◉CLAUDE LABJP
●2.1.302 — Fork subagents are now on by default in claude -p, the Agent SDK and the desktop app. Turn them off with CLAUDE_CODE_FORK_SUBAGENT=0 (10/16)●2.1.301 — Unattended retries now stop on their own when a usage limit is hit instead of waiting (10/15). Latest is 2.1.304 (10/19)●SONNET 4.5 — Retires on the Claude API on 11/30, 40 days left. Migrate to Sonnet 5.5●WINDOWS — Reports say hooks break silently only on Japanese-locale Windows; check the character encoding first●FAST MODE — Opus 5.5 fast mode is out of research preview and no longer needs the beta header (10/15)●NEW — I Put a Ten-Line Promise File at the To…●2.1.302 — Fork subagents are now on by default in claude -p, the Agent SDK and the desktop app. Turn them off with CLAUDE_CODE_FORK_SUBAGENT=0 (10/16)●2.1.301 — Unattended retries now stop on their own when a usage limit is hit instead of waiting (10/15). Latest is 2.1.304 (10/19)●SONNET 4.5 — Retires on the Claude API on 11/30, 40 days left. Migrate to Sonnet 5.5●WINDOWS — Reports say hooks break silently only on Japanese-locale Windows; check the character encoding first●FAST MODE — Opus 5.5 fast mode is out of research preview and no longer needs the beta header (10/15)●NEW — I Put a Ten-Line Promise File at the To…
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Context Management

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Claude API2indie development1streaming1session management1cost optimization1Agent SDK1MCP1Claude Code1
⬡ API & SDK/2026-05-14Advanced

6 Traps I Hit Building In-App AI Chat with Claude API — A Record of Getting to Production

Six real design mistakes I encountered shipping Claude API in-app chat to production — covering context management, streaming error detection, guardrails, session persistence, model versioning, and cost monitoring. Includes working TypeScript code.

⬡ API & SDK/2026-06-30Advanced

When a Tool Result Is Too Big and Melts Your Context Window: Designing Cursor-Based Pagination

When a list tool returns hundreds of rows at once, an agent's context can collapse in a single call. Here is a cursor-based pagination design that keeps tool output small and protects your token budget, with working code.

⟐ Claude Code/2026-04-21Advanced

Keeping Claude Code Accurate Through Long Sessions: Signals of Context Decay and What to Do About Them

After a few hours in the same Claude Code session, output quality can quietly slip. This is a practical field guide to spotting the early signals, choosing where to end a session, and keeping a long workflow reliable.