# dex_list_colos

View a list of Cloudflare colos sorted alphabetically or by frequency encountered in fleet status or DEX test data.

Agent View of the PolicyLayer registry record for `dex_list_colos`. HTML page: https://policylayer.com/tools/cloudflare/dex-list-colos

## Facts

- Tool: `dex_list_colos`
- Server: Cloudflare (`https://builds.mcp.cloudflare.com/sse`) — https://policylayer.com/tools/cloudflare.md
- Homepage: https://github.com/cloudflare/mcp-server-cloudflare
- Risk category: Read (Low risk)
- Registry record: grade D, identity verified
- Server auth posture: gated
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

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

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

## Why dex_list_colos is rated Low

This tool retrieves and displays information about Cloudflare colocation points (colos) in sorted order. It is purely informational with no side effects, data modification, or destructive capabilities. The action is a simple data retrieval operation analogous to a 'list' or 'view' command, making it a Read-category tool with low severity impact.

From the tool's own definition: "Tool name 'dex_list_colos' and description 'View a list of Cloudflare colos sorted alphabetically or by frequency' indicates a query/listing operation with no modification of data."

## Use case

AI agents call dex_list_colos to retrieve information from Cloudflare without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

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

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "dex_list_colos": {}
  }
}
```

## Other tools on Cloudflare (91)

- `container_file_delete` — Destructive — https://policylayer.com/tools/cloudflare/container-file-delete.md
- `container_exec` — Execute — https://policylayer.com/tools/cloudflare/container-exec.md
- `container_initialize` — Execute — https://policylayer.com/tools/cloudflare/container-initialize.md
- `dex_create_remote_pcap` — Execute — https://policylayer.com/tools/cloudflare/dex-create-remote-pcap.md
- `dex_create_remote_warp_diag` — Execute — https://policylayer.com/tools/cloudflare/dex-create-remote-warp-diag.md
- `container_file_read` — Read — https://policylayer.com/tools/cloudflare/container-file-read.md
- `container_files_list` — Read — https://policylayer.com/tools/cloudflare/container-files-list.md
- `container_ping` — Read — https://policylayer.com/tools/cloudflare/container-ping.md
- `dex_analyze_warp_diag` — Read — https://policylayer.com/tools/cloudflare/dex-analyze-warp-diag.md
- `dex_explore_remote_warp_diag_output` — Read — https://policylayer.com/tools/cloudflare/dex-explore-remote-warp-diag-output.md
- `dex_fleet_status_live` — Read — https://policylayer.com/tools/cloudflare/dex-fleet-status-live.md
- `dex_fleet_status_logs` — Read — https://policylayer.com/tools/cloudflare/dex-fleet-status-logs.md
- `dex_fleet_status_over_time` — Read — https://policylayer.com/tools/cloudflare/dex-fleet-status-over-time.md
- `dex_http_test_details` — Read — https://policylayer.com/tools/cloudflare/dex-http-test-details.md
- `dex_list_remote_capture_eligible_devices` — Read — https://policylayer.com/tools/cloudflare/dex-list-remote-capture-eligible-devices.md
- `dex_list_remote_captures` — Read — https://policylayer.com/tools/cloudflare/dex-list-remote-captures.md
- `dex_list_remote_warp_diag_contents` — Read — https://policylayer.com/tools/cloudflare/dex-list-remote-warp-diag-contents.md
- `dex_list_tests` — Read — https://policylayer.com/tools/cloudflare/dex-list-tests.md
- `dex_list_warp_change_events` — Read — https://policylayer.com/tools/cloudflare/dex-list-warp-change-events.md
- `dex_test_statistics` — Read — https://policylayer.com/tools/cloudflare/dex-test-statistics.md
- `dex_traceroute_test_details` — Read — https://policylayer.com/tools/cloudflare/dex-traceroute-test-details.md
- `dex_traceroute_test_network_path` — Read — https://policylayer.com/tools/cloudflare/dex-traceroute-test-network-path.md
- `dex_traceroute_test_result_network_path` — Read — https://policylayer.com/tools/cloudflare/dex-traceroute-test-result-network-path.md
- `dns_report` — Read — https://policylayer.com/tools/cloudflare/dns-report.md
- `get_ai_data` — Read — https://policylayer.com/tools/cloudflare/get-ai-data.md
- `get_annotations` — Read — https://policylayer.com/tools/cloudflare/get-annotations.md
- `get_as_details` — Read — https://policylayer.com/tools/cloudflare/get-as-details.md
- `get_as_relationships` — Read — https://policylayer.com/tools/cloudflare/get-as-relationships.md
- `get_as_set` — Read — https://policylayer.com/tools/cloudflare/get-as-set.md
- `get_as112_data` — Read — https://policylayer.com/tools/cloudflare/get-as112-data.md
- …and 61 more: https://policylayer.com/tools/cloudflare.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=cloudflare · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/cloudflare