kcastle

The official Textual interface for kcastle-agent.

export DEEPSEEK_API_KEY=...  # deepseek-v4-flash
# or: export OPENAI_API_KEY=...  # gpt-5.5
uvx kcastle

The configured provider is selected automatically; DeepSeek takes precedence when both keys are present. --model and --context-window override its defaults.

Each launch creates its own titled, timestamped JSONL session under ~/.kcastle/sessions. Use --session PATH to open a specific session directly.

Type / in an empty composer to open the built-in commands. /resume switches sessions, /model switches detected backends, /compact compacts context, /permissions switches between approval prompts and allowing all tools, and /exit exits. While the agent is running, submitted text steers the current task; prefix a message with /queue to run it after the current task settles. Press Escape to cancel the current operation.

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