paid-measurement-loop

1# Paid Measurement Loop
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3Reads a paid-ads change back against a control over a fixed readback window and returns Promote / Keep-testing / Rollback / Unproven. This is the paid readback loop — distinct from `roi-calculator` (the ROI/CPA math, which this delegates to), `ad-account-auditor` (RQS score/veto adjudication), and `performance-analyzer` (cross-channel rollup); it owns only the readback decision, window, and control.
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5## Quick Start
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7```text
8Read back the budget increase I made on Campaign X two weeks ago — did ROAS hold vs the control?
9I rotated in new creative on the prospecting set on the 10th — promote, keep testing, or roll back?
10Compare ROAS on my Meta vs Google search campaigns (I have both CSV exports)
11```
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13## Skill Contract
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15**Expected output**: a per-change `readback_decision` (Promote / Keep-testing / Rollback / Unproven) and Cycle Retro bound to the exact change/test head, artifact and measurement-contract hashes, with delta-vs-control on a primary metric (ROAS or CPA), the readback window used, normalization notes (attribution window + currency), evidence refs, and a handoff summary ready for `memory/ad/paid-measurement-loop/`. `readback_decision` is not an RQS auditor verdict.
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