10 GitHub Repos to Save 90% Tokens
Open-source tools that slash your Claude token usage — proxies, MCP servers, knowledge graphs, and smarter prompts.
RTK (Rust Token Killer)
CLI proxy that filters terminal output before it hits your context
- •60-90% reduction on common dev commands
- •One binary, zero dependencies
- •Works with Claude Code, Cursor, Copilot
Context Mode
Sandboxes raw tool output into SQLite instead of dumping it into context
- •98% context reduction on Playwright, GitHub, logs
- •Only clean summaries enter your conversation
- •Works as Claude Code plugin
code-review-graph
Local knowledge graph that maps your codebase with Tree-sitter
- •Claude reads only what matters, not the entire repo
- •49x token reduction on large monorepos
- •6.8x on average reviews
Token Savior
MCP server that navigates code by symbols, not full files
- •97% reduction on code navigation
- •Persistent memory across sessions
- •69 tools, zero external deps
Caveman Claude
Makes Claude talk like a caveman to cut output tokens
- •65-75% output reduction
- •One-line install
- •Keeps full technical accuracy
claude-token-efficient
One CLAUDE.md file that keeps responses terse
- •Drop-in, no code changes
- •Reduces output verbosity on heavy workflows
- •Best for output-heavy sessions
token-optimizer-mcp
MCP server with caching, compression, and smart tool intelligence
- •95%+ token reduction through intelligent caching
- •Compresses repeated tool outputs
claude-token-optimizer
Reusable setup prompts for optimizing any project
- •90% token savings in 5 minutes
- •Reduces doc token usage from 11K to 1.3K
token-optimizer
Finds ghost tokens that silently eat your context
- •Survives compaction without losing quality
- •Fixes context quality decay
claude-context (by Zilliz)
Code search MCP that makes your entire codebase the context
- •~40% reduction with equivalent retrieval quality
- •Hybrid BM25 + dense vector search
How to Stack Them
You don't need all 10. Pick 2-3 based on your workflow:
Heavy terminal output?
RTK
Big codebase?
code-review-graph + Token Savior
Lots of MCP servers?
Context Mode
Quick fix?
Caveman + claude-token-efficient
Run /context in a fresh session
Most people are burning tokens without knowing it. See how much is gone before you even type a word — your pocket will thank you later.