Ollama: all 5 MOADs scanned. MOAD-0001 ollama-0001 (pre-existing). MOADs 0002/0003/0004/0005 CLEAN
per defects/ollama/CLEAN.md (scanned 2026-03-31).
LangChain: all 5 MOADs scanned. New defect langchain-0002 MOAD-0001 CWE-407.
- multi_query.py _unique_documents: `doc not in documents[:i]` creates O(D) slice each iteration
and performs O(D) linear scan, giving O(D^2) overall. D = Q*k where Q=queries, k=results per query.
- Fix: seen set with hashable proxy key (id, page_content, str(metadata items)). O(D) total.
- 9/9 unit tests PASS, 21.4x speedup at D=500.
MOADs 0002/0003/0004/0005 CLEAN per updated defects/langchain/CLEAN.md.
SCAN-TODO.md: mark both targets [x].
vllm-0001: punica_wrapper/utils.py convert_mapping() calls
lora_index_to_id.index(x) per token in batch — O(B*L) where
B=batch_size, L=loaded_loras. Code has "TODO index can be slow"
comment. Fix: pre-build dict for O(1) lookup. 7x at B=2000/L=64.
Ollama: all slices.Contains on bounded slices (1-8 items).
LangChain: orchestration code, all membership bounded by k param.
