README section with a before/after command and the limits stated plainly (link not yet tried in a
real run, agent adherence not measured, --prepass-payload rejects okf-consumption/2). Adds
examples/okf-server.mcp.json, pinned by a test that loads it through load_mcp_config; the
published-surface pin moves 516 -> 518 for the two new files.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
