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Cline configures MCP servers in cline_mcp_settings.json — Cursor-style mcpServers record — and hot-reloads the file (a watcher picks up external writes, no restart). The binary comes first: brew install supernovae-st/tap/nika (other paths). Add the nika entry: 
{ "mcpServers": { "nika": { "command": "nika", "args": ["mcp"] } } }

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Where the file lives

Cline’s settings live in two generations of home:
  • Today’s extension keeps settings/cline_mcp_settings.json under the host IDE’s globalStorage — the dir name saoudrizwan.claude-dev is stable across VS Code · Cursor · Windsurf · VSCodium · Insiders. On macOS: ~/Library/Application Support/<Host>/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json (elsewhere: ~/.config/<Host>/User/globalStorage/…). Cline’s own MCP Servers panel edits the same file.
  • The stable home — ~/.cline/data/settings/cline_mcp_settings.json — is what the Cline CLI reads today and where the extension migrates next.
nika wire cline ships in the next release and resolves this for you: a host IDE’s existing extension dir wins (the live, hot-reloaded file); none existing falls back to the stable home. Idempotent, unrelated servers preserved.

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Verify

Cline’s MCP Servers view lists nika with the eight nika_* tools (the oracle’s contract). The repo side comes from nika init (AGENTS.md, rules). Then prove the loop end-to-end: integrate in 10 minutes.