# update_global_var [application delivery] Update a global variable group Agent View of the PolicyLayer registry record for `update_global_var`. HTML page: https://policylayer.com/tools/alibabacloud-devops/update-global-var ## Facts - Tool: `update_global_var` - Server: Alibabacloud Devops (`alibabacloud-devops-mcp-server`) — https://policylayer.com/tools/alibabacloud-devops.md - Install: `npx -y alibabacloud-devops-mcp-server` - Homepage: git+ssh://git@github.com/aliyun/alibabacloud-devops-mcp-server.git - Risk category: Write (Medium risk) - Registry record: grade F, identity unverified - Server rate-limited: no - Parameters: 0 - Recommended policy verdict: Rate-limited ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "update_global_var", "arguments": {} } } ``` ## Why update_global_var is rated Medium This tool modifies application delivery configuration by updating global variables. It is a Write operation because it creates or modifies data reversibly. Severity is medium because misconfiguration of global variables could impact application deployments across multiple services, but the change is not destructive and can be corrected. From the tool's own definition: "Tool name 'update_global_var' and description 'Update a global variable group' indicate modification of existing data. The action is reversible (variables can be updated again or rolled back), and affects configuration state rather than destroying data." ## Use case AI agents use update_global_var to create or update resources in Alibabacloud Devops, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Alibabacloud Devops environment. ## Recommended policy (PolicyLayer) Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Alibabacloud Devops: ```json { "version": "1", "default": "deny", "tools": { "update_global_var": { "limits": [ { "counter": "update_global_var_rate", "window": "minute", "max": 30, "scope": "grant" } ] } } } ``` ## Other tools on Alibabacloud Devops (201) - `cancel_app_release_stage_execution` — Destructive — https://policylayer.com/tools/alibabacloud-devops/cancel-app-release-stage-execution.md - `cancel_appstack_change_request` — Destructive — https://policylayer.com/tools/alibabacloud-devops/cancel-appstack-change-request.md - `delete_app_orchestration` — Destructive — https://policylayer.com/tools/alibabacloud-devops/delete-app-orchestration.md - `delete_branch` — Destructive — https://policylayer.com/tools/alibabacloud-devops/delete-branch.md - `delete_file` — Destructive — https://policylayer.com/tools/alibabacloud-devops/delete-file.md - `delete_flow_variable_group` — Destructive — https://policylayer.com/tools/alibabacloud-devops/delete-flow-variable-group.md - `delete_resource_member` — Destructive — https://policylayer.com/tools/alibabacloud-devops/delete-resource-member.md - `delete_tag` — Destructive — https://policylayer.com/tools/alibabacloud-devops/delete-tag.md - `delete_tag_group` — Destructive — https://policylayer.com/tools/alibabacloud-devops/delete-tag-group.md - `delete_testcase` — Destructive — https://policylayer.com/tools/alibabacloud-devops/delete-testcase.md - `delete_variable_group` — Destructive — https://policylayer.com/tools/alibabacloud-devops/delete-variable-group.md - `delete_version` — Destructive — https://policylayer.com/tools/alibabacloud-devops/delete-version.md - `execute_app_release_stage` — Execute — https://policylayer.com/tools/alibabacloud-devops/execute-app-release-stage.md - `execute_job_action` — Execute — https://policylayer.com/tools/alibabacloud-devops/execute-job-action.md - `execute_pipeline_job_action` — Execute — https://policylayer.com/tools/alibabacloud-devops/execute-pipeline-job-action.md - `execute_pipeline_job_run` — Execute — https://policylayer.com/tools/alibabacloud-devops/execute-pipeline-job-run.md - `execute_system_release_stage` — Execute — https://policylayer.com/tools/alibabacloud-devops/execute-system-release-stage.md - `pass_app_release_stage_validate` — Execute — https://policylayer.com/tools/alibabacloud-devops/pass-app-release-stage-validate.md - `pass_pipeline_validate` — Execute — https://policylayer.com/tools/alibabacloud-devops/pass-pipeline-validate.md - `refuse_app_release_stage_validate` — Execute — https://policylayer.com/tools/alibabacloud-devops/refuse-app-release-stage-validate.md - `refuse_pipeline_validate` — Execute — https://policylayer.com/tools/alibabacloud-devops/refuse-pipeline-validate.md - `rerun_pipeline_job_run` — Execute — https://policylayer.com/tools/alibabacloud-devops/rerun-pipeline-job-run.md - `resume_vm_deploy_order` — Execute — https://policylayer.com/tools/alibabacloud-devops/resume-vm-deploy-order.md - `retry_app_release_stage_pipeline` — Execute — https://policylayer.com/tools/alibabacloud-devops/retry-app-release-stage-pipeline.md - `retry_pipeline_job_run` — Execute — https://policylayer.com/tools/alibabacloud-devops/retry-pipeline-job-run.md - `retry_vm_deploy_machine` — Execute — https://policylayer.com/tools/alibabacloud-devops/retry-vm-deploy-machine.md - `skip_app_release_stage_pipeline` — Execute — https://policylayer.com/tools/alibabacloud-devops/skip-app-release-stage-pipeline.md - `skip_pipeline_job_run` — Execute — https://policylayer.com/tools/alibabacloud-devops/skip-pipeline-job-run.md - `skip_vm_deploy_machine` — Execute — https://policylayer.com/tools/alibabacloud-devops/skip-vm-deploy-machine.md - `stop_pipeline_job_run` — Execute — https://policylayer.com/tools/alibabacloud-devops/stop-pipeline-job-run.md - …and 171 more: https://policylayer.com/tools/alibabacloud-devops.md ## For agents This record is a snapshot. Live verdicts and the full registry: - Check every server in your MCP config at once: `npx -y policylayer stack` - Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md) - Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events` --- Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=alibabacloud-devops · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/alibabacloud-devops