anti
879f5e731b
BEHAVE-EXTRACTOR.md Phase A Step 2. The first primitive — picked
first because it has the highest discriminative value (HUMAN vs
everyone) and the simplest implementation (paste-event ratio over
total inputs).
* _features/motor.py:input_modality(ctx) emits one Observation
per session in {typed, pasted, mixed} with confidence 0.75 / 0.70.
* _features/_emit.py centralises the make_observation helper so
every feature module gets the same Window/source/evidence_ref
boilerplate without copy-paste.
* Thresholds inherited from the prototype's calibration history
(MODALITY_PASTED_MIN=0.40, MODALITY_TYPED_MAX=0.05).
* Zero-input session skips emission — registry doesn't admit
"unknown" here.
Tests: pure-typed → typed, pure-pasted → pasted, mixed → mixed,
output-only session → no observation, full envelope round-trip.
46 lines
1.3 KiB
Python
46 lines
1.3 KiB
Python
"""``motor.*`` feature functions.
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Step 2: ``motor.input_modality`` — typed / pasted / mixed.
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Step 3: ``motor.paste_burst_rate`` — none / occasional / habitual.
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"""
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from __future__ import annotations
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from typing import Iterator
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from decnet_behave_core.spec.envelope import Observation
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from decnet.profiler.behave_shell._ctx import SessionContext
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from decnet.profiler.behave_shell._features._emit import make_observation
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from decnet.profiler.behave_shell._thresholds import (
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MODALITY_PASTED_MIN,
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MODALITY_TYPED_MAX,
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)
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def input_modality(ctx: SessionContext) -> Iterator[Observation]:
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"""Emit ``motor.input_modality`` ∈ {typed, pasted, mixed}.
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Ratio of paste-class events to total inputs. Empty input → skip
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emission entirely (the registry doesn't admit ``unknown`` here
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and fabricating ``typed`` for a zero-input session is dishonest).
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"""
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n = len(ctx.input_events)
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if n == 0:
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return
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ratio = ctx.paste_event_count / n
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if ratio >= MODALITY_PASTED_MIN:
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modality = "pasted"
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confidence = 0.75
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elif ratio <= MODALITY_TYPED_MAX:
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modality = "typed"
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confidence = 0.75
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else:
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modality = "mixed"
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confidence = 0.70
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yield make_observation(
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ctx,
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primitive="motor.input_modality",
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value=modality,
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confidence=confidence,
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)
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