Add a marker to the current timeline at a specific frame.
AI agents use add_timeline_marker to create or update resources in DaVinci Resolve MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your DaVinci Resolve MCP Server environment.
This tool creates new data (a timeline marker) within a video editing project, which is a reversible modification typical of Write category operations. It has minimal blast radius as markers are non-destructive metadata that do not affect the actual video content, clips, or project integrity. The action is clearly creational rather than destructive, executable, or involving external operations.
From the tool's definition Tool name 'add_timeline_marker' and description 'Add a marker to the current timeline at a specific frame' indicate creation of metadata (a marker) that modifies the timeline state. Markers are reversible annotations that can be edited or deleted.
Documented attack patterns abuse exactly the kind of access add_timeline_marker gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and DaVinci Resolve MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for add_timeline_marker:
{
"version": "1",
"default": "deny",
"tools": {
"add_timeline_marker": {
"limits": [
{
"counter": "add_timeline_marker_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}add_timeline_marker 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.
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Add a marker to the current timeline at a specific frame. It is categorised as a Write tool in the DaVinci Resolve MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the DaVinci Resolve MCP Server MCP server in PolicyLayer and add a rule for add_timeline_marker: 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 DaVinci Resolve MCP Server. Nothing to install.
add_timeline_marker is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the add_timeline_marker 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.
Set action: deny in the PolicyLayer policy for add_timeline_marker. 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.
add_timeline_marker is provided by the DaVinci Resolve MCP Server MCP server (tooflex/davinci-resolve-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from DaVinci Resolve MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
32 DaVinci Resolve MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.