Redacted excerpt; full evidence withheld.

$ cd <guest-path> && pwd && ls -la && id -u && python3 --version && cat README.md 2>/dev/null | head -c 6000
exit: 0
completed handoff's result is durable and retrievable.
2. **No crossed inputs** — handoff IDs are content-addressed over intent; inputs cannot be swapped mid-flight.
3. **No untyped results** — completions are validated against a JSON Schema before acceptance.
4. **No silent budget overrun** — hard caps on steps, spend, wall-clock, and attempts. Exhausted work parks in a dead-letter queue: intact, visible, never silently dropped.
5. **No runner lock-in** — suspend → ship → resume on any host, any runner. The wire format is plain JSON-lines.

## Quickstart

```python
import dhp
[excerpt truncated]