From 7bdceb8e0e3d8edbce43a2d4fd8dee5ed3fa4e86 Mon Sep 17 00:00:00 2001
From: Jesse Wright <63333554+jeswr@users.noreply.github.com>
Date: Thu, 23 Apr 2026 02:23:17 +0100
Subject: [PATCH 1/4] feat(agent): add oidcIssuers getter for solid:oidcIssuer

Mirrors the existing pimStorage / solidStorage / storageUrls
getters. Solid-OIDC mandates solid:oidcIssuer for issuer
discovery; downstream consumers (reactive-fetch, the ODI Solid
browser extension) currently subclass Agent to add this same
getter.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
---
 src/webid/Agent.ts      |  4 ++++
 test/unit/agent.test.ts | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 37 insertions(+)
 create mode 100644 test/unit/agent.test.ts

diff --git a/src/webid/Agent.ts b/src/webid/Agent.ts
index 82267f3..0dabc6c 100644
--- a/src/webid/Agent.ts
+++ b/src/webid/Agent.ts
@@ -63,6 +63,10 @@ export class Agent extends TermWrapper {
         return SetFrom.subjectPredicate(this, SOLID.storage, NamedNodeAs.string, NamedNodeFrom.string)
     }
 
+    get oidcIssuers(): Set<string> {
+        return SetFrom.subjectPredicate(this, SOLID.oidcIssuer, NamedNodeAs.string, NamedNodeFrom.string)
+    }
+
     get email(): string | null {
         return this.hasEmail?.value ?? null
     }
diff --git a/test/unit/agent.test.ts b/test/unit/agent.test.ts
new file mode 100644
index 0000000..b018b4c
--- /dev/null
+++ b/test/unit/agent.test.ts
@@ -0,0 +1,33 @@
+import { DataFactory, Parser, Store } from "n3"
+import assert from "node:assert"
+import { describe, it } from "node:test"
+
+import { Agent } from "@solid/object"
+
+describe("Agent oidcIssuers", () => {
+
+    const sampleRDF = `
+@prefix solid: <http://www.w3.org/ns/solid/terms#> .
+@prefix foaf: <http://xmlns.com/foaf/0.1/> .
+
+<https://example.org/profile/card#me>
+    a foaf:Person ;
+    solid:oidcIssuer <https://idp.example.org/> , <https://idp.other.example/> .
+`;
+
+    it("returns the set of solid:oidcIssuer values declared on the WebID", () => {
+        const store = new Store()
+        store.addQuads(new Parser().parse(sampleRDF))
+
+        const agent = new Agent(
+            DataFactory.namedNode("https://example.org/profile/card#me"),
+            store,
+            DataFactory
+        )
+
+        assert.deepStrictEqual(
+            new Set(agent.oidcIssuers),
+            new Set(["https://idp.example.org/", "https://idp.other.example/"])
+        )
+    })
+})

From 1e19297120baa2007aa319249694701c80b75af0 Mon Sep 17 00:00:00 2001
From: Jesse Wright <63333554+jeswr@users.noreply.github.com>
Date: Thu, 23 Apr 2026 10:01:27 +0100
Subject: [PATCH 2/4] Apply suggestion from @langsamu

Co-authored-by: Samu Lang <langsamu@users.noreply.github.com>
---
 src/webid/Agent.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/webid/Agent.ts b/src/webid/Agent.ts
index 0dabc6c..6429989 100644
--- a/src/webid/Agent.ts
+++ b/src/webid/Agent.ts
@@ -63,7 +63,7 @@ export class Agent extends TermWrapper {
         return SetFrom.subjectPredicate(this, SOLID.storage, NamedNodeAs.string, NamedNodeFrom.string)
     }
 
-    get oidcIssuers(): Set<string> {
+    get oidcIssuer(): Set<string> {
         return SetFrom.subjectPredicate(this, SOLID.oidcIssuer, NamedNodeAs.string, NamedNodeFrom.string)
     }
 

From 8a8f0469f227257d3a428cfefa75fbb3498b9ffa Mon Sep 17 00:00:00 2001
From: Jesse Wright <63333554+jeswr@users.noreply.github.com>
Date: Thu, 23 Apr 2026 12:02:52 +0100
Subject: [PATCH 3/4] Update test/unit/agent.test.ts

Co-authored-by: Samu Lang <langsamu@users.noreply.github.com>
---
 test/unit/agent.test.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/unit/agent.test.ts b/test/unit/agent.test.ts
index b018b4c..44171ae 100644
--- a/test/unit/agent.test.ts
+++ b/test/unit/agent.test.ts
@@ -26,7 +26,7 @@ describe("Agent oidcIssuers", () => {
         )
 
         assert.deepStrictEqual(
-            new Set(agent.oidcIssuers),
+            new Set(agent.oidcIssuer),
             new Set(["https://idp.example.org/", "https://idp.other.example/"])
         )
     })

From 4e4946728a51980f885bcefdddf235618bdde03c Mon Sep 17 00:00:00 2001
From: Jesse Wright <63333554+jeswr@users.noreply.github.com>
Date: Thu, 23 Apr 2026 12:03:00 +0100
Subject: [PATCH 4/4] Update test/unit/agent.test.ts

Co-authored-by: Samu Lang <langsamu@users.noreply.github.com>
---
 test/unit/agent.test.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/unit/agent.test.ts b/test/unit/agent.test.ts
index 44171ae..befde40 100644
--- a/test/unit/agent.test.ts
+++ b/test/unit/agent.test.ts
@@ -4,7 +4,7 @@ import { describe, it } from "node:test"
 
 import { Agent } from "@solid/object"
 
-describe("Agent oidcIssuers", () => {
+describe("Agent oidcIssuer", () => {
 
     const sampleRDF = `
 @prefix solid: <http://www.w3.org/ns/solid/terms#> .