refactor(agents): dedupe config and truncation guards

src/shared/config-eval.ts

@@ -48,14 +48,16 @@ export type RuntimeRequires = {
   config?: string[];
 };
 
-export function evaluateRuntimeRequires(params: {
+type RuntimeRequirementEvalParams = {
   requires?: RuntimeRequires;
   hasBin: (bin: string) => boolean;
   hasAnyRemoteBin?: (bins: string[]) => boolean;
   hasRemoteBin?: (bin: string) => boolean;
   hasEnv: (envName: string) => boolean;
   isConfigPathTruthy: (pathStr: string) => boolean;
-}): boolean {
+};
+
+export function evaluateRuntimeRequires(params: RuntimeRequirementEvalParams): boolean {
   const requires = params.requires;
   if (!requires) {
     return true;
@@ -103,6 +105,35 @@ export function evaluateRuntimeRequires(params: {
   return true;
 }
 
+export function evaluateRuntimeEligibility(
+  params: {
+    os?: string[];
+    remotePlatforms?: string[];
+    always?: boolean;
+  } & RuntimeRequirementEvalParams,
+): boolean {
+  const osList = params.os ?? [];
+  const remotePlatforms = params.remotePlatforms ?? [];
+  if (
+    osList.length > 0 &&
+    !osList.includes(resolveRuntimePlatform()) &&
+    !remotePlatforms.some((platform) => osList.includes(platform))
+  ) {
+    return false;
+  }
+  if (params.always === true) {
+    return true;
+  }
+  return evaluateRuntimeRequires({
+    requires: params.requires,
+    hasBin: params.hasBin,
+    hasRemoteBin: params.hasRemoteBin,
+    hasAnyRemoteBin: params.hasAnyRemoteBin,
+    hasEnv: params.hasEnv,
+    isConfigPathTruthy: params.isConfigPathTruthy,
+  });
+}
+
 export function resolveRuntimePlatform(): string {
   return process.platform;
 }