sigmodx_hash_inputs · Sigmodx MCP: Risk & Policy

WHAT IT DOES

What sigmodx_hash_inputs does on Sigmodx

AI agents invoke sigmodx_hash_inputs to trigger actions in Sigmodx. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why sigmodx_hash_inputs needs a policy

Hashing is a computational/transformation operation that runs a function on input data. It doesn't retrieve stored data (Read), persist new records (Write), or delete anything. It executes a cryptographic function against a payload. The blast radius is low since hashing is one-way and non-destructive, but it is an active operation rather than a passive query.

From the tool's definition 'Hash an input payload using Sigmodx' — performs a cryptographic hashing operation on provided data

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

sigmodx_hash_inputs Rate-limited

sigmodx_hash_inputs stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "sigmodx_hash_inputs": {
      "limits": [
        {
          "counter": "sigmodx_hash_inputs_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Sigmodx, so you can run agents against it safely.

FAQ

Questions about sigmodx_hash_inputs

What does the sigmodx_hash_inputs tool do? +

Hash an input payload using Sigmodx. It is categorised as a Execute tool in the Sigmodx MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on sigmodx_hash_inputs? +

Register the Sigmodx MCP server in PolicyLayer and add a rule for sigmodx_hash_inputs: 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 Sigmodx. Nothing to install.

What risk level is sigmodx_hash_inputs? +

sigmodx_hash_inputs is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit sigmodx_hash_inputs? +

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

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

sigmodx_hash_inputs is provided by the Sigmodx MCP server (sigmodx/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.