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sessioncast

v1.0.0

Published

Replay AI agent CLI sessions (Claude Code, Gemini CLI, Copilot CLI) for demos and presentations

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Links

Maintainers

rtisnertisne

Keywords

aiagentclaudegeminicopilotdemoreplaypresentationclisessionvibe-coding

Readme

sessioncast

Replay AI agent CLI sessions for demos and presentations — step by step, at your own pace.

Supports Claude Code today, with Gemini CLI and Copilot CLI support coming.

Install

npm install -g sessioncast

Usage

sessioncast

Opens a browser at http://localhost:3457 with a session browser on the left and a terminal-style player on the right.

Options

sessioncast [options]

  --port=<n>    Port to listen on (default: 3457)
  --no-open     Don't open the browser automatically
  -h, --help    Show this help

How it works

agentcast reads session files that Claude Code automatically saves to ~/.claude/projects/. Each session is a JSONL file containing the full conversation — user prompts, assistant responses, tool calls (Bash, Read, Write, Edit, …) and results.

The player parses these files into structured turns and lets you step through them one at a time during a live demo.

Features

Playback

  • Step forward with → or Space — reveals one turn at a time with typewriter animation
  • Step back with ← — removes the last turn
  • Restart with R — clears the terminal

Sessions & Chapters

  • Browse all sessions grouped by project in the sidebar
  • Add a title and chapters to any session via the annotation panel
  • Jump directly to any chapter during playback

Story system

  • Create multiple stories (named filtered views) for each session
  • During playback, press H to hide the last shown turn from the current story
  • Hidden turns are skipped automatically and replaced by a ··· divider so you can orient yourself
  • Switch stories without touching the original session file

Presentation mode

  • Press F to go fullscreen — sidebar and controls disappear
  • A floating HUD at the bottom shows step count and keyboard hints
  • The HUD auto-hides after 3 seconds of inactivity; move the mouse to reveal it

Keyboard shortcuts

| Key | Action | |-----|--------| | → / Space | Next turn | | ← | Previous turn | | R | Restart session | | H | Hide last turn (current story) | | F | Toggle presentation mode | | Esc | Exit presentation mode |

Session sources

| Agent | Session files | |-------|--------------| | Claude Code | ~/.claude/projects/<project>/<uuid>.jsonl | | Gemini CLI | Coming soon | | Copilot CLI | Coming soon |

License

MIT