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docs: bound IMG-JPG-2, IMG-JPG-3 and IMG-JPG-8 to frames of at most 2^31 points - #66

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claude/skills-marketplace-setup-hlbfz7
Sep 25, 2026
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ngngardner merged 1 commit into
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Summary

  • IMG-JPG-2, IMG-JPG-3 and IMG-JPG-8 now apply only to frames or rasters of at most 2^31 points. The maintainer approved this bound.
  • Above 2^31 points, decode.plane takes its depth from U32.shl(nn). That shift wraps, so the plane has fewer leaves than points and points alias. The rows were false as worded for such frames, which sides up to 65535 allow.
  • SPEC.md only; the code is unchanged.
  • The known-failures paragraph no longer lists IMG-JPG-2, and its "Left to prove" row records the bound.

Checks

  • bolt reports 0 errors (trace). No .bend file changed.

🤖 Generated with Claude Code

https://claude.ai/code/session_01A1bVZYFbhKkn2BKHKthcVP


Generated by Claude Code

…^31 points

The maintainer approved the bound. Above 2^31 points decode.plane's
depth wraps and points alias, so the rows were false as worded there.
No behaviour change.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A1bVZYFbhKkn2BKHKthcVP
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ngngardner merged commit fc28b7c into main Sep 25, 2026
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ngngardner deleted the claude/skills-marketplace-setup-hlbfz7 branch September 25, 2026 22:33
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