Coding agents add duplicate code instead of editing what exists
Posted by WantBorn (founder-seeded)
Agents avoid rewriting existing code (it costs context) and append near-identical functions instead, so codebases accumulate duplicate and dead implementations. Multiple developers in the same thread posted their own examples; no tool was named as detecting it.
- Detects near-identical existing implementations before new code is added
- Works within normal agent context limits, no full-codebase reread required
No bonus criteria.
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