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🧩 fix: Human Message Content Handling for Legacy Content (#8525)

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* wip: first pass content strings

* 📦 chore: update @langchain/core to v0.3.62 for data-provider dev dep.

* 📦 chore: bump @langchain/core to v0.3.62 for api dep.

* 📦 chore: move @langchain/core to peerDependencies in package.json and package-lock.json

* fix: update formatContentStrings to create HumanMessage directly from formatted content

* chore: import order
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Danny Avila 2025-07-17 18:34:24 -04:00 • committed by GitHub
parent cd9c578907
commit 445e9eae85
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10 changed files with 398 additions and 39 deletions
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32
api/app/clients/prompts/formatMessages.js
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@ -237,41 +237,9 @@ const formatAgentMessages = (payload) => {
return messages;
};
/**
* Formats an array of messages for LangChain, making sure all content fields are strings
* @param {Array<(HumanMessage|AIMessage|SystemMessage|ToolMessage)>} payload - The array of messages to format.
* @returns {Array<(HumanMessage|AIMessage|SystemMessage|ToolMessage)>} - The array of formatted LangChain messages, including ToolMessages for tool calls.
*/
const formatContentStrings = (payload) => {
const messages = [];
for (const message of payload) {
if (typeof message.content === 'string') {
continue;
}
if (!Array.isArray(message.content)) {
continue;
}
// Reduce text types to a single string, ignore all other types
const content = message.content.reduce((acc, curr) => {
if (curr.type === ContentTypes.TEXT) {
return `${acc}${curr[ContentTypes.TEXT]}\n`;
}
return acc;
}, '');
message.content = content.trim();
}
return messages;
};
module.exports = {
formatMessage,
formatFromLangChain,
formatAgentMessages,
formatContentStrings,
formatLangChainMessages,
};