Improve this repository's automated test coverage with real code chan...

[kivo360]

Automated change by a Mozart background run.

Task

Improve this repository's automated test coverage with real code changes across multiple files. Steps: (1) explore the packages/ directory and pick 2 or 3 important source modules that currently lack dedicated unit tests (skip generated code and type-only files). (2) Study the existing test conventions (package.json scripts, existing test files) and write thorough unit tests for the modules you picked, covering edge cases and error paths. (3) If a new test exposes a genuine bug in a source module, fix the module. (4) Run the tests you added — scope the test command to the packages you touched, NOT the whole monorepo — and iterate until they pass. Hard requirements: at least 3 new test files spanning at least 2 different packages; do not reformat or refactor unrelated code; do not change README or docs.

Run e1909d90-a02e-4747-8f59-69abb1ef189d · session a7b47760-2115-4dc6-9062-1e8102ccbb73

[kivo360]

Reviewed and verified locally (checked out refs/pull/31/head).

Verdict: safe to merge — pure test coverage, no source changes.

• packages/sdk/test/history.test.ts (new, 221 lines) covers eventRowToStreamEvent/eventRowsToStreamEvents with real narrowing helpers rather than casts — token/reasoning/tool_call union shapes, null rows, ordering.
• Also adds acp-client/test/acp-crossws.test.ts + ws-transport.test.ts.
• Ran vitest run test/history.test.ts → 22/22 pass. No files under src/ touched, so zero regression surface.

Recommend merge.