Claude Code gets a multi-model strategy engine

What it does

CCG is a workflow engine that plugs into Claude Code via JavaScript hooks and slash commands. You type /ccg:go followed by a plain-language goal, and the engine classifies the task, selects one of ten strategies ranging from direct-fix to full-collaborate, then executes it using the appropriate models. For complex jobs, it persists state in a local task directory, enforces phase-gate checkpoints, and can spawn parallel Agent Teams with isolated file ownership.

The interesting bit

The engine fights context loss by injecting a <ccg-state> breadcrumb into every turn and re-hydrating the full project context whenever a session starts or gets compacted. It also auto-injects domain knowledge—security rules, caching patterns, RAG notes—when your prompt mentions relevant keywords, so sub-agents follow your conventions without being reminded.

Key highlights

• Strategy router — Ten predefined strategies match task complexity to model count; simple bugs stay local, complex features spin up dual-model parallel analysis and Agent Teams.
• Hook-based state tracking — Four zero-dependency JavaScript hooks install into Claude Code’s settings to silently inject task state, session context, and spec files at the right moments.
• Persistent task artifacts — Medium-and-up tasks generate a .ccg/tasks/ folder with task.json, plan.md, and review.md, making the workflow inspectable and resumable.
• Project spec injection — Coding standards stored in .ccg/spec/ are automatically fed into every codeagent-wrapper call and team spawn, keeping sub-agents aligned with your codebase conventions.
• Optional Codex-led mode — Flip the orchestrator so Codex writes code directly while delegating analysis and review to Gemini and Claude.

Caveats

• Requires Claude Code CLI; it is not a standalone tool but a heavy configuration layer on top of it.
• Multi-model features depend on optional external CLIs (Codex and Gemini), and Agent Teams need an experimental Claude Code environment flag enabled.
• Installation modifies ~/.claude/settings.json, which may not appeal if you prefer to keep your Claude Code setup pristine.

Verdict

Reach for CCG if you already live in Claude Code and want systematic multi-model collaboration for large or risky tasks. If you use a different editor or just need quick one-off answers, this is overkill.