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line-of-sight

v0.2.2

Published

Stay oriented while coding agents work. Follow, search, and ask about Claude Code and Codex sessions, locally and read-only.

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Links

Git

Maintainers

twinwesttwinwest

Keywords

agent-observabilityclaudeclaude-codeclicodexcoding-agentsdeveloper-toolslocal-firstopenai-codex

Readme

Line of Sight

CI npm License: MIT

Stay oriented while coding agents work.

Line of Sight is a local, read-only companion for Claude Code and Codex CLI. Follow live and past sessions, search across conversations, and ask questions about any step—without touching the agent's working session.

Line of Sight: reading a session and asking about selected text

Quick start

Requires macOS, Node.js 20+, and claude (2.1.267+) or codex (0.153.4+) on your PATH. Set up and authenticate the CLI you want to use first. Linux is untested.

npm i -g line-of-sight
sight open

Sight runs in the background and shows every Claude Code and Codex session, past and live, at http://127.0.0.1:2020. Choose a session, select text, and click Ask. Run sight open again after a restart.

To start Sight automatically with your agent, launch the agent through it:

sight claude    # or: sight codex

Understand the work

  • Follow. Read live sessions as they unfold, or return to past work without digging through terminal output.
  • Inspect. See the conversation, tool calls, results, and subagent work in one readable view.
  • Ask. Select any text and ask what happened, why the agent did it, or whether something deserves a closer look. Answers live in a separate, read-only side chat.
  • Search. Find decisions and explanations across Claude Code and Codex sessions.
  • Copy. Copy messages as Markdown or code blocks as plain code.

Comprehension, not control

Line of Sight is not a control plane or mission-control dashboard for agents. It does not orchestrate their work, send them commands, or reduce a session to a completion status. It gives you a readable view of what happened and a separate place to question it, while the working conversation stays untouched.

Privacy and behavior

  • Read-only questions. Sight cannot edit your project or send replies to the working agent. Claude Code uses restricted tools; Codex uses a read-only sandbox.
  • Local storage. The viewer listens only on 127.0.0.1. Transcripts are read from disk; indexed content, saved Q&A and, per question, a snapshot of the conversation around it live in ~/.sight. There is no telemetry.
  • Model access. Sight uses your CLI's authentication and model service. Questions, transcript context, and project content read by the responder are sent to that service, using your account's quota or billing.
  • Retention. Sight mirrors the transcripts on disk. If a transcript is deleted, its session and saved side chats are removed from Sight too. Claude Code deletes transcripts itself after cleanupPeriodDays (30 by default). To keep your questions, answers and their conversation snapshot after that, set keepSideChats — see the usage guide.

Uninstall

sight stop
npm uninstall -g line-of-sight
rm -rf ~/.sight

Deleting ~/.sight removes Sight's index, settings, and saved side chats. Your Claude Code and Codex transcripts are not touched.

Help

See the usage guide for configuration and troubleshooting, or run sight --help for all commands.

License

MIT