deepseek-harness-cli

dsh — command-line companion to deepseek-harness.

pip install deepseek-harness-cli
export DEEPSEEK_API_KEY=sk-...

dsh doctor                       # verify env + 1-token live call
dsh chat                         # interactive REPL with all guards on
dsh chat -r                      # enable thinking mode
dsh validate path/to/msgs.json   # offline contract audit (no API call)
dsh estimate path/to/msgs.json   # offline cache-hit estimate (no API call)
dsh probe probe_2 --n 3          # run a probe by name
dsh version

Why use this over a vanilla OpenAI client: the harness enforces all 10 contract rules from the DeepSeek V4 spec by default — saving you from the documented 400 reasoning_content, V8 Invalid string length crashes, parallel-tool-delta misalignment, and dual cache-field invisibility.

License: MIT.