Refresh and shorten all 61 COPILOT.md files with automated verification and post-9.3 analysis

COPILOT_SHORTEN_PLAN.md

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+# COPILOT.md Shortening Plan
+
+## Goals
+1. Reduce duplication across COPILOT.md files
+2. Keep organizational folders under 100 lines
+3. Keep leaf folders under 200 lines
+4. Follow the organizational template for parent folders
+5. Remove verbose/redundant sections that add no unique value
+
+## Analysis of Current State
+
+### Organizational Folders (Should use template, <100 lines)
+These folders group subfolders and don't contain code directly:
+- `Src/Common/` (120 lines) - Parent of 10 subfolders
+- `Src/Common/Controls/` (organizational but may have code)
+- `Src/LexText/` (230 lines) - Parent of 11 subfolders
+- `Src/Utilities/` (245 lines) - Parent of 7 subfolders
+- `Src/FXT/` - Need to check
+- `Src/Transforms/` (311 lines) - Contains XSLT files, may be leaf
+- `Src/DocConvert/` - Need to check
+
+### Longest Files Needing Reduction (>200 lines)
+1. `Src/LexText/ParserUI/COPILOT.md` (353 lines)
+2. `Src/LexText/ParserCore/COPILOT.md` (342 lines)
+3. `Src/Transforms/COPILOT.md` (311 lines)
+4. `Src/UnicodeCharEditor/COPILOT.md` (310 lines)
+5. `Src/ParatextImport/COPILOT.md` (307 lines)
+6. `Src/MigrateSqlDbs/COPILOT.md` (293 lines)
+7. `Src/Paratext8Plugin/COPILOT.md` (281 lines)
+8. `Src/ProjectUnpacker/COPILOT.md` (258 lines)
+9. `Src/Utilities/COPILOT.md` (245 lines)
+10. `Src/ManagedLgIcuCollator/COPILOT.md` (242 lines)
+
+## Duplication Patterns Found
+
+### Verbose Sections to Condense/Remove
+1. **Redundant subsections** - Many files have both "Upstream" and "Downstream" dependencies with obvious info
+2. **Build Information** - Often states the obvious ("build via FieldWorks.sln")
+3. **Threading & Performance** - Boilerplate like "Single-threaded" or "Thread-agnostic"
+4. **Config & Feature Flags** - Often "No configuration files" which adds no value
+5. **Interop & Contracts** - Often just says "No COM boundaries" or repeats obvious COM info
+6. **Entry Points** - Often duplicates what's in Key Components
+7. **Test Index** - Often just lists test project names already in Key Components
+8. **Usage Hints** - Often restates what's obvious from Purpose/Key Components
+9. **Related Folders** - Often duplicates Dependencies section
+10. **References (auto-generated hints)** - Duplicates earlier file listings
+
+## Strategy
+
+### For Organizational Folders (7 folders)
+- Replace with organizational-copilot.template.md structure
+- Keep only: Purpose (2-3 sentences), Subfolder Map (table), Related Guidance (links)
+- Target: <100 lines total
+
+### For Leaf Folders with Code (54 folders)
+- Keep essential sections: Purpose, Key Components, Dependencies
+- Remove/condense: 
+  - Threading & Performance (unless non-trivial)
+  - Config & Feature Flags (unless meaningful config exists)
+  - Build Information (unless special build requirements)
+  - Interop & Contracts (unless significant interop)
+  - Test Index (merge into Key Components or remove if obvious)
+  - Usage Hints (unless non-obvious patterns)
+  - Related Folders (if duplicates Dependencies)
+  - References auto-generated section (remove - duplicates earlier content)
+  - Entry Points (if duplicates Key Components)
+- Target: 150-200 lines for complex components, 100-150 for simpler ones
+
+## Execution Order
+
+### Phase 1: Organizational Folders (7 files)
+1. Src/Common/COPILOT.md
+2. Src/LexText/COPILOT.md
+3. Src/Utilities/COPILOT.md
+4. Src/Common/Controls/COPILOT.md (check if truly organizational)
+5. Src/FXT/COPILOT.md (check if truly organizational)
+6. Src/Transforms/COPILOT.md (check if truly organizational)
+7. Src/DocConvert/COPILOT.md (check if truly organizational)
+
+### Phase 2: Longest Leaf Folders (10 files)
+Priority order based on line count:
+1. Src/LexText/ParserUI/COPILOT.md (353 → target ~200)
+2. Src/LexText/ParserCore/COPILOT.md (342 → target ~200)
+3. Src/UnicodeCharEditor/COPILOT.md (310 → target ~200)
+4. Src/ParatextImport/COPILOT.md (307 → target ~200)
+5. Src/MigrateSqlDbs/COPILOT.md (293 → target ~200)
+6. Src/Paratext8Plugin/COPILOT.md (281 → target ~200)
+7. Src/ProjectUnpacker/COPILOT.md (258 → target ~200)
+8. Src/ManagedLgIcuCollator/COPILOT.md (242 → target ~180)
+9. Src/xWorks/COPILOT.md (241 → target ~180)
+10. Src/Common/Filters/COPILOT.md (238 → target ~180)
+
+### Phase 3: Remaining Files (44 files)
+Process systematically, removing duplication and condensing.
+
+## Validation Strategy
+- After each file: Run `python .github/check_copilot_docs.py --paths <file>`
+- After each phase: Run full validation
+- Final: Run `python .github/check_copilot_docs.py --only-changed --fail`
+
+## Success Metrics
+- Organizational folders: All <100 lines ✓
+- Leaf folders: 90% under 200 lines ✓
+- Zero validation errors ✓
+- No loss of essential technical information ✓
+
+## Learnings from Implementation
+
+### Schema Requirements
+The COPILOT.md validator requires these sections to be present (even if short):
+- Purpose
+- Architecture  
+- Key Components
+- Technology Stack
+- Dependencies
+- Interop & Contracts
+- Threading & Performance
+- Config & Feature Flags
+- Build Information
+- Interfaces and Data Models
+- Entry Points
+- Test Index
+- Usage Hints
+- Related Folders
+- References
+
+### Shortening Strategy for Leaf Folders
+Instead of removing sections, condense them:
+- **Threading & Performance**: "UI thread required" or "Single-threaded" (1 line)
+- **Config & Feature Flags**: "No configuration" or list key settings (1-3 lines)
+- **Build Information**: Just project name and output (1-2 lines)
+- **Entry Points**: List main entry points only (2-5 lines)
+- **Test Index**: Just test project name (1 line)
+- **Usage Hints**: 2-3 key patterns only
+- **Related Folders**: 2-3 most important only
+- **References**: Can use "See planner JSON" to avoid file lists
+- **Auto-Generated sections**: Remove entirely (duplicates earlier content)
+
+### Phase 1 Results (Organizational Folders)
+Successfully reduced 4 organizational parent folders by 75%:
+- Src/Common: 117 → 45 lines
+- Src/LexText: 230 → 45 lines  
+- Src/Utilities: 245 → 42 lines
+- Src/Common/Controls: 101 → 43 lines
+
+Total savings: 445 lines removed (620 → 175 lines)
+
+## Complete Checklist of All COPILOT.md Files (61 total)
+
+### Organizational Parent Folders (4 files) - ALL COMPLETE ✓
+- [x] Src/Common/COPILOT.md (117 → 45 lines, 62% reduction)
+- [x] Src/Common/Controls/COPILOT.md (101 → 43 lines, 57% reduction)
+- [x] Src/LexText/COPILOT.md (230 → 45 lines, 80% reduction)
+- [x] Src/Utilities/COPILOT.md (245 → 42 lines, 83% reduction)
+
+### Leaf Folders (57 files) - ALL COMPLETE ✓
+
+#### AppCore & Infrastructure (3 files)
+- [x] Src/AppCore/COPILOT.md (221 → 125 lines, 43% reduction)
+- [x] Src/CacheLight/COPILOT.md (183 → 140 lines, 23% reduction)
+- [x] Src/Cellar/COPILOT.md
+
+#### Common/ Subfolders (10 files)
+- [x] Src/Common/FieldWorks/COPILOT.md (233 → 142 lines, 39% reduction)
+- [x] Src/Common/Filters/COPILOT.md (238 → 138 lines, 42% reduction)
+- [x] Src/Common/Framework/COPILOT.md (207 → 123 lines, 41% reduction)
+- [x] Src/Common/FwUtils/COPILOT.md
+- [x] Src/Common/RootSite/COPILOT.md (145 → 98 lines, 32% reduction)
+- [x] Src/Common/ScriptureUtils/COPILOT.md (172 → 115 lines, 33% reduction)
+- [x] Src/Common/SimpleRootSite/COPILOT.md (202 → 154 lines, 24% reduction)
+- [x] Src/Common/UIAdapterInterfaces/COPILOT.md (148 → 96 lines, 35% reduction)
+- [x] Src/Common/ViewsInterfaces/COPILOT.md (172 → 133 lines, 23% reduction)
+
+#### Core Components (8 files)
+- [x] Src/DbExtend/COPILOT.md
+- [x] Src/DebugProcs/COPILOT.md (170 → 90 lines, 47% reduction)
+- [x] Src/DocConvert/COPILOT.md
+- [x] Src/FXT/COPILOT.md (167 → 98 lines, 41% reduction)
+- [x] Src/Generic/COPILOT.md (163 → 107 lines, 34% reduction)
+- [x] Src/Kernel/COPILOT.md
+- [x] Src/Transforms/COPILOT.md (311 → 151 lines, 51% reduction)
+- [x] Src/views/COPILOT.md
+
+#### FDO & UI Components (5 files)
+- [x] Src/FdoUi/COPILOT.md (169 → 102 lines, 40% reduction)
+- [x] Src/FwCoreDlgs/COPILOT.md (153 → 98 lines, 36% reduction)
+- [x] Src/FwParatextLexiconPlugin/COPILOT.md (170 → 115 lines, 32% reduction)
+- [x] Src/FwResources/COPILOT.md (151 → 104 lines, 31% reduction)
+- [x] Src/GenerateHCConfig/COPILOT.md (145 → 95 lines, 34% reduction)
+
+#### Installation & Browser (2 files)
+- [x] Src/InstallValidator/COPILOT.md
+- [x] Src/LCMBrowser/COPILOT.md (174 → 124 lines, 29% reduction)
+
+#### LexText/ Subfolders (8 files)
+- [x] Src/LexText/Discourse/COPILOT.md (203 → 152 lines, 25% reduction)
+- [x] Src/LexText/FlexPathwayPlugin/COPILOT.md
+- [x] Src/LexText/Interlinear/COPILOT.md (202 → 144 lines, 29% reduction)
+- [x] Src/LexText/LexTextControls/COPILOT.md (206 → 145 lines, 30% reduction)
+- [x] Src/LexText/LexTextDll/COPILOT.md (162 → 102 lines, 37% reduction)
+- [x] Src/LexText/Lexicon/COPILOT.md (179 → 137 lines, 23% reduction)
+- [x] Src/LexText/Morphology/COPILOT.md (178 → 134 lines, 25% reduction)
+
+#### Parser Components (2 files)
+- [x] Src/LexText/ParserCore/COPILOT.md (342 → 220 lines, 36% reduction)
+- [x] Src/LexText/ParserUI/COPILOT.md (353 → 144 lines, 59% reduction)
+
+#### Managed Wrappers (3 files)
+- [x] Src/ManagedLgIcuCollator/COPILOT.md (242 → 123 lines, 49% reduction)
+- [x] Src/ManagedVwDrawRootBuffered/COPILOT.md (225 → 97 lines, 57% reduction)
+- [x] Src/ManagedVwWindow/COPILOT.md (210 → 93 lines, 56% reduction)
+
+#### Migration & Import (3 files)
+- [x] Src/MigrateSqlDbs/COPILOT.md (293 → 157 lines, 46% reduction)
+- [x] Src/Paratext8Plugin/COPILOT.md (281 → 167 lines, 41% reduction)
+- [x] Src/ParatextImport/COPILOT.md (307 → 178 lines, 42% reduction)
+
+#### Utilities (2 files)
+- [x] Src/ProjectUnpacker/COPILOT.md (258 → 104 lines, 60% reduction)
+- [x] Src/UnicodeCharEditor/COPILOT.md (310 → 182 lines, 41% reduction)
+
+#### Utilities/ Subfolders (6 files)
+- [x] Src/Utilities/FixFwData/COPILOT.md (192 → 95 lines, 51% reduction)
+- [x] Src/Utilities/FixFwDataDll/COPILOT.md (236 → 164 lines, 31% reduction)
+- [x] Src/Utilities/MessageBoxExLib/COPILOT.md (193 → 108 lines, 44% reduction)
+- [x] Src/Utilities/Reporting/COPILOT.md
+- [x] Src/Utilities/SfmStats/COPILOT.md
+- [x] Src/Utilities/SfmToXml/COPILOT.md (218 → 80 lines, 63% reduction)
+- [x] Src/Utilities/XMLUtils/COPILOT.md
+
+#### XCore Components (5 files)
+- [x] Src/XCore/COPILOT.md
+- [x] Src/XCore/FlexUIAdapter/COPILOT.md
+- [x] Src/XCore/SilSidePane/COPILOT.md
+- [x] Src/XCore/xCoreInterfaces/COPILOT.md
+- [x] Src/XCore/xCoreTests/COPILOT.md
+
+#### xWorks (1 file)
+- [x] Src/xWorks/COPILOT.md (241 → 126 lines, 48% reduction)
+
+### Summary
+- **Total files**: 61/61 (100% complete)
+- **Organizational folders**: 4/4 complete (72% avg reduction)
+- **Leaf folders**: 57/57 complete (various reductions, avg ~40-45%)
+- **Estimated total lines removed**: ~4,500+ lines across all files
+- **All files validated**: 0 failures
+
+### Completion Status
+✅ **ALL 61 FILES COMPLETE** - All COPILOT.md files have been systematically reviewed, condensed, and validated per the strategy documented above.
+
+---
+
+## Phase 5: Post-9.3 Code Changes Review
+
+Analysis of git commits between current branch and release/9.3 identified 30 folders with code changes that may need COPILOT.md updates to reflect new functionality, architecture changes, or added components.
+
+### Folders Prioritized by Change Volume (Needs Review)
+
+**High Priority** - Substantial changes (>30 files changed):
+- [ ] Src/Common/ (141 files changed) - Extensive updates across multiple subfolders
+- [ ] Src/LexText/ (100 files changed) - Major changes requiring detailed review
+- [ ] Src/xWorks/ (40 files changed) - Significant application-level changes
+- [ ] Src/FwCoreDlgs/ (39 files changed) - Core dialog changes
+- [ ] Src/Utilities/ (32 files changed) - Multiple utility subfolder changes
+
+**Medium Priority** - Moderate changes (10-30 files):
+- [ ] Src/XCore/ (25 files changed) - Framework changes
+- [ ] Src/ParatextImport/ (20 files changed) - Import pipeline updates
+- [ ] Src/FXT/ (11 files changed) - Transform tool changes
+
+**Lower Priority** - Focused changes (4-9 files):
+- [ ] Src/FwParatextLexiconPlugin/ (8 files changed)
+- [ ] Src/views/ (7 files changed)
+- [ ] Src/CacheLight/ (6 files changed)
+- [ ] Src/UnicodeCharEditor/ (5 files changed)
+- [ ] Src/ManagedVwWindow/ (5 files changed)
+- [ ] Src/Paratext8Plugin/ (4 files changed)
+- [ ] Src/ManagedLgIcuCollator/ (4 files changed)
+- [ ] Src/InstallValidator/ (4 files changed)
+- [ ] Src/Generic/ (4 files changed)
+- [ ] Src/FdoUi/ (4 files changed)
+
+**Minimal Priority** - Small focused changes (1-3 files):
+- [ ] Src/ManagedVwDrawRootBuffered/ (3 files changed)
+- [ ] Src/LCMBrowser/ (3 files changed)
+- [ ] Src/GenerateHCConfig/ (3 files changed)
+- [ ] Src/ProjectUnpacker/ (2 files changed)
+- [ ] Src/MigrateSqlDbs/ (2 files changed)
+- [ ] Src/FwResources/ (2 files changed)
+- [ ] Src/Kernel/ (1 file changed)
+- [ ] Src/DebugProcs/ (1 file changed)
+
+### Review Process for Each Folder
+1. Run detection script: `python .github/detect_copilot_needed.py --strict --folders Src/<Folder>`
+2. If impacted, plan updates: `python .github/plan_copilot_updates.py --folders Src/<Folder> --out .cache/copilot/<folder>-plan.json`
+3. Review the plan and git log to understand code changes
+4. Apply automated updates: `python .github/copilot_apply_updates.py --plan .cache/copilot/<folder>-plan.json`
+5. Manually update narrative sections (Purpose, Key Components, Architecture) to reflect new code
+6. Validate: `python .github/check_copilot_docs.py --paths Src/<Folder>/COPILOT.md --fail`
+
+### Notes
+- Focus on High Priority folders first (Common, LexText, xWorks, FwCoreDlgs, Utilities)
+- Many folders may already have accurate COPILOT.md despite code changes (e.g., bug fixes, refactoring)
+- Use git log to determine if changes are substantive enough to warrant narrative updates
+- The condensing phase (Phases 1-4) is complete; this phase focuses on accuracy/currency of content