});

});

it("preserves an operator-configured zero-cost model as a complete $0, not missing", async () => {

const root = await makeSessionCostRoot("cost-intentional-free");

it("counts token usage for a configured all-zero model as missing because pricing is still unknown", async () => {

const root = await makeSessionCostRoot("cost-configured-zero-unknown");

const sessionsDir = path.join(root, "agents", "main", "sessions");

await fs.mkdir(sessionsDir, { recursive: true });

// Same shape of turn, but here the operator deliberately priced the model at 0

// (e.g. a local/self-hosted free model). That intentional $0 must be respected.

// Same shape of turn, with a configured all-zero cost block. After config defaults,

// omitted cost and explicit all-zero cost are indistinguishable, so a zero-rate

// token-burning turn is still safer to report as missing than as complete $0 spend.

const entry = {

type: "message",

timestamp: new Date().toISOString(),

"utf-8",

);

// The operator explicitly configured this model's price as 0 — an intentional

// "free" price that must be preserved as complete $0 cost data.

// This mirrors normalized config where a model declaration without pricing has

// already received default zero rates.

const config = {

models: {

providers: {

const summary = await loadCostUsageSummary({ days: 30, config });

expect(summary.totals.totalTokens).toBe(23287);

expect(summary.totals.totalCost).toBe(0);

// Operator-configured $0 is intentional and complete — not a missing entry.

expect(summary.totals.missingCostEntries).toBe(0);

expect(summary.totals.missingCostEntries).toBe(1);

});

});