Tether v0.5.0

Highlights

• Adds Mission Control for Herdr 0.7.5+: live event-driven agent status, focus, bounded output reads, semantic waits, and native Agents sidebar views for selected Tether groups.
• Adds exact metadata-bound group-member resolution and reviewed prompt-and-wait delivery to up to eight explicitly selected agents.
• Adds the independent, fail-closed prompt_agent capability. Observation and interactive-open grants never imply prompt authority.
• Replaces recurring SSH capture for exactly bound recognized agents with Herdr events and typed socket APIs while retaining bounded fallback capture for detached and non-agent workloads.
• Adds resilient remote observation through OpenSSH connection reuse, successful-observation latency, stale-state retention, reconnect resnapshots, and cycle-safe ssh_config Include alias discovery.

Safety and compatibility

• Herdr 0.7.3 and 0.7.4 retain ordinary workload management and read-only Observer behavior.
• State schema version remains 4; prompt_agent defaults to false and is omitted when false.
• Every prompt delivery revalidates exact membership, ownership, running state, pane binding, recognized occupant, capability, and settled state.
• Prompt text remains memory-only. Uncertain delivery is never retried automatically.
• Closing Mission Control or another Herdr view never stops the underlying Tether workload.

Verification

The tagged source passed release identity, Rust 1.88, Ubuntu 24.04, and macOS 14 release validation. Live-product smoke passed with Herdr 0.7.3 and Herdr 0.7.5 on both Ubuntu 24.04 and macOS 14.

See CHANGELOG.md for the complete change list.