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Extends the ExecutionBackend trait with send_interrupt(&str) -> Result<()>
so the orchestrator can deliver SIGINT to in-flight Claude Code prompts
without terminating the underlying session or container.
- ExecutionBackend trait: new required async fn send_interrupt(session_id)
- TmuxManager: send_interrupt via `tmux send-keys -t {session} C-c`
with pre-flight session existence check for clear error messages
- TmuxBackend: delegates to TmuxManager via spawn_blocking
- DockerBackend: send_interrupt via bollard kill_container(SIGINT)
with 404-aware error handling for missing containers
- Unit tests for all three: non-existent session/container returns Err,
error messages are meaningful, and trait object-safety is preserved
Closes #404
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
5 tasks
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Summary
ExecutionBackendtrait with a new requiredasync fn send_interrupt(&self, session_id: &str) -> Result<()>methodTmuxBackendimplements viatmux send-keys -t {session} C-c(sends Ctrl-C / SIGINT to the foreground process without killing the session)DockerBackendimplements via bollard'skill_containerwithSIGINTsignal (docker kill --signal=SIGINT)Test plan
cargo build -p wrappassescargo clippy -p wrappassescargo test -p wrap— all new tests passCloses #404
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