ThreadBack AI v1.1.1 — Local Semantic Intent Upgrade

TinySemanticClassifier now resolves ambiguous intent candidates locally alongside the released stage-one pipeline.

• Ambiguity-only invocation: 0.25 <= score < 0.50; valid semantic decisions require confidence >= 0.65.
• No API key, remote AI, telemetry, backend, extra permissions or additional model fetch.
• Conservative cross-domain grouping with word-boundary concepts, generic/domain filtering and bounded subword features.
• Malformed metadata, classifier exceptions and unresolved fallback preserve the original heuristic result.
• 145 tests pass; typecheck, lint, build, extension verification and security scan pass. Actual isolated Chromium: all 13 candidate checks passed; the affected resolver path and final UI smoke passed again after narrowing the software category. See HANDOFF.md for exact staged evidence.

Download and extract the ZIP, then Load unpacked the folder containing manifest.json in Chrome/Edge Developer mode.

The 50-case benchmark is a curated development regression set, not general accuracy evidence. Exact RAM was not independently measured. Heuristic/topic ambiguity and existing development-toolchain advisories remain. Installed Chrome/Edge distributions were not independently qualified.

v1.1.0 and all earlier releases are preserved; this audited follow-up is v1.1.1.