phase: 7, status: plan-as-execute, persona: backend-engineer+security-engineer, task: T-7.9
---ci---
project: acdl
phase: 7
milestone: v1.1
status: plan-as-execute
persona: backend-engineer+security-engineer
task: T-7.9
requirements.covered: [REQ-19]
---/ci---
Wave 4 (co-authored): platform/confidence_signal.py (REQ-19).
backend-engineer: 6-input weighted sum (WEIGHTS = policy 0.30,
validation 0.25, freshness 0.10, source 0.15, history 0.10, nfrs 0.10 per
D-040; sums to 1.0), per-env thresholds (dev 0.50, qa 0.75, prod 0.90,
dr 0.95), _per_input_score rules, compute() orchestration, Signal
dataclass, dev-warn->block flip (autonomous, no reviewer).
security-engineer: PENALTY dict (critical=None hard-override sentinel,
high 0.20, medium 0.05, low 0.01, info 0.0), critical-override
short-circuit return in compute(), severity penalty loop over the
policy input's failing PolicyCheckResult records.
Verified: missing input -> block + INPUT_MISSING:<name>; critical fail
-> 0.0 block + CRITICAL_OVERRIDE:<ruleId>; cold-start spike dev (ACDL
_TAG_NAMING skipped, all validation true, nfrs neutral 0.5) -> 0.95 pass.
stdlib only.
Jon Chery
68d90c08a7