# meta-tools.describe

Describe a single Vee3 capability. Pass the MCP tool name (for example website-screenshots.capture) or capability id (for example website-screenshot). Use this after meta-tools.list_group_tools when you need parameter names, defaults, response fields, examples, and token cost before calling a tool Cost = 0 tokens.

Agent View of the PolicyLayer registry record for `meta-tools.describe`. HTML page: https://policylayer.com/tools/io-github-vee3io-vee3/meta-tools.describe

## Facts

- Tool: `meta-tools.describe`
- Server: Vee3 (`https://mcp.vee3.io/mcp`) — https://policylayer.com/tools/io-github-vee3io-vee3.md
- Homepage: https://github.com/Vee3io/vee3
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server auth posture: open
- Server rate-limited: no
- Parameters: 1 (1 required)
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `tool_name` | string | yes | MCP tool name (for example `x-twitter.create_post`) or capability id (for example `create-x-post`). |

Parameters from the server's own tool schema.

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

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "meta-tools.describe",
    "arguments": {
      "tool_name": "<tool_name>"
    }
  }
}
```

## Why meta-tools.describe is rated Low

This is a metadata/documentation retrieval tool that queries information about other tools' capabilities. It has no side effects, creates no changes, executes no code, and poses minimal risk. It is squarely in the Read category as it only retrieves and returns descriptive information.

From the tool's own definition: "Tool name and description indicate it 'Describe a single Vee3 capability' and retrieves 'parameter names, defaults, response fields, examples, and token cost' - purely informational retrieval with no data modification, deletion, or execution."

## Use case

AI agents call meta-tools.describe to retrieve information from Vee3 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 Vee3:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "meta-tools.describe": {}
  }
}
```

## Other tools on Vee3 (248)

- `clerk.delete_allowlist_identifier` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-allowlist-identifier.md
- `clerk.delete_api_key` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-api-key.md
- `clerk.delete_blocklist_identifier` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-blocklist-identifier.md
- `clerk.delete_domain` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-domain.md
- `clerk.delete_email_address` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-email-address.md
- `clerk.delete_enterprise_connection` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-enterprise-connection.md
- `clerk.delete_jwt_template` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-jwt-template.md
- `clerk.delete_machine` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-machine.md
- `clerk.delete_machine_scope` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-machine-scope.md
- `clerk.delete_oauth_application` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-oauth-application.md
- `clerk.delete_organization` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-organization.md
- `clerk.delete_organization_domain` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-organization-domain.md
- `clerk.delete_organization_membership` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-organization-membership.md
- `clerk.delete_organization_permission` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-organization-permission.md
- `clerk.delete_organization_role` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-organization-role.md
- `clerk.delete_phone_number` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-phone-number.md
- `clerk.delete_redirect_url` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-redirect-url.md
- `clerk.delete_svix_app` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-svix-app.md
- `clerk.delete_user` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-user.md
- `clerk.delete_user_backup_codes` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-user-backup-codes.md
- `clerk.delete_user_external_account` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-user-external-account.md
- `clerk.delete_user_passkey` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-user-passkey.md
- `clerk.delete_user_totp` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-user-totp.md
- `clerk.delete_user_web3_wallet` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-user-web3-wallet.md
- `clerk.delete_waitlist_entry` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.delete-waitlist-entry.md
- `clerk.revoke_actor_token` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.revoke-actor-token.md
- `clerk.revoke_admin_portal_link_token` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.revoke-admin-portal-link-token.md
- `clerk.revoke_api_key` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.revoke-api-key.md
- `clerk.revoke_invitation` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.revoke-invitation.md
- `clerk.revoke_m2m_token` — Destructive — https://policylayer.com/tools/io-github-vee3io-vee3/clerk.revoke-m2m-token.md
- …and 218 more: https://policylayer.com/tools/io-github-vee3io-vee3.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=io-github-vee3io-vee3 · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-vee3io-vee3