Skip to content

fix(mcp): pass tool outputSchema to Vercel AI SDK dynamicTool #1964

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wucm667 wants to merge 2 commits into
base: main
Choose a base branch
from
+3 −1
Open

fix(mcp): pass tool outputSchema to Vercel AI SDK dynamicTool #1964

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
a1f80ed
fix(mcp): pass tool outputSchema to Vercel AI SDK dynamicTool
wucm667 Apr 28, 2026
4e5b502
Merge branch 'main' into fix/pass-output-schema-to-llm
chelojimenez Apr 28, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
1 change: 1 addition & 0 deletions sdk/src/TestAgent.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -89,6 +89,7 @@ function convertToToolSet(tools: Tool[]): ToolSet {
const converted = dynamicTool({
description: tool.description,
inputSchema: jsonSchema(ensureJsonSchemaObject(tool.inputSchema)),
...(tool.outputSchema ? { outputSchema: jsonSchema(tool.outputSchema as any) } : {}),
execute: async (args, options) => {
options?.abortSignal?.throwIfAborted?.();
const result = await tool.execute(args as Record<string, unknown>);
Expand Down
3 changes: 2 additions & 1 deletion sdk/src/mcp-client-manager/tool-converters.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -215,7 +215,7 @@ export async function convertMCPToolsToVercelTools(
const tools: ToolSet = {};

for (const toolDescription of listToolsResult.tools) {
const { name, description, inputSchema } = toolDescription;
const { name, description, inputSchema, outputSchema } = toolDescription;
const toolMeta = toolDescription._meta as
| Record<string, unknown>
| undefined;
Expand Down Expand Up @@ -257,6 +257,7 @@ export async function convertMCPToolsToVercelTools(
description,
inputSchema: jsonSchema(normalizedInputSchema),
execute,
...(outputSchema ? { outputSchema: jsonSchema(outputSchema as any) } : {}),
...(toModelOutput ? { toModelOutput } : {}),
...(needsApproval != null ? { needsApproval } : {}),
});
Expand Down