Edo Tensei – AI Session Handoff Manager

Edo Tensei – AI Session Handoff Manager for VS Code

What is Edo Tensei?

When your AI quota runs out mid-task, switching to another IDE shouldn't mean losing all your context.

Edo Tensei (穢土轉生, "Impure World Reincarnation") extracts local AI session histories from the IDEs installed on your machine and packages them into a ready-to-paste handoff prompt — so the next agent can pick up exactly where the last one left off.

Workflow

Platform: Windows only. macOS and Linux support is not yet available.

Supported IDEs

IDE / Agent	Local Storage	Notes
GitHub Copilot Chat	`%APPDATA%/Code/User/…/chatSessions/`	JSON & JSONL
Cursor	`~/.cursor/projects/`	JSONL
Claude Code CLI	`~/.claude/projects/`	JSONL
OpenAI Codex CLI	`~/.codex/`	JSONL
Kiro	`%APPDATA%/Kiro/…/kiroagent/`	JSON (`.chat`)
Windsurf	`~/.codeium/windsurf/cascade/`	Binary (path-only handoff)
Antigravity	`~/.gemini/antigravity/brain/`	Preview log only — see Known Limitations

Key Features

Multi-IDE Extraction: Automatically scans all supported IDEs and surfaces sessions grouped by IDE → Project → Session.
Project-Scoped Scan: "Scan Project Sessions" filters to only sessions that match your current workspace.
Two Handoff Modes:
- Path mode (default): Outputs the session file path + a per-IDE reading guide. Token-efficient; the receiving agent reads only what it needs.
- Full-text mode: Embeds the complete conversation. Works everywhere, uses more tokens.
One-Click Resurrect: Copies a formatted handoff prompt to clipboard — paste it into any new AI chat to restore context instantly.
Export to .edo_tensei/: Saves handoff prompts as Markdown files, organized by IDE/project/timestamp.
Raw File Preview: Opens the original session file directly in VS Code for manual inspection or editing.
.gitignore Helper: Automatically prompts you to add .edo_tensei/ to .gitignore so local exports don't pollute your repo.

Features

Quick Start

Open the Edo Tensei view in the VS Code Activity Bar (archive icon).
Click Scan Project Sessions to find sessions matching your current workspace, or Fetch ALL Historical Sessions to scan everything.
Browse sessions grouped by IDE in the tree view.
Right-click a session and choose Copy Handoff Prompt to copy a ready-to-paste prompt.
Paste into your new IDE / AI agent and continue.

UI Overview

Configuration

Open VS Code Settings and search for edoTensei.

Setting	Options	Default	Description
`edoTensei.handoffMode`	`path` / `fullText`	`path`	`path` is recommended for token efficiency.
`edoTensei.promptLanguage`	`English` / `Traditional Chinese` / `Simplified Chinese` / `Japanese` / `Korean`	`English`	Language of the generated handoff prompt.
`edoTensei.customScanPaths`	Object `{ "claude": [], … }`	`{}`	Override the default scan directories for any IDE.

Custom Scan Paths Example

{
  "edoTensei.customScanPaths": {
    "claude": ["D:/custom-claude-projects"],
    "copilot": ["E:/another-vscode-profile/chatSessions"]
  }
}

Commands

All commands are available via the Command Palette (Ctrl+Shift+P) under the Edo Tensei category.

Command	Description
Scan Project Sessions	Find sessions matching the current workspace
Fetch ALL Historical Sessions	Scan every IDE for all local sessions
Copy Handoff Prompt	Copy handoff prompt for the selected session
View Parsed Session	Open a rendered Markdown preview of the session
Preview Raw Session File	Open the original session file
Copy Raw File Path	Copy the session file path to clipboard
Export Session to .edo_tensei	Save handoff prompt as a Markdown file
Export All Sessions to .edo_tensei	Save all scanned sessions to `.edo_tensei/`

Privacy & Local-First

Edo Tensei is completely local-first. All extraction and parsing runs on your machine, reading directly from local files (SQLite, JSONL, JSON, or text). No data is sent to any external server.

The .edo_tensei/ export folder is created inside your workspace. The extension will prompt you to add it to .gitignore on first use.

Known Limitations

macOS / Linux: Not yet supported. The extension is currently Windows-only.
Trae: Not yet supported. Local databases use SQLCipher encryption; no public key is available.
Windsurf: Session files are stored in a binary protobuf format. Edo Tensei falls back to path mode only — it copies the file path and a reading guide, but cannot embed the full conversation.
Antigravity: Extracts from overview.txt (preview log), which truncates messages at ~900 characters. Full conversation history is stored in Antigravity's cloud only and is not accessible locally.

Recommended Companions

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VS Code Marketplace | Open VSX Registry

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