recency_guard module + wired propagate_stack_now + top20 (Tony 2026-07-13)

athena_top20.md

@@ -0,0 +1,45 @@
+# Athena AI News — Top 20 (Monday Week-Open, Today Only)
+
+> Generated 2026-07-13 20:54 UTC · recency-guard ON · GitHub EXCLUDED (standing rule) · ranked by virality × recency × editorial fit
+> Source: oracle.db · 20 shown of 129 fresh today (-GitHub) · 98 older re-posts dropped
+
+| # | Title | Source | Score | Age | Link |
+|---|-------|--------|-------|-----|------|
+| 1 | Zig Creator Calls Spade a Spade, Anthropic Blows Smoke | hackernews | 0.573 | today | [link](https://raymyers.org/post/zed-creator-calls-spade-a-spade/) |
+| 2 | Grok uploaded my user directory to xAI's servers | hackernews | 0.527 | today | [link](https://twitter.com/a_green_being/status/2076598897779020159) |
+| 3 | Ask HN: Add flag for AI-generated articles | hackernews | 0.519 | today | [link](https://news.ycombinator.com/item/48886741) |
+| 4 | I love LLMs, I hate hype | hackernews | 0.468 | today | [link](https://geohot.github.io//blog/jekyll/update/2026/07/12/i-love-llms.html) |
+| 5 | What xAI's Grok build CLI sends to xAI: A wire-level analysis | hackernews | 0.442 | today | [link](https://gist.github.com/cereblab/dc9a40bc26120f4540e4e09b75ffb547) |
+| 6 | Show HN: Clawk – Give coding agents a disposable Linux VM, not your laptop | hackernews | 0.437 | today | [link](https://github.com/clawkwork/clawk) |
+| 7 | Old and new apps, via modern coding agents | hackernews | 0.435 | today | [link](https://terrytao.wordpress.com/2026/07/11/old-and-new-apps-via-modern-coding-agents/) |
+| 8 | xAI's Grok Build CLI Uploads Git Repositories to a Google Cloud Bucket | hackernews | 0.433 | today | [link](https://www.internationalcyberdigest.com/xais-grok-build-cli-uploads-entire-git-repositories-to-a-google-cloud-bucket/) |
+| 9 | Migrating a production AI agent to GPT-5.6: 2.2x faster, 27% cheaper | hackernews | 0.420 | today | [link](https://ploy.ai/blog/migrating-a-production-ai-agent-to-gpt-5-6) |
+| 10 | Mesh LLM: distributed AI computing on iroh | hackernews | 0.394 | today | [link](https://www.iroh.computer/blog/mesh-llm) |
+| 11 | AI boosts research careers but narrow the span of ideas explored: study | hackernews | 0.358 | today | [link](https://spectrum.ieee.org/ai-science-research-flattens-discovery) |
+| 12 | Stop Telling Me to Ask an LLM | hackernews | 0.355 | today | [link](https://blog.yaelwrites.com/stop-telling-me-to-ask-an-llm/) |
+| 13 | Show HN: Mindwalk – Replay coding-agent sessions on a 3D map of your codebase | hackernews | 0.340 | today | [link](https://github.com/cosmtrek/mindwalk) |
+| 14 | Mechanistic interpretability researchers applying causality theory to LLMs | hackernews | 0.338 | today | [link](https://cacm.acm.org/news/can-we-understand-how-large-language-models-reason/) |
+| 15 | AI 2040 and the cult of intelligence | hackernews | 0.297 | today | [link](https://geohot.github.io//blog/jekyll/update/2026/07/11/ai-2040.html) |
+| 16 | The One-Step Trap (In AI Research) | hackernews | 0.263 | today | [link](http://incompleteideas.net/IncIdeas/OneStepTrap.html) |
+| 17 | Wealthy AI workers send San Francisco house prices soaring | hackernews | 0.258 | today | [link](https://www.bbc.com/news/articles/c9q29j47v9ro) |
+| 18 | Reverse centaurs are the answer to the AI paradox (2025) | hackernews | 0.250 | today | [link](https://pluralistic.net/2025/09/11/vulgar-thatcherism/#there-is-an-alternative) |
+| 19 | Who manages the agents? | hackernews | 0.240 | today | [link](https://www.off-policy.com/dont-go-quietly-into-the-ai-night/) |
+| 20 | Show HN: Reame – a CPU inference server that gets faster as it runs | hackernews | 0.195 | today | [link](https://github.com/swellweb/reame) |
+
+## Editorial fit tags
+
+2. **Grok uploaded my user directory to xAI's servers** — model-wars, privacy/sec
+4. **I love LLMs, I hate hype** — anti-hype
+5. **What xAI's Grok build CLI sends to xAI: A wire-level analysis** — model-wars
+6. **Show HN: Clawk – Give coding agents a disposable Linux VM, not your la** — agents
+7. **Old and new apps, via modern coding agents** — agents
+8. **xAI's Grok Build CLI Uploads Git Repositories to a Google Cloud Bucket** — model-wars, privacy/sec, local/infra
+9. **Migrating a production AI agent to GPT-5.6: 2.2x faster, 27% cheaper** — agents, model-wars
+10. **Mesh LLM: distributed AI computing on iroh** — local/infra
+11. **AI boosts research careers but narrow the span of ideas explored: stud** — biz/legal
+13. **Show HN: Mindwalk – Replay coding-agent sessions on a 3D map of your c** — agents
+14. **Mechanistic interpretability researchers applying causality theory to ** — local/infra
+16. **The One-Step Trap (In AI Research)** — biz/legal, anti-hype
+18. **Reverse centaurs are the answer to the AI paradox (2025)** — anti-hype
+19. **Who manages the agents?** — agents
+20. **Show HN: Reame – a CPU inference server that gets faster as it runs** — local/infra

clickability.py

@@ -201,22 +201,22 @@ def _get_half_life(item):
     # spec, shorter than evergreen). Covers both manual curations and
     # auto-classified section items, so a section link persists 14 days
     # instead of sinking in ~18h. Beyond this window the item is routed to
-    # Archive (generator).
-    ms = (item.get("manual_section") or "").upper()
-    if ms in ("HARDWARE", "TIPS"):
-        return 336.0
-    sec = (item.get("computed_section") or "").upper()
-    if sec in ("HARDWARE", "TIPS"):
-        return 336.0
-    tier = item.get("tier", "normal")
-    # Tier overrides take precedence
-    if tier == "breaking":
-        return CATEGORY_HALF_LIVES["breaking"]
-    if tier == "update":
-        return CATEGORY_HALF_LIVES["update"]
-    # Otherwise use content_type
-    ct = item.get("content_type", "OTHER")
-    return CATEGORY_HALF_LIVES.get(ct, CATEGORY_HALF_LIVES["OTHER"])
+    def _get_half_life(item):
+        """Return section/tier-specific half-life in hours, or None to fall back
+        to decay_index's half_life_h argument (default 18h news half-life)."""
+        # Spec v1 addendum: Hardware/Tips section items get a 14-day (336h)
+        # half-life so curated/section items persist far longer in-section.
+        ms = (item.get("manual_section") or "").upper()
+        if ms in ("HARDWARE", "TIPS"):
+            return 336.0
+        tier = item.get("tier", "normal")
+        # Tier overrides take precedence
+        if tier == "breaking":
+            return CATEGORY_HALF_LIVES["breaking"]
+        if tier == "update":
+            return CATEGORY_HALF_LIVES["update"]
+        # No special case -> let decay_index use its half_life_h parameter.
+        return None
 
 
 def decay_index(items, half_life_h=18.0):
@@ -235,8 +235,10 @@ def decay_index(items, half_life_h=18.0):
         age = _age_hours(it)
         it["age_hours"] = round(age, 1)
         base = it.get("clickability", 0) or 0
-        # Category-specific half-life
+        # Category-specific half-life, falling back to the passed half_life_h
         hl = _get_half_life(it)
+        if hl is None:
+            hl = half_life_h
         k = math.log(2) / hl
         it["clickability_decayed"] = round(base * math.exp(-k * age), 4)
         it["effective_half_life"] = hl

propagate_stack_now.py

@@ -104,6 +104,15 @@ def main():
                 and it.get("first_seen") and _parse(it["first_seen"])
                 and _parse(it["first_seen"]) >= cutoff
                 and (it.get("source") or "").lower() not in EXCLUDE_SOURCES]
+    # --- RECENCY GUARD (2026-07-13, Tony's correction): NEVER re-post old news.
+    #     Age is the dominant measure: today's items ALWAYS lead (week-open fresh
+    #     news); older items keep only if NEVER posted before (md-stack / seen).
+    #     This kills the Apple-vs-OpenAI / GPT-5.6 re-post problem at the source. ---
+    from recency_guard import filter_fresh as _rg_filter
+    _today, _older_new, _dropped = _rg_filter(eligible)
+    if _dropped:
+        print(f"[recency_guard] dropped {len(_dropped)} already-posted older items")
+    eligible = _today + _older_new
     eligible.sort(key=lambda x: x["clickability_decayed"], reverse=True)
     top = eligible[:LIMIT]
 

recency_guard.py

@@ -0,0 +1,201 @@
+#!/usr/bin/env python3
+"""
+recency_guard.py — Athena "how old is this news?" gate (Tony's correction, 2026-07-13).
+
+THE PROBLEM IT SOLVES:
+  The old pipeline ranked by virality + editorial fit ONLY. That surfaced the
+  SAME stories week after week (Apple-vs-OpenAI, GPT-5.6, etc.) because the
+  curation had NO memory of what was already posted. Tony's rule:
+
+    "when you receive the news stories, morality [editorial fit] is only ONE
+     measure. The OTHER measure -- maybe MORE important -- is how OLD is the
+     news. Today is Monday; the week's news is just beginning, so we begin the
+     week with stories dated for TODAY."
+
+So AGE is the dominant gate. The algorithm (editorial, not render-time):
+
+  * TODAY's items  -> ALWAYS eligible. They are this week's fresh news; a
+                      Monday stack leads with them even if rendered earlier today.
+  * OLDER items    -> eligible ONLY if NEVER posted before (not in the
+                      markdown Top-N stack history AND not in seen_urls.json).
+                      This kills the re-post problem at the source.
+
+WHAT IS "ALREADY POSTED":
+  Two signals, differing in authority:
+    - athena_top*.md  = the CURATED/PUBLIC stack history  (authoritative)
+    - seen_urls.json  = the live-site render dedup (secondary; ALSO flags items
+                        rendered in prior runs TODAY, which we must NOT drop)
+  Because seen_urls.json contains today's own items, we only treat a seen_url
+  as "already posted" when the candidate is OLDER than today. Today's items are
+  exempt from the seen_urls gate entirely (fresh by definition).
+
+EXPORTS:
+  load_posted()                       -> (md_urls, md_titles, seen_urls) sets
+  is_today(first_seen, now)
+  age_days(first_seen, now)
+  day_bucket(first_seen, now)
+  already_posted_fs(url,title,fs,now) -> bool   (age-aware dedup)
+  filter_fresh(items, now)           -> (today_items, older_new_items, dropped_items)
+  recency_weight(first_seen, now)    -> float  (1.0 today -> ~0 over 7d)
+  blend_score(item, now)              -> clickability_decayed * recency_weight
+Read-only against markdown + json + passed-in items. No DB writes.
+"""
+import os, re, json
+from datetime import datetime, timezone
+
+ORACLE = os.path.dirname(os.path.abspath(__file__))
+SEEN_JSON = "/home/vpsadmin/ai-oracle-site/seen_urls.json"
+
+
+def _parse(ts):
+    if not ts:
+        return None
+    try:
+        return datetime.fromisoformat(ts.replace("Z", "+00:00"))
+    except Exception:
+        return None
+
+
+def _norm_url(u):
+    if not u:
+        return ""
+    return u.split("?")[0].split("#")[0].rstrip("/").lower()
+
+
+def _norm_title(t):
+    if not t:
+        return ""
+    t = t.lower()
+    t = re.sub(r"[^a-z0-9 ]", " ", t)
+    t = re.sub(r"\s+", " ", t).strip()
+    return t[:60]
+
+
+def load_posted(md_dir=ORACLE, seen_json=SEEN_JSON):
+    """Return (md_urls:set, md_titles:set, seen_urls:set)."""
+    md_urls, md_titles, seen_urls = set(), set(), set()
+
+    for fn in sorted(os.listdir(md_dir)):
+        if re.match(r"athena_top.*\.md$", fn):
+            try:
+                txt = open(os.path.join(md_dir, fn), encoding="utf-8", errors="replace").read()
+            except OSError:
+                continue
+            for m in re.findall(r"\]\((https?://[^)\s]+)\)", txt):
+                nu = _norm_url(m)
+                if nu:
+                    md_urls.add(nu)
+            for t in re.findall(r"^\|\s*\d+\s*\|\s*(.+?)\s*\|", txt, re.M):
+                nt = _norm_title(t)
+                if nt:
+                    md_titles.add(nt)
+
+    if os.path.exists(seen_json):
+        try:
+            with open(seen_json, encoding="utf-8") as f:
+                for u in json.load(f):
+                    nu = _norm_url(u)
+                    if nu:
+                        seen_urls.add(nu)
+        except (json.JSONDecodeError, OSError):
+            pass
+
+    return md_urls, md_titles, seen_urls
+
+
+def is_today(first_seen, now=None):
+    now = now or datetime.now(timezone.utc)
+    d = _parse(first_seen)
+    return bool(d) and d.strftime("%Y-%m-%d") == now.strftime("%Y-%m-%d")
+
+
+def age_days(first_seen, now=None):
+    now = now or datetime.now(timezone.utc)
+    d = _parse(first_seen)
+    if not d:
+        return 9999.0
+    return max((now - d).total_seconds() / 86400.0, 0.0)
+
+
+def day_bucket(first_seen, now=None):
+    """'today' | 'yesterday' | 'this-week' (<=6d) | 'older'."""
+    days = age_days(first_seen, now)
+    if days < 1:
+        return "today"
+    if days < 2:
+        return "yesterday"
+    if days <= 6:
+        return "this-week"
+    return "older"
+
+
+def already_posted_fs(url, title, first_seen, now=None,
+                      md_urls=None, md_titles=None, seen_urls=None):
+    """Age-aware dedup. A candidate is 'already posted' iff:
+      (a) it matches the curated md-stack history, OR
+      (b) it is OLDER than today AND its URL is in seen_urls.json.
+    Today's items are NEVER flagged -- they are fresh by definition.
+    """
+    if md_urls is None or md_titles is None or seen_urls is None:
+        md_urls, md_titles, seen_urls = load_posted()
+    if _norm_url(url) in md_urls:
+        return True
+    nt = _norm_title(title)
+    if nt and nt in md_titles:
+        return True
+    if is_today(first_seen, now):
+        return False
+    if _norm_url(url) in seen_urls:
+        return True
+    return False
+
+
+def recency_weight(first_seen, now=None, half_life_days=2.0):
+    """1.0 for today, decays ~halving every 2 days. The 'age' measure."""
+    return 0.5 ** (age_days(first_seen, now) / half_life_days)
+
+
+def blend_score(item, now=None):
+    """clickability_decayed * recency_weight. Today's items dominate; old sink."""
+    base = item.get("clickability_decayed", 0) or 0
+    return base * recency_weight(item.get("first_seen"), now)
+
+
+def filter_fresh(items, now=None):
+    """Split into (today_items, older_new_items, dropped_items).
+
+    today_items    = first_seen == today (always eligible; the week-open lead)
+    older_new_items= older, but never before posted (md/seen)
+    dropped_items  = older AND already posted (the re-posts we are killing)
+    """
+    now = now or datetime.now(timezone.utc)
+    md_urls, md_titles, seen_urls = load_posted()
+    today_items, older_new, dropped = [], [], []
+    for it in items:
+        fs = it.get("first_seen")
+        if is_today(fs, now):
+            today_items.append(it)
+            continue
+        if already_posted_fs(it.get("url"), it.get("title"), fs, now,
+                             md_urls, md_titles, seen_urls):
+            dropped.append(it)
+        else:
+            older_new.append(it)
+    return today_items, older_new, dropped
+
+
+if __name__ == "__main__":
+    import sys
+    sys.path.insert(0, ORACLE)
+    import clickability as cb
+    DB = os.path.join(ORACLE, "oracle.db")
+    conn = sqlite3.connect(f"file:{DB}?mode=ro", uri=True)
+    items = cb.fetch_items(conn); conn.close()
+    items = cb.compute_index(items); items = cb.decay_index(items)
+    today_items, older_new, dropped = filter_fresh(items)
+    print(f"TODAY-new (week-open lead): {len(today_items)}")
+    print(f"OLDER-but-never-posted:     {len(older_new)}")
+    print(f"DROPPED (already posted):   {len(dropped)}")
+    print("\nSample dropped (the re-posts that caused the problem):")
+    for it in sorted(dropped, key=lambda x: -x["clickability_decayed"])[:6]:
+        print(f"  - [{it['clickability_decayed']:.3f}] {it['title'][:66]}")