diff --git a/src/main/java/com/mythlane/gravityflip/wand/spike/WandAssetSpike.java b/src/main/java/com/mythlane/gravityflip/wand/spike/WandAssetSpike.java
deleted file mode 100644
index 7720566..0000000
--- a/src/main/java/com/mythlane/gravityflip/wand/spike/WandAssetSpike.java
+++ /dev/null
@@ -1,71 +0,0 @@
-package com.mythlane.gravityflip.wand.spike;
-
-/**
- * <h2>04-00 Spike artifact — NOT WIRED INTO THE PLUGIN.</h2>
- *
- * <p>This class is intentionally <strong>not referenced</strong> from
- * {@code GravityFlipPlugin}. It exists purely as an executable-looking
- * documentation of the empirical investigation that produced
- * {@code .planning/phases/04-wand-commands/04-00-SPIKE-RESULT.md}.
- *
- * <p><b>Locked decision (see SPIKE-RESULT.md):</b> we will <em>not</em> register
- * a brand-new {@code Item} asset store from a plugin — no decompiled builtin
- * plugin does that, and it risks duplicating the core's Item store. Instead,
- * Plan 04-01 will:
- *
- * <ol>
- *   <li>Subclass {@link com.hypixel.hytale.server.core.modules.interaction.interaction.config.SimpleInstantInteraction}
- *       as {@code GravityFlipWandInteraction} with its own {@code BuilderCodec}.</li>
- *   <li>In {@code GravityFlipPlugin.setup()}, call:
- *       <pre>{@code
- *       getCodecRegistry(Interaction.CODEC)
- *           .register("GravityFlipWand",
- *                     GravityFlipWandInteraction.class,
- *                     GravityFlipWandInteraction.CODEC);
- *       }</pre>
- *       This is the pattern used by PortalsPlugin:74, CreativeHubPlugin:149,
- *       InstancesPlugin:158, CraftingPlugin:130, TeleporterPlugin:73,
- *       ObjectivePlugin:210-211 — 8+ builtin precedents.</li>
- *   <li>Plan 04-02 will identify the concrete vanilla itemID to hand out in
- *       {@code /gravityflip wand} by iterating
- *       {@code Item.getAssetStore().getAssetMap()} at runtime (disposable
- *       probe), then hardcode the chosen itemID (likely a hatchet/axe variant
- *       that already exposes Primary + Secondary interactions).</li>
- * </ol>
- *
- * <p>The code below is illustrative only. It compiles against stubs in
- * javadoc and is <strong>not invoked</strong>. Delete this class at the start
- * of Plan 04-01.
- *
- * <h3>Why VANILLA_COPY and not a brand-new Item JSON?</h3>
- *
- * <p>Hypothesised pattern (rejected):
- * <pre>{@code
- * // UNPROVEN: no builtin plugin does this for Item.class.
- * getAssetRegistry().register(
- *     HytaleAssetStore.builder(Item.class, Item.ASSET_MAP)
- *                     .setPath("Items")
- *                     .build());
- * }</pre>
- *
- * <p>User-confirmed pattern (adopted):
- * <blockquote>
- *   « On peut copier un item vanilla genre la hache et changer des propriétés
- *   genre couleur etc. » — 2026-04-23
- * </blockquote>
- *
- * <p>Copy an existing vanilla item (hatchet / pickaxe / sword — anything
- * exposing {@code Primary} + {@code Secondary}) and hijack the click
- * behaviour via the {@code Interaction.CODEC} registry. Visual polish
- * (custom colour / display name) can be layered later without blocking v1.
- */
-public final class WandAssetSpike {
-
-    /** Not callable. Not invoked. Documentation-only. */
-    private WandAssetSpike() {
-        throw new UnsupportedOperationException(
-                "WandAssetSpike is a 04-00 documentation artifact. "
-                + "See .planning/phases/04-wand-commands/04-00-SPIKE-RESULT.md. "
-                + "Delete this class at the start of Plan 04-01.");
-    }
-}