2.1.78

Added StopFailure hook event for API errors, ${CLAUDE_PLUGIN_DATA} variable for plugin persistent state, and effort, maxTurns, disallowedTools frontmatter for plugin-shipped agents. Terminal notifications now reach outer terminal in tmux, and response text streams line-by-line. Fixed git operations in sandboxed Bash, conversation history truncation in large sessions with subagents, infinite loop in stop hooks, MCP server permission rules not blocking tools, sandbox filesystem permissions, protected directories writability, voice mode keybindings, --worktree flag not loading skills/hooks, git instructions suppression, Bash PATH issues, terminal color support, and various other fixes. Added ANTHROPIC_CUSTOM_MODEL_OPTION env var and fixed ANTHROPIC_BETAS being ignored with Haiku models. Improved memory usage and startup time for resuming large sessions. VSCode: Fixed login screen flash and rate limit error in model dropdown.