Reduce the default .mcp.json to one connector (chrome-devtools) per the
new policy in docs/MCP-CONNECTOR-POLICY.md: a default earns its slot only
if it is universal AND MCP beats a CLI/API wrapped in a skill. June 2026
audit verdicts: github -> gh via github-ops skill; context7 -> REST via
documentation-lookup; exa -> harness-native search (+ exa-search skill);
memory -> native harness memory + instincts; playwright -> playwright CLI
skills (vendor moved agent flows off MCP); sequential-thinking -> native
extended thinking. All six remain opt-in in mcp-configs/mcp-servers.json.
Tests updated: plugin-manifest policy assertions + install-apply Cursor
expectations.
Co-authored-by: ECC Test <ecc@example.test>
