From dabea374b1ee89d084e93f95f05f56c1cadb8b14 Mon Sep 17 00:00:00 2001
From: Meta Vens <rwvens@hotmail.com>
Date: Fri, 10 Jul 2026 16:28:10 +0100
Subject: [PATCH] Complete fields ABI evidence

---
 plugins/eve-plugin-fields/plugin-abi-fixture.json | 6 +++---
 plugins/eve-plugin-fields/src/plugin.mjs          | 1 +
 plugins/eve-plugin-fields/test/plugin.test.mjs    | 1 +
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/plugins/eve-plugin-fields/plugin-abi-fixture.json b/plugins/eve-plugin-fields/plugin-abi-fixture.json
index d75aba9..c98a2a8 100644
--- a/plugins/eve-plugin-fields/plugin-abi-fixture.json
+++ b/plugins/eve-plugin-fields/plugin-abi-fixture.json
@@ -8,9 +8,9 @@
   "responseSchema": "gamecult.eve.plugin_abi.response.v1",
   "authority": "EvePlugins owns field semantics; providers own sampled field state and runtimes own native projection.",
   "operations": [
-    { "operation": "describe", "input": {}, "expect": { "pluginId": "fields.surface", "componentKinds": ["field.surface2d", "gravity.surface"], "commands": [] } },
-    { "operation": "validate", "input": { "componentKinds": ["field.surface2d", "world.scene3d"], "document": { "schema": "gamecult.fields.surface2d.v1", "bounds": { "minX": -1, "minY": -1, "maxX": 1, "maxY": 1 } } }, "expect": { "acceptedComponentKinds": ["field.surface2d"], "rejectedComponentKinds": ["world.scene3d"], "validDocument": true } },
+    { "operation": "describe", "input": {}, "expect": { "pluginId": "fields.surface", "componentKinds": ["field.surface2d", "gravity.surface"], "commands": [], "capabilities": ["field.surface2d", "gravity.surface", "field.scalar", "field.vector", "field.objects"] } },
+    { "operation": "validate", "input": { "componentKinds": ["field.surface2d", "gravity.surface", "world.scene3d"], "document": { "schema": "gamecult.fields.surface2d.v1", "bounds": { "minX": -1, "minY": -1, "maxX": 1, "maxY": 1 } } }, "expect": { "acceptedComponentKinds": ["field.surface2d", "gravity.surface"], "rejectedComponentKinds": ["world.scene3d"], "validDocument": true } },
     { "operation": "project", "input": { "document": { "schema": "gamecult.fields.surface2d.v1", "fieldId": "fixture.field", "bounds": { "minX": -1, "minY": -1, "maxX": 1, "maxY": 1 }, "channels": [{ "channelId": "height", "kind": "scalar", "documentId": "cultmesh://fixture/height", "schemaId": "gamecult.fields.scalar.v1" }] } }, "expect": { "projectionKind": "semantic-field-surface", "ownedComponentKinds": ["field.surface2d", "gravity.surface"], "providerStateMutated": false } },
-    { "operation": "measure", "input": { "document": { "schema": "gamecult.fields.surface2d.v1", "fieldId": "fixture.field", "bounds": { "minX": -1, "minY": -2, "maxX": 3, "maxY": 2 }, "channels": [] } }, "expect": { "measurementKind": "field-domain-metrics", "width": 4, "height": 4, "preservesProviderAuthority": true } }
+    { "operation": "measure", "input": { "document": { "schema": "gamecult.fields.surface2d.v1", "fieldId": "fixture.field", "bounds": { "minX": -1, "minY": -2, "maxX": 3, "maxY": 2 }, "channels": [] } }, "expect": { "measurementKind": "field-domain-metrics", "measurementOutputs": ["width", "height", "channelCount"], "width": 4, "height": 4, "preservesProviderAuthority": true } }
   ]
 }
diff --git a/plugins/eve-plugin-fields/src/plugin.mjs b/plugins/eve-plugin-fields/src/plugin.mjs
index 1659e7e..1fb84b7 100644
--- a/plugins/eve-plugin-fields/src/plugin.mjs
+++ b/plugins/eve-plugin-fields/src/plugin.mjs
@@ -62,6 +62,7 @@ export function measure(input) {
   const projection = project(input);
   return {
     measurementKind: "field-domain-metrics",
+    measurementOutputs: ["width", "height", "channelCount"],
     width: projection.bounds.maxX - projection.bounds.minX,
     height: projection.bounds.maxY - projection.bounds.minY,
     channelCount: projection.channels.length,
diff --git a/plugins/eve-plugin-fields/test/plugin.test.mjs b/plugins/eve-plugin-fields/test/plugin.test.mjs
index b1d1c27..528ca11 100644
--- a/plugins/eve-plugin-fields/test/plugin.test.mjs
+++ b/plugins/eve-plugin-fields/test/plugin.test.mjs
@@ -38,6 +38,7 @@ test("measures field domains without mutating provider state", () => {
   assert.equal(result.width, 20);
   assert.equal(result.height, 10);
   assert.equal(result.channelCount, 1);
+  assert.deepEqual(result.measurementOutputs, ["width", "height", "channelCount"]);
   assert.equal(result.preservesProviderAuthority, true);
 });