docs(bf-1ppkk): add verification note

Document completed work:
- Created comprehensive xtask/README.md (515 lines)
- Documented all 20+ xtask commands and generators
- Included usage examples, fixture outputs, and when-to-run guidance
- Added development workflow and maintenance notes
- Verified tools/README.md already comprehensive from bf-2yhak

notes/bf-1ppkk.md

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+# bf-1ppkk: Document relocated generators with usage notes
+
+**Date:** 2026-07-08
+**Status:** ✅ **COMPLETE**
+
+## Task
+
+Add documentation for all relocated generators explaining their purpose and usage.
+
+## Work Completed
+
+### Created xtask/README.md
+
+Created comprehensive documentation for all xtask generators (515 lines):
+
+#### Documented xtask Commands
+1. **Schema Generation**
+   - `gen-schema` - Generate JSON Schema from Rust output types
+   - `validate-schema` - Validate checked-in schema matches generated
+
+2. **Documentation Generation**
+   - `gen-cli_reference` - Generate CLI reference from clap tree
+   - `rustdoc_coverage` - Calculate rustdoc coverage (target: 80%)
+   - `doc-profile <name>` - Generate profile README from YAML
+   - `doc-profiles` - Generate all profile READMEs
+
+3. **PDF Fixture Generators**
+   - `generate-tagged-fixtures` - PDF/UA and PDF/A tagged fixtures
+   - `generate-stress-pdfs` - Memory ceiling test fixtures (100-page, 10k-page)
+   - `generate-page-class-fixtures` - Page classification fixtures (Vector, Scanned, Hybrid, BrokenVector)
+   - `generate-brokenvector-fixtures` - OCR test fixtures (aligned/misaligned)
+   - `generate-sensitive-fixture` - TH-08 log audit test fixtures
+   - `gen-shape-db <fonts>` - Glyph shape database for Level 4 Unicode recovery
+
+4. **Testing & Quality**
+   - `memory-ceiling` - Enforce Tier-1 memory targets (512MB buffered, 256MB streaming, 1GB adversarial)
+
+5. **Binary-Specific Generators**
+   - `gen_encoding_fixtures` - Unicode recovery Levels 2-4 fixtures
+   - `gen_form_fixtures` - AcroForm and XFA fixtures
+   - `gen_scanned_fixtures` - Scanned OCR fixtures
+   - `gen_lzw_fixtures` - LZW compression fixtures
+   - `gen_unmapped_fixtures` - Unmapped Unicode fixtures
+   - `generate_document_json` - Schema validation fixtures
+   - `migrate_schema` - Schema migration tool
+
+### Documentation Structure
+
+Each generator section includes:
+- **Purpose:** What the generator does and why it exists
+- **Output:** Files and directories created
+- **When to run:** Guidance on when regeneration is needed
+- **Usage:** Command-line examples
+- **What it does:** Implementation details and process description
+
+### Additional Sections
+
+- **Running xtask Commands** - How to invoke xtask from workspace root
+- **Development Workflow** - Typical development cycle with commands
+- **Adding a New xtask Command** - Guide for extending xtask
+- **Related Documentation** - Links to fixtures structure, provenance, tools README
+- **Maintenance Notes** - Schema versioning, fixture idempotency, cross-platform notes
+- **Conventions** - Output paths, error handling, workspace root location
+
+## Acceptance Criteria
+
+- ✅ Each generator has clear documentation explaining its purpose
+- ✅ Usage examples provided for each generator
+- ✅ README.md exists in xtask/
+- ✅ Single commit: `chore(bf-1ppkk): document relocated generators with usage notes`
+
+## Verification
+
+### Commit Details
+
+**Commit:** 765a3639
+**Message:** chore(bf-1ppkk): document relocated generators with usage notes
+
+**Files Added:**
+- `xtask/README.md` (515 lines)
+
+**Files Modified:** None
+
+### Git Status
+
+```bash
+git status
+# On branch main
+# Your branch is ahead of 'origin/main' by 416 commits.
+```
+
+### Push Status
+
+```bash
+git push origin main
+# To https://git.ardenone.com/jedarden/pdftract.git
+#    47632cb8..765a3639  main -> main
+```
+
+### Documentation Coverage
+
+- **tools/README.md:** Already comprehensive (created by bf-2yhak on 2026-07-05)
+- **xtask/README.md:** Now comprehensive (created by this bead)
+
+Both directories now have complete documentation for all generators.
+
+## Related Documentation
+
+- `tools/README.md` - Python and shell generator scripts
+- `tests/fixtures/STRUCTURE.md` - Complete fixtures directory organization
+- `tests/fixtures/PROVENANCE.md` - Generation history for each fixture
+- `docs/schema/v1.0/pdftract.schema.json` - JSON Schema for extraction output
+- `docs/user-docs/src/cli-reference.md` - CLI reference documentation
+
+## Conclusion
+
+All relocated generators in `tools/` and `xtask/` are now fully documented with:
+- Clear purpose and motivation
+- Usage examples and command-line options
+- Fixture outputs and when-to-run guidance
+- Development workflow and maintenance notes
+
+The documentation provides a complete reference for developers working with pdftract's fixture generation and development tooling.