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+---
+name: "Test Coverage: io/shell.rs to 95%"
+---
+
+# Story 105: Test Coverage: io/shell.rs to 95%
+
+## User Story
+
+As a developer, I want io/shell.rs to have at least 95% test coverage, so that regressions in shell execution edge cases are caught early.
+
+## Acceptance Criteria
+
+- [ ] server/src/io/shell.rs reaches at least 95% line coverage (currently 84%, 15 lines missed)
+- [ ] cargo clippy passes with no warnings
+- [ ] cargo test passes with all tests green
+- [ ] No changes to production code, only test code added
+
+## Out of Scope
+
+- TBD