CLAUDE LABJP
OUTPUT — v2.1.237 ships a built-in Concise output style that leads with results and skips preamble, without cutting any corners on the work itself. Pick it under Output style in /configCACHE — v2.1.237 fixes prompt caching for sessions running through an LLM gateway or a custom base URL. If you work behind a company proxy, your effective per-token cost just changedCONFIG — v2.1.236 adds ANTHROPIC_DEFAULT_MODEL to set which model new sessions start on. A /model pick still overrides it and persists across restarts, unlike ANTHROPIC_MODELNOTIFY — With notify_when_idle in v2.1.236, one Claude Code session can ask another on the same machine for a single heads-up when it next goes idle. Opt-in, one-shot, no pollingSECURITY — On macOS, wildcard read-deny rules now win inside allowed read regions, cover the contents of matched directories, and can no longer be sidestepped by renaming the filePRICING — Claude Sonnet 5's introductory $2 per million input and $10 output ends August 31, with standard $3 and $15 pricing starting September 1. Ten days to goOUTPUT — v2.1.237 ships a built-in Concise output style that leads with results and skips preamble, without cutting any corners on the work itself. Pick it under Output style in /configCACHE — v2.1.237 fixes prompt caching for sessions running through an LLM gateway or a custom base URL. If you work behind a company proxy, your effective per-token cost just changedCONFIG — v2.1.236 adds ANTHROPIC_DEFAULT_MODEL to set which model new sessions start on. A /model pick still overrides it and persists across restarts, unlike ANTHROPIC_MODELNOTIFY — With notify_when_idle in v2.1.236, one Claude Code session can ask another on the same machine for a single heads-up when it next goes idle. Opt-in, one-shot, no pollingSECURITY — On macOS, wildcard read-deny rules now win inside allowed read regions, cover the contents of matched directories, and can no longer be sidestepped by renaming the filePRICING — Claude Sonnet 5's introductory $2 per million input and $10 output ends August 31, with standard $3 and $15 pricing starting September 1. Ten days to go
TAG

Headers

1 articles
Back to all tags
Related:
Claude API1Rate limit14291Throttling1Cost attribution1Production1
API & SDK/2026-07-07Advanced

When Claude API Suddenly Starts Returning 429 in Production — Field Notes on Measuring Rate-Limit Headroom from Headers and Throttling Before You Run Dry

Scrambling to add retries after a 429 is always a step behind. Claude API writes how much you have left into every response header. These are field notes on measuring that headroom continuously and throttling yourself before it runs out.