---
type: "post"
id: "nr-a153-cursor-self-hosted-machines-runtime-boundary"
slug: "cursor-self-hosted-machines-runtime-boundary"
title: "Cursor Moves Agent Execution Into Customer-Managed Machines"
description: "Cursor's self-hosted machines separate the cloud agent loop from the infrastructure where tools execute."
observed_at: "2026-09-05T20:00:00+03:00"
record_date: "2026-09-05"
date_kind: "observed_at"
why_it_matters: "The immediate implication is that agent security moves from a simple cloud-versus-local choice into a split-control architecture. The evidence boundary is Cursor's product post; it describes the runtime design but does not prove customer deployment outcomes or incident rates. Watch whether self-hosted agent pools expose enough logging, transcript control, and data-retention controls for regulated engineering teams."
novelty: "new"
verification_level: "source-inspected"
signal_type: "field_note"
source_platform: "cursor.com"
topics: ["coding-agents","runtime","infrastructure","security"]
entities: ["Cursor","Anysphere"]
related_patterns: ["agent-runtime-boundaries"]
source_url: "https://cursor.com/blog/self-hosted-machines"
source_urls: ["https://cursor.com/blog/self-hosted-machines"]
basket: {"id":"a153bc19-d6a9-42fb-b661-d17c3d8775c7","revision":1,"review_ref":"A153-021","cluster_id":"b022460e-2711-4738-ae3c-25fda8e155ae","mention_count":6,"source_lanes":["chatgpt_batch","claude_batch","x_api"]}
schema_version: "newruntime-agent-readable-v0.2"
stable_id: "post:cursor-self-hosted-machines-runtime-boundary"
retrieval_nugget: "Cursor's self-hosted machines separate the cloud agent loop from the infrastructure where tools execute. Cursor's self-hosted machines turn cloud coding agents into a split-runtime system. The source says agents are started and managed from Cursor, while execution can run on dynamically scheduled machines inside a customer's own network, close to internal services, source control, custom hardware, operating systems, and build"
status: "published"
visuals: [{"role":"hero","src":"/images/drip/cursor-self-hosted-machines-runtime-boundary/02-cursor-self-hosted-agent-machines.webp","alt":"Whiteboard architecture diagram showing Cursor managing the agent loop while tool execution happens on customer-managed machines through outbound workers.","caption":"New Runtime synthesis: Cursor moves execution into managed customer infrastructure while keeping the agent loop in Cursor."}]
editorial_provenance: {"schema_version":"newruntime-editorial-copy-v1","content_status":"source_grounded_final","final_copy_sha256":"sha256:72b5f4aa0ec7eb2c9e7486813dcfa1fd40172029e47add5bb9e1793392ee0fcb","reviewed_at":"2026-09-05T20:00:00+03:00","source_evidence_count":1,"verified_claim_count":2,"site_analysis_schema_version":"newruntime-site-analysis-v1","site_object_kind":"field_note","observed_fact_count":2,"implication_count":1,"watch_condition_count":1,"related_record_count":0}
analysis: {"schema_version":"newruntime-site-analysis-v1","object_kind":"field_note","thesis":"Cursor's self-hosted machines turn cloud coding agents into a split-runtime system.","observed_facts":[{"text":"Cursor says self-hosted machines let cloud agents execute on dynamically scheduled machines inside a customer's network.","source_urls":["https://cursor.com/blog/self-hosted-machines"]},{"text":"Cursor says the worker opens an outbound HTTPS connection and Cursor does not initiate inbound connections into the customer's network.","source_urls":["https://cursor.com/blog/self-hosted-machines"]}],"mechanism":"The mechanism is an outbound worker bridge between customer infrastructure and Cursor's cloud agent loop.","why_now":"Cursor also says it does not initiate inbound connections into the customer's network.","implications":["The immediate implication is that agent security moves from a simple cloud-versus-local choice into a split-control architecture."],"evidence_boundary":"The evidence boundary is Cursor's product post; it describes the runtime design but does not prove customer deployment outcomes or incident rates.","watch_conditions":["Watch whether self-hosted agent pools expose enough logging, transcript control, and data-retention controls for regulated engineering teams."],"related_records":[],"new_branch_reason":"This is a concrete new runtime-boundary branch for cloud agents that execute inside customer-controlled environments."}
routes: {"html":"https://newruntime.com/posts/cursor-self-hosted-machines-runtime-boundary/","markdown":"https://newruntime.com/posts/cursor-self-hosted-machines-runtime-boundary.md","json":"https://newruntime.com/posts/cursor-self-hosted-machines-runtime-boundary.json"}
---

# Cursor Moves Agent Execution Into Customer-Managed Machines

## Retrieval answer

Cursor's self-hosted machines separate the cloud agent loop from the infrastructure where tools execute. Cursor's self-hosted machines turn cloud coding agents into a split-runtime system. The source says agents are started and managed from Cursor, while execution can run on dynamically scheduled machines inside a customer's own network, close to internal services, source control, custom hardware, operating systems, and build

Cursor's self-hosted machines turn cloud coding agents into a split-runtime system. The source says agents are started and managed from Cursor, while execution can run on dynamically scheduled machines inside a customer's own network, close to internal services, source control, custom hardware, operating systems, and build pipelines.

The mechanism is an outbound worker bridge between customer infrastructure and Cursor's cloud agent loop. Cursor says the worker opens a long-lived outbound HTTPS connection, receives tool calls from the agent harness, runs commands against the local working copy, and returns results for the next inference step. Cursor also says it does not initiate inbound connections into the customer's network.

The immediate implication is that agent security moves from a simple cloud-versus-local choice into a split-control architecture. The evidence boundary is Cursor's product post; it describes the runtime design but does not prove customer deployment outcomes or incident rates. Watch whether self-hosted agent pools expose enough logging, transcript control, and data-retention controls for regulated engineering teams.