dotnet-replay 0.9.1

dotnet-replay

Interactive terminal viewer for Copilot CLI sessions and waza evaluation transcripts. Built as a single-file .NET 10 app

Try it out

Requires the .NET 10 SDK.

dnx dotnet-replay              # Browse your recent Copilot CLI sessions

No install needed — dnx downloads the tool to the NuGet cache, runs it, and cleans up.

Install

Global tool (recommended)

dotnet tool install -g dotnet-replay

Once installed globally, run replay directly from any directory.

Local tool manifest

dotnet new tool-manifest   # if you don't already have one
dotnet tool install dotnet-replay

With a local install, use dotnet replay instead.

Usage

Session Browser

replay                      # Browse recent Copilot CLI and Claude Code sessions
replay <session-id>         # Open a session by GUID

Run with no arguments to interactively browse your Copilot CLI and Claude Code sessions. Sessions are loaded asynchronously and can be filtered with /.

Interactive Mode (Default)

replay <file>               # Interactive pager with keybindings
replay <file> --tail 10     # Show only the last 10 turns
replay <file> --expand-tools # Show tool args, results, and thinking
replay <file> --full        # Don't truncate long content
replay <file> --filter user # Filter by event type (user, assistant, tool, error)
replay <file> --no-color    # Disable ANSI colors
replay session.jsonl --no-follow  # Disable auto-follow for JSONL files

Note: dotnet replay also works if you prefer the explicit prefix.

Auto-follow: JSONL files automatically watch for new content (like tail -f). Use --no-follow to disable this behavior.

Stream Mode (Non-Interactive)

replay <file> --stream      # Output entire transcript and exit
replay <file> | less        # Auto-switches to stream mode when piped

JSON and Summary Modes

replay <file> --json                    # Output as structured JSONL
replay <file> --json --filter user      # JSON output of user messages only
replay <file> --json --tail 5           # JSON output of last 5 turns
replay <file> --json --expand-tools     # Include tool args/results in JSON
replay --db sessions.db --json          # Export DB session metadata as JSON

replay <file> --summary                 # Show high-level session statistics
replay <file> --summary --json          # Summary as machine-readable JSON

JSON output format — One JSON object per line:

{"turn": 0, "role": "user", "timestamp": "2026-02-20T02:07:54Z", "content": "...", "content_length": 1234}
{"turn": 0, "role": "assistant", "timestamp": "2026-02-20T02:08:12Z", "content": "...", "content_length": 5678, "tool_calls": ["skill", "view"]}
{"turn": 0, "role": "tool", "tool_name": "view", "status": "complete", "result_length": 2048}

Summary output shows session overview: duration, turn counts, tools used, skills invoked, and errors.

Supported Formats

• Copilot CLI events (.jsonl) — Session transcripts from GitHub Copilot CLI
• Claude Code sessions (.jsonl) — Session transcripts from Claude Code (~/.claude/projects/)
• Waza evaluation results (.json) — EvaluationOutcome format with tasks[].runs[].transcript[]
• Waza task transcripts (.json) — Flat JSON with transcript[] array and optional session_digest

Keybindings

Examples

View an interactive transcript:

replay session-events.jsonl

View the last 5 turns with tool expansion:

replay results.json --tail 5 --expand-tools

Stream the entire transcript without interaction:

replay transcript.json --stream

Pipe to a file:

replay session.jsonl --expand-tools > output.txt

About

dotnet-replay was built by a squad currently in stealth mode.

License

MIT