wallet_a2bPublishMcp

SERVERBitcoin SV MCP Server SOURCEb-open-io/bsv-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/b-open-io-bsv-mcp/wallet-a2bpublishmcp.md

WHAT IT DOES

What wallet_a2bPublishMcp does on Bitcoin SV MCP Server

AI agents use wallet_a2bPublishMcp to create or update resources in Bitcoin SV MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Bitcoin SV MCP Server environment.

RISK

Why wallet_a2bPublishMcp is rated Medium

While publishing is technically a write operation (creates/modifies data reversibly in the sense that new records are added), the immutable nature of blockchain inscriptions and the permanent financial commitment required to write to the BSV blockchain elevate this beyond a simple write.

From the tool's definition Publishes data on-chain via Ordinal inscription creating a permanent record. Description explicitly states 'Publish an MCP tool configuration record on-chain' and 'creates a permanent, immutable' inscription.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs wallet_a2bPublishMcp safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Bitcoin SV MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For wallet_a2bPublishMcp, this is the rule to start with:

wallet_a2bPublishMcp Rate-limited

wallet_a2bPublishMcp stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "wallet_a2bPublishMcp": {
      "limits": [
        {
          "counter": "wallet_a2bpublishmcp_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Bitcoin SV MCP Server, apply this rule, and every wallet_a2bPublishMcp call is checked against it from then on.

FAQ

Questions about wallet_a2bPublishMcp

What does the wallet_a2bPublishMcp tool do? +

Publish an MCP tool configuration record on-chain via Ordinal inscription. This creates a permanent, immutable, and discoverable tool definition that can be accessed by other MCP servers. The tool is published as a JSON inscription with metadata and optional digital signatures for authenticity verification. It is categorised as a Write tool in the Bitcoin SV MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on wallet_a2bPublishMcp? +

Register the Bitcoin SV MCP Server MCP server in PolicyLayer and add a rule for wallet_a2bPublishMcp: 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 Bitcoin SV MCP Server. Nothing to install.

What risk level is wallet_a2bPublishMcp? +

wallet_a2bPublishMcp is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit wallet_a2bPublishMcp? +

Yes. Add a rate_limit block to the wallet_a2bPublishMcp 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.

How do I block wallet_a2bPublishMcp completely? +

Set action: deny in the PolicyLayer policy for wallet_a2bPublishMcp. 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.

What MCP server provides wallet_a2bPublishMcp? +

wallet_a2bPublishMcp is provided by the Bitcoin SV MCP Server MCP server (b-open-io/bsv-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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