airbyte_update_source · Airbyte MCP: Risk & Policy

WHAT IT DOES

What airbyte_update_source does on Airbyte

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

WHY IT NEEDS A POLICY

Why airbyte_update_source needs a policy

The tool modifies an existing source configuration reversibly. While the description is empty (lowering confidence slightly), the tool name clearly indicates an update operation. Update operations are reversible modifications that fall into the Write category.

From the tool's definition Tool name is 'airbyte_update_source' which performs an update operation on a source configuration in Airbyte.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

airbyte_update_source Rate-limited

airbyte_update_source 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": {
    "airbyte_update_source": {
      "limits": [
        {
          "counter": "airbyte_update_source_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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

FAQ

Questions about airbyte_update_source

What does the airbyte_update_source tool do? +

airbyte_update_source. It is categorised as a Write tool in the Airbyte MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on airbyte_update_source? +

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

What risk level is airbyte_update_source? +

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

Can I rate-limit airbyte_update_source? +

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

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

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