Dev wraps 37 deterministic checks as MCP tools so agents stop burning tokens
KuNaan314 · reddit · 2026-11-10
A Reddit developer shared QuassLabs, an MCP service that turns the small checks he kept asking Claude Code to do into plain functions behind one MCP endpoint — now 37 tools, only 2 of which call a model; the rest are linters, diffs and calculators that return identical answers for identical inputs.
Highlights: regexlint (catches regex blowups on long inputs), openapidiff, sqlmigrationlint (flags migrations that lock big tables), ticketlint, commithygiene, and mcptoollint, which checks your own MCP tool definitions for patterns that confuse models.
Pricing: free tools run without a key at a few calls/minute; each key gets 300 free credits/month, most paid calls cost 1 credit (a cent), failed calls are free, and an account tool lets your agent start sign-up. One-line setup for Claude Code.
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