Summary

The check job (tsc type checking) is consistently failing on main due to vitest spy type inference errors.

Error

error TS2742: The inferred type of 'mockLoadConfig' cannot be named without a reference to
'.pnpm/@[email protected]/node_modules/@vitest/spy'. This is likely not portable.
A type annotation is necessary.

Affected files

• src/web/monitor-inbox.test-harness.ts
• src/auto-reply/reply.triggers.trigger-handling.test-harness.ts
• src/auto-reply/reply/agent-runner.heartbeat-typing.test-harness.ts
• src/auto-reply/reply/agent-runner.memory-flush.test-harness.ts

Evidence

• Main branch CI run #22023465143 — check job FAILURE
• Recently merged PRs all show the same failure: Fix: Force dashboard command to use localhost URL #16434, security: block apply_patch path traversal outside workspace #16405, Fix: Add type safety to models status command #16395
• The last successful main CI run was #22023532702, subsequent runs all fail

Likely cause

vi.fn() return values in test-harness files lack explicit type annotations. When tsc emits declaration files, it cannot resolve the inferred Mock<...> type without a direct reference to @vitest/spy.

Suggested fix

Add explicit type annotations to the mock variables in test-harness files, e.g.:

import type { Mock } from 'vitest';
const mockLoadConfig: Mock<(...args: any[]) => any> = vi.fn();

Or adjust the tsconfig to skip declaration emit for test files.