# Claude Code and Codex Assist

> VS Code extension for viewing Claude Code, Codex CLI, OpenCode, Grok, and GitHub Copilot chat history, file diffs, and usage analytics — locally, inside your editor. Works in VS Code, Cursor, Windsurf, Trae, and Antigravity. Free tier; Pro is $4.99/month or $49.99 lifetime. Not affiliated with Anthropic, OpenAI, SST/OpenCode, xAI/Grok, or GitHub.

Every page below is also published as Markdown at the same URL with a `.md` extension (for example https://ccassist.dev/upgrade.md). Markdown links are given first because they are cheaper to read than the HTML.

## Install
- VS Code Marketplace: https://marketplace.visualstudio.com/items?itemName=agsoft.claude-history-viewer
- Open VSX (Cursor/Windsurf/Trae): https://open-vsx.org/extension/agsoft/claude-history-viewer

## Pages
- [Home](https://ccassist.dev/index.md): what the extension does, features, pricing, FAQ. HTML: https://ccassist.dev/
- [Pricing (Pro upgrade)](https://ccassist.dev/upgrade.md): Free vs Pro Monthly vs Pro Lifetime. HTML: https://ccassist.dev/upgrade/
- [Guides index](https://ccassist.dev/guides.md): every how-to, feature guide, comparison, and roundup on this site. HTML: https://ccassist.dev/guides/
- [Claude Code & Codex usage leaderboard](https://ccassist.dev/leaderboard.md): opt-in public rankings by API-equivalent cost, output tokens, active hours and streak; how ranking works and what is shared. HTML: https://ccassist.dev/leaderboard/
- [Changelog](https://ccassist.dev/changelog.md): release history. HTML: https://ccassist.dev/changelog/
- [Privacy policy](https://ccassist.dev/privacy.md). HTML: https://ccassist.dev/privacy/
- [Terms](https://ccassist.dev/terms.md). HTML: https://ccassist.dev/terms/

## Blog
- [Blog index](https://ccassist.dev/blog.md): every guide, how-to, comparison and roundup, newest first. HTML: https://ccassist.dev/blog/ RSS: https://ccassist.dev/blog/feed.xml
- [Claude Code weekly limit and 5-hour limit, explained](https://ccassist.dev/blog/claude-code-weekly-limit.md): How the Claude Code weekly limit and 5-hour session limit work on Pro and Max, when each resets, how to check what's left, and what to do at the limit. HTML: https://ccassist.dev/blog/claude-code-weekly-limit/
- [How to undo Claude Code changes (rewind, git, recovery)](https://ccassist.dev/blog/undo-claude-code-changes.md): Undo Claude Code changes with /rewind checkpoints, git and VS Code Local History, and recover files a Bash command deleted. Covers Codex CLI too. HTML: https://ccassist.dev/blog/undo-claude-code-changes/
- [Where Claude Code stores conversations (and why they vanish)](https://ccassist.dev/blog/where-claude-code-stores-conversations.md): Claude Code saves each session as a JSONL file in ~/.claude/projects and deletes it after 30 days. Exact paths per OS, the file format, and how to keep them. HTML: https://ccassist.dev/blog/where-claude-code-stores-conversations/
- [Best Claude Code VS Code extensions in 2026](https://ccassist.dev/best-claude-code-vscode-extensions-2026.md): The Claude Code VS Code extensions worth installing in 2026, grouped by job, with install counts and update dates checked on 1 October 2026. HTML: https://ccassist.dev/best-claude-code-vscode-extensions-2026/
- [CCAssist vs ccusage: which Claude Code usage tool?](https://ccassist.dev/compare/ccassist-vs-ccusage.md): ccusage is a free CLI for Claude Code and Codex usage reports; CCAssist puts usage beside chat history and diffs in VS Code. Tested side by side on one week. HTML: https://ccassist.dev/compare/ccassist-vs-ccusage/
- [Claude Code usage tracker: tokens, cost per day, quota](https://ccassist.dev/claude-code-usage-tracker.md): How Claude Code usage is measured: the four token fields in each session file, how cost estimates use API prices, what /usage shows, and a daily cost script. HTML: https://ccassist.dev/claude-code-usage-tracker/
- [Codex CLI history: find, resume and read old sessions](https://ccassist.dev/codex-cli-history-viewer.md): Where Codex CLI keeps session history, how codex resume and codex fork find it, jq one-liners for rollout files, and viewing it all in VS Code. HTML: https://ccassist.dev/codex-cli-history-viewer/
- [How to view Claude Code chat history](https://ccassist.dev/how-to/view-claude-code-chat-history.md): View Claude Code chat history: claude --continue, --resume and the /resume picker, jq one-liners for the JSONL files, and searching every project in VS Code. HTML: https://ccassist.dev/how-to/view-claude-code-chat-history/

## Key facts
- Reads supported local assistant history folders including ~/.claude/projects/ and ~/.codex/sessions/; all processing is local by default.
- Features: session browser, indexed chat history search, file diff reconstruction, usage/cost analytics dashboard, Markdown export, session archive, and Claude/Codex session fork/resume.
- GitHub: https://github.com/yashagldit/Claude-Code-History-VSCode

## Optional
- [Full site as one document](https://ccassist.dev/llms-full.txt): every page above, concatenated in Markdown.