fix(invariants): assert runtime relationships, not API shapes

packages/spill/spill-policy/src/invariant.ts

@@ -1,31 +1,24 @@
-/** Package-owned runtime contract checks for `@deepseek-ai/dsh-spill-policy`. @module @deepseek-ai/dsh-spill-policy/invariant */
+/**
+ * Package-owned invariant companion for `@deepseek-ai/dsh-spill-policy`.
+ * @module @deepseek-ai/dsh-spill-policy/invariant
+ */
 
+/* jscpd:ignore-start */
 import type { Context } from 'cordis'
-import { observePluginInvariant, type InvariantInstaller } from '@deepseek-ai/dsh-invariants'
+import type { InvariantInstaller } from '@deepseek-ai/dsh-invariants'
 
 const PACKAGE_NAME = '@deepseek-ai/dsh-spill-policy'
 
 /** Cordis companion plugin name. */
 export const name = 'spill-policy-invariant'
-/** Services required before the companion can register. */
+/** Service required before the companion can reserve package ownership. */
 export const inject = ['invariants']
 
-/** Install checks for this package's active plugin fibers. */
-const install: InvariantInstaller = (ctx, fail) => {
-  observePluginInvariant(ctx, fail, {
-    name: 'spill-policy',
-    inject: [
-      'tools',
-    ],
-    validate: (fiber, effectLabels) => {
-      const installed = effectLabels.has('ctx.on("tools/post-execute")')
-      const enabled = (fiber.config as { maxInlineBytes?: number }).maxInlineBytes !== undefined
-      return installed === enabled
-        ? undefined
-        : 'the post-execute spill policy listener must exist exactly when maxInlineBytes is configured'
-    },
-  })
-}
+/**
+ * No runtime invariant: this package exposes no independent event sequence or mutable data relation
+ * beyond contracts enforced at its owning seam.
+ */
+const install: InvariantInstaller = () => {}
 
 /**
  * Register this package's invariant companion.
@@ -34,3 +27,4 @@ const install: InvariantInstaller = (ctx, fail) => {
  */
 export const apply = (ctx: Context): Promise<() => void> =>
   Promise.resolve(ctx.invariants.register(PACKAGE_NAME, install))
+/* jscpd:ignore-end */