classifyTopic fails when summarizer uses Anthropic endpoint (Kimi Code)

[Lunareith]

Bug Report: classifyTopic fails when summarizer is configured with Anthropic endpoint

Environment

• OpenClaw version: 2026.4.29
• MemOS plugin: memos-local-openclaw-plugin v1.0.8
• Model: anthropic/kimi-for-coding
• Endpoint: https://api.kimi.com/coding/v1/messages

Problem

TaskProcessor.classifyTopic always fails with 404 when the MemOS summarizer is configured to use an Anthropic-compatible endpoint (e.g., Kimi Code's /messages endpoint).

Error Log

classifyTopic failed (anthropic/kimi-for-coding), trying next:
Error: OpenAI topic-classifier failed (404):
{"error":{"message":"The requested resource was not found","type":"resource_not_found_error"}}

Root Cause

classifyTopic in src/ingest/providers/index.ts always calls classifyTopicOpenAI(), which sends requests in OpenAI format (/chat/completions), regardless of the summarizer's configured provider.

Component	Format Used	Endpoint
summarizer (configured)	Anthropic Messages	/coding/v1/messages ✅
classifyTopic (hardcoded)	OpenAI Chat Completions	/coding/v1 ❌

When the endpoint only supports Anthropic format, the OpenAI-style classifyTopic request returns 404.

Why This Didn't Happen Before

• DeepSeek supports both OpenAI and Anthropic formats simultaneously, so OpenAI-style classifyTopic works even when summarizer uses Anthropic config.
• Kimi Code's Anthropic endpoint (/coding/v1/messages) only accepts Anthropic format, rejecting OpenAI-style requests.

Impact

• Every incoming message triggers a classifyTopic call that fails and falls back.
• Wastes tokens (small per-call, but adds up).
• Pollutes logs with repeated 404 errors.
• Increases event-loop latency (related to observed Gateway slowdowns).

Proposed Fix

Option A: Make classifyTopic respect the summarizer's configured provider and call the appropriate implementation (OpenAI vs Anthropic).

Option B: Add a separate topicClassifier configuration key so users can explicitly set a different provider/model for topic classification.

Related Code

• src/ingest/providers/index.ts: classifyTopic()
• src/ingest/providers/openai.ts: classifyTopicOpenAI()
• src/ingest/task-processor.ts: onChunksIngested() → classifyTopic()

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Additional context: This was discovered while investigating why QQ Bot responses became slow. The repeated classifyTopic failures contribute to event-loop blocking in the OpenClaw Gateway.