ITHome · Published 2026-09-10
DeepSeek Harness 0.1.5: upload files and preview AI results
Give AI an image or PDF, then inspect its files in the same window. Harness 0.1.5 also updates long sessions and subtask communication; Agent Teams remains an optional experimental plugin.
Upload files and inspect results in the sidebar
ITHome’s September 10 report says the Web UI accepts files including images and PDFs, which the model can read through file tools as needed. The right sidebar shows the workspace tree and previews Markdown, HTML, PDF, common code formats and images. Output files can be viewed there or opened in a system application.
Plugin authors can register global entries on the left and tabs or content pages on the right, with tabs, split views and full-screen previews. A built-in plugin management panel remains planned.
Model support, long sessions and collaboration
The report describes V4.1 Flash training and optimization for Harness’s standard, programmatic tool calling and minimal modes. With this model, system prompts can change while retaining the existing KV cache. Long-session loading, restoration, storage and folding also receive updates.
Parents and conversational subagents can exchange messages to add information or redirect work. Agent Teams adds a shared task list and member messages, but is an experimental plugin, off by default, requiring profile configuration and consuming additional tokens.
Important additions and corrections
Dates below mark changes to our coverage.
- Addition ·
Added file formats, sidebar previews, subtask messaging and conditions for the disabled-by-default experiment.
Sources and notes
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Added file formats, sidebar previews, subtask messaging and conditions for the disabled-by-default experiment. Original event, discovery and collection dates remain.
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