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Original file line number Diff line number Diff line change
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description: Before opening a PR for a data-driven change (monitor threshold, alert routing/renotify, metric query, sampling rate, perf tweak), validate it against LIVE historical datareplay old-vs-new and report whether it actually achieves its goal. Refuses to ship (or redirects) when the data disproves the premise.
description: Before opening a PR for a data-driven change (monitor threshold, alert routing/renotify, metric query, sampling rate, perf tweak) — or a NEW monitor, gate, or alert whose threshold must be derived from historical data — validate it against LIVE historical data: replay old-vs-new (or the proposed threshold against history, e.g. a joint rate-AND-floor replay for gate composites) and report whether it actually achieves its goal. Refuses to ship (or redirects) when the data disproves the premise.
argument-hint: [what you're about to change + the metric/signal it should move]
allowed-tools: Bash(*), Read(*), Grep(*), Glob(*), AskUserQuestion(*)
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