diff --git a/.claude/skills/unity-mcp-skill/SKILL.md b/.claude/skills/unity-mcp-skill/SKILL.md
index 1c63b4de1..7c41a7fda 100644
--- a/.claude/skills/unity-mcp-skill/SKILL.md
+++ b/.claude/skills/unity-mcp-skill/SKILL.md
@@ -191,6 +191,7 @@ uri="file:///full/path/to/file.cs"
 | **Testing** | `run_tests`, `get_test_job` | Unity Test Framework |
 | **Batch** | `batch_execute` | Parallel/bulk operations |
 | **Camera** | `manage_camera` | Camera management (Unity Camera + Cinemachine). **Tier 1** (always available): create, target, lens, priority, list, screenshot. **Tier 2** (requires `com.unity.cinemachine`): brain, body/aim/noise pipeline, extensions, blending, force/release. 7 presets: follow, third_person, freelook, dolly, static, top_down, side_scroller. Resource: `mcpforunity://scene/cameras`. Use `ping` to check Cinemachine availability. See [tools-reference.md](references/tools-reference.md#camera-tools). |
+| **Animation** | `manage_animation`, `manage_sprite` | Animator control, clips and controllers. **2D sprite sheets**: `manage_sprite(action="get_info")` returns a PNG or JPEG sheet as an image to count the grid from, then `full_setup` slices it and builds clips and a controller; clip names decide the states (idle, walk/run, attack-type triggers). Off by default over HTTP: `manage_tools(action="activate", group="animation")`. |
 | **Graphics** | `manage_graphics` | Rendering and post-processing management. 33 actions across 5 groups: **Volume** (create/configure volumes and effects, URP/HDRP), **Bake** (lightmaps, light probes, reflection probes, Edit mode only), **Stats** (draw calls, batches, memory), **Pipeline** (quality levels, pipeline settings), **Features** (URP renderer features: add, remove, toggle, reorder). Resources: `mcpforunity://scene/volumes`, `mcpforunity://rendering/stats`, `mcpforunity://pipeline/renderer-features`. Use `ping` to check pipeline status. See [tools-reference.md](references/tools-reference.md#graphics-tools). |
 | **Packages** | `manage_packages` | Install, remove, search, and manage Unity packages and scoped registries. Query actions: list installed, search registry, get info, ping, poll status. Mutating actions: add/remove packages, embed for editing, add/remove scoped registries, force resolve. Validates identifiers, warns on git URLs, checks dependents before removal (`force=true` to override). See [tools-reference.md](references/tools-reference.md#package-tools). |
 | **ProBuilder** | `manage_probuilder` | 3D modeling, mesh editing, complex geometry. **When `com.unity.probuilder` is installed, prefer ProBuilder shapes over primitive GameObjects** for editable geometry, multi-material faces, or complex shapes. Supports 12 shape types, face/edge/vertex editing, smoothing, and per-face materials. See [ProBuilder Guide](references/probuilder-guide.md). |
diff --git a/MCPForUnity/Editor/Tools/Sprite2D/SpriteControllerBuilder.cs b/MCPForUnity/Editor/Tools/Sprite2D/SpriteControllerBuilder.cs
index 0ca9c84de..65f10c4d3 100644
--- a/MCPForUnity/Editor/Tools/Sprite2D/SpriteControllerBuilder.cs
+++ b/MCPForUnity/Editor/Tools/Sprite2D/SpriteControllerBuilder.cs
@@ -128,6 +128,8 @@ internal static (string path, int stateCount) BuildController(
                 return default;
             }
             var rootSM = controller.layers[0].stateMachine;
+            // Every transition below gets duration 0: sprite keys are object references, which
+            // cannot blend, so a blend time would only delay the visible sprite change.
 
             // ── Parameters ──────────────────────────────────────────────────
 
@@ -147,14 +149,20 @@ internal static (string path, int stateCount) BuildController(
 
             // ── Idle state ────────────────────────────────────────────────────
 
-            var idlePair = entries.FirstOrDefault(e => e.entry.Category == SpriteAnimCategory.Idle);
+            var idlePairs = entries.Where(e => e.entry.Category == SpriteAnimCategory.Idle).ToList();
             AnimatorState idleState = null;
-            if (idlePair.clip != null)
+            if (idlePairs.Count > 0)
             {
                 idleState = rootSM.AddState("Idle");
-                idleState.motion = idlePair.clip;
+                idleState.motion = idlePairs[0].clip;
                 rootSM.defaultState = idleState;
             }
+            // There is one Idle state, so a second idle clip is left out of the controller.
+            foreach (var extra in idlePairs.Skip(1))
+                diagnostics.AddWarning("IDLE_CLIP_UNUSED",
+                    $"Clip '{extra.entry.ClipName}' is also an idle clip, and the one Idle state plays '{idlePairs[0].entry.ClipName}', so '{extra.entry.ClipName}' got no state.",
+                    "Rename it to include an action word such as attack, jump or hurt, and neither idle nor stand, then rebuild with overwrite=true.",
+                    "Put it in its own controller.");
 
             // ── Locomotion ────────────────────────────────────────────────────
 
@@ -172,9 +180,11 @@ internal static (string path, int stateCount) BuildController(
                         var t1 = idleState.AddTransition(locoState);
                         t1.AddCondition(AnimatorConditionMode.Greater, 0.1f, "Speed");
                         t1.hasExitTime = false;
+                        t1.duration = 0f;
                         var t2 = locoState.AddTransition(idleState);
                         t2.AddCondition(AnimatorConditionMode.Less, 0.1f, "Speed");
                         t2.hasExitTime = false;
+                        t2.duration = 0f;
                     }
                 }
                 else
@@ -198,9 +208,11 @@ internal static (string path, int stateCount) BuildController(
                         var t1 = idleState.AddTransition(blendState);
                         t1.AddCondition(AnimatorConditionMode.Greater, 0.1f, "Speed");
                         t1.hasExitTime = false;
+                        t1.duration = 0f;
                         var t2 = blendState.AddTransition(idleState);
                         t2.AddCondition(AnimatorConditionMode.Less, 0.1f, "Speed");
                         t2.hasExitTime = false;
+                        t2.duration = 0f;
                     }
                 }
             }
@@ -212,6 +224,10 @@ internal static (string path, int stateCount) BuildController(
                 e.entry.Category == SpriteAnimCategory.Jump   ||
                 e.entry.Category == SpriteAnimCategory.Object).ToList();
 
+            // Trigger -> the clip whose state it enters. Two Any State transitions on one trigger
+            // always resolve to the same one, so the second could never fire and is not built;
+            // its clip keeps a state, with its exit, for a script to play.
+            var triggerOwners = new Dictionary<string, string>();
             foreach (var pair in triggerPairs)
             {
                 var state = rootSM.AddState(pair.entry.ClipName);
@@ -219,24 +235,36 @@ internal static (string path, int stateCount) BuildController(
 
                 string trigger = pair.entry.TriggerName ?? pair.entry.ClipName;
 
-                foreach (var existingState in rootSM.states.Select(s => s.state))
+                if (triggerOwners.TryGetValue(trigger, out string owner))
                 {
-                    if (existingState == state) continue;
-                    var tr = existingState.AddTransition(state);
+                    diagnostics.AddWarning("TRIGGER_SHARED",
+                        $"Clips '{owner}' and '{pair.entry.ClipName}' share the trigger '{trigger}', which plays '{owner}': no transition leads to '{pair.entry.ClipName}', so it plays only from a script.",
+                        "Give each clip its own action word (attack, slash and punch are three different triggers), then rebuild with overwrite=true.");
+                }
+                else
+                {
+                    triggerOwners.Add(trigger, pair.entry.ClipName);
+                    var tr = rootSM.AddAnyStateTransition(state);
                     tr.AddCondition(AnimatorConditionMode.If, 0, trigger);
                     tr.hasExitTime = false;
+                    tr.duration = 0f;
+                    // On, a repeated trigger restarts the clip. Off, Unity would leave that trigger
+                    // set, and it would replay the state as soon as the Animator left it.
+                    tr.canTransitionToSelf = true;
                 }
 
                 // A one-shot state hands control back to idle, else locomotion. With
                 // neither, the default is another one-shot, and exiting into it would
-                // just chain one stuck state into the next.
+                // just chain one stuck state into the next. A death gets no exit and holds
+                // its last frame; a trigger the game fires still leaves it, from Any State.
                 var exitTarget = idleState ?? locomotionState;
-                if (exitTarget != null && !pair.entry.Loop)
+                if (exitTarget != null && !pair.entry.Loop && !pair.entry.Terminal)
                 {
                     var exitTr = state.AddTransition(exitTarget);
                     exitTr.hasExitTime = true;
                     exitTr.exitTime     = 1f;
                     exitTr.hasFixedDuration = false;
+                    exitTr.duration     = 0f;
                 }
             }
 
@@ -248,6 +276,10 @@ internal static (string path, int stateCount) BuildController(
                 state.motion = pair.clip;
                 if (rootSM.defaultState == null)
                     rootSM.defaultState = state;
+                if (rootSM.defaultState != state)
+                    diagnostics.AddWarning("STATE_UNREACHABLE",
+                        $"Clip '{pair.entry.ClipName}' matches no action word, so no transition leads to its state: it plays only from a script, or after you rename the clip to an action word.",
+                        "Rename the clip to include an action word such as attack, jump or hurt, then rebuild with overwrite=true.");
             }
 
             EditorUtility.SetDirty(controller);
diff --git a/MCPForUnity/Editor/Tools/Sprite2D/SpriteFullSetup.cs b/MCPForUnity/Editor/Tools/Sprite2D/SpriteFullSetup.cs
index d1e87ca07..8be02d0df 100644
--- a/MCPForUnity/Editor/Tools/Sprite2D/SpriteFullSetup.cs
+++ b/MCPForUnity/Editor/Tools/Sprite2D/SpriteFullSetup.cs
@@ -57,6 +57,13 @@ public static object Run(JObject @params, SpriteDiagnosticBuilder diagnostics)
             bool overwrite = ParamCoercion.CoerceBool(@params["overwrite"], false);
 
             var clips = SpriteClipBuilder.CreateClips(path, clipsToken, outputDir, overwrite, diagnostics);
+            // A repeated run skips every clip, and the controller step then failed with "No valid
+            // clips loaded.", which named neither the cause nor the way past it.
+            if (clips.Count == 0 && diagnostics.Build().Count(d => d.code == "CLIP_EXISTS") == clipsToken.Count)
+                diagnostics.AddError("ALL_CLIPS_EXIST",
+                    "Every requested clip already exists, so no clip was written and full_setup stopped before the controller step.",
+                    "Set overwrite=true to replace the clips and the controller.",
+                    "Call setup_controller with the existing .anim paths, which the CLIP_EXISTS warnings name, and overwrite=true if the controller already exists.");
             if (diagnostics.HasErrors)
                 return Stop("setup_clips", diagnostics);
 
diff --git a/MCPForUnity/Editor/Tools/Sprite2D/SpriteImportSetup.cs b/MCPForUnity/Editor/Tools/Sprite2D/SpriteImportSetup.cs
index 7994573f5..788857848 100644
--- a/MCPForUnity/Editor/Tools/Sprite2D/SpriteImportSetup.cs
+++ b/MCPForUnity/Editor/Tools/Sprite2D/SpriteImportSetup.cs
@@ -184,6 +184,9 @@ public ImporterSnapshot(TextureImporter importer)
                 filterMode       = importer.filterMode;
             }
 
+            /// <summary>The frame names the sheet had before this call, in sheet order.</summary>
+            public string[] FrameNames => spritesheet.Select(s => s.name).ToArray();
+
             public void Restore(TextureImporter importer)
             {
                 bool changed = false;
@@ -234,6 +237,24 @@ public static object SliceSheet(JObject @params, SpriteDiagnosticBuilder diagnos
             if (!rowsGiven && frameH <= 0)
                 rows = 1;
 
+            // Point unless asked: it keeps pixel art sharp, and it was the only filter slice_sheet
+            // set before this was a parameter. A switch rather than Enum.TryParse, which would
+            // also take "7" or "Bilinear,Trilinear", neither of them a filter.
+            FilterMode filterMode = FilterMode.Point;
+            JToken filterToken = @params["filter_mode"];
+            if (filterToken != null && filterToken.Type != JTokenType.Null)
+            {
+                switch (filterToken.ToString().ToLowerInvariant())
+                {
+                    case "point":     filterMode = FilterMode.Point; break;
+                    case "bilinear":  filterMode = FilterMode.Bilinear; break;
+                    case "trilinear": filterMode = FilterMode.Trilinear; break;
+                    default:
+                        return diagnostics.Fail("BAD_PARAM",
+                            $"'filter_mode' must be point, bilinear or trilinear; got '{filterToken}'.");
+                }
+            }
+
             // Measure only once imported as a sprite sheet: a Default-type import rescales a
             // non-power-of-two sheet (96px to 128px) and the trailing frames then land outside
             // the real texture, where Unity drops them silently - measured on 6000.4.4f1, a
@@ -257,7 +278,7 @@ public static object SliceSheet(JObject @params, SpriteDiagnosticBuilder diagnos
                     EditorUtility.SetDirty(importer);
                     importer.SaveAndReimport();
                 }
-                return SliceConverted(@params, diagnostics, path, importer, snapshot, cols, rows, frameW, frameH);
+                return SliceConverted(@params, diagnostics, path, importer, snapshot, cols, rows, frameW, frameH, filterMode);
             }
             catch
             {
@@ -270,7 +291,7 @@ public static object SliceSheet(JObject @params, SpriteDiagnosticBuilder diagnos
 
         private static object SliceConverted(JObject @params, SpriteDiagnosticBuilder diagnostics, string path,
                                              TextureImporter importer, ImporterSnapshot snapshot,
-                                             int cols, int rows, int frameW, int frameH)
+                                             int cols, int rows, int frameW, int frameH, FilterMode filterMode)
         {
             var texture = AssetDatabase.LoadAssetAtPath<Texture2D>(path);
             if (texture == null)
@@ -357,7 +378,7 @@ private static object SliceConverted(JObject @params, SpriteDiagnosticBuilder di
 
             importer.spriteImportMode = SpriteImportMode.Multiple;
             importer.spritesheet      = metas;
-            importer.filterMode       = FilterMode.Point; // pixel-perfect default
+            importer.filterMode       = filterMode;
             // Assigning spritesheet on an already-Multiple importer does not mark it dirty, so
             // SaveAndReimport would restore the old grid - measured, a second slice did nothing.
             EditorUtility.SetDirty(importer);
@@ -380,6 +401,24 @@ private static object SliceConverted(JObject @params, SpriteDiagnosticBuilder di
                     "Confirm the texture's import settings allow sprite generation");
             }
 
+            // A sprite's ID follows its name, so a re-slice keeps only the frames whose names the
+            // new grid reuses. Measured on 2021.3.45f2: a clip of all eight frames of a 4x2 sheet
+            // had six of them missing after a 2x1 re-slice, and the response said nothing;
+            // slicing 4x2 again brought all eight back. After the generation check, because a
+            // refusal restores the old frames and the warning would then be false.
+            string[] before = snapshot.FrameNames;
+            string[] removed = before.Except(metas.Select(m => m.name)).ToArray();
+            if (removed.Length > 0)
+            {
+                const int MaxNamesListed = 10;
+                string names = string.Join(", ", removed.Take(MaxNamesListed))
+                             + (removed.Length > MaxNamesListed ? $" and {removed.Length - MaxNamesListed} more" : "");
+                diagnostics.AddWarning("SLICE_REMOVED_FRAMES",
+                    $"This slice removed {removed.Length} of the {before.Length} frames the sheet had ({names}); animation clips that used them lose those frames.",
+                    "If the frames are still needed, slice again with the previous grid and base_name; clips pick them up again by name",
+                    "Otherwise rebuild the clips that used them: setup_clips or full_setup, with overwrite=true");
+            }
+
             return new
             {
                 success      = true,
diff --git a/MCPForUnity/Editor/Tools/Sprite2D/SpriteNamingDetector.cs b/MCPForUnity/Editor/Tools/Sprite2D/SpriteNamingDetector.cs
index 736d61c14..2febc9f23 100644
--- a/MCPForUnity/Editor/Tools/Sprite2D/SpriteNamingDetector.cs
+++ b/MCPForUnity/Editor/Tools/Sprite2D/SpriteNamingDetector.cs
@@ -19,6 +19,7 @@ internal class SpriteAnimEntry
         public bool Loop;
         public string TriggerName;
         public float BlendValue; // Position on the 1D blend tree: walk=1, run=2.
+        public bool Terminal;    // A death: its one-shot state gets no exit and holds its last frame.
     }
 
     internal static class SpriteNamingDetector
@@ -39,6 +40,10 @@ private static void Categorize(string name, SpriteAnimEntry entry)
         {
             var words = Words(name);
 
+            // Whichever word picks the trigger: 'death_fall' falls on 'Fall' and is still a
+            // death, and an exit back to idle would stand the character up again.
+            entry.Terminal = Has(words, "die", "death");
+
             if (Has(words, "idle", "stand"))
             { entry.Category = SpriteAnimCategory.Idle; return; }
 
diff --git a/README.md b/README.md
index 10afbd7d1..8a487f0d5 100644
--- a/README.md
+++ b/README.md
@@ -41,7 +41,7 @@ Full history: [Release Notes](https://coplaydev.github.io/unity-mcp/releases).
 
 ## What it does
 
-Control the Unity Editor in natural language from any MCP client — create scenes & GameObjects, edit C# scripts, manage assets, run tests, profile, and build. 48 focused MCP tool entrypoints, any client, free & MIT.
+Control the Unity Editor in natural language from any MCP client — create scenes & GameObjects, edit C# scripts, manage assets, run tests, profile, and build. 50 focused MCP tool entrypoints, any client, free & MIT.
 
 **[Browse the full tool catalog →](https://coplaydev.github.io/unity-mcp/reference/tools/)**
 
diff --git a/Server/src/cli/CLI_USAGE_GUIDE.md b/Server/src/cli/CLI_USAGE_GUIDE.md
index cba9a9321..fe330a061 100644
--- a/Server/src/cli/CLI_USAGE_GUIDE.md
+++ b/Server/src/cli/CLI_USAGE_GUIDE.md
@@ -816,6 +816,9 @@ unity-mcp sprite info "Assets/Sprites/Hero.png"
 # Slice into a grid: --cols/--rows, or --frame-width/--frame-height
 unity-mcp sprite slice "Assets/Sprites/Hero.png" --cols 6 --rows 4
 
+# High-resolution art: --filter-mode bilinear or trilinear (the default, point, suits pixel art)
+unity-mcp sprite slice "Assets/Sprites/Painted.png" --cols 8 --filter-mode bilinear
+
 # Clips from the slices, then a controller from the clips
 unity-mcp sprite setup-clips "Assets/Sprites/Hero.png" --clips '[{"name": "walk", "start_frame": 0, "end_frame": 5}]'
 unity-mcp sprite setup-controller "Assets/Animators/Hero.controller" --clips '[{"name": "walk", "path": "Assets/Sprites/walk.anim"}]'
diff --git a/Server/src/cli/commands/sprite.py b/Server/src/cli/commands/sprite.py
index 5d6582578..d0a645c8a 100644
--- a/Server/src/cli/commands/sprite.py
+++ b/Server/src/cli/commands/sprite.py
@@ -58,11 +58,16 @@ def info(path: str, page_size: Optional[int], cursor: Optional[int]):
 @click.option("--frame-width", type=int, default=None, help="Frame width in pixels; alternative to --cols.")
 @click.option("--frame-height", type=int, default=None, help="Frame height in pixels; alternative to --rows.")
 @click.option("--base-name", default=None, help="Base name for the frames (default: texture file name).")
+@click.option("--filter-mode", type=click.Choice(["point", "bilinear", "trilinear"]), default=None,
+              help="Texture filter for the sheet (default point, for pixel art).")
 @handle_unity_errors
 def slice_sheet(path: str, cols: Optional[int], rows: Optional[int], frame_width: Optional[int],
-                frame_height: Optional[int], base_name: Optional[str]):
+                frame_height: Optional[int], base_name: Optional[str], filter_mode: Optional[str]):
     """Slice a sprite sheet into a grid of frames.
 
+    Replaces the sheet's existing slices and sets it to Sprite (Multiple) import,
+    with NPOT scaling off and the --filter-mode filter.
+
     \b
     Examples:
         unity-mcp sprite slice Assets/Sprites/hero.png --cols 6 --rows 4
@@ -71,7 +76,7 @@ def slice_sheet(path: str, cols: Optional[int], rows: Optional[int], frame_width
     config = get_config()
     result = run_command("manage_sprite", _params(
         "slice_sheet", path=path, cols=cols, rows=rows, frame_width=frame_width,
-        frame_height=frame_height, base_name=base_name), config)
+        frame_height=frame_height, base_name=base_name, filter_mode=filter_mode), config)
     click.echo(format_output(result, config.format))
 
 
@@ -125,24 +130,35 @@ def setup_controller(controller_path: str, clips: str, overwrite: bool):
 @click.option("--frame-width", type=int, default=None, help="Frame width in pixels; alternative to --cols.")
 @click.option("--frame-height", type=int, default=None, help="Frame height in pixels; alternative to --rows.")
 @click.option("--base-name", default=None, help="Base name for the frames (default: texture file name).")
+@click.option("--filter-mode", type=click.Choice(["point", "bilinear", "trilinear"]), default=None,
+              help="Texture filter for the sheet (default point, for pixel art).")
 @click.option("--clips", "clips", default=None,
               help='JSON list: [{"name","start_frame","end_frame","fps","loop"}].')
-@click.option("--animation-name", default=None, help="Name of the single clip made when --clips is not given.")
-@click.option("--output-dir", default=None, help="Folder for the .anim assets (default: the sheet's folder).")
-@click.option("--controller-path", default=None, help="Path for the .controller asset.")
-@click.option("--overwrite", is_flag=True, help="Replace .anim and .controller assets that already exist.")
-@click.option("--add-to-scene", is_flag=True, help="Attach an Animator with the controller to --scene-target.")
-@click.option("--scene-target", default=None, help="Existing GameObject that --add-to-scene attaches the Animator to.")
+@click.option("--animation-name", default=None,
+              help="Name of the one clip made from all frames when --clips is not given (default: the "
+                   "sheet's file name; 12 fps; loops only for idle, walk or run-type names).")
+@click.option("--output-dir", default=None,
+              help="Folder for the .anim assets and, without --controller-path, the controller "
+                   "(default: the sheet's folder).")
+@click.option("--controller-path", default=None,
+              help="Path for the .controller asset (default: <output-dir>/<sheet>_Controller.controller).")
+@click.option("--overwrite", is_flag=True,
+              help="Replace .anim and .controller assets that already exist (the sheet is re-sliced either way).")
+@click.option("--add-to-scene", is_flag=True,
+              help="Give --scene-target an Animator with the controller, and a SpriteRenderer if it has none.")
+@click.option("--scene-target", default=None,
+              help="Name of exactly one existing GameObject (inactive ones count) for --add-to-scene.")
 @handle_unity_errors
 def full_setup(path: str, cols: Optional[int], rows: Optional[int], frame_width: Optional[int],
                frame_height: Optional[int], base_name: Optional[str], clips: Optional[str],
                animation_name: Optional[str], output_dir: Optional[str], controller_path: Optional[str],
-               overwrite: bool, add_to_scene: bool, scene_target: Optional[str]):
+               overwrite: bool, add_to_scene: bool, scene_target: Optional[str], filter_mode: Optional[str]):
     """Slice a sheet, then build its clips and controller in one step.
 
     \b
     Examples:
-        unity-mcp sprite full-setup Assets/Sprites/coin.png --cols 8 --animation-name spin
+        unity-mcp sprite full-setup Assets/Sprites/coin.png --cols 8 \\
+            --clips '[{"name": "spin", "start_frame": 0, "end_frame": 7, "loop": true}]'
         unity-mcp sprite full-setup Assets/Sprites/hero.png --cols 6 --rows 4 \\
             --clips '[{"name": "idle", "start_frame": 0, "end_frame": 5}, {"name": "walk", "start_frame": 6, "end_frame": 11}]' \\
             --controller-path Assets/Animators/Hero.controller --add-to-scene --scene-target Hero
@@ -150,7 +166,7 @@ def full_setup(path: str, cols: Optional[int], rows: Optional[int], frame_width:
     config = get_config()
     result = run_command("manage_sprite", _params(
         "full_setup", path=path, cols=cols, rows=rows, frame_width=frame_width,
-        frame_height=frame_height, base_name=base_name, clips=_clips(clips),
+        frame_height=frame_height, base_name=base_name, filter_mode=filter_mode, clips=_clips(clips),
         animation_name=animation_name, output_dir=output_dir, controller_path=controller_path,
         overwrite=overwrite or None, add_to_scene=add_to_scene or None,
         scene_target=scene_target), config)
diff --git a/Server/src/services/registry/tool_registry.py b/Server/src/services/registry/tool_registry.py
index 3b79a9478..db9986997 100644
--- a/Server/src/services/registry/tool_registry.py
+++ b/Server/src/services/registry/tool_registry.py
@@ -19,7 +19,7 @@
     "core": "Essential scene, script, asset & editor tools (always on by default)",
     "docs": "Unity API reflection and documentation lookup",
     "vfx": "Visual effects – VFX Graph, shaders, procedural textures",
-    "animation": "Animator control & AnimationClip creation",
+    "animation": "Animator control, AnimationClip creation & 2D sprite-sheet animation",
     "ui": "UI Toolkit (UXML, USS, UIDocument)",
     "scripting_ext": "ScriptableObject management",
     "testing": "Test runner & async test jobs",
diff --git a/Server/src/services/tools/manage_sprite.py b/Server/src/services/tools/manage_sprite.py
index 6acf3732d..8044b7760 100644
--- a/Server/src/services/tools/manage_sprite.py
+++ b/Server/src/services/tools/manage_sprite.py
@@ -38,14 +38,15 @@ def _sprite_image_result(result: dict[str, Any], image_base64: str) -> ToolResul
 @mcp_for_unity_tool(
     group="animation",
     description=(
-        "2D sprite animation tool. "
-        "get_info: read sprite import settings and return the sheet as an image block for vision analysis; "
-        "the slice list is paged (page_size / cursor). "
-        "slice_sheet: apply grid slicing to a sprite sheet. "
-        "setup_clips: create AnimationClips from sliced sprites. "
-        "setup_controller: build AnimatorController with smart complexity (1D blend tree for locomotion, "
-        "trigger states for combat, simple state for single animations). "
-        "full_setup: one command — slice → clips → controller."
+        "Slice 2D sprite sheets and build AnimationClips and an AnimatorController from the frames. "
+        "Actions: get_info returns a sheet's import settings and slices (paged with page_size / cursor) "
+        "and, for a PNG or JPEG source, the sheet as an image block for vision analysis; "
+        "slice_sheet applies a grid, replacing the sheet's existing slices; "
+        "setup_clips creates AnimationClips from the slices; "
+        "setup_controller builds a controller from clip names (idle = default state, one walk/run "
+        "clip = a plain state and two or more = a Speed-driven 1D blend tree, jump/attack/hurt-type "
+        "names = trigger states that fire from any state, other names = plain states); "
+        "full_setup runs slice → clips → controller in one call."
     ),
     annotations=ToolAnnotations(
         title="Manage Sprite",
@@ -79,32 +80,51 @@ async def manage_sprite(
         str | None,
         "Base name for sliced sprite frames (default: texture filename).",
     ] = None,
+    filter_mode: Annotated[
+        Literal["point", "bilinear", "trilinear"] | None,
+        "slice_sheet and full_setup: texture filter the sliced sheet is imported with, in lowercase "
+        "(get_info reports it as Point, Bilinear or Trilinear). Default: point, which keeps pixel art "
+        "sharp; bilinear or trilinear suits high-resolution art. Every slice sets it, so a filter set "
+        "by hand does not survive a re-slice.",
+    ] = None,
     clips: Annotated[
         list[dict[str, Any]] | None,
-        "Clip definitions: [{name, start_frame, end_frame, fps (default 12), loop (auto-detect if omitted)}]. "
+        "Clip definitions: [{name, start_frame (default 0), end_frame (default the last frame), "
+        "fps (default 12), loop (default from the name)}]. "
         "For setup_controller: [{name, path}] where path is the .anim asset path.",
     ] = None,
     animation_name: Annotated[
         str | None,
-        "Animation name for full_setup when clips are not specified (all frames = one clip).",
+        "full_setup without clips: name of the one clip made from every frame at 12 fps "
+        "(default: the sheet's file name). It loops only for an idle, walk or run-type name.",
     ] = None,
     output_dir: Annotated[
         str | None,
-        "Output directory for .anim and .controller assets (default: same folder as sprite).",
+        "setup_clips and full_setup: folder for the .anim assets, and for full_setup's default "
+        "controller (default: the sprite's folder).",
     ] = None,
     controller_path: Annotated[
         str | None,
-        "Path for the .controller asset (e.g. 'Assets/Animators/Hero.controller').",
+        "Path for the .controller asset (e.g. 'Assets/Animators/Hero.controller'); '.controller' is "
+        "appended if missing. Required for setup_controller; full_setup defaults to "
+        "'<output_dir>/<sheet_name>_Controller.controller'.",
     ] = None,
     overwrite: Annotated[
         bool,
-        "Replace an existing .anim or .controller at the target path. Off by default: "
-        "without it an existing asset is kept and reported back, not silently replaced.",
+        "Replace an existing .anim or .controller at the target path. Off by default: an existing "
+        "clip is skipped with a CLIP_EXISTS warning, and an existing controller fails the call with "
+        "CONTROLLER_EXISTS. Slicing is not covered: it always replaces the sheet's slices.",
+    ] = False,
+    add_to_scene: Annotated[
+        bool,
+        "full_setup: give scene_target an Animator with the new controller, replacing any controller "
+        "it had, and a SpriteRenderer if it has none (warning SCENE_SPRITE_RENDERER_ADDED).",
     ] = False,
-    add_to_scene: Annotated[bool, "Attach Animator + controller to a scene GameObject."] = False,
     scene_target: Annotated[
         str | None,
-        "Existing GameObject name to attach Animator to.",
+        "full_setup with add_to_scene: name of exactly one existing GameObject (inactive ones count). "
+        "A missing, unmatched or ambiguous target fails at step 'add_to_scene', after the clips and "
+        "controller are written.",
     ] = None,
     # The numbers below are documentation, not enforcement: SpriteParams and
     # SpriteImportSetup.GetInfo are what actually refuse an out-of-range page_size, and
@@ -118,7 +138,7 @@ async def manage_sprite(
     cursor: Annotated[
         int | None,
         "get_info: index to start the 'slices' page at. Pass back the 'next_cursor' from "
-        "the previous response; absent next_cursor means the list is finished. The image "
+        "the previous response; next_cursor is null on the last page. The image "
         "is returned only on the first page.",
     ] = None,
 ) -> dict[str, Any] | ToolResult:
@@ -151,7 +171,7 @@ async def manage_sprite(
     optional = {
         "path": path, "cols": cols, "rows": rows,
         "frame_width": frame_width, "frame_height": frame_height,
-        "base_name": base_name, "clips": clips,
+        "base_name": base_name, "filter_mode": filter_mode, "clips": clips,
         "animation_name": animation_name, "output_dir": output_dir,
         "controller_path": controller_path, "page_size": page_size,
         "cursor": cursor, "scene_target": scene_target,
diff --git a/Server/tests/test_manage_sprite.py b/Server/tests/test_manage_sprite.py
index ddf544997..6c8429d08 100644
--- a/Server/tests/test_manage_sprite.py
+++ b/Server/tests/test_manage_sprite.py
@@ -239,7 +239,7 @@ def test_every_optional_argument_has_a_forwarding_branch(self, mock_unity):
         # dropped branch and this guard would cry wolf.
         sample = {
             "path": "Assets/a.png", "cols": 1, "rows": 1, "frame_width": 1,
-            "frame_height": 1, "base_name": "b", "clips": [{"name": "walk"}],
+            "frame_height": 1, "base_name": "b", "filter_mode": "bilinear", "clips": [{"name": "walk"}],
             "animation_name": "walk", "output_dir": "Assets/out",
             "controller_path": "Assets/a.controller", "overwrite": True,
             "add_to_scene": True, "scene_target": "Hero", "page_size": 1, "cursor": 1,
@@ -292,9 +292,10 @@ class TestSpriteCLICommands:
          {"action": "get_info", "path": "Assets/atlas.png", "page_size": 100, "cursor": 200}),
         (["slice", "Assets/hero.png", "--cols", "4"],
          {"action": "slice_sheet", "path": "Assets/hero.png", "cols": 4}),
-        (["slice", "Assets/hero.png", "--frame-width", "32", "--frame-height", "16", "--base-name", "hero"],
+        (["slice", "Assets/hero.png", "--frame-width", "32", "--frame-height", "16", "--base-name", "hero",
+          "--filter-mode", "bilinear"],
          {"action": "slice_sheet", "path": "Assets/hero.png", "frame_width": 32, "frame_height": 16,
-          "base_name": "hero"}),
+          "base_name": "hero", "filter_mode": "bilinear"}),
         (["setup-clips", "Assets/hero.png", "--clips", '[{"name": "walk", "start_frame": 0, "end_frame": 5}]'],
          {"action": "setup_clips", "path": "Assets/hero.png",
           "clips": [{"name": "walk", "start_frame": 0, "end_frame": 5}]}),
@@ -324,7 +325,7 @@ def test_every_tool_parameter_can_be_sent_from_the_cli(self, run_cli):
             ["full-setup", "Assets/a.png", "--cols", "1", "--rows", "1", "--frame-width", "1",
              "--frame-height", "1", "--base-name", "b", "--clips", "[]", "--animation-name", "walk",
              "--output-dir", "Assets/out", "--controller-path", "Assets/a.controller", "--overwrite",
-             "--add-to-scene", "--scene-target", "Hero"],
+             "--add-to-scene", "--scene-target", "Hero", "--filter-mode", "point"],
         ):
             result, mock_run = run_cli(args)
             assert result.exit_code == 0, result.output
diff --git a/TestProjects/UnityMCPTests/Assets/Tests/EditMode/Tools/ManageSpriteTests.cs b/TestProjects/UnityMCPTests/Assets/Tests/EditMode/Tools/ManageSpriteTests.cs
index f7e38ab40..077feecb5 100644
--- a/TestProjects/UnityMCPTests/Assets/Tests/EditMode/Tools/ManageSpriteTests.cs
+++ b/TestProjects/UnityMCPTests/Assets/Tests/EditMode/Tools/ManageSpriteTests.cs
@@ -697,6 +697,25 @@ public void SliceSheet_FrameHeightAloneDerivesTheRowCount()
             Assert.AreEqual(16, SpritesOf(path).Length);
         }
 
+        [TestCase("slice_sheet", null, FilterMode.Point)]
+        [TestCase("slice_sheet", "bilinear", FilterMode.Bilinear)]
+        // Mixed case, and through full_setup, which hands its own params to the slice step.
+        [TestCase("full_setup", "Trilinear", FilterMode.Trilinear)]
+        public void FilterMode_IsWhatTheSliceSets_PointUnlessAsked(string action, string filterMode, FilterMode expected)
+        {
+            string path = CreateSheet("filter", 4, 1);
+            Assert.AreEqual(FilterMode.Bilinear, ((TextureImporter)AssetImporter.GetAtPath(path)).filterMode,
+                "fixture: a sheet that starts as Point would let the Point case pass without the slice setting it");
+            var request = new JObject { ["action"] = action, ["path"] = path, ["cols"] = 4 };
+            if (filterMode != null)
+                request["filter_mode"] = filterMode;
+
+            var result = Run(request);
+
+            Assert.AreEqual(expected, ((TextureImporter)AssetImporter.GetAtPath(path)).filterMode,
+                result.ToString(Newtonsoft.Json.Formatting.None));
+        }
+
         private static IEnumerable<TestCaseData> RefusedGrids()
         {
             TestCaseData Case(int sheetCols, int sheetRows, JObject grid, string code) =>
@@ -723,6 +742,8 @@ TestCaseData Case(int sheetCols, int sheetRows, JObject grid, string code) =>
             yield return Case(8, 8, new JObject { ["cols"] = 128, ["rows"] = 128 }, "SLICE_TOO_MANY_FRAMES");
             // A negative alternative used to be silently replaced by the value derived from cols.
             yield return Case(2, 1, new JObject { ["cols"] = 2, ["frame_width"] = -1 }, "BAD_PARAM");
+            // "nearest" is another engine's name for Point: refused like a bad grid value, not mapped.
+            yield return Case(2, 1, new JObject { ["cols"] = 2, ["filter_mode"] = "nearest" }, "BAD_PARAM");
         }
 
         [TestCaseSource(nameof(RefusedGrids))]
@@ -810,7 +831,7 @@ public void SliceSheet_ReslicingWithADifferentGrid_ReplacesTheOldFrames()
             Slice(path, 4, 2);
             Assert.AreEqual(8, SpritesOf(path).Length);
 
-            Slice(path, 2, 1);
+            var smaller = Slice(path, 2, 1);
             var after = SpritesOf(path).Select(s => s.name).ToArray();
 #pragma warning disable CS0618 // same API the tool writes through
             int configured = ((TextureImporter)AssetImporter.GetAtPath(path)).spritesheet.Length;
@@ -818,6 +839,11 @@ public void SliceSheet_ReslicingWithADifferentGrid_ReplacesTheOldFrames()
             Assert.AreEqual(2, after.Length,
                 $"stale frames must not survive a reslice; importer holds {configured}, " +
                 "project holds: " + string.Join(", ", after));
+            // A clip that played reslice_2..7 loses those frames, so the slice has to name them.
+            Assert.That(smaller["diagnostics"].ToString(),
+                Does.Contain("SLICE_REMOVED_FRAMES").And.Contain("reslice_7").And.Not.Contain("reslice_1"));
+            Assert.That(Slice(path, 2, 1)["diagnostics"].ToString(), Does.Not.Contain("SLICE_REMOVED_FRAMES"),
+                "the same grid again removes nothing");
         }
 
         // =====================================================================
@@ -1239,6 +1265,65 @@ public void SetupController_OneShotsWithoutALoopingState_DoNotExitIntoEachOther(
                     $"'{state.name}' got an exit-time transition");
         }
 
+        [Test]
+        public void SetupController_TriggersFireFromAnyStateWithoutBlending()
+        {
+            // Trigger transitions used to come only from states that already existed, so
+            // 'attack' could not interrupt 'hurt', which is built after it.
+            var result = SetupController(BuildClips("anystate", "idle", "walk", "attack", "hurt"));
+            Assert.IsTrue(result.Value<bool>("success"), result.ToString());
+
+            var sm = AssetDatabase.LoadAssetAtPath<AnimatorController>($"{TempRoot}/Hero.controller").layers[0].stateMachine;
+            foreach (var (state, trigger) in new[] { ("attack", "Attack"), ("hurt", "Hurt") })
+                Assert.IsTrue(sm.anyStateTransitions.Any(t =>
+                        t.destinationState != null && t.destinationState.name == state &&
+                        t.conditions.Any(c => c.mode == AnimatorConditionMode.If && c.parameter == trigger)),
+                    $"'{state}' needs an Any State transition on '{trigger}'; without one, states built " +
+                    "after it cannot be interrupted by it ('attack' could not interrupt 'hurt')");
+            Assert.That(sm.anyStateTransitions.Where(t => !t.canTransitionToSelf).Select(t => t.destinationState?.name),
+                Is.Empty, "a repeated trigger must restart its clip; with canTransitionToSelf off, Unity keeps " +
+                "the trigger set and replays the state after it ends");
+
+            var blended = sm.states
+                .SelectMany(s => s.state.transitions.Select(t => (source: s.state.name, t)))
+                .Concat(sm.anyStateTransitions.Select(t => (source: "Any State", t)))
+                .Where(x => x.t.duration != 0f)
+                .Select(x => $"{x.source} -> {x.t.destinationState?.name} ({x.t.duration})")
+                .ToArray();
+            Assert.That(blended, Is.Empty,
+                "sprite keys cannot blend, so any blend time only delays the frame change");
+        }
+
+        // Each case leaves one clip that no transition plays, so only a warning tells the caller.
+        // `named`: what the warning must name, the clip it is about first.
+        [TestCase("STATE_UNREACHABLE", "idle,taunt", "'taunt'")]
+        // One Idle state: the second idle clip was dropped without a word.
+        [TestCase("IDLE_CLIP_UNUSED", "idle,idle_blink", "'idle_blink'", "'idle'")]
+        // Both clips got an Any State transition on Attack, and only the first could ever fire.
+        [TestCase("TRIGGER_SHARED", "idle,attack,hero_attack", "'hero_attack'", "'attack'", "'Attack'")]
+        public void SetupController_ClipThatNoTransitionPlays_IsNamedInAWarning(string code, string clips, params string[] named)
+        {
+            var result = SetupController(BuildClips("unplayed", clips.Split(',')));
+            Assert.IsTrue(result.Value<bool>("success"), result.ToString());
+
+            // Not even a transition that can never fire: for a shared trigger the builder used to
+            // add a second Any State transition anyway.
+            string clip = named[0].Trim('\'');
+            var sm = AssetDatabase.LoadAssetAtPath<AnimatorController>($"{TempRoot}/Hero.controller").layers[0].stateMachine;
+            var incoming = sm.anyStateTransitions
+                .Concat(sm.states.SelectMany(s => s.state.transitions))
+                .Where(t => t.destinationState != null && t.destinationState.name == clip);
+            Assert.That(incoming, Is.Empty, $"a transition leads to '{clip}'");
+
+            var warnings = result["diagnostics"]
+                .Where(d => d.Value<string>("code") == code)
+                .Select(d => d.Value<string>("message"))
+                .ToArray();
+            Assert.AreEqual(1, warnings.Length, "diagnostics were " + result["diagnostics"]);
+            foreach (string name in named)
+                Assert.That(warnings[0], Does.Contain(name));
+        }
+
         [Test]
         public void SetupController_WalkAndRun_BuildsASpeedDrivenBlendTree()
         {
@@ -1374,8 +1459,13 @@ public void SetupController_OverwriteThatCannotBuildAReplacement_KeepsTheOldCont
         // full_setup
         // =====================================================================
 
-        [Test]
-        public void FullSetup_ControllerRefusal_StopsBeforeTouchingTheScene()
+        // A second run without overwrite. Given the same clip, every clip exists: it used to reach
+        // the controller step and fail there with "No valid clips loaded.". Given a new clip, the
+        // clip is written and the existing controller refuses. `fixes`: what the refusal must offer.
+        [TestCase(null, "setup_clips", "ALL_CLIPS_EXIST", "overwrite=true", "setup_controller")]
+        [TestCase("s5_new", "setup_controller", "CONTROLLER_EXISTS", "overwrite=true")]
+        public void FullSetup_RerunWithoutOverwrite_StopsAtTheRefusingStepBeforeTouchingTheScene(
+            string secondClip, string step, string code, params string[] fixes)
         {
             string path = CreateSheet("s5", 4, 1);
             var go = new GameObject("SpriteTest_S5");
@@ -1385,17 +1475,23 @@ public void FullSetup_ControllerRefusal_StopsBeforeTouchingTheScene()
                 Run(new JObject { ["action"] = "full_setup", ["path"] = path, ["cols"] = 4,
                                   ["output_dir"] = TempRoot, ["controller_path"] = ctrl });
 
-                // Second run: the controller exists and overwrite is not set, so the
-                // controller step fails - and a failed step must not fall through.
-                var result = Run(new JObject { ["action"] = "full_setup", ["path"] = path, ["cols"] = 4,
-                                  ["output_dir"] = TempRoot, ["controller_path"] = ctrl,
-                                  ["add_to_scene"] = true, ["scene_target"] = "SpriteTest_S5" });
+                var rerun = new JObject { ["action"] = "full_setup", ["path"] = path, ["cols"] = 4,
+                                          ["output_dir"] = TempRoot, ["controller_path"] = ctrl,
+                                          ["add_to_scene"] = true, ["scene_target"] = "SpriteTest_S5" };
+                if (secondClip != null) rerun["animation_name"] = secondClip;
+                var result = Run(rerun);
 
                 Assert.IsFalse(result.Value<bool>("success"));
-                Assert.AreEqual("setup_controller", result.Value<string>("step"),
-                    "the response must name the step that failed");
+                Assert.AreEqual(step, result.Value<string>("step"),
+                    "the response must name the step that refused; it was " + result);
+                var refusal = result["diagnostics"].FirstOrDefault(d => d.Value<string>("code") == code);
+                Assert.IsNotNull(refusal, "diagnostics were " + result["diagnostics"]);
+                Assert.AreEqual("error", refusal.Value<string>("severity"));
+                string offered = string.Join(" ", refusal["fix_options"].Values<string>());
+                foreach (string fix in fixes)
+                    Assert.That(offered, Does.Contain(fix));
                 Assert.IsNull(go.GetComponent<Animator>(),
-                    "a refused controller step must not go on to modify the scene");
+                    "a refused step must not go on to modify the scene");
             }
             finally { Object.DestroyImmediate(go); }
         }
@@ -1544,28 +1640,31 @@ public void FullSetup_RefusedClip_IsNotCountedAsCreated()
         }
 
         // The controller re-derived looping from the clip name, so 'attack' with loop=true
-        // still got a one-shot exit to idle while its .anim looped.
-        [TestCase(true, false)]
-        [TestCase(null, true)]
-        public void FullSetup_ExplicitLoop_DecidesTheOneShotExit(bool? loop, bool expectExit)
+        // still got a one-shot exit to idle while its .anim looped. A death got that exit too,
+        // and returning to idle stood the dead character back up.
+        [TestCase("attack", true, false)]
+        [TestCase("attack", null, true)]
+        [TestCase("die", null, false)]
+        [TestCase("hero_death", null, false)]
+        public void FullSetup_LoopAndName_DecideTheOneShotExit(string clipName, bool? loop, bool expectExit)
         {
             string path = CreateSheet("loopflag", 4, 1);
-            var attackDef = new JObject { ["name"] = "attack", ["start_frame"] = 2, ["end_frame"] = 3 };
-            if (loop.HasValue) attackDef["loop"] = loop.Value;
+            var oneShotDef = new JObject { ["name"] = clipName, ["start_frame"] = 2, ["end_frame"] = 3 };
+            if (loop.HasValue) oneShotDef["loop"] = loop.Value;
             var result = Run(new JObject
             {
                 ["action"] = "full_setup", ["path"] = path, ["cols"] = 4,
                 ["output_dir"] = TempRoot, ["controller_path"] = $"{TempRoot}/Loop.controller",
                 ["clips"] = new JArray {
                     new JObject { ["name"] = "idle", ["start_frame"] = 0, ["end_frame"] = 1 },
-                    attackDef,
+                    oneShotDef,
                 },
             });
             Assert.IsTrue(result.Value<bool>("success"), result.ToString());
 
             var sm = AssetDatabase.LoadAssetAtPath<AnimatorController>($"{TempRoot}/Loop.controller").layers[0].stateMachine;
-            var attack = sm.states.Select(s => s.state).Single(s => s.name == "attack");
-            bool exitsToIdle = attack.transitions.Any(t => t.destinationState != null && t.destinationState.name == "Idle");
+            var oneShot = sm.states.Select(s => s.state).Single(s => s.name == clipName);
+            bool exitsToIdle = oneShot.transitions.Any(t => t.destinationState != null && t.destinationState.name == "Idle");
             Assert.AreEqual(expectExit, exitsToIdle);
         }
 
diff --git a/docs/i18n/README-zh.md b/docs/i18n/README-zh.md
index 35e1f3e42..ac57ff9fe 100644
--- a/docs/i18n/README-zh.md
+++ b/docs/i18n/README-zh.md
@@ -39,7 +39,7 @@
 
 ## 它能做什么
 
-用自然语言从任意 MCP 客户端操作 Unity 编辑器：搭场景、建 GameObject、写改 C# 脚本、调材质和着色器、跑测试、看性能、出包。47 个 MCP 工具入口，任意客户端可用，免费、MIT 开源。
+用自然语言从任意 MCP 客户端操作 Unity 编辑器：搭场景、建 GameObject、写改 C# 脚本、调材质和着色器、跑测试、看性能、出包。50 个 MCP 工具入口，任意客户端可用，免费、MIT 开源。
 
 **[查看完整工具目录 →](https://coplaydev.github.io/unity-mcp/reference/tools/)**
 
diff --git a/unity-mcp-skill/SKILL.md b/unity-mcp-skill/SKILL.md
index 38d3c8935..743d47feb 100644
--- a/unity-mcp-skill/SKILL.md
+++ b/unity-mcp-skill/SKILL.md
@@ -191,6 +191,7 @@ uri="file:///full/path/to/file.cs"
 | **Testing** | `run_tests`, `get_test_job` | Unity Test Framework |
 | **Batch** | `batch_execute` | Parallel/bulk operations |
 | **Camera** | `manage_camera` | Camera management (Unity Camera + Cinemachine). **Tier 1** (always available): create, target, lens, priority, list, screenshot. **Tier 2** (requires `com.unity.cinemachine`): brain, body/aim/noise pipeline, extensions, blending, force/release. 7 presets: follow, third_person, freelook, dolly, static, top_down, side_scroller. Resource: `mcpforunity://scene/cameras`. Use `ping` to check Cinemachine availability. See [tools-reference.md](references/tools-reference.md#camera-tools). |
+| **Animation** | `manage_animation`, `manage_sprite` | Animator control, clips and controllers. **2D sprite sheets**: `manage_sprite(action="get_info")` returns a PNG or JPEG sheet as an image to count the grid from, then `full_setup` slices it and builds clips and a controller; clip names decide the states (idle, walk/run, attack-type triggers). Off by default over HTTP: `manage_tools(action="activate", group="animation")`. |
 | **Graphics** | `manage_graphics` | Rendering and post-processing management. 33 actions across 5 groups: **Volume** (create/configure volumes and effects, URP/HDRP), **Bake** (lightmaps, light probes, reflection probes, Edit mode only), **Stats** (draw calls, batches, memory), **Pipeline** (quality levels, pipeline settings), **Features** (URP renderer features: add, remove, toggle, reorder). Resources: `mcpforunity://scene/volumes`, `mcpforunity://rendering/stats`, `mcpforunity://pipeline/renderer-features`. Use `ping` to check pipeline status. See [tools-reference.md](references/tools-reference.md#graphics-tools). |
 | **Packages** | `manage_packages` | Install, remove, search, and manage Unity packages and scoped registries. Query actions: list installed, search registry, get info, ping, poll status. Mutating actions: add/remove packages, embed for editing, add/remove scoped registries, force resolve. Validates identifiers, warns on git URLs, checks dependents before removal (`force=true` to override). See [tools-reference.md](references/tools-reference.md#package-tools). |
 | **Physics** | `manage_physics` | Manage 3D and 2D physics (21 actions). Settings, collision matrix, materials, joints (14 types). Queries: `raycast`, `raycast_all`, `linecast`, `shapecast` (sphere/box/capsule sweep), `overlap`. Forces: `apply_force` (AddForce/AddTorque/AddExplosionForce with ForceMode). Rigidbody: `get_rigidbody`, `configure_rigidbody` (mass, drag, gravity, constraints, collision detection). Validation: scene-wide checks. Simulation: `simulate_step` in edit mode. See [tools-reference.md](references/tools-reference.md#physics-tools). |
diff --git a/website/docs/guides/cli-examples.md b/website/docs/guides/cli-examples.md
index c67971cf3..89c508c54 100644
--- a/website/docs/guides/cli-examples.md
+++ b/website/docs/guides/cli-examples.md
@@ -224,7 +224,7 @@ unity-mcp texture delete "Assets/Textures/Old.png" [--force]
 ```bash
 unity-mcp sprite info "Assets/Sprites/Hero.png"                      # Size, import settings, slices
 unity-mcp sprite slice "Assets/Sprites/Hero.png" --cols 6 --rows 4   # Or --frame-width/--frame-height
-unity-mcp sprite full-setup "Assets/Sprites/Coin.png" --cols 8 --animation-name spin
+unity-mcp sprite full-setup "Assets/Sprites/Coin.png" --cols 8 --clips '[{"name":"spin","start_frame":0,"end_frame":7,"loop":true}]'
 unity-mcp sprite full-setup "Assets/Sprites/Hero.png" --cols 6 --rows 4 --clips '[{"name":"idle","start_frame":0,"end_frame":5},{"name":"walk","start_frame":6,"end_frame":11}]' --controller-path "Assets/Animators/Hero.controller"
 ```
 
diff --git a/website/docs/guides/cli.md b/website/docs/guides/cli.md
index 46738a7bb..168976d0e 100644
--- a/website/docs/guides/cli.md
+++ b/website/docs/guides/cli.md
@@ -476,9 +476,10 @@ unity-mcp texture delete "Assets/Textures/Old.png" [--force]
 ```bash
 unity-mcp sprite info "Assets/Sprites/Hero.png"                      # Size, import settings, slices
 unity-mcp sprite slice "Assets/Sprites/Hero.png" --cols 6 --rows 4   # Or --frame-width/--frame-height
+unity-mcp sprite slice "Assets/Sprites/Painted.png" --cols 8 --filter-mode bilinear   # Default point, for pixel art
 unity-mcp sprite setup-clips "Assets/Sprites/Hero.png" --clips '[{"name": "walk", "start_frame": 0, "end_frame": 5}]'
 unity-mcp sprite setup-controller "Assets/Animators/Hero.controller" --clips '[{"name": "walk", "path": "Assets/Sprites/walk.anim"}]'
-unity-mcp sprite full-setup "Assets/Sprites/Coin.png" --cols 8 --animation-name spin
+unity-mcp sprite full-setup "Assets/Sprites/Coin.png" --cols 8 --clips '[{"name": "spin", "start_frame": 0, "end_frame": 7, "loop": true}]'
 ```
 
 ### Build Operations
diff --git a/website/docs/guides/tool-groups.md b/website/docs/guides/tool-groups.md
index b75bc5f61..4223d4ea5 100644
--- a/website/docs/guides/tool-groups.md
+++ b/website/docs/guides/tool-groups.md
@@ -3,19 +3,19 @@ id: tool-groups
 slug: /guides/tool-groups
 title: Tool Groups and manage_tools
 sidebar_label: Tool Groups
-description: Per-session visibility for the 48 tools. Activate vfx, animation, ui, testing, etc. only when you need them.
+description: Per-session visibility for the 50 tools. Activate vfx, animation, ui, testing, etc. only when you need them.
 ---
 
 # Tool Groups
 
-MCP for Unity ships 48 tools, but exposing all of them to the LLM at once balloons the prompt and dilutes routing decisions. So tools are sorted into **groups**, and only `core` is enabled by default.
+MCP for Unity ships 50 tools, but exposing all of them to the LLM at once balloons the prompt and dilutes routing decisions. So tools are sorted into **groups**, and only `core` is enabled by default.
 
 ## The groups
 
 | Group | Default | Description |
 |---|---|---|
 | `core` | enabled | Essential scene, script, asset, and editor tools — always on. |
-| `animation` | off | Animator control, AnimationClip creation. |
+| `animation` | off | Animator control, AnimationClip creation, 2D sprite-sheet animation. |
 | `ui` | off | UI Toolkit — UXML, USS, UIDocument. |
 | `vfx` | off | VFX Graph, shaders, procedural textures. |
 | `scripting_ext` | off | ScriptableObject management. |
@@ -65,7 +65,7 @@ Useful when a group's tools are confusing the assistant — e.g., `manage_shader
 Three reasons:
 
 1. **Prompt economy**: each visible tool adds tokens to every assistant call. Hiding what you're not using is real money saved at scale.
-2. **Routing clarity**: when the LLM picks between 48 tools versus the 30 core tools, the wrong-tool rate drops measurably.
+2. **Routing clarity**: when the LLM picks between 50 tools versus the 30 core tools, the wrong-tool rate drops measurably.
 3. **Package hygiene**: tools in `probuilder` only work if `com.unity.probuilder` is installed; hiding them by default avoids confusing errors.
 
 ## Server vs. session state
diff --git a/website/docs/reference/tools/animation/index.md b/website/docs/reference/tools/animation/index.md
index 0c76eae1f..35bb1893f 100644
--- a/website/docs/reference/tools/animation/index.md
+++ b/website/docs/reference/tools/animation/index.md
@@ -6,7 +6,7 @@ description: "MCP for Unity tools in the animation group."
 
 # `animation` tools
 
-Animator control & AnimationClip creation
+Animator control, AnimationClip creation & 2D sprite-sheet animation
 
 - **[`manage_animation`](./manage_animation.md)** — Manage Unity animation: Animator control and AnimationClip creation.
-- **[`manage_sprite`](./manage_sprite.md)** — 2D sprite animation tool. get_info: read sprite import settings and return the sheet as an image block for vision analysis; the slice list is paged (page_size / cursor). slice_sheet: apply grid slicing to a sprite sheet. setup_clips: cre…
+- **[`manage_sprite`](./manage_sprite.md)** — Slice 2D sprite sheets and build AnimationClips and an AnimatorController from the frames.
diff --git a/website/docs/reference/tools/animation/manage_sprite.md b/website/docs/reference/tools/animation/manage_sprite.md
index a522c9c3f..78c67335e 100644
--- a/website/docs/reference/tools/animation/manage_sprite.md
+++ b/website/docs/reference/tools/animation/manage_sprite.md
@@ -1,7 +1,7 @@
 ---
 title: manage_sprite
 sidebar_label: manage_sprite
-description: "2D sprite animation tool. get_info: read sprite import settings and return the sheet as an image block for vision analysis; the slice list is paged (page_size / cursor). slice_sheet: apply grid slicing to a sprite sheet. setup_clips: cre…"
+description: "Slice 2D sprite sheets and build AnimationClips and an AnimatorController from the frames."
 ---
 
 # `manage_sprite`
@@ -12,7 +12,7 @@ description: "2D sprite animation tool. get_info: read sprite import settings an
 
 ## Description
 
-2D sprite animation tool. get_info: read sprite import settings and return the sheet as an image block for vision analysis; the slice list is paged (page_size / cursor). slice_sheet: apply grid slicing to a sprite sheet. setup_clips: create AnimationClips from sliced sprites. setup_controller: build AnimatorController with smart complexity (1D blend tree for locomotion, trigger states for combat, simple state for single animations). full_setup: one command — slice → clips → controller.
+Slice 2D sprite sheets and build AnimationClips and an AnimatorController from the frames. Actions: get_info returns a sheet's import settings and slices (paged with page_size / cursor) and, for a PNG or JPEG source, the sheet as an image block for vision analysis; slice_sheet applies a grid, replacing the sheet's existing slices; setup_clips creates AnimationClips from the slices; setup_controller builds a controller from clip names (idle = default state, one walk/run clip = a plain state and two or more = a Speed-driven 1D blend tree, jump/attack/hurt-type names = trigger states that fire from any state, other names = plain states); full_setup runs slice → clips → controller in one call.
 
 ## Parameters
 
@@ -25,15 +25,16 @@ description: "2D sprite animation tool. get_info: read sprite import settings an
 | `frame_width` | `int \| None` | — | Frame width in pixels. Alternative to cols. |
 | `frame_height` | `int \| None` | — | Frame height in pixels. Alternative to rows. |
 | `base_name` | `str \| None` | — | Base name for sliced sprite frames (default: texture filename). |
-| `clips` | `list[dict[str, Any]] \| None` | — | Clip definitions: [{name, start_frame, end_frame, fps (default 12), loop (auto-detect if omitted)}]. For setup_controller: [{name, path}] where path is the .anim asset path. |
-| `animation_name` | `str \| None` | — | Animation name for full_setup when clips are not specified (all frames = one clip). |
-| `output_dir` | `str \| None` | — | Output directory for .anim and .controller assets (default: same folder as sprite). |
-| `controller_path` | `str \| None` | — | Path for the .controller asset (e.g. 'Assets/Animators/Hero.controller'). |
-| `overwrite` | `bool` | — | Replace an existing .anim or .controller at the target path. Off by default: without it an existing asset is kept and reported back, not silently replaced. |
-| `add_to_scene` | `bool` | — | Attach Animator + controller to a scene GameObject. |
-| `scene_target` | `str \| None` | — | Existing GameObject name to attach Animator to. |
+| `filter_mode` | `Literal['point', 'bilinear', 'trilinear'] \| None` | — | slice_sheet and full_setup: texture filter the sliced sheet is imported with, in lowercase (get_info reports it as Point, Bilinear or Trilinear). Default: point, which keeps pixel art sharp; bilinear or trilinear suits high-resolution art. Every slice sets it, so a filter set by hand does not survive a re-slice. |
+| `clips` | `list[dict[str, Any]] \| None` | — | Clip definitions: [{name, start_frame (default 0), end_frame (default the last frame), fps (default 12), loop (default from the name)}]. For setup_controller: [{name, path}] where path is the .anim asset path. |
+| `animation_name` | `str \| None` | — | full_setup without clips: name of the one clip made from every frame at 12 fps (default: the sheet's file name). It loops only for an idle, walk or run-type name. |
+| `output_dir` | `str \| None` | — | setup_clips and full_setup: folder for the .anim assets, and for full_setup's default controller (default: the sprite's folder). |
+| `controller_path` | `str \| None` | — | Path for the .controller asset (e.g. 'Assets/Animators/Hero.controller'); '.controller' is appended if missing. Required for setup_controller; full_setup defaults to '<output_dir>/<sheet_name>_Controller.controller'. |
+| `overwrite` | `bool` | — | Replace an existing .anim or .controller at the target path. Off by default: an existing clip is skipped with a CLIP_EXISTS warning, and an existing controller fails the call with CONTROLLER_EXISTS. Slicing is not covered: it always replaces the sheet's slices. |
+| `add_to_scene` | `bool` | — | full_setup: give scene_target an Animator with the new controller, replacing any controller it had, and a SpriteRenderer if it has none (warning SCENE_SPRITE_RENDERER_ADDED). |
+| `scene_target` | `str \| None` | — | full_setup with add_to_scene: name of exactly one existing GameObject (inactive ones count). A missing, unmatched or ambiguous target fails at step 'add_to_scene', after the clips and controller are written. |
 | `page_size` | `int \| None` | — | get_info: how many entries of the 'slices' list to return (1-4096, default 512). A sheet sliced by hand can hold more slices than one response should carry. |
-| `cursor` | `int \| None` | — | get_info: index to start the 'slices' page at. Pass back the 'next_cursor' from the previous response; absent next_cursor means the list is finished. The image is returned only on the first page. |
+| `cursor` | `int \| None` | — | get_info: index to start the 'slices' page at. Pass back the 'next_cursor' from the previous response; next_cursor is null on the last page. The image is returned only on the first page. |
 
 ## Returns
 
@@ -52,9 +53,14 @@ the frames before committing to a grid.
 { "action": "get_info", "path": "Assets/Sprites/hero_walk.png" }
 ```
 
+`width` and `height` are the source file's pixels, which `slice_sheet` cuts in; Max Size or
+NPOT scaling can make the imported texture smaller. The image is left out, with the reason
+in `image_omitted_reason`, when the source is not PNG or JPEG, is over 8000 px on a side, or
+would exceed 4 MB as base64 (about a 3 MB file).
+
 The `slices` list is paged. A sheet can hold more entries than one response should carry —
 `slice_sheet` alone allows up to 4096 — so `slice_count` reports the total and
-`next_cursor` appears only while entries remain. Follow it whenever it is present rather
+`next_cursor` is non-null only while entries remain. Follow it until it is null rather
 than assuming a sheet arrives whole.
 Walk it by passing the previous `next_cursor` back; the image comes with the first page
 only, since it is the same picture on every one.
@@ -83,10 +89,24 @@ only, since it is the same picture on every one.
 }
 ```
 
-Clip names decide the controller's shape: `idle` becomes the default state, `walk` and
-`run` collapse into a `Speed`-driven 1D blend tree, and `attack` gets an `Attack` trigger.
-Looping follows from the same names — locomotion and idle loop, a one-shot does not — and
-an explicit `"loop"` on a clip overrides that.
+Clip names decide the controller's shape: here `idle` becomes the default state, `walk` and
+`run` share a `Speed`-driven 1D blend tree, and `attack` gets an `Attack` trigger. A name is
+split into words (on `_`, `-`, spaces, camelCase and digits, so `heroAttack2` reads as
+`hero`, `attack`, `2`), and the first row that matches decides:
+
+| Words in the clip name | State | Loops by default |
+|---|---|---|
+| `idle`, `stand` | `Idle`, the default state. Only the first such clip is used: each later one gets no state, and the response warns `IDLE_CLIP_UNUSED`. | yes |
+| `walk`; `run`, `sprint` | One clip: a state of that name. Two or more: a `Locomotion` state with a 1D blend tree on `Speed` (walk at 1, run at 2). Idle switches to it when `Speed` rises above 0.1 and back when it drops below 0.1. | yes |
+| `jump`, `fall`, `land`; `attack`, `slash`, `punch`, `combo`, `cast`, `shoot`; `open`, `close`, `activate`, `die`, `death`, `hurt`, `hit` | A state entered from any state by a trigger named after the first of these words it contains (`heroAttack` → `Attack`); the trigger also restarts it. A non-looping one returns to Idle, else Locomotion, when it ends; a death, whose name has `die` or `death` in it, stays on its last frame instead. | no |
+| anything else | A state no transition leads to. Unless it is the default state, it plays only from a script, and the response warns `STATE_UNREACHABLE`. | no |
+
+Every transition is instant, since sprite frames cannot blend. Each trigger enters one state:
+when clips share a word, the first of them takes the trigger, and each later one gets a state
+that no transition leads to, with a `TRIGGER_SHARED` warning, so give each one-shot its own
+action word. A death has no exit of its own, but triggers fire from any state: one set after
+the death, `Hurt` included, still takes the Animator out of it, so stop setting them once the
+character is dead. An explicit `"loop"` on a clip overrides the default.
 
 ### Slicing on its own
 
@@ -96,16 +116,45 @@ an explicit `"loop"` on a clip overrides that.
 
 `frame_width`/`frame_height` are the alternative to `cols`/`rows`; supply either pair. A
 grid that does not fit inside the texture is refused rather than silently dropping the
-frames that fall outside it.
+frames that fall outside it. Slicing sets the texture to Sprite (Multiple) import with NPOT
+scaling off.
+The sheet is imported with point filtering, which keeps pixel art sharp; pass
+`"filter_mode": "bilinear"` (or `"trilinear"`) for high-resolution art.
 
 ### Replacing what is already there
 
-Existing `.anim` and `.controller` assets are kept unless `overwrite` is set, so a repeated
-`full_setup` reports what it found instead of overwriting work:
+`overwrite` covers the `.anim` and `.controller` files, not the sheet. Without it, an
+existing clip is skipped with a `CLIP_EXISTS` warning and an existing controller stops the
+call with `CONTROLLER_EXISTS`. Repeating a `full_setup` therefore ends with
+`success: false`: at `step: "setup_clips"` with `ALL_CLIPS_EXIST` when every clip already
+exists, or at `step: "setup_controller"` with `CONTROLLER_EXISTS` once the new clips are
+written. To replace what exists, pass `"overwrite": true`:
 
 ```json
 { "action": "setup_clips", "path": "Assets/Sprites/hero.png",
   "clips": [{ "name": "walk", "start_frame": 0, "end_frame": 5 }], "overwrite": true }
 ```
+
+To keep the clips and only rebuild the controller, call `setup_controller` with their
+`.anim` paths, which the `CLIP_EXISTS` warnings name, and `"overwrite": true` if the
+controller already exists.
+
+Slicing has no such guard: every `slice_sheet` and `full_setup` replaces the sheet's slices
+and sets its filter to `filter_mode` (point unless given), so a filter set by hand does not
+survive. A frame keeps its identity only while the new grid reuses its name: a re-slice that
+removes frames warns `SLICE_REMOVED_FRAMES`, and clips that used them lose those frames.
+Slice again with the previous grid and `base_name` to bring them back, or rebuild the clips
+with `overwrite`.
+
+### Reading the result
+
+Every action except `get_info` returns `diagnostics`, a list of
+`{code, severity, message, fix_options}`. A bad clip entry (`CLIP_BAD_RANGE`,
+`CLIP_BAD_FPS`, `CLIP_EXISTS` and the like) is a warning that skips that clip, so
+`setup_clips` can succeed with `clip_count: 0`; compare `clip_count` with the clips you
+sent. A failed `full_setup` names the step it stopped at in `step`: `slice_sheet`,
+`setup_clips`, `setup_controller` or `add_to_scene`. At `add_to_scene` the clips and
+controller are already written, and the response still carries `controller_path` and
+`clip_count`.
 <!-- examples:end -->
 
diff --git a/website/docs/reference/tools/index.md b/website/docs/reference/tools/index.md
index 319f7d0e4..c3d40d57f 100644
--- a/website/docs/reference/tools/index.md
+++ b/website/docs/reference/tools/index.md
@@ -13,9 +13,9 @@ description: Auto-generated catalog of every MCP for Unity tool, grouped by doma
 Every tool MCP for Unity exposes, generated directly from the Python `@mcp_for_unity_tool` registry under `Server/src/services/tools/`.
 
 ## `animation` &nbsp; (2 tools)
-Animator control & AnimationClip creation
+Animator control, AnimationClip creation & 2D sprite-sheet animation
 - **[`manage_animation`](./animation/manage_animation.md)** — Manage Unity animation: Animator control and AnimationClip creation.
-- **[`manage_sprite`](./animation/manage_sprite.md)** — 2D sprite animation tool. get_info: read sprite import settings and return the sheet as an image block for vision analysis; the slice list is paged (page_size / cursor). slice_sheet: apply grid slicing to a sprite sheet. setup_clips: cre…
+- **[`manage_sprite`](./animation/manage_sprite.md)** — Slice 2D sprite sheets and build AnimationClips and an AnimatorController from the frames.
 
 ## `asset_gen` &nbsp; (6 tools)
 AI asset generation – 3D model gen/import, 2D image gen & audio gen (bring-your-own-key)