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

packages/code-runtime/code-runtime/src/invariant.ts

@@ -1,29 +1,24 @@
-/** Package-owned runtime contract checks for `@deepseek-ai/dsh-code-runtime`. @module @deepseek-ai/dsh-code-runtime/invariant */
+/**
+ * Package-owned invariant companion for `@deepseek-ai/dsh-code-runtime`.
+ * @module @deepseek-ai/dsh-code-runtime/invariant
+ */
 
+/* jscpd:ignore-start */
 import type { Context } from 'cordis'
-import { observeServiceInvariant, serviceShapeViolation, type InvariantInstaller } from '@deepseek-ai/dsh-invariants'
+import type { InvariantInstaller } from '@deepseek-ai/dsh-invariants'
 
 const PACKAGE_NAME = '@deepseek-ai/dsh-code-runtime'
 
 /** Cordis companion plugin name. */
 export const name = 'code-runtime-invariant'
-/** Services required before the companion can register. */
+/** Service required before the companion can reserve package ownership. */
 export const inject = ['invariants']
 
-/** Validate every implementation bound to this package's service seam. */
-const install: InvariantInstaller = (ctx, fail) => {
-  observeServiceInvariant(ctx, fail, 'codeRuntime', (value) => {
-    const violation = serviceShapeViolation(value, {
-      methods: ['run'],
-      stringProperties: ['language', 'isolation'],
-    })
-    if (violation !== undefined) return violation
-    const service = value as { language: string; isolation: string }
-    return /^[a-z][a-z0-9-]*$/.test(service.language) && /^[a-z][a-z0-9-]*$/.test(service.isolation)
-      ? undefined
-      : 'code runtime language and isolation must be lowercase identifiers'
-  })
-}
+/**
+ * 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.
@@ -32,3 +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 */

packages/code-runtime/code-runtime/tests/service.spec.ts

@@ -2,7 +2,6 @@ import { describe, expect, it } from 'vitest'
 import { Context } from 'cordis'
 import { CodeRuntime } from '@deepseek-ai/dsh-code-runtime'
 import type { CodeRunRequest, CodeRunResult } from '@deepseek-ai/dsh-code-runtime'
-import { InvariantError } from '@deepseek-ai/dsh-invariants'
 
 /**
  * Minimal concrete runtime: records requests, "executes" by invoking every
@@ -86,24 +85,4 @@ describe('CodeRuntime service seam', () => {
     await expect(ctx.plugin(StubRuntime)).rejects.toThrow(/registered/)
   })
 
-  it.each([
-    [{ language: 'typescript', isolation: 'worker' }, /must expose method "run"/],
-    [{ language: 'TypeScript', isolation: 'worker', run() {} }, /must be lowercase identifiers/],
-  ])('rejects an invalid runtime implementation through the package invariant', async (value, message) => {
-    const ctx = new Context()
-    const invalidRuntime = {
-      name: 'invalid-code-runtime',
-      apply(child: Context) {
-        child.provide('codeRuntime', value as unknown as CodeRuntime)
-      },
-    }
-    let caught: unknown
-    try {
-      await ctx.plugin(invalidRuntime)
-    } catch (error) {
-      caught = error
-    }
-    expect(caught).toBeInstanceOf(InvariantError)
-    expect((caught as Error).message).toMatch(message)
-  })
 })