layer:8-execution

{
  "id": "layer:8-execution",
  "_kind": "Layer",
  "_file": "stack-layers/layers/layer-8-execution.yaml",
  "_cluster": "stack-layers",
  "attributes": {
    "displayName": "Execution",
    "position": 8,
    "path": "surfacing",
    "scope": "Invocation environment for agent-driven tools, commands, and side effects.",
    "summary": "The execution layer hosts agent-driven tool calls and shell commands:\nlocal process, Docker container, SSH remote, Kubernetes pod, cloud\nfunction, direct host, or service-side executor. Execution posture includes\nprocess lifecycle, signal propagation, resource limits, isolation, network\npolicy, filesystem access, GPU access, and concrete runtime substrate.\nRealized by `Execution` nodes.\n",
    "responsibilities": [
      "Start, stream, interrupt, and stop tool/shell/process execution.",
      "Own process lifecycle, resource limits, environment variables, and mounts.",
      "Route side effects to local, remote, container, or hosted executors."
    ],
    "examples": [
      "Local shell, Docker, SSH remote, Kubernetes pod, GitHub Actions runner.",
      "Browser automation worker, notebook/kernel executor, cloud function.",
      "LangGraph tool node executing inside a host application runtime."
    ],
    "fitNotes": "Frameworks often delegate execution to user-defined tools. Hosted agent\nproducts may make this layer invisible but still need it for auditing and\npolicy mapping.\n"
  },
  "outgoingEdges": [],
  "incomingEdges": [
    {
      "from": "mux:agent-launch-mux",
      "to": "layer:8-execution",
      "kind": "bridges_protocol_type",
      "attributes": {}
    },
    {
      "from": "execution:local-host",
      "to": "layer:8-execution",
      "kind": "realizes",
      "attributes": {}
    },
    {
      "from": "execution:docker-default",
      "to": "layer:8-execution",
      "kind": "realizes",
      "attributes": {}
    },
    {
      "from": "execution:codespaces-container",
      "to": "layer:8-execution",
      "kind": "realizes",
      "attributes": {}
    },
    {
      "from": "execution:k8s-job",
      "to": "layer:8-execution",
      "kind": "realizes",
      "attributes": {}
    },
    {
      "from": "execution:firecracker-microvm",
      "to": "layer:8-execution",
      "kind": "realizes",
      "attributes": {}
    },
    {
      "from": "page:agent-generate-universal-agentic-stack",
      "to": "layer:8-execution",
      "kind": "documents"
    },
    {
      "from": "page:agent-generate-universal-agentic-stack-layers",
      "to": "layer:8-execution",
      "kind": "documents"
    },
    {
      "from": "page:agent-generate-universal-agentic-stack-source-map",
      "to": "layer:8-execution",
      "kind": "documents"
    }
  ]
}