Elon Musk
@elonmusk
Grok Build
X Freeze@XFreeze· Sep 16, 2026Grok Build just got a pretty substantial upgrade across MCP, memory, long-running sessions, and overall agent reliability
MCP tools can now return structured JSON, cancelled tool calls actually tell the server to stop working, memory can be managed directly from the /memory
04:44 AM · September 16, 2026 · 3.2M views
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