kb-skills/.planning/phases/04-analysis-orchestration/04-02-SUMMARY.md

phase, plan, subsystem, tags, requires, provides, affects, tech-stack, key-files, key-decisions, patterns-established, requirements-completed, duration, completed

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	requirements-completed	duration	completed
04-analysis-orchestration	02	pipeline-architecture	processor download metadata content tdd pydantic	phase provides 01-foundation WorkflowStateManager, StepInput/StepOutput schemas phase provides 02-platform-skills BilibiliAdapter, ZhihuAdapter phase plan provides 04-analysis-orchestration 04-01 BaseProcessor, ParseProcessor	DownloadProcessor for unified metadata and content downloading DownloadInput/DownloadOutput schemas for download step	04-03 04-04 04-05	added patterns TDD workflow: RED (failing tests) -> GREEN (implementation) -> commit PlatformAdapter integration for multi-platform support Content type discrimination (video vs article)	created modified kb_pipeline/processors/download.py tests/test_processors/test_download.py kb_pipeline/schemas.py kb_pipeline/processors/__init__.py	Video content skipped in download step (handled by ASR in Phase 3) Text content (article, answer, zhuanlan) downloaded and saved as Markdown Metadata and content files follow naming convention: {platform}_{id}_{suffix} State recording on success/failure with summary info	DownloadProcessor uses PlatformAdapter for platform-specific operations Idempotency: skip step if already completed in workflow state	MNT-01	7min	2026-03-13

Phase 04 Plan 02: DownloadProcessor Summary

Unified DownloadProcessor for metadata extraction and content downloading across Bilibili and Zhihu platforms

Performance

• Duration: 7 min
• Started: 2026-03-13T15:17:17Z
• Completed: 2026-03-13T15:24:11Z
• Tasks: 3
• Files modified: 4

Accomplishments

• DownloadInput/DownloadOutput schemas with proper validation
• DownloadProcessor correctly fetching metadata from Bilibili and Zhihu adapters
• Content downloading for text-based content (article, answer, zhuanlan)
• Video content marked for ASR processing (not downloaded in this step)
• State recording on success/failure
• Module export from kb_pipeline.processors

Task Commits

Each task was committed atomically:

1. Task 1: Define Download Schemas - 9d5c3ff/1e01236 (test/feat)
2. Task 2: Create DownloadProcessor with metadata fetching - 567bd32/fc6fba7 (test/feat)
3. Task 3: Add content downloading and __init__.py export - ec268f7 (feat)

Plan metadata: pending (docs: complete plan)

Note: TDD tasks may have multiple commits (test -> feat -> refactor)

Files Created/Modified

• kb_pipeline/processors/download.py - DownloadProcessor implementation with metadata and content handling
• kb_pipeline/processors/__init__.py - Added DownloadProcessor to exports
• kb_pipeline/schemas.py - Added DownloadInput and DownloadOutput schemas
• tests/test_processors/test_download.py - Comprehensive tests (17 test cases)

Decisions Made

• Video content is not downloaded (handled by ASR in Phase 3)
• Text content is downloaded and saved as Markdown with YAML frontmatter
• File naming follows pattern: {platform}_{content_id}_{suffix}
• State recording uses summary format: title={title}, type={content_type}

Deviations from Plan

None - plan executed exactly as written.

Issues Encountered

• Test mock path needed adjustment: mock kb_pipeline.processors.base.get_settings because BaseProcessor.init calls get_settings()
• Zhihu adapter mock needed AsyncMock for fetch_content method

User Setup Required

None - no external service configuration required.

Next Phase Readiness

• DownloadProcessor provides metadata and content for downstream analysis
• Video content flow: DownloadProcessor (metadata) -> ASRProcessor (transcription)
• Article content flow: DownloadProcessor (metadata + content) -> AnalysisProcessor

---

Phase: 04-analysis-orchestration Completed: 2026-03-13

Self-Check: PASSED

All files verified:

• kb_pipeline/processors/download.py
• kb_pipeline/processors/__init__.py
• kb_pipeline/schemas.py
• tests/test_processors/test_download.py

All commits verified:

• 9d5c3ff: test(04-02): add failing tests for DownloadInput/DownloadOutput schemas
• 1e01236: feat(04-02): add DownloadInput and DownloadOutput schemas
• 567bd32: test(04-02): add failing tests for DownloadProcessor metadata fetching
• fc6fba7: feat(04-02): implement DownloadProcessor with metadata fetching
• ec268f7: feat(04-02): add content downloading and module export for DownloadProcessor