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Library / First Principles Framework (FPF) - Core Conceptual Specification
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C.3.A:B.6 - TA lane [A/I]

Qualify provers, checkers, measurement pipelines, and classifiers separately. A classifier output can support an assertion about J; the tool neither becomes the candidate nor makes the governed criterion hold. Version drift may make the support unavailable and hence produce unknown for a candidate-bearing use.

  • TA-1. Every tool whose qualification is relied on by VA or LA SHALL identify its exact version and qualification status, and the receiving guard SHALL recover that declaration when the reliance is current.
  • TA-2. Missing or weaker tool qualification MUST NOT be hidden by lowering the owning episteme’s F or widening G. The receiving policy may require additional independent support, reduce or condition R, or refuse the use while preserving the exact unavailable-support reason.