Desktop MCP settings were using the process startup directory for local
project config and treated new custom servers as user-global. The desktop
API now carries the active cwd into local MCP reads, writes, and enablement
state, and the settings page exposes the same local/project/user scopes that
the CLI supports.
Constraint: Claude Code MCP scope semantics are local, project, and user.
Constraint: Desktop sessions can switch projects inside one long-lived server process.
Rejected: Only clear getProjectPathForConfig cache | still leaves request-scoped desktop API calls tied to getOriginalCwd
Confidence: high
Scope-risk: moderate
Directive: Do not route MCP local config or disabledMcpServers through ambient original cwd in desktop APIs.
Tested: bun test src/server/__tests__/mcp.test.ts
Tested: cd desktop && bun run test -- mcpSettings.test.tsx
Tested: bun run check:server
Tested: bun run check:desktop
Not-tested: Live provider smoke; the change is config/control-channel scoped.
