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claude 697d81dd22 fieldtest: m37 data-authorability-boundary — 3 scenarios, 0 bugs / 2 friction / 1 spec-gap / 4 working
Milestone-close gate for milestone 37 (data-authorability boundary,
#310/#317/#271): source-blind consumer fieldtest against the release
binary at eb2b0a1, scenarios derived top-down from the milestone
promise rather than per-cycle axes.

- m37_1: NY Session authored via args + fold-selected taps, run e2e
  over US500 (default and --tap plans; summaries correct, unlisted
  tap inert).
- m37_2: London anchor registered by name, spliced via use into a
  consumer with open SMA lengths, swept over GER40, reproduced 2/2
  bit-identical (v2 propagates through the splice).
- m37_3a-e: five-way boundary-refusal battery; all exit 1 with
  actionable prose, escalation path named for namespaced types.

Gate verdict: green — all three boundary mechanisms deliver the
promise; genuinely-new logic is turned away toward Rust. Findings
routed: fold-summary read-back absorbed into #309, cross-run tap-file
lifecycle evidence onto #311, bare-refusal escalation-pointer parity
onto #341 (refs #309, refs #311, refs #341).
2026-07-24 23:43:53 +02:00

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[
{"op": "doc", "text": "London-open breakout: SMA-fast>slow sign traded only on the first London session bar, blend period and MA lengths left open to sweep"},
{"op": "source", "role": "price", "kind": "F64"},
{"op": "use", "ref": {"name": "london_anchor"}, "name": "anchor"},
{"op": "feed", "role": "price", "into": ["anchor.price"]},
{"op": "add", "type": "SMA", "name": "fast"},
{"op": "add", "type": "SMA", "name": "slow"},
{"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": "Sign", "name": "sgn"},
{"op": "connect", "from": "sub.value", "to": "sgn.value"},
{"op": "add", "type": "EqConst", "name": "isfirst", "bind": {"target": {"I64": 1}}},
{"op": "connect", "from": "anchor.bars", "to": "isfirst.value"},
{"op": "add", "type": "Const", "name": "flat", "bind": {"value": {"F64": 0.0}}},
{"op": "feed", "role": "price", "into": ["flat.clock"]},
{"op": "add", "type": "Select", "name": "gate"},
{"op": "connect", "from": "isfirst.value", "to": "gate.cond"},
{"op": "connect", "from": "sgn.value", "to": "gate.then"},
{"op": "connect", "from": "flat.value", "to": "gate.otherwise"},
{"op": "add", "type": "Bias", "name": "bias", "bind": {"scale": {"F64": 1.0}}},
{"op": "connect", "from": "gate.value", "to": "bias.signal"},
{"op": "expose", "from": "bias.bias", "as": "bias"}
]