From ef332cfd83e505ef4d2ad21e201a076adbe5c0ec Mon Sep 17 00:00:00 2001
From: James Rich <2199651+jamesarich@users.noreply.github.com>
Date: Wed, 22 Jul 2026 18:35:10 -0500
Subject: [PATCH] ci: gate Codecov project status on coverage regression

Flips the Codecov project status from informational to a gate (target: auto, 1% threshold) so an overall coverage regression fails the check. The patch status stays advisory to avoid blocking small PRs on patch-coverage noise. The baseline the header comment was waiting for is now established.

Signed-off-by: James Rich <2199651+jamesarich@users.noreply.github.com>
---
 codecov.yml | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/codecov.yml b/codecov.yml
index 818860b..a94d360 100644
--- a/codecov.yml
+++ b/codecov.yml
@@ -1,9 +1,9 @@
 # Codecov configuration — https://docs.codecov.com/docs/codecov-yaml
 #
 # Coverage is measured by Kover on the JVM target only (Kover instruments
-# JVM/Android bytecode; Native/JS/Wasm execution is not counted). Reports are
-# INFORMATIONAL (non-blocking) for now; a koverVerify threshold gate can be
-# added once a baseline is established.
+# JVM/Android bytecode; Native/JS/Wasm execution is not counted). The project
+# status GATES on regression (target: auto, ±1% tolerance); the patch status
+# stays advisory to avoid blocking small PRs.
 coverage:
   precision: 2
   round: down
@@ -11,10 +11,12 @@ coverage:
   status:
     project:
       default:
-        informational: true
+        target: auto         # gate: fail if overall coverage regresses
+        threshold: 1%        # tolerate ≤1% dips (rounding, flaky lines)
+        informational: false
     patch:
       default:
-        informational: true
+        informational: true  # advisory only — don't block small PRs on patch noise
 
 comment:
   layout: "reach, diff, flags"