AI agents use append_to_timeline to create or update resources in DaVinci Resolve MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your DaVinci Resolve MCP environment.
This tool modifies a video project by adding clips or content to a timeline. While the empty description reduces confidence slightly, the name and server context clearly indicate a Write operation (modifies project state reversibly). It is not Destructive because appending is not irreversible.
From the tool's definition Tool name 'append_to_timeline' indicates appending/adding content to a video timeline in DaVinci Resolve. The description is empty, but the context—a video editing software MCP with sibling tools like 'add_clip_flag', 'add_keyframe',…
Documented attack patterns abuse exactly the kind of access append_to_timeline gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and DaVinci Resolve MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for append_to_timeline:
{
"version": "1",
"default": "deny",
"tools": {
"append_to_timeline": {
"limits": [
{
"counter": "append_to_timeline_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}append_to_timeline 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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append_to_timeline. It is categorised as a Write tool in the DaVinci Resolve MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the DaVinci Resolve MCP server in PolicyLayer and add a rule for append_to_timeline: 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. Nothing to install.
append_to_timeline 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 append_to_timeline 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 append_to_timeline. 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.
append_to_timeline is provided by the DaVinci Resolve MCP server (samuelgursky/davinci-resolve-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 369 DaVinci Resolve MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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369 DaVinci Resolve MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.