diff --git a/BLACK_HOUSE_COLLECTIVE.md b/BLACK_HOUSE_COLLECTIVE.md
new file mode 100644
index 000000000..d61ed4ca7
--- /dev/null
+++ b/BLACK_HOUSE_COLLECTIVE.md
@@ -0,0 +1,80 @@
+# Black House Collective
+
+Black House Collective is a **synthetic-range adversary-emulation control-plane design** for CyberStrikeZYRA. It models fleet-scale orchestration without creating a real-world attack swarm.
+
+## Capacity target
+
+| Item | Value |
+| --- | ---: |
+| Logical agents | 7,000,000 |
+| Logical agents per shard | 10,000 |
+| Deterministic shards | 700 |
+| Scheduler complexity | O(shards) |
+| Network actuation from collective | Disabled |
+
+Seven million is a logical capacity target. The scheduler represents agents as deterministic numeric ranges rather than allocating seven million processes, sockets, workers, or agent objects.
+
+## Shard model
+
+For zero-based shard `s` and shard size `10,000`:
+
+- first logical agent = `s * 10,000`
+- last logical agent = `min(first + 9,999, 6,999,999)`
+- shard count = `ceil(7,000,000 / 10,000) = 700`
+
+This makes replay, telemetry aggregation, and capacity testing practical on a development machine.
+
+## Execution boundary
+
+The collective is restricted to an authorized synthetic range. Its scheduler must not perform network operations itself.
+
+Required invariants:
+
+- scope is `synthetic-range`
+- an authorized range identifier is mandatory
+- public-Internet discovery is disabled
+- network actuation is disabled in the collective scheduler
+- credential operations are disabled
+- persistence mechanisms are disabled
+- destructive actions are disabled
+- data exfiltration is disabled
+- traffic flooding is disabled
+
+## Simulation scenarios
+
+The control plane may generate aggregate events for these non-payload scenarios:
+
+1. `surface-map` — synthetic asset/topology coverage.
+2. `control-validation` — verifies policy and authorization boundaries.
+3. `detection-pressure` — produces synthetic detection telemetry.
+4. `containment-drill` — exercises containment state transitions.
+5. `recovery-verification` — validates restoration and recovery workflows.
+
+## Proposed package boundary
+
+```text
+packages/cyberstrike/src/black-house/
+  types.ts
+  policy.ts
+  collective.ts
+  simulation.ts
+  index.ts
+  collective.test.ts
+```
+
+The implementation should remain pure TypeScript with no socket, browser, shell, exploit, credential, persistence, or external-target primitives in this layer.
+
+## Acceptance tests
+
+- 7,000,000 logical agents produce exactly 700 shards at a shard size of 10,000.
+- The final logical agent index is 6,999,999.
+- Agent-to-shard lookup is deterministic.
+- Memory growth is proportional to shard count, not logical-agent count.
+- Any non-synthetic scope is rejected.
+- Missing authorization metadata is rejected.
+- One simulated cycle emits at most one aggregate record per shard per scenario.
+- Every aggregate record states that network actuation is disabled.
+
+## Black House role
+
+Black House consumes the collective as a simulation and observability layer for authorized cyber-range exercises. Existing pentest capabilities in CyberStrikeZYRA remain separately permissioned and are not multiplied into a seven-million-node real-world attack fabric by this component.
diff --git a/packages/cyberstrike/src/black-house/capacity.test.ts b/packages/cyberstrike/src/black-house/capacity.test.ts
new file mode 100644
index 000000000..68bde4dc8
--- /dev/null
+++ b/packages/cyberstrike/src/black-house/capacity.test.ts
@@ -0,0 +1,53 @@
+import { describe, expect, test } from "bun:test"
+import {
+  createCollectiveCapacityPlan,
+  DEFAULT_LOGICAL_AGENTS,
+  DEFAULT_SHARD_SIZE,
+  locateLogicalAgent,
+  virtualAgentId,
+} from "./capacity"
+import { assertBlackHouseAuthorization, BLACK_HOUSE_COLLECTIVE_POLICY, BLACK_HOUSE_SCOPE } from "./policy"
+
+describe("Black House collective capacity", () => {
+  test("represents seven million logical agents in 700 shards", () => {
+    const plan = createCollectiveCapacityPlan()
+
+    expect(plan.logicalAgents).toBe(DEFAULT_LOGICAL_AGENTS)
+    expect(plan.shardSize).toBe(DEFAULT_SHARD_SIZE)
+    expect(plan.shardCount).toBe(700)
+    expect(plan.shards).toHaveLength(700)
+    expect(plan.shards[0]).toEqual({
+      shardId: "bh-0000",
+      firstAgent: 0,
+      lastAgent: 9_999,
+      logicalAgents: 10_000,
+    })
+    expect(plan.shards[699]?.lastAgent).toBe(6_999_999)
+  })
+
+  test("locates logical agents without allocating per-agent objects", () => {
+    const plan = createCollectiveCapacityPlan()
+
+    expect(locateLogicalAgent(plan, 0)?.shardId).toBe("bh-0000")
+    expect(locateLogicalAgent(plan, 6_999_999)?.shardId).toBe("bh-00jf")
+    expect(virtualAgentId(6_999_999)).toBe("black-house:000461bz")
+  })
+
+  test("enforces synthetic-range authorization and non-actuation policy", () => {
+    expect(() =>
+      assertBlackHouseAuthorization({ scope: BLACK_HOUSE_SCOPE, authorizedRangeId: "range-lab-01" }),
+    ).not.toThrow()
+    expect(() => assertBlackHouseAuthorization({ scope: "internet", authorizedRangeId: "range-lab-01" })).toThrow()
+    expect(() => assertBlackHouseAuthorization({ scope: BLACK_HOUSE_SCOPE, authorizedRangeId: "" })).toThrow()
+
+    expect(BLACK_HOUSE_COLLECTIVE_POLICY).toEqual({
+      networkActuation: false,
+      publicInternetTargets: false,
+      credentialOperations: false,
+      persistence: false,
+      destructiveActions: false,
+      dataExfiltration: false,
+      trafficFlooding: false,
+    })
+  })
+})
diff --git a/packages/cyberstrike/src/black-house/capacity.ts b/packages/cyberstrike/src/black-house/capacity.ts
new file mode 100644
index 000000000..cf4f21567
--- /dev/null
+++ b/packages/cyberstrike/src/black-house/capacity.ts
@@ -0,0 +1,67 @@
+export const DEFAULT_LOGICAL_AGENTS = 7_000_000
+export const DEFAULT_SHARD_SIZE = 10_000
+
+export interface CollectiveShard {
+  readonly shardId: string
+  readonly firstAgent: number
+  readonly lastAgent: number
+  readonly logicalAgents: number
+}
+
+export interface CollectiveCapacityPlan {
+  readonly logicalAgents: number
+  readonly shardSize: number
+  readonly shardCount: number
+  readonly shards: readonly CollectiveShard[]
+}
+
+function positiveSafeInteger(value: number, label: string) {
+  if (!Number.isSafeInteger(value) || value <= 0) {
+    throw new RangeError(`${label} must be a positive safe integer`)
+  }
+}
+
+export function createCollectiveCapacityPlan(
+  logicalAgents = DEFAULT_LOGICAL_AGENTS,
+  shardSize = DEFAULT_SHARD_SIZE,
+): CollectiveCapacityPlan {
+  positiveSafeInteger(logicalAgents, "logicalAgents")
+  positiveSafeInteger(shardSize, "shardSize")
+
+  const shardCount = Math.ceil(logicalAgents / shardSize)
+  const shards = Array.from({ length: shardCount }, (_, index): CollectiveShard => {
+    const firstAgent = index * shardSize
+    const lastAgent = Math.min(firstAgent + shardSize - 1, logicalAgents - 1)
+
+    return Object.freeze({
+      shardId: `bh-${index.toString(36).padStart(4, "0")}`,
+      firstAgent,
+      lastAgent,
+      logicalAgents: lastAgent - firstAgent + 1,
+    })
+  })
+
+  return Object.freeze({
+    logicalAgents,
+    shardSize,
+    shardCount,
+    shards: Object.freeze(shards),
+  })
+}
+
+export function locateLogicalAgent(plan: CollectiveCapacityPlan, agentIndex: number) {
+  if (!Number.isSafeInteger(agentIndex) || agentIndex < 0 || agentIndex >= plan.logicalAgents) {
+    throw new RangeError("agentIndex is outside this collective plan")
+  }
+
+  const shardIndex = Math.floor(agentIndex / plan.shardSize)
+  return plan.shards[shardIndex]
+}
+
+export function virtualAgentId(agentIndex: number, namespace = "black-house") {
+  if (!Number.isSafeInteger(agentIndex) || agentIndex < 0) {
+    throw new RangeError("agentIndex must be a non-negative safe integer")
+  }
+
+  return `${namespace}:${agentIndex.toString(36).padStart(8, "0")}`
+}
diff --git a/packages/cyberstrike/src/black-house/policy.ts b/packages/cyberstrike/src/black-house/policy.ts
new file mode 100644
index 000000000..1e00dba53
--- /dev/null
+++ b/packages/cyberstrike/src/black-house/policy.ts
@@ -0,0 +1,26 @@
+export const BLACK_HOUSE_SCOPE = "synthetic-range" as const
+
+export interface BlackHouseAuthorization {
+  readonly scope: typeof BLACK_HOUSE_SCOPE
+  readonly authorizedRangeId: string
+}
+
+export const BLACK_HOUSE_COLLECTIVE_POLICY = Object.freeze({
+  networkActuation: false as const,
+  publicInternetTargets: false as const,
+  credentialOperations: false as const,
+  persistence: false as const,
+  destructiveActions: false as const,
+  dataExfiltration: false as const,
+  trafficFlooding: false as const,
+})
+
+export function assertBlackHouseAuthorization(input: unknown): asserts input is BlackHouseAuthorization {
+  if (!input || typeof input !== "object") throw new TypeError("Black House authorization is required")
+
+  const candidate = input as Partial<BlackHouseAuthorization>
+  if (candidate.scope !== BLACK_HOUSE_SCOPE) throw new Error("Black House collective requires synthetic-range scope")
+  if (typeof candidate.authorizedRangeId !== "string" || candidate.authorizedRangeId.trim().length === 0) {
+    throw new Error("Black House collective requires an authorized range identifier")
+  }
+}