v0.3.0 — MorpheOS Code

MorpheOS Code — Captain Zeus at the helm

The interactive chat agent graduates to a first-class TUI with personality, safety, and polish.

What's new in v0.3.0

Chat TUI

• Full-screen Ink TUI with streaming, tool execution display, and side panel
• Captain Zeus personality — British ship captain with dry wit and ship metaphors
• 8 tools: read_file, write_file, edit_file, search_content, search_files, run_command, list_directory, delete_file

Keyboard settings panel (/settings)

• Arrow-key navigable configuration overlay
• Model toggle (Flash ↔ Pro) with ←→ keys
• Thinking toggle (ON/OFF)

Destructive command safety gate

• 14 command patterns permanently blocked: rm -rf, sudo, curl-to-shell, force push, chmod 777, eval injection, kill -9, and more
• 122 adversarial tests specifically targeting the safety gate
• 11 bypasses found and fixed during adversarial testing

Polish

• /model flash|pro to switch engines mid-session
• /thinking to toggle reasoning visibility (hidden by default)
• Friendly Zeus-flavoured error messages
• Rewritten README for open-source appeal

By the numbers

• 873 tests, 0 failures
• 824 adversarial tests across 18 modules
• 14 destructive command patterns blocked
• 25+ bugs found and fixed via adversarial sweep

Install

git clone https://github.com/tylerbuilds/deepseek-harness.git
cd deepseek-harness
git checkout v0.3.0
bash scripts/install-local.sh --install-dir "$HOME/bin" --force
export PATH="$HOME/bin:$PATH"
export DEEPSEEK_API_KEY="sk-..."
deepseek-harness chat

Requirements

• Node.js >= 24
• DeepSeek API key (https://platform.deepseek.com/api_keys)

v0.2.0 — Interactive Chat Agent

v0.2.0 — Interactive Chat Agent

Adds a Claude Code-style interactive coding agent to the DeepSeek Harness.

New: deepseek-harness chat

Start an interactive coding session powered by DeepSeek V4:

export DEEPSEEK_API_KEY="sk-..."
deepseek-harness chat

Features:

• Streaming REPL with real-time tool execution display
• 8 tools: read_file, write_file, edit_file, search_content, search_files, run_command, list_directory, delete_file
• Tiered safety: direct execution for reads/edits, approval-gated for destructive ops
• Session persistence via SQLite with resume support
• Cost tracking per session (/cost)
• Subagent dispatch for parallel task execution
• Slash commands: /help, /model, /cost, /list, /exit

Adversarial Hardening

• 652 adversarial tests across 17 modules
• 25 bugs fixed, including 3 critical security vulnerabilities:
  • Path traversal bypass in file tools
  • Shell command injection in search_content and search_files
  • Various NaN/Infinity, stale state, and type confusion bugs
• 886 total tests, 0 failures

Install

git clone https://github.com/tylerbuilds/deepseek-harness.git
cd deepseek-harness
git checkout v0.2.0
npm ci && npm run build && npm run install:local -- --force

Requirements

• Node.js >= 24
• DeepSeek API key (https://platform.deepseek.com/api_keys)

DeepSeek Harness v0.0.1

First public MIT source release.

DeepSeek Harness is a source-first CLI and MCP harness for bounded heavy corpus work: books, OCR, translations, JSONL datasets, long-form sections and media catalogues.

Clone the repository and follow the user guide. npm and Cargo publication remain intentionally disabled. Live DeepSeek calls remain separately approval-gated.