cc-economics: ccusage JSON parse fails (expects `month`, ccusage now emits `period`)

[mvanhorn]

What happens

rtk cc-economics errors out:

Failed to parse ccusage JSON output: Invalid JSON structure for monthly data: missing field `month`

(rtk 0.43.0 / master, ccusage fetched via npx.)

Cause

Current ccusage emits period as the per-record key. Its monthly --json record keys are now:

period, inputTokens, outputTokens, cacheCreationTokens, cacheReadTokens, totalTokens, totalCost, ...

In src/analytics/ccusage.rs, the deserializer still requires the old key names:

• MonthlyEntry.month
• DailyEntry.date
• WeeklyEntry.week

Since ccusage renamed the key to period, every record fails to deserialize and the whole feature is unusable. All three granularities are affected, not just monthly.

Expected vs actual

• Expected: cc-economics renders spend-vs-savings.
• Actual: hard parse error.

Suggested fix

Accept period as an alias for the existing key field on each granularity (backward-compatible with older ccusage that still emits month/date/week). PR incoming.

[pszymkowiak]

wshm · Automated triage by AI

🔍 Automated Triage

🐛 Category	bug
🟠 Priority	high
🎯 Confidence	97%

Summary

ccusage JSON deserialization broken due to upstream key rename (month/date/week → period); fix PR #2732 already in progress — merge promptly.

This looks like a simple fix that could be auto-resolved. Repo maintainers can use /wshm fix to attempt it.

📁 Relevant files

• src/analytics/ccusage.rs

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Triaged automatically by wshm · This is an automated analysis, not a human review.