verify_contacts
Explicit re-verify. Returns one row per requested chain: { chain, ok, anchorAddress?, version?, entryCount?, reason?, unsignedEntryCount? }. Useful for periodic integrity checks or after a suspected tamper event. Does NOT throw on per-chain failure — caller inspects the results array. Issue #428:...
This record as markdown: /tools/io-github-szhygulin-vaultpilot-mcp/verify-contacts.md
What verify_contacts does on VaultPilot MCP
AI agents call verify_contacts to retrieve information from VaultPilot MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
chain | string | — | If specified, only verifies that chain's blob. Otherwise verifies every populated chain. |
Parameters from the server's own tool schema.
Why verify_contacts is rated Low
This tool performs non-destructive verification and inspection of contact data. It returns status information about contacts across chains (EVM, TRON, Solana, BTC, LTC) without side effects. No data is created, modified, deleted, or financial operations are triggered.
From the tool's definition Tool returns verification status with `ok`, `anchorAddress`, `version`, `entryCount`, `reason`, `unsignedEntryCount` fields. Described as performing 'periodic integrity checks' and 'Does NOT throw on per-chain failure — caller inspects the results array'.
Attacks that exploit this kind of access
The rule that runs verify_contacts safely
PolicyLayer is an MCP gateway: it sits between your AI agents and VaultPilot MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For verify_contacts, this is the rule to start with:
verify_contacts is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect VaultPilot MCP, apply this rule, and every verify_contacts call is checked against it from then on.
Questions about verify_contacts
Explicit re-verify. Returns one row per requested chain: { chain, ok, anchorAddress?, version?, entryCount?, reason?, unsignedEntryCount? }. Useful for periodic integrity checks or after a suspected tamper event. Does NOT throw on per-chain failure — caller inspects the results array. Issue #428: unsignedEntryCount is the count of in-memory unsigned entries on this chain (omitted when zero). When a chain has only unsigned entries, ok: false, reason: "no signed entries on this chain (unsigned-only)", unsignedEntryCount: N so the agent surfaces the unsigned overlay rather than silently dropping it. In demo mode, returns a count of in-memory entries per chain with anchorAddress: "DEMO_ANCHOR". It is categorised as a Read tool in the VaultPilot MCP MCP Server, which means it retrieves data without modifying state.
verify_contacts accepts 1 parameter: chain. The full parameter table on this page comes from the server's own tool schema.
Register the VaultPilot MCP server in PolicyLayer and add a rule for verify_contacts: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches VaultPilot MCP. Nothing to install.
verify_contacts is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the verify_contacts rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for verify_contacts. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
verify_contacts is provided by the VaultPilot MCP server (vaultpilot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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