Carbon felt
| Property | Value |
|---|---|
| Porosity | 0.93 |
| Tortuosity | 1.8 |
| Specific surface | 30,000m²/m³ |
| Permeability | 3.00e-10m² |
| Thickness | 5mm |
Comment on the exact value, not the page
Turn on comment mode, click any value or card, and say what is wrong or what should change. The comment is pinned to that element and carries the entity behind it, so Claude knows which electrode, which property and which number you mean.
Mockup: comments stay in this browser and the replies are canned. Nothing is sent anywhere.
Electrode microstructure
Carbon paper
| Property | Value |
|---|---|
| Porosity | 0.78 |
| Tortuosity | 1.8 |
| Specific surface | 120,000m²/m³ |
| Permeability | 5.00e-12m² |
| Thickness | 190µm |
Carbon granules (GAC bed)
| Property | Value |
|---|---|
| Porosity | 0.45 |
| Tortuosity | 1.5 |
| Specific surface | 1,800m²/m³ |
| Permeability | 7.00e-9m² |
| Thickness | 50mm |
How it works
Each value on the page declares its data entity: which record, which field, the value shown, its source.
In comment mode a click reads that declaration, never the screen text, and opens a comment pinned to the element.
The comment and its entity context go to Claude, who answers about that exact value and proposes a fix with provenance.
What shipping it would take
Extend the existing page comments with anchor columns (entity kind, entity id, field, value at the time of the comment), so a review queue can filter by entity, then let pages opt in by marking their values.
Press C to comment, Esc to leave