What is Claude Code and Codex Assist used for?

Claude Code and Codex Assist is a VS Code extension for browsing, searching and resuming AI coding sessions from Claude Code, Codex, Copilot and others with diffs and token usage. It is a good fit for finding which AI session changed a file and tracking AI coding costs across projects.

Is Claude Code and Codex Assist free?

Yes. Claude Code and Codex Assist has a free plan.

Is Claude Code and Codex Assist open source?

No. Claude Code and Codex Assist is proprietary (closed-source) software. In the Developer Tools category, open-source options include Atlas, Munder Difflin and Agentacct.

What are some alternatives to Claude Code and Codex Assist?

Other SaaS products in the Developer Tools category include AgenKit, CNVS and Contextkit.

Claude Code and Codex Assist: pricing and alternatives

About Claude Code and Codex Assist

Claude Code and Codex Assist is an editor extension that organizes the history of your AI coding conversations. It describes itself as git blame for AI sessions: find the session and prompt that changed a file, then browse, search, resume and review what happened.

It reads sessions from Claude Code, Codex, OpenCode, Grok and Copilot, labeled by source. You can pin and rename sessions, fork or resume them, convert sessions between Claude and Codex formats and archive transcripts so CLI cleanup does not remove them. Code-change views show GitHub-style diffs, a combined review of every change in a conversation, one-click undo and reapply, and a file history timeline. Usage analytics track tokens and cost.

The extension installs in VS Code, Cursor, Antigravity and Trae from the VS Code Marketplace or Open VSX. It is a commercial product with a pricing section and a login, and the site states a privacy-first approach; plan details are not in the scraped text.

Key features

Browse history from several AI coding assistants
GitHub-style diffs for each conversation
One-click undo and reapply of file changes
Fork and resume past sessions
Token usage and cost analytics
Archive and export sessions as Markdown

Good fit for

→Finding which AI session changed a file
→Tracking AI coding costs across projects

Tags: vscode-extension; claude-code; codex; chat-history; developer-tools; diffs; token-usage

Claude Code and Codex Assist: questions and answers

What is Claude Code and Codex Assist used for?: Claude Code and Codex Assist is a VS Code extension for browsing, searching and resuming AI coding sessions from Claude Code, Codex, Copilot and others with diffs and token usage. It is a good fit for finding which AI session changed a file and tracking AI coding costs across projects.
Is Claude Code and Codex Assist free?: Yes. Claude Code and Codex Assist has a free plan.
Is Claude Code and Codex Assist open source?: No. Claude Code and Codex Assist is proprietary (closed-source) software. In the Developer Tools category, open-source options include Atlas, Munder Difflin and Agentacct.
What are some alternatives to Claude Code and Codex Assist?: Other SaaS products in the Developer Tools category include AgenKit, CNVS and Contextkit.