diff --git a/docs/eve-migration-roadmap.md b/docs/eve-migration-roadmap.md
index ac3bd33..f8a2271 100644
--- a/docs/eve-migration-roadmap.md
+++ b/docs/eve-migration-roadmap.md
@@ -416,10 +416,10 @@ Recently cut:
   `runtimes/incubating/eve-electron/eveelectron-split-handoff.json`. It does
   claim a provider-agnostic Electron shell surface-tree projection and command
   surface, but not packaged rendering, embedded document rendering, plugin
-  projection, or capture. The handoff draws the line between the generic shell
-  and Aetheria's Starbridge RTS product client, and the split-target consumer
-  smoke keeps release, packaged rendering, embedded document rendering, and
-  capture proofs visible as blockers.
+  projection, or captured window artifacts. The handoff draws the line between
+  the generic shell and Aetheria's Starbridge RTS product client, and the
+  split-target consumer smoke keeps release, packaged rendering, embedded
+  document rendering, and capture artifact proofs visible as blockers.
 - EveElectron now has a direct split handoff smoke at
   `scripts/run-eveelectron-split-handoff-smoke.ps1`. The smoke verifies the
   current generic shell, command, and world-surface lowering paths, the observed
@@ -431,8 +431,11 @@ Recently cut:
   lifecycle smoke at `scripts/run-eveelectron-lifecycle-smoke.ps1`. The
   manifest declares provider advertisement consumption, command transport, and
   surface-tree projection, claims `electron-shell` world/editor lowering, and
-  still keeps package release, packaged window rendering, plugin projection,
-  and Electron window capture as pending EveElectron work.
+  now carries an executable capture request contract through
+  `tools/eveelectron/eveelectron-capture-contract.mjs` and
+  `scripts/run-eveelectron-capture-contract-smoke.ps1`. Package release,
+  packaged window rendering, plugin projection, and actual Electron window
+  capture artifacts remain pending EveElectron work.
 - Electron and TUI pending lifecycle details now live in their runtime
   capability manifests rather than being duplicated in
   `tools/parity/parity-manifest.json`. The parity ledger points at the
@@ -493,6 +496,16 @@ Recently cut:
   `scripts/run-eveunity-capture-contract-smoke.ps1` proves that request path
   without pretending a Unity PNG has been captured. The actual capture artifact
   remains a split blocker for EveUnity.
+- EveElectron capture lifecycle now carries the same kind of structured pending
+  capture contract. `captureContract` names the Electron shell runtime, capture
+  kind, PNG artifact pattern, conformance attachment point, required Aetheria
+  provider surface, request schema, request builder, advertisement input, and
+  authority rule. `tools/eveelectron/eveelectron-capture-contract.mjs` builds a
+  `gamecult.eve.runtime_capture_request.v1` request from the runtime capability
+  manifest and provider advertisement, and
+  `scripts/run-eveelectron-capture-contract-smoke.ps1` proves that request path
+  without pretending an Electron window PNG has been captured. The actual
+  capture artifact remains a split blocker for EveElectron.
 - Runtime-owner conformance consumption now asserts EveUnity lifecycle stage
   evidence directly. The generic consumer supports
   `--expect-runtime-lifecycle-status` and
diff --git a/docs/parity-testing-harness.md b/docs/parity-testing-harness.md
index 43075eb..4ba2421 100644
--- a/docs/parity-testing-harness.md
+++ b/docs/parity-testing-harness.md
@@ -303,9 +303,10 @@ provider-agnostic shell exists. The same smoke asserts that the Aetheria
 Electron source paths named by the handoff currently exist as
 `observed-provider` sources, so the extraction pressure is visible without
 turning those paths into EveElectron authority. The Electron runtime now claims
-a narrow provider-advertised surface-tree command surface, while packaged
-rendering, embedded document rendering, capture, and plugin projection remain
-blockers. EveTui is also intentionally pending: it now claims a lossy
+a narrow provider-advertised surface-tree command surface and exposes a typed
+capture request contract, while packaged rendering, embedded document
+rendering, actual window capture, and plugin projection remain blockers.
+EveTui is also intentionally pending: it now claims a lossy
 provider-advertised terminal-grid command surface, while transcript/cell-grid
 capture, embedded document rendering, plugin projection, and repo graduation
 remain blockers. EveUnity includes both the active `unity-uitoolkit` package proof
diff --git a/runtimes/incubating/eve-electron/eve-runtime-capability.json b/runtimes/incubating/eve-electron/eve-runtime-capability.json
index c8279c3..0f161a4 100644
--- a/runtimes/incubating/eve-electron/eve-runtime-capability.json
+++ b/runtimes/incubating/eve-electron/eve-runtime-capability.json
@@ -110,6 +110,10 @@
       "captureContract": {
         "ownerRepo": "EveElectron",
         "runtimeId": "electron-shell",
+        "targetId": "electron-shell",
+        "requestSchema": "gamecult.eve.runtime_capture_request.v1",
+        "requestBuilder": "tools/eveelectron/eveelectron-capture-contract.mjs",
+        "advertisementPath": "web/fixtures/aetheria.provider-advertisement.json",
         "captureKind": "electron-window-png",
         "artifactKind": "png",
         "artifactPattern": "artifacts/eveelectron-capture/{stamp}/electron-shell.png",
@@ -119,7 +123,11 @@
         "authority": "Capture observes Electron projection only; provider state, command acceptance, and receipts stay provider-owned.",
         "publishProof": "Electron window capture artifact is attached to the runtime conformance report from EveElectron."
       },
-      "evidencePaths": [],
+      "evidencePaths": [
+        "tools/eveelectron/eveelectron-capture-contract.mjs",
+        "tools/eveelectron/eveelectron-capture-contract.test.mjs",
+        "scripts/run-eveelectron-capture-contract-smoke.ps1"
+      ],
       "pendingProofs": [
         "Electron window capture artifact is attached to the runtime conformance report."
       ]
diff --git a/runtimes/incubating/eve-electron/eveelectron-split-handoff.json b/runtimes/incubating/eve-electron/eveelectron-split-handoff.json
index c0ae8b6..eff8b6f 100644
--- a/runtimes/incubating/eve-electron/eveelectron-split-handoff.json
+++ b/runtimes/incubating/eve-electron/eveelectron-split-handoff.json
@@ -57,9 +57,13 @@
     {
       "id": "electron-capture-lifecycle",
       "stage": "capture",
-      "currentPaths": [],
+      "currentPaths": [
+        "tools/eveelectron/eveelectron-capture-contract.mjs",
+        "tools/eveelectron/eveelectron-capture-contract.test.mjs",
+        "scripts/run-eveelectron-capture-contract-smoke.ps1"
+      ],
       "destinationOwner": "EveElectron",
-      "replacementProof": "EveElectron attaches desktop-window capture artifacts to conformance output for at least one non-Aetheria provider and one Aetheria scenario."
+      "replacementProof": "EveElectron builds a provider-advertisement-backed capture request now; the split is not complete until the EveElectron repo attaches desktop-window capture artifacts to conformance output for at least one non-Aetheria provider and one Aetheria scenario."
     }
   ],
   "contractInputs": [
diff --git a/scripts/run-eveelectron-capture-contract-smoke.ps1 b/scripts/run-eveelectron-capture-contract-smoke.ps1
new file mode 100644
index 0000000..2bc2f71
--- /dev/null
+++ b/scripts/run-eveelectron-capture-contract-smoke.ps1
@@ -0,0 +1,99 @@
+param(
+  [string] $CapabilityManifestPath = "runtimes\incubating\eve-electron\eve-runtime-capability.json",
+  [string] $AdvertisementPath = "web\fixtures\aetheria.provider-advertisement.json",
+  [string] $OutputPath = "artifacts\eveelectron-capture-contract\latest\capture-request.json",
+  [string] $Stamp = "smoke"
+)
+
+$ErrorActionPreference = "Stop"
+
+$projectRoot = Split-Path -Parent $PSScriptRoot
+$absoluteCapabilityPath = if ([System.IO.Path]::IsPathRooted($CapabilityManifestPath)) {
+  $CapabilityManifestPath
+} else {
+  Join-Path $projectRoot $CapabilityManifestPath
+}
+$absoluteAdvertisementPath = if ([System.IO.Path]::IsPathRooted($AdvertisementPath)) {
+  $AdvertisementPath
+} else {
+  Join-Path $projectRoot $AdvertisementPath
+}
+$absoluteOutputPath = if ([System.IO.Path]::IsPathRooted($OutputPath)) {
+  $OutputPath
+} else {
+  Join-Path $projectRoot $OutputPath
+}
+
+foreach ($path in @($absoluteCapabilityPath, $absoluteAdvertisementPath)) {
+  if (-not (Test-Path -LiteralPath $path)) {
+    throw "EveElectron capture contract input not found: $path"
+  }
+}
+
+$manifest = Get-Content -LiteralPath $absoluteCapabilityPath -Raw | ConvertFrom-Json
+$captureContract = $manifest.lifecycle.capture.captureContract
+if ($null -eq $captureContract) {
+  throw "EveElectron capture contract missing lifecycle.capture.captureContract"
+}
+foreach ($field in @("ownerRepo", "runtimeId", "targetId", "requestSchema", "requestBuilder", "advertisementPath", "captureKind", "artifactKind", "artifactPattern", "conformanceAttachment", "requiredProvider", "requiredSurface", "authority", "publishProof")) {
+  if (-not $captureContract.$field) {
+    throw "EveElectron capture contract missing $field"
+  }
+}
+if ($captureContract.ownerRepo -ne "EveElectron") {
+  throw "Unexpected EveElectron capture owner: $($captureContract.ownerRepo)"
+}
+if ($captureContract.runtimeId -ne "electron-shell") {
+  throw "Unexpected EveElectron capture runtime: $($captureContract.runtimeId)"
+}
+if ($captureContract.targetId -ne "electron-shell") {
+  throw "Unexpected EveElectron capture target: $($captureContract.targetId)"
+}
+if ($captureContract.requestSchema -ne "gamecult.eve.runtime_capture_request.v1") {
+  throw "Unexpected EveElectron capture request schema: $($captureContract.requestSchema)"
+}
+
+$builderPath = Join-Path $projectRoot $captureContract.requestBuilder
+if (-not (Test-Path -LiteralPath $builderPath)) {
+  throw "EveElectron capture request builder not found: $($captureContract.requestBuilder)"
+}
+if ((Join-Path $projectRoot $captureContract.advertisementPath) -ne $absoluteAdvertisementPath) {
+  throw "EveElectron capture advertisement path mismatch: $($captureContract.advertisementPath) vs $AdvertisementPath"
+}
+
+node --test (Join-Path $projectRoot "tools\eveelectron\eveelectron-capture-contract.test.mjs")
+if ($LASTEXITCODE -ne 0) {
+  throw "EveElectron capture contract tests failed with exit code $LASTEXITCODE"
+}
+
+node $builderPath --capability $absoluteCapabilityPath --advertisement $absoluteAdvertisementPath --output $absoluteOutputPath --stamp $Stamp
+if ($LASTEXITCODE -ne 0) {
+  throw "EveElectron capture request builder failed with exit code $LASTEXITCODE"
+}
+if (-not (Test-Path -LiteralPath $absoluteOutputPath)) {
+  throw "EveElectron capture request was not written: $absoluteOutputPath"
+}
+
+$request = Get-Content -LiteralPath $absoluteOutputPath -Raw | ConvertFrom-Json
+foreach ($expectation in @(
+  @{ field = "schema"; value = "gamecult.eve.runtime_capture_request.v1" },
+  @{ field = "runtimeId"; value = "electron-shell" },
+  @{ field = "ownerRepo"; value = "EveElectron" },
+  @{ field = "providerId"; value = "aetheria" },
+  @{ field = "surfaceId"; value = "aetheria.daemon.game" },
+  @{ field = "targetId"; value = "electron-shell" },
+  @{ field = "commandBoundary"; value = "aetheria.daemon.commands" },
+  @{ field = "receiptSchema"; value = "aetheria.eve_command_acceptance_status.v1" },
+  @{ field = "captureKind"; value = "electron-window-png" },
+  @{ field = "artifactKind"; value = "png" },
+  @{ field = "conformanceAttachment"; value = "runtime.captureArtifacts[]" }
+)) {
+  if ($request.($expectation.field) -ne $expectation.value) {
+    throw "EveElectron capture request $($expectation.field) expected $($expectation.value) got $($request.($expectation.field))"
+  }
+}
+if ($request.artifactPath -ne "artifacts/eveelectron-capture/$Stamp/electron-shell.png") {
+  throw "Unexpected EveElectron capture artifact path: $($request.artifactPath)"
+}
+
+Write-Host "EveElectron capture contract smoke passed: $absoluteOutputPath"
diff --git a/scripts/run-eveelectron-lifecycle-smoke.ps1 b/scripts/run-eveelectron-lifecycle-smoke.ps1
index 318d11d..530ba90 100644
--- a/scripts/run-eveelectron-lifecycle-smoke.ps1
+++ b/scripts/run-eveelectron-lifecycle-smoke.ps1
@@ -138,13 +138,33 @@ foreach ($pathProperty in @("runnerScript", "consumerProject")) {
 }
 
 $captureContract = $manifest.lifecycle.capture.captureContract
-foreach ($field in @("ownerRepo", "runtimeId", "captureKind", "artifactKind", "artifactPattern", "conformanceAttachment", "requiredProvider", "requiredSurface", "authority", "publishProof")) {
+foreach ($field in @("ownerRepo", "runtimeId", "targetId", "requestSchema", "requestBuilder", "advertisementPath", "captureKind", "artifactKind", "artifactPattern", "conformanceAttachment", "requiredProvider", "requiredSurface", "authority", "publishProof")) {
   if (-not $captureContract.$field) {
     throw "EveElectron capture contract missing $field"
   }
 }
+if ($captureContract.runtimeId -ne "electron-shell") {
+  throw "EveElectron capture contract has unexpected runtime: $($captureContract.runtimeId)"
+}
+if ($captureContract.targetId -ne "electron-shell") {
+  throw "EveElectron capture contract has unexpected target: $($captureContract.targetId)"
+}
+if ($captureContract.requestSchema -ne "gamecult.eve.runtime_capture_request.v1") {
+  throw "EveElectron capture contract has unexpected request schema: $($captureContract.requestSchema)"
+}
+if ($captureContract.captureKind -ne "electron-window-png") {
+  throw "EveElectron capture contract has unexpected capture kind: $($captureContract.captureKind)"
+}
+foreach ($pathProperty in @("requestBuilder", "advertisementPath")) {
+  $relativePath = $captureContract.$pathProperty
+  $absolutePath = Join-Path $projectRoot $relativePath
+  if (-not (Test-Path -LiteralPath $absolutePath)) {
+    throw "EveElectron capture contract $pathProperty does not exist: $relativePath"
+  }
+}
 
 & (Join-Path $projectRoot "scripts\run-eveelectron-split-handoff-smoke.ps1")
 & (Join-Path $projectRoot "scripts\run-eveelectron-provider-shell-smoke.ps1")
+& (Join-Path $projectRoot "scripts\run-eveelectron-capture-contract-smoke.ps1")
 
 Write-Host "EveElectron lifecycle smoke passed: $absoluteManifestPath"
diff --git a/scripts/run-eveelectron-provider-shell-smoke.ps1 b/scripts/run-eveelectron-provider-shell-smoke.ps1
index c757034..fd9379b 100644
--- a/scripts/run-eveelectron-provider-shell-smoke.ps1
+++ b/scripts/run-eveelectron-provider-shell-smoke.ps1
@@ -67,7 +67,9 @@ foreach ($evidencePath in @($worldSurfaceLoweringClaim.evidencePaths)) {
 $expectedFiles = @(
   "runtimes\incubating\eve-electron\package.json",
   "runtimes\incubating\eve-electron\src\eve-electron-shell.mjs",
-  "runtimes\incubating\eve-electron\test\eve-electron-shell.test.mjs"
+  "runtimes\incubating\eve-electron\test\eve-electron-shell.test.mjs",
+  "scripts\run-eveelectron-capture-contract-smoke.ps1",
+  "tools\eveelectron\eveelectron-capture-contract.mjs"
 )
 
 foreach ($relativePath in $expectedFiles) {
diff --git a/scripts/run-eveelectron-split-handoff-smoke.ps1 b/scripts/run-eveelectron-split-handoff-smoke.ps1
index b955be9..2b98714 100644
--- a/scripts/run-eveelectron-split-handoff-smoke.ps1
+++ b/scripts/run-eveelectron-split-handoff-smoke.ps1
@@ -69,6 +69,14 @@ foreach ($id in @("electron-shell-runtime", "electron-command-transport", "elect
   }
 }
 
+$captureMoveSet = $moveSets | Where-Object { $_.id -eq "electron-capture-lifecycle" } | Select-Object -First 1
+if (-not $captureMoveSet) {
+  throw "EveElectron split handoff missing move set: electron-capture-lifecycle"
+}
+if (@($captureMoveSet.currentPaths).Count -eq 0) {
+  throw "EveElectron capture lifecycle move set must declare currentPaths"
+}
+
 foreach ($contract in @(
   "gamecult.eve.surface.v1",
   "gamecult.eve.command.v1",
diff --git a/scripts/run-runtime-owner-conformance-consumer-smoke.ps1 b/scripts/run-runtime-owner-conformance-consumer-smoke.ps1
index 9317f92..4f30488 100644
--- a/scripts/run-runtime-owner-conformance-consumer-smoke.ps1
+++ b/scripts/run-runtime-owner-conformance-consumer-smoke.ps1
@@ -167,6 +167,10 @@ node $consumerScript $consumerExport `
   --expect-runtime-lifecycle-field "electron-shell:test:testContract.runnerKind:electron-provider-shell-smoke" `
   --expect-runtime-lifecycle-field "electron-shell:test:testContract.runnerScript:scripts/run-eveelectron-provider-shell-smoke.ps1" `
   --expect-runtime-lifecycle-field "electron-shell:capture:captureContract.captureKind:electron-window-png" `
+  --expect-runtime-lifecycle-field "electron-shell:capture:captureContract.targetId:electron-shell" `
+  --expect-runtime-lifecycle-field "electron-shell:capture:captureContract.requestSchema:gamecult.eve.runtime_capture_request.v1" `
+  --expect-runtime-lifecycle-field "electron-shell:capture:captureContract.requestBuilder:tools/eveelectron/eveelectron-capture-contract.mjs" `
+  --expect-runtime-lifecycle-field "electron-shell:capture:captureContract.advertisementPath:web/fixtures/aetheria.provider-advertisement.json" `
   --expect-runtime-lifecycle-field "electron-shell:capture:captureContract.requiredSurface:aetheria.daemon.game" `
   --expect-runtime-lifecycle-status tui:release:pending-tui-package `
   --expect-runtime-lifecycle-status tui:test:provider-shell-contract-skeleton `
diff --git a/scripts/run-split-target-conformance-consumer-smoke.ps1 b/scripts/run-split-target-conformance-consumer-smoke.ps1
index 8902893..ec61f37 100644
--- a/scripts/run-split-target-conformance-consumer-smoke.ps1
+++ b/scripts/run-split-target-conformance-consumer-smoke.ps1
@@ -64,6 +64,7 @@ try {
     --expect-split-handoff-move EveElectron:electron-shell:electron-shell-runtime:current:exists:eve-electron-shell.mjs `
     --expect-split-handoff-move EveElectron:electron-shell:electron-command-transport:current:exists:eve-electron-shell.mjs `
     --expect-split-handoff-move EveElectron:electron-shell:electron-world-surface-lowering:current:exists:eve-electron-shell.mjs `
+    --expect-split-handoff-move EveElectron:electron-shell:electron-capture-lifecycle:current:exists:eveelectron-capture-contract.mjs `
     --expect-split-handoff-move EveElectron:electron-shell:electron-shell-runtime:observed-provider:exists:Aetheria.Rts.Web/Electron `
     --expect-split-handoff-move EveElectron:electron-shell:electron-command-transport:observed-provider:exists:Aetheria.Rts.Web/Client/app.ts `
     --expect-split-handoff-move EveElectron:electron-shell:electron-world-surface-lowering:observed-provider:exists:Aetheria.Rts.Web/Client `
diff --git a/tools/eveelectron/eveelectron-capture-contract.mjs b/tools/eveelectron/eveelectron-capture-contract.mjs
new file mode 100644
index 0000000..559d97d
--- /dev/null
+++ b/tools/eveelectron/eveelectron-capture-contract.mjs
@@ -0,0 +1,122 @@
+import { mkdirSync, readFileSync, writeFileSync } from "node:fs";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+
+export function buildElectronCaptureRequest({
+  advertisement,
+  capabilityManifest,
+  advertisementPath = "",
+  capabilityManifestPath = "",
+  stamp = new Date().toISOString().replace(/[:.]/g, "-"),
+} = {}) {
+  if (!advertisement || typeof advertisement !== "object") {
+    throw new Error("advertisement is required");
+  }
+  if (!capabilityManifest || typeof capabilityManifest !== "object") {
+    throw new Error("capabilityManifest is required");
+  }
+
+  const captureContract = capabilityManifest.lifecycle?.capture?.captureContract;
+  if (!captureContract) {
+    throw new Error("capability manifest is missing lifecycle.capture.captureContract");
+  }
+
+  if (advertisement.providerId !== captureContract.requiredProvider) {
+    throw new Error(
+      `capture provider mismatch: expected ${captureContract.requiredProvider} got ${advertisement.providerId || "missing"}`,
+    );
+  }
+
+  const targetId = captureContract.targetId || captureContract.runtimeId;
+  const surface = (advertisement.surfaces || []).find(candidate => candidate.surfaceId === captureContract.requiredSurface);
+  if (!surface) {
+    throw new Error(`capture surface not advertised: ${captureContract.requiredSurface}`);
+  }
+
+  const loweringTargets = surface.worldInteraction?.loweringTargets || [];
+  if (!loweringTargets.includes(targetId)) {
+    throw new Error(`surface ${surface.surfaceId} does not advertise lowering target ${targetId}`);
+  }
+
+  const artifactPath = replaceStamp(captureContract.artifactPattern, stamp);
+
+  return {
+    schema: captureContract.requestSchema || "gamecult.eve.runtime_capture_request.v1",
+    runtimeId: capabilityManifest.runtimeId,
+    ownerRepo: captureContract.ownerRepo,
+    providerId: advertisement.providerId,
+    surfaceId: surface.surfaceId,
+    surfaceKind: surface.surfaceKind || "",
+    targetId,
+    projectionKind: surface.worldInteraction?.projectionKind || "",
+    commandBoundary: surface.worldInteraction?.commandBoundary || "",
+    receiptSchema: surface.worldInteraction?.receiptSchema || "",
+    captureKind: captureContract.captureKind,
+    artifactKind: captureContract.artifactKind,
+    artifactPath,
+    conformanceAttachment: captureContract.conformanceAttachment,
+    authority: captureContract.authority,
+    sourceAdvertisementPath: advertisementPath,
+    sourceCapabilityManifestPath: capabilityManifestPath,
+    issuedAtUtc: stamp,
+  };
+}
+
+export function loadJsonFile(filePath) {
+  return JSON.parse(readFileSync(filePath, "utf8"));
+}
+
+export function writeCaptureRequest(request, outputPath) {
+  mkdirSync(path.dirname(outputPath), { recursive: true });
+  writeFileSync(outputPath, `${JSON.stringify(request, null, 2)}\n`, "utf8");
+}
+
+function replaceStamp(pattern, stamp) {
+  if (!pattern || !pattern.includes("{stamp}")) {
+    throw new Error(`capture artifact pattern must include {stamp}: ${pattern || "missing"}`);
+  }
+  return pattern.replace("{stamp}", stamp);
+}
+
+function parseArgs(argv) {
+  const args = {};
+  for (let index = 0; index < argv.length; index += 1) {
+    const value = argv[index];
+    if (!value.startsWith("--")) continue;
+    const key = value.slice(2);
+    const next = argv[index + 1];
+    if (!next || next.startsWith("--")) {
+      args[key] = true;
+    } else {
+      args[key] = next;
+      index += 1;
+    }
+  }
+  return args;
+}
+
+function runCli() {
+  const args = parseArgs(process.argv.slice(2));
+  for (const required of ["advertisement", "capability", "output"]) {
+    if (!args[required]) {
+      throw new Error(`missing required --${required}`);
+    }
+  }
+
+  const stamp = args.stamp || new Date().toISOString().replace(/[:.]/g, "-");
+  const request = buildElectronCaptureRequest({
+    advertisement: loadJsonFile(args.advertisement),
+    capabilityManifest: loadJsonFile(args.capability),
+    advertisementPath: args.advertisement,
+    capabilityManifestPath: args.capability,
+    stamp,
+  });
+  writeCaptureRequest(request, args.output);
+  process.stdout.write(`${args.output}\n`);
+}
+
+const invokedPath = process.argv[1] ? path.resolve(process.argv[1]) : "";
+const modulePath = fileURLToPath(import.meta.url);
+if (invokedPath === modulePath) {
+  runCli();
+}
diff --git a/tools/eveelectron/eveelectron-capture-contract.test.mjs b/tools/eveelectron/eveelectron-capture-contract.test.mjs
new file mode 100644
index 0000000..3587ceb
--- /dev/null
+++ b/tools/eveelectron/eveelectron-capture-contract.test.mjs
@@ -0,0 +1,40 @@
+import assert from "node:assert/strict";
+import { readFileSync } from "node:fs";
+import test from "node:test";
+import { buildElectronCaptureRequest } from "./eveelectron-capture-contract.mjs";
+
+const advertisement = JSON.parse(readFileSync(new URL("../../web/fixtures/aetheria.provider-advertisement.json", import.meta.url), "utf8"));
+const capabilityManifest = JSON.parse(readFileSync(new URL("../../runtimes/incubating/eve-electron/eve-runtime-capability.json", import.meta.url), "utf8"));
+
+test("builds Electron shell capture request from provider advertisement", () => {
+  const request = buildElectronCaptureRequest({
+    advertisement,
+    capabilityManifest,
+    advertisementPath: "web/fixtures/aetheria.provider-advertisement.json",
+    capabilityManifestPath: "runtimes/incubating/eve-electron/eve-runtime-capability.json",
+    stamp: "smoke",
+  });
+
+  assert.equal(request.schema, "gamecult.eve.runtime_capture_request.v1");
+  assert.equal(request.runtimeId, "electron-shell");
+  assert.equal(request.ownerRepo, "EveElectron");
+  assert.equal(request.providerId, "aetheria");
+  assert.equal(request.surfaceId, "aetheria.daemon.game");
+  assert.equal(request.targetId, "electron-shell");
+  assert.equal(request.projectionKind, "provider-authored-world-surface");
+  assert.equal(request.commandBoundary, "aetheria.daemon.commands");
+  assert.equal(request.receiptSchema, "aetheria.eve_command_acceptance_status.v1");
+  assert.equal(request.artifactPath, "artifacts/eveelectron-capture/smoke/electron-shell.png");
+  assert.match(request.authority, /provider state/);
+});
+
+test("rejects capture request when the surface does not advertise Electron shell", () => {
+  const withoutTarget = structuredClone(advertisement);
+  const surface = withoutTarget.surfaces.find(candidate => candidate.surfaceId === "aetheria.daemon.game");
+  surface.worldInteraction.loweringTargets = surface.worldInteraction.loweringTargets.filter(target => target !== "electron-shell");
+
+  assert.throws(
+    () => buildElectronCaptureRequest({ advertisement: withoutTarget, capabilityManifest, stamp: "smoke" }),
+    /does not advertise lowering target electron-shell/,
+  );
+});
diff --git a/tools/parity/parity-manifest.json b/tools/parity/parity-manifest.json
index cbc8382..58d2492 100644
--- a/tools/parity/parity-manifest.json
+++ b/tools/parity/parity-manifest.json
@@ -758,7 +758,10 @@
         "runtimes/incubating/eve-electron/eveelectron-split-handoff.json",
         "runtimes/incubating/eve-electron/eve-runtime-capability.json",
         "scripts/run-eveelectron-lifecycle-smoke.ps1",
-        "scripts/run-eveelectron-provider-shell-smoke.ps1"
+        "scripts/run-eveelectron-provider-shell-smoke.ps1",
+        "scripts/run-eveelectron-capture-contract-smoke.ps1",
+        "tools/eveelectron/eveelectron-capture-contract.mjs",
+        "tools/eveelectron/eveelectron-capture-contract.test.mjs"
       ],
       "expectedSourceSymbols": [
         {
@@ -768,6 +771,14 @@
         {
           "path": "runtimes/incubating/eve-electron/test/eve-electron-shell.test.mjs",
           "contains": ["selects the active advertised provider surface", "lowers provider surface trees into an Electron shell projection", "rejects surface documents that do not match the advertised target", "command intents carry provider-advertised boundaries", "aetheria.daemon.commands", "aetheria.eve_command_acceptance_status.v1"]
+        },
+        {
+          "path": "tools/eveelectron/eveelectron-capture-contract.mjs",
+          "contains": ["buildElectronCaptureRequest", "gamecult.eve.runtime_capture_request.v1", "loweringTargets", "artifactPattern", "writeCaptureRequest"]
+        },
+        {
+          "path": "tools/eveelectron/eveelectron-capture-contract.test.mjs",
+          "contains": ["builds Electron shell capture request from provider advertisement", "rejects capture request when the surface does not advertise Electron shell", "electron-shell", "aetheria.daemon.commands"]
         }
       ],
       "capture": {