What is Claude Code Recorder?

A tool developed by Scalar CEO Fukatsu that records Claude Code exchanges so you can look back at them later. The developer used version v1.3.0.

How does it record conversations?

Each time a Claude Code response finishes, a hook calls a recording process that saves prompts, responses, tool inputs and outputs, and token usage to a database via ScalarDB. The default storage location is a local SQLite file.

What did the review find besides problems?

It also listed habits worth keeping, such as passing the full error text and checking review criteria up front.

Large Language ModelsAI Coding AssistantsZenn AI/ML16h agoNov 11, 2026, 16:00 JST

Claude Code Recorder's prompt-coach finds repeated-request habits

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3 Key Points

What happened
A developer ran Claude Code Recorder's prompt-coach on 7 days of sessions; it flagged one request sent twice 17 minutes apart and an audience named only on the second ask.
Why it matters
The report pairs each original prompt with a rewritten version and also lists habits worth keeping, so the self-review points to specific wording changes rather than generic tips.

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Context & Analysis

Claude Code Recorder works by hooking into the end of every Claude Code response and writing the exchange to a database through ScalarDB, with local SQLite as the default store. That record can then be browsed with the ccrec ui command or exported to Markdown with ccrec export, which is what makes a retrospective possible at all.

The prompt-coach skill reads those saved records and produces a Markdown report. In this case the report paired each original prompt with a rewritten example, which let the developer see that a preference stated once was really a standing rule better placed in CLAUDE.md, and that a request naming only a feature could trigger 40 tool calls before the intent was clear.

The developer said the most useful part was seeing their own actual messages alongside the follow-up exchanges, and plans to run the review periodically rather than once.

FAQ

What is Claude Code Recorder?: A tool developed by Scalar CEO Fukatsu that records Claude Code exchanges so you can look back at them later. The developer used version v1.3.0.
How does it record conversations?: Each time a Claude Code response finishes, a hook calls a recording process that saves prompts, responses, tool inputs and outputs, and token usage to a database via ScalarDB. The default storage location is a local SQLite file.
What did the review find besides problems?: It also listed habits worth keeping, such as passing the full error text and checking review criteria up front.

Zenn AI/MLRead Original Article

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