v0.20.13

CDX Manager 0.20.13

Launches no longer open with a message you never typed

• RTK and Logics guidance used to be passed as the provider's positional prompt,
  which Claude Code and Codex submit as a user turn: a bare cdx <session>
  opened with that guidance shown as your message plus a model reply to it, and
  every resume sent it again as a new message.
• Claude now receives the guidance through --append-system-prompt, and Codex
  through -c developer_instructions=.... Launch, resume, and headless runs are
  all covered, and no turn is ever submitted on your behalf.
• Codex guidance is appended after any developer_instructions already set in
  the profile's config.toml rather than replacing it. When that value cannot be
  read (Python older than 3.11 without tomli), cdx leaves it untouched and adds
  no guidance.
• Antigravity has no instruction channel and, like Ollama, no longer receives
  the guidance.
• cdx doctor --check-provider-flags now verifies the options used to pass it.

Logics update hint

• The update notice now suggests logics-manager update instead of the legacy
  logics-manager self-update alias.

Validation

• 1055 Python tests and project lint pass.
• Verified against real CLIs on macOS, Linux (WSL), and Windows: Claude Code
  (2.1.177, 2.1.283) and Codex CLI (0.156.1, 0.157.1) receive the guidance, and
  interactive launches and resumes no longer add a user turn to the provider
  transcript, where 0.20.12 added one. Codex guidance also survives a resumed
  thread and merges with a profile's own developer_instructions.