Cassian – Knowledge Harvester
Cassian – Knowledge Harvester
Cassian is a Claude Code skill that turns your AI assistant into an intelligence officer for knowledge harvesting. It scrapes web sources, stores content as structured Markdown, maintains a searchable manifest, and generates weekly briefings with trend analysis.
What Cassian Does
- Multi-source scraping: TSIA research, Microsoft Learn, MVP blogs, LinkedIn, and ad-hoc URLs
- Structured storage: Every scraped page becomes Markdown with YAML frontmatter on NAS
- SQLite manifest: Content indexing with title, author, source, tags, word count
- Weekly briefings: Synthesized summaries of harvested content with key themes and actionable insights
- Trend analysis: Cross-source pattern identification and rising topic detection
- Queue management: Chrome extension relay for clipping URLs, dry-run support, error recovery
- Deployment pipeline: Engine code deployment from dev to NAS
Installation
- Copy the
cassian/folder to~/.claude/skills/cassian/ - Configure NAS connectivity and credentials
- Set up the Python engine with virtual environment
- (Optional) Install the Chrome extension for URL clipping
Usage
Once installed, invoke with /cassian followed by a command:
| Command | Description |
|---|---|
run |
Full scrape cycle |
queue add URL |
Add URL to scrape queue |
queue list |
Show pending items |
status |
NAS connectivity, last runs, queue depth |
briefing |
Generate weekly knowledge briefing |
trends |
Analyze content for emerging themes |
search QUERY |
Search manifest by keyword/tag |
deploy |
Deploy engine code to NAS |
Requirements
- NAS with SMB shares for content storage
- Python 3.8+ with virtual environment
- Network credentials in OS credential manager
Files
SKILL.md– The skill definition loaded by Claude Code