docs: add new entries for AI Tool Calling and LangChain Forum discussion

- Created a new journal entry for September 3, 2025, detailing insights on AI Tool Calling within the LangChain ecosystem.
- Added links to relevant resources, including the LangChain changelog and LangGraph documentation on tool calling.
- Introduced a new entry summarizing a discussion from the LangChain Forum regarding issues with reference outputs in datasets.

Author: codekiln

journals/2025_09_03.md

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+## [[LangChain/Ecosystem]]
+	- [[AI/Tool/Calling]]
+		- [LangChain - Changelog | Dynamic tool calling in LangGraph agents](https://changelog.langchain.com/announcements/dynamic-tool-calling-in-langgraph-agents)
+			- [[langgraph/Docs/How To/Tool Calling]]
+				-

pages/AI___Tool___Calling.md

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+tags:: [[Term]]
+
+- # AI Tool Calling
+	- Inside the [[LangChain/Ecosystem]]
+		- [Tools | 🦜️🔗 LangChain](https://python.langchain.com/docs/concepts/tools/)
+		- [LangGraph - Call tools](https://langchain-ai.github.io/langgraph/how-tos/tool-calling/)

pages/LangChain___Forum___25___09___Trace added to dataset from prompt playground lacks a reference output.md

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+created-by:: [[Person/codekiln]]
+
+- # [Trace added to dataset from prompt playground lacks a reference output - Product Help / LangSmith - LangChain Forum](https://forum.langchain.com/t/trace-added-to-dataset-from-prompt-playground-lacks-a-reference-output/1439)
+	- When I try to add a trace from the prompt playground to a dataset, the Reference Output is not filled in with the output from the prompt playground. Furthermore, when I go to try to manually add a reference output, hitting submit does not save the output. The dataset does not have a schema, so it’s not a validation error that’s preventing it from being saved as far as I know.
+	- ## [](https://forum.langchain.com/t/trace-added-to-dataset-from-prompt-playground-lacks-a-reference-output/1439#p-2417-expected-behavior-1) Expected Behavior
+	  
+	  Adding a trace from any project to a dataset adds the output as the reference output for that example.
+	- ## [](https://forum.langchain.com/t/trace-added-to-dataset-from-prompt-playground-lacks-a-reference-output/1439#p-2417-actual-behavior-2) Actual Behavior
+	  
+	  Adding a trace from the playground project to a dataset does not add the output to the example at all. The resulting example added to the dataset is missing a reference output.

pages/langgraph___Docs___How To___Tool Calling.md

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+# [Call tools](https://langchain-ai.github.io/langgraph/how-tos/tool-calling/)
+	- ## [Dynamically select tools](https://langchain-ai.github.io/langgraph/how-tos/tool-calling/#dynamically-select-tools) - in langgraph 0.6
+		- Configure tool availability **at runtime** based on context
+		-