Support WebMCP awaiting-submission results

[rgarcia]

Summary

• Upgrade @onkernel/sdk from 0.101.0 to 0.104.0, including the lockfile, so the invocation result type includes awaiting_submission.
• Teach the WebMCP and Playwright tool descriptions to distinguish populated forms from completed submissions: inspect the correct tab/frame, obtain any required confirmation, submit separately, and verify the page without invoking again.
• Cover all four invocation statuses through MCP, preserving output unchanged and making exactly one SDK call with retries disabled. The WebMCP handler remains unchanged.

SDK compatibility

The newer SDK also makes additional vault operation inputs required. The existing vault tool cannot supply them. Reject advertised fill and prepare_checkout operations before POST rather than casting away the type error or sending an incomplete request. The same input-requirement check excludes those operations from invocation hints while preserving the API's advertised operation data and explaining the API-only path. Tests cover both rejections, hint filtering, and data preservation; existing parameterless-operation behavior is preserved. This does not add new vault features.

Validation

• bun test: 528 passed, 0 failed.
• bunx tsc --noEmit: passed.
• Prettier checks on changed source files and package.json: passed.
• bun run build: passed with dummy OAuth client IDs and a dummy Clerk publishable key. Without those build-time settings, page-data collection fails because KERNEL_CLI_PROD_CLIENT_ID is unset.

Tests use SDK fixtures; no live browser invocation or payment operation was performed.

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated
mcp	Ready	Preview	Sep 15, 2026 7:18pm UTC

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	@​onkernel/​sdk@​0.101.0 ⏵ 0.104.0	+1		+1	+1

View full report

[cursor]

Cursor Bugbot has reviewed your changes using default effort and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit 9242161. Configure here.}