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Split infrastructure mixed classes by footer flags

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Jan Petykiewicz 2026-04-18 17:54:26 -07:00
commit ec7045363c
2 changed files with 12 additions and 0 deletions
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crates/rrt-runtime/src/smp.rs
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@ -5260,6 +5260,8 @@ fn build_infrastructure_asset_trace_report(
.unwrap_or_else(|| {
"no grounded 0xff0000ff/0x0002/0xff compact-prefix correlation was available".to_string()
}),
"cross-save q/p corpus checks now sharpen the mixed exact classes further without changing their identity: 0x000055f3/0x0001/0xff stays on prelude 0x0001/0xff with fixed short-flag pair 0x01/0x00 and fixed post-profile span 0x03 in both saves, while 0xff0000ff/0x0001/0xff stays on prelude 0x0001/0xff with fixed short-flag pair 0x00/0x00 and widely scattered post-profile spans in both saves".to_string(),
"that cross-save split keeps the semantic mix stable too: 0x000055f3/0x0001/0xff remains tunnel-dominant with only a small TrackCap residue, while 0xff0000ff/0x0001/0xff remains TrackCap-dominant with the same small tunnel-cap/section residue. So the next infrastructure question is no longer broad class identity; it is what the two short-flag families mean and why a minority of tunnel rows take the sparse 0xff0000ff outlier class instead of the stable span-0x03 tunnel family".to_string(),
side_buffer
.and_then(|probe| probe.payload_envelope_summary.as_ref())
.and_then(|summary| summary.name_prelude_candidate_summary.as_ref())
@ -5486,6 +5488,7 @@ fn build_infrastructure_asset_trace_report(
];
let notes = vec![
"Infrastructure asset trace now makes the side-buffer-versus-triplet split explicit: owner seam identity is grounded, the pure bridge-only 0x0002/0xff candidate class is grounded save-side, the upstream chooser above the child attach path is grounded as paired DT/ST siblings at 0x004a2c80 and 0x004a34e0 with decoded Bridge/Tunnel/BallastCap/Overpass families, grounded top-level branch meaning, grounded bridge/tunnel material selector roles, a concrete child-construction/write-side chain through 0x00490960, 0x00491c60, 0x0048a6c0, 0x00455a40, and 0x004559d0, and stable 0x00490960 mode families for BallastCap, TrackCap, Overpass, Tunnel, and Bridge branches. The current save-side name corpus already maps BallastCap, TrackCap, Tunnel, and Bridge rows onto those families directly, the candidate-pattern correlation narrows the dominant mixed 0x0001/0xff class to bridge:62 / track_cap:21 / tunnel:19, and the exact compact-prefix correlation now splits the full prelude corpus into mostly pure classes: 0xff0000ff/0x0002/0xff is pure bridge, 0xff000000/{0x0001,0x0002}/0xff are pure bridge, 0xf3010100/0x0055/0x00 is pure ballast-cap, and 0x0005d368/0x0001/0xff is pure track-cap, leaving only 0xff0000ff/0x0001/0xff and 0x000055f3/0x0001/0xff as the mixed residual classes.".to_string(),
"Cross-save q/p traces now also split those two mixed residual classes by footer and span behavior: 0x000055f3/0x0001/0xff always carries short-flag pair 0x01/0x00 on a fixed span-0x03 tunnel-dominant family, while 0xff0000ff/0x0001/0xff always carries short-flag pair 0x00/0x00 on the scattered-span TrackCap-dominant outlier family. The remaining unknown is therefore the meaning of those short-flag families and the sparse branch that routes a minority of tunnel rows into the 0xff0000ff outlier class.".to_string(),
if st_only_name_pair_corpus {
"The current save-side side-buffer corpus is ST-only, so this trace directly exercises the ST chooser sibling while the DT sibling remains grounded statically but unexercised in this save.".to_string()
} else {