editor on your machine open install
Get selected actors
See the actors currently selected in the viewport.
Editor desktop
What your agent can do in UEFN.
This page is the editor desktop. Filter the Fortnite library or the scene outliner to see the powers that build the island. One install. Public names only.
Viewport · Island
All tools
PIE
Device
Prop
Actor
On your machine (editor)
editor on your machine open install
Select actors
Select actors in the viewport, or add them to the selection.
editor on your machine open install
Focus selected
Frame the viewport on the selection — the F-key.
editor on your machine open install
Look at
Point the viewport at an actor or a spot on the island.
editor on your machine open install
Spawn from a class
Spawn an actor from a Fortnite / UE class into the island.
editor on your machine open install
Delete actors
Delete actors by name or path.
editor on your machine open install
Set actor properties
Set properties on an actor you placed.
editor on your machine open install
Inspect Verse editable
Client core. Classify a placed actor before binding a Verse @editable device field. A native Creative wrapper matches /CreativeCoreDevices/_Verse.<Name> or /CRD_<Name>/_Verse.<Name> (for example /CRD_Switch/_Verse.switch_device). A project class (/MyProject/_Verse.Verse-Scripts-...) and VerseDevice_C do not match. MyProject stands in for the open project. Playbook: get_skill('uefn-tool-contracts').
editor on your machine open install
Bind Verse editable
Client core. Bind an @editable device field to a placed actor. Accepts both native wrapper roots. An unmapped wrapper still needs expectedTargetClass. Will not clobber an existing binding. Subclass check, read-back, and save are unchanged. The Python relay workaround is no longer needed for CRD_* devices. Ships in the uefn-mcp release that includes #151. Playbook: get_skill('uefn-tool-contracts').
editor on your machine open install
Bind Verse editable array
Client core. Fill an @editable array of native refs ([]creative_prop, []trigger_device, []barrier_device) on a placed Verse device. verseComponentPath is the Verse component. expectedTargetClass is required. One item wrapper per target (savedActor), then SetDeviceProperty on the wrapper paths. force replaces a different non-empty array. append adds. Dry run writes nothing. Per-entry read-back. Same default save as the single-ref bind. Wrapper roots include /CreativeCoreDevices/_Verse, /CRD_<Name>/_Verse, and /<Plugin>/_Verse/VNI/<Module>.<Name>. Ships in the uefn-mcp release that includes #155. The tool wrapper has not been run on a live editor yet. Playbook: get_skill('uefn-tool-contracts').
editor on your machine open install
Viewport camera
Get or set the viewport camera — where you are looking, and from where.
editor on your machine open install
Asset library
Search, list, and inspect Fortnite and project assets.
editor on your machine open install
Extract pak icons
Client tool on the PC that has the game. Reads local paks and writes PNG icons for devices, characters, items, and props. dry_run lists paths and writes nothing. An optional upload is staff-only and is not required. Playbook: get_skill('uefn-asset-org').
editor on your machine open install
Session control
Play in creator. Start and stop the session on your machine.
editor on your machine open install
Session diagnostics
Client session toolset. Read runtime errors and session logs on your machine. A Launch Session rejection of candidate_handler_too_many_staged_files is reported as launchFailure, with the current count.
editor on your machine open install
Verse file budget
Client session toolset (enable_toolset('session')). Read-only count of staged .verse files. Returns count, budget (default 950), status ok, warn, or over, headroom, and the 10 largest folders. Does not raise the cook cap.
editor on your machine open install
Ping the editor
Check the editor is awake before you spawn, compile, or play.
editor on your machine open install
Compile · screenshot · place
Compile Verse, capture the viewport, and place a Fortnite device.
editor on your machine open install
Desktop screenshot
Capture the full desktop, Slate chrome included. Returns a shot id. Default downscale — pass image coordinates from that shot.
editor on your machine open install
Desktop click
Click on the desktop. Pass the shot and image coordinates from that capture.
editor on your machine open install
Desktop move
Move the pointer. Pass the shot and image coordinates.
editor on your machine open install
Desktop scroll
Scroll at a point on the desktop. Pass the shot and image coordinates.
editor on your machine open install
Desktop drag
Drag from one image point to another. Pass the shot with both coordinates.
editor on your machine open install
Desktop type
Type text into the focused editor field.
editor on your machine open install
Desktop key
Press a single key on the editor machine.
editor on your machine open install
Desktop hotkey
Press a key chord on the editor machine.
editor on your machine open install
Epic editor toolsets
Reach Epic's built-in UEFN MCP toolsets from any agent, including LAN sessions. Scene Graph entities, UMG widgets, and @editable wiring, plus the 43.00 toolsets after action=list (PCG, Profiling, Sequencer, MetaSound, IK Retargeter, Scene Capture, Curve Atlas, Player State, Prefab, Exec Python, classic devices). action=instructions, then action=list, then action=call. Playbook: get_skill('epic-valkyrie-mcp').
editor on your machine open install
Verse dependency graph
Client graph toolset (enable_toolset('graph')): parses your project's Verse on your PC into a local graph for search, impact, why-paths, cycles, layer rules and unreachable-under-policy checks, with a Graph / Audit panel. Heuristic, not compiler-verified: every edge is marked resolved, guessed, ambiguous or unknown. Nothing is uploaded. Playbook: get_skill('verse-dependency-audit').
editor on your machine open install
Project map brief
Learn-the-map brief at session start: Verse modules, Verse devices, and placed Verse devices. A placed device is a VerseDevice wrapper actor; the Verse class is the inner script instance, and @editable values are read from that instance. The reply caps device rows at 100 (max_device_rows); the saved brief keeps every row. classes_not_in_graph flags placed classes the indexed root does not declare. Details-panel device-to-device event bindings are not exposed.
editor on your machine open install
Unreal Engine editor toolsets
Reach Epic's Unreal MCP in Unreal Editor 5.8+ on the same PC (actors, lighting, materials, automation tests) from any agent, including LAN sessions.
editor on your machine open install
Editor dialogs
Client ui toolset. Lists modal windows that block the editor game thread, with id, severity, action, and screen rect. raise=true brings each one forward. A relay timeout also returns dialogs, hint, and dialogHint. Playbook: get_skill('uefn-editor-dialogs').
editor on your machine open install
Dismiss editor dialog
Client ui toolset. action=ok closes a known safe notice (Custom Material Detected) and checks it is gone. action=raise only brings the window forward. Refuses Save Content, Verse Build Errors, Verse Validation Errors, and unknown titles. Cannot tick Don't show this again.
Hosted (cloud)
tool hosted free
Verse knowledge search
Collection-aware search (api / howto / code / docs). epic_internal hits stay labeled.
tool hosted free
Verse API search
Name and meaning search over the live Verse / UEFN API surface.
tool hosted free
API symbol lookup
Full signature and source for the best-matching API symbol.
tool hosted free
Verify Verse API calls
Checks each Verse call against the live API for the uefn_version you pass. Stops invented APIs before a Verse check.
tool hosted free
Compile check (no editor)
The real Verse compiler front end in the cloud — pass or fail with line numbers in about ten seconds, from any client. Full island builds stay on the editor box.
tool hosted free
List playbooks
List hosted playbooks by id, title, tags, and when to use.
tool hosted free
Get a playbook
Open one hosted playbook and read its markdown.
tool hosted free
Search lore
Public LoreGUI docs plus Verse Island knowledge cards. Do not invent theme or GDD continuity.
tool hosted free
Get a lore entry
Fetch one allowlisted LoreGUI page or island knowledge card.
tool hosted free
List specialist templates
Roster of testing, performance, cloth, UI, Verse, scene, lore, and P4 templates. Not a runtime.
tool hosted free
Get a specialist template
Full prompt, success criteria, and tool allowlist for one specialist id.
tool hosted free
Write a design Doc pack
Structured GDD / runbook / theme / colors / assets / play loop / test plan markdown. Client saves it.
tool hosted pro
Push a level snapshot
Store a versioned island snapshot on Studio Sync. Pro and Studio plans.
tool hosted pro
List Studio snapshots
Browse snapshot metadata for one project. Org-scoped.
tool hosted pro
Get a Studio snapshot
Fetch one snapshot body by id.
tool hosted pro
List Studio runbooks
Portal-authored skills and runbooks for this project.
tool hosted pro
Get a Studio runbook
Fetch one portal-authored skill or runbook.
tool hosted pro
Save a Studio runbook
Create or replace a project skill or runbook in markdown.
tool hosted pro
List Studio Sync bundles
Browse versioned module packs for a Studio project.
tool hosted pro
Get a Studio Sync bundle
Fetch one bundle manifest and its version history.
tool hosted pro
Pack a Studio Sync bundle
Create the first version of a portable Verse or scene-graph pack. Self-contains into Content/<Module>/.
tool hosted pro
Install a Studio Sync bundle
Download the payload and agent.md install instructions.
tool hosted pro
Update a Studio Sync bundle
Publish a bumped semver after local edits.
tool hosted pro
Search Studio Sync Verse
Find Verse scripts in this studio that do X. ACL-scoped full-text search.
tool hosted pro
Search Studio Sync bundles
Search bundle text, paths, and changelogs. Optional org-wide scope.
tool hosted pro
List the org Studio Sync library
Bundles shared across projects in the org.
tool hosted free
My screenshots
List screenshots you uploaded, with public URLs and expiry.
tool hosted free
Delete a screenshot
Remove one of your screenshots and its public URL.
tool hosted free
Share a screenshot from chat
Upload a small screenshot from base64. Larger images POST raw bytes to /mcp-api/shares.
Planned · not available
integration planned pro
3D mesh generation
Text or image to a 3D mesh, with credentials hosted for you.
integration planned pro
Official Fortnite / UEFN API
Official Fortnite / UEFN API reads, scoped and rate-controlled.
integration planned pro
Discord team notifications
Send a note to your team channel when something important lands.
integration planned studio
GitHub check status
PR / check-run status for your team's GitHub workflow.