Show HN: MCP server gives your agent a budget (save tokens, get smarter results)

Category: devtools

Tags: ai-agents, cost-optimization, mcp-server

Score: 7.0/10 (Innovation: 7, Technical: 6, Documentation: 8, Utility: 7)

L6e is an MCP server that adds cost-aware budgeting to AI coding agents (Cursor, Claude Code, Windsurf) by intercepting operations, checking token estimates against a budget, and providing halt signals. It's interesting because it addresses the real-world problem of unpredictable LLM costs in agent workflows without requiring proxy servers or SDK changes, and it learns from actual billing data to improve estimates.

Target audience: backend devs, devops

Repository: https://l6e.ai · Python · MIT · 4 stars

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