From 473293a5a5c30d51db9c822b6a4c4da4d7e05615 Mon Sep 17 00:00:00 2001
From: Michael Moffett <michael@caliperforge.com>
Date: Mon, 5 Oct 2026 14:43:36 -0600
Subject: [PATCH 1/2] PayKit interface drifts

Add `Gate::accepts(Protocol $p): bool` to the PHP SDK. This is the PHP `Gate::accepts` item from issue .

The spec (`docs/paykit-interface.md:154-158`) names `accepts(protocol)` as a Gate method in every SDK, and PHP does not have it.
---
 docs/paykit-interface.md |  1 -
 php/src/Gate.php         |  9 +++++++++
 php/tests/GateTest.php   | 25 +++++++++++++++++++++++++
 3 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/docs/paykit-interface.md b/docs/paykit-interface.md
index a7d433c31..fbe769ded 100644
--- a/docs/paykit-interface.md
+++ b/docs/paykit-interface.md
@@ -293,7 +293,6 @@ conformant.
   functions over the request attribute) so non-middleware code paths exist,
   matching Ruby and Python.
 - Add `Config::fromEnv()`.
-- Add `accepts(Protocol $p): bool` on `Gate`.
 - Add `payer` to `Payment`.
 - Simplify `MppConfig::resolveExpiresIn` (plain int + dedicated
   `EXPIRES_NEVER = 0` constant).
diff --git a/php/src/Gate.php b/php/src/Gate.php
index e57eb9391..91d6345bd 100644
--- a/php/src/Gate.php
+++ b/php/src/Gate.php
@@ -127,6 +127,15 @@ public function hasFees(): bool
         return count($this->fees) > 0;
     }
 
+    /** Whether this gate admits `$p`; a null `accept` defers to Config. */
+    public function accepts(Protocol $p): bool
+    {
+        if ($p === Protocol::X402 && $this->hasFees()) {
+            return false;
+        }
+        return $this->accept === null || in_array($p, $this->accept, true);
+    }
+
     private static function buildFee(int|string $recipient, Price $price, string $kind, Price $amount): Fee
     {
         if (!is_string($recipient) || $recipient === '') {
diff --git a/php/tests/GateTest.php b/php/tests/GateTest.php
index 47e08b03d..1ea92eec8 100644
--- a/php/tests/GateTest.php
+++ b/php/tests/GateTest.php
@@ -75,6 +75,31 @@ public function testExplicitX402AcceptOnFeeGateRejected(): void
         );
     }
 
+    public function testAcceptsBothProtocolsWhenAcceptInherited(): void
+    {
+        $g = new Gate(amount: Price::usd('1.00'));
+        $this->assertTrue($g->accepts(Protocol::X402));
+        $this->assertTrue($g->accepts(Protocol::Mpp));
+    }
+
+    public function testAcceptsHonorsExplicitAllowlist(): void
+    {
+        $g = new Gate(amount: Price::usd('1.00'), accept: [Protocol::Mpp]);
+        $this->assertFalse($g->accepts(Protocol::X402));
+        $this->assertTrue($g->accepts(Protocol::Mpp));
+    }
+
+    public function testAcceptsRefusesX402OnFeeGate(): void
+    {
+        $g = new Gate(
+            amount: Price::usd('1.00'),
+            payTo: 'SELLER',
+            feeWithin: ['PLATFORM' => Price::usd('0.10')],
+        );
+        $this->assertFalse($g->accepts(Protocol::X402));
+        $this->assertTrue($g->accepts(Protocol::Mpp));
+    }
+
     public function testPayoutNullForUnaddressedRecipient(): void
     {
         $g = new Gate(amount: Price::usd('1.00'), payTo: 'SELLER');

From 545dc054de881916e2cffc5f60a1489d46019006 Mon Sep 17 00:00:00 2001
From: caliperforge <cf@caliperforge.dev>
Date: Mon, 5 Oct 2026 14:43:37 -0600
Subject: [PATCH 2/2] greptile.json: review on request only

---
 greptile.json | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 greptile.json

diff --git a/greptile.json b/greptile.json
new file mode 100644
index 000000000..3e653b565
--- /dev/null
+++ b/greptile.json
@@ -0,0 +1 @@
+{"autoReview": []}