Reporter overhaul (4/6): opt-in reporters, selection, StreamCollator replacement

common/changes/@rushstack/rush-reporter/docs-rush-reporter-overhaul-spec_2026-07-15-00-41-00.json

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+{
+  "changes": [
+    {
+      "packageName": "@rushstack/reporter",
+      "comment": "Add reporter selection with precedence: reporter names and log levels, agent and CI detection, --output parsing, and resolveReporterSelection that resolves the primary reporter and log level from CLI controls and the environment",
+      "type": "minor"
+    }
+  ],
+  "packageName": "@rushstack/reporter",
+  "email": "TheLarkInn@users.noreply.github.com"
+}

common/changes/@rushstack/rush-reporter/docs-rush-reporter-overhaul-spec_2026-07-15-00-45-15.json

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+{
+  "changes": [
+    {
+      "packageName": "@rushstack/reporter",
+      "comment": "Add independent per-reporter log-level filtering (quiet/normal/verbose/debug) with event classification, keeping diagnostic severity separate, and default the file reporter to debug",
+      "type": "minor"
+    }
+  ],
+  "packageName": "@rushstack/reporter",
+  "email": "TheLarkInn@users.noreply.github.com"
+}

common/changes/@rushstack/rush-reporter/docs-rush-reporter-overhaul-spec_2026-07-15-00-50-08.json

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+{
+  "changes": [
+    {
+      "packageName": "@rushstack/reporter",
+      "comment": "Add the automatic reporter selection matrix (planAutomaticReporters, describeReporterPlan, isMachineReporter) that maps agent, CI, TTY, and non-TTY environments to reporters and gives machine reporters exclusive stdout",
+      "type": "minor"
+    }
+  ],
+  "packageName": "@rushstack/reporter",
+  "email": "TheLarkInn@users.noreply.github.com"
+}

common/changes/@rushstack/rush-reporter/docs-rush-reporter-overhaul-spec_2026-07-15-01-00-00.json

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+{
+  "changes": [
+    {
+      "packageName": "@rushstack/reporter",
+      "comment": "Add the default interactive reporter with a three-row live region, spinner, width-aware active projects, throttled refresh, cursor restoration, failure diagnostic block, watch summaries, and NO_COLOR/FORCE_COLOR handling",
+      "type": "minor"
+    }
+  ],
+  "packageName": "@rushstack/reporter",
+  "email": "TheLarkInn@users.noreply.github.com"
+}

common/changes/@rushstack/rush-reporter/docs-rush-reporter-overhaul-spec_2026-07-15-01-05-03.json

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+{
+  "changes": [
+    {
+      "packageName": "@rushstack/reporter",
+      "comment": "Add the append-only plaintext and non-TTY reporter with concise and detailed variants, a 30-second heartbeat, StreamCollator-like grouping in detailed CI mode, and stable snapshots",
+      "type": "minor"
+    }
+  ],
+  "packageName": "@rushstack/reporter",
+  "email": "TheLarkInn@users.noreply.github.com"
+}

common/changes/@rushstack/rush-reporter/docs-rush-reporter-overhaul-spec_2026-07-15-01-12-29.json

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+{
+  "changes": [
+    {
+      "packageName": "@rushstack/reporter",
+      "comment": "Add the JSON reporter that emits the complete NDJSON event stream and the bounded AI reporter with a 64 KiB, 20-diagnostic projection carrying result, scope, codes, remediation, counts, and log reference",
+      "type": "minor"
+    }
+  ],
+  "packageName": "@rushstack/reporter",
+  "email": "TheLarkInn@users.noreply.github.com"
+}

common/changes/@rushstack/rush-reporter/docs-rush-reporter-overhaul-spec_2026-07-15-01-18-53.json

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+{
+  "changes": [
+    {
+      "packageName": "@rushstack/reporter",
+      "comment": "Add the full-detail file reporter that writes a debug NDJSON invocation log with owner-only permissions, secret redaction, a latest.log pointer, 14-day and 20-session retention, an OS-temp fallback, and nonfatal failure handling",
+      "type": "minor"
+    }
+  ],
+  "packageName": "@rushstack/reporter",
+  "email": "TheLarkInn@users.noreply.github.com"
+}

common/changes/@rushstack/rush-reporter/docs-rush-reporter-overhaul-spec_2026-07-15-01-24-04.json

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+{
+  "changes": [
+    {
+      "packageName": "@rushstack/reporter",
+      "comment": "Add the legacy reporter that reproduces the current Rush StreamCollator-style output, selectable and available as the RUSH_REPORTER=legacy emergency fallback, validated against the frozen legacy snapshots",
+      "type": "minor"
+    }
+  ],
+  "packageName": "@rushstack/reporter",
+  "email": "TheLarkInn@users.noreply.github.com"
+}

common/changes/@rushstack/rush-reporter/docs-rush-reporter-overhaul-spec_2026-07-15-01-30-02.json

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+{
+  "changes": [
+    {
+      "packageName": "@rushstack/reporter",
+      "comment": "Add OperationStreamEmitter and grouping helpers that replace StreamCollator with a raw, uncollated operation event stream, letting reporters own grouping and problem matchers consume the source stream",
+      "type": "minor"
+    }
+  ],
+  "packageName": "@rushstack/reporter",
+  "email": "TheLarkInn@users.noreply.github.com"
+}

common/changes/@rushstack/rush-reporter/docs-rush-reporter-overhaul-spec_2026-07-15-01-36-33.json

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+{
+  "changes": [
+    {
+      "packageName": "@rushstack/reporter",
+      "comment": "Add problem matchers that recover linked diagnostics from preserved external output: ANSI normalization, a tool- and version-scoped registry with default-enablement gating, and a runner with line reassembly, evidence preservation, and duplicate caps",
+      "type": "minor"
+    }
+  ],
+  "packageName": "@rushstack/reporter",
+  "email": "TheLarkInn@users.noreply.github.com"
+}

common/changes/@rushstack/rush-reporter/docs-rush-reporter-overhaul-spec_2026-07-15-01-40-55.json

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+{
+  "changes": [
+    {
+      "packageName": "@rushstack/reporter",
+      "comment": "Add the legacy error bridge that correlates AlreadyReportedError sentinels with emitted diagnostics and suppresses duplicate rendering, and deprecate AlreadyReportedError to prohibit new usage",
+      "type": "minor"
+    }
+  ],
+  "packageName": "@rushstack/reporter",
+  "email": "TheLarkInn@users.noreply.github.com"
+}