Plugins

MCP server manager for DeepSeek Harness settings: add streamable-http or stdio servers, paste Postman-style headers, test connectivity, and toggle each tool so disabled ones never reach the model.

Agent-native API client for DeepSeek Harness: Postman-like debugging UI (request tree with context menus and full keyboard navigation, resizable sidebar, layered auto-generated header preview with per-item suppression and constant secret masking), six api_client_* agent tools sharing the same request core, redaction and audit chain with the human UI, Postman Collection v2.1 import with a migration report, environment variables with SecretRef indirection, and a fail-closed SSRF network policy.

Manage Postman cloud collections from dsh with 9 tools — list, browse, add one or many requests, edit and delete them, and export or overwrite a whole collection.

Upload files and folders straight into the conversation — images attach as real message blocks, text content is written into the composer draft, folders land by directory structure.