# check_trust

A read tool on the AgentVeil Protocol MCP server.

Agent View of the PolicyLayer registry record for `check_trust`. HTML page: https://policylayer.com/tools/agentveil-protocol-agentveil-sdk/check-trust

## Facts

- Tool: `check_trust`
- Server: AgentVeil Protocol (`agentveil-protocol/agentveil-sdk`) — https://policylayer.com/tools/agentveil-protocol-agentveil-sdk.md
- Homepage: https://github.com/agentveil-protocol/agentveil-sdk
- Risk category: Read (Low risk)
- Registry record: grade A, 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": "check_trust",
    "arguments": {}
  }
}
```

## Why check_trust is rated Low

The tool is almost certainly a read operation that queries trust or reputation information about agents in the AgentVeil Protocol. Given the server's purpose (trust and reputation infrastructure) and the naming pattern of related tools, this appears to be a lookup/retrieval function. The empty description reduces confidence slightly, but contextual evidence strongly suggests read-only behavior.

From the tool's own definition: "Tool name 'check_trust' suggests retrieval of trust/reputation data; no description provided. Context from sibling tools ('check_avp_reputation', 'check_reputation', 'get_agent_info', 'get_attestations_received', 'get_audit_trail') indicates this server…"

## Use case

AI agents call check_trust to retrieve information from AgentVeil Protocol 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 AgentVeil Protocol:

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

## Other tools on AgentVeil Protocol (11)

- `should_delegate_to_agent` — Other — https://policylayer.com/tools/agentveil-protocol-agentveil-sdk/should-delegate-to-agent.md
- `check_avp_reputation` — Read — https://policylayer.com/tools/agentveil-protocol-agentveil-sdk/check-avp-reputation.md
- `check_reputation` — Read — https://policylayer.com/tools/agentveil-protocol-agentveil-sdk/check-reputation.md
- `get_agent_info` — Read — https://policylayer.com/tools/agentveil-protocol-agentveil-sdk/get-agent-info.md
- `get_attestations_received` — Read — https://policylayer.com/tools/agentveil-protocol-agentveil-sdk/get-attestations-received.md
- `get_audit_trail` — Read — https://policylayer.com/tools/agentveil-protocol-agentveil-sdk/get-audit-trail.md
- `get_protocol_stats` — Read — https://policylayer.com/tools/agentveil-protocol-agentveil-sdk/get-protocol-stats.md
- `search_agents` — Read — https://policylayer.com/tools/agentveil-protocol-agentveil-sdk/search-agents.md
- `search_avp_agents` — Read — https://policylayer.com/tools/agentveil-protocol-agentveil-sdk/search-avp-agents.md
- `verify_audit_chain` — Read — https://policylayer.com/tools/agentveil-protocol-agentveil-sdk/verify-audit-chain.md
- `log_avp_interaction` — Write — https://policylayer.com/tools/agentveil-protocol-agentveil-sdk/log-avp-interaction.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=agentveil-protocol-agentveil-sdk · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/agentveil-protocol-agentveil-sdk