v4.0.0 — Concurrent Sessions, Rate Limit Watcher, Usage Dashboard

What's New in v4.0.0

Competitive Moat Features

• ccm switch --isolated <account> — CLAUDE_CONFIG_DIR-based concurrent sessions (counters Cloak)
• ccm watch --threshold N [--auto] — rate limit monitoring with auto-switch (counters Van Damme-o-Matic)
• ccm usage dashboard — per-account token usage attribution (unique to CCM)
• ccm usage sessions — per-session cost & token breakdown with model-specific pricing
• ccm session summary — see what happened in each session (topic, tools, files)
• ccm session archive/restore — compress old sessions instead of deleting

Growth & Onboarding

• ccm setup — interactive first-run wizard
• ccm recover — credential state recovery for interrupted operations
• Statusline now writes rate limits to shared file for watcher module
• Statusline uses CLAUDE_CODE_USER_EMAIL env var (Claude Code v2.1.51+)

Removed (Native Claude Code Equivalents)

• ccm status → use ccm list or Claude Code's /status
• ccm interactive → use direct CLI commands
• ccm optimize → use Claude Code's /insights
• ccm launch → use --permission-mode flags

Stats

• 7 files changed, 1,895 insertions, 821 deletions
• Script grew from 6,077 to 7,023 lines

How CCM Compares

Feature	CCM	Cloak	aisw	Native CC
Multi-account	✅	✅	✅	❌
Concurrent sessions	✅	✅	❌	❌
Auto rate-limit switch	✅	❌	❌	❌
Per-account usage	✅	❌	❌	❌
Session cleanup	✅	❌	❌	Buggy
Health checks (13)	✅	❌	❌	MCP only
Zero dependencies	✅ (bash+jq)	❌ (Node)	❌ (Rust)	N/A

Full changelog: https://github.com/dr5hn/ccm/blob/main/CHANGELOG.md