PRISMAG
Per-block model routing CLI that sends tagged prompt sections to different LLMs for optimized AI coding workflows.
PRISMAG
What is PRISMAG?
PRISMAG vs Similar AI Tools
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How to use PRISMAG?
- 1Install via Go: go install github.com/rufus-SD/prismag@latest or clone and build.
- 2Run 'prismag setup' for guided onboarding (API keys, model discovery, registry.yaml).
- 3Run 'prismag init' to wire routing into your project (auto-detects editor).
- 4Execute a tagged prompt: prismag run "@@opus: design auth flow @@composer: implement it".
- 5Use 'prismag' with no arguments for interactive REPL session.
PRISMAG Key Features
- Route prompt blocks to different models with @@ tags (e.g., @@opus, @@composer)
- Deterministic block chaining: output of block N feeds into block N+1 context
- Parallel execution mode for independent blocks (--parallel)
- Pluggable context store (in-memory or maind) with cross-session memory
- CLI/REPL and IDE integration via subagents or prismag run
- Local model support via Ollama/vLLM (no API key needed)
- Exec mode with permission-gated tool loop for file/shell actions
- Live model ID resolution from provider APIs (self-healing renames)
PRISMAG Use Cases
- Assign deep reasoning tasks (architecture, security) to a powerful model and implementation to a fast model in a single prompt
- Chain outputs: plan with one model, then implement with another, then summarize with a cheap model
- Use local private models for sensitive or offline code generation
- Integrate multi-model routing into Cursor, Claude Code, Windsurf, and other IDEs
PRISMAG Pricing & Free Credits
PRISMAG currently operates on a Free model.
This tool is completely free to use
PRISMAG Pros & Cons
Pros
- Eliminates need to switch between multiple chats or change IDE model picker
- Supports local models for privacy and zero cost
- Works with most major IDEs and AI coding tools
- Deterministic routing with live model ID resolution
- Chained and parallel execution modes
Cons
- Requires manual per-block tagging in prompts
- API keys needed for cloud models (though local models work without)
- Exec mode tool loop still limited to safe actions by default
What is PRISMAG best for?
- Developers who want to use different AI models for different parts of a coding task
- Teams that need to combine planning, implementation, and review in one workflow
- Users who prefer local models for sensitive code and cloud models for heavy reasoning
- Power users of AI coding assistants who want more control over model routing
PRISMAG FAQ
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