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feat(cli): display real-time tool execution updates

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Handle tool_execution_update events in CLI output to show live progress
while commands are running. Shows the last 60 characters of output on
a single line that updates in place.

This completes the real-time streaming feature added to exec tool.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Jiayuan 2026-01-31 18:40:40 +08:00
parent 14bcebee2a
commit aaf0522303
1 changed files with 11 additions and 0 deletions
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11
src/agent/output.ts
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@ -120,7 +120,18 @@ export function createAgentOutput(params: {
case "tool_execution_start":
params.stderr.write(`${formatToolLine(event.toolName, event.args)}\n`);
break;
case "tool_execution_update": {
// Show real-time output updates (e.g., from exec tool)
const updateText = extractText(event.partialResult);
if (updateText) {
// Clear line and show latest tail output
params.stderr.write(`\r\x1b[K ↳ ${updateText.slice(-60).replace(/\n/g, " ")}`);
}
break;
}
case "tool_execution_end":
// Clear any update line from tool_execution_update
params.stderr.write("\r\x1b[K");
if (event.isError) {
const errorText = extractText(event.result) || "Tool failed";
params.stderr.write(`• Tool error (${toolDisplayName(event.toolName)}): ${errorText}\n`);