Add MiniMax as an Anthropic-compatible AI provider

MiniMax-M3[1m] via api.minimaxi.com/anthropic per the official
Claude Code token-plan docs; the claude-code combo enters the
compatibility matrix as stable with mock regression coverage,
including the Haiku-slot fallback to the single model.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QKxGW1raAWaqeU8WdHsMsp

cn/registry/ai-compatibility.json

@@ -1,5 +1,5 @@
 {
-  "_verified": "2026-08-24. level=stable: adapter 渲染由 test/shell.d/omarchycn-ai-test.sh mock 回归覆盖; level=official-doc: 官方集成文档存在，native CLI 自管配置",
+  "_verified": "2026-08-25. level=stable: adapter 渲染由 test/shell.d/omarchycn-ai-test.sh mock 回归覆盖; level=official-doc: 官方集成文档存在，native CLI 自管配置",
   "combos": {
     "claude-code": {
       "deepseek": {
@@ -16,6 +16,11 @@
         "level": "stable",
         "doc": "https://docs.z.ai/devpack/tool/claude",
         "adapter": true
+      },
+      "minimax": {
+        "level": "stable",
+        "doc": "https://platform.minimax.io/docs/token-plan/claude-code",
+        "adapter": true
       }
     },
     "codex": {

cn/registry/ai-providers.json

@@ -1,44 +1,150 @@
 {
-  "_verified": "2026-08-24, from official docs (see OmarchyCN PRD §27)",
+  "_verified": "2026-08-25, from official docs (see OmarchyCN PRD §27; minimax: platform.minimax.io/docs/token-plan/claude-code)",
   "providers": {
     "deepseek": {
       "display_name": "DeepSeek",
-      "auth": ["api_key"],
+      "auth": [
+        "api_key"
+      ],
       "key_url": "https://platform.deepseek.com/api_keys",
       "endpoints": {
         "anthropic": "https://api.deepseek.com/anthropic",
         "openai": "https://api.deepseek.com"
       },
       "models": [
-        { "id": "deepseek-v4-pro[1m]", "aliases": ["default-coding"], "capabilities": ["tools", "streaming", "reasoning"] },
-        { "id": "deepseek-v4-flash", "aliases": ["fast"], "capabilities": ["tools", "streaming"] }
+        {
+          "id": "deepseek-v4-pro[1m]",
+          "aliases": [
+            "default-coding"
+          ],
+          "capabilities": [
+            "tools",
+            "streaming",
+            "reasoning"
+          ]
+        },
+        {
+          "id": "deepseek-v4-flash",
+          "aliases": [
+            "fast"
+          ],
+          "capabilities": [
+            "tools",
+            "streaming"
+          ]
+        }
       ]
     },
     "kimi": {
       "display_name": "Kimi (Moonshot)",
-      "auth": ["api_key"],
+      "auth": [
+        "api_key"
+      ],
       "key_url": "https://www.kimi.com/code",
       "endpoints": {
         "anthropic": "https://api.kimi.com/coding/",
         "openai": "https://api.moonshot.cn/v1"
       },
       "models": [
-        { "id": "kimi-for-coding", "aliases": ["default-coding"], "capabilities": ["tools", "streaming", "reasoning"] },
-        { "id": "kimi-for-coding-highspeed", "aliases": ["fast"], "capabilities": ["tools", "streaming"] },
-        { "id": "kimi-k2.6", "aliases": ["general"], "capabilities": ["tools", "streaming"], "protocol": "openai" }
+        {
+          "id": "kimi-for-coding",
+          "aliases": [
+            "default-coding"
+          ],
+          "capabilities": [
+            "tools",
+            "streaming",
+            "reasoning"
+          ]
+        },
+        {
+          "id": "kimi-for-coding-highspeed",
+          "aliases": [
+            "fast"
+          ],
+          "capabilities": [
+            "tools",
+            "streaming"
+          ]
+        },
+        {
+          "id": "kimi-k2.6",
+          "aliases": [
+            "general"
+          ],
+          "capabilities": [
+            "tools",
+            "streaming"
+          ],
+          "protocol": "openai"
+        }
       ]
     },
     "zai": {
       "display_name": "Z.AI / GLM",
-      "auth": ["api_key"],
+      "auth": [
+        "api_key"
+      ],
       "key_url": "https://z.ai/manage-apikey/apikey-list",
       "endpoints": {
         "anthropic": "https://api.z.ai/api/anthropic"
       },
       "models": [
-        { "id": "glm-5.2[1m]", "aliases": ["default-coding"], "capabilities": ["tools", "streaming", "reasoning"] },
-        { "id": "GLM-5.3", "aliases": ["latest"], "capabilities": ["tools", "streaming", "reasoning"] },
-        { "id": "GLM-4.7", "aliases": ["fast"], "capabilities": ["tools", "streaming"] }
+        {
+          "id": "glm-5.2[1m]",
+          "aliases": [
+            "default-coding"
+          ],
+          "capabilities": [
+            "tools",
+            "streaming",
+            "reasoning"
+          ]
+        },
+        {
+          "id": "GLM-5.3",
+          "aliases": [
+            "latest"
+          ],
+          "capabilities": [
+            "tools",
+            "streaming",
+            "reasoning"
+          ]
+        },
+        {
+          "id": "GLM-4.7",
+          "aliases": [
+            "fast"
+          ],
+          "capabilities": [
+            "tools",
+            "streaming"
+          ]
+        }
+      ]
+    },
+    "minimax": {
+      "display_name": "MiniMax",
+      "auth": [
+        "api_key"
+      ],
+      "key_url": "https://platform.minimaxi.com/user-center/payment/token-plan",
+      "endpoints": {
+        "anthropic": "https://api.minimaxi.com/anthropic"
+      },
+      "models": [
+        {
+          "id": "MiniMax-M3[1m]",
+          "aliases": [
+            "default-coding"
+          ],
+          "capabilities": [
+            "tools",
+            "streaming",
+            "reasoning"
+          ]
+        }
       ]
     }
   }

test/shell.d/omarchycn-ai-test.sh

@@ -34,7 +34,7 @@ export PATH="$TEST_HOME/stubs:$PATH"
 for reg in ai-providers ai-harnesses ai-compatibility; do
   jq -e . "$ROOT/cn/registry/$reg.json" > /dev/null || fail "$reg.json parses"
 done
-for p in deepseek kimi zai; do
+for p in deepseek kimi zai minimax; do
   jq -e --arg p "$p" '.providers[$p].endpoints.anthropic // .providers[$p].endpoints.openai' \
     "$ROOT/cn/registry/ai-providers.json" > /dev/null || fail "provider $p has an endpoint"
 done
@@ -67,13 +67,16 @@ declare -A bases=(
   [deepseek]="https://api.deepseek.com/anthropic"
   [kimi]="https://api.kimi.com/coding/"
   [zai]="https://api.z.ai/api/anthropic"
+  [minimax]="https://api.minimaxi.com/anthropic"
 )
-for p in deepseek kimi zai; do
+for p in deepseek kimi zai minimax; do
   out=$(cn_ai_render_env claude-code "$p" test-model sk-x)
   grep -qF "ANTHROPIC_BASE_URL=${bases[$p]}" <<<"$out" || fail "claude-code $p base url" "$out"
   grep -q "ANTHROPIC_AUTH_TOKEN=sk-x" <<<"$out" || fail "claude-code $p auth token"
   grep -q "ANTHROPIC_API_KEY=sk-x" <<<"$out" || fail "claude-code $p api key"
 done
+out=$(cn_ai_render_env claude-code minimax "MiniMax-M3[1m]" sk-x)
+grep -qF "ANTHROPIC_DEFAULT_HAIKU_MODEL=MiniMax-M3" <<<"$out" || fail "minimax haiku slot falls back to default-coding"
 out=$(cn_ai_render_env opencode deepseek test-model sk-x)
 grep -q "DEEPSEEK_API_KEY=sk-x" <<<"$out" || fail "opencode deepseek env"
 if cn_ai_render_env opencode zai m k > /dev/null 2>&1; then