fix(scripts): recompute metadata.total_size after stripping vision weights - #117
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…ights strip_vision_weights.py removed vision keys from weight_map but left metadata.total_size at its pre-strip value. Given an index with total_size=96 and 32 bytes of vision tensors, the index still reported 96 after stripping, so consumers trusting total_size over-report disk usage by the stripped volume (~0.9 GB on the real 35B checkpoint). Tracks the bytes actually dropped from each rewritten shard (already computed for the per-shard log line) and subtracts the running total from metadata.total_size once, after all shards are processed. This is equivalent to recomputing from the retained tensor offsets — untouched shards' bytes are unaffected by definition, so old_total - dropped equals the true new total. Fixes Edge0-AI#104. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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Fixes #104.
Stripping vision tensors leaves
metadata.total_sizeat its original value. Track the tensor bytes removed across shards and subtract them fromtotal_sizewhen present; leave indexes without that field unchanged.Rebased onto the
python/layout. Tests cover multiple affected shards, an untouched shard, retained payloads, optional metadata, and backup behavior. Local default suite: 84 passed, 1 skipped, 4 slow tests deselected with MLX 0.30.4 and mlx-lm 0.31.0. The two size-regression tests fail on the unpatched base.Related: #121 addresses the same bug.