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Create machine pool

pools_create

Creates a machine pool for an organization by setting the provider, auth secret, machine defaults, and CPU, memory, and machine-count limits used to provision provider-backed machines.

Instructions

Creates a machine pool in the organization. The body carries the pool name, the provider (agent37, arker, blaxel, boxd, createos, daytona, e2b, freestyle, modal, superserve, tenki, or unikraft), the provider auth secret, default machine settings, and the per-machine and total CPU, memory, and machine-count limits the provider supports; the required fields depend on the provider. See the createMachinePool operation in the Omnara API reference at https://docs.omnara.com/api-reference for the full request schema.

Input Schema

NameRequiredDescriptionDefault
bodyYesPool definition. name, provider, provider_auth_secret_id, default_machine_provider_options, and max_total_machines are always required; which default machine size and CPU and memory limits are required depends on the provider; Blaxel pools reject CPU fields.
orgIDYesOrganization ID (org_...).

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changedv0.1.5
    • changedInput schema / properties / body / allOf
      Previous value: -[
-  {
-    "$ref": "#/$defs/CreateMachinePoolRequestBase"
-  },
-  {
-    "oneOf": [
-      {
-        "properties": {
-          "default_machine_cpu": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "default_machine_memory_mb": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "max_machine_cpu": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "max_machine_memory_mb": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "max_total_cpu": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "max_total_memory_mb": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "provider": {
-            "enum": [
-              "arker",
-              "freestyle",
-              "modal",
-              "tenki",
-              "unikraft"
-            ],
-            "type": "string"
-          }
-        },
-        "required": [
-          "provider",
-          "default_machine_cpu",
-          "default_machine_memory_mb",
-          "max_total_cpu",
-          "max_total_memory_mb",
-          "max_machine_cpu",
-          "max_machine_memory_mb"
-        ],
-        "type": "object"
-      },
-      {
-        "properties": {
-          "max_machine_cpu": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "max_machine_memory_mb": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "max_total_cpu": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "max_total_memory_mb": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "provider": {
-            "enum": [
-              "boxd",
-              "createos",
-              "daytona",
-              "e2b",
-              "superserve"
-            ],
-            "type": "string"
-          }
-        },
-        "required": [
-          "provider",
-          "max_total_cpu",
-          "max_total_memory_mb",
-          "max_machine_cpu",
-          "max_machine_memory_mb"
-        ],
-        "type": "object"
-      },
-      {
-        "not": {
-          "anyOf": [
-            {
-              "required": [
-                "default_machine_cpu"
-              ]
-            },
-            {
-              "required": [
-                "max_total_cpu"
-              ]
-            },
-            {
-              "required": [
-                "min_machine_cpu"
-              ]
-            },
-            {
-              "required": [
-                "max_machine_cpu"
-              ]
-            }
-          ]
-        },
-        "properties": {
-          "default_machine_memory_mb": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "max_machine_memory_mb": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "max_total_memory_mb": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "provider": {
-            "enum": [
-              "blaxel"
-            ],
-            "type": "string"
-          }
-        },
-        "required": [
-          "provider",
-          "default_machine_memory_mb",
-          "max_total_memory_mb",
-          "max_machine_memory_mb"
-        ],
-        "type": "object"
-      }
-    ]
-  }
-]New value: +[
+  {
+    "$ref": "#/$defs/CreateMachinePoolRequestBase"
+  },
+  {
+    "oneOf": [
+      {
+        "properties": {
+          "default_machine_cpu": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "default_machine_memory_mb": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "max_machine_cpu": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "max_machine_memory_mb": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "max_total_cpu": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "max_total_memory_mb": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "provider": {
+            "enum": [
+              "agent37",
+              "arker",
+              "freestyle",
+              "modal",
+              "tenki",
+              "unikraft"
+            ],
+            "type": "string"
+          }
+        },
+        "required": [
+          "provider",
+          "default_machine_cpu",
+          "default_machine_memory_mb",
+          "max_total_cpu",
+          "max_total_memory_mb",
+          "max_machine_cpu",
+          "max_machine_memory_mb"
+        ],
+        "type": "object"
+      },
+      {
+        "properties": {
+          "max_machine_cpu": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "max_machine_memory_mb": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "max_total_cpu": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "max_total_memory_mb": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "provider": {
+            "enum": [
+              "boxd",
+              "createos",
+              "daytona",
+              "e2b",
+              "superserve"
+            ],
+            "type": "string"
+          }
+        },
+        "required": [
+          "provider",
+          "max_total_cpu",
+          "max_total_memory_mb",
+          "max_machine_cpu",
+          "max_machine_memory_mb"
+        ],
+        "type": "object"
+      },
+      {
+        "not": {
+          "anyOf": [
+            {
+              "required": [
+                "default_machine_cpu"
+              ]
+            },
+            {
+              "required": [
+                "max_total_cpu"
+              ]
+            },
+            {
+              "required": [
+                "min_machine_cpu"
+              ]
+            },
+            {
+              "required": [
+                "max_machine_cpu"
+              ]
+            }
+          ]
+        },
+        "properties": {
+          "default_machine_memory_mb": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "max_machine_memory_mb": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "max_total_memory_mb": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "provider": {
+            "enum": [
+              "blaxel"
+            ],
+            "type": "string"
+          }
+        },
+        "required": [
+          "provider",
+          "default_machine_memory_mb",
+          "max_total_memory_mb",
+          "max_machine_memory_mb"
+        ],
+        "type": "object"
+      }
+    ]
+  }
+]
  2. Changed1 schema field changedv0.1.2
    • changedInput schema / properties / body / allOf
      Previous value: -[
-  {
-    "$ref": "#/$defs/CreateMachinePoolRequestBase"
-  },
-  {
-    "oneOf": [
-      {
-        "properties": {
-          "default_machine_cpu": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "default_machine_memory_mb": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "max_machine_cpu": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "max_machine_memory_mb": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "max_total_cpu": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "max_total_memory_mb": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "provider": {
-            "enum": [
-              "arker",
-              "freestyle",
-              "modal",
-              "tenki",
-              "unikraft"
-            ],
-            "type": "string"
-          }
-        },
-        "required": [
-          "provider",
-          "default_machine_cpu",
-          "default_machine_memory_mb",
-          "max_total_cpu",
-          "max_total_memory_mb",
-          "max_machine_cpu",
-          "max_machine_memory_mb"
-        ],
-        "type": "object"
-      },
-      {
-        "properties": {
-          "max_machine_cpu": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "max_machine_memory_mb": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "max_total_cpu": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "max_total_memory_mb": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "provider": {
-            "enum": [
-              "boxd",
-              "createos",
-              "daytona"
-            ],
-            "type": "string"
-          }
-        },
-        "required": [
-          "provider",
-          "max_total_cpu",
-          "max_total_memory_mb",
-          "max_machine_cpu",
-          "max_machine_memory_mb"
-        ],
-        "type": "object"
-      },
-      {
-        "not": {
-          "anyOf": [
-            {
-              "required": [
-                "default_machine_cpu"
-              ]
-            },
-            {
-              "required": [
-                "max_total_cpu"
-              ]
-            },
-            {
-              "required": [
-                "min_machine_cpu"
-              ]
-            },
-            {
-              "required": [
-                "max_machine_cpu"
-              ]
-            }
-          ]
-        },
-        "properties": {
-          "default_machine_memory_mb": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "max_machine_memory_mb": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "max_total_memory_mb": {
-            "format": "int32",
-            "type": "integer"
-          },
-          "provider": {
-            "enum": [
-              "blaxel"
-            ],
-            "type": "string"
-          }
-        },
-        "required": [
-          "provider",
-          "default_machine_memory_mb",
-          "max_total_memory_mb",
-          "max_machine_memory_mb"
-        ],
-        "type": "object"
-      }
-    ]
-  }
-]New value: +[
+  {
+    "$ref": "#/$defs/CreateMachinePoolRequestBase"
+  },
+  {
+    "oneOf": [
+      {
+        "properties": {
+          "default_machine_cpu": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "default_machine_memory_mb": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "max_machine_cpu": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "max_machine_memory_mb": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "max_total_cpu": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "max_total_memory_mb": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "provider": {
+            "enum": [
+              "arker",
+              "freestyle",
+              "modal",
+              "tenki",
+              "unikraft"
+            ],
+            "type": "string"
+          }
+        },
+        "required": [
+          "provider",
+          "default_machine_cpu",
+          "default_machine_memory_mb",
+          "max_total_cpu",
+          "max_total_memory_mb",
+          "max_machine_cpu",
+          "max_machine_memory_mb"
+        ],
+        "type": "object"
+      },
+      {
+        "properties": {
+          "max_machine_cpu": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "max_machine_memory_mb": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "max_total_cpu": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "max_total_memory_mb": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "provider": {
+            "enum": [
+              "boxd",
+              "createos",
+              "daytona",
+              "e2b",
+              "superserve"
+            ],
+            "type": "string"
+          }
+        },
+        "required": [
+          "provider",
+          "max_total_cpu",
+          "max_total_memory_mb",
+          "max_machine_cpu",
+          "max_machine_memory_mb"
+        ],
+        "type": "object"
+      },
+      {
+        "not": {
+          "anyOf": [
+            {
+              "required": [
+                "default_machine_cpu"
+              ]
+            },
+            {
+              "required": [
+                "max_total_cpu"
+              ]
+            },
+            {
+              "required": [
+                "min_machine_cpu"
+              ]
+            },
+            {
+              "required": [
+                "max_machine_cpu"
+              ]
+            }
+          ]
+        },
+        "properties": {
+          "default_machine_memory_mb": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "max_machine_memory_mb": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "max_total_memory_mb": {
+            "format": "int32",
+            "type": "integer"
+          },
+          "provider": {
+            "enum": [
+              "blaxel"
+            ],
+            "type": "string"
+          }
+        },
+        "required": [
+          "provider",
+          "default_machine_memory_mb",
+          "max_total_memory_mb",
+          "max_machine_memory_mb"
+        ],
+        "type": "object"
+      }
+    ]
+  }
+]
  3. Changed3 schema fields changedv0.1.1
    • addedInput schema / $defs / SecretID / description
      Added value: +"Secret ID (sec_...)."
    • addedInput schema / properties / body / description
      Added value: +"Pool definition. name, provider, provider_auth_secret_id, default_machine_provider_options, and max_total_machines are always required; which default machine size and CPU and memory limits are required depends on the provider; Blaxel pools reject CPU fields."
    • addedInput schema / properties / orgID / description
      Added value: +"Organization ID (org_...)."
  4. First observed

TDQS

B3.4/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint=false, destructiveHint=false, idempotentHint=false, and openWorldHint=false, so the safety profile is covered. The description adds the genuinely useful nuance that required fields depend on the provider and defers full request shapes to the API reference. It does not disclose what a failed create looks like, whether re-posting the same name creates a duplicate (relevant given idempotentHint=false), or what a successful call returns.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences, front-loaded with the purpose before the body breakdown. The second sentence is long and enumerates all twelve providers inline, which is somewhat dense and duplicates the schema enums, but nothing is truly extraneous.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The nested schema with three oneOf provider branches is complex, and the external API reference pointer usefully compensates. However, with no output schema, the description says nothing about what a successful create returns (pool ID, resource representation), nor about failure or permission behavior, leaving a real gap for a mutation tool with a deep nested body.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema already documents body and orgID, including the oneOf provider branches. The description paraphrases the body contents (providers, auth secret, limits) at a high level and flags provider-dependent required fields, but adds no syntax or format meaning beyond the schema. Baseline 3 applies when the schema does the heavy lifting.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

Opens with a specific verb and resource: "Creates a machine pool in the organization." That is unambiguous against siblings like pools_update, pools_get, and pools_delete. It does not explicitly name a sibling or state when creation is preferred over an existing pool, so it stops short of the top band.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Usage is implied rather than stated: the agent learns the body carries name, provider, provider auth secret, and limits, and that required fields vary by provider. There is no explicit "use this instead of X" guidance and no prerequisite call sequence (e.g., that a secret must exist first for provider_auth_secret_id), only a pointer to external docs.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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