Menu

1 / 2

The Hidden "Schema Tax" of MCP Tools: Dumping 32 Tool Schemas vs. On-Demand Tool Search (-92.7% Input Tokens)

DEV Community·tappers·10 days ago
#uCNVWNo5
#dev#tokens#tool#turn#schemas
Reading 0:00
15s threshold

💡 AI Labo Benchmark Series — Experiment E14 (Ranked #5 out of 41 Patterns)

This post is part of our empirical benchmark series testing AI coding agent harness patterns inside network-isolated Proxmox VMs against a hidden 20-case grading suite.

🚀 View All 41 Benchmark Results & Master Ranking

🛡️ Read How Our Proxmox & systemd Anti-Cheating Sandbox Works

Metadata & Experiment Identity

Experiment ID: E14 (Backlog Candidate C010 )

Run ID: e14-20261028-vm218-01

Sandbox Environment: Proxmox Isolated VM VM218 ( ai-e14-218 , 0 NICs, virtio-serial QGA relay, systemd UID separation)

Model: gemini-3.8-flash ( thinkingLevel: LOW )

Pattern Under Test: Claude Code ENABLE_TOOL_SEARCH=auto & Lazy MCP Tool Loading — "Upfront Monolithic Schema Dump (32 Tools) vs. Progressive On-Demand Tool Search"

1.…

Continue reading — create a free account

Join HashtagPLUS to read full articles, follow hashtags, vote, and join the conversation.