feat: make render window configurable via tui.renderWindow

config.yaml

@@ -86,6 +86,7 @@ schedules:
 tui:
   name: madz
   cursorChar: "█"
+  renderWindow: 100
 agent:
   recursionLimit: 1000
   autoContinueLimit: 1000

coverage.txt

@@ -16,10 +16,13 @@
 ℹ    research.js                 | 100.00 |   100.00 |  100.00 | 
 ℹ    search.js                   | 100.00 |   100.00 |  100.00 | 
 ℹ    security-audit.js           | 100.00 |   100.00 |  100.00 | 
+ℹ    seo-analyst.js              | 100.00 |   100.00 |  100.00 | 
 ℹ    testing.js                  | 100.00 |   100.00 |  100.00 | 
+ℹ    text-editor.js              | 100.00 |   100.00 |  100.00 | 
+ℹ    translator.js               | 100.00 |   100.00 |  100.00 | 
 ℹ  config                        |        |          |         | 
 ℹ   config.js                    | 100.00 |   100.00 |  100.00 | 
-ℹ   loader.js                    |  92.63 |    90.48 |   81.82 | 94-96 121 123 173-177 187-190
+ℹ   loader.js                    |  92.82 |    90.48 |   81.82 | 98-100 125 127 178-182 192-195
 ℹ   patch.js                     |  54.72 |   100.00 |    0.00 | 11-15 25-37 48-53
 ℹ   schemas                      |        |          |         | 
 ℹ    agent.js                    | 100.00 |   100.00 |  100.00 | 
@@ -30,6 +33,7 @@
 ℹ    sandbox.js                  | 100.00 |   100.00 |  100.00 | 
 ℹ    schedules.js                | 100.00 |   100.00 |  100.00 | 
 ℹ    skillAgentMap.js            | 100.00 |   100.00 |  100.00 | 
+ℹ    subAgentsTemperature.js     | 100.00 |   100.00 |  100.00 | 
 ℹ    telemetry.js                | 100.00 |   100.00 |  100.00 | 
 ℹ    tui.js                      | 100.00 |   100.00 |  100.00 | 
 ℹ  memory                        |        |          |         | 
@@ -63,8 +67,8 @@
 ℹ  shared                        |        |          |         | 
 ℹ   logger.js                    |  76.61 |    41.67 |   81.82 | 26-34 39 41-43 64-65 73-77 100-106 112-116 131 163-164 166-167 184-185 191-192 198-199 205-206 209-213 216
 ℹ  skills                        |        |          |         | 
-ℹ   agentMapper.js               |  73.33 |    50.00 |  100.00 | 12-13 23-25 27-29
-ℹ   discoverer.js                |  94.69 |    85.94 |  100.00 | 63-68 192-193 197-198 233-235
+ℹ   agentMapper.js               |  83.33 |    62.50 |  100.00 | 12-13 23-25
+ℹ   discoverer.js                |  94.58 |    85.71 |  100.00 | 63-68 187-188 192-193 228-230
 ℹ   registry.js                  |  65.87 |    43.48 |   42.11 | 38-78 106-107 128-129 146-147 155-164 175-177 180-182 208-214 222-226 234-238 245-246 260-267 276-283 291-292
 ℹ   types.js                     | 100.00 |   100.00 |  100.00 | 
 ℹ   validator.js                 |  83.21 |    70.59 |   80.00 | 19-20 27-28 68 70 72-73 78 82-84 105-107 119-121 130-134
@@ -106,13 +110,14 @@
 ℹ   index.js                     | 100.00 |    94.12 |  100.00 | 
 ℹ   memory.js                    |  96.52 |    83.56 |   93.33 | 55 98-99 194-198 298-300
 ℹ   moa.js                       | 100.00 |    94.44 |   84.62 | 
+ℹ   namecom                      |        |          |         | 
+ℹ    index.js                    |  70.84 |   100.00 |    0.00 | 21-29 36-44 53-112 129-151 199-202 223-226 229-231 240-242 245-248 251-253 267-271 306-310 425-448
 ℹ   pdfGenerate.js               |  90.48 |    80.00 |   82.61 | 39-40 59-60 66-70 74-75 77 97 113-114 124-125 141-156 164-166 168-169 171 179-188 224-228 249 331-332 366-367 450-451 469-471 473-475 477-479 481-483 504-505 582-583 614-615 660-661 787-790
-ℹ   process.js                   |  89.47 |    76.67 |   80.00 | 38-41 93-94 100-102 108-109 116-117 124-125 127
+ℹ   process.js                   |  87.07 |    76.47 |   80.00 | 41-44 55-58 95 107 137-138 153-154 214-215 226-227 233-235 241-242 244-250 252-258 260
 ℹ   reflection.js                |  95.18 |    82.00 |   91.67 | 58-62 127-128 151-152 206-207
 ℹ   sampling.js                  |  94.97 |    81.82 |   80.00 | 27 180-188
 ℹ   scanAgents.js                | 100.00 |    80.00 |  100.00 | 
 ℹ   session_search.js            |  97.06 |    71.19 |   94.12 | 71-72 118-119 128 181-182
-ℹ   shell.js                     |  97.22 |    77.27 |   90.00 | 40 69-70
 ℹ   skills.js                    |  88.47 |    85.48 |  100.00 | 68-69 96-97 124-132 143-150 170-177 193-195 210-211
 ℹ   spreadsheet                  |        |          |         | 
 ℹ    csv.js                      |  37.06 |   100.00 |    0.00 | 24-68 84-120 129-131 140-145 155-170
@@ -131,13 +136,13 @@
 ℹ   inputPanel.js                | 100.00 |   100.00 |  100.00 | 
 ℹ   markdownText.js              |  72.95 |    78.82 |   83.02 | 16-18 40-118 158 182-184 262-263 274-275 304-310 325-333 336-338 348-354 369-390 401-402 453-454 457-458 464
 ℹ   messageBubble.js             |  85.30 |    53.13 |   71.43 | 139-144 163-166 181-190 195-202 207-214 255-259
-ℹ   messageList.js               |  79.81 |    72.73 |   50.00 | 68 85-88 113-136 146-169 178 185-190 233 241 249 258-264 273 281-286 308-310 344-345 388
+ℹ   messageList.js               |  79.76 |    72.73 |   50.00 | 64 81-84 109-133 143-166 175 182-187 230 238 246 255-261 270 278-283 305-307 348-349 392
 ℹ   messages.js                  | 100.00 |    94.44 |  100.00 | 
 ℹ   panels.js                    | 100.00 |   100.00 |  100.00 | 
 ℹ   statusBar.js                 |  90.82 |    81.25 |  100.00 | 22-23 34-40
 ℹ  workspace                     |        |          |         | 
 ℹ   loadAgents.js                | 100.00 |    87.50 |  100.00 | 
 ℹ ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-ℹ all files                      |  66.52 |    83.08 |   56.62 | 
+ℹ all files                      |  66.68 |    83.26 |   51.57 | 
 ℹ ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 ℹ end of coverage report

src/config/schemas/tui.js

@@ -3,4 +3,5 @@ import { z } from "zod";
 export const TuiSchema = z.object({
 	name: z.string().default("madz"),
 	cursorChar: z.string().default("\u2588"),
+	renderWindow: z.number().int().min(1).default(100),
 });

src/tui/app.js

@@ -950,6 +950,7 @@ export default function App({
 						},
 						React.createElement(ConversationPanel, {
 							assistantName: config?.tui?.name || "Assistant",
+							renderWindow: config?.tui?.renderWindow ?? 100,
 							messageListRef,
 						}),
 					),

src/tui/conversationPanel.js

@@ -67,13 +67,15 @@ export function getBubbleStyle(role) {
  * @param {Object} props
  * @param {Array} [props.messages] - Messages to display (for session restore)
  * @param {string} [props.assistantName] - Name for assistant messages
+ * @param {number} [props.renderWindow] - Number of messages to render (from config)
  * @param {React.Ref} [props.scrollRef] - Optional external scroll ref
  * @param {React.Ref} [props.messageListRef] - Optional ref for imperative access
  * @returns {React.ReactElement}
  */
 export function ConversationPanel({
 	messages = [],
 	assistantName = "Assistant",
+	renderWindow,
 	scrollRef: externalScrollRef,
 	messageListRef,
 }) {
@@ -93,6 +95,7 @@ export function ConversationPanel({
 		React.createElement(MessageList, {
 			ref: panelRef,
 			assistantName,
+			renderWindow,
 			scrollRef: externalScrollRef,
 		}),
 	);

src/tui/messageList.js

@@ -22,11 +22,6 @@ export function PubSubProvider({ subscribe, unsubscribe, publish, children }) {
 	);
 }
 
-/**
- * Maximum number of messages to render in the React tree.
- */
-const MAX_RENDER_MESSAGES = 100;
-
 // Monotonic counter for generating stable message IDs.
 let _messageIdCounter = 0;
 
@@ -40,12 +35,18 @@ let _messageIdCounter = 0;
  * @param {Object} props
  * @param {Array} [props.messages] - Initial messages array for session restore
  * @param {string} [props.assistantName] - Name to display for assistant messages
+ * @param {number} [props.renderWindow] - Number of messages to render (from config)
  * @param {React.Ref} [props.forwardRef] - For exposed imperative API
  * @param {React.Ref} [props.scrollRef] - Forwarded scroll ref for external keyboard nav
  * @returns {React.ReactElement}
  */
 export const MessageList = forwardRef(function MessageList(
-	{ messages: _messages = [], assistantName = "Assistant", scrollRef: externalScrollRef },
+	{
+		messages: _messages = [],
+		assistantName = "Assistant",
+		renderWindow,
+		scrollRef: externalScrollRef,
+	},
 	forwardRef,
 ) {
 	const internalRef = useRef(null);
@@ -132,6 +133,7 @@ export const MessageList = forwardRef(function MessageList(
 
 			idsRef.current.push(id);
 			idToIdxRef.current.set(id, idsRef.current.length - 1);
+
 			triggerRender();
 			return id;
 		},
@@ -329,17 +331,24 @@ export const MessageList = forwardRef(function MessageList(
 		lastMsgCountRef.current = idsRef.current.length;
 	};
 
-	// Render the last MAX_RENDER_MESSAGES as MessageBubble elements.
+	// Render the last N messages as MessageBubble elements.
 	// Each bubble subscribes to its own pub/sub topic for streaming updates.
 	// Children array is stabilized in a ref — only rebuilt when message count
 	// changes (new message added, pruned, or cleared). This lets Ink's diffing
 	// reuse existing elements and only update the one bubble that changed.
+	//
+	// The data layer stores all messages without a cap. The ScrollView handles
+	// scrolling through the full conversation history. The render window keeps
+	// the React tree bounded; pub/sub topics for messages far from the current
+	// view are pruned to keep memory bounded.
 	const childrenRef = useRef(null);
 
-	const renderData = idsRef.current.slice(-MAX_RENDER_MESSAGES);
-
-	// Prune pub/sub topics for messages that fell off the render slice.
-	const prunedIds = idsRef.current.slice(0, -MAX_RENDER_MESSAGES);
+	// Virtual render window — keeps the React tree bounded while the data
+	// layer stores all messages. The ScrollView scrolls through the full
+	// conversation history; only the last N messages are rendered as bubbles.
+	// Configurable via `tui.renderWindow` in config.yaml.
+	const renderData = idsRef.current.slice(-renderWindow);
+	const prunedIds = idsRef.current.slice(0, idsRef.current.length - renderWindow);
 	for (const id of prunedIds) {
 		topicsRef.current.delete(`msg-${id}`);
 	}

tests/unit/messageListApi.test.js

@@ -6,6 +6,10 @@ import assert from "node:assert";
  * Simulates the imperative API used by MessageList without React.
  * Tests the addMessage, updateMessage, clear, setMessages workflow
  * including pub/sub topic management.
+ *
+ * Note: The data layer stores all messages without a cap.
+ * The render layer uses a virtual window (last 100 messages) for
+ * performance, but the underlying data structures grow unbounded.
  */
 describe("messageList imperative API simulation", () => {
 	let pubsub;

tests/unit/tui.test.js

@@ -1165,7 +1165,7 @@ describe("TUI - scroll throttle behavior", () => {
 });
 
 describe("MessageList - render window limits React tree size", () => {
-	it("uses MAX_RENDER_MESSAGES window from messageList", async () => {
+	it("mounts and unmounts without error", async () => {
 		const { MessageList } = await import("../../src/tui/messageList.js");
 		const { unmount: um } = render(
 			React.createElement(MessageList, {