# delete_version

[Project Management] Delete a version from a Yunxiao Project.\n\nUse Cases:\n\nRemove obsolete versions\nClean up project versions

Agent View of the PolicyLayer registry record for `delete_version`. HTML page: https://policylayer.com/tools/alibabacloud-devops/delete-version

## Facts

- Tool: `delete_version`
- 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: Destructive (Critical risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Hidden

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "delete_version",
    "arguments": {}
  }
}
```

## Why delete_version is rated Critical

This tool irreversibly deletes project versions, which cannot be undone. Deletion is a destructive operation that destroys data. While the blast radius is limited to version records rather than core application data, accidental deletion of important project versions could disrupt development workflows and lose historical information.

From the tool's own definition: "Tool name 'delete_version' and description explicitly states 'Delete a version' which is an irreversible operation. The use case 'Clean up project versions' confirms permanent removal of data."

## Use case

AI agents call delete_version to permanently remove resources in Alibabacloud Devops, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

## Recommended policy (PolicyLayer)

Verdict: **Hidden**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Alibabacloud Devops:

```json
{
  "version": "1",
  "default": "deny",
  "hide": [
    "delete_version"
  ]
}
```

## 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
- `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
- `stop_vm_deploy_order` — Execute — https://policylayer.com/tools/alibabacloud-devops/stop-vm-deploy-order.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