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Add exponential backoff and status indicator to brainstorm WebSocket client #856

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Add exponential backoff and status indicator to brainstorm WebSocket client #856

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0c3c216
Add exponential backoff and status indicator to brainstorm WebSocket …
chuanghiduoc Mar 20, 2026
824d4f2
Address review: remove empty onerror, show reconnecting on close
chuanghiduoc Mar 20, 2026
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4 changes: 2 additions & 2 deletions skills/brainstorming/scripts/frame-template.html
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Original file line number Diff line number Diff line change
Expand Up @@ -73,8 +73,8 @@
flex-shrink: 0;
}
.header h1 { font-size: 0.85rem; font-weight: 500; color: var(--text-secondary); }
.header .status { font-size: 0.7rem; color: var(--success); display: flex; align-items: center; gap: 0.4rem; }
.header .status::before { content: ''; width: 6px; height: 6px; background: var(--success); border-radius: 50%; }
.header .status { font-size: 0.7rem; color: var(--success); display: flex; align-items: center; gap: 0.4rem; --status-color: var(--success); }
.header .status::before { content: ''; width: 6px; height: 6px; background: var(--status-color); border-radius: 50%; }

.main { flex: 1; overflow-y: auto; }
#claude-content { padding: 2rem; min-height: 100%; }
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36 changes: 30 additions & 6 deletions skills/brainstorming/scripts/helper.js
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Original file line number Diff line number Diff line change
@@ -1,25 +1,49 @@
(function() {
const WS_URL = 'ws://' + window.location.host;
const BACKOFF_INITIAL = 500;
const BACKOFF_MAX = 30000;

let ws = null;
let eventQueue = [];
let backoff = BACKOFF_INITIAL;
let reconnectTimer = null;

function setStatus(state) {
var el = document.querySelector('.header .status');
if (!el) return;
var labels = { connected: 'Connected', reconnecting: 'Reconnecting\u2026', disconnected: 'Disconnected' };
var colors = { connected: 'var(--success)', reconnecting: 'var(--warning)', disconnected: 'var(--error)' };
el.textContent = labels[state] || state;
el.style.color = colors[state] || '';
el.style.setProperty('--status-color', colors[state] || 'var(--success)');
}

function connect() {
if (reconnectTimer) { clearTimeout(reconnectTimer); reconnectTimer = null; }
setStatus('reconnecting');
ws = new WebSocket(WS_URL);

ws.onopen = () => {
eventQueue.forEach(e => ws.send(JSON.stringify(e)));
ws.onopen = function() {
backoff = BACKOFF_INITIAL;
setStatus('connected');
eventQueue.forEach(function(e) { ws.send(JSON.stringify(e)); });
eventQueue = [];
};

ws.onmessage = (msg) => {
const data = JSON.parse(msg.data);
ws.onmessage = function(msg) {
var data = JSON.parse(msg.data);
if (data.type === 'reload') {
window.location.reload();
}
};

ws.onclose = () => {
setTimeout(connect, 1000);
ws.onclose = function() {
ws = null;
setStatus('reconnecting');
reconnectTimer = setTimeout(function() {
backoff = Math.min(backoff * 2, BACKOFF_MAX);
connect();
}, backoff);
};
}

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