refactor: apply repository naming contract

Apply the accepted pre-release package, service, type, directory, and role renames as one repository-wide change.

packages/mcp/mcp-client/src/tools.ts

@@ -1,5 +1,5 @@
 /**
- * Tool bridge: discovers MCP tools, registers them on the harness ToolRegistry
+ * Tool bridge: discovers MCP tools, registers them on the harness ToolRuntime
  * under deterministic server-qualified public names, and handles re-sync when
  * the server's tool list changes.
  *
@@ -91,7 +91,7 @@ function callToolUncached(
  *
  * @param serverName - Stable local namespace from plugin config.
  * @param rawName - The MCP server's own tool name.
- * @returns The globally unique, model-facing ToolRegistry name.
+ * @returns The globally unique, model-facing ToolRuntime name.
  */
 export function publicToolName(serverName: string, rawName: string): string {
   const joined = `mcp__${serverName}__${rawName}`
@@ -102,7 +102,7 @@ export function publicToolName(serverName: string, rawName: string): string {
 }
 
 /**
- * Sync the MCP server's tool list into the harness ToolRegistry.
+ * Sync the MCP server's tool list into the harness ToolRuntime.
  *
  * Two phases keep the swap safe:
  *
@@ -223,7 +223,7 @@ function createOutput(rawName: string, structuredSchema: JsonSchemaNode | undefi
  * per-page schema cache from pre-validating a different contract.
  *
  * When the MCP server returns `isError: true`, the executor throws so that
- * the ToolRegistry's catch path produces an `isError` result for the model.
+ * the ToolRuntime's catch path produces an `isError` result for the model.
  */
 function createExecutor(
   client: Client,
@@ -263,7 +263,7 @@ function createExecutor(
     const content = result.content as unknown as JsonValue[]
     const text = extractText(content, rawName)
 
-    // MCP isError → throw so ToolRegistry produces an isError result for the model.
+    // MCP isError → throw so ToolRuntime produces an isError result for the model.
     if (result.isError === true) {
       throw new Error(text)
     }

packages/mcp/mcp-client/tests/apply.spec.ts

@@ -5,7 +5,7 @@
 import { describe, expect, it, vi, beforeEach } from 'vitest'
 import { Context } from '@deepseek-ai/cordis'
 import SystemPrompt from '@deepseek-ai/dsh-system-prompt'
-import ToolRegistry from '@deepseek-ai/dsh-tools'
+import ToolRuntime from '@deepseek-ai/dsh-tools'
 import type { Config } from '@deepseek-ai/dsh-mcp-client'
 
 // ---- Mock MCP SDK ----
@@ -61,7 +61,7 @@ import { apply, name, inject, Config as ConfigSchema } from '@deepseek-ai/dsh-mc
 async function mountRegistry(): Promise<Context> {
   const ctx = new Context()
   await ctx.plugin(SystemPrompt)
-  await ctx.plugin(ToolRegistry)
+  await ctx.plugin(ToolRuntime)
   return ctx
 }
 
@@ -211,7 +211,7 @@ describe('apply (plugin lifecycle)', () => {
   it('releases the serverName reservation on dispose', async () => {
     const first = new Context()
     await first.plugin(SystemPrompt)
-    await first.plugin(ToolRegistry)
+    await first.plugin(ToolRuntime)
     await apply(first, stdioConfig)
 
     await first.fiber.dispose()
@@ -221,7 +221,7 @@ describe('apply (plugin lifecycle)', () => {
     // and the disposed instance no longer holds the reservation on its root.
     const second = new Context()
     await second.plugin(SystemPrompt)
-    await second.plugin(ToolRegistry)
+    await second.plugin(ToolRuntime)
     await expect(apply(second, stdioConfig)).resolves.toBeUndefined()
     await second.fiber.dispose()
   })

packages/mcp/mcp-client/tests/mcp-client.e2e.ts

@@ -20,7 +20,7 @@ import { StreamableHTTPServerTransport } from '@modelcontextprotocol/sdk/server/
 import { z } from 'zod'
 import type { Transport } from '@modelcontextprotocol/sdk/shared/transport.js'
 import SystemPrompt from '@deepseek-ai/dsh-system-prompt'
-import ToolRegistry from '@deepseek-ai/dsh-tools'
+import ToolRuntime from '@deepseek-ai/dsh-tools'
 import { CallId } from '@deepseek-ai/dsh-llm'
 import { apply } from '@deepseek-ai/dsh-mcp-client/src/index.ts'
 import { publicToolName } from '@deepseek-ai/dsh-mcp-client/src/tools.ts'
@@ -39,7 +39,7 @@ const localBin = join(packageDir, 'node_modules', '.bin')
 async function mountRegistry(): Promise<Context> {
   const ctx = new Context()
   await ctx.plugin(SystemPrompt)
-  await ctx.plugin(ToolRegistry)
+  await ctx.plugin(ToolRuntime)
   return ctx
 }
 

packages/mcp/mcp-client/tests/mcp-client.spec.ts

@@ -4,7 +4,7 @@ import { InMemoryTransport } from '@modelcontextprotocol/sdk/inMemory.js'
 import { Context } from '@deepseek-ai/cordis'
 import { CallId } from '@deepseek-ai/dsh-llm'
 import SystemPrompt from '@deepseek-ai/dsh-system-prompt'
-import ToolRegistry, { type JsonValue } from '@deepseek-ai/dsh-tools'
+import ToolRuntime, { type JsonValue } from '@deepseek-ai/dsh-tools'
 import { publicToolName, syncTools, type ToolBridgeOptions } from '@deepseek-ai/dsh-mcp-client/src/tools.ts'
 import { createTransport } from '@deepseek-ai/dsh-mcp-client/src/transport.ts'
 import type { Config } from '@deepseek-ai/dsh-mcp-client'
@@ -59,7 +59,7 @@ function createMockClient(tools: MockTool[], callResult: MockCallResult = { cont
 async function mountRegistry(): Promise<Context> {
   const ctx = new Context()
   await ctx.plugin(SystemPrompt)
-  await ctx.plugin(ToolRegistry)
+  await ctx.plugin(ToolRuntime)
   return ctx
 }
 

packages/mcp/mcp-client/tests/reconnect.spec.ts

@@ -7,7 +7,7 @@
 import { describe, expect, it, vi, beforeEach } from 'vitest'
 import { Context } from '@deepseek-ai/cordis'
 import SystemPrompt from '@deepseek-ai/dsh-system-prompt'
-import ToolRegistry from '@deepseek-ai/dsh-tools'
+import ToolRuntime from '@deepseek-ai/dsh-tools'
 import { CallId } from '@deepseek-ai/dsh-llm'
 import type { Config } from '@deepseek-ai/dsh-mcp-client'
 
@@ -68,7 +68,7 @@ const testToolSignal = new AbortController().signal
 async function mountRegistry(): Promise<Context> {
   const ctx = new Context()
   await ctx.plugin(SystemPrompt)
-  await ctx.plugin(ToolRegistry)
+  await ctx.plugin(ToolRuntime)
   return ctx
 }
 

packages/mcp/mcp-client/tsconfig.json

@@ -25,7 +25,7 @@
       "path": "../../subprocess/subprocess"
     },
     {
-      "path": "../../support/invariants"
+      "path": "../../runtime-diagnostics/invariants"
     },
     {
       "path": "../../util/timeout"