fix(context-window-monitor): use model-specific context limits

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode) Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
2026-03-08 02:10:40 +09:00
parent f3be710a73
commit 17707ee835
2 changed files with 103 additions and 3 deletions
@@ -0,0 +1,90 @@
+/// <reference types="bun-types" />
+
+import { describe, expect, it } from "bun:test"
+import { createContextWindowMonitorHook } from "./context-window-monitor"
+
+function createOutput() {
+  return { title: "", output: "original", metadata: null }
+}
+
+describe("context-window-monitor modelContextLimitsCache", () => {
+  it("does not append reminder below cached non-anthropic threshold", async () => {
+    // given
+    const modelContextLimitsCache = new Map<string, number>()
+    modelContextLimitsCache.set("opencode/kimi-k2.5-free", 262144)
+
+    const hook = createContextWindowMonitorHook({} as never, {
+      anthropicContext1MEnabled: false,
+      modelContextLimitsCache,
+    })
+    const sessionID = "ses_non_anthropic_below_threshold"
+
+    await hook.event({
+      event: {
+        type: "message.updated",
+        properties: {
+          info: {
+            role: "assistant",
+            sessionID,
+            providerID: "opencode",
+            modelID: "kimi-k2.5-free",
+            finish: true,
+            tokens: {
+              input: 150000,
+              output: 0,
+              reasoning: 0,
+              cache: { read: 10000, write: 0 },
+            },
+          },
+        },
+      },
+    })
+
+    // when
+    const output = createOutput()
+    await hook["tool.execute.after"]({ tool: "bash", sessionID, callID: "call_1" }, output)
+
+    // then
+    expect(output.output).toBe("original")
+  })
+
+  it("appends reminder above cached non-anthropic threshold", async () => {
+    // given
+    const modelContextLimitsCache = new Map<string, number>()
+    modelContextLimitsCache.set("opencode/kimi-k2.5-free", 262144)
+
+    const hook = createContextWindowMonitorHook({} as never, {
+      anthropicContext1MEnabled: false,
+      modelContextLimitsCache,
+    })
+    const sessionID = "ses_non_anthropic_above_threshold"
+
+    await hook.event({
+      event: {
+        type: "message.updated",
+        properties: {
+          info: {
+            role: "assistant",
+            sessionID,
+            providerID: "opencode",
+            modelID: "kimi-k2.5-free",
+            finish: true,
+            tokens: {
+              input: 180000,
+              output: 0,
+              reasoning: 0,
+              cache: { read: 10000, write: 0 },
+            },
+          },
+        },
+      },
+    })
+
+    // when
+    const output = createOutput()
+    await hook["tool.execute.after"]({ tool: "bash", sessionID, callID: "call_1" }, output)
+
+    // then
+    expect(output.output).toContain("context remaining")
+  })
+})