fix: resolve first-run workflow failures (2.35.0)

- fix(lfg, slfg): make ralph-loop step optional — graceful fallback
  when ralph-wiggum skill not installed (#154); add explicit
  "do not stop" instruction across all pipeline steps (#134)
- fix(plan): add mandatory "Write Plan File" step with explicit Write
  tool instructions before post-generation options — plan always
  written to disk even in LFG/SLFG pipeline context (#155, #134)
- fix(plan): use full qualified agent name for spec-flow-analyzer
  to prevent Claude prepending wrong 'workflows:' prefix (#193)

Closes #154, #155, #193
Contributing to #134

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

plugins/compound-engineering/CHANGELOG.md

@@ -5,6 +5,16 @@ 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).
 
+## [2.35.0] - 2026-02-17
+
+### Fixed
+
+- **`/lfg` and `/slfg` first-run failures** — Made ralph-loop step optional with graceful fallback when `ralph-wiggum` skill is not installed (#154). Added explicit "do not stop" instruction across all steps (#134).
+- **`/workflows:plan` not writing file in pipeline** — Added mandatory "Write Plan File" step with explicit Write tool instructions before Post-Generation Options. The file is now always written to disk before any interactive prompts (#155). Also adds pipeline-mode note to skip AskUserQuestion calls when invoked from LFG/SLFG (#134).
+- **Agent namespace typo in `/workflows:plan`** — `Task spec-flow-analyzer(...)` now uses the full qualified name `Task compound-engineering:workflow:spec-flow-analyzer(...)` to prevent Claude from prepending the wrong `workflows:` prefix (#193).
+
+---
+
 ## [2.34.0] - 2026-02-14
 
 ### Added