mirror of
https://github.com/GNS3/gns3-server.git
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268 lines
11 KiB
Python
268 lines
11 KiB
Python
#
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# Copyright (C) 2026 GNS3 Technologies Inc.
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# Author: Yue Guobin
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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MCP tool handlers for GNS3 node management.
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Handlers receive (params, gns3_ctx) and call GNS3's REST API
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via Gns3Connector (from custom_gns3fy).
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"""
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from typing import Any
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import logging
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log = logging.getLogger(__name__)
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# ── Helper ─────────────────────────────────────────────────────────────────
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def _get_connector(gns3_ctx: dict[str, Any]):
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from gns3server.agent.gns3_copilot.gns3_client.custom_gns3fy import Gns3Connector
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return Gns3Connector(
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url=gns3_ctx["server_url"],
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jwt_token=gns3_ctx["jwt_token"],
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api_version=3,
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verify=False,
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)
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# ── Tool handlers ──────────────────────────────────────────────────────────
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def get_nodes_handler(params: dict[str, Any], gns3_ctx: dict[str, Any]) -> dict[str, Any]:
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project_id = params.get("project_id")
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if not project_id:
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return {"error": "project_id is required"}
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conn = _get_connector(gns3_ctx)
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nodes = conn.get_nodes(project_id=project_id)
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return {"nodes": nodes, "count": len(nodes)}
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def get_node_handler(params: dict[str, Any], gns3_ctx: dict[str, Any]) -> dict[str, Any]:
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project_id = params.get("project_id")
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node_id = params.get("node_id")
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if not project_id or not node_id:
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return {"error": "project_id and node_id are required"}
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conn = _get_connector(gns3_ctx)
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return conn.get_node(project_id=project_id, node_id=node_id)
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def start_node_handler(params: dict[str, Any], gns3_ctx: dict[str, Any]) -> dict[str, Any]:
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project_id = params.get("project_id")
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node_id = params.get("node_id")
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if not project_id or not node_id:
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return {"error": "project_id and node_id are required"}
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conn = _get_connector(gns3_ctx)
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conn.http_call("post", f"{conn.base_url}/projects/{project_id}/nodes/{node_id}/start", json_data={})
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return {"message": f"Node {node_id} started", "node_id": node_id}
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def stop_node_handler(params: dict[str, Any], gns3_ctx: dict[str, Any]) -> dict[str, Any]:
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project_id = params.get("project_id")
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node_id = params.get("node_id")
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if not project_id or not node_id:
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return {"error": "project_id and node_id are required"}
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conn = _get_connector(gns3_ctx)
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conn.http_call("post", f"{conn.base_url}/projects/{project_id}/nodes/{node_id}/stop", json_data={})
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return {"message": f"Node {node_id} stopped", "node_id": node_id}
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def reload_node_handler(params: dict[str, Any], gns3_ctx: dict[str, Any]) -> dict[str, Any]:
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project_id = params.get("project_id")
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node_id = params.get("node_id")
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if not project_id or not node_id:
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return {"error": "project_id and node_id are required"}
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conn = _get_connector(gns3_ctx)
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conn.http_call("post", f"{conn.base_url}/projects/{project_id}/nodes/{node_id}/reload")
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return {"message": f"Node {node_id} reloaded", "node_id": node_id}
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def suspend_node_handler(params: dict[str, Any], gns3_ctx: dict[str, Any]) -> dict[str, Any]:
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project_id = params.get("project_id")
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node_id = params.get("node_id")
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if not project_id or not node_id:
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return {"error": "project_id and node_id are required"}
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conn = _get_connector(gns3_ctx)
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conn.http_call("post", f"{conn.base_url}/projects/{project_id}/nodes/{node_id}/suspend")
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return {"message": f"Node {node_id} suspended", "node_id": node_id}
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def create_node_handler(params: dict[str, Any], gns3_ctx: dict[str, Any]) -> dict[str, Any]:
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project_id = params.get("project_id")
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template_id = params.get("template_id")
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if not project_id or not template_id:
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return {"error": "project_id and template_id are required"}
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conn = _get_connector(gns3_ctx)
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data = {
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"x": params.get("x", 0),
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"y": params.get("y", 0),
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"compute_id": params.get("compute_id", "local"),
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}
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url = f"{conn.base_url}/projects/{project_id}/templates/{template_id}"
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return conn.http_call("post", url, json_data=data).json()
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def delete_node_handler(params: dict[str, Any], gns3_ctx: dict[str, Any]) -> dict[str, Any]:
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project_id = params.get("project_id")
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node_id = params.get("node_id")
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if not project_id or not node_id:
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return {"error": "project_id and node_id are required"}
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conn = _get_connector(gns3_ctx)
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conn.http_call("delete", f"{conn.base_url}/projects/{project_id}/nodes/{node_id}")
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return {"message": f"Node {node_id} deleted", "node_id": node_id}
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def update_node_handler(params: dict[str, Any], gns3_ctx: dict[str, Any]) -> dict[str, Any]:
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project_id = params.get("project_id")
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node_id = params.get("node_id")
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if not project_id or not node_id:
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return {"error": "project_id and node_id are required"}
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conn = _get_connector(gns3_ctx)
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# Pass all params except project_id/node_id as update fields
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update_data = {k: v for k, v in params.items() if k not in ("project_id", "node_id")}
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url = f"{conn.base_url}/projects/{project_id}/nodes/{node_id}"
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return conn.http_call("put", url, json_data=update_data).json()
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# ── Tool definitions ───────────────────────────────────────────────────────
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NODE_TOOLS = [
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{
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"name": "get_nodes",
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"description": "List all nodes in a project",
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"parameters": {
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"type": "object",
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"properties": {
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"project_id": {"type": "string", "description": "Project UUID"},
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},
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"required": ["project_id"],
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},
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"handler": get_nodes_handler,
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},
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{
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"name": "get_node",
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"description": "Get detailed information about a specific node",
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"parameters": {
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"type": "object",
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"properties": {
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"project_id": {"type": "string", "description": "Project UUID"},
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"node_id": {"type": "string", "description": "Node UUID"},
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},
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"required": ["project_id", "node_id"],
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},
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"handler": get_node_handler,
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},
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{
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"name": "start_node",
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"description": "Start a node in a project",
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"parameters": {
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"type": "object",
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"properties": {
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"project_id": {"type": "string", "description": "Project UUID"},
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"node_id": {"type": "string", "description": "Node UUID"},
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},
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"required": ["project_id", "node_id"],
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},
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"handler": start_node_handler,
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},
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{
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"name": "stop_node",
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"description": "Stop a node in a project",
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"parameters": {
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"type": "object",
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"properties": {
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"project_id": {"type": "string", "description": "Project UUID"},
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"node_id": {"type": "string", "description": "Node UUID"},
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},
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"required": ["project_id", "node_id"],
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},
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"handler": stop_node_handler,
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},
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{
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"name": "reload_node",
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"description": "Reload (restart) a node in a project",
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"parameters": {
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"type": "object",
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"properties": {
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"project_id": {"type": "string", "description": "Project UUID"},
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"node_id": {"type": "string", "description": "Node UUID"},
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},
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"required": ["project_id", "node_id"],
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},
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"handler": reload_node_handler,
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},
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{
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"name": "suspend_node",
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"description": "Suspend a node in a project",
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"parameters": {
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"type": "object",
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"properties": {
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"project_id": {"type": "string", "description": "Project UUID"},
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"node_id": {"type": "string", "description": "Node UUID"},
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},
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"required": ["project_id", "node_id"],
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},
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"handler": suspend_node_handler,
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},
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{
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"name": "create_node",
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"description": "Create a new node from a template in a project",
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"parameters": {
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"type": "object",
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"properties": {
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"project_id": {"type": "string", "description": "Project UUID"},
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"template_id": {"type": "string", "description": "Template UUID"},
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"x": {"type": "integer", "description": "X coordinate (optional)"},
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"y": {"type": "integer", "description": "Y coordinate (optional)"},
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"compute_id": {"type": "string", "description": "Compute ID (optional, default: local)"},
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},
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"required": ["project_id", "template_id"],
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},
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"handler": create_node_handler,
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},
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{
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"name": "delete_node",
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"description": "Delete a node from a project",
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"parameters": {
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"type": "object",
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"properties": {
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"project_id": {"type": "string", "description": "Project UUID"},
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"node_id": {"type": "string", "description": "Node UUID"},
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},
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"required": ["project_id", "node_id"],
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},
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"handler": delete_node_handler,
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},
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{
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"name": "update_node",
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"description": "Update a node's properties (name, position, etc.)",
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"parameters": {
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"type": "object",
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"properties": {
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"project_id": {"type": "string", "description": "Project UUID"},
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"node_id": {"type": "string", "description": "Node UUID"},
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"name": {"type": "string", "description": "New node name (optional)"},
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"x": {"type": "integer", "description": "New X position (optional)"},
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"y": {"type": "integer", "description": "New Y position (optional)"},
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"compute_id": {"type": "string", "description": "Compute ID (optional)"},
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},
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"required": ["project_id", "node_id"],
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},
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"handler": update_node_handler,
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},
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]
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