tdd

## Project Context - git installed: !`which git 2>/dev/null || echo "not installed"` - current branch: !`git branch --show-current 2>/dev/null || echo unknown` - CLAUDE.md: !`find . -maxdepth 1 -name "CLAUDE.md" -type f` - project-discovery.md: !`find . -maxdepth 3 -name "project-discovery.md" -type f` - personal config directory: !`bash "${CLAUDE_PLUGIN_ROOT}/scripts/han-config-dir.sh" 2>/dev/null || echo "$HOME/.claude"` - project .han/config.md: !`cat .han/config.md 2>/dev/null || echo ""` As your first action, use the Read tool on `.han/config.md` inside the `personal config directory` path above. A read that returns no file is no personal configuration: continue silently. When that file or the `project .han/config.md` probe supplies content, apply it per [config-rule.md](../../references/config-rule.md), which governs precedence between the two files, relative-path resolution, and what to do with a file that reads but cannot be used. ## Constraints (read before anything else) This skill writes production and test code in your working tree. It is an execution skill, not a document generator. These constraints shape every step and override any instinct to move faster. - **The observed-failure gate is load-bearing.** No production-code change until a test has been run and observed to fail for the intended reason in this loop. A test that passes on first run is a stop-and-diagnose signal, not progress. This single rule is what separates real TDD from TDD-flavored co...