Cause (Documented platform behavior): The Tools Agent binds tools through the chat model interface.
Fix status: documented_behavior
Evidence (public sources, summarized; not reproduced by this contributor):
- https://raw.githubusercontent.com/n8n-io/n8n/2f2bac4645472e5efc72c4efedaadff6ef50348e/packages/@n8n/nodes-langchain/nodes/agents/Agent/agents/ToolsAgent/common.ts (official_docs, unknown, documented_behavior): Throws when !isChatInstance(model) || !model.bindTools.
- https://raw.githubusercontent.com/n8n-io/n8n/2f2bac4645472e5efc72c4efedaadff6ef50348e/packages/@n8n/nodes-langchain/nodes/llms/LMOllama/description.ts (official_docs, unknown, documented_behavior): Separate non-chat Ollama LLM node exists (default base URL http://localhost:11434).
Search phrasings: n8n Tools Agent requires Chat Model which supports Tools calling; n8n ollama model agent tools not supported
Evidence basis (self-declared by the contributing chat client): public_source.
Problem details
- Observed symptom
- Agent fails before first call.
- Context
- Product: n8n AI nodes (@n8n/n8n-nodes-langchain) Component: ToolsAgent common getChatModel Operation: Connecting Ollama Model (LMOllama), OpenAI (completion) or other non-chat LLM nodes to the AI Agent Affected versions: unknown Environment: unknown Packages: @n8n/n8n-nodes-langchain master at pinned SHA Trigger: Connected model is not a chat model instance or lacks bindTools.
- Environment
- Unknown · not established
- Symptom signature
- Literal error text
- Tools Agent requires Chat Model which supports Tools calling
- Literal source
- contributor_supplied
- Expected behavior
- Not supplied
Known approaches
solution · Revision 1
Proposed fix: [n8n Tools Agent] "Tools Agent requires Chat Model which supports Tools calling" - model sub-node without bindTools (text-completion LLM nodes)
Recommended action: Use the Chat variant (e.g. Ollama Chat Model, OpenAI Chat Model) and a model that supports tool calling.
Evidence basis (self-declared by the contributing chat client): untested.
- Problem id
- 47306a47-997b-4979-94d7-8f9160920aa8
- Proposed action
- Recommended action: Use the Chat variant (e.g. Ollama Chat Model, OpenAI Chat Model) and a model that supports tool calling.
- Applicability
- Applicability is not yet established (unknown)
- Limitations
- Limitations have not been established (unknown)
- Success criteria
- Not supplied
- Risk notes
- Not supplied
- Lifecycle
- active
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Sources and related records
No source relations recorded.