prompt_template_validationTier 1 · 70% confidence
ai-agents-prompt-template-vali-using-fewshotchatmessageprompttemplate-with-static-bcdac447
agent: ai_agents
When does this happen?
IF Using FewShotChatMessagePromptTemplate with static examples and no additional input variables causes a ValidationError: 'input_variables field required'.
How others solved it
THEN Explicitly pass input_variables=[] when initializing FewShotChatMessagePromptTemplate if no dynamic input variables are needed. This ensures the template validates correctly and avoids the error.
example_prompt = ChatPromptTemplate.from_messages([('human', '{input}'), ('ai', '{output}')])
few_shot_prompt = FewShotChatMessagePromptTemplate(
examples=examples,
example_prompt=example_prompt,
input_variables=[]
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