Claude Code v2.1.143 — plugin deps, PowerShell defaults, worktree escape hatches, stop-hook circuit breaker

Source: CHANGELOG.md — v2.1.143.

Plugin dependency enforcement. claude plugin disable now refuses if another enabled plugin depends on the target, and prints a copy-pasteable disable chain. claude plugin enable force-enables transitive dependencies automatically. End of silent breakage when plugins depend on each other.

PowerShell on by default for Bedrock / Vertex / Foundry on Windows. The PowerShell tool is now enabled by default for cloud-provider variants on Windows, and runs with -ExecutionPolicy Bypass so scripts don't trip on the default Restricted policy. Opt out with CLAUDE_CODE_USE_POWERSHELL_TOOL=0; keep the policy restrictive with CLAUDE_CODE_POWERSHELL_RESPECT_EXECUTION_POLICY=1.

worktree.bgIsolation: "none" tells background sessions to skip the per-session git worktree dance and edit the working copy directly. For repos where worktrees are impractical — submodules, mixed VCS, build artifacts that don't survive relative-path moves. Trade-off: parallel sessions can now stomp each other's edits.

Worktree cleanup no longer falls back to rm -rf. When git worktree remove fails — usually gitignored files, in-progress edits, stuck index locks — Claude Code used to rm -rf the directory. Now it stops and surfaces the error. No more silent loss of WIP work.

Stop-hook circuit breaker. Stop hooks that keep blocking the end of a turn now get cut off after 8 consecutive blocks, with a warning. Tune the threshold with CLAUDE_CODE_STOP_HOOK_BLOCK_CAP. Prevents a stuck hook from pinning the session forever.

/bg and detach preserve session config. Backgrounding a session — via /bg or ←-detach from agent view — now preserves --mcp-config, --settings, --add-dir, --plugin-dir, --strict-mcp-config, --fallback-model, and --allow-dangerously-skip-permissions. Background sessions launched from claude agents also now honor permissions.defaultMode from settings.json instead of being force-overridden to auto mode.

Not in this episode: 29 bug fixes including the macOS Documents/Desktop/Downloads permission error, corrupted credentials hanging the CLI, IDE file-reference leak into warm spares, Windows ← keystroke hangs, plus follow-up clarifications to features covered in episode 28.

• (00:00) - Plugin dependency enforcement
• (01:02) - PowerShell defaults on Windows
• (01:55) - worktree.bgIsolation escape hatch
• (02:34) - Worktree cleanup: no more rm -rf
• (03:22) - Stop-hook circuit breaker
• (03:52) - /bg preserves session config