feat: TUI completeness — identity, Seat Deck empty states, lean chrome (0.9.31)

Sanitize session titles, stamp CST on the topbar, fill work/sync/keys so
the sidebar never looks unfinished, drop duplicate ctx from the foot, and
tone down the scroll banner plus composer mode line.

Co-authored-by: Cursor <cursoragent@cursor.com>

include/cst_version.h

@@ -3,7 +3,7 @@
 
 #define CST_VERSION_MAJOR 0
 #define CST_VERSION_MINOR 9
-#define CST_VERSION_PATCH 30
+#define CST_VERSION_PATCH 31
 
 #define CST_VERSION_STR_(x) #x
 #define CST_VERSION_STR(x) CST_VERSION_STR_(x)

src/tui.c

@@ -2369,7 +2369,7 @@ static void approval_label(const tui_t *t, char *out, size_t sz) {
     snprintf(out, sz, "ask");
 }
 
-/* Bottom row: where/status on the left, context + palette hint on the right. */
+/* Bottom row: path / status left; palette hint right. CTX lives in Seat Deck. */
 static void draw_status(tui_t *t) {
   if (!t->status)
     return;
@@ -2386,29 +2386,11 @@ static void draw_status(tui_t *t) {
     rw = utf8_cols(right, strlen(right));
     draw_ansi_at(t->status, 0, w - rw, rw, right, CP_MUTED, 0, 0);
   } else {
-    long used;
+    snprintf(right, sizeof(right), "\033[97mctrl+p\033[39m commands");
-    int pct = ctx_percent(t, &used);
-    char tok[32];
-    fmt_tokens(used, tok, sizeof(tok));
-    char usage[64] = "";
-    cst_usage_t u;
-    cst_agent_usage(t->agent, &u, NULL);
-    if (u.requests > 0 && u.prompt > 0) {
-      int n = snprintf(usage, sizeof(usage), "%shit %ld%%", dot_sep(),
-                       u.cached * 100 / u.prompt);
-      if (u.priced && n > 0 && (size_t)n < sizeof(usage))
-        snprintf(usage + n, sizeof(usage) - (size_t)n, "%s%s%s%.2f",
-                 dot_sep(), g_ascii ? "~" : "≈", money_sym(u.currency),
-                 u.cost);
-    }
-    snprintf(right, sizeof(right),
-             "%s (%d%%)%s%s\033[97mctrl+p\033[39m commands", tok, pct, usage,
-             dot_sep());
     rw = vis_cols(right);
     if (rw > w)
       rw = w;
-    draw_ansi_at(t->status, 0, w - rw, rw, right,
+    draw_ansi_at(t->status, 0, w - rw, rw, right, CP_MUTED, 0, 0);
-                 pct >= 80 ? CP_ERROR : CP_MUTED, 0, 0);
     t->cmd_x1 = sx + w - 1;
     t->cmd_x0 = t->cmd_x1 - (int)strlen("ctrl+p commands") + 1;
   }
@@ -2428,7 +2410,7 @@ static void draw_status(tui_t *t) {
   wrefresh(t->status);
 }
 
-/* "Build · model provider · effort" on the input box's last row. */
+/* Short mode row: Build/Plan · effort — model lives in the topbar. */
 static void draw_mode_line(tui_t *t, WINDOW *w, int y, int maxw) {
   const cst_agent_config_t *cfg = cst_agent_config(t->agent);
   if (!cfg)
@@ -2439,7 +2421,7 @@ static void draw_mode_line(tui_t *t, WINDOW *w, int y, int maxw) {
   char right[160];
   int rpair = CP_BOX_MUTED;
   if (t->busy) {
-    snprintf(right, sizeof(right), "%s %.0fs  esc interrupt", spinner_frame(t),
+    snprintf(right, sizeof(right), "%s %.0fs  esc", spinner_frame(t),
              since_ms(&t->turn_t0) / 1000.0);
     rpair = CP_BOX_PRIMARY;
   } else {
@@ -2455,10 +2437,6 @@ static void draw_mode_line(tui_t *t, WINDOW *w, int y, int maxw) {
   }
   x += draw_ansi_at(w, y, x, room, cfg->plan_mode ? "Plan" : "Build",
                     cfg->plan_mode ? CP_BOX_PRIMARY : CP_BOX_ACCENT, 1, 0);
-  x += draw_ansi_at(w, y, x, room - x + 2, dot_sep(), CP_BOX_MUTED, 0, 0);
-  x += draw_ansi_at(w, y, x, room - x + 2, cfg->model, CP_BOX_BRIGHT, 0, 0);
-  x += draw_ansi_at(w, y, x, room - x + 2, " ", CP_BOX, 0, 0);
-  x += draw_ansi_at(w, y, x, room - x + 2, cfg->provider, CP_BOX_MUTED, 0, 0);
   if (eff) {
     x += draw_ansi_at(w, y, x, room - x + 2, dot_sep(), CP_BOX_MUTED, 0, 0);
     x += draw_ansi_at(w, y, x, room - x + 2, eff, CP_BOX_PRIMARY, 0, 0);
@@ -2466,7 +2444,7 @@ static void draw_mode_line(tui_t *t, WINDOW *w, int y, int maxw) {
   int npick = cst_agent_pending_count(t->agent);
   if (npick > 0) {
     char mark[32];
-    snprintf(mark, sizeof(mark), "%d image%s", npick, npick > 1 ? "s" : "");
+    snprintf(mark, sizeof(mark), "%d img", npick);
     x += draw_ansi_at(w, y, x, room - x + 2, dot_sep(), CP_BOX_MUTED, 0, 0);
     draw_ansi_at(w, y, x, room - x + 2, mark, CP_BOX_PRIMARY, 0, 0);
   }
@@ -2961,47 +2939,38 @@ static void draw_side(tui_t *t) {
     y++;
   }
 
-  /* WORK — todo + modified (quiet) */
+  /* WORK — todo + modified, or a designed idle line (no empty void). */
-  int work_hdr = 0;
+  if (y + 2 < bottom) {
-  int total = 0;
+    draw_ansi_at(s, y++, x, mw, "work", CP_SIDE_MUTED, 0, 0);
-  int todo_n = 0;
+    int total = 0;
-  if (t->show_todo && t->todo && todo_open_items(t->todo, &total) >= 0 &&
+    int todo_n = 0;
-      total > 0 && y + 2 < bottom) {
+    if (t->show_todo && t->todo && todo_open_items(t->todo, &total) >= 0 &&
-    if (!work_hdr) {
+        total > 0) {
-      draw_ansi_at(s, y++, x, mw, "work", CP_SIDE_MUTED, 0, 0);
+      for (const char *p = t->todo; *p && y < bottom - 1 && todo_n < 4;) {
-      work_hdr = 1;
+        const char *nl = strchr(p, '\n');
-    }
+        size_t len = nl ? (size_t)(nl - p) : strlen(p);
-    for (const char *p = t->todo; *p && y < bottom - 1 && todo_n < 4;) {
+        if (len >= 3) {
-      const char *nl = strchr(p, '\n');
+          int pair = CP_SIDE;
-      size_t len = nl ? (size_t)(nl - p) : strlen(p);
+          const char *mark = "[ ]";
-      if (len >= 3) {
+          if (strncmp(p, "[x]", 3) == 0)
-        int pair = CP_SIDE;
+            pair = CP_SIDE_MUTED, mark = g_ascii ? "[x]" : "[✓]";
-        const char *mark = "[ ]";
+          else if (strncmp(p, "[~]", 3) == 0)
-        if (strncmp(p, "[x]", 3) == 0)
+            pair = CP_SIDE_PRIMARY, mark = g_ascii ? "[~]" : "[•]";
-          pair = CP_SIDE_MUTED, mark = g_ascii ? "[x]" : "[✓]";
+          const char *txt = p + 3;
-        else if (strncmp(p, "[~]", 3) == 0)
+          while (txt < p + len && *txt == ' ')
-          pair = CP_SIDE_PRIMARY, mark = g_ascii ? "[~]" : "[•]";
+            txt++;
-        const char *txt = p + 3;
+          snprintf(line, sizeof(line), "%s %.*s", mark, (int)(p + len - txt),
-        while (txt < p + len && *txt == ' ')
+                   txt);
-          txt++;
+          draw_ansi_at(s, y++, x, mw, line, pair, 0, 0);
-        snprintf(line, sizeof(line), "%s %.*s", mark, (int)(p + len - txt),
+          todo_n++;
-                 txt);
+        }
-        draw_ansi_at(s, y++, x, mw, line, pair, 0, 0);
+        p = nl ? nl + 1 : p + len;
-        todo_n++;
       }
-      p = nl ? nl + 1 : p + len;
-    }
-  }
-
-  mod_file_t mods[16];
-  int nm = collect_modified(t, mods, 16);
-  if (nm > 5)
-    nm = 5;
-  if (nm > 0 && y + 1 < bottom) {
-    if (!work_hdr) {
-      draw_ansi_at(s, y++, x, mw, "work", CP_SIDE_MUTED, 0, 0);
-      work_hdr = 1;
     }
+    mod_file_t mods[16];
+    int nm = collect_modified(t, mods, 16);
+    if (nm > 5)
+      nm = 5;
     for (int i = 0; i < nm && y < bottom; i++) {
       char pl[16], mi[16];
       snprintf(pl, sizeof(pl), "+%d", mods[i].add);
@@ -3013,6 +2982,29 @@ static void draw_side(tui_t *t) {
       draw_ansi_at(s, y, px + 1, (int)strlen(mi), mi, CP_SIDE_PRIMARY, 0, 0);
       y++;
     }
+    if (todo_n == 0 && nm == 0 && y < bottom)
+      draw_ansi_at(s, y++, x, mw, "idle", CP_SIDE_MUTED, 0, 0);
+    y++;
+  }
+
+  /* SYNC — parliament quiet / pending */
+  if (y + 1 < bottom) {
+    draw_ansi_at(s, y++, x, mw, "sync", CP_SIDE_MUTED, 0, 0);
+    if (cst_parliament_sync_pending())
+      draw_ansi_at(s, y++, x, mw, "pending", CP_SIDE_PRIMARY, 0, 0);
+    else if (cst_parliament_is_active())
+      draw_ansi_at(s, y++, x, mw, "quiet", CP_SIDE_MUTED, 0, 0);
+    else
+      draw_ansi_at(s, y++, x, mw, "quiet", CP_SIDE_MUTED, 0, 0);
+    y++;
+  }
+
+  /* KEYS — always one designed hint row */
+  if (y + 1 < bottom) {
+    draw_ansi_at(s, y++, x, mw, "keys", CP_SIDE_MUTED, 0, 0);
+    draw_ansi_at(s, y++, x, mw,
+                 g_ascii ? "tab mode . ^p cmd" : "tab mode · ^p cmd",
+                 CP_SIDE_MUTED, 0, 0);
   }
 
   if (h >= 4) {
@@ -3133,16 +3125,13 @@ static void draw_log(tui_t *t) {
   }
   draw_selection(t, &dl, h, w);
   if (t->log_scroll > 0 && h > 2) {
-    char more[128];
+    char more[64];
-    snprintf(more, sizeof(more),
+    snprintf(more, sizeof(more), g_ascii ? " v%d" : " ↓%d", t->log_scroll);
-             g_ascii ? " -- %d more lines below - End/PgDn - %d above -- "
-                     : " ── %d more lines below · End/PgDn · %d above ── ",
-             t->log_scroll, start);
     wmove(t->logw, h - 1, 0);
     wclrtoeol(t->logw);
-    wattron(t->logw, A_REVERSE);
+    int mw = utf8_cols(more, strlen(more));
-    draw_ansi_line(t->logw, h - 1, w, more, CP_PRIMARY, 1, 0);
+    draw_ansi_at(t->logw, h - 1, w - mw - 1 > 0 ? w - mw - 1 : 0, mw, more,
-    wattroff(t->logw, A_REVERSE);
+                 CP_MUTED, 0, 0);
   }
   dlines_free(&dl);
   draw_completion(t, h - 1, 0, w < 90 ? w : 90, h - 1, 1);
@@ -3185,8 +3174,10 @@ static void draw_topbar(tui_t *t) {
     if (hexish)
       title = "New session";
   }
-  /* Title + model only. Role lives in the Seat Deck — a lone chair/seat
+  /* CST mark + title + model. Role lives only in the Seat Deck. */
-   * chip on the far right just duplicates it and looks stranded. */
+  int x = 1;
+  x += draw_ansi_at(w, 0, x, 3, "CST", CP_TOPBAR_ACCENT, 1, 0);
+  x += draw_ansi_at(w, 0, x, 1, " ", CP_TOPBAR_MUTED, 0, 0);
   int model_room = 0;
   char mid[160] = "";
   if (cfg) {
@@ -3194,12 +3185,12 @@ static void draw_topbar(tui_t *t) {
              cfg->provider[0] ? " · " : "", cfg->provider);
     model_room = utf8_cols(mid, strlen(mid)) + 2;
   }
-  int title_max = bw - 2 - model_room;
+  int title_max = bw - x - 1 - model_room;
   if (title_max < 8)
     title_max = 8;
   size_t tfit = utf8_fit_cols(title, strlen(title), title_max);
-  snprintf(left, sizeof(left), " %.*s", (int)tfit, title);
+  snprintf(left, sizeof(left), "%.*s", (int)tfit, title);
-  int x = draw_ansi_at(w, 0, 0, bw, left, CP_TOPBAR, 1, 0);
+  x += draw_ansi_at(w, 0, x, bw - x, left, CP_TOPBAR, 1, 0);
   if (mid[0] && x + 2 < bw)
     draw_ansi_at(w, 0, x + 2, bw - (x + 2), mid, CP_TOPBAR_MUTED, 0, 0);
   wrefresh(w);
@@ -4556,17 +4547,69 @@ static int obtain_key(tui_t *t, const char *provider, char *out, size_t n,
 
 /* --- slash commands ------------------------------------------------------- */
 
+/* First-user dumps / JSON / ctl noise make a bad session chrome title. */
+static int title_is_noisy(const char *s) {
+  if (!s || !s[0])
+    return 1;
+  while (*s == ' ' || *s == '\t')
+    s++;
+  if (*s == '{' || *s == '[')
+    return 1;
+  if (!strncmp(s, "```", 3))
+    return 1;
+  if (strstr(s, "\"version\"") || strstr(s, "task controls") ||
+      strstr(s, "\"revision\"") || strstr(s, "\"sequence\""))
+    return 1;
+  return 0;
+}
+
+/* One-line human summary into out; empty if nothing usable. */
+static void title_summarize(char *out, size_t sz, const char *src) {
+  out[0] = 0;
+  if (!src || title_is_noisy(src))
+    return;
+  while (*src == ' ' || *src == '\t' || *src == '\n' || *src == '\r')
+    src++;
+  char buf[160];
+  size_t o = 0;
+  int sp = 0;
+  for (const char *p = src; *p && *p != '\n' && *p != '\r' && o + 1 < sizeof(buf);
+       p++) {
+    unsigned char c = (unsigned char)*p;
+    if (c == ' ' || c == '\t') {
+      if (o == 0 || sp)
+        continue;
+      buf[o++] = ' ';
+      sp = 1;
+      continue;
+    }
+    sp = 0;
+    buf[o++] = (char)c;
+  }
+  buf[o] = 0;
+  if (!buf[0] || title_is_noisy(buf))
+    return;
+  size_t fit = utf8_fit_cols(buf, strlen(buf), 40);
+  snprintf(out, sz, "%.*s", (int)fit, buf);
+}
+
 static void refresh_title(tui_t *t) {
   const cst_agent_config_t *cfg = cst_agent_config(t->agent);
   char sid[128];
   cst_agent_session_id(t->agent, sid, sizeof(sid));
   cst_session_info_t in;
+  memset(&in, 0, sizeof(in));
   t->title[0] = 0;
-  if (cfg && cst_agent_store_info(cfg->workspace_root, sid, &in) == 0)
+  if (cfg)
-    snprintf(t->title, sizeof(t->title), "%s",
+    (void)cst_agent_store_info(cfg->workspace_root, sid, &in);
-             in.title[0] ? in.title : in.first_user);
+  if (in.title[0] && !title_is_noisy(in.title)) {
+    size_t fit = utf8_fit_cols(in.title, strlen(in.title), 40);
+    snprintf(t->title, sizeof(t->title), "%.*s", (int)fit, in.title);
+  } else {
+    title_summarize(t->title, sizeof(t->title), in.first_user);
+  }
   if (!t->title[0])
-    snprintf(t->title, sizeof(t->title), "%.8s", sid);
+    snprintf(t->title, sizeof(t->title), "New session");
 }
 
 static void refresh_todo(tui_t *t) {