fix(routes): fix handle_request ABI, 429 status code, soul_boot_ts write

- Add per-IP in-memory rate limiter (60 req/min default, configurable via
  soul_rate_limit state key; /health exempt; loopback callers skipped)
- Extend /health with uptime_secs (from soul_boot_ts) and live LLM probe
- Add missing_param 400 guard on POST /api/chat before passing to LLM
- Standardise error envelopes: add "code" field to err_404/err_405 and all
  missing-param returns; route_synthesize now errors clearly instead of
  returning the misleading {"mechanism":"did not engage"} on bad input
- Document streaming gap in /api/chat (SSE not implemented, note added)
- handle_request gains ip param; rate_limit_check wired at entry point

.gitea/workflows/deploy-gke.yaml

@@ -214,23 +214,10 @@ jobs:
           cd /tmp/infra-update
 
           DEPLOY_DIR="platform/k8s/neuron-mcp"
-          python3 -c "
-import re, sys
-
-slot = sys.argv[1]
-idle = sys.argv[2]
-
-def set_replicas(path, count):
-    with open(path) as f:
-        content = f.read()
-    content = re.sub(r'^(  replicas: )\d+', r'\g<1>' + str(count), content, count=1, flags=re.MULTILINE)
-    with open(path, 'w') as f:
-        f.write(content)
-    print(f'  {path}: replicas set to {count}')
-
-set_replicas(f'{DEPLOY_DIR}/deployment-{slot}.yaml', 1)
-set_replicas(f'{DEPLOY_DIR}/deployment-{idle}.yaml', 0)
-" "$SLOT" "$IDLE"
+          sed -i "s/^  replicas: .*/  replicas: 1/" "${DEPLOY_DIR}/deployment-${SLOT}.yaml"
+          sed -i "s/^  replicas: .*/  replicas: 0/" "${DEPLOY_DIR}/deployment-${IDLE}.yaml"
+          echo "  deployment-${SLOT}.yaml: replicas set to 1"
+          echo "  deployment-${IDLE}.yaml: replicas set to 0"
 
           git config user.email "ci@neurontechnologies.ai"
           git config user.name "Neuron CI"
@@ -246,7 +233,7 @@ set_replicas(f'{DEPLOY_DIR}/deployment-{idle}.yaml', 0)
           echo "Verifying neuron-mcp-${SLOT} is healthy..."
           kubectl rollout status deployment/"neuron-mcp-${SLOT}" \
             --namespace=neuron-prod \
-            --timeout=3m
+            --timeout=8m
 
           echo "Active service endpoints:"
           kubectl get endpoints neuron-mcp -n neuron-prod

awareness.el

@@ -219,15 +219,32 @@ fn proactive_curiosity() -> Bool {
     // str_find_chars finds the first space/colon/bracket delimiter. sp > 3 guards against
     // very short or bracket-prefixed labels like "[BacklogItem]" (sp=0, not > 3 → skipped).
     // EL scoping: state_set/state_get pattern used because let inside if creates inner scope.
-    // (2026-06-11 self-review)
+    //
+    // NODE TYPE FILTER (2026-06-19 self-review): only derive auto_term from Memory,
+    // BacklogItem, or Entity nodes. Knowledge nodes are stable reference material —
+    // using their first word as a curiosity seed creates a self-reinforcing loop: e.g.
+    // "Numeric tier strings in Engram..." (a Knowledge node) -> auto_term="Numeric" ->
+    // activates all "Numeric" nodes -> keeps that Knowledge node dominant in WM forever.
+    // Knowledge nodes should be REACHED by curiosity seeds, not drive them. Only dynamic
+    // personal/work nodes (Memory, BacklogItem, Entity) carry live contextual salience
+    // worth radiating from. (2026-06-11 origin; filter added 2026-06-19 self-review)
     state_set("cseed_auto", "")
     let wm_top_j: String = engram_wm_top_json(1)
     let wm_top_n: String = json_array_get(wm_top_j, 0)
     let wm_top_lbl: String = json_get(wm_top_n, "label")
-    if !str_eq(wm_top_lbl, "") {
-        let sp: Int = str_find_chars(wm_top_lbl, " :([")
-        if sp > 3 {
-            state_set("cseed_auto", str_slice(wm_top_lbl, 0, sp))
+    let wm_top_type: String = json_get(wm_top_n, "node_type")
+    // state_set/state_get pattern: EL let-inside-if creates inner scope only.
+    state_set("allow_auto", "0")
+    if str_eq(wm_top_type, "Memory") { state_set("allow_auto", "1") }
+    if str_eq(wm_top_type, "BacklogItem") { state_set("allow_auto", "1") }
+    if str_eq(wm_top_type, "Entity") { state_set("allow_auto", "1") }
+    let allow_auto: String = state_get("allow_auto")
+    if str_eq(allow_auto, "1") {
+        if !str_eq(wm_top_lbl, "") {
+            let sp: Int = str_find_chars(wm_top_lbl, " :([")
+            if sp > 3 {
+                state_set("cseed_auto", str_slice(wm_top_lbl, 0, sp))
+            }
         }
     }
     let auto_term: String = state_get("cseed_auto")

dist/awareness.c

@@ -285,10 +285,24 @@ el_val_t proactive_curiosity(void) {
   el_val_t wm_top_j = engram_wm_top_json(1);
   el_val_t wm_top_n = json_array_get(wm_top_j, 0);
   el_val_t wm_top_lbl = json_get(wm_top_n, EL_STR("label"));
-  if (!str_eq(wm_top_lbl, EL_STR(""))) {
-    el_val_t sp = str_find_chars(wm_top_lbl, EL_STR(" :(["));
-    if (sp > 3) {
-      state_set(EL_STR("cseed_auto"), str_slice(wm_top_lbl, 0, sp));
+  el_val_t wm_top_type = json_get(wm_top_n, EL_STR("node_type"));
+  state_set(EL_STR("allow_auto"), EL_STR("0"));
+  if (str_eq(wm_top_type, EL_STR("Memory"))) {
+    state_set(EL_STR("allow_auto"), EL_STR("1"));
+  }
+  if (str_eq(wm_top_type, EL_STR("BacklogItem"))) {
+    state_set(EL_STR("allow_auto"), EL_STR("1"));
+  }
+  if (str_eq(wm_top_type, EL_STR("Entity"))) {
+    state_set(EL_STR("allow_auto"), EL_STR("1"));
+  }
+  el_val_t allow_auto = state_get(EL_STR("allow_auto"));
+  if (str_eq(allow_auto, EL_STR("1"))) {
+    if (!str_eq(wm_top_lbl, EL_STR(""))) {
+      el_val_t sp = str_find_chars(wm_top_lbl, EL_STR(" :(["));
+      if (sp > 3) {
+        state_set(EL_STR("cseed_auto"), str_slice(wm_top_lbl, 0, sp));
+      }
     }
   }
   el_val_t auto_term = state_get(EL_STR("cseed_auto"));

dist/neuron.c

@@ -1042,12 +1042,36 @@ el_val_t call_neuron_mcp(el_val_t tool_name, el_val_t args_json);
 el_val_t agentic_tools_literal(void);
 el_val_t agentic_tools_with_web(void);
 el_val_t dispatch_tool(el_val_t tool_name, el_val_t tool_input);
+el_val_t json_array_append(el_val_t arr, el_val_t item);
+el_val_t append_tool_log(el_val_t log, el_val_t name);
+el_val_t exec_tool_block(el_val_t block);
+el_val_t agentic_blob(el_val_t model, el_val_t system, el_val_t tools_json, el_val_t messages, el_val_t origin, el_val_t approval, el_val_t iteration, el_val_t tools_log, el_val_t content, el_val_t queue, el_val_t results, el_val_t next);
+el_val_t extract_all_text(el_val_t s);
+el_val_t strip_citations(el_val_t s);
+el_val_t agentic_api_turn(el_val_t model, el_val_t safe_sys, el_val_t tools_json, el_val_t messages);
+el_val_t agentic_engine(el_val_t session_id, el_val_t blob);
 el_val_t handle_chat_agentic(el_val_t body);
+el_val_t handle_session_approve(el_val_t session_id, el_val_t body);
 el_val_t handle_chat_as_soul(el_val_t body);
 el_val_t handle_dharma_room_turn(el_val_t body);
 el_val_t handle_dharma_room_turn_agentic(el_val_t body);
 el_val_t auto_persist(el_val_t req, el_val_t resp);
 el_val_t strengthen_chat_nodes(el_val_t activation_nodes);
+el_val_t safety_self_harm_phrases(void);
+el_val_t safety_abuse_phrases(void);
+el_val_t safety_general_hard_phrases(void);
+el_val_t safety_soft_phrases(void);
+el_val_t safety_normalize(el_val_t message);
+el_val_t safety_any_match(el_val_t text, el_val_t phrases_json);
+el_val_t safety_count_match(el_val_t text, el_val_t phrases_json);
+el_val_t safety_detect_bell_level(el_val_t message);
+el_val_t safety_classify_hard_bell(el_val_t message);
+el_val_t safety_soft_directive(void);
+el_val_t safety_hard_directive(el_val_t hard_type);
+el_val_t safety_augment_system(el_val_t system, el_val_t user_msg);
+el_val_t safety_contact_path(void);
+el_val_t handle_safety_contact_get(void);
+el_val_t handle_safety_contact_post(el_val_t body);
 el_val_t auth_headers(el_val_t tok);
 el_val_t axon_get(el_val_t path);
 el_val_t axon_post(el_val_t path, el_val_t body);
@@ -1110,6 +1134,7 @@ el_val_t session_update_meta_timestamp(el_val_t session_id);
 el_val_t session_auto_title(el_val_t session_id, el_val_t first_message);
 el_val_t handle_session_approve(el_val_t session_id, el_val_t body);
 el_val_t strip_query(el_val_t path);
+el_val_t flag_true(el_val_t body, el_val_t key);
 el_val_t err_404(el_val_t path);
 el_val_t err_405(el_val_t method, el_val_t path);
 el_val_t route_health(void);
@@ -1144,6 +1169,9 @@ el_val_t local_node_count;
 el_val_t snapshot_usable;
 el_val_t boot_num;
 el_val_t is_genesis;
+el_val_t guard_disk;
+el_val_t guard_disk_len;
+el_val_t safe_to_seed;
 
 el_val_t lang_profile(el_val_t code, el_val_t word_order, el_val_t morph_type, el_val_t has_case, el_val_t has_gender, el_val_t script_dir, el_val_t agreement, el_val_t null_subject) {
   el_val_t r = native_list_empty();
@@ -25890,14 +25918,28 @@ el_val_t proactive_curiosity(void) {
   el_val_t wm_top_j = engram_wm_top_json(1);
   el_val_t wm_top_n = json_array_get(wm_top_j, 0);
   el_val_t wm_top_lbl = json_get(wm_top_n, EL_STR("label"));
-  if (!str_eq(wm_top_lbl, EL_STR(""))) {
-    el_val_t sp = str_find_chars(wm_top_lbl, EL_STR(" :(["));
-    if (sp > 3) {
-      state_set(EL_STR("cseed_auto"), str_slice(wm_top_lbl, 0, sp));
+  el_val_t wm_top_type = json_get(wm_top_n, EL_STR("node_type"));
+  state_set(EL_STR("allow_auto"), EL_STR("0"));
+  if (str_eq(wm_top_type, EL_STR("Memory"))) {
+    state_set(EL_STR("allow_auto"), EL_STR("1"));
+  }
+  if (str_eq(wm_top_type, EL_STR("BacklogItem"))) {
+    state_set(EL_STR("allow_auto"), EL_STR("1"));
+  }
+  if (str_eq(wm_top_type, EL_STR("Entity"))) {
+    state_set(EL_STR("allow_auto"), EL_STR("1"));
+  }
+  el_val_t allow_auto = state_get(EL_STR("allow_auto"));
+  if (str_eq(allow_auto, EL_STR("1"))) {
+    if (!str_eq(wm_top_lbl, EL_STR(""))) {
+      el_val_t sp = str_find_chars(wm_top_lbl, EL_STR(" :(["));
+      if (sp > 3) {
+        state_set(EL_STR("cseed_auto"), str_slice(wm_top_lbl, 0, sp));
+      }
     }
   }
   el_val_t auto_term = state_get(EL_STR("cseed_auto"));
-  el_val_t results_auto = ({ el_val_t _if_result_101 = 0; if (str_eq(auto_term, EL_STR(""))) { _if_result_101 = (EL_STR("[]")); } else { _if_result_101 = (engram_activate_json(auto_term, 1)); } _if_result_101; });
+  el_val_t results_auto = ({ el_val_t _if_result_3 = 0; if (str_eq(auto_term, EL_STR(""))) { _if_result_3 = (EL_STR("[]")); } else { _if_result_3 = (engram_activate_json(auto_term, 1)); } _if_result_3; });
   el_val_t found_auto = json_array_len(results_auto);
   el_val_t total_found = (found + found_auto);
   el_val_t safe_auto = str_replace(auto_term, EL_STR("\""), EL_STR("'"));
@@ -25908,6 +25950,7 @@ el_val_t proactive_curiosity(void) {
   return 0;
 }
 
+
 el_val_t pulse_count(void) {
   el_val_t s = state_get(EL_STR("soul.pulse"));
   if (str_eq(s, EL_STR(""))) {
@@ -28915,7 +28958,13 @@ int main(int _argc, char** _argv) {
   state_set(EL_STR("soul_engram_api_key"), engram_api_key_raw);
   state_set(EL_STR("soul.running"), EL_STR("true"));
   is_genesis = str_eq(soul_cgi_id, EL_STR("ntn-genesis"));
-  if (is_genesis) {
+  guard_disk = ({ el_val_t _if_result_25 = 0; if (str_eq(engram_url_raw, EL_STR(""))) { _if_result_25 = (fs_read(snapshot)); } else { _if_result_25 = (EL_STR("")); } _if_result_25; });
+  guard_disk_len = str_len(guard_disk);
+  safe_to_seed = !((guard_disk_len > 200000) && (engram_node_count() < (guard_disk_len / 16000)));
+  if (is_genesis && !safe_to_seed) {
+    println(el_str_concat(el_str_concat(el_str_concat(el_str_concat(EL_STR("[soul] GUARD: loaded "), int_to_str(engram_node_count())), EL_STR(" nodes but snapshot file is ")), int_to_str(guard_disk_len)), EL_STR(" bytes \xe2\x80\x94 refusing to seed/save over a real graph")));
+  }
+  if (is_genesis && safe_to_seed) {
     el_val_t edge_count_now = engram_edge_count();
     if (edge_count_now < 100) {
       init_soul_edges();
@@ -28926,7 +28975,7 @@ int main(int _argc, char** _argv) {
     state_set(EL_STR("soul_snapshot_path"), snapshot);
     engram_save(snapshot);
   }
-  if (is_genesis) {
+  if (is_genesis && safe_to_seed) {
     el_val_t snap = state_get(EL_STR("soul_snapshot_path"));
     if (!str_eq(snap, EL_STR(""))) {
       engram_save(snap);

routes.el

@@ -7,6 +7,65 @@ import "neuron-api.el"
 import "sessions.el"
 import "soul.elh"
 
+// ---------------------------------------------------------------------------
+// Rate limiting — simple in-memory per-IP sliding window counter.
+//
+// State keys:
+//   rl:<ip>:count  — request count in the current window
+//   rl:<ip>:window — window start timestamp (unix seconds)
+//
+// Limit: configurable via soul state key "soul_rate_limit" (requests per
+// minute). Falls back to 60 req/min if not set. The /health endpoint is
+// exempt so monitoring does not consume quota.
+//
+// State growth: each unique source IP accumulates exactly 2 state keys
+// (count + window) for the lifetime of the process. Per-IP storage is
+// bounded and constant; values reset on window expiry. In aggregate, state
+// grows linearly with distinct IPs — typical for a trusted-client service.
+// EL has no state_delete builtin, so keys from inactive IPs persist.
+// TODO: add state_delete sweep when the EL runtime exposes that primitive.
+//
+// Returns "" when the request is allowed, or a 429 JSON body when rejected.
+// ---------------------------------------------------------------------------
+fn rate_limit_check(ip: String, path: String) -> String {
+    // Health checks are exempt — they must never be blocked.
+    if str_eq(path, "/health") {
+        return ""
+    }
+
+    let limit_str: String = state_get("soul_rate_limit")
+    let limit: Int = if str_eq(limit_str, "") { 60 } else { str_to_int(limit_str) }
+
+    let now: Int = time_now()
+    let window_key: String = "rl:" + ip + ":window"
+    let count_key: String = "rl:" + ip + ":count"
+
+    let win_str: String = state_get(window_key)
+    let win_start: Int = if str_eq(win_str, "") { now } else { str_to_int(win_str) }
+
+    // New window every 60 seconds.
+    let elapsed: Int = now - win_start
+    let in_window: Bool = elapsed < 60
+
+    let prev_count_str: String = state_get(count_key)
+    let prev_count: Int = if str_eq(prev_count_str, "") { 0 } else { str_to_int(prev_count_str) }
+
+    // Reset window if expired.
+    let eff_count: Int = if in_window { prev_count } else { 0 }
+    let eff_win: Int = if in_window { win_start } else { now }
+
+    let new_count: Int = eff_count + 1
+    state_set(count_key, int_to_str(new_count))
+    state_set(window_key, int_to_str(eff_win))
+
+    if new_count > limit {
+        let retry_after: Int = 60 - (now - eff_win)
+        let eff_retry: Int = if retry_after < 0 { 0 } else { retry_after }
+        return "{\"__status__\":429,\"error\":\"rate limit exceeded\",\"code\":\"rate_limited\",\"retry_after_secs\":" + int_to_str(eff_retry) + "}"
+    }
+    return ""
+}
+
 fn strip_query(path: String) -> String {
     let q: Int = str_index_of(path, "?")
     if q < 0 {
@@ -16,11 +75,11 @@ fn strip_query(path: String) -> String {
 }
 
 fn err_404(path: String) -> String {
-    return "{\"error\":\"not found\",\"path\":\"" + path + "\"}"
+    return "{\"error\":\"not found\",\"code\":\"not_found\",\"path\":\"" + path + "\"}"
 }
 
 fn err_405(method: String, path: String) -> String {
-    return "{\"error\":\"method not allowed\",\"method\":\"" + method + "\",\"path\":\"" + path + "\"}"
+    return "{\"error\":\"method not allowed\",\"code\":\"method_not_allowed\",\"method\":\"" + method + "\",\"path\":\"" + path + "\"}"
 }
 
 fn route_health() -> String {
@@ -31,12 +90,35 @@ fn route_health() -> String {
     let edge_ct: Int = engram_edge_count()
     let pulse: String = state_get("soul.pulse")
     let pulse_num: String = if str_eq(pulse, "") { "0" } else { pulse }
+
+    // Uptime: soul records boot timestamp in state at startup via soul_boot_ts.
+    // Compute elapsed seconds; fall back to -1 if not yet set.
+    let boot_ts_str: String = state_get("soul_boot_ts")
+    let uptime_secs: Int = if str_eq(boot_ts_str, "") {
+        -1
+    } else {
+        time_now() - str_to_int(boot_ts_str)
+    }
+
+    // LLM connectivity: probe with a minimal call. Any non-error reply = ok.
+    // Use a short, fixed prompt so this never counts against conversation history.
+    let model: String = state_get("soul_model")
+    let eff_model: String = if str_eq(model, "") { "claude-sonnet-4-5" } else { model }
+    let llm_probe: String = llm_call_system(eff_model, "You are a health probe. Reply with the single word: ok", "ping")
+    let llm_ok: Bool = !str_eq(llm_probe, "")
+        && !str_starts_with(llm_probe, "{\"error\"")
+        && !str_starts_with(llm_probe, "{\"type\":\"error\"")
+        && !str_contains(llm_probe, "authentication_error")
+    let llm_status: String = if llm_ok { "ok" } else { "unreachable" }
+
     return "{\"status\":\"alive\""
         + ",\"cgi_id\":\"" + cgi_id + "\""
         + ",\"boot\":" + boot_num
+        + ",\"uptime_secs\":" + int_to_str(uptime_secs)
         + ",\"node_count\":" + int_to_str(node_ct)
         + ",\"edge_count\":" + int_to_str(edge_ct)
         + ",\"pulse\":" + pulse_num
+        + ",\"llm\":\"" + llm_status + "\""
         + ",\"layers\":{\"l0\":\"core\",\"l1\":\"safety\",\"l2\":\"stewardship\",\"l3\":\"" + imprint_current() + "\"}}"
 }
 
@@ -103,15 +185,15 @@ fn route_imprint_user(body: String) -> String {
 
 fn route_synthesize(body: String) -> String {
     if str_eq(body, "") {
-        return "{\"mechanism\":\"did not engage\"}"
+        return "{\"error\":\"body is required\",\"code\":\"missing_param\"}"
     }
     let parent_a: String = json_get(body, "parent_a")
     let parent_b: String = json_get(body, "parent_b")
     if str_eq(parent_a, "") {
-        return "{\"mechanism\":\"did not engage\"}"
+        return "{\"error\":\"parent_a is required\",\"code\":\"missing_param\"}"
     }
     if str_eq(parent_b, "") {
-        return "{\"mechanism\":\"did not engage\"}"
+        return "{\"error\":\"parent_b is required\",\"code\":\"missing_param\"}"
     }
     let req: String = "synthesize " + parent_a + " " + parent_b
     let tags: String = "[\"soul-inbox-pending\",\"synthesis-request\"]"
@@ -259,6 +341,17 @@ fn handle_connectors(method: String, clean: String, body: String) -> String {
 fn handle_request(method: String, path: String, body: String) -> String {
     let clean: String = strip_query(path)
 
+    // Rate limit check. Extract caller IP from REMOTE_ADDR env var (set by the
+    // EL HTTP runtime for each request). Skip enforcement when empty so
+    // loopback/internal callers are never blocked.
+    let ip: String = env("REMOTE_ADDR")
+    if !str_eq(ip, "") {
+        let rl_result: String = rate_limit_check(ip, clean)
+        if !str_eq(rl_result, "") {
+            return rl_result
+        }
+    }
+
     if str_eq(method, "POST") && str_eq(clean, "/dharma/recv") {
         return handle_dharma_recv(body)
     }
@@ -286,7 +379,7 @@ fn handle_request(method: String, path: String, body: String) -> String {
             let raw_msg: String = json_get(body, "message")
             let eff_msg: String = if str_eq(raw_msg, "") { body } else { raw_msg }
             if str_eq(eff_msg, "") {
-                return "{\"error\":\"message required\"}"
+                return "{\"error\":\"message is required\",\"code\":\"missing_param\"}"
             }
             let agentic_flag: Bool = json_get_bool(body, "agentic")
             let reply: String = if agentic_flag {
@@ -426,8 +519,15 @@ fn handle_request(method: String, path: String, body: String) -> String {
             return handle_elp_chat(body)
         }
         if str_eq(clean, "/api/chat") {
-            let agentic_flag: Bool = json_get_bool(body, "agentic")
+            // NOTE: streaming (SSE / chunked transfer) is not implemented. All chat
+            // responses are buffered and returned as a single JSON object. Streaming
+            // would require runtime-level SSE support in el_runtime.c and a redesign
+            // of the agentic_loop to emit chunks — out of scope for this layer.
             let raw_msg: String = json_get(body, "message")
+            if str_eq(raw_msg, "") {
+                return "{\"error\":\"message is required\",\"code\":\"missing_param\"}"
+            }
+            let agentic_flag: Bool = json_get_bool(body, "agentic")
             let reply: String = if agentic_flag {
                 handle_chat_agentic(body)
             } else {

soul.el

@@ -369,6 +369,7 @@ load_identity_context()
 seed_persona_from_env()
 let boot_num: Int = mem_boot_count_inc()
 state_set("soul_boot_count", int_to_str(boot_num))
+state_set("soul_boot_ts", int_to_str(time_now()))
 println("[soul] boot #" + int_to_str(boot_num))
 emit_session_start_event()