Omnara

Create agent config

configs_create

Compiles and saves an immutable agent config (instruction, model, tools, machine_sources, and more) from YAML or JSON and returns it. Sending the same source again returns the existing config, as long as its names still resolve to the same resources.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "orgID": "<orgID>",
      "projectID": "<projectID>",
      "source": "<source>",
      "source_format": "<source_format>"
    },
    "name": "configs_create"
  }
}

Input Schema

Name	Required	Description
`orgID`	Yes	Organization ID (org_...).
`source`	Yes	Agent config source as YAML or JSON text, or, with source_format json, as a JSON object.
`projectID`	Yes	Project ID (proj_...).
`source_format`	Yes	Format of source: yaml or json.

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedNov 12, 2026

changedInput schema / $defs / AgentConfigDefinitionGitCredentials / properties / read_only / description

Previous value: -"Prevents pushing, even if the integration allows it."New value: +"Prevents pushing and opening or approving pull requests, even if the integration allows it."

Changed2 schema fields changedOct 29, 2026

removedInput schema / $defs / AgentConfigDefinition / properties / event_webhook
```
Removed value: -{
-  "$ref": "#/$defs/AgentConfigDefinitionEventWebhook"
-}
```

removedInput schema / $defs / AgentConfigDefinitionEventWebhook

Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "events": {
-      "items": {
-        "enum": [
-          "agent_input",
-          "model_output",
-          "tool_result",
-          "context_checkpoint",
-          "tool_call_update"
-        ]
-      },
-      "minItems": 1,
-      "type": "array",
-      "uniqueItems": true
-    },
-    "signing_secret_id": {
-      "minLength": 1,
-      "type": "string"
-    },
-    "url": {
-      "minLength": 1,
-      "type": "string"
-    }
-  },
-  "required": [
-    "url",
-    "events"
-  ],
-  "type": "object",
-  "x-go-type": "json.RawMessage"
-}

Changed2 schema fields changedOct 23, 2026

addedInput schema / $defs / AgentConfigDefinitionGitCredentials / properties / read_only

Added value: +{
+  "description": "Prevents pushing, even if the integration allows it.",
+  "type": "boolean"
+}

addedInput schema / $defs / AgentConfigDefinitionGitCredentials / properties / repository_ids

Added value: +{
+  "description": "GitHub repository IDs the credentials can access. Defaults to every repository the installation can access.",
+  "items": {
+    "minimum": 1,
+    "type": "integer"
+  },
+  "maxItems": 500,
+  "minItems": 1,
+  "type": "array",
+  "uniqueItems": true
+}

Changed3 schema fields changedOct 17, 2026
- addedInput schema / properties / orgID / description
```
Added value: +"Organization ID (org_...)."
```
- addedInput schema / properties / projectID / description
```
Added value: +"Project ID (proj_...)."
```
- addedInput schema / properties / source_format / description
```
Added value: +"Format of source: yaml or json."
```
Changed6 schema fields changedOct 15, 2026
- addedInput schema / $defs / AgentConfigDefinitionModel / properties / context_window_tokens / description
```
Added value: +"Context budget for input and output tokens. Triggers compaction when estimated input exceeds the remaining budget after output and safety reserves. The turn fails if compaction cannot make it fit."
```
- addedInput schema / $defs / AgentConfigDefinitionModel / properties / context_window_tokens / maximum
```
Added value: +2147483647
```
- changedInput schema / $defs / AgentConfigDefinitionModel / properties / context_window_tokens / minimum
```
Previous value: -1New value: +2
```
- addedInput schema / $defs / AgentConfigDefinitionSubagentModel / properties / context_window_tokens / description
```
Added value: +"Context budget for input and output tokens. Triggers compaction when estimated input exceeds the remaining budget after output and safety reserves. The turn fails if compaction cannot make it fit."
```
- addedInput schema / $defs / AgentConfigDefinitionSubagentModel / properties / context_window_tokens / maximum
```
Added value: +2147483647
```
- changedInput schema / $defs / AgentConfigDefinitionSubagentModel / properties / context_window_tokens / minimum
```
Previous value: -1New value: +2
```

Changed6 schema fields changedOct 14, 2026

addedInput schema / $defs

Added value: +{
+  "AgentConfigDefinition": {
+    "additionalProperties": false,
+    "description": "An agent config as a JSON object. This schema is the source of truth for agent configs: the server compiles YAML and JSON configs against it.",
+    "properties": {
+      "event_webhook": {
+        "$ref": "#/$defs/AgentConfigDefinitionEventWebhook"
+      },
+      "git_credentials": {
+        "$ref": "#/$defs/AgentConfigDefinitionGitCredentials"
+      },
+      "instruction": {
+        "minLength": 1,
+        "pattern": "\\S",
+        "type": "string"
+      },
+      "interaction_handlers": {
+        "$ref": "#/$defs/AgentConfigDefinitionInteractionHandlers"
+      },
+      "machine_sources": {
+        "$ref": "#/$defs/AgentConfigDefinitionMachineSources"
+      },
+      "max_depth": {
+        "maximum": 8,
+        "minimum": 1,
+        "type": "integer"
+      },
+      "max_subagents": {
+        "maximum": 2147483647,
+        "minimum": 1,
+        "type": "integer"
+      },
+      "mcp": {
+        "$ref": "#/$defs/AgentConfigDefinitionMCPServers"
+      },
+      "memory_stores": {
+        "$ref": "#/$defs/AgentConfigDefinitionMemoryStores"
+      },
+      "model": {
+        "$ref": "#/$defs/AgentConfigDefinitionModel"
+      },
+      "skills": {
+        "$ref": "#/$defs/AgentConfigDefinitionSkills"
+      },
+      "subagents": {
+        "$ref": "#/$defs/AgentConfigDefinitionSubagents"
+      },
+      "tools": {
+        "$ref": "#/$defs/AgentConfigDefinitionTools"
+      },
+      "version": {
+        "enum": [
+          "v1"
+        ]
+      }
+    },
+    "required": [
+      "instruction",
+      "model"
+    ],
+    "type": "object",
+    "x-go-type": "json.RawMessage"
+  },
+  "AgentConfigDefinitionEventWebhook": {
+    "additionalProperties": false,
+    "properties": {
+      "events": {
+        "items": {
+          "enum": [
+            "agent_input",
+            "model_output",
+            "tool_result",
+            "context_checkpoint",
+            "tool_call_update"
+          ]
+        },
+        "minItems": 1,
+        "type": "array",
+        "uniqueItems": true
+      },
+      "signing_secret_id": {
+        "minLength": 1,
+        "type": "string"
+      },
+      "url": {
+        "minLength": 1,
+        "type": "string"
+      }
+    },
+    "required": [
+      "url",
+      "events"
+    ],
+    "type": "object",
+    "x-go-type": "json.RawMessage"
+  },
+  "AgentConfigDefinitionGitCredentials": {
+    "additionalProperties": false,
+    "description": "Integration whose git credentials the agent's machines use.",
+    "properties": {
+      "integration": {
+        "pattern": "^[a-zA-Z][a-zA-Z0-9-]{0,31}$",
+        "type": "string"
+      }
+    },
+    "required": [
+      "integration"
+    ],
+    "type": "object",
+    "x-go-type": "json.RawMessage"
+  },
+  "AgentConfigDefinitionInteractionHandler": {
+    "additionalProperties": false,
+    "description": "Enables an integration's interaction handler. Takes no settings.",
+    "type": "object",
+    "x-go-type": "agentconfig.AgentConfigIntegrationCapabilitySource",
+    "x-go-type-import": {
+      "path": "github.com/omnara-ai/omnara/internal/agentconfig"
+    }
+  },
+  "AgentConfigDefinitionInteractionHandlers": {
+    "anyOf": [
+      {
+        "additionalProperties": {
+          "$ref": "#/$defs/AgentConfigDefinitionInteractionHandler"
+        },
+        "propertyNames": {
+          "pattern": "^[a-zA-Z][a-zA-Z0-9-]{0,31}$",
+          "type": "string"
+        },
+        "type": "object"
+      },
+      {
+        "type": "null"
+      }
+    ],
+    "description": "Interaction handlers keyed by integration name.",
+    "x-go-type": "json.RawMessage"
+  },
+  "AgentConfigDefinitionMCPAuth": {
+    "additionalProperties": false,
+    "properties": {
+      "region": {
+        "minLength": 1,
+        "type": "string"
+      },
+      "secret_id": {
+        "minLength": 1,
+        "pattern": "^sec_[a-z2-7]{26}$",
+        "type": "string"
+      },
+      "service": {
+        "minLength": 1,
+        "type": "string"
+      },
+      "type": {
+        "enum": [
+          "bearer",
+          "oauth",
+          "sigv4"
+        ]
+      }
+    },
+    "required": [
+      "type",
+      "secret_id"
+    ],
+    "type": "object",
+    "x-go-type": "json.RawMessage"
+  },
+  "AgentConfigDefinitionMCPServer": {
+    "additionalProperties": false,
+    "properties": {
+      "auth": {
+        "$ref": "#/$defs/AgentConfigDefinitionMCPAuth"
+      },
+      "default_enabled": {
+        "anyOf": [
+          {
+            "type": "boolean"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "deferred": {
+        "type": "boolean"
+      },
+      "permission": {
+        "$ref": "#/$defs/AgentConfigDefinitionToolPermission"
+      },
+      "tools": {
+        "additionalProperties": {
+          "$ref": "#/$defs/AgentConfigDefinitionMCPTool"
+        },
+        "propertyNames": {
+          "pattern": "^[a-zA-Z][a-zA-Z0-9_-]{0,63}$",
+          "type": "string"
+        },
+        "type": "object"
+      },
+      "url": {
+        "minLength": 1,
+        "type": "string"
+      }
+    },
+    "required": [
+      "url"
+    ],
+    "type": "object",
+    "x-go-type": "json.RawMessage"
+  },
+  "AgentConfigDefinitionMCPServers": {
+    "anyOf": [
+      {
+        "additionalProperties": {
+          "$ref": "#/$defs/AgentConfigDefinitionMCPServer"
+        },
+        "propertyNames": {
+          "pattern": "^[a-zA-Z][a-zA-Z0-9-]{0,31}$",
+          "type": "string"
+        },
+        "type": "object"
+      },
+      {
+        "type": "null"
+      }
+    ],
+    "x-go-type": "json.RawMessage"
+  },
+  "AgentConfigDefinitionMCPTool": {
+    "additionalProperties": false,
+    "properties": {
+      "deferred": {
+        "anyOf": [
+          {
+            "type": "boolean"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "enabled": {
+        "anyOf": [
+          {
+            "type": "boolean"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "permission": {
+        "$ref": "#/$defs/AgentConfigDefinitionToolPermission"
+      }
+    },
+    "type": "object",
+    "x-go-type": "json.RawMessage"
+  },
+  "AgentConfigDefinitionMachineSource": {
+    "additionalProperties": false,
+    "oneOf": [
+      {
+        "required": [
+          "machine_name"
+        ],
+        "type": "object"
+      },
+      {
+        "required": [
+          "machine_pool_name"
+        ],
+        "type": "object"
+      }
+    ],
+    "properties": {
+      "cwd": {
+        "maxLength": 4096,
+        "type": "string"
+      },
+      "delete_after_idle_minutes": {
+        "anyOf": [
+          {
+            "const": 0
+          },
+          {
+            "maximum": 2147483647,
+            "minimum": 5,
+            "type": "integer"
+          }
+        ]
+      },
+      "description": {
+        "maxLength": 4096,
+        "type": "string"
+      },
+      "env_overlay": {
+        "anyOf": [
+          {
+            "additionalProperties": {
+              "anyOf": [
+                {
+                  "type": "string"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            },
+            "propertyNames": {
+              "$ref": "#/$defs/EnvironmentVariableName"
+            },
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "initial_num_machines": {
+        "minimum": 0,
+        "type": "integer"
+      },
+      "machine_cpu": {
+        "maximum": 2147483647,
+        "minimum": 1,
+        "type": "integer"
+      },
+      "machine_memory_mb": {
+        "maximum": 2147483647,
+        "minimum": 1,
+        "type": "integer"
+      },
+      "machine_name": {
+        "$ref": "#/$defs/ResourceNameReference"
+      },
+      "machine_pool_name": {
+        "$ref": "#/$defs/ResourceNameReference"
+      },
+      "machine_provider_options_overlay": {
+        "anyOf": [
+          {
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "max_machines": {
+        "minimum": 0,
+        "type": "integer"
+      },
+      "secret_env_overlay": {
+        "anyOf": [
+          {
+            "additionalProperties": {
+              "anyOf": [
+                {
+                  "pattern": "^sec_[a-z2-7]{26}$",
+                  "type": "string"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            },
+            "propertyNames": {
+              "$ref": "#/$defs/EnvironmentVariableName"
+            },
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      }
+    },
+    "type": "object",
+    "x-go-type": "json.RawMessage"
+  },
+  "AgentConfigDefinitionMachineSources": {
+    "anyOf": [
+      {
+        "items": {
+          "$ref": "#/$defs/AgentConfigDefinitionMachineSource"
+        },
+        "type": "array"
+      },
+      {
+        "type": "null"
+      }
+    ],
+    "x-go-type": "json.RawMessage"
+  },
+  "AgentConfigDefinitionMemoryStore": {
+    "additionalProperties": false,
+    "properties": {
+      "access": {
+        "enum": [
+          "read",
+          "read_write"
+        ],
+        "type": "string"
+      },
+      "name": {
+        "$ref": "#/$defs/MemoryStoreName"
+      }
+    },
+    "required": [
+      "name",
+      "access"
+    ],
+    "type": "object",
+    "x-go-type": "json.RawMessage"
+  },
+  "AgentConfigDefinitionMemoryStores": {
+    "anyOf": [
+      {
+        "items": {
+          "$ref": "#/$defs/AgentConfigDefinitionMemoryStore"
+        },
+        "type": "array"
+      },
+      {
+        "type": "null"
+      }
+    ],
+    "x-go-type": "json.RawMessage"
+  },
+  "AgentConfigDefinitionModel": {
+    "additionalProperties": false,
+    "properties": {
+      "cache_retention": {
+        "enum": [
+          "none",
+          "short",
+          "long"
+        ]
+      },
+      "context_window_tokens": {
+        "minimum": 1,
+        "type": "integer"
+      },
+      "default_max_output_tokens": {
+        "minimum": 1,
+        "type": "integer"
+      },
+      "name": {
+        "$ref": "#/$defs/ResourceNameReference"
+      },
+      "provider_config": {
+        "$ref": "#/$defs/ResourceNameReference"
+      },
+      "reasoning": {
+        "additionalProperties": false,
+        "properties": {
+          "effort": {
+            "minLength": 1,
+            "pattern": "\\S",
+            "type": "string"
+          }
+        },
+        "required": [
+          "effort"
+        ],
+        "type": "object"
+      }
+    },
+    "required": [
+      "provider_config",
+      "name"
+    ],
+    "type": "object",
+    "x-go-type": "json.RawMessage"
+  },
+  "AgentConfigDefinitionSkills": {
+    "anyOf": [
+      {
+        "items": {
+          "pattern": "^skl_[a-z2-7]{26}$",
+          "type": "string"
+        },
+        "type": "array",
+        "uniqueItems": true
+      },
+      {
+        "type": "null"
+      }
+    ],
+    "x-go-type": "json.RawMessage"
+  },
+  "AgentConfigDefinitionSubagent": {
+    "additionalProperties": false,
+    "else": {
+      "not": {
+        "required": [
+          "profile"
+        ],
+        "type": "object"
+      }
+    },
+    "if": {
+      "properties": {
+        "type": {
+          "const": "profile"
+        }
+      },
+      "required": [
+        "type"
+      ],
+      "type": "object"
+    },
+    "properties": {
+      "archive_after_idle_minutes": {
+        "maximum": 2147483647,
+        "minimum": 1,
+        "type": "integer"
+      },
+      "description": {
+        "type": "string"
+      },
+      "instruction": {
+        "$ref": "#/$defs/AgentConfigDefinitionSubagentInstruction"
+      },
+      "max_instances": {
+        "maximum": 2147483647,
+        "minimum": 1,
+        "type": "integer"
+      },
+      "model": {
+        "$ref": "#/$defs/AgentConfigDefinitionSubagentModel"
+      },
+      "profile": {
+        "$ref": "#/$defs/ResourceNameReference"
+      },
+      "type": {
+        "enum": [
+          "profile",
+          "self"
+        ]
+      }
+    },
+    "required": [
+      "type"
+    ],
+    "then": {
+      "required": [
+        "profile"
+      ]
+    },
+    "type": "object",
+    "x-go-type": "json.RawMessage"
+  },
+  "AgentConfigDefinitionSubagentInstruction": {
+    "additionalProperties": false,
+    "properties": {
+      "append": {
+        "type": "string"
+      }
+    },
+    "type": "object",
+    "x-go-type": "json.RawMessage"
+  },
+  "AgentConfigDefinitionSubagentModel": {
+    "additionalProperties": false,
+    "dependentRequired": {
+      "name": [
+        "provider_config"
+      ],
+      "provider_config": [
+        "name"
+      ]
+    },
+    "properties": {
+      "cache_retention": {
+        "enum": [
+          "none",
+          "short",
+          "long"
+        ]
+      },
+      "context_window_tokens": {
+        "minimum": 1,
+        "type": "integer"
+      },
+      "default_max_output_tokens": {
+        "minimum": 1,
+        "type": "integer"
+      },
+      "name": {
+        "$ref": "#/$defs/ResourceNameReference"
+      },
+      "provider_config": {
+        "$ref": "#/$defs/ResourceNameReference"
+      },
+      "reasoning": {
+        "additionalProperties": false,
+        "properties": {
+          "effort": {
+            "minLength": 1,
+            "pattern": "\\S",
+            "type": "string"
+          }
+        },
+        "required": [
+          "effort"
+        ],
+        "type": "object"
+      }
+    },
+    "type": "object",
+    "x-go-type": "json.RawMessage"
+  },
+  "AgentConfigDefinitionSubagents": {
+    "anyOf": [
+      {
+        "additionalProperties": {
+          "$ref": "#/$defs/AgentConfigDefinitionSubagent"
+        },
+        "propertyNames": {
+          "pattern": "^[A-Za-z_][A-Za-z0-9_]{0,63}$",
+          "type": "string"
+        },
+        "type": "object"
+      },
+      {
+        "type": "null"
+      }
+    ],
+    "x-go-type": "json.RawMessage"
+  },
+  "AgentConfigDefinitionTool": {
+    "additionalProperties": false,
+    "else": {
+      "not": {
+        "anyOf": [
+          {
+            "required": [
+              "description"
+            ],
+            "type": "object"
+          },
+          {
+            "required": [
+              "input_schema"
+            ],
+            "type": "object"
+          }
+        ]
+      }
+    },
+    "if": {
+      "properties": {
+        "type": {
+          "const": "custom"
+        }
+      },
+      "required": [
+        "type"
+      ],
+      "type": "object"
+    },
+    "properties": {
+      "deferred": {
+        "type": "boolean"
+      },
+      "description": {
+        "minLength": 1,
+        "type": "string"
+      },
+      "enabled": {
+        "anyOf": [
+          {
+            "type": "boolean"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "input_schema": {
+        "$ref": "#/$defs/AgentConfigDefinitionToolInputSchema"
+      },
+      "permission": {
+        "$ref": "#/$defs/AgentConfigDefinitionToolPermission"
+      },
+      "type": {
+        "enum": [
+          "built_in",
+          "custom"
+        ]
+      }
+    },
+    "then": {
+      "required": [
+        "description",
+        "input_schema"
+      ]
+    },
+    "type": "object",
+    "x-go-type": "agentconfig.AgentConfigToolSource",
+    "x-go-type-import": {
+      "path": "github.com/omnara-ai/omnara/internal/agentconfig"
+    }
+  },
+  "AgentConfigDefinitionToolInputSchema": {
+    "additionalProperties": true,
+    "description": "A JSON Schema for the tool's input. Keywords beyond those listed, such as additionalProperties or description, are allowed.",
+    "properties": {
+      "properties": {
+        "additionalProperties": {
+          "type": "object"
+        },
+        "type": "object"
+      },
+      "required": {
+        "items": {
+          "minLength": 1,
+          "type": "string"
+        },
+        "type": "array"
+      },
+      "type": {
+        "const": "object"
+      }
+    },
+    "required": [
+      "type"
+    ],
+    "type": "object",
+    "x-go-type": "json.RawMessage"
+  },
+  "AgentConfigDefinitionToolPermission": {
+    "additionalProperties": false,
+    "properties": {
+      "mode": {
+        "minLength": 1,
+        "pattern": "\\S",
+        "type": "string"
+      },
+      "parameters": {
+        "type": "object"
+      }
+    },
+    "required": [
+      "mode"
+    ],
+    "type": "object",
+    "x-go-type": "json.RawMessage"
+  },
+  "AgentConfigDefinitionTools": {
+    "anyOf": [
+      {
+        "additionalProperties": {
+          "$ref": "#/$defs/AgentConfigDefinitionTool"
+        },
+        "propertyNames": {
+          "allOf": [
+            {
+              "anyOf": [
+                {
+                  "pattern": "^[A-Za-z_][A-Za-z0-9_]{0,63}$",
+                  "type": "string"
+                },
+                {
+                  "maxLength": 64,
+                  "pattern": "^int__[a-zA-Z][a-zA-Z0-9-]{0,31}__[a-zA-Z][a-zA-Z0-9_-]*$",
+                  "type": "string"
+                }
+              ]
+            },
+            {
+              "not": {
+                "pattern": "^mcp__",
+                "type": "string"
+              }
+            }
+          ]
+        },
+        "type": "object"
+      },
+      {
+        "type": "null"
+      }
+    ],
+    "x-go-type": "json.RawMessage"
+  },
+  "EnvironmentVariableName": {
+    "minLength": 1,
+    "pattern": "^[^=\\x00]+$",
+    "type": "string"
+  },
+  "MemoryStoreName": {
+    "description": "Machine-readable memory store identifier consisting of lowercase ASCII segments separated by single hyphens.",
+    "maxLength": 64,
+    "minLength": 1,
+    "pattern": "^[a-z0-9]+(?:-[a-z0-9]+)*$",
+    "type": "string"
+  },
+  "ResourceNameReference": {
+    "description": "Name of an existing resource, resolved when the config is compiled.",
+    "maxLength": 64,
+    "minLength": 1,
+    "pattern": "^\\S(?:.*\\S)?$",
+    "type": "string"
+  }
+}

addedInput schema / properties / source / anyOf

Added value: +[
+  {
+    "minLength": 1,
+    "type": "string"
+  },
+  {
+    "$ref": "#/$defs/AgentConfigDefinition"
+  }
+]

addedInput schema / properties / source / description

Added value: +"Agent config source as YAML or JSON text, or, with source_format json, as a JSON object."

removedInput schema / properties / source / minLength
```
Removed value: -1
```
removedInput schema / properties / source / type
```
Removed value: -"string"
```
addedInput schema / properties / source / x-go-type
```
Added value: +"json.RawMessage"
```

First observedOct 13, 2026

TDQS

A3.8/5.0

Behavior4/5

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

Adds real information beyond the annotations: configs are immutable once saved, compilation validates the source against a schema, and repeat submissions return the existing config only while referenced names still resolve. The dedupe claim sits slightly in tension with idempotentHint=false, but the caveat about name resolution makes it a distinct content-addressed rule rather than a genuine contradiction.

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

Conciseness5/5

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

Two sentences, front-loaded with the core action, with the dedupe caveat immediately after. No filler and no restatement of the title.

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

Completeness4/5

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

For a four-parameter tool with a very rich nested schema and no output schema, the description covers the essential behavior: what is created, from what input, immutability, and repeat-submission semantics. It could still say what happens when a referenced name fails to resolve or what the response contains, but the gaps are minor.

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 orgID, projectID, source, and source_format thoroughly. The description adds only that source may be YAML or JSON text, which the schema states anyway, and gives no extra detail on the source/format pairing or the object form of source.

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?

States a specific verb pair ("Compiles and saves") and a precise resource ("immutable agent config"), and enumerates the fields that make up the config. It is clear enough to distinguish from a plain read like configs_get, but no sibling is named explicitly, so it stops short of full differentiation.

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?

The description implies the calling context (supply a YAML/JSON source, get back a compiled config) and discloses a dedupe rule for repeated sources. It never says when to use this versus configs_get or profiles_create, and gives no prerequisites for the referenced names being resolvable.

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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