What is AskOnce?
AskOnce is an AI developer tool that transfers your working context between Claude Code and Codex, so you can switch coding assistants without re-explaining the project. When you move from one tool to the other, it captures the session and generates a brief covering your goals, the files you changed, commands you ran, test results, and the decisions you made, then hands that brief to a new chat in the other tool. The capture uses fixed rules rather than AI summarization, so the brief reports what actually happened instead of a paraphrase, and every brief is scanned for secrets before it is shared. AskOnce runs entirely locally with no server and no accounts, and it keeps an activity log of every handoff so you can see what was passed and when. It is built for developers who work across both Claude Code and Codex on Windows and want project continuity when they switch. Compared with manually copying a handoff prompt or maintaining AGENTS.md and CLAUDE.md files by hand, AskOnce automates the factual capture and transfer. For developers on BestAIFor comparing AI developer tools, its draw is that context handoff is automatic, rule-based, and local, with secret scanning built in before anything leaves your machine.
What is AskOnce used for?
Automatically transferring coding session context between Claude Code and Codex so developers can switch tools without losing work.
How much does AskOnce cost?
Pros and cons
Pros
- Automatically transfers session context between Claude Code and Codex
- Briefs are built from fixed rules, not AI summaries, so they report what actually happened
- Scans every brief for secrets before it is shared
- Runs fully local with no server and no account or sign-up
- Keeps an activity log of every context handoff
Cons
- Windows-only, so macOS and Linux developers are not covered
- Scope is limited to Claude Code and Codex, not other AI coding tools
- Context transfer is one-way into a new chat rather than a live two-way sync
- Usefulness depends on already working across both supported tools
Questions about AskOnce
What is AskOnce used for?
AskOnce is used to carry coding context between Claude Code and Codex, generating a brief of your goals, changed files, commands, test results, and decisions so you can switch tools without losing your place.
Is AskOnce free?
Yes. AskOnce is free to download and use, with no account and no sign-up required, and it runs entirely on your own machine.
Does AskOnce protect secrets in the context it shares?
Yes. Every brief is scanned for secrets before it is shared, and because AskOnce is local-only with no server, context data stays on your machine.
AskOnce vs copying a handoff prompt by hand?
A manual handoff or AGENTS.md and CLAUDE.md files require you to copy context yourself, while AskOnce captures the session automatically with fixed rules and transfers it to the other tool for you.
What are the best alternatives to AskOnce?
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