# timeline_delete_marker_by_custom_data

Delete a timeline marker by custom data.

Agent View of the PolicyLayer registry record for `timeline_delete_marker_by_custom_data`. HTML page: https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/timeline-delete-marker-by-custom-data

## Facts

- Tool: `timeline_delete_marker_by_custom_data`
- Server: DaVinci Resolve MCP (`samuelgursky/davinci-resolve-mcp`) — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp.md
- Homepage: https://github.com/samuelgursky/davinci-resolve-mcp
- Risk category: Destructive (Critical risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Hidden

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "timeline_delete_marker_by_custom_data",
    "arguments": {}
  }
}
```

## Why timeline_delete_marker_by_custom_data is rated Critical

The tool permanently removes timeline markers, which are project metadata that cannot be automatically recovered. While the blast radius is scoped to marker metadata rather than media files themselves, deletion operations on project data are classified as Destructive.

From the tool's own definition: "Tool name contains 'delete' and description states 'Delete a timeline marker by custom data' - this is an irreversible deletion operation on timeline project data."

## Use case

AI agents call timeline_delete_marker_by_custom_data to permanently remove resources in DaVinci Resolve MCP, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

## Recommended policy (PolicyLayer)

Verdict: **Hidden**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches DaVinci Resolve MCP:

```json
{
  "version": "1",
  "default": "deny",
  "hide": [
    "timeline_delete_marker_by_custom_data"
  ]
}
```

## Other tools on DaVinci Resolve MCP (354)

- `archive_project` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/archive-project.md
- `clear_clip_flags` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/clear-clip-flags.md
- `clear_clip_transcription` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/clear-clip-transcription.md
- `clear_folder_transcription` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/clear-folder-transcription.md
- `clear_transcription` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/clear-transcription.md
- `close_project` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/close-project.md
- `delete_burn_in_preset` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/delete-burn-in-preset.md
- `delete_clip_marker_at_frame` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/delete-clip-marker-at-frame.md
- `delete_clip_marker_by_custom_data` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/delete-clip-marker-by-custom-data.md
- `delete_clip_markers_by_color` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/delete-clip-markers-by-color.md
- `delete_clip_mattes` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/delete-clip-mattes.md
- `delete_color_group` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/delete-color-group.md
- `delete_keyframe` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/delete-keyframe.md
- `delete_layout_preset_tool` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/delete-layout-preset-tool.md
- `delete_media_pool_clips` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/delete-media-pool-clips.md
- `delete_media_pool_folders` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/delete-media-pool-folders.md
- `delete_project` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/delete-project.md
- `delete_project_folder` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/delete-project-folder.md
- `delete_render_job` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/delete-render-job.md
- `delete_render_preset` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/delete-render-preset.md
- `delete_stills_from_album` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/delete-stills-from-album.md
- `delete_timelines_by_id` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/delete-timelines-by-id.md
- `delete_user_preferences_preset` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/delete-user-preferences-preset.md
- `folder_clear_transcription` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/folder-clear-transcription.md
- `folder_remove_motion_blur` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/folder-remove-motion-blur.md
- `graph_reset_all_grades` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/graph-reset-all-grades.md
- `quit_resolve` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/quit-resolve.md
- `ti_clear_flags` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/ti-clear-flags.md
- `ti_delete_fusion_comp` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/ti-delete-fusion-comp.md
- `ti_delete_marker_at_frame` — Destructive — https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp/ti-delete-marker-at-frame.md
- …and 324 more: https://policylayer.com/tools/samuelgursky-davinci-resolve-mcp.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=samuelgursky-davinci-resolve-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/samuelgursky-davinci-resolve-mcp