gns_roll_epoch

SERVERMcp Agentcore SOURCEhttps://packagesmcp-perception-production.up.railway.app/mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/com-geiant-mcp-agentcore/gns-roll-epoch.md

WHAT IT DOES

What gns_roll_epoch does on Mcp Agentcore

AI agents use gns_roll_epoch to create or update resources in Mcp Agentcore, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mcp Agentcore environment.

RISK

Why gns_roll_epoch is rated Medium

This tool aggregates and seals pending audit/compliance records into a new immutable epoch with a Merkle root hash. It creates a new data structure (a sealed epoch) from existing pending breadcrumbs — this is a Write operation as it commits and creates a new record.

From the tool's definition 'Roll all pending breadcrumbs into a new sealed epoch with a Merkle root' and 'produce a tamper-evident compliance snapshot'

Risk signalsAdmin/system-level operation

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs gns_roll_epoch safely

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

gns_roll_epoch Rate-limited

gns_roll_epoch 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": {
    "gns_roll_epoch": {
      "limits": [
        {
          "counter": "gns_roll_epoch_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 Mcp Agentcore, apply this rule, and every gns_roll_epoch call is checked against it from then on.

FAQ

Questions about gns_roll_epoch

What does the gns_roll_epoch tool do? +

Roll all pending breadcrumbs into a new sealed epoch with a Merkle root. Returns { epoch_index, merkle_root, block_count, epoch_hash }. Call this at the end of a session to produce a tamper-evident compliance snapshot. It is categorised as a Write tool in the Mcp Agentcore MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on gns_roll_epoch? +

Register the Mcp Agentcore MCP server in PolicyLayer and add a rule for gns_roll_epoch: 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 Mcp Agentcore. Nothing to install.

What risk level is gns_roll_epoch? +

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

Can I rate-limit gns_roll_epoch? +

Yes. Add a rate_limit block to the gns_roll_epoch 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 gns_roll_epoch completely? +

Set action: deny in the PolicyLayer policy for gns_roll_epoch. 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 gns_roll_epoch? +

gns_roll_epoch is provided by the Mcp Agentcore MCP server (https://packagesmcp-perception-production.up.railway.app/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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