diff --git a/apps/electrochem/private/chronoOverlayWorkflow.m b/apps/electrochem/chrono_overlay/+chrono_overlay/+core/dispatch.m
similarity index 94%
rename from apps/electrochem/private/chronoOverlayWorkflow.m
rename to apps/electrochem/chrono_overlay/+chrono_overlay/+core/dispatch.m
index 43b3e48..688e2d5 100644
--- a/apps/electrochem/private/chronoOverlayWorkflow.m
+++ b/apps/electrochem/chrono_overlay/+chrono_overlay/+core/dispatch.m
@@ -1,12 +1,11 @@
-% App-owned chrono overlay workflow helper dispatch. Expected caller:
-% labkit_ChronoOverlay_app callbacks and workflow tests.
+% App-owned chrono overlay helper core dispatch. Expected caller:
+% labkit_ChronoOverlay_app callbacks and package tests.
 % Inputs are a command string plus the original helper arguments; outputs match
 % the selected helper. Side effects are limited to drawing app-owned overlay
 % plots on caller axes.
-function varargout = chronoOverlayWorkflow(command, varargin)
-%CHRONOOVERLAYWORKFLOW Dispatch app-owned chrono overlay helpers.
-% Expected caller: labkit_ChronoOverlay_app callbacks and temporary compatibility
-% workflow tests. Inputs are a command string plus the original helper arguments.
+function varargout = dispatch(command, varargin)
+%DISPATCH Route chrono overlay package wrapper calls to app-owned helpers.
+% Expected caller: labkit_ChronoOverlay_app callbacks and % package tests. Inputs are a command string plus the original helper arguments.
 % Outputs match the selected helper. Side effects are limited to drawing
 % app-owned overlay plots on caller axes.
 
diff --git a/apps/electrochem/chrono_overlay/+chrono_overlay/+export/buildOverlayExportTable.m b/apps/electrochem/chrono_overlay/+chrono_overlay/+export/buildOverlayExportTable.m
new file mode 100644
index 0000000..e3b5f25
--- /dev/null
+++ b/apps/electrochem/chrono_overlay/+chrono_overlay/+export/buildOverlayExportTable.m
@@ -0,0 +1,6 @@
+% Expected caller: chrono overlay app runner and export tests. Inputs are aligned
+% chrono item structs. Output is the stable overlay export table. No file side
+% effects.
+function T = buildOverlayExportTable(items)
+    T = chrono_overlay.core.dispatch("buildOverlayExportTable", items);
+end
diff --git a/apps/electrochem/chrono_overlay/+chrono_overlay/+ops/alignByPulseGap.m b/apps/electrochem/chrono_overlay/+chrono_overlay/+ops/alignByPulseGap.m
new file mode 100644
index 0000000..ed113e1
--- /dev/null
+++ b/apps/electrochem/chrono_overlay/+chrono_overlay/+ops/alignByPulseGap.m
@@ -0,0 +1,6 @@
+% Expected caller: chrono overlay app runner and unit tests. Inputs are one
+% chrono item struct with time/current/voltage and pulse fields. Outputs return
+% the aligned item and status message. No file or UI side effects.
+function [item, msg] = alignByPulseGap(item)
+    [item, msg] = chrono_overlay.core.dispatch("alignByPulseGap", item);
+end
diff --git a/apps/electrochem/private/runChronoOverlayApp.m b/apps/electrochem/chrono_overlay/+chrono_overlay/+ui/runApp.m
similarity index 96%
rename from apps/electrochem/private/runChronoOverlayApp.m
rename to apps/electrochem/chrono_overlay/+chrono_overlay/+ui/runApp.m
index ff3849b..66de6cf 100644
--- a/apps/electrochem/private/runChronoOverlayApp.m
+++ b/apps/electrochem/chrono_overlay/+chrono_overlay/+ui/runApp.m
@@ -2,7 +2,7 @@
 % Input is the debug context prepared by the public launcher. Output is the app
 % figure. Side effects are GUI creation, user-driven file I/O, exports,
 % plotting, and debug trace attachment exactly as in the original entrypoint body.
-function fig = runChronoOverlayApp(debugLog)
+function fig = runApp(debugLog)
 %RUNCHRONOOVERLAYAPP Build and run the app body.
 
     S = struct();
@@ -160,7 +160,7 @@ function postProcessAddedItems(filepaths)
             end
 
             item = S.session.items(idx);
-            [item, alignMsg] = chronoOverlayWorkflow("alignByPulseGap", item);
+            [item, alignMsg] = chrono_overlay.ops.alignByPulseGap(item);
             S.session.items(idx) = item;
             addLog(alignMsg);
 
@@ -204,7 +204,7 @@ function refreshFileList()
 
     function refreshPlots()
         if isempty(S.items)
-            chronoOverlayWorkflow("plotVTIT", axV, axI, struct([]), plotOptions());
+            chrono_overlay.view.plotVTIT(axV, axI, struct([]), plotOptions());
             return;
         end
 
@@ -215,7 +215,7 @@ function refreshPlots()
             return;
         end
 
-        chronoOverlayWorkflow("plotVTIT", axV, axI, items, plotOptions());
+        chrono_overlay.view.plotVTIT(axV, axI, items, plotOptions());
     end
 
     function onExportCSV(~, ~)
@@ -235,7 +235,7 @@ function onExportCSV(~, ~)
             return;
         end
 
-        T = chronoOverlayWorkflow("buildOverlayExportTable", items);
+        T = chrono_overlay.export.buildOverlayExportTable(items);
         out = fullfile(p, f);
         writetable(T, out);
         addLog(sprintf('Exported CSV: %s', out));
diff --git a/apps/electrochem/chrono_overlay/+chrono_overlay/+view/plotVTIT.m b/apps/electrochem/chrono_overlay/+chrono_overlay/+view/plotVTIT.m
new file mode 100644
index 0000000..bceb18c
--- /dev/null
+++ b/apps/electrochem/chrono_overlay/+chrono_overlay/+view/plotVTIT.m
@@ -0,0 +1,6 @@
+% Expected caller: chrono overlay app runner. Inputs are voltage/current axes,
+% aligned item structs, and plot option fields. Side effects are limited to
+% redrawing the supplied axes.
+function plotVTIT(axV, axI, items, opts)
+    chrono_overlay.core.dispatch("plotVTIT", axV, axI, items, opts);
+end
diff --git a/apps/electrochem/labkit_ChronoOverlay_app.m b/apps/electrochem/chrono_overlay/labkit_ChronoOverlay_app.m
similarity index 95%
rename from apps/electrochem/labkit_ChronoOverlay_app.m
rename to apps/electrochem/chrono_overlay/labkit_ChronoOverlay_app.m
index 48af2ff..3c12b9b 100644
--- a/apps/electrochem/labkit_ChronoOverlay_app.m
+++ b/apps/electrochem/chrono_overlay/labkit_ChronoOverlay_app.m
@@ -17,7 +17,7 @@
         error('labkit_ChronoOverlay_app:TooManyOutputs', 'labkit_ChronoOverlay_app returns at most the app figure handle.');
     end
 
-    fig = runChronoOverlayApp(debugLog);
+    fig = chrono_overlay.ui.runApp(debugLog);
     if nargout >= 1
         varargout{1} = fig;
     end
diff --git a/apps/electrochem/private/cicWorkflow.m b/apps/electrochem/cic/+cic/+core/dispatch.m
similarity index 98%
rename from apps/electrochem/private/cicWorkflow.m
rename to apps/electrochem/cic/+cic/+core/dispatch.m
index 946a8b9..ec1b6df 100644
--- a/apps/electrochem/private/cicWorkflow.m
+++ b/apps/electrochem/cic/+cic/+core/dispatch.m
@@ -1,10 +1,10 @@
-% App-owned CIC workflow helper dispatch. Expected caller: labkit_CIC_app
-% callbacks and workflow tests. Inputs are a command string plus the original
+% App-owned CIC helper core dispatch. Expected caller: labkit_CIC_app
+% callbacks and package tests. Inputs are a command string plus the original
 % helper arguments; outputs match the selected helper. Side effects are limited
 % to CSV export writes and drawing app-owned plot annotations on caller axes.
-function varargout = cicWorkflow(command, varargin)
-%CICWORKFLOW Dispatch app-owned CIC analysis/export helpers.
-% Expected caller: labkit_CIC_app callbacks and workflow tests.
+function varargout = dispatch(command, varargin)
+%DISPATCH Route CIC package wrapper calls to app-owned helpers.
+% Expected caller: labkit_CIC_app callbacks and package tests.
 % Inputs are a command string plus the original helper arguments. Outputs match
 % the selected helper. Side effects are limited to CSV export writes and drawing
 % app-owned plot annotations on caller axes.
diff --git a/apps/electrochem/cic/+cic/+export/buildResultsTable.m b/apps/electrochem/cic/+cic/+export/buildResultsTable.m
new file mode 100644
index 0000000..3030a0a
--- /dev/null
+++ b/apps/electrochem/cic/+cic/+export/buildResultsTable.m
@@ -0,0 +1,6 @@
+% Expected caller: CIC app runner and export tests. Inputs are item structs and
+% display unit label. Output is the stable CIC CSV result table. No file side
+% effects.
+function T = buildResultsTable(items, unitLabel)
+    T = cic.core.dispatch("buildResultsTable", items, unitLabel);
+end
diff --git a/apps/electrochem/cic/+cic/+export/writeResultsCSV.m b/apps/electrochem/cic/+cic/+export/writeResultsCSV.m
new file mode 100644
index 0000000..af22c7f
--- /dev/null
+++ b/apps/electrochem/cic/+cic/+export/writeResultsCSV.m
@@ -0,0 +1,6 @@
+% Expected caller: CIC app runner and export tests. Inputs are item structs,
+% output filepath, and display unit label. Side effect is writing the stable CIC
+% CSV file.
+function [ok, msg] = writeResultsCSV(items, filepath, unitLabel)
+    [ok, msg] = cic.core.dispatch("writeResultsCSV", items, filepath, unitLabel);
+end
diff --git a/apps/electrochem/cic/+cic/+ops/computeCIC.m b/apps/electrochem/cic/+cic/+ops/computeCIC.m
new file mode 100644
index 0000000..0035142
--- /dev/null
+++ b/apps/electrochem/cic/+cic/+ops/computeCIC.m
@@ -0,0 +1,6 @@
+% Expected caller: CIC app runner and unit tests. Inputs are a DTA item struct
+% and CIC option struct. Output is the stable CIC analysis result struct. No file
+% or UI side effects.
+function A = computeCIC(item, opts)
+    A = cic.core.dispatch("computeCIC", item, opts);
+end
diff --git a/apps/electrochem/cic/+cic/+ops/interp1Safe.m b/apps/electrochem/cic/+cic/+ops/interp1Safe.m
new file mode 100644
index 0000000..54777d7
--- /dev/null
+++ b/apps/electrochem/cic/+cic/+ops/interp1Safe.m
@@ -0,0 +1,5 @@
+% Expected caller: CIC app plotting helpers. Inputs are vectors x/y and query
+% points. Output mirrors the app-owned safe interpolation helper. No side effects.
+function v = interp1Safe(x, y, xq)
+    v = cic.core.dispatch("interp1Safe", x, y, xq);
+end
diff --git a/apps/electrochem/private/runCICApp.m b/apps/electrochem/cic/+cic/+ui/runApp.m
similarity index 93%
rename from apps/electrochem/private/runCICApp.m
rename to apps/electrochem/cic/+cic/+ui/runApp.m
index d987edc..da2349c 100644
--- a/apps/electrochem/private/runCICApp.m
+++ b/apps/electrochem/cic/+cic/+ui/runApp.m
@@ -2,7 +2,7 @@
 % Input is the debug context prepared by the public launcher. Output is the app
 % figure. Side effects are GUI creation, user-driven file I/O, exports,
 % plotting, and debug trace attachment exactly as in the original entrypoint body.
-function fig = runCICApp(debugLog)
+function fig = runApp(debugLog)
 %RUNCICAPP Build and run the app body.
 
     S = struct();
@@ -284,7 +284,7 @@ function analyzeCurrentFile()
         opts.pulseMode = ddPulseMode.Value;
         opts.usedMeasuredCurrent = cbUseMeasuredCurrent.Value;
 
-        A = cicWorkflow("computeCIC", item, opts);
+        A = cic.ops.computeCIC(item, opts);
         item.analysis = A;
         if A.ok
             addLog(sprintf('%s: Emc=%.6f V, Ema=%.6f V, safe=%d', item.name, A.Emc, A.Ema, A.safe));
@@ -344,7 +344,7 @@ function refreshFileList()
 
     function refreshBatchTable()
         [~, unitLabel] = cicDisplayUnit();
-        [C, columnNames] = cicWorkflow("buildBatchTableData", S.items, unitLabel);
+        [C, columnNames] = cic.view.buildBatchTableData(S.items, unitLabel);
         tbl.ColumnName = columnNames;
         if isempty(S.items)
             tbl.Data = cell(0,8);
@@ -386,12 +386,12 @@ function refreshResultsSummary()
         A = it.analysis;
         S.txtDetect.Value = sprintf('%s | %s', A.detectMode, A.detectMsg);
         S.txtDelay.Value = sprintf('%.3f us', 1e6 * A.delay_s);
-        S.txtArea.Value = cicWorkflow("formatMaybeNum", A.area_cm2,'%.8g cm^2');
+        S.txtArea.Value = cic.view.formatMaybeNum(A.area_cm2,'%.8g cm^2');
         S.txtEmc.Value = sprintf('%.6f V @ %.6fus', A.Emc, 1e6*A.t_emc);
         S.txtEma.Value = sprintf('%.6f V @ %.6fus', A.Ema, 1e6*A.t_ema);
-        S.txtQc.Value = cicWorkflow("formatChargeDensity", A.Qc_C, A.CICc_mCcm2, ddCICUnit.Value);
-        S.txtQa.Value = cicWorkflow("formatChargeDensity", A.Qa_C, A.CICa_mCcm2, ddCICUnit.Value);
-        S.txtQt.Value = cicWorkflow("formatChargeDensity", A.Qt_C, A.CICt_mCcm2, ddCICUnit.Value);
+        S.txtQc.Value = cic.view.formatChargeDensity(A.Qc_C, A.CICc_mCcm2, ddCICUnit.Value);
+        S.txtQa.Value = cic.view.formatChargeDensity(A.Qa_C, A.CICa_mCcm2, ddCICUnit.Value);
+        S.txtQt.Value = cic.view.formatChargeDensity(A.Qt_C, A.CICt_mCcm2, ddCICUnit.Value);
         if A.safe
             safeText = 'SAFE';
         else
@@ -505,12 +505,12 @@ function plotOneAxis(ax, A, xChoice, yChoice, showGrid)
         if strcmp(xChoice,'Sample #')
             x = A.pt;
             xlab = 'Sample #';
-            cathStartX = cicWorkflow("interp1Safe", A.t, A.pt, A.pulse.cath_start);
-            cathEndX   = cicWorkflow("interp1Safe", A.t, A.pt, A.pulse.cath_end);
-            anodStartX = cicWorkflow("interp1Safe", A.t, A.pt, A.pulse.anod_start);
-            anodEndX   = cicWorkflow("interp1Safe", A.t, A.pt, A.pulse.anod_end);
-            emcX       = cicWorkflow("interp1Safe", A.t, A.pt, A.t_emc);
-            emaX       = cicWorkflow("interp1Safe", A.t, A.pt, A.t_ema);
+            cathStartX = cic.ops.interp1Safe(A.t, A.pt, A.pulse.cath_start);
+            cathEndX   = cic.ops.interp1Safe(A.t, A.pt, A.pulse.cath_end);
+            anodStartX = cic.ops.interp1Safe(A.t, A.pt, A.pulse.anod_start);
+            anodEndX   = cic.ops.interp1Safe(A.t, A.pt, A.pulse.anod_end);
+            emcX       = cic.ops.interp1Safe(A.t, A.pt, A.t_emc);
+            emaX       = cic.ops.interp1Safe(A.t, A.pt, A.t_ema);
         else
             x = A.t;
             xlab = 'Time (s)';
@@ -530,8 +530,8 @@ function plotOneAxis(ax, A, xChoice, yChoice, showGrid)
             hold(ax,'on');
 
             if cbShowShading.Value
-                cicWorkflow("shadeWindow", ax, cathStartX, cathEndX, [0.85 0.93 1.00]);
-                cicWorkflow("shadeWindow", ax, anodStartX, anodEndX, [1.00 0.92 0.85]);
+                cic.view.shadeWindow(ax, cathStartX, cathEndX, [0.85 0.93 1.00]);
+                cic.view.shadeWindow(ax, anodStartX, anodEndX, [1.00 0.92 0.85]);
             end
 
             if cbShowLimits.Value
@@ -541,14 +541,14 @@ function plotOneAxis(ax, A, xChoice, yChoice, showGrid)
                     'Color',[0.85 0.2 0.2],'LabelHorizontalAlignment','left');
             end
 
-            cicWorkflow("addBaselineYLines", ax, A);
+            cic.view.addBaselineYLines(ax, A);
 
             if cbShowMarkers.Value
                 xline(ax, cathStartX, ':', 'Cath start','Color',[0.2 0.4 0.8]);
                 xline(ax, cathEndX, ':', 'Cath end','Color',[0.2 0.4 0.8]);
                 xline(ax, anodStartX, ':', 'Anod start','Color',[0.8 0.4 0.2]);
                 xline(ax, anodEndX, ':', 'Anod end','Color',[0.8 0.4 0.2]);
-                cicWorkflow("addPaperStyleVTAnnotations", ax, A, xChoice, ...
+                cic.view.addPaperStyleVTAnnotations(ax, A, xChoice, ...
                     cathStartX, cathEndX, anodStartX, anodEndX, emcX, emaX);
             end
             hold(ax,'off');
@@ -566,8 +566,8 @@ function plotOneAxis(ax, A, xChoice, yChoice, showGrid)
             hold(ax,'on');
 
             if cbShowShading.Value
-                cicWorkflow("shadeWindow", ax, cathStartX, cathEndX, [0.85 0.93 1.00]);
-                cicWorkflow("shadeWindow", ax, anodStartX, anodEndX, [1.00 0.92 0.85]);
+                cic.view.shadeWindow(ax, cathStartX, cathEndX, [0.85 0.93 1.00]);
+                cic.view.shadeWindow(ax, anodStartX, anodEndX, [1.00 0.92 0.85]);
             end
 
             if cbShowMarkers.Value
@@ -575,7 +575,7 @@ function plotOneAxis(ax, A, xChoice, yChoice, showGrid)
                 xline(ax, cathEndX, ':', 'Cath end','Color',[0.2 0.4 0.8]);
                 xline(ax, anodStartX, ':', 'Anod start','Color',[0.8 0.4 0.2]);
                 xline(ax, anodEndX, ':', 'Anod end','Color',[0.8 0.4 0.2]);
-                cicWorkflow("addPaperStyleITAnnotations", ax, A, xChoice, ...
+                cic.view.addPaperStyleITAnnotations(ax, A, xChoice, ...
                     cathStartX, cathEndX, anodStartX, anodEndX, emcX, emaX);
             end
             hold(ax,'off');
@@ -627,7 +627,7 @@ function exportResultsCSV()
         end
         out = fullfile(p,f);
         [~, unitLabel] = cicDisplayUnit();
-        [ok, msg] = cicWorkflow("writeResultsCSV", S.items, out, unitLabel);
+        [ok, msg] = cic.export.writeResultsCSV(S.items, out, unitLabel);
         if ~ok
             uialert(fig,msg,'Export');
             return;
diff --git a/apps/electrochem/cic/+cic/+view/addBaselineYLines.m b/apps/electrochem/cic/+cic/+view/addBaselineYLines.m
new file mode 100644
index 0000000..e2ff6a8
--- /dev/null
+++ b/apps/electrochem/cic/+cic/+view/addBaselineYLines.m
@@ -0,0 +1,5 @@
+% Expected caller: CIC app plotting helpers. Inputs are an axes and CIC result
+% struct. Side effects are limited to drawing baseline guides on the axes.
+function addBaselineYLines(ax, A)
+    cic.core.dispatch("addBaselineYLines", ax, A);
+end
diff --git a/apps/electrochem/cic/+cic/+view/addPaperStyleITAnnotations.m b/apps/electrochem/cic/+cic/+view/addPaperStyleITAnnotations.m
new file mode 100644
index 0000000..aead370
--- /dev/null
+++ b/apps/electrochem/cic/+cic/+view/addPaperStyleITAnnotations.m
@@ -0,0 +1,6 @@
+% Expected caller: CIC app plotting helpers. Inputs mirror the app-owned IT
+% annotation helper. Side effects are limited to annotating the supplied axes.
+function addPaperStyleITAnnotations(ax, A, xChoice, cathStartX, cathEndX, anodStartX, anodEndX)
+    cic.core.dispatch("addPaperStyleITAnnotations", ax, A, xChoice, ...
+        cathStartX, cathEndX, anodStartX, anodEndX);
+end
diff --git a/apps/electrochem/cic/+cic/+view/addPaperStyleVTAnnotations.m b/apps/electrochem/cic/+cic/+view/addPaperStyleVTAnnotations.m
new file mode 100644
index 0000000..3570bfc
--- /dev/null
+++ b/apps/electrochem/cic/+cic/+view/addPaperStyleVTAnnotations.m
@@ -0,0 +1,6 @@
+% Expected caller: CIC app plotting helpers. Inputs mirror the app-owned VT
+% annotation helper. Side effects are limited to annotating the supplied axes.
+function addPaperStyleVTAnnotations(ax, A, xChoice, cathStartX, cathEndX, anodStartX, anodEndX, emcX, emaX)
+    cic.core.dispatch("addPaperStyleVTAnnotations", ax, A, xChoice, ...
+        cathStartX, cathEndX, anodStartX, anodEndX, emcX, emaX);
+end
diff --git a/apps/electrochem/cic/+cic/+view/buildBatchTableData.m b/apps/electrochem/cic/+cic/+view/buildBatchTableData.m
new file mode 100644
index 0000000..9d56188
--- /dev/null
+++ b/apps/electrochem/cic/+cic/+view/buildBatchTableData.m
@@ -0,0 +1,6 @@
+% Expected caller: CIC app runner and unit tests. Inputs are item structs and a
+% display unit label. Outputs are the stable UI table cell data and column names.
+% No file side effects.
+function [C, columnNames] = buildBatchTableData(items, unitLabel)
+    [C, columnNames] = cic.core.dispatch("buildBatchTableData", items, unitLabel);
+end
diff --git a/apps/electrochem/cic/+cic/+view/formatChargeDensity.m b/apps/electrochem/cic/+cic/+view/formatChargeDensity.m
new file mode 100644
index 0000000..75f4721
--- /dev/null
+++ b/apps/electrochem/cic/+cic/+view/formatChargeDensity.m
@@ -0,0 +1,5 @@
+% Expected caller: CIC app runner. Inputs are charge, density, and display unit
+% label. Output is the stable read-only UI text. No side effects.
+function txt = formatChargeDensity(charge_C, density_mCcm2, unitLabel)
+    txt = cic.core.dispatch("formatChargeDensity", charge_C, density_mCcm2, unitLabel);
+end
diff --git a/apps/electrochem/cic/+cic/+view/formatMaybeNum.m b/apps/electrochem/cic/+cic/+view/formatMaybeNum.m
new file mode 100644
index 0000000..846b945
--- /dev/null
+++ b/apps/electrochem/cic/+cic/+view/formatMaybeNum.m
@@ -0,0 +1,5 @@
+% Expected caller: CIC app runner. Inputs are a numeric value and sprintf format.
+% Output is the stable UI text for finite or missing values. No side effects.
+function txt = formatMaybeNum(value, fmt)
+    txt = cic.core.dispatch("formatMaybeNum", value, fmt);
+end
diff --git a/apps/electrochem/cic/+cic/+view/shadeWindow.m b/apps/electrochem/cic/+cic/+view/shadeWindow.m
new file mode 100644
index 0000000..00a389d
--- /dev/null
+++ b/apps/electrochem/cic/+cic/+view/shadeWindow.m
@@ -0,0 +1,5 @@
+% Expected caller: CIC app plotting helpers. Inputs are an axes, x-window, and
+% color. Side effects are limited to adding the app-owned patch to the axes.
+function shadeWindow(ax, x1, x2, color)
+    cic.core.dispatch("shadeWindow", ax, x1, x2, color);
+end
diff --git a/apps/electrochem/labkit_CIC_app.m b/apps/electrochem/cic/labkit_CIC_app.m
similarity index 98%
rename from apps/electrochem/labkit_CIC_app.m
rename to apps/electrochem/cic/labkit_CIC_app.m
index 0baa39a..b436691 100644
--- a/apps/electrochem/labkit_CIC_app.m
+++ b/apps/electrochem/cic/labkit_CIC_app.m
@@ -38,7 +38,7 @@
         error('labkit_CIC_app:TooManyOutputs', 'labkit_CIC_app returns at most the app figure handle.');
     end
 
-    fig = runCICApp(debugLog);
+    fig = cic.ui.runApp(debugLog);
     if nargout >= 1
         varargout{1} = fig;
     end
diff --git a/apps/electrochem/private/cscWorkflow.m b/apps/electrochem/csc/+csc/+core/dispatch.m
similarity index 96%
rename from apps/electrochem/private/cscWorkflow.m
rename to apps/electrochem/csc/+csc/+core/dispatch.m
index 3bc952b..4ccd49f 100644
--- a/apps/electrochem/private/cscWorkflow.m
+++ b/apps/electrochem/csc/+csc/+core/dispatch.m
@@ -1,10 +1,10 @@
-% App-owned CSC workflow helper dispatch. Expected caller: labkit_CSC_app
-% callbacks and workflow tests. Inputs are a command
+% App-owned CSC helper core dispatch. Expected caller: labkit_CSC_app
+% callbacks and package tests. Inputs are a command
 % string plus the original helper arguments; outputs match the selected helper.
 % This helper has no file side effects.
-function varargout = cscWorkflow(command, varargin)
-%CSCWORKFLOW Dispatch app-owned CSC calculation helpers.
-% Expected caller: labkit_CSC_app callbacks and workflow tests. Inputs are a
+function varargout = dispatch(command, varargin)
+%DISPATCH Route CSC package wrapper calls to app-owned helpers.
+% Expected caller: labkit_CSC_app callbacks and package tests. Inputs are a
 % command string plus the original helper arguments.
 % Outputs match the selected helper. This helper has no file side effects.
 
diff --git a/apps/electrochem/csc/+csc/+ops/computeCSC.m b/apps/electrochem/csc/+csc/+ops/computeCSC.m
new file mode 100644
index 0000000..45fa6b3
--- /dev/null
+++ b/apps/electrochem/csc/+csc/+ops/computeCSC.m
@@ -0,0 +1,6 @@
+% Expected caller: CSC app runner and unit tests. Inputs are a CV/CT curve struct
+% and CSC options. Output is the stable CSC comparison result struct. No file or
+% UI side effects.
+function A = computeCSC(curve, opts)
+    A = csc.core.dispatch("computeCSC", curve, opts);
+end
diff --git a/apps/electrochem/private/runCSCApp.m b/apps/electrochem/csc/+csc/+ui/runApp.m
similarity index 99%
rename from apps/electrochem/private/runCSCApp.m
rename to apps/electrochem/csc/+csc/+ui/runApp.m
index 1db978d..55a5555 100644
--- a/apps/electrochem/private/runCSCApp.m
+++ b/apps/electrochem/csc/+csc/+ui/runApp.m
@@ -2,7 +2,7 @@
 % Input is the debug context prepared by the public launcher. Output is the app
 % figure. Side effects are GUI creation, user-driven file I/O, exports,
 % plotting, and debug trace attachment exactly as in the original entrypoint body.
-function fig = runCSCApp(debugLog)
+function fig = runApp(debugLog)
 %RUNCSCAPP Build and run the app body.
 
     S = struct();
@@ -461,7 +461,7 @@ function refreshCompare()
         opts.mode = ddMode.Value;
         opts.scanRate = S.scanRate;
         opts.area_cm2 = edArea.Value;
-        R = cscWorkflow("computeCSC", c, opts);
+        R = csc.ops.computeCSC(c, opts);
 
         if ~R.ok
             txtQct.Value = R.message;
diff --git a/apps/electrochem/labkit_CSC_app.m b/apps/electrochem/csc/labkit_CSC_app.m
similarity index 97%
rename from apps/electrochem/labkit_CSC_app.m
rename to apps/electrochem/csc/labkit_CSC_app.m
index 6e687b8..3dccea6 100644
--- a/apps/electrochem/labkit_CSC_app.m
+++ b/apps/electrochem/csc/labkit_CSC_app.m
@@ -37,7 +37,7 @@
 
     % Application state container
 
-    fig = runCSCApp(debugLog);
+    fig = csc.ui.runApp(debugLog);
     if nargout >= 1
         varargout{1} = fig;
     end
diff --git a/apps/electrochem/private/eisWorkflow.m b/apps/electrochem/eis/+eis/+core/dispatch.m
similarity index 95%
rename from apps/electrochem/private/eisWorkflow.m
rename to apps/electrochem/eis/+eis/+core/dispatch.m
index 71144af..4bd14bf 100644
--- a/apps/electrochem/private/eisWorkflow.m
+++ b/apps/electrochem/eis/+eis/+core/dispatch.m
@@ -1,10 +1,10 @@
-% App-owned EIS workflow helper dispatch. Expected caller: labkit_EIS_app
-% callbacks and workflow tests. Inputs are a command
+% App-owned EIS helper core dispatch. Expected caller: labkit_EIS_app
+% callbacks and package tests. Inputs are a command
 % string plus the original helper arguments; outputs match the selected helper.
 % This helper has no file side effects.
-function varargout = eisWorkflow(command, varargin)
-%EISWORKFLOW Dispatch app-owned EIS plot/export helpers.
-% Expected caller: labkit_EIS_app callbacks and workflow tests. Inputs are a
+function varargout = dispatch(command, varargin)
+%DISPATCH Route EIS package wrapper calls to app-owned helpers.
+% Expected caller: labkit_EIS_app callbacks and package tests. Inputs are a
 % command string plus the original helper arguments.
 % Outputs match the selected helper. This helper has no file side effects.
 
diff --git a/apps/electrochem/eis/+eis/+export/buildExportTable.m b/apps/electrochem/eis/+eis/+export/buildExportTable.m
new file mode 100644
index 0000000..3eb06c9
--- /dev/null
+++ b/apps/electrochem/eis/+eis/+export/buildExportTable.m
@@ -0,0 +1,6 @@
+% Expected caller: EIS app runner and export tests. Inputs are EIS item structs,
+% axis labels, and log flags. Output is the stable EIS export table. No file side
+% effects.
+function T = buildExportTable(items, xName, yName, useLogX, useLogY)
+    T = eis.core.dispatch("buildExportTable", items, xName, yName, useLogX, useLogY);
+end
diff --git a/apps/electrochem/eis/+eis/+ops/valuesForAxis.m b/apps/electrochem/eis/+eis/+ops/valuesForAxis.m
new file mode 100644
index 0000000..bcceb12
--- /dev/null
+++ b/apps/electrochem/eis/+eis/+ops/valuesForAxis.m
@@ -0,0 +1,5 @@
+% Expected caller: EIS app runner and unit tests. Inputs are an EIS item struct
+% and axis label. Output is the selected numeric vector. No side effects.
+function values = valuesForAxis(item, axisName)
+    values = eis.core.dispatch("valuesForAxis", item, axisName);
+end
diff --git a/apps/electrochem/private/runEISApp.m b/apps/electrochem/eis/+eis/+ui/runApp.m
similarity index 99%
rename from apps/electrochem/private/runEISApp.m
rename to apps/electrochem/eis/+eis/+ui/runApp.m
index d9ee3c2..9f3772f 100644
--- a/apps/electrochem/private/runEISApp.m
+++ b/apps/electrochem/eis/+eis/+ui/runApp.m
@@ -2,7 +2,7 @@
 % Input is the debug context prepared by the public launcher. Output is the app
 % figure. Side effects are GUI creation, user-driven file I/O, exports,
 % plotting, and debug trace attachment exactly as in the original entrypoint body.
-function fig = runEISApp(debugLog)
+function fig = runApp(debugLog)
 %RUNEISAPP Build and run the app body.
 
     S = struct();
@@ -286,7 +286,7 @@ function onExportCSV(~, ~)
             return;
         end
 
-        T = eisWorkflow("buildExportTable", items, ddX.Value, ddY.Value, cbLogX.Value, cbLogY.Value);
+        T = eis.export.buildExportTable(items, ddX.Value, ddY.Value, cbLogX.Value, cbLogY.Value);
         out = fullfile(p, f);
         writetable(T, out);
         addLog(sprintf('Exported CSV: %s', out));
diff --git a/apps/electrochem/eis/+eis/+view/buildSummary.m b/apps/electrochem/eis/+eis/+view/buildSummary.m
new file mode 100644
index 0000000..bbd2b96
--- /dev/null
+++ b/apps/electrochem/eis/+eis/+view/buildSummary.m
@@ -0,0 +1,5 @@
+% Expected caller: EIS app runner. Input is EIS item structs. Output is the
+% stable summary text cell array. No side effects.
+function summary = buildSummary(items)
+    summary = eis.core.dispatch("buildSummary", items);
+end
diff --git a/apps/electrochem/eis/+eis/+view/labelForAxis.m b/apps/electrochem/eis/+eis/+view/labelForAxis.m
new file mode 100644
index 0000000..51ed84b
--- /dev/null
+++ b/apps/electrochem/eis/+eis/+view/labelForAxis.m
@@ -0,0 +1,5 @@
+% Expected caller: EIS app runner. Input is an axis selection label. Output is
+% the display label used by the app. No side effects.
+function txt = labelForAxis(axisName)
+    txt = eis.core.dispatch("labelForAxis", axisName);
+end
diff --git a/apps/electrochem/eis/+eis/+view/plotOverlay.m b/apps/electrochem/eis/+eis/+view/plotOverlay.m
new file mode 100644
index 0000000..0889a51
--- /dev/null
+++ b/apps/electrochem/eis/+eis/+view/plotOverlay.m
@@ -0,0 +1,5 @@
+% Expected caller: EIS app runner. Inputs are an axes, EIS items, and plot
+% options. Output is legend labels. Side effects are limited to redrawing axes.
+function labels = plotOverlay(ax, items, opts)
+    labels = eis.core.dispatch("plotOverlay", ax, items, opts);
+end
diff --git a/apps/electrochem/labkit_EIS_app.m b/apps/electrochem/eis/labkit_EIS_app.m
similarity index 96%
rename from apps/electrochem/labkit_EIS_app.m
rename to apps/electrochem/eis/labkit_EIS_app.m
index ebdab79..f7594cc 100644
--- a/apps/electrochem/labkit_EIS_app.m
+++ b/apps/electrochem/eis/labkit_EIS_app.m
@@ -17,7 +17,7 @@
         error('labkit_EIS_app:TooManyOutputs', 'labkit_EIS_app returns at most the app figure handle.');
     end
 
-    fig = runEISApp(debugLog);
+    fig = eis.ui.runApp(debugLog);
     if nargout >= 1
         varargout{1} = fig;
     end
diff --git a/apps/electrochem/electrochemWorkflow.m b/apps/electrochem/electrochemWorkflow.m
deleted file mode 100644
index eac8d72..0000000
--- a/apps/electrochem/electrochemWorkflow.m
+++ /dev/null
@@ -1,23 +0,0 @@
-function varargout = electrochemWorkflow(appKey, command, varargin)
-%ELECTROCHEMWORKFLOW Dispatch app-owned electrochem workflow helpers.
-% Expected caller: electrochem app tests and migration-time workflow checks.
-% Inputs are an app key, a workflow command, and command-specific arguments.
-% Outputs match the selected app-owned helper. Side effects are limited to CSV
-% export commands and app-owned plot drawing commands on caller axes.
-
-    switch string(appKey)
-        case "chronoOverlay"
-            [varargout{1:nargout}] = chronoOverlayWorkflow(command, varargin{:});
-        case "cic"
-            [varargout{1:nargout}] = cicWorkflow(command, varargin{:});
-        case "csc"
-            [varargout{1:nargout}] = cscWorkflow(command, varargin{:});
-        case "eis"
-            [varargout{1:nargout}] = eisWorkflow(command, varargin{:});
-        case "vtResistance"
-            [varargout{1:nargout}] = vtResistanceWorkflow(command, varargin{:});
-        otherwise
-            error('labkit:Electrochem:UnknownWorkflow', ...
-                'Unknown electrochem workflow key: %s.', appKey);
-    end
-end
diff --git a/apps/electrochem/private/vtResistanceWorkflow.m b/apps/electrochem/vt_resistance/+vt_resistance/+core/dispatch.m
similarity index 97%
rename from apps/electrochem/private/vtResistanceWorkflow.m
rename to apps/electrochem/vt_resistance/+vt_resistance/+core/dispatch.m
index f762294..736d938 100644
--- a/apps/electrochem/private/vtResistanceWorkflow.m
+++ b/apps/electrochem/vt_resistance/+vt_resistance/+core/dispatch.m
@@ -1,12 +1,11 @@
-% App-owned VT resistance workflow helper dispatch. Expected caller:
-% labkit_VTResistance_app callbacks and workflow tests.
+% App-owned VT resistance helper core dispatch. Expected caller:
+% labkit_VTResistance_app callbacks and package tests.
 % Inputs are a command string plus the original helper arguments; outputs match
 % the selected helper. Side effects are limited to CSV export writes and drawing
 % app-owned plot annotations on caller axes.
-function varargout = vtResistanceWorkflow(command, varargin)
-%VTRESISTANCEWORKFLOW Dispatch app-owned VT resistance helpers.
-% Expected caller: labkit_VTResistance_app callbacks and temporary compatibility
-% workflow tests. Inputs are a command string plus the original helper arguments.
+function varargout = dispatch(command, varargin)
+%DISPATCH Route VT resistance package wrapper calls to app-owned helpers.
+% Expected caller: labkit_VTResistance_app callbacks and % package tests. Inputs are a command string plus the original helper arguments.
 % Outputs match the selected helper. Side effects are limited to CSV export
 % writes and drawing app-owned plot annotations on caller axes.
 
diff --git a/apps/electrochem/vt_resistance/+vt_resistance/+export/buildResultsTable.m b/apps/electrochem/vt_resistance/+vt_resistance/+export/buildResultsTable.m
new file mode 100644
index 0000000..ef9a06e
--- /dev/null
+++ b/apps/electrochem/vt_resistance/+vt_resistance/+export/buildResultsTable.m
@@ -0,0 +1,6 @@
+% Expected caller: VT resistance app runner and export tests. Input is item
+% structs. Output is the stable VT resistance CSV result table. No file side
+% effects.
+function T = buildResultsTable(items)
+    T = vt_resistance.core.dispatch("buildResultsTable", items);
+end
diff --git a/apps/electrochem/vt_resistance/+vt_resistance/+export/writeResultsCSV.m b/apps/electrochem/vt_resistance/+vt_resistance/+export/writeResultsCSV.m
new file mode 100644
index 0000000..32c49eb
--- /dev/null
+++ b/apps/electrochem/vt_resistance/+vt_resistance/+export/writeResultsCSV.m
@@ -0,0 +1,5 @@
+% Expected caller: VT resistance app runner and export tests. Inputs are item
+% structs and output filepath. Side effect is writing the stable VT CSV file.
+function [ok, msg] = writeResultsCSV(items, filepath)
+    [ok, msg] = vt_resistance.core.dispatch("writeResultsCSV", items, filepath);
+end
diff --git a/apps/electrochem/vt_resistance/+vt_resistance/+ops/computeResistance.m b/apps/electrochem/vt_resistance/+vt_resistance/+ops/computeResistance.m
new file mode 100644
index 0000000..88ba1fe
--- /dev/null
+++ b/apps/electrochem/vt_resistance/+vt_resistance/+ops/computeResistance.m
@@ -0,0 +1,6 @@
+% Expected caller: VT resistance app runner and unit tests. Inputs are a DTA item
+% struct and option struct. Output is the stable resistance result struct. No
+% file or UI side effects.
+function A = computeResistance(item, opts)
+    A = vt_resistance.core.dispatch("computeResistance", item, opts);
+end
diff --git a/apps/electrochem/vt_resistance/+vt_resistance/+ops/interp1Safe.m b/apps/electrochem/vt_resistance/+vt_resistance/+ops/interp1Safe.m
new file mode 100644
index 0000000..441a02a
--- /dev/null
+++ b/apps/electrochem/vt_resistance/+vt_resistance/+ops/interp1Safe.m
@@ -0,0 +1,6 @@
+% Expected caller: VT resistance app plotting helpers. Inputs are vectors x/y and
+% query points. Output mirrors the app-owned safe interpolation helper. No side
+% effects.
+function v = interp1Safe(x, y, xq)
+    v = vt_resistance.core.dispatch("interp1Safe", x, y, xq);
+end
diff --git a/apps/electrochem/private/runVTResistanceApp.m b/apps/electrochem/vt_resistance/+vt_resistance/+ui/runApp.m
similarity index 88%
rename from apps/electrochem/private/runVTResistanceApp.m
rename to apps/electrochem/vt_resistance/+vt_resistance/+ui/runApp.m
index 9ecd0ee..610e073 100644
--- a/apps/electrochem/private/runVTResistanceApp.m
+++ b/apps/electrochem/vt_resistance/+vt_resistance/+ui/runApp.m
@@ -2,7 +2,7 @@
 % Input is the debug context prepared by the public launcher. Output is the app
 % figure. Side effects are GUI creation, user-driven file I/O, exports,
 % plotting, and debug trace attachment exactly as in the original entrypoint body.
-function fig = runVTResistanceApp(debugLog)
+function fig = runApp(debugLog)
 %RUNVTRESISTANCEAPP Build and run the app body.
 
     S = struct();
@@ -209,7 +209,7 @@ function analyzeCurrentFile()
         opts.voltageMode = ddVoltageMode.Value;
         opts.pulseMode = ddPulseMode.Value;
 
-        A = vtResistanceWorkflow("computeResistance", item, opts);
+        A = vt_resistance.ops.computeResistance(item, opts);
         if A.ok
             addLog(sprintf('%s: Rc=%.6g ohm, Ra=%.6g ohm, Ravg=%.6g ohm', ...
                 item.name, A.Rc_abs_ohm, A.Ra_abs_ohm, A.Ravg_abs_ohm));
@@ -273,7 +273,7 @@ function refreshBatchTable()
             tbl.Data = cell(0,9);
             return;
         end
-            tbl.Data = vtResistanceWorkflow("buildBatchTableData", S.items);
+            tbl.Data = vt_resistance.view.buildBatchTableData(S.items);
     end
 
     function refreshResultsSummary()
@@ -312,8 +312,8 @@ function refreshResultsSummary()
         S.txtAnodIV.Value = sprintf('I=%.6e A | Vss=%.6f V | dV=%.6f V', A.Ia_est_A, A.Va_ss_V, A.dVa_V);
         S.txtCathBase.Value = sprintf('%.6f V', A.Vc_baseline_V);
         S.txtAnodBase.Value = sprintf('%.6f V', A.Va_baseline_V);
-        S.txtCathBaseWin.Value = vtResistanceWorkflow("formatDurationUs", A.cathBaselineWindow_s);
-        S.txtAnodBaseWin.Value = vtResistanceWorkflow("formatDurationUs", A.anodBaselineWindow_s);
+        S.txtCathBaseWin.Value = vt_resistance.view.formatDurationUs(A.cathBaselineWindow_s);
+        S.txtAnodBaseWin.Value = vt_resistance.view.formatDurationUs(A.anodBaselineWindow_s);
         S.txtCathR.Value = sprintf('%.6g ohm (signed %.6g)', A.Rc_abs_ohm, A.Rc_ohm);
         S.txtAnodR.Value = sprintf('%.6g ohm (signed %.6g)', A.Ra_abs_ohm, A.Ra_ohm);
         S.txtAvgR.Value = sprintf('%.6g ohm', A.Ravg_abs_ohm);
@@ -361,18 +361,18 @@ function plotOneAxis(ax, A, xChoice, yChoice, showGrid)
         if strcmp(xChoice,'Sample #')
             x = A.pt;
             xlab = 'Sample #';
-            cathStartX = vtResistanceWorkflow("interp1Safe", A.t, A.pt, A.pulse.cath_start);
-            cathEndX = vtResistanceWorkflow("interp1Safe", A.t, A.pt, A.pulse.cath_end);
-            anodStartX = vtResistanceWorkflow("interp1Safe", A.t, A.pt, A.pulse.anod_start);
-            anodEndX = vtResistanceWorkflow("interp1Safe", A.t, A.pt, A.pulse.anod_end);
-            cathBaseStartX = vtResistanceWorkflow("interp1Safe", A.t, A.pt, A.pulse.pre_start);
-            cathBaseEndX = vtResistanceWorkflow("interp1Safe", A.t, A.pt, A.pulse.pre_end);
-            anodBaseStartX = vtResistanceWorkflow("interp1Safe", A.t, A.pt, A.anodBaselineStart);
-            anodBaseEndX = vtResistanceWorkflow("interp1Safe", A.t, A.pt, A.anodBaselineEnd);
-            cSteadyStartX = vtResistanceWorkflow("interp1Safe", A.t, A.pt, A.cathSteadyStart);
-            cSteadyEndX = vtResistanceWorkflow("interp1Safe", A.t, A.pt, A.cathSteadyEnd);
-            aSteadyStartX = vtResistanceWorkflow("interp1Safe", A.t, A.pt, A.anodSteadyStart);
-            aSteadyEndX = vtResistanceWorkflow("interp1Safe", A.t, A.pt, A.anodSteadyEnd);
+            cathStartX = vt_resistance.ops.interp1Safe(A.t, A.pt, A.pulse.cath_start);
+            cathEndX = vt_resistance.ops.interp1Safe(A.t, A.pt, A.pulse.cath_end);
+            anodStartX = vt_resistance.ops.interp1Safe(A.t, A.pt, A.pulse.anod_start);
+            anodEndX = vt_resistance.ops.interp1Safe(A.t, A.pt, A.pulse.anod_end);
+            cathBaseStartX = vt_resistance.ops.interp1Safe(A.t, A.pt, A.pulse.pre_start);
+            cathBaseEndX = vt_resistance.ops.interp1Safe(A.t, A.pt, A.pulse.pre_end);
+            anodBaseStartX = vt_resistance.ops.interp1Safe(A.t, A.pt, A.anodBaselineStart);
+            anodBaseEndX = vt_resistance.ops.interp1Safe(A.t, A.pt, A.anodBaselineEnd);
+            cSteadyStartX = vt_resistance.ops.interp1Safe(A.t, A.pt, A.cathSteadyStart);
+            cSteadyEndX = vt_resistance.ops.interp1Safe(A.t, A.pt, A.cathSteadyEnd);
+            aSteadyStartX = vt_resistance.ops.interp1Safe(A.t, A.pt, A.anodSteadyStart);
+            aSteadyEndX = vt_resistance.ops.interp1Safe(A.t, A.pt, A.anodSteadyEnd);
         else
             x = A.t;
             xlab = 'Time (s)';
@@ -403,10 +403,10 @@ function plotOneAxis(ax, A, xChoice, yChoice, showGrid)
         end
 
         if cbShowShading.Value
-            vtResistanceWorkflow("shadeWindow", ax, cathStartX, cathEndX, [0.90 0.95 1.00], 0.12);
-            vtResistanceWorkflow("shadeWindow", ax, anodStartX, anodEndX, [1.00 0.94 0.88], 0.12);
-            vtResistanceWorkflow("shadeWindow", ax, cSteadyStartX, cSteadyEndX, [0.65 0.82 1.00], 0.22);
-            vtResistanceWorkflow("shadeWindow", ax, aSteadyStartX, aSteadyEndX, [1.00 0.75 0.55], 0.22);
+            vt_resistance.view.shadeWindow(ax, cathStartX, cathEndX, [0.90 0.95 1.00], 0.12);
+            vt_resistance.view.shadeWindow(ax, anodStartX, anodEndX, [1.00 0.94 0.88], 0.12);
+            vt_resistance.view.shadeWindow(ax, cSteadyStartX, cSteadyEndX, [0.65 0.82 1.00], 0.22);
+            vt_resistance.view.shadeWindow(ax, aSteadyStartX, aSteadyEndX, [1.00 0.75 0.55], 0.22);
         end
         if cbShowMarkers.Value
             xline(ax, cathStartX, ':', 'Cath start','Color',[0.2 0.4 0.8]);
@@ -414,10 +414,10 @@ function plotOneAxis(ax, A, xChoice, yChoice, showGrid)
             xline(ax, anodStartX, ':', 'Anod start','Color',[0.8 0.4 0.2]);
             xline(ax, anodEndX, ':', 'Anod end','Color',[0.8 0.4 0.2]);
             if startsWith(yChoice,'VT')
-                vtResistanceWorkflow("addResistanceVTAnnotations", ax, A, cathBaseStartX, cathBaseEndX, anodBaseStartX, anodBaseEndX, ...
+                vt_resistance.view.addResistanceVTAnnotations(ax, A, cathBaseStartX, cathBaseEndX, anodBaseStartX, anodBaseEndX, ...
                     cSteadyStartX, cSteadyEndX, aSteadyStartX, aSteadyEndX, cathStartX, cathEndX, anodStartX, anodEndX);
             else
-                vtResistanceWorkflow("addResistanceITAnnotations", ax, A, cSteadyStartX, cSteadyEndX, aSteadyStartX, aSteadyEndX, ...
+                vt_resistance.view.addResistanceITAnnotations(ax, A, cSteadyStartX, cSteadyEndX, aSteadyStartX, aSteadyEndX, ...
                     cathStartX, cathEndX, anodStartX, anodEndX);
             end
         end
@@ -471,7 +471,7 @@ function exportResultsCSV()
             return;
         end
         out = fullfile(p,f);
-        [ok, msg] = vtResistanceWorkflow("writeResultsCSV", S.items, out);
+        [ok, msg] = vt_resistance.export.writeResultsCSV(S.items, out);
         if ~ok
             uialert(fig,msg,'Export');
             return;
diff --git a/apps/electrochem/vt_resistance/+vt_resistance/+view/addResistanceITAnnotations.m b/apps/electrochem/vt_resistance/+vt_resistance/+view/addResistanceITAnnotations.m
new file mode 100644
index 0000000..0132f42
--- /dev/null
+++ b/apps/electrochem/vt_resistance/+vt_resistance/+view/addResistanceITAnnotations.m
@@ -0,0 +1,7 @@
+% Expected caller: VT resistance app plotting helpers. Inputs mirror the
+% app-owned current annotation helper. Side effects are limited to axes labels.
+function addResistanceITAnnotations(ax, A, cSteadyStartX, cSteadyEndX, aSteadyStartX, aSteadyEndX, cathStartX, cathEndX, anodStartX, anodEndX)
+    vt_resistance.core.dispatch("addResistanceITAnnotations", ax, A, ...
+        cSteadyStartX, cSteadyEndX, aSteadyStartX, aSteadyEndX, ...
+        cathStartX, cathEndX, anodStartX, anodEndX);
+end
diff --git a/apps/electrochem/vt_resistance/+vt_resistance/+view/addResistanceVTAnnotations.m b/apps/electrochem/vt_resistance/+vt_resistance/+view/addResistanceVTAnnotations.m
new file mode 100644
index 0000000..4287cd2
--- /dev/null
+++ b/apps/electrochem/vt_resistance/+vt_resistance/+view/addResistanceVTAnnotations.m
@@ -0,0 +1,8 @@
+% Expected caller: VT resistance app plotting helpers. Inputs mirror the
+% app-owned voltage annotation helper. Side effects are limited to axes labels.
+function addResistanceVTAnnotations(ax, A, cathBaseStartX, cathBaseEndX, anodBaseStartX, anodBaseEndX, cSteadyStartX, cSteadyEndX, aSteadyStartX, aSteadyEndX, cathStartX, cathEndX, anodStartX, anodEndX)
+    vt_resistance.core.dispatch("addResistanceVTAnnotations", ax, A, ...
+        cathBaseStartX, cathBaseEndX, anodBaseStartX, anodBaseEndX, ...
+        cSteadyStartX, cSteadyEndX, aSteadyStartX, aSteadyEndX, ...
+        cathStartX, cathEndX, anodStartX, anodEndX);
+end
diff --git a/apps/electrochem/vt_resistance/+vt_resistance/+view/buildBatchTableData.m b/apps/electrochem/vt_resistance/+vt_resistance/+view/buildBatchTableData.m
new file mode 100644
index 0000000..fde6d3a
--- /dev/null
+++ b/apps/electrochem/vt_resistance/+vt_resistance/+view/buildBatchTableData.m
@@ -0,0 +1,5 @@
+% Expected caller: VT resistance app runner and unit tests. Input is item structs.
+% Output is the stable UI table cell data. No file side effects.
+function C = buildBatchTableData(items)
+    C = vt_resistance.core.dispatch("buildBatchTableData", items);
+end
diff --git a/apps/electrochem/vt_resistance/+vt_resistance/+view/formatDurationUs.m b/apps/electrochem/vt_resistance/+vt_resistance/+view/formatDurationUs.m
new file mode 100644
index 0000000..a1ee40f
--- /dev/null
+++ b/apps/electrochem/vt_resistance/+vt_resistance/+view/formatDurationUs.m
@@ -0,0 +1,5 @@
+% Expected caller: VT resistance app runner. Input is a duration in seconds.
+% Output is the stable microsecond display text. No side effects.
+function txt = formatDurationUs(value)
+    txt = vt_resistance.core.dispatch("formatDurationUs", value);
+end
diff --git a/apps/electrochem/vt_resistance/+vt_resistance/+view/shadeWindow.m b/apps/electrochem/vt_resistance/+vt_resistance/+view/shadeWindow.m
new file mode 100644
index 0000000..ee2a9d9
--- /dev/null
+++ b/apps/electrochem/vt_resistance/+vt_resistance/+view/shadeWindow.m
@@ -0,0 +1,9 @@
+% Expected caller: VT resistance app plotting helpers. Inputs are an axes,
+% x-window, color, and optional alpha. Side effects are limited to axes drawing.
+function shadeWindow(ax, x1, x2, color, alpha)
+    if nargin < 5
+        vt_resistance.core.dispatch("shadeWindow", ax, x1, x2, color);
+    else
+        vt_resistance.core.dispatch("shadeWindow", ax, x1, x2, color, alpha);
+    end
+end
diff --git a/apps/electrochem/labkit_VTResistance_app.m b/apps/electrochem/vt_resistance/labkit_VTResistance_app.m
similarity index 96%
rename from apps/electrochem/labkit_VTResistance_app.m
rename to apps/electrochem/vt_resistance/labkit_VTResistance_app.m
index 1c4c950..b6fc102 100644
--- a/apps/electrochem/labkit_VTResistance_app.m
+++ b/apps/electrochem/vt_resistance/labkit_VTResistance_app.m
@@ -25,7 +25,7 @@
         error('labkit_VTResistance_app:TooManyOutputs', 'labkit_VTResistance_app returns at most the app figure handle.');
     end
 
-    fig = runVTResistanceApp(debugLog);
+    fig = vt_resistance.ui.runApp(debugLog);
     if nargout >= 1
         varargout{1} = fig;
     end
diff --git a/buildfile.m b/buildfile.m
index adbc232..53bfc4c 100644
--- a/buildfile.m
+++ b/buildfile.m
@@ -154,7 +154,7 @@ function packageDryRunTask(~)
         taskSpec("testAppsGui", "Run all app GUI tests.", "Suites", "apps", "IncludeGui", true), ...
         taskSpec("testAppsSmokeGui", "Run cross-app GUI smoke tests.", "Suites", "apps/smoke", "IncludeGui", true), ...
         taskSpec("testGuiStructural", "Run noninteractive GUI structural tests.", "Suites", "gui", "Tags", "Structural", "IncludeGui", true), ...
-        taskSpec("testGuiGesture", "Run noninteractive/manual GUI gesture tests.", "Tags", "Gesture", "IncludeGui", true), ...
+        taskSpec("testGuiGesture", "Run noninteractive GUI gesture tests.", "Tags", "Gesture", "IncludeGui", true), ...
         taskSpec("coverage", "Run official tests with coverage artifacts.", "Tags", ["Unit", "Integration"], "IncludeCoverage", true), ...
         taskSpec("checkProject", "Verify MATLAB Project metadata and path setup.", "RunTests", false), ...
         taskSpec("packageDryRun", "Verify package boundary inventory without exporting.", "RunTests", false)];
diff --git a/docs/apps.md b/docs/apps.md
index ccb4fe8..378d9b3 100644
--- a/docs/apps.md
+++ b/docs/apps.md
@@ -119,6 +119,8 @@ Do not add new string-dispatch workflow adapters such as `*Workflow.m` for
 tests. Tests should call the app-owned package function that owns the behavior.
 Use `apps/<family>/private/` only for helpers that are genuinely shared by
 multiple apps in that family and are not ready for a reusable `+labkit` facade.
+Existing DIC and wearable `private/` runners are migration debt, not the
+preferred app structure.
 
 ## New App Checklist
 
diff --git a/docs/architecture.md b/docs/architecture.md
index bd894aa..d6f5a5f 100644
--- a/docs/architecture.md
+++ b/docs/architecture.md
@@ -89,6 +89,11 @@ use a fixed `+app` namespace for every app. `apps/<family>/private/` should be
 reserved for helpers that are genuinely shared by multiple apps in that family
 and are not ready for a reusable `+labkit` facade.
 
+Current image-measurement and electrochemistry apps already follow the
+app-owned package shape. Older DIC and wearable apps may still contain
+`private/` runners while they are being migrated; do not copy that shape into
+new app work.
+
 ## Library Extraction Rule
 
 A helper may move into `+labkit` only when it satisfies all of these:
diff --git a/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/HugybYBEuEkod2bN8Cjjv9fGULod.xml b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/HugybYBEuEkod2bN8Cjjv9fGULod.xml
new file mode 100644
index 0000000..0835748
--- /dev/null
+++ b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/HugybYBEuEkod2bN8Cjjv9fGULod.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Info Ref="apps/electrochem/eis" Type="Relative"/>
\ No newline at end of file
diff --git a/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/HugybYBEuEkod2bN8Cjjv9fGULop.xml b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/HugybYBEuEkod2bN8Cjjv9fGULop.xml
new file mode 100644
index 0000000..e5aabde
--- /dev/null
+++ b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/HugybYBEuEkod2bN8Cjjv9fGULop.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Info location="c8aea3e1-25aa-4b2b-a374-f40b463b0d95" type="Reference"/>
\ No newline at end of file
diff --git a/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/If8SwhnBtCmrtMxNhP-TsJsHUNUd.xml b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/If8SwhnBtCmrtMxNhP-TsJsHUNUd.xml
new file mode 100644
index 0000000..a2391be
--- /dev/null
+++ b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/If8SwhnBtCmrtMxNhP-TsJsHUNUd.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Info Ref="apps/electrochem/vt_resistance" Type="Relative"/>
\ No newline at end of file
diff --git a/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/If8SwhnBtCmrtMxNhP-TsJsHUNUp.xml b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/If8SwhnBtCmrtMxNhP-TsJsHUNUp.xml
new file mode 100644
index 0000000..497db00
--- /dev/null
+++ b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/If8SwhnBtCmrtMxNhP-TsJsHUNUp.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Info location="6670748b-4646-4df8-8ed0-71a8f9cd3df4" type="Reference"/>
\ No newline at end of file
diff --git a/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/IqfyvktccVsxgbnNuEPzKqzy7zId.xml b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/IqfyvktccVsxgbnNuEPzKqzy7zId.xml
new file mode 100644
index 0000000..65b0c24
--- /dev/null
+++ b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/IqfyvktccVsxgbnNuEPzKqzy7zId.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Info Ref="apps/electrochem/chrono_overlay" Type="Relative"/>
\ No newline at end of file
diff --git a/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/IqfyvktccVsxgbnNuEPzKqzy7zIp.xml b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/IqfyvktccVsxgbnNuEPzKqzy7zIp.xml
new file mode 100644
index 0000000..daf5691
--- /dev/null
+++ b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/IqfyvktccVsxgbnNuEPzKqzy7zIp.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Info location="4da9021e-9e2a-434b-baeb-233409fc6beb" type="Reference"/>
\ No newline at end of file
diff --git a/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/Ll50Ztwg-ifpOl8RgBHWQt2AeTEd.xml b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/Ll50Ztwg-ifpOl8RgBHWQt2AeTEd.xml
new file mode 100644
index 0000000..db6ff84
--- /dev/null
+++ b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/Ll50Ztwg-ifpOl8RgBHWQt2AeTEd.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Info Ref="apps/image_measurement/batch_crop" Type="Relative"/>
\ No newline at end of file
diff --git a/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/Ll50Ztwg-ifpOl8RgBHWQt2AeTEp.xml b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/Ll50Ztwg-ifpOl8RgBHWQt2AeTEp.xml
new file mode 100644
index 0000000..910333f
--- /dev/null
+++ b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/Ll50Ztwg-ifpOl8RgBHWQt2AeTEp.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Info location="cab3d9ea-4d4f-47b7-9668-0fe46592278f" type="Reference"/>
\ No newline at end of file
diff --git a/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/VXq-RV6fbWaSXOvrjzgnrwIDBlsd.xml b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/VXq-RV6fbWaSXOvrjzgnrwIDBlsd.xml
new file mode 100644
index 0000000..419d129
--- /dev/null
+++ b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/VXq-RV6fbWaSXOvrjzgnrwIDBlsd.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Info Ref="apps/electrochem/cic" Type="Relative"/>
\ No newline at end of file
diff --git a/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/VXq-RV6fbWaSXOvrjzgnrwIDBlsp.xml b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/VXq-RV6fbWaSXOvrjzgnrwIDBlsp.xml
new file mode 100644
index 0000000..263dc8a
--- /dev/null
+++ b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/VXq-RV6fbWaSXOvrjzgnrwIDBlsp.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Info location="af72c41d-33ef-42d0-8f5a-6d61e56706b8" type="Reference"/>
\ No newline at end of file
diff --git a/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/mWk__sCaD7Ux4zNDnBrnl1l4puwd.xml b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/mWk__sCaD7Ux4zNDnBrnl1l4puwd.xml
new file mode 100644
index 0000000..533009e
--- /dev/null
+++ b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/mWk__sCaD7Ux4zNDnBrnl1l4puwd.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Info Ref="apps/electrochem/csc" Type="Relative"/>
\ No newline at end of file
diff --git a/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/mWk__sCaD7Ux4zNDnBrnl1l4puwp.xml b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/mWk__sCaD7Ux4zNDnBrnl1l4puwp.xml
new file mode 100644
index 0000000..677497a
--- /dev/null
+++ b/resources/project/EEtUlUb-dLAdf0KpMVivaUlztwA/mWk__sCaD7Ux4zNDnBrnl1l4puwp.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Info location="8662c75b-8b84-4229-a1de-8aa08cbbe632" type="Reference"/>
\ No newline at end of file
diff --git a/tests/integration/project/ProjectDocumentationGuardrailTest.m b/tests/integration/project/ProjectDocumentationGuardrailTest.m
index 3f38bb2..5524edd 100644
--- a/tests/integration/project/ProjectDocumentationGuardrailTest.m
+++ b/tests/integration/project/ProjectDocumentationGuardrailTest.m
@@ -52,6 +52,24 @@ function privateHelperContractDebtDoesNotGrow(testCase)
             fprintf('Private helper contract debt inventory: %d files missing top-of-file contracts.\n', ...
                 totalMissing);
         end
+
+        function appOwnedPackageHelpersDocumentImplementationContracts(testCase)
+            root = setupLabKitTestPath();
+            files = collectAppOwnedPackageFiles(root);
+            testCase.assertFalse(isempty(files), ...
+                'App-owned package contract guardrail should scan package helper files.');
+
+            missing = strings(1, 0);
+            for k = 1:numel(files)
+                if ~hasTopFileContract(files(k))
+                    missing(end+1) = string(relativePath(root, files(k))); %#ok<AGROW>
+                end
+            end
+
+            testCase.verifyTrue(isempty(missing), ...
+                ['App-owned package helpers need top-of-file implementation contracts: ' ...
+                strjoin(cellstr(missing), ', ')]);
+        end
     end
 end
 
@@ -106,6 +124,19 @@ function privateHelperContractDebtDoesNotGrow(testCase)
     end
 end
 
+function files = collectAppOwnedPackageFiles(root)
+    entries = dir(fullfile(root, 'apps', '**', '+*', '**', '*.m'));
+    files = strings(1, 0);
+    for k = 1:numel(entries)
+        filepath = string(fullfile(entries(k).folder, entries(k).name));
+        if contains(filepath, [filesep 'private' filesep])
+            continue;
+        end
+        files(end+1) = filepath; %#ok<AGROW>
+    end
+    files = unique(files);
+end
+
 function folders = collectPrivateDirs(folder)
     folders = strings(1, 0);
     if ~isfolder(folder)
diff --git a/tests/integration/project/ProjectStructureGuardrailTest.m b/tests/integration/project/ProjectStructureGuardrailTest.m
index b67cd3e..5979753 100644
--- a/tests/integration/project/ProjectStructureGuardrailTest.m
+++ b/tests/integration/project/ProjectStructureGuardrailTest.m
@@ -146,6 +146,32 @@ function imageMeasurementAppsUseOwnedPackageNamespaces(testCase)
                 {'+export', '+io', '+ops', '+state', '+view'});
         end
 
+        function electrochemAppsUseOwnedPackageNamespaces(testCase)
+            root = setupLabKitTestPath();
+
+            testCase.verifyFalse(isfolder(fullfile(root, 'apps', 'electrochem', 'private')), ...
+                'Electrochem apps should use app-owned packages, not apps/electrochem/private.');
+            workflowFiles = dir(fullfile(root, 'apps', 'electrochem', '**', '*Workflow.m'));
+            testCase.verifyTrue(isempty(workflowFiles), ...
+                'Electrochem apps should not keep string-dispatch workflow adapters.');
+
+            assertElectrochemPackageLayout(testCase, root, ...
+                'chrono_overlay', 'chrono_overlay', ...
+                {'+core', '+export', '+ops', '+ui', '+view'});
+            assertElectrochemPackageLayout(testCase, root, ...
+                'cic', 'cic', ...
+                {'+core', '+export', '+ops', '+ui', '+view'});
+            assertElectrochemPackageLayout(testCase, root, ...
+                'csc', 'csc', ...
+                {'+core', '+ops', '+ui'});
+            assertElectrochemPackageLayout(testCase, root, ...
+                'eis', 'eis', ...
+                {'+core', '+export', '+ops', '+ui', '+view'});
+            assertElectrochemPackageLayout(testCase, root, ...
+                'vt_resistance', 'vt_resistance', ...
+                {'+core', '+export', '+ops', '+ui', '+view'});
+        end
+
         function sensitiveSampleHygieneScansTrackedText(testCase)
             root = setupLabKitTestPath();
             files = collectTrackedTextScope(root);
@@ -173,6 +199,10 @@ function startupPathKeepsPrivateHelpersPrivate(testCase)
                 'startup_labkit should add apps/ to the path.');
             testCase.verifyTrue(pathContains(fullfile(root, 'apps', 'electrochem')), ...
                 'startup_labkit should add nested app category folders to the path.');
+            testCase.verifyTrue(pathContains(fullfile(root, 'apps', 'electrochem', 'cic')), ...
+                'startup_labkit should add nested electrochem app folders.');
+            testCase.verifyFalse(pathContains(fullfile(root, 'apps', 'electrochem', 'cic', '+cic')), ...
+                'startup_labkit should not expose electrochem app-owned package folders directly.');
             testCase.verifyTrue(pathContains(fullfile(root, 'apps', 'image_measurement', 'curvature')), ...
                 'startup_labkit should add nested image measurement app folders.');
             testCase.verifyFalse(pathContains(fullfile(root, 'apps', 'image_measurement', 'curvature', 'private')), ...
@@ -183,6 +213,51 @@ function startupPathKeepsPrivateHelpersPrivate(testCase)
     end
 end
 
+function assertElectrochemPackageLayout(testCase, root, appFolder, packageName, componentDirs)
+    appDir = fullfile(root, 'apps', 'electrochem', appFolder);
+    packageDir = fullfile(appDir, ['+' packageName]);
+
+    testCase.verifyTrue(isfolder(appDir), ...
+        ['Missing electrochem app folder: apps/electrochem/' appFolder]);
+    testCase.verifyTrue(isfile(fullfile(appDir, appEntrypointName(appFolder))), ...
+        ['Missing electrochem app entrypoint under ' relativePath(root, appDir)]);
+    testCase.verifyFalse(isfolder(fullfile(appDir, 'private')), ...
+        ['Electrochem app should use an app-owned package, not private/: ' appFolder]);
+    testCase.verifyFalse(isfolder(fullfile(appDir, '+app')), ...
+        ['Electrochem app should not use a fixed +app namespace: ' appFolder]);
+    workflowFiles = dir(fullfile(appDir, '*Workflow.m'));
+    testCase.verifyTrue(isempty(workflowFiles), ...
+        ['Electrochem app should not keep workflow dispatch adapters: ' appFolder]);
+    testCase.verifyTrue(isfolder(packageDir), ...
+        ['Missing electrochem app-owned package namespace: ' relativePath(root, packageDir)]);
+
+    packageFiles = dir(fullfile(packageDir, '**', '*.m'));
+    testCase.verifyFalse(isempty(packageFiles), ...
+        ['Electrochem app-owned package should contain helper files: ' relativePath(root, packageDir)]);
+    for iDir = 1:numel(componentDirs)
+        testCase.verifyTrue(isfolder(fullfile(packageDir, componentDirs{iDir})), ...
+            ['Missing electrochem component package ' componentDirs{iDir} ...
+            ' under ' relativePath(root, packageDir)]);
+    end
+end
+
+function name = appEntrypointName(appFolder)
+    switch appFolder
+        case 'chrono_overlay'
+            name = 'labkit_ChronoOverlay_app.m';
+        case 'cic'
+            name = 'labkit_CIC_app.m';
+        case 'csc'
+            name = 'labkit_CSC_app.m';
+        case 'eis'
+            name = 'labkit_EIS_app.m';
+        case 'vt_resistance'
+            name = 'labkit_VTResistance_app.m';
+        otherwise
+            error('Unknown electrochem app folder: %s', appFolder);
+    end
+end
+
 function assertImageMeasurementPackageLayout(testCase, root, appFolder, packageName, componentDirs)
     appDir = fullfile(root, 'apps', 'image_measurement', appFolder);
     packageDir = fullfile(appDir, ['+' packageName]);
diff --git a/tests/integration/project/StartupBoundariesTest.m b/tests/integration/project/StartupBoundariesTest.m
index 376d37b..65abd81 100644
--- a/tests/integration/project/StartupBoundariesTest.m
+++ b/tests/integration/project/StartupBoundariesTest.m
@@ -22,6 +22,14 @@ function verify_startup_boundaries()
     assert(pathContains(fullfile(root, 'apps')), 'startup_labkit should add apps/ to the path.');
     assert(pathContains(fullfile(root, 'apps', 'electrochem')), ...
         'startup_labkit should add nested app category folders to the path.');
+    assert(pathContains(fullfile(root, 'apps', 'electrochem', 'cic')), ...
+        'startup_labkit should add nested electrochem app folders to the path.');
+    assert(pathContains(fullfile(root, 'apps', 'electrochem', 'vt_resistance')), ...
+        'startup_labkit should add nested electrochem app folders to the path.');
+    assert(~pathContains(fullfile(root, 'apps', 'electrochem', 'cic', '+cic')), ...
+        'startup_labkit should not expose electrochem app-owned package folders as direct path entries.');
+    assert(~pathContains(fullfile(root, 'apps', 'electrochem', 'vt_resistance', '+vt_resistance')), ...
+        'startup_labkit should not expose electrochem app-owned package folders as direct path entries.');
     assert(pathContains(fullfile(root, 'apps', 'image_measurement')), ...
         'startup_labkit should add image measurement app category folders to the path.');
     assert(pathContains(fullfile(root, 'apps', 'image_measurement', 'curvature')), ...
diff --git a/tests/unit/apps/electrochem/ChronoOverlayExportTest.m b/tests/unit/apps/electrochem/ChronoOverlayExportTest.m
index 776242d..fc100a0 100644
--- a/tests/unit/apps/electrochem/ChronoOverlayExportTest.m
+++ b/tests/unit/apps/electrochem/ChronoOverlayExportTest.m
@@ -28,7 +28,7 @@ function checkGapCenterAlignment()
         'gap_end', 0.5, ...
         'method', 'synthetic');
 
-    [aligned, msg] = electrochemWorkflow("chronoOverlay", "alignByPulseGap", item);
+    [aligned, msg] = chrono_overlay.ops.alignByPulseGap(item);
 
     assertClose(aligned.alignTime, 0.4, 1e-12, ...
         'Chrono overlay gap-center align time');
@@ -48,7 +48,7 @@ function checkFallbackAlignment()
     item.Im = zeros(size(item.t));
     item.pulse = struct('ok', false, 'message', 'synthetic pulse not found');
 
-    [aligned, msg] = electrochemWorkflow("chronoOverlay", "alignByPulseGap", item);
+    [aligned, msg] = chrono_overlay.ops.alignByPulseGap(item);
 
     assertClose(aligned.alignTime, 2, 1e-12, ...
         'Chrono overlay fallback align time');
@@ -65,7 +65,7 @@ function checkMergedExportInterpolation()
         [100; 200], [10; 20]);
     itemC = makeOverlayItem('single sample.DTA', 0, 42, 5);
 
-    T = electrochemWorkflow("chronoOverlay", "buildOverlayExportTable", ...
+    T = chrono_overlay.export.buildOverlayExportTable(...
         [itemA, itemB, itemC]);
 
     assertClose(T.TimeGapCenterAligned_s, [-1; -0.5; 0; 0.5; 1], 1e-12, ...
diff --git a/tests/unit/apps/electrochem/CicExportTest.m b/tests/unit/apps/electrochem/CicExportTest.m
index 7046b92..bb207e0 100644
--- a/tests/unit/apps/electrochem/CicExportTest.m
+++ b/tests/unit/apps/electrochem/CicExportTest.m
@@ -78,17 +78,17 @@ function deleteIfExists(filepath)
 end
 
 function A = computeCIC(item, opts)
-    A = electrochemWorkflow("cic", "computeCIC", item, opts);
+    A = cic.ops.computeCIC(item, opts);
 end
 
 function T = buildCICResultsTable(items, unitLabel)
-    T = electrochemWorkflow("cic", "buildResultsTable", items, unitLabel);
+    T = cic.export.buildResultsTable(items, unitLabel);
 end
 
 function [C, cols] = buildCICBatchTableData(items, unitLabel)
-    [C, cols] = electrochemWorkflow("cic", "buildBatchTableData", items, unitLabel);
+    [C, cols] = cic.view.buildBatchTableData(items, unitLabel);
 end
 
 function writeCICResultsCSV(items, filepath, unitLabel)
-    electrochemWorkflow("cic", "writeResultsCSV", items, filepath, unitLabel);
+    cic.export.writeResultsCSV(items, filepath, unitLabel);
 end
diff --git a/tests/unit/apps/electrochem/ComputeCICTest.m b/tests/unit/apps/electrochem/ComputeCICTest.m
index c548066..e6181dc 100644
--- a/tests/unit/apps/electrochem/ComputeCICTest.m
+++ b/tests/unit/apps/electrochem/ComputeCICTest.m
@@ -78,5 +78,5 @@ function verify_computeCIC()
 end
 
 function A = computeCIC(item, opts)
-    A = electrochemWorkflow("cic", "computeCIC", item, opts);
+    A = cic.ops.computeCIC(item, opts);
 end
diff --git a/tests/unit/apps/electrochem/ComputeCSCTest.m b/tests/unit/apps/electrochem/ComputeCSCTest.m
index cda8423..b1b51b7 100644
--- a/tests/unit/apps/electrochem/ComputeCSCTest.m
+++ b/tests/unit/apps/electrochem/ComputeCSCTest.m
@@ -91,5 +91,5 @@ function verify_computeCSC()
 end
 
 function A = computeCSC(curve, opts)
-    A = electrochemWorkflow("csc", "computeCSC", curve, opts);
+    A = csc.ops.computeCSC(curve, opts);
 end
diff --git a/tests/unit/apps/electrochem/ComputeVTResistanceTest.m b/tests/unit/apps/electrochem/ComputeVTResistanceTest.m
index d7c3c97..64ca022 100644
--- a/tests/unit/apps/electrochem/ComputeVTResistanceTest.m
+++ b/tests/unit/apps/electrochem/ComputeVTResistanceTest.m
@@ -66,5 +66,5 @@ function verify_computeVTResistance()
 end
 
 function A = computeVTResistance(item, opts)
-    A = electrochemWorkflow("vtResistance", "computeResistance", item, opts);
+    A = vt_resistance.ops.computeResistance(item, opts);
 end
diff --git a/tests/unit/apps/electrochem/EisOverlayExportTest.m b/tests/unit/apps/electrochem/EisOverlayExportTest.m
index e1110aa..462e8cb 100644
--- a/tests/unit/apps/electrochem/EisOverlayExportTest.m
+++ b/tests/unit/apps/electrochem/EisOverlayExportTest.m
@@ -49,9 +49,9 @@ function verify_eisOverlayExport()
     assert(contains(source, 'axis(ax, ''equal'')'), ...
         'EIS app should preserve equal-axis Nyquist plot behavior.');
 
-    zreal = electrochemWorkflow("eis", "valuesForAxis", item, 'Zreal (ohm)');
+    zreal = eis.ops.valuesForAxis(item, 'Zreal (ohm)');
     assertClose(zreal, item.Zreal, 'EIS app axis-value hook should preserve Zreal values');
-    T = electrochemWorkflow("eis", "buildExportTable", item, ...
+    T = eis.export.buildExportTable(item, ...
         'Zreal (ohm)', '-Zimag (ohm)', false, false);
     assert(isequal(T.Properties.VariableNames(1), {'RowIndex'}), ...
         'EIS export table hook should preserve RowIndex as the first column.');
@@ -60,6 +60,7 @@ function verify_eisOverlayExport()
 function source = readAppOwnedSource(appFile)
     appDir = fileparts(appFile);
     sourceParts = {fileread(appFile)};
+
     privateDir = fullfile(appDir, 'private');
     if exist(privateDir, 'dir') == 7
         fileEntries = dir(fullfile(privateDir, '*.m'));
@@ -68,5 +69,17 @@ function verify_eisOverlayExport()
             sourceParts{end+1} = fileread(fullfile(privateDir, fileNames{iFile})); %#ok<AGROW>
         end
     end
+
+    packageEntries = dir(fullfile(appDir, '+*'));
+    packageDirs = packageEntries([packageEntries.isdir]);
+    for iDir = 1:numel(packageDirs)
+        packageDir = fullfile(packageDirs(iDir).folder, packageDirs(iDir).name);
+        fileEntries = dir(fullfile(packageDir, '**', '*.m'));
+        filePaths = sort(fullfile({fileEntries.folder}, {fileEntries.name}));
+        for iFile = 1:numel(filePaths)
+            sourceParts{end+1} = fileread(filePaths{iFile}); %#ok<AGROW>
+        end
+    end
+
     source = strjoin(sourceParts, newline);
 end
diff --git a/tests/unit/apps/electrochem/VtResistanceExportTest.m b/tests/unit/apps/electrochem/VtResistanceExportTest.m
index c44f48f..d849285 100644
--- a/tests/unit/apps/electrochem/VtResistanceExportTest.m
+++ b/tests/unit/apps/electrochem/VtResistanceExportTest.m
@@ -68,17 +68,17 @@ function deleteIfExists(filepath)
 end
 
 function A = computeVTResistance(item, opts)
-    A = electrochemWorkflow("vtResistance", "computeResistance", item, opts);
+    A = vt_resistance.ops.computeResistance(item, opts);
 end
 
 function T = buildVTResultsTable(items)
-    T = electrochemWorkflow("vtResistance", "buildResultsTable", items);
+    T = vt_resistance.export.buildResultsTable(items);
 end
 
 function C = buildVTBatchTableData(items)
-    C = electrochemWorkflow("vtResistance", "buildBatchTableData", items);
+    C = vt_resistance.view.buildBatchTableData(items);
 end
 
 function writeVTResultsCSV(items, filepath)
-    electrochemWorkflow("vtResistance", "writeResultsCSV", items, filepath);
+    vt_resistance.export.writeResultsCSV(items, filepath);
 end