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- Add --use-opencode-tools flag to main.py - Default: local tool server mode (~125 tokens, saves ~27k tokens) - Optional: opencode tools mode (~27k tokens, full tool definitions) - Create .opencodeignore to exclude large docs from context - Update design doc with token bloat analysis This allows users to choose between: - Local tool server: Minimal tool instructions, saves 27k tokens - Opencode tools: Full tool definitions, more robust but expensive