bulk_update_applications

THE RISK

Medium Risk

Why bulk_update_applications needs a policy

This is a Write operation because it updates (modifies) application records without deleting or destroying them. The update is reversible and does not execute arbitrary code. The 'bulk' nature and potential to affect many candidate records simultaneously elevates severity to 'high' due to the blast radius of a single API call impacting multiple applications in a critical business process (ATS).

From the tool's definition 'bulk_update_applications' - 'Update multiple applications in a single operation'. The tool modifies application data reversibly across multiple records.

Documented attack patterns abuse exactly the kind of access bulk_update_applications gives an agent:

POLICY

How to control bulk_update_applications

PolicyLayer is an MCP gateway — it sits between your AI agents and MCP Ashby Connector, and nothing reaches the server without passing your rules. This is the rule we recommend for bulk_update_applications:

policy.json

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

bulk_update_applications 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.

Create a free account and register MCP Ashby Connector — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

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EXPLORE

Related tools and policies

More MCP Ashby Connector tools

Write bulk_create_candidates Create multiple candidates in a single operation Write bulk_schedule_interviews Schedule multiple interviews in a single operation Write create_application Creates a new application Write create_candidate Creates a new candidate in Ashby Write create_interview Creates a new interview Write create_job Creates a new job posting Read get_pipeline_metrics Get pipeline metrics for jobs Read list_applications List applications with pagination and filtering

All 13 MCP Ashby Connector tools →

Write tools on other servers

M-Team MCP Server download_torrent YouTube MCP Server generate_video_title Android Forensics ADB MCP Server combine_reports 0xarchive web3_signup

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about bulk_update_applications

What does the bulk_update_applications tool do? +

Update multiple applications in a single operation. It is categorised as a Write tool in the MCP Ashby Connector MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on bulk_update_applications? +

Register the MCP Ashby Connector MCP server in PolicyLayer and add a rule for bulk_update_applications: 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 Ashby Connector. Nothing to install.

What risk level is bulk_update_applications? +

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

Can I rate-limit bulk_update_applications? +

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

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

bulk_update_applications is provided by the MCP Ashby Connector MCP server (thnico/mcp-ashby). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every MCP Ashby Connector tool call.

Start from MCP Ashby Connector, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →