Expose region param on manage_browsers create and list

[tnsardesai]

Summary

POST /browsers accepts a region param (us-east | eu-west, fixed at create, plan-gated to Start-Up/Enterprise, defaults to us-east), and GET /browsers can filter by it. The pinned @onkernel/sdk@0.90.0 already types both, but the manage_browsers tool schema never exposed the field — so MCP clients couldn't select or filter by region.

Changes

• Add region to the manage_browsers input schema, described for both (create) and (list).
• Pass region through on create and as a filter on list.
• Test covering both pass-throughs.

Testing

bun test src/lib/mcp — 177 pass, 0 fail. bunx tsc --noEmit clean. bun run format:check flags only the pre-existing AGENTS.md formatting issue on main.

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Note

Low Risk
Thin schema and pass-through wiring to an already-typed SDK; no auth or data-model changes.

Overview
Exposes region (us-east | eu-west) on the manage_browsers MCP tool so clients can match the REST API: set region at session create (fixed afterward, plan-gated) and filter list by region.

The tool input schema documents both uses; create forwards region into browsers.create, and list passes it as a list filter. A unit test asserts both pass-throughs against a mocked Kernel client.

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Project	Deployment	Actions	Updated (UTC)
mcp	Ready	Preview	Aug 14, 2026 1:48am

[masnwilliams]

reviewed for maintainability, abstraction quality, boundary cleanliness, and structural complexity. no actionable findings.