fix(agents): isolate Claude client model mapping drafts

src/i18n/ja.ts

@@ -576,7 +576,7 @@ export const jaOverrides = {
   'agents.claudeCodeRuntime.maxContextTokensHint': 'Claude Code の既定値は 200000 です。上流モデルの上限を超えないでください。',
   'agents.claudeCodeRuntime.context1mHint': 'このマッピングで [1m] モデルを使用し、最大コンテキストを 1000000 にします。3 つすべてを無効にすると 200000 に戻ります。',
   'agents.claudeCodeRuntime.autoCompactPct': '自動圧縮の開始率',
-  'agents.claudeCodeRuntime.autoCompactPctHint': '既定値は 100% です。小さい値ほど早く圧縮します。',
+  'agents.claudeCodeRuntime.autoCompactPctHint': '既定値は 90% です。小さい値ほど早く圧縮します。',
   'agents.claudeCodeRuntime.disableAutoCompact': '自動圧縮を無効化',
   'agents.claudeCodeRuntime.disableAutoCompactHint': '有効時は /compact による手動圧縮のみ利用できます。',
   'agents.claudeDesktopMapping.customMapping': 'モデルエイリアスを使用',

src/i18n/locales/en.ts

@@ -571,7 +571,7 @@ export const en: Record<MessageKey, string> = {
   'agents.claudeCodeRuntime.maxContextTokensHint': 'Claude Code defaults to 200000. Do not exceed the upstream model limit.',
   'agents.claudeCodeRuntime.context1mHint': 'Uses the [1m] model for this mapping and sets the maximum context to 1000000. It returns to 200000 after all three mappings are off.',
   'agents.claudeCodeRuntime.autoCompactPct': 'Auto-compact trigger',
-  'agents.claudeCodeRuntime.autoCompactPctHint': 'Defaults to 100%. Lower values compact earlier.',
+  'agents.claudeCodeRuntime.autoCompactPctHint': 'Defaults to 90%. Lower values compact earlier.',
   'agents.claudeCodeRuntime.disableAutoCompact': 'Disable auto-compaction',
   'agents.claudeCodeRuntime.disableAutoCompactHint': 'Only manual /compact remains available when enabled.',
   'agents.claudeDesktopMapping.customMapping': 'Use Model Aliases',

src/i18n/locales/zh-CN.ts

@@ -569,7 +569,7 @@ export const zhCN = {
   'agents.claudeCodeRuntime.maxContextTokensHint': 'Claude Code 默认 200000；请勿超过上游模型实际支持的窗口。',
   'agents.claudeCodeRuntime.context1mHint': '为此映射使用 [1m] 模型并将最大窗口设为 1000000；三个映射均关闭后恢复为 200000。',
   'agents.claudeCodeRuntime.autoCompactPct': '触发压缩百分比',
-  'agents.claudeCodeRuntime.autoCompactPctHint': '默认 100；调低后会更早自动压缩。',
+  'agents.claudeCodeRuntime.autoCompactPctHint': '默认 90%；调低后会更早自动压缩。',
   'agents.claudeCodeRuntime.disableAutoCompact': '禁止自动压缩',
   'agents.claudeCodeRuntime.disableAutoCompactHint': '开启后仅允许用户通过 /compact 手动压缩。',
   'agents.claudeDesktopMapping.customMapping': '使用模型别名',

src/pages/AgentsPage.tsx

@@ -39,6 +39,7 @@ import {
 } from '../services/agentModelPicker';
 import {
   resolveAgentConfigurationAction,
+  resolveAgentModelMappingsDraftSource,
   sameAgentModel,
   sameAgentModelMappings,
 } from '../services/agentConfigurationDraft';
@@ -111,7 +112,7 @@ type ClaudeModelMappings = {
 
 const CODEX_OAUTH_LOGIN_REQUIRED_ERROR = 'CODEX_OAUTH_LOGIN_REQUIRED';
 const DEFAULT_CLAUDE_CODE_MAX_CONTEXT_TOKENS = 200_000;
-const DEFAULT_CLAUDE_AUTO_COMPACT_PCT = 100;
+const DEFAULT_CLAUDE_AUTO_COMPACT_PCT = 90;
 
 const createClaudeModelMappings = (model: string): ClaudeModelMappings => ({
   opus: model,
@@ -720,18 +721,24 @@ export function AgentsPage() {
     const appliedMappings = selected === 'claude-code'
       ? activeStatus?.claudeCodeModelMappings
       : activeStatus?.claudeDesktopModelMappings;
-    if (!claudeModelMappingsDirtyRef.current && appliedMappings) {
-      const appliedModels = claudeMappingRoles
-        .map((role) => findAgentModel(models, appliedMappings[role.key]))
-        .filter((model): model is ModelOption => model !== null);
-      if (appliedModels.length === claudeMappingRoles.length) {
-        setClaudeCustomMapping(appliedModels.every((model) => Boolean(model.isAlias)));
-      }
+    if (!claudeModelMappingsDirtyRef.current) {
+      const appliedModels = appliedMappings
+        ? claudeMappingRoles
+            .map((role) => findAgentModel(models, appliedMappings[role.key]))
+            .filter((model): model is ModelOption => model !== null)
+        : [];
+      setClaudeCustomMapping(
+        appliedModels.length === claudeMappingRoles.length
+          && appliedModels.every((model) => Boolean(model.isAlias)),
+      );
     }
     setClaudeModelMappingsDraft((current) => {
-      const source = claudeModelMappingsDirtyRef.current
-        ? current
-        : appliedMappings ?? current;
+      const source = resolveAgentModelMappingsDraftSource(
+        current,
+        appliedMappings,
+        createClaudeModelMappings(selectedModel),
+        claudeModelMappingsDirtyRef.current,
+      );
       const next: ClaudeModelMappings = {
         opus: findAgentModel(models, source.opus)?.name ?? selectedModel,
         sonnet: findAgentModel(models, source.sonnet)?.name ?? selectedModel,

src/services/agentConfigurationDraft.ts

@@ -50,9 +50,16 @@ export const sameAgentModelMappings = (
   && Boolean(left.sonnet1m) === Boolean(right.sonnet1m)
   && Boolean(left.haiku1m) === Boolean(right.haiku1m)
   && (left.maxContextTokens ?? 200_000) === (right.maxContextTokens ?? 200_000)
-  && (left.autoCompactPct ?? 100) === (right.autoCompactPct ?? 100)
+  && (left.autoCompactPct ?? 90) === (right.autoCompactPct ?? 90)
   && Boolean(left.disableAutoCompact) === Boolean(right.disableAutoCompact);
 
+export const resolveAgentModelMappingsDraftSource = <T>(
+  current: T,
+  applied: T | null | undefined,
+  fallback: T,
+  dirty: boolean,
+): T => (dirty ? current : applied ?? fallback);
+
 export function resolveAgentConfigurationAction({
   client,
   modificationState,