upstream: official claude code updates 2026-05-21

[github-actions]

upstream changes detected

sources: anthropic/official-docs, shanraisshan/claude-code-best-practice
changes found: 3
files edited: 4
staleness flags: 4

what changed upstream

• [commit] chore(agent-collections): scheduled refresh (link)
• [commit] chore(agent-collections): scheduled refresh (link)
• [docs_change] Official Claude Code docs updated (link)

staleness flags

file	claim	reality	severity
docs/tips/fast-mode.md	fast mode doesn't change your cost on the max plan	fast mode reduces extended thinking budget, which may affect reasoning quality on complex tasks. cost impact depends on thinking token usage, which varies by task	medium
docs/cost.md	model pricing table references may 2026 anthropic pricing	official docs link provided but actual pricing snapshot removed from docs. users directed to official anthropic pricing page	low
docs/comparisons/README.md	tool versions and pricing verified as of may 13 2026 (claude code v2.1.140)	upstream changes detected from official claude code docs. verification timestamp may be stale	low
docs/tips/monitor.md	monitor requires v2.1.98+	docs note monitor is now stable as of v2.1.145. v2.1.98+ is still correct but stability claim should be prominent	low

proposed edits

• docs/cost.md: official docs were updated. removed outdated pricing table and emphasized external source as single source of truth
• docs/tips/fast-mode.md: clarify that fast mode affects reasoning quality, not just output speed
• docs/comparisons/README.md: update to latest verification date and version
• docs/tips/monitor.md: emphasize stability milestone and current tested version

review checklist

• staleness flags accurate?
• version numbers and pricing correct?
• proposed edits read naturally?

auto-generated by official-watcher