Unity Editor Skills

Observe and control the Unity Editor without parsing scene YAML.

Operating Mode

• Approval：本模块 Mixed —— editor_get_changes / editor_get_selection / editor_get_context / editor_get_state / editor_get_tags / editor_get_layers 标 SkillMode.SemiAuto，可直接执行；其余 editor_select / editor_undo / editor_redo / editor_execute_menu 默认 FullAuto，Approval 模式下需 grant。
• Auto / Bypass：FullAuto 直接执行。
• 含 NeverInSemi 高危 skill：editor_play / editor_play_capture / editor_stop / editor_pause（标 MayEnterPlayMode = true）。这些在 Approval/Auto 下返 MODE_FORBIDDEN，仅 Bypass 或 Allowlist 命中可调。

DO NOT (common hallucinations):

• editor_run does not exist → use editor_play to enter play mode
• editor_compile / editor_recompile do not exist → use debug_force_recompile
• editor_save does not exist → use editor_execute_menu with menuPath "File/Save"
• editor_execute_menu requires exact menu path — typos cause silent failure

Routing:

• For compilation check → use debug module's debug_check_compilation
• For console errors → use debug module's debug_get_errors
• For scene save → scene_save (scene module) or editor_execute_menu menuPath="File/Save"
• When file watching reports changes, or the AI resumes after the user edited Unity → call editor_get_changes before reading .unity YAML
• If editor_get_changes.dropped=true → its 500-entry retention window was exceeded; rebuild context with scene_context / scene_diff

Skills Overview

Skills

editor_play

Enter play mode. Warning: any unsaved scene changes made during Play mode will be lost when exiting.

Returns: {success, mode, jobId} — mode="playing", jobId returned from AsyncJobService so callers can poll entering_play_mode completion.

editor_play_capture

Enter Play Mode, observe errors for durationSeconds (default 10, range 1–300), optionally capture the Game View, then exit. Returns a Job whose result includes healthy, error aggregates, stoppedEarly, and screenshotPath.

editor_stop

Exit play mode.

Returns: {success, mode} — mode="stopped".

editor_pause

Toggle pause state.

Returns: {success, paused} — paused is the new boolean state.

editor_select

Select a GameObject.

*One identifier required

editor_get_selection

Get currently selected objects.

Returns: {count, objects: [{name, instanceId}]}

editor_get_context

Get full editor context including selection, assets, and scene info.

Returns:

• selectedGameObjects: Objects in Hierarchy (instanceId, path, tag, layer)
• selectedAssets: Assets in Project window (GUID, path, type, isFolder)
• activeScene: Current scene info (name, path, isDirty)
• focusedWindow: Name of focused editor window
• isPlaying, isCompiling: Editor state

editor_get_changes

Read the persistent change journal at Library/UnitySkills/editor_changes.jsonl. It captures scene object/component/property summaries plus imported, deleted, and moved asset paths across Domain Reloads. It never parses or returns raw .unity YAML.

Returns: {hasChanges, cursor, oldestSeq, dropped, truncated, changes}. Save cursor for the next call. dropped=true means older changes fell outside the 500-entry journal, so rebuild full scene context.

editor_undo

Undo the last action.

editor_redo

Redo the last undone action.

editor_get_state

Get current editor state.

Returns: {isPlaying, isPaused, isCompiling, timeSinceStartup, unityVersion, platform}

editor_execute_menu

Execute a menu command.

Common Menu Paths:

editor_get_tags

Get all available tags.

Returns: {tags: [string]}

editor_get_layers

Get all available layers.

Returns: {layers: [{index, name}]}

Pause On Error

Pause-on-error is provided by the console module, not the editor module.

Use console_set_pause_on_error from console/SKILL.md.

Example Usage

import unity_skills

# Check editor state before operations
state = unity_skills.call_skill("editor_get_state")
if state['isCompiling']:
    print("Wait for compilation to finish")

# On resume or after file-watch notification, inspect semantic changes first.
changes = unity_skills.call_skill("editor_get_changes", since=last_cursor)
last_cursor = changes["cursor"]

# Get full context (useful for understanding current state)
context = unity_skills.call_skill("editor_get_context", includeComponents=True)
for obj in context['selectedGameObjects']:
    print(f"Selected: {obj['name']} (ID: {obj['instanceId']})")

# Select and operate on object
unity_skills.call_skill("editor_select", name="Player")
selection = unity_skills.call_skill("editor_get_selection")

# Safe experimentation with undo
unity_skills.call_skill("gameobject_delete", name="TestObject")
unity_skills.call_skill("editor_undo")  # Restore if needed

# Execute menu command
unity_skills.call_skill("editor_execute_menu", menuPath="File/Save")

Best Practices

1. Check editor state before play mode operations
2. Don't modify scene during play mode (changes lost)
3. Use undo for safe experimentation
4. On resume, call editor_get_changes before reading scene files
5. Use editor_get_context to get instanceId for batch operations
6. Menu commands must match exact paths

Exact Signatures

Exact names, parameters, defaults, and returns are defined by GET /skills/schema or unity_skills.get_skill_schema(), not by this file.