# Sample 10% of matching segments (random, requires --certainty; useful for quality-checking large sets)
./skraak calls classify --folder ./data --species Kiwi --certainty 90 --sample 10

`--sample <1-99>` randomly selects that percentage of the filtered segment list for review. Files and segments are presented in their original chronological order. `--sample 100` is a no-op. Requires `--certainty` to be set.

4. **Propagate verified classifications between filters:**

4. **Promote certainty=90 segments to 100:**
```bash
# After reviewing a folder and confirming labels are correct, bulk-promote to certainty=100.
# Filtering flags match calls classify exactly (minus --certainty and --sample).
./skraak calls push-certainty --folder ./data --species Kiwi
./skraak calls push-certainty --folder ./data --species Kiwi --night --lat -45.5 --lng 167.4
```
Sets matching labels from certainty=90 to 100 and updates the reviewer from `~/.skraak/config.json`. Outputs `{"segments_updated": N, "files_updated": M}`.
5. **Propagate verified classifications between filters:**