Critical Coupling (100%)
TransactionExportService.ts and bin/legacy-mainframe-sync.js changed together in 21 of 21 commits. No static imports connect them.
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npm install @spectra-g/engram-adapterVERSION 0.2.11 • SOURCE AVAILABLE (POLYFORM)
All tests pass. Ship it?
A live demonstration of invisible coupling.
Agent Console
USR
"Add a currency field to the TransactionExport service. Put it next to the amount."
AGT
Without Engram
Updated
TransactionExportService.tsUpdated 5 test cases
All tests pass
Task complete. 2 files changed. Ready to ship.
Meanwhile, untouched:
bin/legacy-mainframe-sync.js
const status = parts[3]; // → 'USD' (was 'COMPLETED')
ENGR
With Engram
3 Risk Factors Detected
Silent Failure Risk
Tests pass - but the legacy script parses by position. parts[3] will return 'USD' instead of 'COMPLETED'. Silent data corruption.
Architectural Constraint
Project Note: The export line format is consumed by a legacy cron job using positional indices. Field order changes must be mirrored.
Also updated: bin/legacy-mainframe-sync.jsDisaster Averted
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