# sandboxes_agents_harnesses_list

Read sandboxes.agents.harnesses.list through the Appaloft application operation catalog. Shared with CLI and HTTP/API.

Agent View of the PolicyLayer registry record for `sandboxes_agents_harnesses_list`. HTML page: https://policylayer.com/tools/appaloft-mcp/sandboxes-agents-harnesses-list

## Facts

- Tool: `sandboxes_agents_harnesses_list`
- Server: Appaloft (`@appaloft/mcp`) — https://policylayer.com/tools/appaloft-mcp.md
- Install: `npx -y @appaloft/mcp`
- Homepage: https://www.npmjs.com/package/@appaloft/mcp
- 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": "sandboxes_agents_harnesses_list",
    "arguments": {}
  }
}
```

## Why sandboxes_agents_harnesses_list is rated Low

Even though sandboxes_agents_harnesses_list 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 sandboxes_agents_harnesses_list to retrieve information from Appaloft 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 Appaloft:

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

## Other tools on Appaloft (427)

- `account_delete` — Destructive — https://policylayer.com/tools/appaloft-mcp/account-delete.md
- `account_sessions_revoke` — Destructive — https://policylayer.com/tools/appaloft-mcp/account-sessions-revoke.md
- `agent_adapters_uninstall` — Destructive — https://policylayer.com/tools/appaloft-mcp/agent-adapters-uninstall.md
- `agent_workspace_profiles_uninstall` — Destructive — https://policylayer.com/tools/appaloft-mcp/agent-workspace-profiles-uninstall.md
- `audit_events_archives_prune` — Destructive — https://policylayer.com/tools/appaloft-mcp/audit-events-archives-prune.md
- `audit_events_prune` — Destructive — https://policylayer.com/tools/appaloft-mcp/audit-events-prune.md
- `certificates_delete` — Destructive — https://policylayer.com/tools/appaloft-mcp/certificates-delete.md
- `certificates_revoke` — Destructive — https://policylayer.com/tools/appaloft-mcp/certificates-revoke.md
- `connections_revoke` — Destructive — https://policylayer.com/tools/appaloft-mcp/connections-revoke.md
- `control_plane_portability_artifacts_delete` — Destructive — https://policylayer.com/tools/appaloft-mcp/control-plane-portability-artifacts-delete.md
- `credentials_delete_ssh` — Destructive — https://policylayer.com/tools/appaloft-mcp/credentials-delete-ssh.md
- `dependency_resources_delete` — Destructive — https://policylayer.com/tools/appaloft-mcp/dependency-resources-delete.md
- `deployments_archive` — Destructive — https://policylayer.com/tools/appaloft-mcp/deployments-archive.md
- `deployments_prune` — Destructive — https://policylayer.com/tools/appaloft-mcp/deployments-prune.md
- `domain_bindings_delete` — Destructive — https://policylayer.com/tools/appaloft-mcp/domain-bindings-delete.md
- `domain_events_prune` — Destructive — https://policylayer.com/tools/appaloft-mcp/domain-events-prune.md
- `operator_work_prune` — Destructive — https://policylayer.com/tools/appaloft-mcp/operator-work-prune.md
- `organizations_delete` — Destructive — https://policylayer.com/tools/appaloft-mcp/organizations-delete.md
- `organizations_remove_member` — Destructive — https://policylayer.com/tools/appaloft-mcp/organizations-remove-member.md
- `preview_environments_delete` — Destructive — https://policylayer.com/tools/appaloft-mcp/preview-environments-delete.md
- `projects_delete` — Destructive — https://policylayer.com/tools/appaloft-mcp/projects-delete.md
- `provider_job_logs_prune` — Destructive — https://policylayer.com/tools/appaloft-mcp/provider-job-logs-prune.md
- `resources_archive` — Destructive — https://policylayer.com/tools/appaloft-mcp/resources-archive.md
- `resources_delete` — Destructive — https://policylayer.com/tools/appaloft-mcp/resources-delete.md
- `resources_detach_storage` — Destructive — https://policylayer.com/tools/appaloft-mcp/resources-detach-storage.md
- `resources_runtime_control_attempts_prune` — Destructive — https://policylayer.com/tools/appaloft-mcp/resources-runtime-control-attempts-prune.md
- `resources_runtime_log_archives_prune` — Destructive — https://policylayer.com/tools/appaloft-mcp/resources-runtime-log-archives-prune.md
- `resources_secrets_delete` — Destructive — https://policylayer.com/tools/appaloft-mcp/resources-secrets-delete.md
- `sandbox_credentials_revoke` — Destructive — https://policylayer.com/tools/appaloft-mcp/sandbox-credentials-revoke.md
- `sandbox_files_remove` — Destructive — https://policylayer.com/tools/appaloft-mcp/sandbox-files-remove.md
- …and 397 more: https://policylayer.com/tools/appaloft-mcp.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=appaloft-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/appaloft-mcp