diff --git a/docs/superpowers/specs/2026-03-13-script-library-pane-takeover-design.md b/docs/superpowers/specs/2026-03-13-script-library-pane-takeover-design.md
index 879b57d1..c37d6299 100644
--- a/docs/superpowers/specs/2026-03-13-script-library-pane-takeover-design.md
+++ b/docs/superpowers/specs/2026-03-13-script-library-pane-takeover-design.md
@@ -138,6 +138,8 @@ Two sub-states:
 
 The right pane is always read-only — no form, no Generate/Download buttons.
 
+**Layout note:** `ScriptPreview` renders a `<div className="relative">` at its root; the copy overlay button is `position: absolute, top-3, right-3` inside it. The right-pane wrapper uses `p-4` so the absolute copy button will be inset 4px from the wrapper's padding edge — visually correct. No changes to `ScriptPreview` are needed.
+
 ---
 
 ## State — Pane Mode
@@ -158,6 +160,8 @@ Transitions:
 
 **`selectTemplate` failure case:** If `selectTemplate` throws (network error), the store resets `isLoadingDetail: false` but leaves `selectedTemplate` unchanged. The pane mode remains `'configure'`. If this is the first selection (`selectedTemplate === null`), the configure pane will show neither a spinner nor template content — it will render nothing. `ScriptConfigurePane` must handle this: if `!isLoadingDetail && !selectedTemplate`, render an error state ("Failed to load template. ← Back to library").
 
+**`paramValues` and `formErrors` on Back:** `clearOutput()` does not reset `paramValues` or `formErrors`. This is intentional — if the user returns to browse mode and then clicks "Configure →" on the same template again, `selectTemplate` will repopulate `paramValues` from defaults, discarding any edits. If they configure a different template, `selectTemplate` again repopulates from that template's defaults. There is no scenario where stale param values from a prior template persist into a new template's form. No additional cleanup is needed on Back.
+
 **Filter/search preservation:** `inputValue` remains owned by `ScriptLibraryPage` at the page level. The filter bar unmounts in configure mode and remounts in browse mode with the same `inputValue`. Store's `activeCategoryId` and `searchQuery` are never cleared by pane transitions.
 
 ---
@@ -168,7 +172,7 @@ Transitions:
 |------|--------|
 | `frontend/src/pages/ScriptLibraryPage.tsx` | Add `paneMode` state; add `usePermissions` import for `canGenerate`; move `ScriptFilterBar` into left pane column; add `onConfigure`/`onBack` callbacks; render `ScriptConfigurePane` or browse content in left pane conditionally; render right pane as `ScriptPreview`-only with empty state |
 | `frontend/src/components/scripts/TemplateCard.tsx` | Root `<button>` → `<div>`; remove `onClick`/active-state; add `onConfigure: (id: string) => void` prop; add "Configure →" button |
-| `frontend/src/components/scripts/ScriptTemplateList.tsx` | Accept `onConfigure: (id: string) => void` prop; pass to each `TemplateCard` |
+| `frontend/src/components/scripts/ScriptTemplateList.tsx` | Accept `onConfigure: (id: string) => void` prop; pass to each `TemplateCard`. `onClearSearch` prop is unchanged. |
 | `frontend/src/components/scripts/ScriptConfigurePane.tsx` | **New** — configure mode layout (back button, template header, `ScriptParameterForm`, warnings, action bar with Generate + Download + Copy) |
 | `frontend/src/components/scripts/ScriptGeneratorPanel.tsx` | **Delete** — superseded by `ScriptConfigurePane` and right-pane simplification |
 
@@ -218,4 +222,6 @@ interface Props {
 }
 ```
 
-All other data read from Zustand store directly.
+All other data read from Zustand store directly. `ScriptConfigurePane` derives `canGenerate` from props only — it does NOT call `usePermissions` internally. `ScriptLibraryPage` is the sole caller of `usePermissions` for this feature.
+
+**Download filename:** `${selectedTemplate.slug}.ps1` — consistent with the current `ScriptGeneratorPanel` behavior.