From 05e9a00afc3057ab3e272b816a300d0d1b3c7f0f Mon Sep 17 00:00:00 2001
From: claude <claude@mycelium.de>
Date: Fri, 24 Jul 2026 16:46:38 +0200
Subject: [PATCH] =?UTF-8?q?fieldtest:=20harvest-sweep=20=E2=80=94=203=20ex?=
 =?UTF-8?q?amples,=201=20bug=20/=201=20friction=20/=206=20working?=
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Source-blind against the release binary at 120d116, one example per
axis: hs_1_discovery (help -> --folds roster -> --tap spread=mean
without opening source or JSON; fold row at the last warm ts as
documented), hs_2_typo_key (three closed-set refusals — typo'd op key,
undeclared tap, unknown fold — each naming token + valid set, exit 1),
hs_3_three_taps (skipped-tap note fires exactly per skipped tap under
an explicit plan, silent under record-all and bind-all).

Findings routed: the op-key refusal cites the wrong line (points at
the next element; recovery still carried by the key name) -> #336;
declared-tap names have no positive discovery surface (the deferred
#333 view half, evidence now in hand) -> #337. All seven sweep
closures verified working from the outside.

refs #336, refs #337
---
 fieldtests/harvest-sweep/hs_1_discovery.ops.json | 16 ++++++++++++++++
 fieldtests/harvest-sweep/hs_2_typo_key.ops.json  | 12 ++++++++++++
 .../harvest-sweep/hs_3_three_taps.ops.json       | 16 ++++++++++++++++
 3 files changed, 44 insertions(+)
 create mode 100644 fieldtests/harvest-sweep/hs_1_discovery.ops.json
 create mode 100644 fieldtests/harvest-sweep/hs_2_typo_key.ops.json
 create mode 100644 fieldtests/harvest-sweep/hs_3_three_taps.ops.json

diff --git a/fieldtests/harvest-sweep/hs_1_discovery.ops.json b/fieldtests/harvest-sweep/hs_1_discovery.ops.json
new file mode 100644
index 0000000..3873ae1
--- /dev/null
+++ b/fieldtests/harvest-sweep/hs_1_discovery.ops.json
@@ -0,0 +1,16 @@
+[
+  {"op": "doc", "text": "SMA crossover bias with two measurement taps for fold discovery"},
+  {"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": "spread"},
+  {"op": "tap", "from": "px.value", "as": "price"},
+  {"op": "expose", "from": "bias.bias", "as": "bias"}
+]
diff --git a/fieldtests/harvest-sweep/hs_2_typo_key.ops.json b/fieldtests/harvest-sweep/hs_2_typo_key.ops.json
new file mode 100644
index 0000000..d5dfecf
--- /dev/null
+++ b/fieldtests/harvest-sweep/hs_2_typo_key.ops.json
@@ -0,0 +1,12 @@
+[
+  {"op": "source", "role": "price", "kind": "F64"},
+  {"op": "add", "type": "SMA", "name": "fast", "params": {"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": "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"},
+  {"op": "connect", "from": "sub.value", "to": "bias.signal"},
+  {"op": "expose", "from": "bias.bias", "as": "bias"}
+]
diff --git a/fieldtests/harvest-sweep/hs_3_three_taps.ops.json b/fieldtests/harvest-sweep/hs_3_three_taps.ops.json
new file mode 100644
index 0000000..552fa7d
--- /dev/null
+++ b/fieldtests/harvest-sweep/hs_3_three_taps.ops.json
@@ -0,0 +1,16 @@
+[
+  {"op": "doc", "text": "SMA crossover exposing three measurement taps to probe the skipped-tap note"},
+  {"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": "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": 1.0}}},
+  {"op": "connect", "from": "sub.value", "to": "bias.signal"},
+  {"op": "tap", "from": "fast.value", "as": "fast_ma"},
+  {"op": "tap", "from": "slow.value", "as": "slow_ma"},
+  {"op": "tap", "from": "sub.value", "as": "spread"},
+  {"op": "expose", "from": "bias.bias", "as": "bias"}
+]