Per-model custom request headers for DeepSeek Harness: define named header profiles in Settings → Plugins → Plugin configuration, pick one per model in the provider's model catalog, and every call to that model carries those headers.
Observational memory for DeepSeek Harness: background observers distill session work into observations and durable reflections, so long sessions survive compaction with their decisions intact.
Cordis plugin bridging the dsh-vscode extension to native DSH services (workspace grouping, session titles, archive, agent presets, permission presets) over a token-authenticated local JSON-RPC socket.
