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fix: silence stdio stderr by default #211

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fix: silence stdio stderr by default #211

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68689e3
fix: silence stdio stderr by default
haosenwang1018 Mar 19, 2026
7d550f8
fix(client): add pagination support for listTools to prevent missing …
haosenwang1018 Mar 21, 2026
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43 changes: 20 additions & 23 deletions src/client.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -243,15 +243,12 @@ export async function connectToServer(
} else {
transport = createStdioTransport(config);

// Capture stderr for debugging - attach BEFORE connect
// Always stream stderr immediately so auth prompts are visible
// Capture stderr before connect so failed startups can surface
// helpful diagnostics without streaming server noise by default.
const stderrStream = transport.stderr;
if (stderrStream) {
stderrStream.on('data', (chunk: Buffer) => {
const text = chunk.toString();
stderrChunks.push(text);
// Always stream stderr immediately so users can see auth prompts
process.stderr.write(`[${serverName}] ${text}`);
stderrChunks.push(chunk.toString());
});
}
}
Expand All @@ -268,16 +265,6 @@ export async function connectToServer(
throw error;
}

// For successful connections, forward stderr to console
if (!isHttpServer(config)) {
const stderrStream = (transport as StdioClientTransport).stderr;
if (stderrStream) {
stderrStream.on('data', (chunk: Buffer) => {
process.stderr.write(chunk);
});
}
}

return {
client,
close: async () => {
Expand Down Expand Up @@ -328,16 +315,26 @@ function createStdioTransport(config: StdioServerConfig): StdioClientTransport {
}

/**
* List all tools from a connected client with retry logic
* List all tools from a connected client with retry logic and pagination support
*/
export async function listTools(client: Client): Promise<ToolInfo[]> {
return withRetry(async () => {
const result = await client.listTools();
return result.tools.map((tool: Tool) => ({
name: tool.name,
description: tool.description,
inputSchema: tool.inputSchema as Record<string, unknown>,
}));
const allTools: ToolInfo[] = [];
let cursor: string | undefined;

do {
const result = await client.listTools(cursor ? { cursor } : undefined);
allTools.push(
...result.tools.map((tool: Tool) => ({
name: tool.name,
description: tool.description,
inputSchema: tool.inputSchema as Record<string, unknown>,
})),
);
cursor = result.nextCursor as string | undefined;
} while (cursor);

return allTools;
}, 'list tools');
}

Expand Down