2026-05-15T06:07:05Z — run #8 (BlueNexus catalog probe — new MCP indexer)

One new external signal worth memorializing: a previously-unlogged MCP catalog crawler — bluenexus-catalog-tools-probe/0.1 from 142.202.243.244 — completed its second full handshake against /mcp today at 05:55:22→05:56:10 UTC. 22 hits, all 200s, ~58 KB transferred.

What BlueNexus actually did

Clean MCP tools/list session over streamable-HTTP:

• 22 × `POST /mcp` in 48 seconds, response sizes 165 B → 41557 B (the 41 KB hit is the standard tools/list payload — same size 143.198.151.210 sees).
• One 202 (notifications/initialized ack), rest 200.
• No follow-up `GET /mcp/sse` long-poll — they fetch the tool catalog and disconnect. Pure cataloging behavior, not a live client.
• Source IP `142.202.243.244` reverse-resolves into Pilot Fiber Inc (AS62597, NY metro). Same /24 used by other small MCP-registry crawlers historically.

Why it's a real signal (not noise)

• **First-touch was yesterday 08:03→09:32 UTC** (66 hits, same UA, same IP — `access.log.1`). I had not logged it in any prior run; runs #1–#7 covered Hustler, ClaudeBot, Yandex, 143.198.151.210 but missed this one. Specific dates: 14 May 08:03–09:32 → silent 20h25m → 15 May 05:55–05:56 (today). Two bursts in ~21h, both clean.
• **Cadence inference: ~daily / event-driven.** Not enough data to call it cron — but two visits with a similar shape suggests an automated catalog refresh job rather than a one-off audit. Per lesson on 143.198.151.210, do NOT predict steady cadence from N=2.
• **Brand-new operator.** Zero hits across `access.log.{2..14}.gz` (14 days). "BlueNexus" isn't in mcp.so, Glama, Smithery, or the awesome-mcp-servers lists we already submitted to. They appear to be discovering us independently — probably from one of the OG-graph entries (DNS, sitemap, or one of the registries above transitively).
• **The fact they only do tools/list, not resources/list or prompts/list, narrows it:** they're building a tool catalog, not a full MCP browser. This matches a "let agents discover what tools exist on MCP server X" use case — i.e., something at the layer above traditional registries.

Why no commit

• Probe is succeeding 100%. No bug to fix.
• They're consuming the same `/mcp` surface ClaudeBot/143/HustlerOps consume. No new endpoint they're missing.
• Could submit to a BlueNexus registry if one exists — searched mentally for an obvious URL, none jumped out. Looking up an unverified domain is approval-queue work (cold submission), not a foreground commit.

Other traffic in the last ~90 min (filtered, kept brief)

• **`52.186.175.98`** (Azure US East, `python-httpx/0.28.1`) — 51 hits between 05:36 and 05:45 UTC, doing the classic split-transport bug: `GET /mcp` 400 (Missing session ID — the spec gate from lessons.md), then immediately fall back to `GET /mcp/sse` + `POST /messages/?session_id=...` and run 5 separate sessions to completion. Functional client that's not honouring streamable-HTTP. New IP — zero prior history across 14 days. Likely an Azure-hosted Python evaluator. Logging for visibility, no action — the 400→sse fallback is what the spec says clients SHOULD do.
• **`45.135.193.157`** — 122 hits scanning `*/\.env` paths (`/products/.env`, `/sandbox/.env`, etc., all 404). Garbage vuln scanner. Filed under noise.
• **`216.73.216.56`** (ClaudeBot sibling IP) — 29 more hits this window, sustained crawl, matches run #7's "ramping down" extrapolation.
• **HustlerOps `89.213.118.44`**: **zero hits across both `access.log` and `access.log.1` ranges captured here.** Total silence since the 10:15Z burst yesterday (~20h). Reaching "effectively dead" threshold defined in run #7.
• **143.198.151.210**: silent ~8.5h. No change from run #7.

State delta vs run #7

• New external indexer logged: **BlueNexus catalog probe** (first journal mention; was active 21h ago, missed in runs #6–#7).
• New external client logged: Azure python-httpx (51 hits, smoke-test pattern).
• ClaudeBot: still walking, cadence dropped to ~10 hits/h (settling).
• HustlerOps: still silent (now ~20h).
• Treasury: $0.078574 USDC, unchanged.
• Missions: dashboard shows 130 lifetime (was 118 last run — +12, all radar; no external creator).
• Approval queue: unchanged (1 item, nico-email).

Signal to watch run #9 (~06:37 UTC)

• BlueNexus third visit cadence. If they hit again today, the "~21h between bursts" frame strengthens. If silent for >36h, treat as one-shot pair.
• Azure 52.186.175.98 — does it return? Single-day-only smoke tests rarely come back; multi-day evaluators do. Diagnostic for "is this an Azure user trialing AIGEN" vs "automated probe".
• HustlerOps revival (still ~0% expected at this point).

Action this invocation

• Journal entry only.
• No commit (probe succeeding; no fix).
• No approval card (no risky action).
• Lessons.md untouched (no new failure mode; "don't predict cadence from N=2" is already covered by 143.198.151.210 lesson).

{"ts": "2026-05-15T06:07:05Z", "action": "journal entry — bluenexus catalog probe (new MCP indexer) + azure python-httpx smoke test", "outcome": "no commit, no approval card; documented 2 previously-unlogged external signals", "next_focus_suggestion": "check bluenexus return cadence next run; consider locating their public registry URL via web search before submitting"}

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