init: AI日报 pipeline 完整代码 + 技能文档 + 运行记录

skill/references/mimo-api-performance.md

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+# MiMo-v2.5-pro API Performance Profile
+
+Empirically tested on `https://token-plan-sgp.xiaomimimo.com/v1` (2026-05-29).
+
+## Latency by Prompt Size
+
+| Prompt Size | Items | Response Time | Status |
+|-------------|-------|---------------|--------|
+| ~500 chars | 1-2 | 2-4s | ✅ Reliable |
+| ~4,500 chars | 15 | ~73s | ✅ OK |
+| ~7,400 chars | 25 | >120s | ❌ Timeout |
+| ~10,900 chars | 35 | >120s | ❌ Timeout |
+| ~19,000 chars | 65-70 | >150s | ❌ Timeout |
+
+## Key Constraints
+
+- **Max reliable prompt size: ~5K chars / ~18 items** for structured output tasks
+- Output token generation is slow (~50-80 tokens/s for large JSON outputs)
+- Simple prompts (<1K) are fast and reliable (2-4s)
+- Latency is **highly variable** — same prompt can take 73s or timeout at 150s
+- Temperature 0.2 used for structured output consistency
+
+## Implications for Cron Jobs
+
+- **Pre-filter aggressively** before sending to LLM: dedupe + source priority + cap at 18 items
+- **Cron timeout 300s** budget: ~35s data fetch + ~80s LLM = ~115s typical, but retries can push to 250s+
+- Set LLM urllib timeout to **150s** (not 300s — it won't help, just wastes cron budget)
+- **Retry 2x max** (not 3x) to stay within 300s cron budget
+- If LLM consistently times out, check if API is rate-limited (test with simple prompt first)
+
+## Workaround: Pre-filter Pattern
+
+```python
+def _prefilter_items(raw_items, max_items=18):
+    """Dedupe + prioritize before LLM call."""
+    seen = set()
+    filtered = []
+    priority_sources = {'AI HOT': 1, '橘鸦AI早报': 1, 'InfoQ AI': 2, '量子位': 2}
+    sorted_items = sorted(raw_items, key=lambda r: priority_sources.get(r.get('source_group', ''), 3))
+    for item in sorted_items:
+        norm = re.sub(r'[^\w\u4e00-\u9fff]+', '', item['title_raw'].lower())
+        if not norm or len(norm) < 3 or norm in seen:
+            continue
+        seen.add(norm)
+        filtered.append(item)
+        if len(filtered) >= max_items:
+            break
+    return filtered
+```
+
+## Alternative Providers (tested same day)
+
+- **Findmini (gpt-5.4)**: `https://api.findmini.top/gpt/v1` — returned 503
+- **OpenRouter (free models)**: returned 429 rate limit
+- **MiMo small prompts**: consistently 2-4s, reliable for simple tasks