Summarize Signal

Workflow

Per candidate item:
- [ ] Step 1: WebFetch the URL; ask: "Extract the core argument in 300 words. What mechanism does this teach? Is there a diagram/analogy? Is this a capability announcement?"
- [ ] Step 2: Classify signal_type: mechanism | empirical | tool | opinion | announcement | benchmark
- [ ] Step 3: Classify intuition_density: high (diagram + analogy + worked example) | medium | low (prose-only announcement)
- [ ] Step 4: Compose one-line summary framed as "teaches that X" or "shows that Y"
- [ ] Step 5: Voice-check the summary against voice-profile don'ts

Signal type taxonomy