diff --git a/src/main/prompt-builder/api-docs/approvals.en.md b/src/main/prompt-builder/api-docs/approvals.en.md
index bc74059c..0fc392bb 100644
--- a/src/main/prompt-builder/api-docs/approvals.en.md
+++ b/src/main/prompt-builder/api-docs/approvals.en.md
@@ -1,7 +1,7 @@
 ### Request an Approval (when you need human/executive permission)
 POST /api/companies/{{companyId}}/approvals
 Body: {
-  "type": "secret_access|hire_agent|approve_ceo_strategy|dangerous_command",
+  "type": "{{approvalTypes}}",
   "relatedTaskId": "{taskId — what task is this for}",
   "requestedByAgentId": "{{agentId}}",
   "payloadSummary": "Clear description of what you need and why",
@@ -10,10 +10,10 @@ Body: {
   "workProductIds": ["{workProductUuid}"]
 }
 Approval types:
-  - secret_access: Need API keys, credentials, or account access
-  - hire_agent: Proposing a new team member
-  - approve_ceo_strategy: CEO submitting org strategy for Board review
-  - dangerous_command: Irreversible action that needs human sign-off
+{{approvalTypeList}}
+
+Co-Founder mandatory review types:
+{{cofounderMandatoryApprovalTypes}}
 
 Attaching artifacts:
   - `documentIds` — UUIDs of existing company documents. The board inspector
diff --git a/src/main/prompt-builder/api-section.ts b/src/main/prompt-builder/api-section.ts
index baedb628..ca68218b 100644
--- a/src/main/prompt-builder/api-section.ts
+++ b/src/main/prompt-builder/api-section.ts
@@ -1,5 +1,7 @@
 import type { PromptContext } from "./index";
 import { buildSocialSection } from "./api-endpoints";
+import { approvalTypeEnum, type ApprovalType } from "@shared/types";
+import { COFOUNDER_MANDATORY_APPROVAL_TYPES } from "../execution-policy";
 
 import headerEn from "./api-docs/header.en.md?raw";
 import agentControlEn from "./api-docs/agent-control.en.md?raw";
@@ -60,6 +62,40 @@ const SECTIONS_BY_ROLE: Record<ApiAudience, string[]> = {
   ],
 };
 
+const APPROVAL_TYPE_DESCRIPTIONS: Record<ApprovalType, string> = {
+  hire_agent: "Propose a new team member",
+  approve_ceo_strategy: "CEO submits org strategy for Board review",
+  dangerous_command: "Irreversible command or destructive operation",
+  secret_access: "Need API keys, credentials, or account access",
+  budget_request: "Request budget for planned spend",
+  promotion: "Propose role or seniority advancement",
+  termination: "Propose ending an agent's role",
+  vendor_approval: "Approve vendor, SaaS, or service purchase",
+  document_review: "Request review of an existing document",
+  production_deploy: "Approve deployment to production",
+  incident_escalation: "Escalate a critical incident for human decision",
+  social_post: "Approve a social media post before publishing",
+  deliverable_review: "Approve a completed deliverable or spec",
+  budget_override: "Override a budget gate for urgent work",
+  plan_review: "Review a plan before execution",
+  scope_review: "Review proposed scope before work proceeds",
+  draft_review: "Review a drafted document or artifact",
+  strategy_review: "Review strategy, project brief, or proposal",
+  exception_review: "Review an exception to normal policy",
+};
+
+function renderApprovalTypeList(): string {
+  return approvalTypeEnum.options
+    .map((type) => `  - ${type}: ${APPROVAL_TYPE_DESCRIPTIONS[type]}`)
+    .join("\n");
+}
+
+function renderCofounderMandatoryApprovalTypes(): string {
+  return COFOUNDER_MANDATORY_APPROVAL_TYPES
+    .map((type) => `  - ${type}`)
+    .join("\n");
+}
+
 function render(template: string, ctx: PromptContext): string {
   const connectorIds = ctx.allConnectors && ctx.allConnectors.length > 0
     ? ctx.allConnectors.map((c) => c.id).join("|")
@@ -69,7 +105,10 @@ function render(template: string, ctx: PromptContext): string {
     .replace(/\{\{companyId\}\}/g, ctx.agent.companyId)
     .replace(/\{\{agentId\}\}/g, ctx.agent.id)
     .replace(/\{\{runId\}\}/g, ctx.runId)
-    .replace(/\{\{connectorIds\}\}/g, connectorIds);
+    .replace(/\{\{connectorIds\}\}/g, connectorIds)
+    .replace(/\{\{approvalTypes\}\}/g, approvalTypeEnum.options.join("|"))
+    .replace(/\{\{approvalTypeList\}\}/g, renderApprovalTypeList())
+    .replace(/\{\{cofounderMandatoryApprovalTypes\}\}/g, renderCofounderMandatoryApprovalTypes());
 }
 
 export function buildAPISection(ctx: PromptContext, audience: ApiAudience): string {
diff --git a/tests/eval/approval-api-docs-contract.test.ts b/tests/eval/approval-api-docs-contract.test.ts
new file mode 100644
index 00000000..2973a9a0
--- /dev/null
+++ b/tests/eval/approval-api-docs-contract.test.ts
@@ -0,0 +1,23 @@
+import { describe, expect, it } from "vitest";
+import { approvalTypeEnum } from "../../src/shared/types/enums";
+import { COFOUNDER_MANDATORY_APPROVAL_TYPES } from "../../src/main/execution-policy";
+import { EVAL_SCENARIO_MATRIX, buildMatrixPrompt } from "./scenario-contract.js";
+
+describe("approval API prompt contract", () => {
+  it("renders every schema approval type and every Co-Founder mandatory review type", () => {
+    const managerScenario = EVAL_SCENARIO_MATRIX.find((entry) => entry.audience === "manager");
+    if (!managerScenario) {
+      throw new Error("Expected at least one manager eval scenario.");
+    }
+
+    const prompt = buildMatrixPrompt(managerScenario);
+
+    for (const approvalType of approvalTypeEnum.options) {
+      expect(prompt).toContain(approvalType);
+    }
+    expect(prompt).toContain("Co-Founder mandatory review types:");
+    for (const approvalType of COFOUNDER_MANDATORY_APPROVAL_TYPES) {
+      expect(prompt).toContain(`- ${approvalType}`);
+    }
+  });
+});