Wulfram Forge MCP

Private v157 adds generate_base_layout.request.placement.expandRoles for the original 15 creative styles. It preserves recipe units, adds structures toward saved composition limits, retains those limits and requires sampled access checks. No saved limits or an unsupported reserved-area style rejects. This is expansion only; favorite placement and contraction are unsupported. Source/package verification passed; native expansion acceptance is pending.

Private v156 supports optional compositionPolicy (compare-only by default or retain) in generate_base_layout.request and the JSON object in place_formation_favorite.favoriteRequestJson. Retain saves and enforces the active destination layout's composition limits on the new layout; conflicting candidate limits reject without mutation. Use the same policy in preview and Apply. Generation first supported this field in v155; favorite placement requires v156. Older hosts reject the new field. Source/package checks pass; native retention acceptance is tracked in the editor's formation retention handoff.

A local MCP server for the Wulfram Forge Windows desktop editor. The server package includes its map serialization modules, dependency lockfile, and native test fixtures. It can start from its own checkout, including the nested tools/mcp/MapEditerMCP layout.

Requirements: Node.js 22.13 or newer, npm, and a compatible MCP-enabled Wulfram Forge Windows editor for live map operations. Building the editor also requires the .NET 9 SDK and WebView2 runtime.

Install and verify

Run from this repository's root:

npm ci
npm test
npm start

npm start runs the STDIO server and waits for an MCP client. Configure your client's command as the absolute path to Node, with arguments --experimental-strip-types and the absolute path to this repository's server.mjs. Both server.mjs and MCPserver.mjs are required; preserve capitalization.

npm test verifies the MCP handshake and ten tool definitions without connecting to an editor, compares all eight ZIP entries against the native fixture, and runs six isolated Windows pipe regressions for concurrency, deadlines, startup gaps, disconnects, rejection recovery, and malformed responses. The pipe regressions require Windows PowerShell and skip on other platforms. These checks do not establish live editing or gameplay behavior.

Related MCP server: Coret Agent Kit

Editor integration

The server is self-contained; the native editor is a separate application. Keep the editor's McpEditorHost.cs, MainForm.cs, lib/mcp-commands.ts, lib/use-mcp-bridge.ts, and editor UI integration together in a compatible editor checkout.

For the build, launcher, and native acceptance scripts, set the editor location when it is not an ancestor of this package:

$env:WULFRAM_FORGE_ROOT = 'C:\path\to\wulfram-mapeditor'

When this repository is under tools/mcp/MapEditerMCP, the scripts find the ancestor editor automatically. An explicitly supplied invalid path fails with an actionable error.

Install the editor's npm dependencies in its checkout first. Then run these scripts from this repository, checking each succeeds before continuing:

.\build-editor.ps1
.\launch-editor.ps1
npm run test:desktop

The builder uses the editor's local .dotnet-sdk/dotnet.exe when present, otherwise dotnet on PATH. It creates dist/desktop/mcp-v0.1.0/WulframForge.exe in the editor checkout. The launcher enables the native bridge using a separate persistent profile. Native acceptance uses an isolated profile and the two files in fixtures/three-lane-citadel/.

Tools and operation

The server exposes list_editor_sessions, get_editor_state, inspect_map, inspect_routes, validate_map, edit_entities, edit_terrain, edit_terrain_protection, apply_landform, apply_lane, capture_view, undo, save_copy, and export_map.

apply_landform requires desktop v70 or newer, an explicit placementMode (protected or manual), current revision and stamp settings. Required settings are preset, x/y, radius, aspect, rotation, amplitude, edgePower and mirror. Optional independent length/width, seed, naturalness, roughness, bend, blend, textureName, textureCoverage and shapeVersion: "natural-v2" match the editor. Presets are ridge, valley, crater, saddle, mesa and basin. Coordinates/heights are world units; rotation is degrees. Protected mode requires authored route data. Manual mode skips that route mask but still preserves structure reserves and saved height rules. Applying invalidates cached analysis, rejects new editor validation errors, and records one Undo step. Mesa and basin add a constant offset in the center; they do not flatten uneven existing terrain. Older editors reject saved libraries containing these new shapes. Use preview placement in the GUI for visual review; the MCP operation commits the stamp directly.

edit_terrain_protection requires the rebuilt private desktop v67 or newer. Inspect first, then supply sessionId, expectedRevision, activeLayoutId, and edit: either { "operation": "add", "name": "Protected ridge", "x": 1000, "y": 1000, "width": 500, "height": 300 } or { "operation": "remove", "id": "ID from inspection" }. Coordinates are world units. The tool changes one height rule in the active layout and creates one Undo step; it preserves other rules, buildings, and terrain. Protection covers shared terrain across layouts, while texture painting remains available. inspect_map.terrainProtection lists rules grouped by layout, so a rule in another layout remains visible. It does not implicitly use the GUI brush selection. Older hosts reject this new command; updating the Node server alone does not add desktop support.

Discover and select the intended session, inspect its map, then use its current revision for edits. Entity IDs are map-specific. Successful edit batches use the editor's undo history; invalid or stale requests reject. After a timeout or disconnect, inspect again before retrying a write.

Calls to the same session are serialized. The request budget includes queue waiting, and an absolute deadline travels with the command to the native host and renderer. Rebuild the compatible editor after updating McpEditorHost.cs to obtain this deadline protection; older binaries do not enforce the new envelope field. Only connection failures before submission are retried automatically. A command that already started before its deadline can still complete after a disconnect, so re-inspection remains necessary.

Native acceptance also checks concurrent reads, delayed renderer recovery, and short client deadlines. It records the executable SHA-256 in its report. Run the build first so the result covers current source.

The server uses STDIO and a current-user Windows named pipe. The editor bridge must be explicitly enabled. Session credentials are local and are not returned by discovery. Exports are new files under this package's outputs/mcp-exports/; existing files are never overwritten. Exporting a copy does not mark the editor saved.

Included files and exclusions

lib/ contains the shared serialization source required for ZIP exports; see its README for provenance and update guidance. fixtures/ contains the JSON project and matching ZIP required by native acceptance. tests/ contains standalone package checks.

Dependencies, generated builds, exports, session descriptors, profiles, and credentials remain excluded from Git. Run npm ci after cloning. Do not add session credentials to this repository.

Troubleshooting

• Startup import error: restore the complete repository, including lib/, and run npm ci.

• No editor sessions: launch a compatible MCP-enabled editor and open a map.

• Missing editor checkout: set WULFRAM_FORGE_ROOT to its directory.

• Missing native executable: run the editor build script after installing its dependencies and .NET SDK.

• Stale revision or uncertain write outcome: inspect the current map before retrying.

This is a Windows desktop integration; starting the server does not launch the editor. Included source and game fixtures retain their existing rights; inclusion does not grant additional redistribution permission.

apply_lane requires desktop v71 or newer and the current revision. Supply lane with 2-32 world-coordinate points, width (80-2000), shoulder (40-2000 per side), floorHeight (-5000-5000), operation (cut or cut-fill), mirror and placementMode (manual or protected). The shared editor operation blends rounded shoulders, preserves structures and saved height rules, invalidates cached analysis and creates one Undo step. Cut mode leaves ground below the floor unchanged. Protected mode additionally requires authored route data. MCP commits directly; use the GUI Lane tool for a visual preview. Width must also span at least two terrain grid steps, and the full lane footprint must fit inside the map.

inspect_routes (desktop v72+) reads the committed active map using explicit vehicleWidth (20-400 world units). It returns automatic service routes and authored corridors, ordered points, lengths, saved widths, width-exceeds-reservation flags and sampled clearance markers. It includes all teams at authored endpoints; automatic routes treat the destination pad as drive-on. This read leaves map, revision, Undo and camera unchanged. GUI candidate previews are inspected through the candidate inspector, not this committed-map MCP read. Geometry and clearance do not certify gameplay.

Entrance routing (desktop v73+): inspect_entrances returns the active layout ID, current policy (or null), and available corridor IDs with ordered points. set_entrance_routing requires sessionId, expectedRevision, activeLayoutId and policy. Supply {version:1,bindings:[{team:1,corridorId:"...",direction:"forward"}]} (at most one binding per team), or null to restore automatic approaches. Direction is battlefield-to-base; reverse traverses the saved points backward. Explicit bindings are checked against current terrain/buildings before one Undo step. inspect_routes then returns bound service routes with entranceCorridorId. Later edits can invalidate access; inspect again. This is not game collision proof.

Offset favorites with entrance policies export as library version 4 (reservation schema 3). Older libraries remain readable; older editors reject version 4. Policies for other corridor families currently require whole-map preservation instead of favorite capture.

The optional Wulfram Forge Launcher selects a local editor EXE and starts it with its existing environment. It does not change MCP commands or automatically update/register the server. After changing editor builds, use fresh session discovery; old session IDs do not transfer between processes.

Creative base layouts — desktop v74+

generate_base_layout uses the editor's creative generator. Supply sessionId, current expectedRevision, explicit previewOnly, and request containing activeLayoutId, a new layoutId, style, seed and placement. Placement requires size (small/standard/large/massive), world-unit x, y, radius, and degree rotation; optional controls are targetCount (0 automatic or 6–120), checkAccess, terrainAware, entranceDegrees, and Offset-only offsetArrangement (classic/wide-front/deep-court/split-wings).

Preview with previewOnly:true returns the candidate layout without editing or changing history. Apply with false, the same settings and a current revision adds and activates a new layout in one Undo step. Existing layouts remain stored; their buildings are not merged into the new layout. Duplicate IDs and stale revisions reject. The generator checks fit/power; requested access checks are sampled editor evidence, not driving or combat proof. This command requires the rebuilt v74 host and updated server package together.

Authored base capture and placement (v82+)

The rebuilt v82 host and updated server expose capture_authored_base and place_authored_base. Capture requires sessionId, expectedRevision, activeLayoutId and sourceFrame {origin:[x,y,z],yaw}; it returns packageJson without editing. Placement requires the same session/revision, packageJson, explicit previewOnly and authoredRequest {activeLayoutId,layoutId,frame,terrainMode}. Use a new layoutId, yaw in radians, and terrainMode preserve or conform. Preview does not change history; apply adds a new layout with one Undo step. Existing layouts remain intact. Rectangular rules require 90-degree delta rotations; starships retain source altitude/rotation. Editor support checks are not game collision proof. Requires the rebuilt host, not only this Node package.

Saved authored library (desktop v86)

inspect_authored_library returns the versioned library and exact raw storage value. Supply the current editor revision to all library tools. edit_authored_library also requires expectedLibraryRaw (null for absent storage) and libraryEditJson: save {operation:"save",entry:{id,name,base}}, rename {operation:"rename",id,name}, remove {operation:"remove",id}, or restore {operation:"restore",entries}. The returned before.entries can be restored using the returned raw as the next expected value. This changes library storage only, never map Undo. Save rejects duplicate IDs/names. Reload after errors; never automatically replay an uncertain write.

recover_authored_library takes the inspected damaged raw value, backs up exact bytes and resets to a validated empty envelope. Healthy libraries reject recovery. GUI controls use the same storage code. Libraries belong to the current editor profile; load/export an authored JSON file to transfer an entry to another device. Native transport size limits still apply to large library responses.

Whole authored-library portability (desktop v87)

GUI: Saved authored bases > Export authored library writes the complete versioned collection. Import authored library shows new/skipped counts; Apply merges, Cancel leaves storage unchanged, and library Undo restores the prior collection. Same-ID identical content is skipped even if JSON key order differs. Changed content under the same ID and case-insensitive name conflicts reject the whole merge. Resolve conflicts at the source; saving as a new copy gives a new ID. Limits remain 50 entries and 2 MB.

MCP: edit_authored_library accepts libraryEditJson with {operation:"import",library:<exported envelope>}. Set previewOnly:true to validate without writing. The server dispatches a separate preview_authored_library native action, so v86 rejects preview rather than ignoring a new flag and committing. Use the original exact raw storage value to apply; preview does not reserve or lock storage. inspect_authored_library.library is the exportable envelope. Library operations remain separate from map Undo.

Service Courtyard review candidate (private v89)

The rebuilt private v89 host accepts style: "service-courtyard" through generate_base_layout. Automatic per-team counts are 10/15/21/33 for small/standard/large/massive. Target fitting preserves required roles; infeasible budgets reject. Placement retains six court/mouth reservations, paired terrain support, and sampled 80-unit through-route checks even when optional checkAccess is false. Preview and Apply use the same shared generator. Older hosts do not gain this capability from a server-file update.

This is an MCP-accessible review candidate, not an admitted visual-library card. Native generation and JSON round-trip evidence do not establish GUI catalog, portable-library, original-model visual or game collision acceptance. Keep the current session and revision guards; inspect preview before Apply.

Courtyard favorite portability is newer source work than private v89: reservation schema 4 requires base-library envelope 5 and recomputes destination passage clearance. It requires a later rebuilt host; v89 native generation evidence does not prove portable favorite support.

Private v91 promotes Service Courtyard into Creative after the editor-family admission review. Native GUI/MCP generation, portable favorite reuse and four-size ZIP reopening pass. Recipe and reservation schemas are unchanged from v90.1; gameplay remains unverified.

Experimental Broken Ring

generate_base_layout accepts style: "broken-ring" with the existing placement schema in private desktop v92 or newer. All four sizes preserve ten paired reservations and a versioned plan; use a radius of3000 for an initial preview. Map size, terrain, power, paired support and final site associations can still reject a placement. Preview before applying with a fresh revision. Sampled routes do not establish pad-entry or gameplay collision.

The v93 candidate adds portable favorites using reservation version5 and library envelope6; earlier desktop builds cannot read that format. Native v93 portability acceptance is tracked in the editor's docs/BROKEN_RING_DESIGN.md. Edited reserved geometry still requires a whole-map save. No new MCP tool is required: the command delegates to the shared editor generator, while existing library controls handle favorite storage.

The next private candidate generates Broken Ring recipe v2: seed-dependent horizontal/vertical stretch, shoulder spans and shifted openings. Use a 3300-unit placement radius for the largest candidates. Reservation version5/library envelope6 now dispatch explicitly by recipe version: existing v1 favorites keep their geometry, unknown versions reject, and v93 cannot read v2 favorites. This is shared generator/validation behavior through the existing MCP command; native v2 acceptance is tracked separately in BROKEN_RING_DESIGN.md.

The v95 source candidate generates recipe v3 with a96u service-pad center margin beyond neighboring model-bound edges. Final shared placement and favorite reuse require the wider sampled automatic approaches even when optional access checks are off. V1/v2 favorites retain their recipes; v94 cannot read v3. Plan validation tolerates only1e-9u numeric reconstruction roundoff between runtimes and preserves stored coordinates. Native v95 proof is tracked separately; no new MCP command is required.

The v96 presentation candidate promotes Broken Ring to Creative as one reviewed family. The generator command/style and recipev3 remain unchanged. See docs/BROKEN_RING_GUIDE.md for sizes, budgets, placement and version compatibility; rebuilt GUI handoff verification is required before the promotion is complete.

Valley Pockets and portable formation favorites

Private desktop v99 supports Valley Pockets generation, exact counts and portable favorite capture/reuse. The v96 installer does not include Valley Pockets. V97.1 supports default counts only; v98 adds expanded counts but lacks favorite commands.

generate_base_layout accepts style: "valley-pockets". It adds powered side yards while retaining current buildings and saved constraints in a new layout. Set targetCount to 0 for the size minimum (10/15/20/30) or an exact higher number of newly added structures per team, up to 120. Additional defenses must fit the existing yards; infeasible requests reject without mutation. Custom entrance directions and Offset arrangements are unsupported.

capture_formation_favorite requires sessionId, expectedRevision, activeLayoutId and favoriteId. It returns packageJson containing a versioned portable library; it is read-only and does not edit personal storage. Valley capture verifies original generated buildings and passage reservations; edits that cannot be represented require a whole-map save.

place_formation_favorite requires sessionId, expectedRevision, packageJson, favoriteRequestJson and explicit previewOnly. The request JSON contains activeLayoutId, a fresh layoutId, favoriteId and placement {size,x,y,rotation,radius}, with optional checkAccess, terrainAware and targetCount. Valley favorites retain their saved count and yard arrangement. Reuse checks destination terrain, power, buildings and constraints. Preview returns the candidate without mutation; Apply activates a new layout in one Undo step. GUI library management handles personal storage and version-7 import/export.

V99 native evidence covers capture/reuse, GUI library export/import, restart, larger-map transformed coordinates, retained buildings and Undo. Additional same-map size/terrain cases pass. These are editor checks, not vehicle collision or gameplay proof. Valley Pockets remains Experimental pending family admission review.

Multiple entrances — source integration for v101

set_entrance_routing accepts legacy version 1 or {version:2,sockets:[{id,name,team,mouthCorridorId,mouthDirection,approach?:{corridorId,direction}}]}. Up to three sockets per team; IDs and same-team corridor roles must be distinct. Mouths point from lane-facing endpoint to court; an approach must end at that first mouth point. Omitted approaches remain unbound. Inspection labels automatic connectors separately.

previewOnly:true uses the dedicated native preview_entrance_routing action so older hosts reject it instead of accidentally committing a preview. Omit or set false to Apply one Undo step. Revision checks remain mandatory. Version-2 authored-base packages preserve these policies and transformed reservations; old fixed formation-favorite envelopes cannot represent them and must use authored-base export instead. The v100 accepted executable does not contain this source integration; rebuilt v101 native acceptance is pending.

Three-Lane Anchor (v103 source integration)

The existing generate_base_layout tool accepts style three-lane-anchor on hosts containing this feature. It preserves existing buildings in a new layout and creates six explicitly unbound exits. Counts are 0 (size default) or 15/21/30/42 for small/standard/large/massive. Placement radius contains full models and reservations. Access checks are mandatory; yard positions are fixed and terrain is validated, not adapted. Existing entrance policies reject to preserve their bindings. Use authored-base or whole-map export for reuse; formation favorites cannot retain these rules. Native v103 acceptance is pending.

Three-Lane Anchor count extension (v105 source): 0 selects the size minimum (15/21/30/42). Integer targets from that minimum through120 add defenses across the existing three powered yards. Impossible fits reject without mutation; model scale and court geometry stay fixed. Default counts retain recipe v1; expanded counts use v2. Native v105 expanded-count, authored-library reuse and explicit file-reopening verification passed. V106 promotes the card to Creative; rebuilt catalog and authored-library lifecycle verification passed. Geometry and existing MCP operations are unchanged.

Curved lanes (v107 source)

apply_lane now accepts optional lane.bend from -1 to 1 with exactly two endpoints. Zero or omitted bend retains straight/polyline behavior. Positive and negative values bend to opposite sides; at full bend the midpoint moves sideways by half the endpoint distance. Width and shoulders follow the curve. GUI Lane tool uses the same operation and adds a Curve / bend slider. Curves require a rebuilt v107+ host. Private v107.1 passed GUI preview/Apply/Undo and real standalone MCP curved placement, stale revision rejection and Undo. No new bridge action or native allowlist entry is needed.

Editable lane paths (v108 source)

The GUI now exposes draggable endpoints, a bend handle, keyboard point nudging, and a Path points section for coordinates and inserting/removing turns. These controls edit only the proposal until Apply. MCP already supplies the same result through apply_lane.points (2-32 points) and optional bend; no new command or transport change is needed. Nonzero bend requires two endpoints. Private v108.1 native path-control and standalone MCP checks passed. GUI final three-point Apply matched the edited proposal and shared MCP terrain result.

Editor brush profile (v109 source)

edit_terrain also accepts brush: {profile:"editor-v1", tool, x, y, radius, strength, shape, falloff, targetHeight?, texture?, selection?}. Tools are sculpt, lower, level, stamp (Set height), smooth, and paint; shapes are round/square/diamond and falloffs soft/linear/hard. Radius is 25-600 world units and strength 1-100. Selection is an optional {x,y,width,height} rectangle covering the brush interpolation support.

This is one sample of the GUI brush algorithm. A dragged GUI stroke can contain many samples; each MCP request is one Undo step. level without targetHeight samples the original center for that request. To reproduce a flatten stroke, retain its first target across subsequent requests. Explicit level targets are bounded to +/-100000; Set height requires +/-5000. Unselected height brushes follow the existing editor rule of pinning the outer terrain ring to zero; a selection preserves imported edge heights. Paint uses the same deterministic coverage and texture-corner rules as the GUI.

The profile preserves authored entity transforms and uses the GUI saved constraints; it does not invoke legacy resnapping or legacy new-validation-error rejection. A no-change MCP request rejects without committing. The old operation/value/mirror form retains its prior behavior. Native host v109+ is required; schema/server updates alone do not update an older EXE. V109 native standalone MCP passed all 54 tool/shape/falloff cases against the shared helper, including selected footprints, full-state preservation and Undo. Actual GUI selection/protection also passed; this is not an independent 54-case GUI driving matrix.

Route elevation (v111)

inspect_routes adds routes[].elevation: sampled centerline distance, position, height, signed preceding-interval grade, cumulative ascent/descent and sampled maximum grades. evidence is sampled-terrain-only; it is not craft motion or passability. No request schema changes. Detailed samples share a 20,000-sample response budget (10,001 per route maximum); an unavailable profile returns error and no partial samples while other route summaries remain. Requires desktop v111+. Native graph/MCP and complete read-only preservation checks passed; this remains terrain analysis, not craft simulation.

Temporary inspection paths (v112+)

inspect_routes accepts optional points: 2-32 finite X/Y pairs inside the map. Supplied points replace saved routes for this read only; endpoint buildings remain obstructions. No corridor, GUI sketch, map revision or Undo is created. Requires desktop v112+; v112.1 passed native points/rejection and complete inspection-state preservation. Omit points for older hosts.

Experimental run_craft_trial

Private desktop v113.2 passed scoped native GUI/MCP acceptance; v115 adds the viewport collision hull. Requires a configured WULFRAM_CRAFT_TRIAL_EXE and WULFRAM_CRAFT_COLLISION_DIR, current session/revision, craft tank/scout, initialSpeed0/40 and exactly two eastbound points on an empty terrain layout. Returns shared timed pose data and target/time-limit outcome with unverified-reconstruction fidelity. Source changes reject stale results. Not game-verified passability; solver/assets are not bundled in the developer ZIP.

Private v114 adds GUI Play/Pause/Replay of run_craft_trial's existing timed poses. The MCP result schema is unchanged. See docs/CRAFT_TRIAL_V113.md in the editor source for scoped native receipts and remaining restrictions. Solver and collision paths still require local configuration.

Private v115 adds optional collisionMesh: { vertices, triangles } to run_craft_trial results when the configured solver supplies its collision hull. The GUI renders that geometry at the recorded pose and provides camera focus. Older solver output remains valid without a mesh. The v115 native receipt and exact build hashes are recorded in the editor source at docs/CRAFT_TRIAL_V113.md; this is still unverified reconstructed physics, with the same eastbound/empty-terrain restrictions.

Terrain sampling — v118

sample_terrain requires sessionId, current expectedRevision, and finite world x/y inside the terrain. Returns Z, packed cell coordinates/index, texture ID/name, authored layers and texture evidence. It shares the GUI eyedropper reader and does not change the project, history or UI tool settings. Blended cells select the nearest authored corner; missing tags return no texture. Rebuild the desktop host to v118+ for this command.

Experimental Distributed Depot — v117.1+

generate_base_layout accepts style: "distributed-depot" with fixed size counts 11/19/25/36 per team, targetCount omitted/0, terrainAware omitted/false, no entranceDegrees or Offset arrangement. Existing buildings and layouts are retained; previewOnly remains explicit and apply creates one Undo step. The library card is Experimental. Save the whole map; favorite capture rejects Depot service records until portable support exists. Service records are placement-time evidence requiring reinspection after edits.

Local game testing (desktop v119.1+)

start_game_test (current revision required), game_test_status, and stop_game_test export and launch the open map using an extracted Wulf-Portable client/server folder. Configure through Tools > Test in game or launch-time WULFRAM_PORTABLE_ROOT. Start returns job status; poll for completion and errors. Never automatically replay a timed-out start. Stop is available after staging and only targets this editor's processes. Sessions are retained on disk. Running processes do not establish player connection or successful gameplay.

Desktop v120+ adds powerRules, powerComparison and comparisonRevision to game_test_status. Only the server's configured power/backup radii are exposed. The comparison uses current-map validator thresholds and labels configuration-only evidence. Running tests retain launch-time values; idle status reads the selected runtime. No map settings are applied and matching values are not gameplay proof.

Desktop v121+ authored-base version 3 preserves saved repair/refuel service paths, including Distributed Depot paths, through capture_authored_base and place_authored_base. Destination placement remaps pad IDs, transforms routes and checks access with bounded work. Saved authored-library tools retain the same package. Version 1/2 packages remain supported. This does not make ordinary formation favorites service-aware or continuously update routes after manual edits.

Desktop v122 adds inspect_service_routes(sessionId) and reconnect_service_route(sessionId, expectedRevision, activeLayoutId, padId). Inspection is read-only; reconnect changes only the final point after sampled access checks and commits one Undo. Both generic and original Depot records are supported. There are 31 tools. These are editor checks, not game driving proof.

Desktop v123 inspect_map includes authoringProblems for the active layout, including saved service-path diagnostics. The tool remains read-only; 31 tools unchanged.

Desktop v124 adds edit_service_route(sessionId, expectedRevision, activeLayoutId, padId, points, previewOnly). Supply 2–128 ordered world XY points; existing width/binding are retained. Preview validates without mutation; Apply records one Undo. There are 32 tools.

Desktop v125 adds a GUI-only draft path overlay. MCP continues using edit_service_route for shared validation/commit; no map format or tool count change (32).

Desktop v126.1 adds GUI camera focus for draft service paths. Camera-only: existing edit_service_route remains unchanged; 32 tools.

Private v132 game-test status also reports serverAddress, serverProcessId and clientProcessId. Launch selects a free loopback address (.1 through .32) on TCP/UDP2627 and verifies owned endpoint processes before starting the client. Existing local servers stay running; Stop affects only this editor's test tree. See the editor docs/GAME_ENDPOINT_V132.md for native evidence and limitations.

District move/rotation (desktop v134+)

Use transform_district with sessionId, expectedRevision, explicit previewOnly, and districtTransform: {activeLayoutId, entityIds, dx, dy, degrees, clearance}. Supply 1–500 unique existing building IDs, world-unit XY offsets, rotation in degrees about the selected mean center, and clearance from 0 to 2 units. Teams, IDs and unselected records are retained. The live editor uses the same asset fitting and saved constraints as its viewport handles. Read-only preview returns the selected candidate entities and validation issues. Apply recomputes on the expected revision and records one Undo step; never replay an uncertain write automatically.

The basic v134 form does not duplicate, mirror or align. Neither version remaps teams or moves authored paths. It does not impose extra power/collision guarantees: inspect the returned issues. Altitude/rotation-locked structures retain their restrictions. The new desktop host is required; installing only these Node files does not upgrade an older editor.

Desktop v135.1 adds optional mirror: "x" | "y", arrange: "align-x" | "align-y" | "space-x" | "space-y", and duplicateIds: string[] inside districtTransform. Each duplicate ID corresponds to the entityIds entry at the same index, regardless of project storage order. IDs must be unique and unused in every layout; provide the same IDs and revision to Preview and Apply for an identical candidate. Copies contain building data, not new named districts or copied connection rules. Alignment and distribution require zero XY/rotation and no mirror/copies; spacing needs at least three selected buildings. Mirroring retains team assignments and reflects headings. All operations preserve saved constraints and create one Undo step on Apply.

District arrangement preview (desktop v143+)

Use preview_district_arrangement with sessionId, expectedRevision, activeLayoutId, explicit previewOnly, arrangementSeed, arrangementDistance, optional teamPolicy, optional arrangementFilter, and optional optionIndex for Apply. Filters may name districtIds or roles from mixed, command, services, power, defense, and concealment. Preview returns up to three deterministic candidates with moved building records and failure reasons while leaving the map unchanged. Apply recomputes the same search against the expected revision, applies optionIndex from that result, preserves fixed and locked districts, and records one Undo step.

This command moves existing eligible saved districts only. It does not create role-budget solutions, rearrange buildings inside a district, alter authored routes, or prove power/collision/gameplay balance.

Named district records (desktop v136+)

inspect_map returns districts and districtError. An unreadable saved collection returns districts: null plus an error while retaining the map and other authoring diagnostics; it is not silently treated as an empty library.

Use edit_district with sessionId, expectedRevision, activeLayoutId, explicit previewOnly, and districtEdit. Supported forms are create with a district {id,name,entityIds,role?,variation?}, update with {id,changes:{name?,entityIds?,role?,variation?}}, lock with {id,locked:true|false}, and remove with {id}; each includes its operation discriminator. IDs are supplied by the caller and existing IDs are discoverable through inspection. Creation allows at most 100 records per layout and 500 unique existing building members per record. Updates retain unknown saved fields.

Only explicit lock with locked:false unlocks a record. Locked membership changes/removal reject; locked names and descriptive roles follow the GUI policy. Relationship rules remain enforced and are never deleted to make an edit pass. Removing a district removes its record, not its buildings. Unchanged orphan membership can be retained while renaming or explicitly unlocking an old record. Preview returns candidate records without mutation; Apply records one Undo step.

Role contraction (requires a rebuilt host)

The generate_base_layout tool accepts request.placement.contractRoles=true for the original 15 Creative styles. It shrinks a new recipe to saved role limits, retaining all power cells, core services and nearby gun cover at original gun positions. Other service pads may be removed. Saved limits and sampled access checks remain mandatory. Do not combine with expandRoles; reserved-area families reject this flag. Bounded search failure is not an infeasibility proof. Source support is present; private v167 and older hosts do not implement this option yet.

Routine native tests without foreground windows

With the private v171.1 host or a later verified compatible build, test-desktop.mjs defaults to background operation. Set WULFRAM_MCP_TEST_EXE to that executable and keep its matching background-test-capability.json beside it. The runner checks the executable hash before launch; an older host without the record is rejected before it opens. Background mode uses an isolated profile and an off-screen, non-activating WebView2 window. Native folder pickers, publication and game launch are unavailable in this mode. Ordinary interactive editor launches are unchanged.

WULFRAM_ALLOW_FOREGROUND_TEST=1 opts into visible native testing and must only be used during an agreed foreground test window. Background map-operation tests do not prove foreground pointer/focus, accessibility or gameplay behavior.

Connected-yard source work: authored-base package version 4 adds validated road graphs to existing capture/place operations. This requires a newly rebuilt graph-capable editor; background host v171.1 predates it. No graph-authoring command is exposed yet. Versions 1–3 remain supported.

Source graph-edit interface: edit_base_route_graphs takes activeLayoutId, expectedRevision, explicit previewOnly and graphEdit (upsert a strict graph or remove one team). inspect_map reports routeGraphs/routeGraphError. It requires the new graph-edit desktop host; v171.1 predates it. Preview does not change map/history; Apply/removal use normal map Undo. Physical access and gameplay remain separate from topology.