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

[PR #3840] docs: Minor change in the sql agent notebook #3498

New Issue
Closed
opened 2026-02-20 17:48:42 -05:00 by yindo · 0 comments
yindo commented 2026-02-20 17:48:42 -05:00
Owner
Copy Link
Copy Source

Original Pull Request: https://github.com/langchain-ai/langgraph/pull/3840

State: closed
Merged: No

Description:

This pull request addresses an error encountered when following the SQL agent tutorial cookbook using the Gemini LLM. Specifically, the notebook throws a ChatGoogleGenerativeAIError with the message:

ChatGoogleGenerativeAIError: Invalid argument provided to Gemini: 400 allowed_function_names should be a subset of the provided function_declarations names. Found invalid function names: required

Root Cause:

This error originates from the "Define tools for the agent" cell, where the tool_choice parameter in ChatGoogleGenerativeAI().bind_tools() is set to "required".

Solution:

This PR modifies the problematic cell by changing the tool_choice parameter from "required" to True. The agent worked well with no errors.

Affected Code:

# Before (Error-prone)
query_check = query_check_prompt | ChatGoogleGenerativeAI(model="gemini-2.0-flash", temperature=0).bind_tools(
    [db_query_tool], tool_choice="required"
)

# After (Corrected)
query_check = query_check_prompt | ChatGoogleGenerativeAI(model="gemini-2.0-flash", temperature=0).bind_tools(
    [db_query_tool], tool_choice=True
)

Reference

https://langchain-ai.github.io/langgraph/tutorials/sql-agent/#define-tools-for-the-agent

**Original Pull Request:** https://github.com/langchain-ai/langgraph/pull/3840 **State:** closed **Merged:** No --- **Description:** This pull request addresses an error encountered when following the SQL agent tutorial cookbook using the Gemini LLM. Specifically, the notebook throws a `ChatGoogleGenerativeAIError` with the message: ` ChatGoogleGenerativeAIError: Invalid argument provided to Gemini: 400 allowed_function_names should be a subset of the provided function_declarations names. Found invalid function names: required ` **Root Cause:** This error originates from the "Define tools for the agent" cell, where the `tool_choice` parameter in `ChatGoogleGenerativeAI().bind_tools()` is set to `"required"`. **Solution:** This PR modifies the problematic cell by changing the `tool_choice` parameter from `"required"` to `True`. The agent worked well with no errors. **Affected Code:** ```python # Before (Error-prone) query_check = query_check_prompt | ChatGoogleGenerativeAI(model="gemini-2.0-flash", temperature=0).bind_tools( [db_query_tool], tool_choice="required" ) # After (Corrected) query_check = query_check_prompt | ChatGoogleGenerativeAI(model="gemini-2.0-flash", temperature=0).bind_tools( [db_query_tool], tool_choice=True ) ``` **Reference** [https://langchain-ai.github.io/langgraph/tutorials/sql-agent/#define-tools-for-the-agent](url)
yindo added the pull-request label 2026-02-20 17:48:42 -05:00
yindo closed this issue 2026-02-20 17:48:42 -05:00
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 pull-request
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#3498
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?