diff --git a/dashboard/observablehq.config.js b/dashboard/observablehq.config.js
index 9fdcfb2..e30abbe 100644
--- a/dashboard/observablehq.config.js
+++ b/dashboard/observablehq.config.js
@@ -10,9 +10,7 @@ const _configDir = dirname(fileURLToPath(import.meta.url));
 const _modalScript = readFileSync(
   join(_configDir, "src/components/improvement-modal.js"), "utf-8"
 )
-  // Strip ES module exports so the file can run as a plain <script>.
-  .replace(/^export function /gm, "function ")
-  .replace(/^export const /gm, "const ")
+  .replace(/^export function /gm, "function ")   // strip ES module export
   + "\ninitImprovementModal();\n";               // auto-initialise
 
 export default {
diff --git a/dashboard/src/components/improvement-modal.js b/dashboard/src/components/improvement-modal.js
index 133bc00..c2cdb51 100644
--- a/dashboard/src/components/improvement-modal.js
+++ b/dashboard/src/components/improvement-modal.js
@@ -12,59 +12,10 @@
  * Submissions are stored as technical-debt items with debt_type="dashboard-improvement".
  *
  * Interaction:
- *   - Hold Shift 1s → cursor changes to copy/highlight mode (shift-wait-click)
+ *   - Hold Shift → cursor changes to crosshair across the entire page
  *   - Shift+click any element (except form controls) → opens suggestion modal
  */
 
-/** Domain slug for dashboard-improvement TD records (state-hub lives under infotech). */
-export const DEFAULT_IMPROVEMENT_DOMAIN = "infotech";
-const DEFAULT_API = "http://127.0.0.1:8000";
-const API_STORAGE_KEY = "stateHubApiBase";
-
-/**
- * Resolve API base when init is called without an explicit apiBase.
- * Mirrors dashboard/src/components/config.js so the modal works when the
- * dashboard is not on 127.0.0.1 (remote host, tunnel, storage override).
- */
-export function resolveImprovementApiBase({
-  location = globalThis.location,
-  storage = globalThis.localStorage,
-} = {}) {
-  const clean = (value) => {
-    if (typeof value !== "string") return null;
-    const cleaned = value.trim().replace(/\/+$/, "");
-    return cleaned || null;
-  };
-  try {
-    if (location?.href) {
-      const url = new URL(location.href);
-      for (const name of ["api_base", "apiBase"]) {
-        const q = clean(url.searchParams.get(name));
-        if (q) return q;
-      }
-    }
-  } catch { /* ignore */ }
-  const fromGlobal = clean(globalThis.STATE_HUB_API_BASE);
-  if (fromGlobal) return fromGlobal;
-  try {
-    const fromStorage = clean(storage?.getItem?.(API_STORAGE_KEY));
-    if (fromStorage) return fromStorage;
-  } catch { /* ignore */ }
-  try {
-    if (location?.href) {
-      const url = new URL(location.href);
-      if (!["http:", "https:"].includes(url.protocol)) return DEFAULT_API;
-      if (url.hostname === "::1" || url.hostname === "[::1]") return DEFAULT_API;
-      url.port = globalThis.STATE_HUB_API_PORT || "8000";
-      url.pathname = "";
-      url.search = "";
-      url.hash = "";
-      return url.origin;
-    }
-  } catch { /* ignore */ }
-  return DEFAULT_API;
-}
-
 const _STYLE_ID = "improvement-modal-styles";
 
 function _ensureStyles() {
@@ -288,13 +239,10 @@ let _initialized = false;
  * Safe to call multiple times — only the first call takes effect.
  *
  * @param {object} opts
- * @param {string} [opts.apiBase]  State Hub API base URL (resolved like config.js if omitted)
- * @param {string} [opts.domain]   Domain slug for the TD record (default: "infotech")
+ * @param {string} opts.apiBase  State Hub API base URL (default: "http://127.0.0.1:8000")
+ * @param {string} opts.domain   Domain slug for the TD record  (default: "custodian")
  */
-export function initImprovementModal({
-  apiBase = resolveImprovementApiBase(),
-  domain = DEFAULT_IMPROVEMENT_DOMAIN,
-} = {}) {
+export function initImprovementModal({ apiBase = "http://127.0.0.1:8000", domain = "custodian" } = {}) {
   if (_initialized) return;
   _initialized = true;
   _ensureStyles();
@@ -443,10 +391,7 @@ export function initImprovementModal({
       try {
         const r = await fetch(`${apiBase}/technical-debt/`, {
           method: "POST",
-          headers: {
-            "Content-Type": "application/json",
-            "X-StateHub-Component": "state-hub.dashboard.improvement-modal",
-          },
+          headers: { "Content-Type": "application/json" },
           body: JSON.stringify(payload),
         });
         if (r.ok) {
@@ -455,13 +400,7 @@ export function initImprovementModal({
         } else {
           submitBtn.disabled = false;
           submitBtn.textContent = "Submit suggestion";
-          let detail = `HTTP ${r.status}`;
-          try {
-            const body = await r.json();
-            if (typeof body?.detail === "string") detail = body.detail;
-            else if (body?.detail != null) detail = JSON.stringify(body.detail);
-          } catch { /* keep status-only detail */ }
-          _toast(`⚠ Submission failed (${detail})`);
+          _toast(`⚠ Submission failed (HTTP ${r.status})`);
         }
       } catch {
         submitBtn.disabled = false;
diff --git a/dashboard/src/components/workplan-search.js b/dashboard/src/components/workplan-search.js
deleted file mode 100644
index aa355e0..0000000
--- a/dashboard/src/components/workplan-search.js
+++ /dev/null
@@ -1,22 +0,0 @@
-/**
- * Case-insensitive substring match for Overview "Workplans by Repository".
- * Matches title, repo, domain, filename, owner, and id.
- *
- * @param {object} workplan  Row from overview workplan_rows
- * @param {string} query     Free-text filter
- * @returns {boolean}
- */
-export function workplanMatchesSearch(workplan, query) {
-  const q = String(query ?? "").trim().toLowerCase();
-  if (!q) return true;
-  if (!workplan || typeof workplan !== "object") return false;
-  const haystack = [
-    workplan.title,
-    workplan.repo_label,
-    workplan.domain,
-    workplan.workplan_filename,
-    workplan.owner,
-    workplan.id,
-  ].filter(Boolean).join("\n").toLowerCase();
-  return haystack.includes(q);
-}
diff --git a/dashboard/src/docs/overview.md b/dashboard/src/docs/overview.md
index c25808d..ce827ac 100644
--- a/dashboard/src/docs/overview.md
+++ b/dashboard/src/docs/overview.md
@@ -24,13 +24,6 @@ by repository. Each bar is broken into four task-status segments:
 | orange | wait |
 | light grey | todo |
 
-Above the chart:
-
-- **Mode selector** — lifecycle, health, or recently-changed windows (with
-  matching workplan counts in each option).
-- **Text filter** — case-insensitive substring match on title, repository,
-  domain, workplan filename, and owner. Useful when many rows share a mode.
-
 The left axis shows the `domain / repository` label once per repository group.
 The `done/total` count is printed to the right of each bar. Workplans with no
 tasks yet show a grey "— no tasks yet" label.
diff --git a/dashboard/src/index.md b/dashboard/src/index.md
index 7deb975..3a8edc4 100644
--- a/dashboard/src/index.md
+++ b/dashboard/src/index.md
@@ -151,8 +151,6 @@ display(html`<div class="warning" style="display:${summary.error ? '' : 'none'}"
 ## Workplans by Repository
 
 ```js
-import {workplanMatchesSearch} from "./components/workplan-search.js";
-
 // ── Filter workplans by selected mode ───────────────────────────────────────
 // Lifecycle modes match stored canonical status values.
 // Health modes are derived labels; they are not stored lifecycle states.
@@ -248,18 +246,6 @@ function _setChartMode(value) {
   globalThis.__stateHubOverviewChartMode = mode;
   _chartModeState.value = mode;
 }
-
-// Free-text filter over title / repo / domain / workplan filename (persists in-tab).
-const _savedChartSearch = typeof globalThis.__stateHubOverviewChartSearch === "string"
-  ? globalThis.__stateHubOverviewChartSearch
-  : "";
-const _chartSearchState = Mutable(_savedChartSearch);
-
-function _setChartSearch(value) {
-  const q = String(value ?? "");
-  globalThis.__stateHubOverviewChartSearch = q;
-  _chartSearchState.value = q;
-}
 ```
 
 ```js
@@ -279,32 +265,14 @@ _modeSelect.addEventListener("input", () => {
 _modeSelect.addEventListener("change", () => {
   _setChartMode(_modeSelect.value);
 });
-
-const _searchInput = html`<input
-  type="search"
-  class="ws-search-input"
-  placeholder="Filter by title, repo, domain…"
-  aria-label="Filter workplans by text"
-  title="Show only workplans matching this text (title, repository, domain, filename)"
-/>`;
-_searchInput.value = String(_chartSearchState ?? "");
-_searchInput.addEventListener("input", () => {
-  _setChartSearch(_searchInput.value);
-});
-
-display(html`<div class="filter-bar ws-mode-bar" data-widget-name="Workplans by Repository">
-  ${_modeSelect}
-  <div class="filter-text-input">${_searchInput}</div>
-</div>`);
+display(_modeSelect);
 ```
 
 ```js
 import * as Plot from "npm:@observablehq/plot";
 
 const _chartModeValue = _modeValue(_chartModeState);
-const _chartSearchValue = String(_chartSearchState ?? "");
-const _chartWsFiltered = _workstreamsForMode(_chartModeValue, wsAll)
-  .filter(w => workplanMatchesSearch(w, _chartSearchValue));
+const _chartWsFiltered = _workstreamsForMode(_chartModeValue, wsAll);
 
 // Sort by domain, then repository, then most recently updated workplan.
 // The axis labels show each domain/repo group once.
@@ -352,10 +320,6 @@ function _wsTitle(d) {
 
 // ── Render ────────────────────────────────────────────────────────────────────
 if (chartWs.length === 0) {
-  const _searchQ = _chartSearchValue.trim();
-  if (_searchQ) {
-    display(html`<p style="color:gray">No workplans match “${_searchQ}” for the selected mode.</p>`);
-  } else {
   const _emptyMsg = {
     proposed: "No proposed workplans.",
     ready: "No ready workplans.",
@@ -375,7 +339,6 @@ if (chartWs.length === 0) {
     month: "No workplans changed this month.",
   };
   display(html`<p style="color:gray">${_emptyMsg[_chartModeValue] ?? "No workplans."}</p>`);
-  }
 } else {
   display(Plot.plot({
     y: {
@@ -717,7 +680,6 @@ display(Inputs.table((summary.recent_progress ?? []).map(e => ({
 .live-indicator { font-size: 0.8rem; color: gray; position: relative; padding: 0.55rem 1.8rem 0.55rem 0.7rem; margin-bottom: 0.75rem; }
 .ws-mode-bar { margin-bottom: 0.75rem; }
 .ws-mode-select { min-width: 18rem; max-width: 100%; padding: 0.35rem 0.5rem; border-radius: 4px; border: 1px solid var(--theme-foreground-faint, #ddd); background: var(--theme-background); color: var(--theme-foreground); font: inherit; }
-.ws-search-input { min-width: 14rem; max-width: 100%; height: 30px; font-size: 0.85rem; padding: 0.25rem 0.5rem; border-radius: 6px; border: 1px solid var(--theme-foreground-faint, #ccc); background: var(--theme-background, #fff); font-family: inherit; color: inherit; }
 .card { background: var(--theme-background-alt); border-radius: 8px; padding: 1rem; }
 .card.warn { border: 2px solid orange; }
 .card-link { cursor: pointer; transition: box-shadow 0.15s, transform 0.1s; text-decoration: none; color: inherit; display: block; }
diff --git a/dashboard/test/improvement-modal.test.mjs b/dashboard/test/improvement-modal.test.mjs
deleted file mode 100644
index 8fe6019..0000000
--- a/dashboard/test/improvement-modal.test.mjs
+++ /dev/null
@@ -1,46 +0,0 @@
-import assert from "node:assert/strict";
-import test from "node:test";
-import {readFileSync} from "node:fs";
-import {dirname, join} from "node:path";
-import {fileURLToPath} from "node:url";
-
-import {
-  DEFAULT_IMPROVEMENT_DOMAIN,
-  resolveImprovementApiBase,
-} from "../src/components/improvement-modal.js";
-
-const root = dirname(fileURLToPath(import.meta.url));
-const modalSource = readFileSync(
-  join(root, "../src/components/improvement-modal.js"),
-  "utf-8",
-);
-
-test("dashboard-improvement default domain is the live infotech slug", () => {
-  assert.equal(DEFAULT_IMPROVEMENT_DOMAIN, "infotech");
-  // Regression: custodian was retired from the domain registry; POST /technical-debt/
-  // returns 422 for unknown domain, so the shift-wait-click modal must not use it.
-  assert.doesNotMatch(modalSource, /domain\s*=\s*["']custodian["']/);
-  assert.match(modalSource, /domain\s*=\s*DEFAULT_IMPROVEMENT_DOMAIN/);
-  assert.match(modalSource, /debt_type:\s*["']dashboard-improvement["']/);
-});
-
-test("improvement modal api base mirrors dashboard config resolution", () => {
-  assert.equal(
-    resolveImprovementApiBase({location: null, storage: null}),
-    "http://127.0.0.1:8000",
-  );
-  assert.equal(
-    resolveImprovementApiBase({
-      location: new URL("http://localhost:3000/workstreams"),
-      storage: null,
-    }),
-    "http://localhost:8000",
-  );
-  assert.equal(
-    resolveImprovementApiBase({
-      location: new URL("http://localhost:3000/?api_base=http%3A%2F%2F127.0.0.1%3A18000%2F"),
-      storage: {getItem: () => "http://ignored.example:8000"},
-    }),
-    "http://127.0.0.1:18000",
-  );
-});
diff --git a/dashboard/test/workplan-search.test.mjs b/dashboard/test/workplan-search.test.mjs
deleted file mode 100644
index 33f5940..0000000
--- a/dashboard/test/workplan-search.test.mjs
+++ /dev/null
@@ -1,42 +0,0 @@
-import assert from "node:assert/strict";
-import test from "node:test";
-import {readFileSync} from "node:fs";
-import {dirname, join} from "node:path";
-import {fileURLToPath} from "node:url";
-
-import {workplanMatchesSearch} from "../src/components/workplan-search.js";
-
-const root = dirname(fileURLToPath(import.meta.url));
-const indexMd = readFileSync(join(root, "../src/index.md"), "utf-8");
-
-const sample = {
-  id: "abc-123",
-  title: "Overview Workstream Stage Counts",
-  repo_label: "state-hub",
-  domain: "infotech",
-  workplan_filename: "STATE-WP-0057-overview-workstream-stage-counts.md",
-  owner: "codex",
-};
-
-test("empty query matches all workplans", () => {
-  assert.equal(workplanMatchesSearch(sample, ""), true);
-  assert.equal(workplanMatchesSearch(sample, "   "), true);
-  assert.equal(workplanMatchesSearch(sample, null), true);
-});
-
-test("matches title, repo, domain, filename, owner, and id", () => {
-  assert.equal(workplanMatchesSearch(sample, "stage counts"), true);
-  assert.equal(workplanMatchesSearch(sample, "STATE-HUB"), true);
-  assert.equal(workplanMatchesSearch(sample, "Infotech"), true);
-  assert.equal(workplanMatchesSearch(sample, "wp-0057"), true);
-  assert.equal(workplanMatchesSearch(sample, "codex"), true);
-  assert.equal(workplanMatchesSearch(sample, "abc-123"), true);
-  assert.equal(workplanMatchesSearch(sample, "railiance"), false);
-});
-
-test("overview chart wires the text filter into Workplans by Repository", () => {
-  assert.match(indexMd, /workplanMatchesSearch/);
-  assert.match(indexMd, /ws-search-input/);
-  assert.match(indexMd, /Filter by title, repo, domain/);
-  assert.match(indexMd, /## Workplans by Repository/);
-});