refactor: resolve channel env vars from plugin manifests

src/plugins/manifest-registry.test.ts

@@ -417,6 +417,28 @@ describe("loadPluginManifestRegistry", () => {
     ]);
   });
 
+  it("preserves channel env metadata from plugin manifests", () => {
+    const dir = makeTempDir();
+    writeManifest(dir, {
+      id: "slack",
+      channels: ["slack"],
+      channelEnvVars: {
+        slack: ["SLACK_BOT_TOKEN", "SLACK_APP_TOKEN", "SLACK_USER_TOKEN"],
+      },
+      configSchema: { type: "object" },
+    });
+
+    const registry = loadSingleCandidateRegistry({
+      idHint: "slack",
+      rootDir: dir,
+      origin: "bundled",
+    });
+
+    expect(registry.plugins[0]?.channelEnvVars).toEqual({
+      slack: ["SLACK_BOT_TOKEN", "SLACK_APP_TOKEN", "SLACK_USER_TOKEN"],
+    });
+  });
+
   it("preserves channel config metadata from plugin manifests", () => {
     const dir = makeTempDir();
     writeManifest(dir, {

src/plugins/manifest-registry.ts

@@ -73,6 +73,7 @@ export type PluginManifestRecord = {
   modelSupport?: PluginManifestModelSupport;
   cliBackends: string[];
   providerAuthEnvVars?: Record<string, string[]>;
+  channelEnvVars?: Record<string, string[]>;
   providerAuthChoices?: PluginManifest["providerAuthChoices"];
   skills: string[];
   settingsFiles?: string[];
@@ -292,6 +293,7 @@ function buildRecord(params: {
     modelSupport: params.manifest.modelSupport,
     cliBackends: params.manifest.cliBackends ?? [],
     providerAuthEnvVars: params.manifest.providerAuthEnvVars,
+    channelEnvVars: params.manifest.channelEnvVars,
     providerAuthChoices: params.manifest.providerAuthChoices,
     skills: params.manifest.skills ?? [],
     settingsFiles: [],

src/plugins/manifest.ts

@@ -89,6 +89,8 @@ export type PluginManifest = {
   cliBackends?: string[];
   /** Cheap provider-auth env lookup without booting plugin runtime. */
   providerAuthEnvVars?: Record<string, string[]>;
+  /** Cheap channel env lookup without booting plugin runtime. */
+  channelEnvVars?: Record<string, string[]>;
   /**
    * Cheap onboarding/auth-choice metadata used by config validation, CLI help,
    * and non-runtime auth-choice routing before provider runtime loads.
@@ -500,6 +502,7 @@ export function loadPluginManifest(
   const modelSupport = normalizeManifestModelSupport(raw.modelSupport);
   const cliBackends = normalizeStringList(raw.cliBackends);
   const providerAuthEnvVars = normalizeStringListRecord(raw.providerAuthEnvVars);
+  const channelEnvVars = normalizeStringListRecord(raw.channelEnvVars);
   const providerAuthChoices = normalizeProviderAuthChoices(raw.providerAuthChoices);
   const skills = normalizeStringList(raw.skills);
   const contracts = normalizeManifestContracts(raw.contracts);
@@ -527,6 +530,7 @@ export function loadPluginManifest(
       modelSupport,
       cliBackends,
       providerAuthEnvVars,
+      channelEnvVars,
       providerAuthChoices,
       skills,
       name,