diff --git a/tests/unit/capacity-adapter.test.js b/tests/unit/capacity-adapter.test.js
deleted file mode 100644
index fd3945dd..00000000
--- a/tests/unit/capacity-adapter.test.js
+++ /dev/null
@@ -1,180 +0,0 @@
-import { describe, it, expect, vi } from "vitest";
-
-// Mock capabilities: claude-sonnet has vision + small context to exercise stripping;
-// everything else is text-only. This isolates tests from the real registry.
-vi.mock("../../open-sse/providers/capabilities.js", () => ({
-  getCapabilitiesForModel: (provider, model) => {
-    const base = model.includes("/") ? model.split("/").pop() : model;
-    return {
-      vision: base.includes("claude-sonnet"),
-      pdf: false,
-      audioInput: false,
-      videoInput: false,
-      contextWindow: base.includes("claude-sonnet") ? 2000 : 128000,
-    };
-  },
-}));
-
-import {
-  getCapacityAdapterModels,
-  augmentModelsWithCapacityAdapter,
-  stripHistoryForContext,
-  withCapacityAdapterStripping,
-} from "../../open-sse/services/capacityAdapter.js";
-
-const VISION_MODEL = "anthropic/claude-sonnet-4.6";
-const TEXT_MODEL = "deepseek/deepseek-chat";
-
-const settingsWith = (cap, entry) => ({
-  capacityAdapter: {
-    vision: { enabled: false, roundRobin: false, models: [] },
-    pdf: { enabled: false, roundRobin: false, models: [] },
-    audioInput: { enabled: false, roundRobin: false, models: [] },
-    videoInput: { enabled: false, roundRobin: false, models: [] },
-    [cap]: entry,
-  },
-});
-
-describe("getCapacityAdapterModels", () => {
-  it("flattens enabled pools in priority order, deduped across pools", () => {
-    const settings = {
-      capacityAdapter: {
-        vision: { enabled: true, roundRobin: false, models: ["a/x", "b/y"] },
-        pdf: { enabled: true, roundRobin: false, models: ["a/x", "c/z"] },
-        audioInput: { enabled: false, roundRobin: false, models: ["d/w"] },
-        videoInput: { enabled: false, roundRobin: false, models: [] },
-      },
-    };
-    expect(getCapacityAdapterModels(settings)).toEqual(["a/x", "b/y", "c/z"]);
-  });
-
-  it("returns [] when no settings", () => {
-    expect(getCapacityAdapterModels(undefined)).toEqual([]);
-    expect(getCapacityAdapterModels({})).toEqual([]);
-  });
-});
-
-describe("augmentModelsWithCapacityAdapter", () => {
-  it("prepends a capable adapter model (priority) when no original model satisfies vision", () => {
-    const settings = settingsWith("vision", [{ model: VISION_MODEL, enabled: true }]);
-    const out = augmentModelsWithCapacityAdapter([TEXT_MODEL], new Set(["vision"]), settings);
-    expect(out).toEqual([VISION_MODEL, TEXT_MODEL]);
-  });
-
-  it("leaves models untouched when an original model already satisfies the cap", () => {
-    const settings = settingsWith("vision", [{ model: VISION_MODEL, enabled: true }]);
-    const out = augmentModelsWithCapacityAdapter([VISION_MODEL, TEXT_MODEL], new Set(["vision"]), settings);
-    expect(out).toEqual([VISION_MODEL, TEXT_MODEL]);
-  });
-
-  it("skips disabled adapter entries", () => {
-    const settings = settingsWith("vision", { enabled: false, roundRobin: false, models: [VISION_MODEL] });
-    const out = augmentModelsWithCapacityAdapter([TEXT_MODEL], new Set(["vision"]), settings);
-    expect(out).toEqual([TEXT_MODEL]);
-  });
-
-  it("skips adapter models that don't satisfy the required cap", () => {
-    // adapter pool only has a text model -> useless for vision
-    const settings = settingsWith("vision", [{ model: TEXT_MODEL, enabled: true }]);
-    const out = augmentModelsWithCapacityAdapter([TEXT_MODEL], new Set(["vision"]), settings);
-    expect(out).toEqual([TEXT_MODEL]);
-  });
-
-  it("no required capabilities -> unchanged", () => {
-    const settings = settingsWith("vision", [{ model: VISION_MODEL, enabled: true }]);
-    const out = augmentModelsWithCapacityAdapter([TEXT_MODEL], new Set(), settings);
-    expect(out).toEqual([TEXT_MODEL]);
-  });
-
-  it("filters to hard caps only (ignores soft caps like search)", () => {
-    const settings = settingsWith("vision", [{ model: VISION_MODEL, enabled: true }]);
-    const out = augmentModelsWithCapacityAdapter([TEXT_MODEL], new Set(["search"]), settings);
-    expect(out).toEqual([TEXT_MODEL]);
-  });
-});
-
-describe("stripHistoryForContext", () => {
-  const big = "x".repeat(10000);
-
-  it("keeps system + trailing user turn, drops oldest when over budget", () => {
-    const body = {
-      messages: [
-        { role: "system", content: "sys" },
-        { role: "user", content: big },
-        { role: "assistant", content: big },
-        { role: "user", content: big },
-        { role: "assistant", content: big },
-        { role: "user", content: [{ type: "image_url", image_url: { url: "data:x" } }] },
-      ],
-    };
-    // Tiny budget forces dropping. ~4000 chars budget.
-    const out = stripHistoryForContext(body, 2000);
-    // System + the last (image) user turn must always survive.
-    expect(out.messages[0]).toMatchObject({ role: "system" });
-    expect(out.messages.at(-1)).toMatchObject({ role: "user" });
-    expect(out.messages.length).toBeLessThan(body.messages.length);
-  });
-
-  it("returns body unchanged when already within budget", () => {
-    const body = { messages: [
-      { role: "user", content: "hi" },
-      { role: "assistant", content: "hey" },
-      { role: "user", content: "again" },
-    ] };
-    expect(stripHistoryForContext(body, 200000)).toBe(body);
-  });
-
-  it("no-op on unsupported shape", () => {
-    const body = { foo: 1 };
-    expect(stripHistoryForContext(body, 1000)).toBe(body);
-  });
-
-  it("handles gemini contents/parts shape", () => {
-    const body = {
-      contents: [
-        { role: "user", parts: [{ text: big }] },
-        { role: "model", parts: [{ text: big }] },
-        { role: "user", parts: [{ inlineData: { mimeType: "image/png", data: "x" } }] },
-      ],
-    };
-    const out = stripHistoryForContext(body, 2000);
-    expect(out.contents.at(-1).role).toBe("user");
-    expect(out.contents.length).toBeLessThan(body.contents.length);
-  });
-});
-
-describe("withCapacityAdapterStripping", () => {
-  it("strips history only for adapter models", async () => {
-    const seen = [];
-    const inner = vi.fn(async (body, modelStr) => {
-      seen.push({ model: modelStr, len: body.messages?.length });
-      return { ok: true };
-    });
-    const wrapped = withCapacityAdapterStripping(inner, [VISION_MODEL]);
-
-    const big = "x".repeat(10000);
-    const body = {
-      messages: [
-        { role: "user", content: big },
-        { role: "assistant", content: big },
-        { role: "user", content: big },
-        { role: "assistant", content: big },
-        { role: "user", content: [{ type: "image_url", image_url: { url: "x" } }] },
-      ],
-    };
-
-    // Adapter model -> history stripped (fewer messages)
-    await wrapped(body, VISION_MODEL);
-    expect(seen[0].len).toBeLessThan(body.messages.length);
-
-    // Non-adapter model -> body untouched (same length)
-    await wrapped(body, TEXT_MODEL);
-    expect(seen[1].len).toBe(body.messages.length);
-  });
-
-  it("passthrough when adapterModels empty", async () => {
-    const inner = vi.fn(async () => ({ ok: true }));
-    const wrapped = withCapacityAdapterStripping(inner, []);
-    expect(wrapped).toBe(inner);
-  });
-});