Claude Code's /simplify Stopped Fixing Code Yesterday
Claude Code 2.1.147 renamed /simplify to /code-review and dropped the auto-fix behavior. The new command reports bugs at chosen effort levels but no longer changes code.
9 posts
Claude Code 2.1.147 renamed /simplify to /code-review and dropped the auto-fix behavior. The new command reports bugs at chosen effort levels but no longer changes code.
Anthropic shipped MCP tunnels on May 19. Claude agents can call internal databases, ticketing systems, and on-prem APIs through one outbound connection — no inbound firewall rules required.
A server-side bug in Claude Code v2.1.100+ inflates every request by roughly 20K cache_creation tokens — about 40% overhead. Pin v2.1.98 until fixed.
Eighteen months after Anthropic released MCP, the ecosystem is wide enough that picking the wrong servers slows your agent down. Here is the practical short list — what to install, what to skip, and the trap most people fall into.
Anthropic is splitting Claude billing on June 15 — Agent SDK and ACP usage moves to a capped credit pool ($20/$100/$200) at full API rates.
Qwen3.6-27B running locally now scores within 10 points of frontier closed models on SWE-bench Verified. The benchmark table, lined up side by side.
Anthropic shipped Opus 4.7 on April 16, 2026, with a seven-point SWE-bench jump, the 1M context window now generally available with no premium, and a new task budget primitive for agent loops.
Anthropic released Opus 4.6 on February 5, 2026, with a 1M token context beta, agent teams, adaptive thinking, and developer effort controls — all at the same price as 4.5.
Anthropic's latest model achieves state-of-the-art results in agentic coding and brings meaningful improvements across reasoning, mathematics, and everyday tasks.