SD-318

[darkcat-alley] Darkcat Alley — standardised 3-model cross-triangulation process. Named, lexified (v0.25), documented. Review instructions standardise output to narrative + structured YAML. Parser (bin/triangulate) computes 8 metrics from YAML findings: finding count, convergence rate, marginal value (diminishing returns curve), severity distribution, Watchdog category distribution, severity calibration, pre/post-QA delta, false positive rate. 7 visualisation targets for Python/hex.tech portfolio. No retrofit of existing reviews — cut losses, run clean. Process def: docs/internal/weaver/darkcat-alley.md. Decision file: docs/decisions/SD-318-darkcat-alley.md.

**STANDING (this run)**

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