dsh-cross-session-agent

When several Agents work in parallel on the same repository, conflicts tend to go unnoticed: two Agents edit the same file, the second one redoes an investigation the first already completed, and a task stalls because no explicit handoff was ever issued. dsh-cross-session-agent closes that coordination gap with a structured peer-to-peer message channel, turning isolated parallel work into cooperative, conflict-aware progress.

The plugin contributes four core tools: discovering communicable peers in the same workspace, sending an explicit coordination message to a chosen peer, querying the transport receipt of that message (accepted, pending, claimed, discarded), and reading a bounded, field-whitelisted context projection of an authorized peer. It deliberately does not expose full session transcripts, does not allow peer messages to trigger automatic command execution, and keeps every boundary under the caller's explicit control.

Best suited to developers who drive multiple concurrent Agents on a single repository, especially for refactoring, migration, or code-review workflows where negotiating file ownership and task handoffs across Agents is essential. It does not replace user approval, does not inherit permissions, and simply lowers coordination cost from file locking and manual monitoring to a single verifiable message round.