') + ')', 'gi'); if (regex.test(text)) { found = true; var frag = document.createDocumentFragment(); var parts = text.split(regex); parts.forEach(function(part, i) { if (i % 2 === 0) { frag.appendChild(document.createTextNode(part)); } else { var span = document.createElement('span'); span.className = 'userscript-highlight'; span.textContent = part; frag.appendChild(span); } }); node.parentNode.replaceChild(frag, node); } }); } else if (node.nodeType === 1 && node.childNodes) { // element var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT']; if (!skipTags.includes(node.tagName)) { Array.from(node.childNodes).forEach(highlight); } } } highlight(document.body); // Re-highlight on dynamic content var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1 || node.nodeType === 3) highlight(node); }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ', 'i'); if (__m === '*' || __re.test(location.href)) { // Strip utm_, fbclid, gclid, etc. from all links on page (function() { var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content', 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid', 'ref', 'ref_src', 'source', 'medium', 'campaign']; function cleanUrl(url) { try { var u = new URL(url, window.location.origin); var changed = false; trackingParams.forEach(function(p) { if (u.searchParams.has(p)) { u.searchParams.delete(p); changed = true; } }); return changed ? u.toString() : url; } catch (e) { return url; } } function cleanLinks() { document.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } cleanLinks(); var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1) { if (node.tagName === 'A') cleanLinks(); node.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + ', 'i'); if (__m === '*' || __re.test(location.href)) { // Auto-enable theater mode on YouTube (function() { function tryTheater() { var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]'); if (btn && !btn.classList.contains('activated')) { btn.click(); } } // Try immediately tryTheater(); // Try after navigation (SPA) var lastUrl = location.href; setInterval(function() { if (location.href !== lastUrl) { lastUrl = location.href; setTimeout(tryTheater, 500); } }, 1000); // Also try on player load var observer = new MutationObserver(tryTheater); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ', 'i'); if (__m === '*' || __re.test(location.href)) { // Remove or un-stick sticky/fixed headers that block content (function() { function unstick() { document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) { if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') { el.style.position = 'static'; el.style.top = 'auto'; el.style.zIndex = 'auto'; } }); } unstick(); var observer = new MutationObserver(unstick); observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] }); })(); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); })(); [finding] The zero-quota payload channel silently drops the NEWEST timeline items once an issue outgrows the SSR first window — measured 3 of 5 comments, both 2026-08-30 dispatch comments missing · Issue #13373 · objectstack-ai/objectstack · GitHub
Skip to content

[finding] The zero-quota payload channel silently drops the NEWEST timeline items once an issue outgrows the SSR first window — measured 3 of 5 comments, both 2026-08-30 dispatch comments missing #13373

Open
Open
[finding] The zero-quota payload channel silently drops the NEWEST timeline items once an issue outgrows the SSR first window — measured 3 of 5 comments, both 2026-08-30 dispatch comments missing#13373
Assignees
zhuangjianguo
Labels
domain:skillspm:queuepriority:p1High: required for production / M2

Description

@claude
claude
bot
opened on Aug 30, 2026

Filed by the os-dev seat on issue 12637 (subagent under PM session session_01EXxTW8mvPBhoHxmyPZ63de, branch claude/issue-12637-rescue-liveness-fences). Dedup 2026-08-30: full single-page enumeration of open finding (9) and domain:skills (29) via REST, local grep for payload / timeline / preloadedQueries keywords — zero hits.

Measured (2026-08-30, issue page 12637)

references/platform-readings.md states the zero-quota payload channel carries the raw body plus ALL comments (「单卡页 /issues/N 内嵌 JSON 载原始 body + 全评论」). Measured against a card whose timeline had grown past the SSR first window:

  • REST GET /repos/objectstack-ai/objectstack/issues/12637/comments returned 5 comments (authoritative).
  • The embedded-JSON payload of the same card's page carried 3 — the two NEWEST (the 2026-08-30 escalation and PM claim comments, i.e. exactly the dispatch-critical ones) were absent.
  • In-band evidence of the gap: frontTimelineItems totalCount 21 with only 15 edges rendered; backTimelineItems totalCount 21 with 0 edges. Two fetches, one with cache-buster — same result, so not cache staleness.

The boundary and the hazard

The payload channel is complete only while the issue's timeline fits the SSR first window (~15 timeline items here — comments, label events and cross-references all count). Past that, the payload silently drops the newest items and still parses cleanly — the same failure class the corpus already names for list reads: silent incompleteness is worse than a zero, because a dev reads 3-of-5 comments as all-of-them and misses the newest grading or claim.

Suggested remedy (for the lane)

The gap is mechanically detectable from the payload itself: compare rendered edge counts against totalCount on both timeline halves; mismatch means the read is INCOMPLETE and the reader must fall back (repo-scoped REST probe, then the REST comments endpoint; or one targeted MCP read on a 403 seat). One sentence at the payload 档 entry closes it. Note: an R1 dispatch is in flight on the platform-readings surface — coordinate placement rather than double-editing.

Recording only — not a fix rider on issue 12637, which stays open and is otherwise unrelated.

Generated by Claude Code

Metadata

Metadata

Assignees

Labels

domain:skillspm:queuepriority:p1High: required for production / M2

Type

No type

Projects

No projects

Milestone

No milestone

Relationships

None yet

Development

No branches or pull requests

Issue actions