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Merged
christopherjnelson merged 1 commit into from
Sep 21, 2026
Merged

refactor: make zero swarm the sole cognition architecture #65

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1,433 changes: 39 additions & 1,394 deletions apps/game-api/src/app.test.ts
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250 changes: 31 additions & 219 deletions apps/game-api/src/app.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -2,23 +2,22 @@ import { Hono, type Context } from 'hono';
import { cors } from 'hono/cors';
import { createHash } from 'node:crypto';
import {
BrowserTestAgentProvider,
AgentProviderError,
DeterministicReflexProvider,
DeterministicSwarmPlanner,
OpenRouterModelCatalog,
OpenRouterAgentProvider,
OpenRouterSwarmPlanner,
SwarmPlannerError,
TypeSafeJevReflexProvider,
type AgentProvider,
type ReflexProvider,
type SwarmPlanner,
} from '@hexzero/agent-runtime';
import {
archiveExperimentExportRequestSchema,
archiveExperimentExportResponseSchema,
apiErrorSchema,
AGENT_DECISION_CONTRACT_VERSION,
SWARM_PLANNER_CONTRACT_VERSION,
cancelSimulationResponseSchema,
cancelledTurnResponseSchema,
cancelledTickResponseSchema,
experimentExportRequestSchema,
experimentExportPreviewSchema,
experimentExportResponseSchema,
Expand All @@ -31,7 +30,6 @@ import {
resetSimulationResponseSchema,
restoreDefaultPersonalitiesResponseSchema,
simulationSnapshotSchema,
singleTurnResponseSchema,
singleTickResponseSchema,
updateAgentPersonalityRequestSchema,
updateAgentPersonalityResponseSchema,
Expand Down Expand Up @@ -77,7 +75,6 @@ export { healthResponseSchema };

export interface AppOptions {
service?: SimulationService;
provider?: AgentProvider;
swarmPlanner?: SwarmPlanner;
reflexProvider?: ReflexProvider;
catalog?: Pick<OpenRouterModelCatalog, 'getCatalog'>;
Expand Down Expand Up @@ -107,41 +104,32 @@ async function archiveExperimentExportDefault(
}
}

export function resolveProviderModeFromEnvironment(
export function swarmProvidersFromEnvironment(
environment: NodeJS.ProcessEnv = process.env,
warn: (message: string) => void = console.warn,
): string | undefined {
if (environment.HEXZERO_PROVIDER !== undefined)
return environment.HEXZERO_PROVIDER;
if (environment.AGENTBORNE_PROVIDER !== undefined) {
warn(
'AGENTBORNE_PROVIDER is deprecated; use HEXZERO_PROVIDER. Continuing with the legacy setting.',
);
return environment.AGENTBORNE_PROVIDER;
}
return undefined;
}

export function providerFromEnvironment(
environment: NodeJS.ProcessEnv = process.env,
warn: (message: string) => void = console.warn,
): AgentProvider {
if (resolveProviderModeFromEnvironment(environment, warn) === 'scripted') {
return new BrowserTestAgentProvider();
}
return new OpenRouterAgentProvider({
apiKey: environment.OPENROUTER_API_KEY,
});
): { swarmPlanner: SwarmPlanner; reflexProvider: ReflexProvider } {
if (environment.HEXZERO_PROVIDER === 'scripted')
return {
swarmPlanner: new DeterministicSwarmPlanner(),
reflexProvider: new DeterministicReflexProvider(),
};
return {
swarmPlanner: new OpenRouterSwarmPlanner({
apiKey: environment.OPENROUTER_API_KEY,
}),
reflexProvider: new TypeSafeJevReflexProvider({
apiKey: environment.TYPESAFE_API_KEY,
}),
};
}

export function createApp(options: AppOptions = {}) {
const app = new Hono();
const providers = swarmProvidersFromEnvironment();
const service =
options.service ??
new SimulationService({
provider: options.provider ?? providerFromEnvironment(),
swarmPlanner: options.swarmPlanner ?? new OpenRouterSwarmPlanner(),
reflexProvider: options.reflexProvider ?? new TypeSafeJevReflexProvider(),
swarmPlanner: options.swarmPlanner ?? providers.swarmPlanner,
reflexProvider: options.reflexProvider ?? providers.reflexProvider,
});
const catalog =
options.catalog ??
Expand All @@ -153,13 +141,7 @@ export function createApp(options: AppOptions = {}) {
const turnMutations = new Map<string, Promise<unknown>>();
const mutationPromise = <T>(
context: Context,
operation:
| 'turn'
| 'tick'
| 'retry'
| 'unattended-retry'
| 'unattended-skip'
| 'setup',
operation: 'tick' | 'setup',
execute: () => Promise<T>,
): Promise<T> => {
const supplied =
Expand Down Expand Up @@ -345,7 +327,7 @@ export function createApp(options: AppOptions = {}) {
}),
400,
);
const cacheKey = `${request.data.modelId}:${request.data.reasoningProfile}:${AGENT_DECISION_CONTRACT_VERSION}`;
const cacheKey = `${request.data.modelId}:${request.data.reasoningProfile}:${SWARM_PLANNER_CONTRACT_VERSION}`;
const cached = modelVerifications.get(cacheKey);
if (cached && !request.data.force)
return context.json(
Expand All @@ -363,19 +345,19 @@ export function createApp(options: AppOptions = {}) {
const verification = modelVerificationSchema.parse({
modelId: request.data.modelId,
reasoningProfile: request.data.reasoningProfile,
contractVersion: AGENT_DECISION_CONTRACT_VERSION,
contractVersion: SWARM_PLANNER_CONTRACT_VERSION,
status: 'verified',
testedAt: new Date().toISOString(),
provider,
});
modelVerifications.set(cacheKey, verification);
return context.json(verifyModelResponseSchema.parse({ verification }));
} catch (error) {
if (error instanceof AgentProviderError) {
if (error instanceof SwarmPlannerError) {
const verification = modelVerificationSchema.parse({
modelId: request.data.modelId,
reasoningProfile: request.data.reasoningProfile,
contractVersion: AGENT_DECISION_CONTRACT_VERSION,
contractVersion: SWARM_PLANNER_CONTRACT_VERSION,
status: 'failed',
testedAt: new Date().toISOString(),
failure: {
Expand Down Expand Up @@ -501,73 +483,22 @@ export function createApp(options: AppOptions = {}) {
}
});

app.post('/api/simulation/turn', async (context) => {
try {
const turn = await mutationPromise(context, 'turn', () =>
service.executeNextTurn(),
);
return context.json(
singleTurnResponseSchema.parse({
snapshot: service.getSnapshot(),
turn,
}),
);
} catch (error) {
if (error instanceof SimulationTurnCancelledError)
return context.json(
cancelledTurnResponseSchema.parse({
snapshot: service.getSnapshot(),
cancelled: true,
}),
);
if (error instanceof SimulationConflictError) {
return context.json(
apiErrorSchema.parse({
error: { code: 'turn_conflict', message: error.message },
}),
409,
);
}
if (
error instanceof SimulationValidationError &&
error.code === 'models_unavailable'
)
return context.json(
apiErrorSchema.parse({
error: { code: error.code, message: error.message },
}),
409,
);
if (error instanceof SimulationValidationError)
return context.json(
apiErrorSchema.parse({
error: { code: 'invalid_request', message: error.message },
}),
400,
);
throw error;
}
});

app.post('/api/simulation/tick', async (context) => {
try {
const response = await mutationPromise(context, 'tick', async () => {
const records = await service.executeNextTick();
const swarmTick = await service.executeNextTick();
const snapshot = service.getSnapshot();
return singleTickResponseSchema.parse({
snapshot,
tickNumber: snapshot.tickNumber,
records,
...(snapshot.scenario.cognitionMode === 'zero-swarm-v1'
? { swarmTick: snapshot.swarmTicks?.at(-1) }
: {}),
swarmTick,
});
});
return context.json(response);
} catch (error) {
if (error instanceof SimulationTurnCancelledError)
return context.json(
cancelledTurnResponseSchema.parse({
cancelledTickResponseSchema.parse({
snapshot: service.getSnapshot(),
cancelled: true,
}),
Expand All @@ -590,24 +521,6 @@ export function createApp(options: AppOptions = {}) {
}
});

app.post('/api/simulation/turn/cancel', (context) => {
try {
return context.json(
cancelSimulationResponseSchema.parse({
snapshot: service.cancelCurrentRequest(),
}),
);
} catch (error) {
if (error instanceof SimulationConflictError)
return context.json(
apiErrorSchema.parse({
error: { code: 'cancel_conflict', message: error.message },
}),
409,
);
throw error;
}
});
app.post('/api/simulation/tick/cancel', (context) => {
try {
return context.json(
Expand All @@ -627,107 +540,6 @@ export function createApp(options: AppOptions = {}) {
}
});

const respondToManualTurn = async (
context: Context,
operation: 'retry' | 'skip',
) => {
try {
const turn =
operation === 'retry'
? await mutationPromise(context, 'retry', () =>
service.retryFailedTurn(),
)
: service.skipFailedTurn();
return context.json(
singleTurnResponseSchema.parse({
snapshot: service.getSnapshot(),
turn,
}),
);
} catch (error) {
if (error instanceof SimulationTurnCancelledError)
return context.json(
cancelledTurnResponseSchema.parse({
snapshot: service.getSnapshot(),
cancelled: true,
}),
);
if (error instanceof SimulationConflictError)
return context.json(
apiErrorSchema.parse({
error: { code: 'turn_conflict', message: error.message },
}),
409,
);
if (error instanceof SimulationValidationError)
return context.json(
apiErrorSchema.parse({
error: { code: error.code, message: error.message },
}),
409,
);
throw error;
}
};

app.post('/api/simulation/turn/retry', (context) =>
respondToManualTurn(context, 'retry'),
);
app.post('/api/simulation/turn/skip', (context) =>
respondToManualTurn(context, 'skip'),
);
app.post('/api/simulation/turn/unattended-retry', async (context) => {
try {
const turn = await mutationPromise(context, 'unattended-retry', () =>
service.retryFailedTurn('unattended-retry'),
);
return context.json(
singleTurnResponseSchema.parse({
snapshot: service.getSnapshot(),
turn,
}),
);
} catch (error) {
if (error instanceof SimulationTurnCancelledError)
return context.json(
cancelledTurnResponseSchema.parse({
snapshot: service.getSnapshot(),
cancelled: true,
}),
);
if (error instanceof SimulationConflictError)
return context.json(
apiErrorSchema.parse({
error: { code: 'turn_conflict', message: error.message },
}),
409,
);
throw error;
}
});
app.post('/api/simulation/turn/unattended-skip', async (context) => {
try {
const turn = await mutationPromise(context, 'unattended-skip', async () =>
service.skipFailedTurn('unattended'),
);
return context.json(
singleTurnResponseSchema.parse({
snapshot: service.getSnapshot(),
turn,
}),
);
} catch (error) {
if (error instanceof SimulationConflictError)
return context.json(
apiErrorSchema.parse({
error: { code: 'turn_conflict', message: error.message },
}),
409,
);
throw error;
}
});

app.post('/api/simulation/reset', (context) => {
try {
return context.json(
Expand Down
6 changes: 3 additions & 3 deletions apps/game-api/src/experiment-export.ts
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
import {
AGENT_DECISION_CONTRACT_VERSION,
SWARM_PLANNER_CONTRACT_VERSION,
experimentExportDocumentSchema,
experimentExportPreviewSchema,
experimentExportRequestSchema,
Expand Down Expand Up @@ -751,7 +751,7 @@ export function createExperimentExport(
};
const include = inclusionsFor(request);
const exportedSwarmTicks: SwarmTickRecord[] | undefined =
source.scenario.cognitionMode === 'zero-swarm-v1' &&
source.scenario.swarmArchitectureVersion === 'zero-swarm-v1' &&
request.agents.mode === 'all' &&
request.turns.mode === 'entire-retained'
? [...structuredClone(source.swarmTicks ?? [])]
Expand Down Expand Up @@ -800,7 +800,7 @@ export function createExperimentExport(
id: source.id,
startedAt: source.startedAt,
providerMode: source.providerMode,
decisionContractVersion: AGENT_DECISION_CONTRACT_VERSION,
swarmPlannerContractVersion: SWARM_PLANNER_CONTRACT_VERSION,
modelConfiguration: structuredClone(source.modelConfiguration),
behaviorConfiguration: structuredClone(source.behaviorConfiguration),
scenario: structuredClone(source.scenario),
Expand Down
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