.1.0: Installed. No version info available. > tenacity>=8.0.0: Installed. No version info available. > tiktoken: 0.7.0 > truststore>=0.1: Installed. No version info available. > typing-extensions>=4.14.0: Installed. No version info available. > typing-extensions>=4.7: Installed. No version info available. > uvicorn>=0.26.0: Installed. No version info available. > watchfiles>=0.13: Installed. No version info available. > zstandard: 0.23.0
yindo added the bug label 2026-02-20 17:41:41 -05:00
yindo closed this issue 2026-02-20 17:41:41 -05:00
yindo commented 2026-02-20 17:41:41 -05:00
Author
Owner
Copy Link
Copy Source

@klsdjft commented on GitHub (Jul 7, 2025):

To fix this, add line in mcp.py:

description = assistant.get("description", "")
tools.append(
{
"name": name,
"inputSchema": schemas.get("input_schema", {}),
"description": description,
},
)

@klsdjft commented on GitHub (Jul 7, 2025): To fix this, add line in mcp.py: > description = assistant.get("description", "") tools.append( { "name": name, "inputSchema": schemas.get("input_schema", {}), "description": description, }, )
yindo commented 2026-02-20 17:41:41 -05:00
Author
Owner
Copy Link
Copy Source

@eyurtsev commented on GitHub (Jul 7, 2025):

cc @jdrogers940

@eyurtsev commented on GitHub (Jul 7, 2025): cc @jdrogers940
yindo commented 2026-02-20 17:41:41 -05:00
Author
Owner
Copy Link
Copy Source

@jdrogers940 commented on GitHub (Jul 11, 2025):

Thanks for raising this! Should be resolved in langgraph-api v0.2.86.

@jdrogers940 commented on GitHub (Jul 11, 2025): Thanks for raising this! Should be resolved in `langgraph-api v0.2.86`.
Sign in to join this conversation.
No Branch/Tag Specified
Branches Tags
Labels
Clear labels
agents
awaiting author revision
bug
change
chat models
checkpointer
ci
code quality
code quality
dependencies
documentation
drawing
duplicate
enhancement
good first issue
help wanted
invalid
maintainer
meta
missing information
not maintained by langchain
open-swe-auto
open-swe-max
open-swe-max-auto
pending
performance
pull-request
Mirrored from GitHub Pull Request
 question
requires design
sdk
server
stale
studio
tests
type checking
usage question
v0.5
v1.1
No Label bug
Milestone
No items
No Milestone
Projects
Clear projects
No project
Assignees
Clear assignees
yindo
No Assignees
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: langchain-ai/langgraph#774
Delete Branch "%!s()"

Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?