# reg_search

Walk a key tree and report value names and data containing keyword (substring, case-insensitive).

Agent View of the PolicyLayer registry record for `reg_search`. HTML page: https://policylayer.com/tools/mcp-hands/reg-search

## Facts

- Tool: `reg_search`
- Server: Mcp Hands (`huocai250/mcp-hands`) — https://policylayer.com/tools/mcp-hands.md
- Homepage: https://github.com/huocai250/mcp-hands
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- 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": "reg_search",
    "arguments": {}
  }
}
```

## Why reg_search is rated Low

Even though reg_search only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

## Use case

AI agents call reg_search to retrieve information from Mcp Hands 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 Mcp Hands:

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

## Other tools on Mcp Hands (377)

- `call_clear` — Destructive — https://policylayer.com/tools/mcp-hands/call-clear.md
- `dedupe_lines` — Destructive — https://policylayer.com/tools/mcp-hands/dedupe-lines.md
- `delete` — Destructive — https://policylayer.com/tools/mcp-hands/delete.md
- `empty_dirs` — Destructive — https://policylayer.com/tools/mcp-hands/empty-dirs.md
- `firewall_remove_rule` — Destructive — https://policylayer.com/tools/mcp-hands/firewall-remove-rule.md
- `hosts_remove` — Destructive — https://policylayer.com/tools/mcp-hands/hosts-remove.md
- `hosts_reset` — Destructive — https://policylayer.com/tools/mcp-hands/hosts-reset.md
- `job_cancel` — Destructive — https://policylayer.com/tools/mcp-hands/job-cancel.md
- `memory_forget` — Destructive — https://policylayer.com/tools/mcp-hands/memory-forget.md
- `note_delete` — Destructive — https://policylayer.com/tools/mcp-hands/note-delete.md
- `outbox_clean` — Destructive — https://policylayer.com/tools/mcp-hands/outbox-clean.md
- `pdf_delete_pages` — Destructive — https://policylayer.com/tools/mcp-hands/pdf-delete-pages.md
- `portproxy_remove` — Destructive — https://policylayer.com/tools/mcp-hands/portproxy-remove.md
- `power_action` — Destructive — https://policylayer.com/tools/mcp-hands/power-action.md
- `prune_backups` — Destructive — https://policylayer.com/tools/mcp-hands/prune-backups.md
- `reg_delete_key` — Destructive — https://policylayer.com/tools/mcp-hands/reg-delete-key.md
- `reg_delete_value` — Destructive — https://policylayer.com/tools/mcp-hands/reg-delete-value.md
- `remind_cancel` — Destructive — https://policylayer.com/tools/mcp-hands/remind-cancel.md
- `sort_lines` — Destructive — https://policylayer.com/tools/mcp-hands/sort-lines.md
- `task_delete` — Destructive — https://policylayer.com/tools/mcp-hands/task-delete.md
- `todo_delete` — Destructive — https://policylayer.com/tools/mcp-hands/todo-delete.md
- `winget_installed` — Destructive — https://policylayer.com/tools/mcp-hands/winget-installed.md
- `winget_uninstall` — Destructive — https://policylayer.com/tools/mcp-hands/winget-uninstall.md
- `gif_from_images` — Execute — https://policylayer.com/tools/mcp-hands/gif-from-images.md
- `git_run` — Execute — https://policylayer.com/tools/mcp-hands/git-run.md
- `image_scale_2x` — Execute — https://policylayer.com/tools/mcp-hands/image-scale-2x.md
- `job_start` — Execute — https://policylayer.com/tools/mcp-hands/job-start.md
- `job_wait` — Execute — https://policylayer.com/tools/mcp-hands/job-wait.md
- `pptx_from_outline` — Execute — https://policylayer.com/tools/mcp-hands/pptx-from-outline.md
- `run_cmd` — Execute — https://policylayer.com/tools/mcp-hands/run-cmd.md
- …and 347 more: https://policylayer.com/tools/mcp-hands.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=mcp-hands · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/mcp-hands