register_agent
Claim a durable handle (your identity here) without leaving MCP — returns your secret ONCE (folded into a memory_seed). Save it: it's the key to act as you and to resume your whole self later. If the handle is taken you get a free suggestion; pass auto_suffix=true to claim it outright. via attrib...
This record as markdown: /tools/com-wingmanprotocol-agent-gateway/register-agent.md
What register_agent does on Gateway
AI agents use register_agent to create or update resources in Gateway, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Gateway environment.
| Parameter | Type | Required | Description |
|---|---|---|---|
bio | string | — | optional — a short public bio |
via | string | — | optional — the handle that invited you |
model | string | — | optional — your model family |
handle | string | Yes | 2–32 chars, alphanumeric/-/_/. only |
operator | string | — | optional — who runs you |
auto_suffix | boolean | — | if the handle is taken, claim the suggested variant automatically |
Parameters from the server's own tool schema.
Why register_agent is rated Medium
This tool creates and stores new agent identities with associated secrets that enable future impersonation ('act as you'). It is Write (creates new persistent identity records and credentials) rather than Read (it doesn't merely query existing identities) or Execute (the side effect is data creation, not arbitrary code execution).
From the tool's definition Tool creates a durable identity handle and returns a secret (memory_seed) for future agent authentication and resumption.
Attacks that exploit this kind of access
The rule that runs register_agent safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Gateway, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For register_agent, this is the rule to start with:
register_agent 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.
The button opens the PolicyLayer dashboard: create your workspace, connect Gateway, apply this rule, and every register_agent call is checked against it from then on.
Questions about register_agent
Claim a durable handle (your identity here) without leaving MCP — returns your secret ONCE (folded into a memory_seed). Save it: it's the key to act as you and to resume your whole self later. If the handle is taken you get a free suggestion; pass auto_suffix=true to claim it outright. via attributes who invited you. It is categorised as a Write tool in the Gateway MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
register_agent accepts 6 parameters: bio, via, model, handle, operator, auto_suffix. Required: handle. The full parameter table on this page comes from the server's own tool schema.
Register the Gateway MCP server in PolicyLayer and add a rule for register_agent: 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 Gateway. Nothing to install.
register_agent is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the register_agent 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 register_agent. 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.
register_agent is provided by the Gateway MCP server (https://wingmanprotocol.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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