Detect whitespace padding used to hide prompt-injection instructions (P9)#24

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korjavin wants to merge 12 commits into

NVIDIA:mainfrom

korjavin:feat/detect-whitespace-padding-injection

Commits on Jun 11, 2026

docs: add whitespace padding detection (P9) implementation plan

korjavin
and
claude
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feat: add whitespace padding detector helper module (P9 Task 1)
korjavin
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feat: add P9 whitespace padding findings to prompt-injection analyzer
korjavin
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feat: add P9 whitespace padding detection to MCP manifest fields
korjavin
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test: P9 acceptance verification and adversarial padding-char coverage
korjavin
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docs: add P9 whitespace padding to README and CLAUDE.md, draft issue #20 comment
korjavin
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fix: address review findings (U+2028/2029 vertical padding, block dedup, tests)
korjavin
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fix: detect U+2028/U+2029 vertical padding in MCP description fields
korjavin
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test: cover MCP block-kind P9 path; clarify _check_p9_padding docstring
korjavin
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fix: codex review - trailing-gap boundary and block/ratio dedup
korjavin
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docs: move completed plan 20260611-detect-whitespace-padding.md to completed/
korjavin
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chore: drop internal planning artifacts from feature branch

korjavin
and
claude
committed