codexsaver-cost-router
CodexSaver Cost Router
Skill by ara.so — Codex Skills collection.
CodexSaver is an MCP tool that makes Codex cost-aware by routing low-risk development work (tests, docs, search, explanation) to cheaper worker LLMs while keeping Codex responsible for architecture, security, and final review. It supports DeepSeek by default with presets for OpenAI, Anthropic, Gemini, Qwen, Ollama, and LM Studio.
Core Concepts
CodexSaver operates in three modes:
- Preview Mode: Shows routing decision without executing
- V2 Bounded Work Packets: Single-task delegation with sandboxed patch application and verification
- V3 Orchestrated Specialists: Parallel readonly specialists (explainer, perf_reviewer) and mixed graphs for docs/tests/impl
Key principle: Codex handles judgment and risk, worker models handle volume and repetition.
Installation
Global MCP Tool Setup
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