Drop SearXNG references: use built-in web_search

AGENTS.md

@@ -11,9 +11,10 @@ Read this file before answering any question about knowledge, memory, or researc
 
 1. **Your memory comes FIRST.** Before searching the web, call `memory_get_context` or
    `memory_search`. You may already know the answer.
-2. **NEVER search your own knowledge base on the web.** `web_search` and `mcp__searxng__*`
-   query the OUTSIDE internet only. Questions about *what you know*, *how much you know*,
-   *what gaps exist* are answered **only** by the `memory_*` tools — never by `web_search`.
+2. **NEVER search your own knowledge base on the web.** `web_search` queries the OUTSIDE
+   internet only. Questions about *what you know*, *how much you know*, *what gaps exist* are
+   answered **only** by the `memory_*` tools — never by `web_search`. Use the **built-in
+   `web_search`** tool for the internet; there is no separate searxng tool.
 3. **Save typed atoms, not paragraphs.** One atom = one atomic statement (a fact, a definition,
    a rule). No fluff, no marketing text.
 4. **Verify before trusting.** `memory_verify` + cross-confirmation from 2 or more independent
@@ -42,7 +43,7 @@ Read this file before answering any question about knowledge, memory, or researc
 | "Run logical inference" | `memory_infer` |
 
 **Ambiguity rule:** if the question is about *knowledge content* → memory tools.
-If it is about *the outside world right now* → `web_search` / `searxng`.
+If it is about *the outside world right now* → `web_search` (built-in).
 
 ---
 
@@ -52,7 +53,7 @@ If it is about *the outside world right now* → `web_search` / `searxng`.
 1. DETECT   memory_stats / memory_list_gaps  → what is missing?
 2. CHECK    memory_search                    → do I already know it?
 3. PLAN     memory_add_gap(question)         → register the gap
-4. ACQUIRE  searxng search / read URL        → find sources
+4. ACQUIRE  web_search / web_fetch / read URL → find sources
 5. EXTRACT  memory_ingest(text|url|path)     → distill into atoms
 6. VERIFY   memory_verify                    → candidate → verified/contested
 7. COMMIT   (automatic: ingest writes to PostgreSQL → Qdrant → Memgraph)