flownav: read-only MCP server turns n8n workflows into a typed graph to save agent context
omert-dev · reddit · 2026-11-10
A developer running 10 production n8n workflows built flownav, a read-only MCP server (in the official registry) that parses n8n workflows into a typed graph so agents can query instead of ingesting huge raw JSON. It ships 12 tools: navigation (scan/find/explain/neighbors/path/report), pre-change checks (affected lists every name-based reference including inside Code nodes; check finds dead references, unreachable nodes, missing error handling), cross-workflow relations (callers/calls/uses), and capped (6k chars) outline-then-grep reads with secret redaction. Design choices: ambiguous names return candidates rather than guessing, and it's strictly read-only. Honest limits: static analysis only, early 0.2.x, benchmarked on a 15-node example (2,126 tokens raw vs 42–152 per answer).
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