[BUG]/insights generates empty report — no AI insights produced (facets directory never created)

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Running /insights produces a report with raw stats (tool counts, response times, languages) but all AI-generated sections show "No data":

• What You Wanted
• Session Types
• What Helped Most
• Outcomes
• Primary Friction Types
• Inferred Satisfaction

Root cause observed: The facets directory referenced in the report (~/.claude/usage-data/facets) is never created. Without per-session facets, the synthesis step has nothing to work from.

Reproduced: Twice in the same session — same result both times. The insights data passed to the report is {}.

Environment:

• Platform: Windows 11
• Shell: PowerShell / Git Bash
• Sessions analyzed: 76 of 80 total
• Date range: 2026-05-24 to 2026-06-22

What does work: Session-meta files are all present and the stats derived from them (tool usage, line counts, response time histogram, time-of-day breakdown) render correctly in the report.

What Should Happen?

The /insights command should analyze session transcripts, populate the facets directory with per-session AI analysis, and produce a report where all sections contain data — including "What You Wanted", "Outcomes", "Primary Friction Types", and "Inferred Satisfaction".

Error Messages/Logs

Steps to Reproduce

1. Run /insights in Claude Code (Windows 11, PowerShell)
2. Open the generated HTML report at ~/.claude/usage-data/report-*.html
3. All AI-generated sections show "No data"
4. Check ~/.claude/usage-data/ — the facets/ directory is never created
5. Reproduced twice consecutively with identical results

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

! claude --version

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

_No response_