release: v2.35.1 — add system-wide test check to /workflows:work

- Add System-Wide Test Check to work command task execution loop (5 questions: callbacks, real chain coverage, orphaned state, API parity, error alignment)
- Add integration test guidance to Test Continuously section
- Add System-Wide Impact sections to plan templates (MORE + A LOT)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

plugins/compound-engineering/CHANGELOG.md

@@ -5,6 +5,15 @@ All notable changes to the compound-engineering plugin will be documented in thi
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.35.1] - 2026-02-18
+
+### Changed
+
+- **`/workflows:work` system-wide test check** — Added "System-Wide Test Check" to the task execution loop. Before marking a task done, forces five questions: what callbacks/middleware fire when this runs? Do tests exercise the real chain or just mocked isolation? Can failure leave orphaned state? What other interfaces need the same change? Do error strategies align across layers? Includes skip criteria for leaf-node changes. Also added integration test guidance to the "Test Continuously" section.
+- **`/workflows:plan` system-wide impact templates** — Added "System-Wide Impact" section to MORE and A LOT plan templates (interaction graph, error propagation, state lifecycle, API surface parity, integration test scenarios) as lightweight prompts to flag risks during planning.
+
+---
+
 ## [2.35.0] - 2026-02-17
 
 ### Fixed