Claude Code v2.1.90 adds /powerup command with gamified feature discovery

Claude Code v2.1.90 includes a new /powerup slash command that implements a gamified onboarding system. This feature helps users discover 10 specific capabilities that are often overlooked in the AI coding assistant.
Key Details
The /powerup command provides 10 unlockable power-ups, each designed to teach one feature that most Claude Code users miss during regular use. The system includes animated demonstrations that run directly in the terminal, showing users how each feature works in practice.
The source material references a GitHub repository containing documentation of these power-ups with screenshots. The repository is maintained at https://github.com/shanraisshan/claude-code-best-practice/blob/main/best-practice/claude-power-ups.md and appears to be part of a broader best practices collection for Claude Code.
This type of gamified onboarding is becoming more common in developer tools as a way to increase feature adoption without requiring users to read extensive documentation. By presenting features as unlockable achievements with immediate visual feedback, tools can encourage exploration of capabilities that might otherwise remain undiscovered.
For Claude Code specifically, which is an AI-powered coding assistant, this approach could help users discover more efficient ways to interact with the tool, potentially improving their coding workflow through better understanding of available commands and features.
📖 Read the full source: r/ClaudeAI
👀 See Also

Greg Kroah-Hartman's Clanker T1000: Local LLM on Framework Desktop with AMD Ryzen AI Max Fuzzing Linux Kernel Bugs
Greg KH's 'gregkh_clanker_t1000' uses a local LLM running on a Framework Desktop (AMD Ryzen AI Max+) to fuzz the Linux kernel, resulting in ~20 merged patches since April 7 fixing bugs in ALSA, HID, SMB, Nouveau, IO_uring, and more.
Opus 4.7's attention degradation: MRCR scores drop from 92% to 59% at 256k context
Opus 4.7 shows significant recall drop per MRCR v2 8-needle test: 91.9% to 59.2% at 256k context, and 78.3% to 32.2% at 1M. Anthropic is retiring MRCR in favor of Graphwalks, but the degradation matches user reports.

Claude Code v2.1.149: Usage Breakdown, Permission Fixes, and Keyboard Navigation
Claude Code v2.1.149 adds per-category usage breakdown, keyboard-scrollable diff view, GFM task list checkboxes, and fixes several permission bypasses and sandbox issues.

Claude Pro User Documents Chronic Interface and Workflow Issues
A long-term Claude Pro subscriber details five persistent problems: file destruction during corrections, lack of versioning, amnesia after context compaction, inconsistent decision-making, and ignored user preferences. The user reports these issues occur despite explicit instructions in Claude's preferences section.