perf(sdk): load Claude CLI identity from a narrow plugin artifact

steipete · steipete · commit a92c4df1abcd · 2026-07-17T00:21:34.000-07:00
src/plugin-sdk/anthropic-cli.ts snapshots CLAUDE_CLI_BACKEND_ID at module
scope through the sync facade loader, which jiti-evaluates the full
anthropic api.js barrel on source checkouts: 130.86s of self time per
cold worker on CI (Testbox import profile), silently stalling every job
whose graph reaches cli-runner/prepare.ts. A narrow cli-api.js artifact
carries the two static facts; Testbox proof: the reliability+helpers
agents-core pair drops from 157.6s to 14.3s.
diff --git a/config/knip.config.ts b/config/knip.config.ts
@@ -549,7 +549,10 @@ const config = {
     },
     [`${BUNDLED_PLUGIN_ROOT_DIR}/amazon-bedrock-mantle`]: bundledPluginWorkspace(),
     [`${BUNDLED_PLUGIN_ROOT_DIR}/amazon-bedrock`]: bundledPluginWorkspace(),
-    [`${BUNDLED_PLUGIN_ROOT_DIR}/anthropic`]: bundledPluginWorkspace(),
+    [`${BUNDLED_PLUGIN_ROOT_DIR}/anthropic`]: bundledPluginWorkspace([
+      // The plugin-SDK anthropic-cli facade resolves this shipped artifact by basename.
+      "cli-api.ts!",
+    ]),
     [`${BUNDLED_PLUGIN_ROOT_DIR}/anthropic-vertex`]: bundledPluginWorkspace(),
     [`${BUNDLED_PLUGIN_ROOT_DIR}/acpx`]: bundledPluginWorkspace([
       // Copied as executable runtime internals by the package artifact manifest.
diff --git a/extensions/anthropic/cli-api.ts b/extensions/anthropic/cli-api.ts
@@ -0,0 +1,5 @@
+// Lightweight Claude CLI identity artifact for core facades. The full api.js
+// barrel drags the whole plugin graph through jiti on source checkouts
+// (~130s per cold worker on CI); keep this surface to static facts only.
+export { CLAUDE_CLI_BACKEND_ID } from "./cli-constants.js";
+export { isClaudeCliProvider } from "./cli-shared.js";
diff --git a/src/plugin-sdk/anthropic-cli.ts b/src/plugin-sdk/anthropic-cli.ts
@@ -7,9 +7,11 @@ type FacadeModule = {
 };
 
 function loadFacadeModule(): FacadeModule {
+  // cli-api.js, not api.js: this facade evaluates at module scope, and the
+  // full barrel costs ~130s per cold jiti worker on source checkouts.
   return loadBundledPluginPublicSurfaceModuleSync<FacadeModule>({
     dirName: "anthropic",
-    artifactBasename: "api.js",
+    artifactBasename: "cli-api.js",
   });
 }
 /** Anthropic plugin backend id for Claude CLI provider detection. */
