Mixed commands and incomplete packet outputs

The fragment

is illegal: the source command is certified at the regular boundary $s=-1/2$, not at the incidence stratum.

An ${\mathsf{E}}_{3\text{–}6}$ command that also writes a new source-selected packet index is not admitted. Its certificate assumes a frozen packet. An OR guard involving ${\nu }_G$ and ${\nu }_{\mathrm{src}}$ does not construct a common mixed realization.

Source replacement must update the entire realization. Retaining the reference seam rotation or old charts fails the complete output contract at a changed deficit. The stale-rotation and time-translation failures remain distinct by prop:complete-output, in every declared affine frame.

The four-face exchange cannot be turned into a sourced particle event by enlarging a written support. Its moving incidence diagram remains away from the particle; identity contractible patch words do not replace the primitive ambient matching.