Force agents to act so weak models can't complete a no-op

The whole premise is cheap models + skills + a team — so the control plane,
not the model, must guarantee action. Every adapter hardcoded
tool_choice:"auto", letting a weak model answer the kickoff with prose and
"succeed" having hired no one, delegated nothing, and said nothing.

Now the agent loop compels a tool call on the opening turn (tool_choice
plumbed through every backend: OpenAI/Responses/Chat, Anthropic, Codex,
Copilot, Azure, Custom, Gemini ANY mode, Bedrock any). If the forced turn
still yields no tool call, the run fails loudly instead of recording a
deceptive success — surfacing the problem (let it crash) rather than a
silent dead company. After it has acted, the model chooses freely.

Tested: a stub that rambles on "auto" but acts when forced now posts a
kickoff message; a prose-only first turn fails the run.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

AgentCompany-New/src/main/services/provider-response-runner.ts

@@ -12,7 +12,7 @@ import type { ProviderRateLimitRegistry } from "./provider-rate-limit-registry";
 import type { ProviderRequestStore } from "./provider-request-store";
 import type { ProviderResponseObserver } from "./provider-response-observer";
 import { hashPrompt, readProviderResponseId, requireStreamText } from "./provider-response-utils";
-import { type AgentTurnMessage, type AgentTurnResult, type ToolDefinition, type ToolTurnFn } from "./provider-tool-turn";
+import { type AgentTurnMessage, type AgentTurnResult, type ToolChoice, type ToolDefinition, type ToolTurnFn } from "./provider-tool-turn";
 import { selectToolTurn, supportsToolTurn } from "./provider-tool-turns/router";
 import { resolveTurnCredential } from "./provider-tool-turns/credential-resolver";
 import {
@@ -103,6 +103,7 @@ export class ProviderResponseRunner {
     instructions: string | null;
     messages: AgentTurnMessage[];
     tools: ToolDefinition[];
+    toolChoice?: ToolChoice;
   }): Promise<AgentTurnResult & { requestId: string }> {
     const provider = loadConfiguredProvider(this.deps.db, input.orgId, input.providerId);
     const workspaceId = this.normalizeWorkspaceId(input.orgId, input.workspaceId ?? null);
@@ -128,7 +129,7 @@ export class ProviderResponseRunner {
     });
     const startedAt = Date.now();
     try {
-      const result = await turn({ credential, model, instructions: input.instructions, messages: input.messages, tools: input.tools });
+      const result = await turn({ credential, model, instructions: input.instructions, messages: input.messages, tools: input.tools, toolChoice: input.toolChoice });
       this.deps.requestStore.markSucceeded({
         orgId: input.orgId,
         requestId,