create_timeline_event

Create a timeline event on an incident

SERVERGitlab Mcp SOURCE@zereight/mcp-gitlab

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-zereight-gitlab-mcp/create-timeline-event.md

WHAT IT DOES

What create_timeline_event does on Gitlab Mcp

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

RISK

Why create_timeline_event is rated Medium

This tool creates new timeline events associated with an incident, which is a write operation that modifies incident records. It is reversible (timeline events can typically be edited or deleted), so it does not qualify as Destructive. It does not execute arbitrary code, trigger external operations, or move money.

From the tool's definition Tool name is 'create_timeline_event' and description states 'Create a timeline event on an incident', which is a create operation that modifies incident data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_timeline_event safely

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

create_timeline_event Rate-limited

create_timeline_event 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": {
    "create_timeline_event": {
      "limits": [
        {
          "counter": "create_timeline_event_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 Gitlab Mcp, apply this rule, and every create_timeline_event call is checked against it from then on.

FAQ

Questions about create_timeline_event

What does the create_timeline_event tool do? +

Create a timeline event on an incident. It is categorised as a Write tool in the Gitlab Mcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_timeline_event? +

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

What risk level is create_timeline_event? +

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

Can I rate-limit create_timeline_event? +

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

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

create_timeline_event is provided by the Gitlab MCP server (@zereight/mcp-gitlab). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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