From 7cc3ce0d9e181e6dfb8648d6dd7a528dcdfd3257 Mon Sep 17 00:00:00 2001
From: claude <claude@mycelium.de>
Date: Fri, 24 Jul 2026 15:22:24 +0200
Subject: [PATCH] =?UTF-8?q?fieldtest:=20fold-selector=20=E2=80=94=202=20ex?=
 =?UTF-8?q?amples,=200=20bugs=20/=205=20friction=20/=201=20spec-gap?=
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Per-cycle fieldtest of the #310 --tap selector, source-blind against the
release binary (e482f0e). Spine holds: fold selection end-to-end
byte-exact incl. the C1 pin and kind-aware folds/refusals on a Bool tap;
parse refusals precise at exit 2. Findings routed to the tracker:
introspect --folds renders the aura-std FoldKind table instead of the
registry roster (capitalized ids, record missing); no public surface
enumerates a blueprint's declared taps; an explicit --tap plan drops
unlisted taps without the C14 'aura: note:' skipped-tap notice; fold
summary-row timestamp semantics undocumented and mixed. Exit-class
tension already tracked on #297 (audit).

refs #310
---
 .../fold-selector/fs_1_two_taps.ops.json       | 15 +++++++++++++++
 .../fold-selector/fs_2_bool_tap.ops.json       | 18 ++++++++++++++++++
 2 files changed, 33 insertions(+)
 create mode 100644 fieldtests/fold-selector/fs_1_two_taps.ops.json
 create mode 100644 fieldtests/fold-selector/fs_2_bool_tap.ops.json

diff --git a/fieldtests/fold-selector/fs_1_two_taps.ops.json b/fieldtests/fold-selector/fs_1_two_taps.ops.json
new file mode 100644
index 0000000..c72da54
--- /dev/null
+++ b/fieldtests/fold-selector/fs_1_two_taps.ops.json
@@ -0,0 +1,15 @@
+[
+  {"op": "source", "role": "price", "kind": "F64"},
+  {"op": "add", "type": "SMA", "name": "fast", "bind": {"length": {"I64": 3}}},
+  {"op": "add", "type": "SMA", "name": "slow", "bind": {"length": {"I64": 6}}},
+  {"op": "add", "type": "SMA", "name": "px", "bind": {"length": {"I64": 1}}},
+  {"op": "feed", "role": "price", "into": ["fast.series", "slow.series", "px.series"]},
+  {"op": "add", "type": "Sub", "name": "sub"},
+  {"op": "connect", "from": "fast.value", "to": "sub.lhs"},
+  {"op": "connect", "from": "slow.value", "to": "sub.rhs"},
+  {"op": "add", "type": "Bias", "name": "bias", "bind": {"scale": {"F64": 0.5}}},
+  {"op": "connect", "from": "sub.value", "to": "bias.signal"},
+  {"op": "tap", "from": "sub.value", "as": "signal"},
+  {"op": "tap", "from": "px.value", "as": "price"},
+  {"op": "expose", "from": "bias.bias", "as": "bias"}
+]
diff --git a/fieldtests/fold-selector/fs_2_bool_tap.ops.json b/fieldtests/fold-selector/fs_2_bool_tap.ops.json
new file mode 100644
index 0000000..c3dcb86
--- /dev/null
+++ b/fieldtests/fold-selector/fs_2_bool_tap.ops.json
@@ -0,0 +1,18 @@
+[
+  {"op": "source", "role": "price", "kind": "F64"},
+  {"op": "add", "type": "SMA", "name": "fast", "bind": {"length": {"I64": 3}}},
+  {"op": "add", "type": "SMA", "name": "slow", "bind": {"length": {"I64": 6}}},
+  {"op": "feed", "role": "price", "into": ["fast.series", "slow.series"]},
+  {"op": "add", "type": "Gt", "name": "cross"},
+  {"op": "connect", "from": "fast.value", "to": "cross.a"},
+  {"op": "connect", "from": "slow.value", "to": "cross.b"},
+  {"op": "add", "type": "Sign", "name": "sgn"},
+  {"op": "add", "type": "Sub", "name": "sub"},
+  {"op": "connect", "from": "fast.value", "to": "sub.lhs"},
+  {"op": "connect", "from": "slow.value", "to": "sub.rhs"},
+  {"op": "connect", "from": "sub.value", "to": "sgn.value"},
+  {"op": "add", "type": "Bias", "name": "bias", "bind": {"scale": {"F64": 1.0}}},
+  {"op": "connect", "from": "sgn.value", "to": "bias.signal"},
+  {"op": "tap", "from": "cross.value", "as": "above"},
+  {"op": "expose", "from": "bias.bias", "as": "bias"}
+]