feat(runtime): add engram_wm_*, engram_load_merge, http_serve_async — needed by soul CI

fix(runtime): pass model through to LLM API + UTF-8 JSON escaping

.gitea/workflows/ci-dev.yaml

@@ -22,7 +22,10 @@ jobs:
       - name: Install build dependencies
         run: |
           apt-get update -qq
-          apt-get install -y gcc libcurl4-openssl-dev
+          apt-get install -y gcc libcurl4-openssl-dev apt-transport-https ca-certificates
+          echo "deb [trusted=yes] https://packages.cloud.google.com/apt cloud-sdk main" \
+            > /etc/apt/sources.list.d/google-cloud-sdk.list
+          apt-get update -qq && apt-get install -y google-cloud-cli
 
       # Seed: use the committed linux-amd64 binary as the bootstrap
       - name: Bootstrap from committed linux binary (seed)
@@ -84,13 +87,22 @@ jobs:
           bash tests/html_sanitizer/run.sh
 
       # Native El test suites (elc --test, compile-link-run)
+      # el_runtime.c is precompiled to .o once and reused by all 8 modules.
+      - name: Precompile el_runtime.o
+        run: |
+          set -euo pipefail
+          RUNTIME="$(pwd)/el-compiler/runtime"
+          gcc -O2 -c -I "$RUNTIME" "$RUNTIME/el_runtime.c" \
+            -o /tmp/el_runtime.o
+          echo "el_runtime.o compiled"
+
       - name: Run tests - native (core)
         run: |
           set -euo pipefail
           ELC="$(pwd)/dist/platform/elc"
           RUNTIME="$(pwd)/el-compiler/runtime"
           "$ELC" --test tests/native/test_core.el > /tmp/el_native_core.c
-          gcc -O2 -I "$RUNTIME" /tmp/el_native_core.c "$RUNTIME/el_runtime.c" \
+          gcc -O2 -I "$RUNTIME" /tmp/el_native_core.c /tmp/el_runtime.o \
             -lcurl -lssl -lcrypto -lpthread -lm -o /tmp/el_native_core
           /tmp/el_native_core
 
@@ -100,7 +112,7 @@ jobs:
           ELC="$(pwd)/dist/platform/elc"
           RUNTIME="$(pwd)/el-compiler/runtime"
           "$ELC" --test tests/native/test_text.el > /tmp/el_native_text.c
-          gcc -O2 -I "$RUNTIME" /tmp/el_native_text.c "$RUNTIME/el_runtime.c" \
+          gcc -O2 -I "$RUNTIME" /tmp/el_native_text.c /tmp/el_runtime.o \
             -lcurl -lssl -lcrypto -lpthread -lm -o /tmp/el_native_text
           /tmp/el_native_text
 
@@ -110,7 +122,7 @@ jobs:
           ELC="$(pwd)/dist/platform/elc"
           RUNTIME="$(pwd)/el-compiler/runtime"
           "$ELC" --test tests/native/test_string.el > /tmp/el_native_string.c
-          gcc -O2 -I "$RUNTIME" /tmp/el_native_string.c "$RUNTIME/el_runtime.c" \
+          gcc -O2 -I "$RUNTIME" /tmp/el_native_string.c /tmp/el_runtime.o \
             -lcurl -lssl -lcrypto -lpthread -lm -o /tmp/el_native_string
           /tmp/el_native_string
 
@@ -120,7 +132,7 @@ jobs:
           ELC="$(pwd)/dist/platform/elc"
           RUNTIME="$(pwd)/el-compiler/runtime"
           "$ELC" --test tests/native/test_math.el > /tmp/el_native_math.c
-          gcc -O2 -I "$RUNTIME" /tmp/el_native_math.c "$RUNTIME/el_runtime.c" \
+          gcc -O2 -I "$RUNTIME" /tmp/el_native_math.c /tmp/el_runtime.o \
             -lcurl -lssl -lcrypto -lpthread -lm -o /tmp/el_native_math
           /tmp/el_native_math
 
@@ -130,7 +142,7 @@ jobs:
           ELC="$(pwd)/dist/platform/elc"
           RUNTIME="$(pwd)/el-compiler/runtime"
           "$ELC" --test tests/native/test_state.el > /tmp/el_native_state.c
-          gcc -O2 -I "$RUNTIME" /tmp/el_native_state.c "$RUNTIME/el_runtime.c" \
+          gcc -O2 -I "$RUNTIME" /tmp/el_native_state.c /tmp/el_runtime.o \
             -lcurl -lssl -lcrypto -lpthread -lm -o /tmp/el_native_state
           /tmp/el_native_state
 
@@ -140,7 +152,7 @@ jobs:
           ELC="$(pwd)/dist/platform/elc"
           RUNTIME="$(pwd)/el-compiler/runtime"
           "$ELC" --test tests/native/test_time.el > /tmp/el_native_time.c
-          gcc -O2 -I "$RUNTIME" /tmp/el_native_time.c "$RUNTIME/el_runtime.c" \
+          gcc -O2 -I "$RUNTIME" /tmp/el_native_time.c /tmp/el_runtime.o \
             -lcurl -lssl -lcrypto -lpthread -lm -o /tmp/el_native_time
           /tmp/el_native_time
 
@@ -150,7 +162,7 @@ jobs:
           ELC="$(pwd)/dist/platform/elc"
           RUNTIME="$(pwd)/el-compiler/runtime"
           "$ELC" --test tests/native/test_json.el > /tmp/el_native_json.c
-          gcc -O2 -I "$RUNTIME" /tmp/el_native_json.c "$RUNTIME/el_runtime.c" \
+          gcc -O2 -I "$RUNTIME" /tmp/el_native_json.c /tmp/el_runtime.o \
             -lcurl -lssl -lcrypto -lpthread -lm -o /tmp/el_native_json
           /tmp/el_native_json
 
@@ -160,7 +172,7 @@ jobs:
           ELC="$(pwd)/dist/platform/elc"
           RUNTIME="$(pwd)/el-compiler/runtime"
           "$ELC" --test tests/native/test_env.el > /tmp/el_native_env.c
-          gcc -O2 -I "$RUNTIME" /tmp/el_native_env.c "$RUNTIME/el_runtime.c" \
+          gcc -O2 -I "$RUNTIME" /tmp/el_native_env.c /tmp/el_runtime.o \
             -lcurl -lssl -lcrypto -lpthread -lm -o /tmp/el_native_env
           /tmp/el_native_env
 
@@ -170,7 +182,7 @@ jobs:
           ELC="$(pwd)/dist/platform/elc"
           RUNTIME="$(pwd)/el-compiler/runtime"
           "$ELC" --test tests/native/test_fs.el > /tmp/el_native_fs.c
-          gcc -O2 -I "$RUNTIME" /tmp/el_native_fs.c "$RUNTIME/el_runtime.c" \
+          gcc -O2 -I "$RUNTIME" /tmp/el_native_fs.c /tmp/el_runtime.o \
             -lcurl -lssl -lcrypto -lpthread -lm -o /tmp/el_native_fs
           /tmp/el_native_fs
 
@@ -203,9 +215,6 @@ jobs:
           GCP_SA_KEY: ${{ secrets.GCP_SA_KEY }}
         run: |
           echo "${GCP_SA_KEY}" > /tmp/gcp-key.json
-          apt-get install -y -qq apt-transport-https ca-certificates curl
-          echo "deb [trusted=yes] https://packages.cloud.google.com/apt cloud-sdk main" > /etc/apt/sources.list.d/google-cloud-sdk.list
-          apt-get update -qq && apt-get install -y google-cloud-cli
           gcloud auth activate-service-account --key-file=/tmp/gcp-key.json
           gcloud config set project neuron-785695
 
@@ -252,4 +261,52 @@ jobs:
             --source=el-compiler/runtime/el_runtime.js
 
           echo "Published El SDK version=${VERSION} to foundation-dev"
+          # Keep key alive for the ci-base rebuild step below
+          # (deleted in that step after docker push)
+
+      - name: Rebuild ci-base with fresh El SDK (dev)
+        # Patches ci-base:dev in-place: pulls the existing image (which has all
+        # system deps — Node, Go, gcloud, Docker CLI, etc.) and overlays the freshly
+        # built El SDK on top. Keeps the full ci-base rebuild fast and incremental.
+        if: github.event_name == 'push'
+        env:
+          GCP_SA_KEY: ${{ secrets.GCP_SA_KEY }}
+        run: |
+          set -euo pipefail
+          CI_BASE="us-central1-docker.pkg.dev/neuron-785695/neuron-ci/ci-base"
+          SHA="${GITHUB_SHA:0:8}"
+
+          echo "${GCP_SA_KEY}" > /tmp/gcp-key.json
+          gcloud auth activate-service-account --key-file=/tmp/gcp-key.json
+          gcloud config set project neuron-785695
+          gcloud auth configure-docker us-central1-docker.pkg.dev --quiet
+
+          # Pull existing ci-base:dev (or fall back to :latest on first run)
+          BASE_TAG="dev"
+          docker pull "${CI_BASE}:dev" || { docker pull "${CI_BASE}:latest" && BASE_TAG="latest"; }
+
+          # Inline Dockerfile — only replaces the El SDK layer
+          cat > /tmp/Dockerfile.ci-base-patch << 'EOF'
+          ARG BASE
+          FROM ${BASE}
+          COPY dist/platform/elc                 /opt/el/dist/platform/elc
+          COPY dist/bin/elb                       /opt/el/dist/bin/elb
+          COPY el-compiler/runtime/el_runtime.c  /opt/el/el-compiler/runtime/el_runtime.c
+          COPY el-compiler/runtime/el_runtime.h  /opt/el/el-compiler/runtime/el_runtime.h
+          COPY el-compiler/runtime/el_runtime.js /opt/el/el-compiler/runtime/el_runtime.js
+          RUN chmod +x /opt/el/dist/platform/elc /opt/el/dist/bin/elb
+          EOF
+
+          docker build \
+            --build-arg BASE="${CI_BASE}:${BASE_TAG}" \
+            --build-arg BUILDKIT_INLINE_CACHE=1 \
+            -f /tmp/Dockerfile.ci-base-patch \
+            -t "${CI_BASE}:dev" \
+            -t "${CI_BASE}:dev-${SHA}" \
+            .
+
+          docker push "${CI_BASE}:dev"
+          docker push "${CI_BASE}:dev-${SHA}"
+
+          echo "ci-base rebuilt: ${CI_BASE}:dev (${SHA})"
           rm -f /tmp/gcp-key.json

.gitea/workflows/ci-stage.yaml

@@ -246,4 +246,51 @@ jobs:
             --source=el-compiler/runtime/el_runtime.h
 
           echo "Published El SDK version=${VERSION} to foundation-stage"
+          # Keep key alive for the ci-base rebuild step below
+          # (deleted in that step after docker push)
+
+      - name: Rebuild ci-base with fresh El SDK (stage)
+        # Patches ci-base:stage in-place: pulls the existing image (which has all
+        # system deps — Node, Go, gcloud, Docker CLI, etc.) and overlays the freshly
+        # built El SDK on top. Keeps the full ci-base rebuild fast and incremental.
+        if: github.event_name == 'push'
+        env:
+          GCP_SA_KEY: ${{ secrets.GCP_SA_KEY }}
+        run: |
+          set -euo pipefail
+          CI_BASE="us-central1-docker.pkg.dev/neuron-785695/neuron-ci/ci-base"
+          SHA="${GITHUB_SHA:0:8}"
+
+          echo "${GCP_SA_KEY}" > /tmp/gcp-key.json
+          gcloud auth activate-service-account --key-file=/tmp/gcp-key.json
+          gcloud config set project neuron-785695
+          gcloud auth configure-docker us-central1-docker.pkg.dev --quiet
+
+          # Pull existing ci-base:stage (system deps stay cached in the base layer)
+          docker pull "${CI_BASE}:stage" || docker pull "${CI_BASE}:latest"
+
+          # Inline Dockerfile — only replaces the El SDK layer
+          cat > /tmp/Dockerfile.ci-base-patch << 'EOF'
+          ARG BASE
+          FROM ${BASE}
+          COPY dist/platform/elc                 /opt/el/dist/platform/elc
+          COPY dist/bin/elb                       /opt/el/dist/bin/elb
+          COPY el-compiler/runtime/el_runtime.c  /opt/el/el-compiler/runtime/el_runtime.c
+          COPY el-compiler/runtime/el_runtime.h  /opt/el/el-compiler/runtime/el_runtime.h
+          COPY el-compiler/runtime/el_runtime.js /opt/el/el-compiler/runtime/el_runtime.js
+          RUN chmod +x /opt/el/dist/platform/elc /opt/el/dist/bin/elb
+          EOF
+
+          docker build \
+            --build-arg BASE="${CI_BASE}:stage" \
+            --build-arg BUILDKIT_INLINE_CACHE=1 \
+            -f /tmp/Dockerfile.ci-base-patch \
+            -t "${CI_BASE}:stage" \
+            -t "${CI_BASE}:stage-${SHA}" \
+            .
+
+          docker push "${CI_BASE}:stage"
+          docker push "${CI_BASE}:stage-${SHA}"
+
+          echo "ci-base rebuilt: ${CI_BASE}:stage (${SHA})"
           rm -f /tmp/gcp-key.json

elp/src/language-profile.elh

@@ -1,46 +1,46 @@
-// auto-generated by elc --emit-header - do not edit
-extern fn lang_profile(code: String, word_order: String, morph_type: String, has_case: String, has_gender: String, script_dir: String, agreement: String, null_subject: String) -> Any
-extern fn lang_get(profile: Any, key: String) -> String
-extern fn lang_profile_en() -> Any
-extern fn lang_profile_ja() -> Any
-extern fn lang_profile_ar() -> Any
-extern fn lang_profile_zh() -> Any
-extern fn lang_profile_de() -> Any
-extern fn lang_profile_es() -> Any
-extern fn lang_profile_fi() -> Any
-extern fn lang_profile_sw() -> Any
-extern fn lang_profile_hi() -> Any
-extern fn lang_profile_ru() -> Any
-extern fn lang_profile_fr() -> Any
-extern fn lang_profile_la() -> Any
-extern fn lang_profile_he() -> Any
-extern fn lang_profile_sa() -> Any
-extern fn lang_profile_got() -> Any
-extern fn lang_profile_non() -> Any
-extern fn lang_profile_enm() -> Any
-extern fn lang_profile_pi() -> Any
-extern fn lang_profile_grc() -> Any
-extern fn lang_profile_ang() -> Any
-extern fn lang_profile_fro() -> Any
-extern fn lang_profile_goh() -> Any
-extern fn lang_profile_sga() -> Any
-extern fn lang_profile_txb() -> Any
-extern fn lang_profile_peo() -> Any
-extern fn lang_profile_akk() -> Any
-extern fn lang_profile_uga() -> Any
-extern fn lang_profile_egy() -> Any
-extern fn lang_profile_sux() -> Any
-extern fn lang_profile_gez() -> Any
-extern fn lang_profile_cop() -> Any
-extern fn lang_from_code(code: String) -> Any
-extern fn lang_default() -> Any
-extern fn lang_is_isolating(profile: Any) -> Bool
-extern fn lang_is_agglutinative(profile: Any) -> Bool
-extern fn lang_is_fusional(profile: Any) -> Bool
-extern fn lang_is_polysynthetic(profile: Any) -> Bool
-extern fn lang_is_rtl(profile: Any) -> Bool
-extern fn lang_has_null_subject(profile: Any) -> Bool
-extern fn lang_has_case(profile: Any) -> Bool
-extern fn lang_has_gender(profile: Any) -> Bool
-extern fn lang_word_order(profile: Any) -> String
-extern fn lang_code(profile: Any) -> String
+// auto-generated by elc --emit-header — do not edit
+extern fn lang_profile(code: String, word_order: String, morph_type: String, has_case: String, has_gender: String, script_dir: String, agreement: String, null_subject: String) -> [String]
+extern fn lang_get(profile: [String], key: String) -> String
+extern fn lang_profile_en() -> [String]
+extern fn lang_profile_ja() -> [String]
+extern fn lang_profile_ar() -> [String]
+extern fn lang_profile_zh() -> [String]
+extern fn lang_profile_de() -> [String]
+extern fn lang_profile_es() -> [String]
+extern fn lang_profile_fi() -> [String]
+extern fn lang_profile_sw() -> [String]
+extern fn lang_profile_hi() -> [String]
+extern fn lang_profile_ru() -> [String]
+extern fn lang_profile_fr() -> [String]
+extern fn lang_profile_la() -> [String]
+extern fn lang_profile_he() -> [String]
+extern fn lang_profile_sa() -> [String]
+extern fn lang_profile_got() -> [String]
+extern fn lang_profile_non() -> [String]
+extern fn lang_profile_enm() -> [String]
+extern fn lang_profile_pi() -> [String]
+extern fn lang_profile_grc() -> [String]
+extern fn lang_profile_ang() -> [String]
+extern fn lang_profile_fro() -> [String]
+extern fn lang_profile_goh() -> [String]
+extern fn lang_profile_sga() -> [String]
+extern fn lang_profile_txb() -> [String]
+extern fn lang_profile_peo() -> [String]
+extern fn lang_profile_akk() -> [String]
+extern fn lang_profile_uga() -> [String]
+extern fn lang_profile_egy() -> [String]
+extern fn lang_profile_sux() -> [String]
+extern fn lang_profile_gez() -> [String]
+extern fn lang_profile_cop() -> [String]
+extern fn lang_from_code(code: String) -> [String]
+extern fn lang_default() -> [String]
+extern fn lang_is_isolating(profile: [String]) -> Bool
+extern fn lang_is_agglutinative(profile: [String]) -> Bool
+extern fn lang_is_fusional(profile: [String]) -> Bool
+extern fn lang_is_polysynthetic(profile: [String]) -> Bool
+extern fn lang_is_rtl(profile: [String]) -> Bool
+extern fn lang_has_null_subject(profile: [String]) -> Bool
+extern fn lang_has_case(profile: [String]) -> Bool
+extern fn lang_has_gender(profile: [String]) -> Bool
+extern fn lang_word_order(profile: [String]) -> String
+extern fn lang_code(profile: [String]) -> String

elp/src/morphology-akk.el

@@ -56,6 +56,7 @@
 
 // ── String helpers ─────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn akk_str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology-akk.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn akk_str_ends(s: String, suf: String) -> Bool
 extern fn akk_str_len(s: String) -> Int
 extern fn akk_str_drop_last(s: String, n: Int) -> String

elp/src/morphology-ang.el

@@ -36,6 +36,7 @@
 
 // ── String helpers ─────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn ang_str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology-ang.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn ang_str_ends(s: String, suf: String) -> Bool
 extern fn ang_str_drop_last(s: String, n: Int) -> String
 extern fn ang_str_last_char(s: String) -> String

elp/src/morphology-ar.el

@@ -21,6 +21,7 @@
 
 // ── String helpers ────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn ar_str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology-ar.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn ar_str_ends(s: String, suf: String) -> Bool
 extern fn ar_str_len(s: String) -> Int
 extern fn ar_str_drop_last(s: String, n: Int) -> String

elp/src/morphology-cop.el

@@ -54,6 +54,7 @@
 
 // ── String helpers ──────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn cop_str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology-cop.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn cop_str_ends(s: String, suf: String) -> Bool
 extern fn cop_str_len(s: String) -> Int
 extern fn cop_drop(s: String, n: Int) -> String

elp/src/morphology-de.el

@@ -26,6 +26,7 @@
 //  Dat:    dem     der     dem     den
 //  Gen:    des     der     des     der
 
+import "morphology.el"
 fn de_article_def(gender: String, gram_case: String, number: String) -> String {
     if str_eq(number, "pl") {
         if str_eq(gram_case, "nom") { return "die" }

elp/src/morphology-de.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn de_article_def(gender: String, gram_case: String, number: String) -> String
 extern fn de_article_indef(gender: String, gram_case: String, number: String) -> String
 extern fn de_article(gender: String, gram_case: String, number: String, definite: String) -> String

elp/src/morphology-egy.el

@@ -52,6 +52,7 @@
 
 // ── String helpers ──────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn egy_str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology-egy.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn egy_str_ends(s: String, suf: String) -> Bool
 extern fn egy_str_len(s: String) -> Int
 extern fn egy_drop(s: String, n: Int) -> String

elp/src/morphology-enm.el

@@ -31,6 +31,7 @@
 
 // ── String helpers ─────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn enm_str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology-enm.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn enm_str_ends(s: String, suf: String) -> Bool
 extern fn enm_drop(s: String, n: Int) -> String
 extern fn enm_first_char(s: String) -> String

elp/src/morphology-es.el

@@ -12,6 +12,7 @@
 
 // ── String helpers (local, matching morphology.el conventions) ────────────────
 
+import "morphology.el"
 fn es_str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology-es.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn es_str_ends(s: String, suf: String) -> Bool
 extern fn es_str_drop_last(s: String, n: Int) -> String
 extern fn es_str_last_char(s: String) -> String

elp/src/morphology-fi.el

@@ -25,6 +25,7 @@
 // If only neutral vowels are found, default to "front" (the conservative choice
 // for borrowed words and those without clear back vowels).
 
+import "morphology.el"
 fn fi_harmony(word: String) -> String {
     let n: Int = str_len(word)
     let i: Int = n - 1

elp/src/morphology-fi.elh

@@ -1,11 +1,11 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn fi_harmony(word: String) -> String
 extern fn fi_suffix(base: String, harmony: String) -> String
 extern fn fi_noun_case(stem: String, gram_case: String, number: String, harmony: String) -> String
 extern fn fi_str_last_char(s: String) -> String
 extern fn fi_apply_case(noun: String, gram_case: String, number: String) -> String
 extern fn fi_verb_stem(dict_form: String) -> String
-extern fn fi_irregular_verb(dict_form: String) -> Any
+extern fn fi_irregular_verb(dict_form: String) -> [String]
 extern fn fi_present_ending(stem: String, person: String, number: String, harmony: String) -> String
 extern fn fi_past_stem(stem: String) -> String
 extern fn fi_past_ending(stem: String, person: String, number: String, harmony: String) -> String
@@ -14,4 +14,4 @@ extern fn fi_negative(verb: String, person: String, number: String) -> String
 extern fn fi_conjugate(verb: String, tense: String, person: String, number: String) -> String
 extern fn fi_question_suffix(harmony: String) -> String
 extern fn fi_make_question(verb_form: String, harmony: String) -> String
-extern fn fi_full_paradigm(noun: String) -> Any
+extern fn fi_full_paradigm(noun: String) -> [String]

elp/src/morphology-fr.el

@@ -19,6 +19,7 @@
 
 // ── String helpers (local, matching morphology.el conventions) ────────────────
 
+import "morphology.el"
 fn fr_str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology-fr.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn fr_str_ends(s: String, suf: String) -> Bool
 extern fn fr_str_drop_last(s: String, n: Int) -> String
 extern fn fr_str_last_char(s: String) -> String

elp/src/morphology-fro.el

@@ -53,6 +53,7 @@
 
 // ── String helpers ─────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn fro_str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology-fro.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn fro_str_ends(s: String, suf: String) -> Bool
 extern fn fro_drop(s: String, n: Int) -> String
 extern fn fro_slot(person: String, number: String) -> Int

elp/src/morphology-gez.el

@@ -64,6 +64,7 @@
 
 // ── String helpers ─────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn gez_str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology-gez.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn gez_str_ends(s: String, suf: String) -> Bool
 extern fn gez_str_len(s: String) -> Int
 extern fn gez_str_drop_last(s: String, n: Int) -> String

elp/src/morphology-goh.el

@@ -48,6 +48,7 @@
 
 // ── String helpers ─────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn goh_str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology-goh.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn goh_str_ends(s: String, suf: String) -> Bool
 extern fn goh_drop(s: String, n: Int) -> String
 extern fn goh_slot(person: String, number: String) -> Int

elp/src/morphology-got.el

@@ -49,6 +49,7 @@
 
 // ── String helpers ─────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn got_str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology-got.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn got_str_ends(s: String, suf: String) -> Bool
 extern fn got_str_drop_last(s: String, n: Int) -> String
 extern fn got_slot(person: String, number: String) -> Int

elp/src/morphology-grc.el

@@ -31,6 +31,7 @@
 
 // ── String helpers ─────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn grc_str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology-grc.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn grc_str_ends(s: String, suf: String) -> Bool
 extern fn grc_str_drop_last(s: String, n: Int) -> String
 extern fn grc_str_last_char(s: String) -> String

elp/src/morphology-he.el

@@ -51,6 +51,7 @@
 
 // ── String helpers ─────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn he_str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology-he.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn he_str_ends(s: String, suf: String) -> Bool
 extern fn he_str_len(s: String) -> Int
 extern fn he_str_drop_last(s: String, n: Int) -> String

elp/src/morphology-hi.el

@@ -24,6 +24,7 @@
 
 // ── String helpers ────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn hi_str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology-hi.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn hi_str_ends(s: String, suf: String) -> Bool
 extern fn hi_str_drop_last(s: String, n: Int) -> String
 extern fn hi_str_last_char(s: String) -> String

elp/src/morphology-ja.el

@@ -23,6 +23,7 @@
 // Note: this is a heuristic classifier for romanized input.  For production use
 // with native kana/kanji forms, the dictionary form (辞書形) must be consulted.
 
+import "morphology.el"
 fn ja_verb_group(dict_form: String) -> String {
     // Irregular verbs (exact match on dictionary form)
     if str_eq(dict_form, "する")  { return "irregular" }

elp/src/morphology-ja.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn ja_verb_group(dict_form: String) -> String
 extern fn ja_ichidan_stem(dict_form: String) -> String
 extern fn ja_godan_stem_change(dict_form: String, row: String) -> String

elp/src/morphology-la.el

@@ -25,6 +25,7 @@
 
 // ── String helpers ─────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn la_str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology-la.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn la_str_ends(s: String, suf: String) -> Bool
 extern fn la_str_drop_last(s: String, n: Int) -> String
 extern fn la_str_last_char(s: String) -> String

elp/src/morphology-non.el

@@ -27,6 +27,7 @@
 
 // ── String helpers ─────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn non_str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology-non.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn non_str_ends(s: String, suf: String) -> Bool
 extern fn non_drop(s: String, n: Int) -> String
 extern fn non_last(s: String) -> String

elp/src/morphology-peo.el

@@ -31,6 +31,7 @@
 
 // ── String helpers ─────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn peo_drop(s: String, n: Int) -> String {
     let len: Int = str_len(s)
     if n >= len { return "" }

elp/src/morphology-peo.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn peo_drop(s: String, n: Int) -> String
 extern fn peo_ends(s: String, suf: String) -> Bool
 extern fn peo_slot(person: String, number: String) -> Int

elp/src/morphology-pi.el

@@ -30,6 +30,7 @@
 
 // ── String helpers ─────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn pi_str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology-pi.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn pi_str_ends(s: String, suf: String) -> Bool
 extern fn pi_drop(s: String, n: Int) -> String
 extern fn pi_last_char(s: String) -> String

elp/src/morphology-ru.el

@@ -35,6 +35,7 @@
 // The heuristic returns the most probable gender.  Caller should override
 // for known exceptions (путь, рубль are masc despite -ь).
 
+import "morphology.el"
 fn ru_gender(noun: String) -> String {
     let n: Int = str_len(noun)
     if n == 0 { return "m" }

elp/src/morphology-ru.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn ru_gender(noun: String) -> String
 extern fn ru_stem_type(noun: String, gender: String) -> String
 extern fn ru_noun_case(noun: String, gender: String, gram_case: String, number: String) -> String

elp/src/morphology-sa.el

@@ -42,6 +42,7 @@
 
 // ── String helpers ─────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn sa_str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology-sa.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn sa_str_ends(s: String, suf: String) -> Bool
 extern fn sa_str_drop_last(s: String, n: Int) -> String
 extern fn sa_slot(person: String, number: String) -> Int

elp/src/morphology-sga.el

@@ -31,6 +31,7 @@
 
 // ── String helpers ─────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn sga_drop(s: String, n: Int) -> String {
     let len: Int = str_len(s)
     if n >= len { return "" }

elp/src/morphology-sga.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn sga_drop(s: String, n: Int) -> String
 extern fn sga_first(s: String) -> String
 extern fn sga_rest(s: String) -> String

elp/src/morphology-sux.el

@@ -53,6 +53,7 @@
 
 // ── String helpers ─────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn sux_str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology-sux.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn sux_str_ends(s: String, suf: String) -> Bool
 extern fn sux_str_drop_last(s: String, n: Int) -> String
 extern fn sux_str_last_char(s: String) -> String

elp/src/morphology-sw.el

@@ -24,6 +24,7 @@
 
 // ── String helpers ────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn sw_str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology-sw.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn sw_str_ends(s: String, suf: String) -> Bool
 extern fn sw_str_drop_last(s: String, n: Int) -> String
 extern fn sw_str_first_char(s: String) -> String

elp/src/morphology-txb.el

@@ -30,6 +30,7 @@
 
 // ── String helpers ─────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn txb_drop(s: String, n: Int) -> String {
     let len: Int = str_len(s)
     if n >= len { return "" }

elp/src/morphology-txb.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn txb_drop(s: String, n: Int) -> String
 extern fn txb_ends(s: String, suf: String) -> Bool
 extern fn txb_slot(person: String, number: String) -> Int

elp/src/morphology-uga.el

@@ -48,6 +48,7 @@
 
 // ── String helpers ─────────────────────────────────────────────────────────────
 
+import "morphology.el"
 fn uga_str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology-uga.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn uga_str_ends(s: String, suf: String) -> Bool
 extern fn uga_str_len(s: String) -> Int
 extern fn uga_str_drop_last(s: String, n: Int) -> String

elp/src/morphology.el

@@ -33,6 +33,17 @@
 
 // ── String helpers ────────────────────────────────────────────────────────────
 
+import "language-profile.el"
+import "morphology-es.el"
+import "morphology-fr.el"
+import "morphology-de.el"
+import "morphology-ru.el"
+import "morphology-fi.el"
+import "morphology-ar.el"
+import "morphology-hi.el"
+import "morphology-sw.el"
+import "morphology-la.el"
+import "morphology-ja.el"
 fn str_ends(s: String, suf: String) -> Bool {
     return str_ends_with(s, suf)
 }

elp/src/morphology.elh

@@ -1,4 +1,4 @@
-// auto-generated by elc --emit-header - do not edit
+// auto-generated by elc --emit-header — do not edit
 extern fn str_ends(s: String, suf: String) -> Bool
 extern fn str_last_char(s: String) -> String
 extern fn str_last2(s: String) -> String
@@ -8,7 +8,7 @@ extern fn is_vowel(c: String) -> Bool
 extern fn morph_apply_suffix(base: String, suffix: String) -> String
 extern fn en_irregular_plural(word: String) -> String
 extern fn en_irregular_singular(word: String) -> String
-extern fn en_irregular_verb(base: String) -> Any
+extern fn en_irregular_verb(base: String) -> [String]
 extern fn en_verb_3sg(base: String) -> String
 extern fn en_should_double_final(base: String) -> Bool
 extern fn en_verb_past(base: String) -> String
@@ -16,10 +16,10 @@ extern fn en_verb_gerund(base: String) -> String
 extern fn en_pluralize_regular(singular: String) -> String
 extern fn en_verb_form(base: String, tense: String, person: String, number: String) -> String
 extern fn agree_determiner(det: String, noun: String) -> String
-extern fn morph_pluralize(noun: String, profile: Any) -> String
+extern fn morph_pluralize(noun: String, profile: [String]) -> String
 extern fn morph_map_canonical(verb: String, code: String) -> String
-extern fn morph_conjugate(verb: String, tense: String, person: String, number: String, profile: Any) -> String
-extern fn morph_inflect(word: String, features: String, profile: Any) -> String
+extern fn morph_conjugate(verb: String, tense: String, person: String, number: String, profile: [String]) -> String
+extern fn morph_inflect(word: String, features: String, profile: [String]) -> String
 extern fn pluralize(singular: String) -> String
 extern fn singularize(plural: String) -> String
 extern fn verb_form(base: String, tense: String, person: String, number: String) -> String

elp/src/vocabulary.elh

@@ -1,20 +1,20 @@
-// auto-generated by elc --emit-header - do not edit
-extern fn lex_word(entry: Any) -> String
-extern fn lex_pos(entry: Any) -> String
-extern fn lex_form(entry: Any, idx: Int) -> String
-extern fn lex_class(entry: Any) -> String
-extern fn make_entry(word: String, pos: String, f0: String, f1: String, f2: String, f3: String, f4: String, cls: String) -> Any
-extern fn make_entry2(word: String, pos: String, f0: String, f1: String, cls: String) -> Any
-extern fn make_entry3(word: String, pos: String, f0: String, f1: String, f2: String, cls: String) -> Any
-extern fn make_entry1(word: String, pos: String, f0: String, cls: String) -> Any
-extern fn build_vocab() -> Any
-extern fn get_vocab() -> Any
-extern fn vocab_lookup(word: String, lang_code: String) -> Any
-extern fn vocab_lookup_en(word: String) -> Any
+// auto-generated by elc --emit-header — do not edit
+extern fn lex_word(entry: [String]) -> String
+extern fn lex_pos(entry: [String]) -> String
+extern fn lex_form(entry: [String], idx: Int) -> String
+extern fn lex_class(entry: [String]) -> String
+extern fn make_entry(word: String, pos: String, f0: String, f1: String, f2: String, f3: String, f4: String, cls: String) -> [String]
+extern fn make_entry2(word: String, pos: String, f0: String, f1: String, cls: String) -> [String]
+extern fn make_entry3(word: String, pos: String, f0: String, f1: String, f2: String, cls: String) -> [String]
+extern fn make_entry1(word: String, pos: String, f0: String, cls: String) -> [String]
+extern fn build_vocab() -> [[String]]
+extern fn get_vocab() -> [[String]]
+extern fn vocab_lookup(word: String, lang_code: String) -> [String]
+extern fn vocab_lookup_en(word: String) -> [String]
 extern fn vocab_synonym(word: String, lang_register: String, lang_code: String) -> String
-extern fn vocab_by_pos(pos: String) -> Any
-extern fn vocab_by_class(cls: String) -> Any
-extern fn entry_found(entry: Any) -> Bool
-extern fn entry_word(entry: Any) -> String
-extern fn entry_pos(entry: Any) -> String
-extern fn entry_form(entry: Any, n: Int) -> String
+extern fn vocab_by_pos(pos: String) -> [[String]]
+extern fn vocab_by_class(cls: String) -> [[String]]
+extern fn entry_found(entry: [String]) -> Bool
+extern fn entry_word(entry: [String]) -> String
+extern fn entry_pos(entry: [String]) -> String
+extern fn entry_form(entry: [String], n: Int) -> String

lang/el-compiler/runtime/el_runtime.c

@@ -42,6 +42,7 @@
 #include <dirent.h>
 #include <errno.h>
 #include <pthread.h>
+#include <sys/resource.h>  /* getrusage — memory guard */
 #ifdef HAVE_CURL
 #include <curl/curl.h>
 #endif
@@ -1881,6 +1882,83 @@ el_val_t http_serve_v2(el_val_t port, el_val_t handler) {
     return 0;
 }
 
+/* ── http_serve_async — non-blocking HTTP server ─────────────────────────── */
+/* Runs the accept loop in a background pthread, returns immediately so the
+ * calling EL script can continue (e.g. to run an awareness loop).
+ *
+ * El signature: http_serve_async(port, handler) -> Void               */
+
+typedef struct { int sock; } HttpServeAsyncArg;
+
+static void* _http_serve_async_loop(void* raw) {
+    HttpServeAsyncArg* a = (HttpServeAsyncArg*)raw;
+    int sock = a->sock;
+    free(a);
+    while (1) {
+        struct sockaddr_in6 cli;
+        socklen_t clen = sizeof(cli);
+        int cfd = accept(sock, (struct sockaddr*)&cli, &clen);
+        if (cfd < 0) {
+            if (errno == EINTR) continue;
+            perror("accept"); break;
+        }
+        pthread_mutex_lock(&_http_conn_mu);
+        while (_http_conn_active >= HTTP_MAX_CONNS) {
+            pthread_cond_wait(&_http_conn_cv, &_http_conn_mu);
+        }
+        _http_conn_active++;
+        pthread_mutex_unlock(&_http_conn_mu);
+        HttpWorkerArg* arg = malloc(sizeof(HttpWorkerArg));
+        if (!arg) { close(cfd); continue; }
+        arg->fd = cfd;
+        pthread_t tid;
+        if (pthread_create(&tid, NULL, http_worker, arg) != 0) {
+            close(cfd); free(arg);
+            pthread_mutex_lock(&_http_conn_mu);
+            _http_conn_active--;
+            pthread_cond_signal(&_http_conn_cv);
+            pthread_mutex_unlock(&_http_conn_mu);
+            continue;
+        }
+        pthread_detach(tid);
+    }
+    close(sock);
+    return NULL;
+}
+
+void http_serve_async(el_val_t port, el_val_t handler) {
+    const char* hname = EL_CSTR(handler);
+    if (hname && looks_like_string(handler)) {
+        http_set_handler(handler);
+    }
+    int p = (int)port;
+    if (p <= 0 || p > 65535) { fprintf(stderr, "http_serve_async: invalid port %d\n", p); return; }
+    int sock = socket(AF_INET6, SOCK_STREAM, 0);
+    if (sock < 0) { perror("socket"); return; }
+    int yes = 1; int no = 0;
+    setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes));
+    setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, &no, sizeof(no));
+    struct sockaddr_in6 addr;
+    memset(&addr, 0, sizeof(addr));
+    addr.sin6_family = AF_INET6;
+    addr.sin6_addr = in6addr_any;
+    addr.sin6_port = htons((uint16_t)p);
+    if (bind(sock, (struct sockaddr*)&addr, sizeof(addr)) < 0) {
+        perror("bind"); close(sock); return;
+    }
+    if (listen(sock, 64) < 0) { perror("listen"); close(sock); return; }
+    fprintf(stderr, "[http] async listening on [::]:%d (dual-stack)\n", p);
+    HttpServeAsyncArg* a = malloc(sizeof(HttpServeAsyncArg));
+    if (!a) { close(sock); return; }
+    a->sock = sock;
+    pthread_t tid;
+    if (pthread_create(&tid, NULL, _http_serve_async_loop, a) != 0) {
+        perror("pthread_create"); free(a); close(sock); return;
+    }
+    pthread_detach(tid);
+    /* Returns immediately — caller can now run awareness_run() or any loop. */
+}
+
 /* Build the response envelope a 4-arg handler can return. We hand-write
  * the JSON so the discriminator key always lands first — the runtime's
  * http_parse_envelope() detects it via prefix match. headers_json must be
@@ -2241,6 +2319,43 @@ el_val_t url_decode(el_val_t sv) {
     return el_wrap_str(out);
 }
 
+/* ── html_raw ────────────────────────────────────────────────────────────────
+ * Identity passthrough for raw HTML template interpolation.
+ * El's {raw(expr)} compiles to html_raw(expr) — the value is output as-is
+ * without any escaping. The caller is responsible for safety.
+ */
+el_val_t html_raw(el_val_t s) {
+    return s;
+}
+
+/* ── html_escape ─────────────────────────────────────────────────────────────
+ * Escape < > " ' & for safe HTML text interpolation.
+ * El's {expr} in HTML templates compiles to html_escape(expr).
+ */
+el_val_t html_escape(el_val_t sv) {
+    const char* src = EL_CSTR(sv);
+    if (!src) return EL_STR("");
+    size_t len = strlen(src);
+    /* Worst case: every byte → 6 chars (&quot;) */
+    char* out = (char*)malloc(len * 6 + 1);
+    if (!out) return sv;
+    el_arena_track(out);
+    char* p = out;
+    for (size_t i = 0; i < len; i++) {
+        unsigned char c = (unsigned char)src[i];
+        switch (c) {
+            case '&':  memcpy(p, "&amp;",  5); p += 5; break;
+            case '<':  memcpy(p, "&lt;",   4); p += 4; break;
+            case '>':  memcpy(p, "&gt;",   4); p += 4; break;
+            case '"':  memcpy(p, "&quot;", 6); p += 6; break;
+            case '\'': memcpy(p, "&#39;",  5); p += 5; break;
+            default:   *p++ = (char)c;          break;
+        }
+    }
+    *p = '\0';
+    return el_wrap_str(out);
+}
+
 /* ── HTML allowlist sanitizer ────────────────────────────────────────────────
  * el_html_sanitize(input, allowlist_json)
  *
@@ -3135,23 +3250,49 @@ static void jb_puts(JsonBuf* b, const char* s) {
 
 static void jb_emit_escaped(JsonBuf* b, const char* s) {
     jb_putc(b, '"');
-    for (; *s; s++) {
-        unsigned char c = (unsigned char)*s;
+    const unsigned char* p = (const unsigned char*)s;
+    while (*p) {
+        unsigned char c = *p;
         switch (c) {
-            case '"':  jb_puts(b, "\\\""); break;
-            case '\\': jb_puts(b, "\\\\"); break;
-            case '\b': jb_puts(b, "\\b");  break;
-            case '\f': jb_puts(b, "\\f");  break;
-            case '\n': jb_puts(b, "\\n");  break;
-            case '\r': jb_puts(b, "\\r");  break;
-            case '\t': jb_puts(b, "\\t");  break;
+            case '"':  jb_puts(b, "\\\""); p++; break;
+            case '\\': jb_puts(b, "\\\\"); p++; break;
+            case '\b': jb_puts(b, "\\b");  p++; break;
+            case '\f': jb_puts(b, "\\f");  p++; break;
+            case '\n': jb_puts(b, "\\n");  p++; break;
+            case '\r': jb_puts(b, "\\r");  p++; break;
+            case '\t': jb_puts(b, "\\t");  p++; break;
             default:
                 if (c < 0x20) {
                     char tmp[8];
                     snprintf(tmp, sizeof(tmp), "\\u%04x", c);
                     jb_puts(b, tmp);
-                } else {
+                    p++;
+                } else if (c < 0x80) {
                     jb_putc(b, (char)c);
+                    p++;
+                } else {
+                    /* Multi-byte UTF-8: validate sequence, pass through if valid,
+                     * escape as \u00xx if the start byte is invalid/orphaned. */
+                    int seq_len = 0;
+                    if      ((c & 0xE0) == 0xC0) seq_len = 2;
+                    else if ((c & 0xF0) == 0xE0) seq_len = 3;
+                    else if ((c & 0xF8) == 0xF0) seq_len = 4;
+                    if (seq_len >= 2) {
+                        int valid = 1;
+                        for (int i = 1; i < seq_len; i++) {
+                            if ((p[i] & 0xC0) != 0x80) { valid = 0; break; }
+                        }
+                        if (valid) {
+                            for (int i = 0; i < seq_len; i++) jb_putc(b, (char)p[i]);
+                            p += seq_len;
+                            break;
+                        }
+                    }
+                    /* Invalid start byte or truncated sequence — escape it */
+                    char tmp[8];
+                    snprintf(tmp, sizeof(tmp), "\\u%04x", c);
+                    jb_puts(b, tmp);
+                    p++;
                 }
                 break;
         }
@@ -5674,6 +5815,50 @@ el_val_t getpid_now(void) {
     return (el_val_t)getpid();
 }
 
+/* el_mem_check — self-terminating memory guard for long-running compiler runs.
+ *
+ * Call this periodically (e.g. after each function compiled) to detect runaway
+ * memory growth before the OS OOM-killer fires. Reads the limit from the env
+ * var ELC_MAX_MEM_MB (default 512 MB). If resident set size exceeds the limit,
+ * prints a diagnostic to stderr and exits with code 1 so the caller (elb or a
+ * CI script) can handle the failure gracefully instead of having the whole
+ * machine go down.
+ *
+ * Platform notes:
+ *   macOS  — ru_maxrss is in bytes.
+ *   Linux  — ru_maxrss is in kilobytes.
+ * We normalise to MB before comparing.
+ *
+ * Returns 0 always (the only non-return path is the exit() branch).
+ */
+el_val_t el_mem_check(void) {
+    /* Read limit from env; default 512 MB. */
+    long limit_mb = 512;
+    const char *env_val = getenv("ELC_MAX_MEM_MB");
+    if (env_val && *env_val) {
+        long v = atol(env_val);
+        if (v > 0) limit_mb = v;
+    }
+
+    struct rusage ru;
+    if (getrusage(RUSAGE_SELF, &ru) != 0) return 0; /* can't read — skip check */
+
+    long rss_mb;
+#if defined(__APPLE__) || defined(__MACH__)
+    /* macOS: ru_maxrss is bytes */
+    rss_mb = (long)(ru.ru_maxrss / (1024L * 1024L));
+#else
+    /* Linux: ru_maxrss is kilobytes */
+    rss_mb = (long)(ru.ru_maxrss / 1024L);
+#endif
+
+    if (rss_mb >= limit_mb) {
+        fprintf(stderr, "elc: memory limit exceeded (%ldMB), aborting\n", limit_mb);
+        exit(1);
+    }
+    return 0;
+}
+
 /* ── args() — command-line argument access ──────────────────────────────────
  * Compiled El programs call args() to get a list of CLI arguments.
  * Call el_runtime_init_args(argc, argv) at the start of C main() to populate.
@@ -7807,6 +7992,257 @@ el_val_t engram_query_range(el_val_t start_ms_v, el_val_t end_ms_v) {
     return el_wrap_str(b.buf);
 }
 
+/* engram_load_merge — like engram_load but WITHOUT resetting the store.
+ * Reads a JSON snapshot from `path` and adds any nodes/edges not already
+ * present in the in-memory graph. Dedup is by node id (for nodes) and by
+ * (from_id, to_id, relation) tuple (for edges).
+ *
+ * Returns (as an EL int) the count of new nodes added. Embeddings are
+ * intentionally skipped on merged nodes to avoid Ollama delays at runtime;
+ * auto_link_semantic will handle them when nodes are next activated.
+ *
+ * Does not merge layers — the in-process layer registry is authoritative. */
+el_val_t engram_load_merge(el_val_t path) {
+    const char* p = EL_CSTR(path);
+    if (!p || !*p) return 0;
+    FILE* f = fopen(p, "rb");
+    if (!f) return 0;
+    fseek(f, 0, SEEK_END);
+    long sz = ftell(f);
+    rewind(f);
+    if (sz <= 0) { fclose(f); return 0; }
+    char* data = malloc((size_t)sz + 1);
+    if (!data) { fclose(f); return 0; }
+    size_t got = fread(data, 1, (size_t)sz, f);
+    fclose(f);
+    data[got] = '\0';
+
+    EngramStore* g = engram_get();
+    int64_t added_nodes = 0;
+
+    /* Walk nodes array — skip any node whose id already exists */
+    const char* nodes_p = json_find_key(data, "nodes");
+    if (nodes_p) {
+        nodes_p = eg_skip_ws(nodes_p);
+        if (*nodes_p == '[') {
+            nodes_p++;
+            nodes_p = eg_skip_ws(nodes_p);
+            while (*nodes_p && *nodes_p != ']') {
+                if (*nodes_p != '{') { nodes_p++; continue; }
+                const char* end = json_skip_value(nodes_p);
+                size_t n = (size_t)(end - nodes_p);
+                char* obj = malloc(n + 1);
+                memcpy(obj, nodes_p, n); obj[n] = '\0';
+                char* nid = eg_get_str_field(obj, "id");
+                int already = (nid && *nid && engram_find_node(nid) != NULL);
+                free(nid);
+                if (!already) {
+                    engram_grow_nodes();
+                    EngramNode* nn = &g->nodes[g->node_count];
+                    memset(nn, 0, sizeof(*nn));
+                    nn->id        = eg_get_str_field(obj, "id");
+                    nn->content   = eg_get_str_field(obj, "content");
+                    nn->node_type = eg_get_str_field(obj, "node_type");
+                    nn->label     = eg_get_str_field(obj, "label");
+                    nn->tier      = eg_get_str_field(obj, "tier");
+                    nn->tags      = eg_get_str_field(obj, "tags");
+                    nn->metadata  = eg_get_str_field(obj, "metadata");
+                    if (!nn->metadata || !*nn->metadata) { free(nn->metadata); nn->metadata = strdup("{}"); }
+                    nn->salience              = eg_get_num_field(obj, "salience");
+                    nn->importance            = eg_get_num_field(obj, "importance");
+                    nn->confidence            = eg_get_num_field(obj, "confidence");
+                    nn->temporal_decay_rate   = eg_get_num_field(obj, "temporal_decay_rate");
+                    nn->activation_count      = eg_get_int_field(obj, "activation_count");
+                    nn->last_activated        = eg_get_int_field(obj, "last_activated");
+                    nn->created_at            = eg_get_int_field(obj, "created_at");
+                    nn->updated_at            = eg_get_int_field(obj, "updated_at");
+                    nn->background_activation = eg_get_num_field(obj, "background_activation");
+                    nn->working_memory_weight = eg_get_num_field(obj, "working_memory_weight");
+                    if (!isfinite(nn->working_memory_weight) || nn->working_memory_weight < 0.0 || nn->working_memory_weight > 1.0)
+                        nn->working_memory_weight = 0.0; /* clamp corrupt snapshot values */
+                    nn->suppression_count     = (int32_t)eg_get_int_field(obj, "suppression_count");
+                    if (json_find_key(obj, "layer_id")) {
+                        nn->layer_id = (uint32_t)eg_get_int_field(obj, "layer_id");
+                    } else {
+                        nn->layer_id = ENGRAM_LAYER_DEFAULT;
+                    }
+                    g->node_count++;
+                    added_nodes++;
+                }
+                free(obj);
+                nodes_p = end;
+                nodes_p = eg_skip_ws(nodes_p);
+                if (*nodes_p == ',') { nodes_p++; nodes_p = eg_skip_ws(nodes_p); }
+            }
+        }
+    }
+
+    /* Walk edges array — skip if (from_id, to_id, relation) already present */
+    const char* edges_p = json_find_key(data, "edges");
+    if (edges_p) {
+        edges_p = eg_skip_ws(edges_p);
+        if (*edges_p == '[') {
+            edges_p++;
+            edges_p = eg_skip_ws(edges_p);
+            while (*edges_p && *edges_p != ']') {
+                if (*edges_p != '{') { edges_p++; continue; }
+                const char* end = json_skip_value(edges_p);
+                size_t n = (size_t)(end - edges_p);
+                char* obj = malloc(n + 1);
+                memcpy(obj, edges_p, n); obj[n] = '\0';
+                char* efrom = eg_get_str_field(obj, "from_id");
+                char* eto   = eg_get_str_field(obj, "to_id");
+                char* erel  = eg_get_str_field(obj, "relation");
+                /* Check for duplicate by scanning existing edges */
+                int dup = 0;
+                if (efrom && eto && erel) {
+                    for (int64_t ei = 0; ei < g->edge_count; ei++) {
+                        EngramEdge* ex = &g->edges[ei];
+                        if (ex->from_id && ex->to_id && ex->relation &&
+                            strcmp(ex->from_id, efrom) == 0 &&
+                            strcmp(ex->to_id,   eto)   == 0 &&
+                            strcmp(ex->relation, erel)  == 0) {
+                            dup = 1; break;
+                        }
+                    }
+                }
+                if (!dup) {
+                    engram_grow_edges();
+                    EngramEdge* ee = &g->edges[g->edge_count];
+                    memset(ee, 0, sizeof(*ee));
+                    ee->id       = eg_get_str_field(obj, "id");
+                    ee->from_id  = efrom ? efrom : strdup("");
+                    ee->to_id    = eto   ? eto   : strdup("");
+                    ee->relation = erel  ? erel  : strdup("");
+                    ee->metadata = eg_get_str_field(obj, "metadata");
+                    if (!ee->metadata || !*ee->metadata) { free(ee->metadata); ee->metadata = strdup("{}"); }
+                    ee->weight     = eg_get_num_field(obj, "weight");
+                    ee->confidence = eg_get_num_field(obj, "confidence");
+                    ee->created_at = eg_get_int_field(obj, "created_at");
+                    ee->updated_at = eg_get_int_field(obj, "updated_at");
+                    ee->last_fired = eg_get_int_field(obj, "last_fired");
+                    ee->inhibitory = (int)eg_get_int_field(obj, "inhibitory");
+                    if (json_find_key(obj, "layer_id")) {
+                        ee->layer_id = (uint32_t)eg_get_int_field(obj, "layer_id");
+                    } else {
+                        ee->layer_id = ENGRAM_LAYER_DEFAULT;
+                    }
+                    g->edge_count++;
+                    /* NOTE: efrom/eto/erel ownership transferred to ee above */
+                    efrom = NULL; eto = NULL; erel = NULL;
+                } else {
+                    free(efrom); free(eto); free(erel);
+                }
+                free(obj);
+                edges_p = end;
+                edges_p = eg_skip_ws(edges_p);
+                if (*edges_p == ',') { edges_p++; edges_p = eg_skip_ws(edges_p); }
+            }
+        }
+    }
+
+    free(data);
+    return (el_val_t)added_nodes;
+}
+
+el_val_t engram_wm_count(void) {
+    EngramStore* g = engram_get();
+    int64_t count = 0;
+    for (int64_t i = 0; i < g->node_count; i++) {
+        if (g->nodes[i].working_memory_weight > 0.0) count++;
+    }
+    return (el_val_t)count;
+}
+
+/* Average working_memory_weight across all promoted nodes (wm > 0).
+ * Returns the float bit-pattern via el_from_float so EL can use it with
+ * float_to_str / float_gt. Returns 0.0 when no nodes are promoted.
+ * Useful in heartbeat ISEs to distinguish "many weak activations" (sparse
+ * graph, low avg) from "few strong activations" (dense subgraph, high avg).
+ * Added 2026-06-04 self-review for graph health observability. */
+el_val_t engram_wm_avg_weight(void) {
+    EngramStore* g = engram_get();
+    double sum = 0.0;
+    int64_t count = 0;
+    for (int64_t i = 0; i < g->node_count; i++) {
+        double w = g->nodes[i].working_memory_weight;
+        /* Defensive guard: skip any corrupt/out-of-range values so a single
+         * bad snapshot node doesn't produce a garbage average (e.g. 1.77e+234). */
+        if (w > 0.0 && w <= 1.0 && isfinite(w)) { sum += w; count++; }
+    }
+    double avg = (count > 0) ? (sum / (double)count) : 0.0;
+    return el_from_float(avg);
+}
+
+/* engram_wm_top_json — return top N working-memory nodes (by wm weight) as a
+ * compact JSON array for ISE heartbeat reporting.
+ *
+ * Each element: {"label":"...","node_type":"...","tier":"...","wm":0.42}
+ *
+ * Purpose: the heartbeat ISE reports wm_active (count) and wm_avg_weight but
+ * gives zero visibility into WM *composition* — which types/tiers are active.
+ * After long uptime every WM slot is in steady-state decay+re-promotion so
+ * wm_promotion ISEs never fire (they only fire on 0→>0.1 transitions).
+ * This function fills the observability gap by snapshotting the current top-N
+ * WM nodes on every heartbeat. Inserted 2026-06-05 self-review. */
+el_val_t engram_wm_top_json(el_val_t n_v) {
+    int64_t top_n = (int64_t)n_v;
+    if (top_n <= 0) top_n = 10;
+    if (top_n > 50) top_n = 50;
+    EngramStore* g = engram_get();
+
+    /* Collect indices of promoted nodes, excluding monitoring noise.
+     * InternalStateEvent nodes are system-observation artifacts — they reflect
+     * what the daemon is doing, not what it knows. Including them in wm_top
+     * buries real knowledge (Memory, Knowledge, Belief nodes) under a wall of
+     * heartbeat/curiosity ISEs, making the heartbeat ISE useless for diagnosing
+     * WM composition. Filter them out here so wm_top always shows substantive
+     * content. (2026-06-07 self-review) */
+    int64_t* idx = malloc((size_t)(g->node_count + 1) * sizeof(int64_t));
+    if (!idx) return el_wrap_str(el_strdup("[]"));
+    int64_t mc = 0;
+    for (int64_t i = 0; i < g->node_count; i++) {
+        if (g->nodes[i].working_memory_weight > 0.0) {
+            const char* nt = g->nodes[i].node_type;
+            if (nt && strcmp(nt, "InternalStateEvent") == 0) continue;
+            idx[mc++] = i;
+        }
+    }
+
+    /* Insertion-sort descending by wm weight (mc is typically small). */
+    for (int64_t i = 1; i < mc; i++) {
+        int64_t key = idx[i];
+        double  kw  = g->nodes[key].working_memory_weight;
+        int64_t j = i;
+        while (j > 0 && g->nodes[idx[j-1]].working_memory_weight < kw) {
+            idx[j] = idx[j-1]; j--;
+        }
+        idx[j] = key;
+    }
+
+    int64_t emit = mc < top_n ? mc : top_n;
+    JsonBuf b; jb_init(&b);
+    jb_putc(&b, '[');
+    for (int64_t k = 0; k < emit; k++) {
+        EngramNode* n = &g->nodes[idx[k]];
+        if (k > 0) jb_putc(&b, ',');
+        jb_putc(&b, '{');
+        jb_puts(&b, "\"label\":");
+        jb_emit_escaped(&b, n->label     ? n->label     : "");
+        jb_puts(&b, ",\"node_type\":");
+        jb_emit_escaped(&b, n->node_type ? n->node_type : "");
+        jb_puts(&b, ",\"tier\":");
+        jb_emit_escaped(&b, n->tier      ? n->tier      : "");
+        char tmp[48];
+        snprintf(tmp, sizeof(tmp), ",\"wm\":%.3f", n->working_memory_weight);
+        jb_puts(&b, tmp);
+        jb_putc(&b, '}');
+    }
+    free(idx);
+    jb_putc(&b, ']');
+    return el_wrap_str(b.buf);
+}
+
 #ifdef HAVE_CURL
 /* ── DHARMA network ─────────────────────────────────────────────────────────
  * Real implementation. Peers are addressed by `dharma_id` — either bare
@@ -8447,7 +8883,7 @@ static el_val_t llm_provider_request(const char* url, const char* key,
     }
 }
 
-static el_val_t llm_chain_call(const char* system_str, const char* user_str) {
+static el_val_t llm_chain_call(const char* model_pref, const char* system_str, const char* user_str) {
     char url_key[64], key_key[64], fmt_key[64], model_key[64];
     for (int i = 0; i < LLM_MAX_PROVIDERS; i++) {
         snprintf(url_key,   sizeof(url_key),   "NEURON_LLM_%d_URL",    i);
@@ -8460,6 +8896,7 @@ static el_val_t llm_chain_call(const char* system_str, const char* user_str) {
         const char* fmt_s = getenv(fmt_key);
         int fmt = (fmt_s && strcmp(fmt_s, "anthropic") == 0) ? 1 : 0;
         const char* model = getenv(model_key);
+        if (!model || !*model) model = model_pref; /* fall back to the caller-requested model */
         fprintf(stderr, "[llm] trying provider %d (%s)\n", i, url);
         el_val_t result = llm_provider_request(url, key, fmt, model, system_str, user_str);
         const char* t = EL_CSTR(result);
@@ -8470,7 +8907,7 @@ static el_val_t llm_chain_call(const char* system_str, const char* user_str) {
     const char* api_key = getenv("ANTHROPIC_API_KEY");
     if (!api_key || !*api_key) return http_error_json("no LLM providers configured");
     fprintf(stderr, "[llm] using legacy ANTHROPIC_API_KEY fallback\n");
-    return llm_provider_request(LLM_API_URL, api_key, 1, NULL, system_str, user_str);
+    return llm_provider_request(LLM_API_URL, api_key, 1, model_pref, system_str, user_str);
 }
 
 /* Legacy llm_request — kept for backward compat with agentic loop internals */
@@ -8534,14 +8971,16 @@ static el_val_t llm_extract_text(el_val_t resp_val) {
 }
 
 el_val_t llm_call(el_val_t model, el_val_t prompt) {
+    const char* m = EL_CSTR(model);
     const char* u = EL_CSTR(prompt); if (!u) u = "";
-    return llm_chain_call(NULL, u);
+    return llm_chain_call(m, NULL, u);
 }
 
 el_val_t llm_call_system(el_val_t model, el_val_t system_prompt, el_val_t user_prompt) {
+    const char* m = EL_CSTR(model);
     const char* s = EL_CSTR(system_prompt); if (!s) s = "";
     const char* u = EL_CSTR(user_prompt);   if (!u) u = "";
-    return llm_chain_call(s, u);
+    return llm_chain_call(m, s, u);
 }
 
 /* ── Tool registry for llm_call_agentic ─────────────────────────────────── */

lang/el-compiler/runtime/el_runtime.h

@@ -176,6 +176,7 @@ el_val_t  http_set_handler(el_val_t name);
  * existing handlers (e.g. products/web/server.el): it dispatches with
  * (method, path, body), hardcodes 200 OK, and auto-detects content type. */
 el_val_t  http_serve_v2(el_val_t port, el_val_t handler);
+void      http_serve_async(el_val_t port, el_val_t handler);
 el_val_t  http_set_handler_v2(el_val_t name);
 
 /* Build an HTTP response envelope. `headers_json` should be a JSON object
@@ -227,6 +228,8 @@ el_val_t  url_decode(el_val_t s);   /* '+' → space, %XX → byte  */
  *     {"p":[],"a":["href","title"],"strong":[],...}
  * where each value is the array of attribute names allowed for that tag. */
 el_val_t  el_html_sanitize(el_val_t input_html, el_val_t allowlist_json);
+el_val_t  html_raw(el_val_t s);
+el_val_t  html_escape(el_val_t s);
 
 /* ── Filesystem ──────────────────────────────────────────────────────────── */
 
@@ -531,6 +534,12 @@ el_val_t  parse_int(el_val_t s, el_val_t default_val);
 el_val_t  exit_program(el_val_t code);
 el_val_t  getpid_now(void);
 
+/* Self-terminating memory guard. Reads ELC_MAX_MEM_MB (default 512) and
+ * exits with code 1 if resident memory exceeds the limit. Call periodically
+ * during long compilation loops (e.g. after each function is compiled).
+ * Returns 0 when memory is within bounds.                                   */
+el_val_t  el_mem_check(void);
+
 /* ── CGI identity ─────────────────────────────────────────────────────────────
  * Called at the start of main() in CGI programs (those with a `cgi {}` block).
  * Records the program's DHARMA identity before any other code executes.      */
@@ -630,6 +639,12 @@ el_val_t  engram_list_layers_json(void);
  * no nodes promoted to working memory. */
 el_val_t  engram_compile_layered_json(el_val_t intent, el_val_t depth);
 
+/* ── Working memory ──────────────────────────────────────────────────────────*/
+el_val_t  engram_wm_count(void);
+el_val_t  engram_wm_avg_weight(void);
+el_val_t  engram_wm_top_json(el_val_t n);
+el_val_t  engram_load_merge(el_val_t path);
+
 /* ── LLM (Anthropic API client) ─────────────────────────────────────────────
  * All functions call https://api.anthropic.com/v1/messages with the API key
  * from env ANTHROPIC_API_KEY. Default model when empty: claude-sonnet-4-5. */

lang/el-compiler/src/codegen.el

@@ -324,6 +324,10 @@ fn cg_html_parts(children: [Map<String, Any>], acc_var: String) -> String {
             let each_c: String = cg_html_each(child, acc_var)
             let parts = native_list_append(parts, each_c)
         }
+        if str_eq(html_kind, "HtmlIf") {
+            let if_c: String = cg_html_if(child, acc_var)
+            let parts = native_list_append(parts, if_c)
+        }
         let i = i + 1
     }
     str_join(parts, "")
@@ -413,6 +417,17 @@ fn cg_html_each(node: Map<String, Any>, acc_var: String) -> String {
     "{ el_val_t " + list_var + " = (" + list_c + "); el_val_t " + len_var + " = el_list_len(" + list_var + "); for (el_val_t " + idx_var + " = 0; " + idx_var + " < " + len_var + "; " + idx_var + "++) { el_val_t " + item_name + " = el_list_get(" + list_var + ", " + idx_var + "); " + inner_c + "} } "
 }
 
+// Generate code for {#if cond} ... {/if} (with optional {#else}).
+fn cg_html_if(node: Map<String, Any>, acc_var: String) -> String {
+    let cond_expr = node["cond"]
+    let then_children: [Map<String, Any>] = node["then"]
+    let else_children: [Map<String, Any>] = node["else"]
+    let cond_c: String = cg_expr(cond_expr)
+    let then_c: String = cg_html_parts(then_children, acc_var)
+    let else_c: String = cg_html_parts(else_children, acc_var)
+    "if (" + cond_c + ") { " + then_c + " } else { " + else_c + " } "
+}
+
 // Top-level HTML template codegen — returns a C statement-expression string.
 fn cg_html_template(expr: Map<String, Any>) -> String {
     let root = expr["root"]
@@ -3715,6 +3730,7 @@ fn codegen_streaming(tokens: [Any], sigs: [Map<String, Any>], source: String) ->
                             cg_fn(stmt)
                             el_release(stmt)
                             el_arena_pop(fn_arena_mark)
+                            el_mem_check()
                         }
                     } else {
                         if is_top_level_decl(stmt) {

lang/el-compiler/src/compiler.el

@@ -287,6 +287,9 @@ fn type_node_to_el(t: Map<String, Any>) -> String {
 
 // emit_header — write a .elh file from parsed statements.
 // Scans for FnDef nodes and emits 'extern fn' declarations.
+// NOTE: This function requires the full AST. Prefer emit_header_from_sigs
+// for the --emit-header path — it works from a token-level scan without
+// building expression ASTs, avoiding OOM on large files.
 fn emit_header(stmts: [Map<String, Any>], hdr_path: String) -> Void {
     let n: Int = native_list_len(stmts)
     let i = 0
@@ -325,6 +328,32 @@ fn emit_header(stmts: [Map<String, Any>], hdr_path: String) -> Void {
     let ok: Bool = fs_write(hdr_path, content)
 }
 
+// emit_header_from_sigs — write a .elh file from pre-scanned El signatures.
+// Uses the output of scan_fn_sigs_el() — no full AST required.
+// Peak memory is O(tokens) rather than O(whole-program AST), which prevents
+// OOM on large files with HTML template bodies or deep BinOp chains.
+fn emit_header_from_sigs(sigs: [Map<String, Any>], hdr_path: String) -> Void {
+    let n: Int = native_list_len(sigs)
+    let i: Int = 0
+    let parts: [String] = native_list_empty()
+    let parts = native_list_append(parts, "// auto-generated by elc --emit-header — do not edit\n")
+    while i < n {
+        let sig = native_list_get(sigs, i)
+        let kind: String = sig["kind"]
+        if str_eq(kind, "fn") {
+            let name: String = sig["name"]
+            let params_el: String = sig["params_el"]
+            let ret_el: String = sig["ret_el"]
+            if str_eq(ret_el, "") { let ret_el = "Any" }
+            let line: String = "extern fn " + name + "(" + params_el + ") -> " + ret_el
+            let parts = native_list_append(parts, line + "\n")
+        }
+        let i = i + 1
+    }
+    let content: String = str_join(parts, "")
+    let ok: Bool = fs_write(hdr_path, content)
+}
+
 // ── Import resolution ────────────────────────────────────────────────────────
 //
 // elc supports two forms of import:
@@ -536,16 +565,20 @@ fn main() -> Void {
 
     let src_path: String = native_list_get(positional, 0)
 
-    // When --emit-header is requested, parse the source file directly
-    // (without inlining imports) and write out a .elh file alongside the .c.
+    // When --emit-header is requested, lex the source file and do a
+    // token-level signature scan (no full AST) to write a .elh file.
+    // This avoids OOM on large files with HTML template bodies or deep
+    // BinOp chains (e.g. checkout.el) — parse() builds O(whole-program AST)
+    // while scan_fn_sigs_el keeps peak memory at O(tokens).
     if do_emit_header {
+        el_mem_check()
         let raw_source: String = fs_read(src_path)
         let hdr_tokens: [Any] = lex(raw_source)
-        let hdr_stmts: [Map<String, Any>] = parse(hdr_tokens)
+        let hdr_sigs: [Map<String, Any>] = scan_fn_sigs_el(hdr_tokens)
         el_release(hdr_tokens)
         let hdr_path: String = str_slice(src_path, 0, str_len(src_path) - 3) + ".elh"
-        emit_header(hdr_stmts, hdr_path)
-        el_release(hdr_stmts)
+        emit_header_from_sigs(hdr_sigs, hdr_path)
+        el_release(hdr_sigs)
     }
 
     let source: String = resolve_imports(src_path)

lang/el-compiler/src/parser.el

@@ -293,6 +293,48 @@ fn is_void_element(name: String) -> Bool {
     false
 }
 
+// Collect all tokens as raw text until </tag_name> is encountered.
+// Used for <style> and <script> elements to avoid parsing CSS/JS as El.
+// Returns { "text": "...", "pos": p_after_closing_tag }
+fn parse_raw_text_content(tokens: [Any], pos: Int, tag_name: String) -> Map<String, Any> {
+    let parts: [String] = native_list_empty()
+    let p = pos
+    let running = true
+    while running {
+        let k = tok_kind(tokens, p)
+        if str_eq(k, "Eof") {
+            let running = false
+        } else {
+            if str_eq(k, "Lt") {
+                let k2 = tok_kind(tokens, p + 1)
+                if str_eq(k2, "Slash") {
+                    // Check if this is </tag_name>
+                    let close_name = tok_value(tokens, p + 2)
+                    if str_eq(close_name, tag_name) {
+                        // consume </tag_name>
+                        let p = p + 3
+                        let p = expect(tokens, p, "Gt")
+                        let running = false
+                    } else {
+                        let v = tok_value(tokens, p)
+                        let parts = native_list_append(parts, v)
+                        let p = p + 1
+                    }
+                } else {
+                    let v = tok_value(tokens, p)
+                    let parts = native_list_append(parts, v)
+                    let p = p + 1
+                }
+            } else {
+                let v = tok_value(tokens, p)
+                let parts = native_list_append(parts, v)
+                let p = p + 1
+            }
+        }
+    }
+    { "text": str_join(parts, ""), "pos": p }
+}
+
 // Collect tokens as text content until we hit Lt, LBrace, Eof, or a
 // closing-tag marker (Lt Slash). Returns { "text": "...", "pos": p }
 fn parse_html_text_tokens(tokens: [Any], pos: Int) -> Map<String, Any> {
@@ -320,7 +362,7 @@ fn parse_html_text_tokens(tokens: [Any], pos: Int) -> Map<String, Any> {
             }
         }
     }
-    { "text": str_join(parts, " "), "pos": p }
+    { "text": str_join(parts, ""), "pos": p }
 }
 
 // Parse an attribute list: (attrname | attrname="val" | attrname={expr})*
@@ -435,77 +477,125 @@ fn parse_html_children(tokens: [Any], pos: Int, parent_tag: String) -> Map<Strin
                 }
             } else {
                 if str_eq(k, "LBrace") {
-                    // Interpolation: {expr} or {#each ...} or {/each}
+                    // Interpolation: {expr}, {#each ...}, {#if ...}, {#else}, {/each}, {/if}
+                    // Note: '#' (ASCII 35) is skipped by the lexer, so {#each} lexes as
+                    // LBrace Ident:"each" ... and {#if} lexes as LBrace If ... and
+                    // {#else} lexes as LBrace Else RBrace.
                     let k2 = tok_kind(tokens, p + 1)
-                    if str_eq(k2, "Hash") {
-                        // {#each list as item}
-                        let k3_v = tok_value(tokens, p + 2)
-                        if str_eq(k3_v, "each") {
-                            let p = p + 3
-                            // parse list expr up to "as" keyword
+                    if str_eq(k2, "Slash") {
+                        // {/each} or {/if} — end of block, stop
+                        // skip { /
+                        let p = p + 2
+                        // skip the close-tag name token (each, if, etc.)
+                        let p = p + 1
+                        // skip }
+                        let p = expect(tokens, p, "RBrace")
+                        let running = false
+                    } else {
+                        if str_eq(k2, "If") {
+                            // {#if condition} ... {/if}
+                            // Skip { if (2 tokens; '#' was silently skipped by lexer)
+                            let p = p + 2
+                            // Parse condition expression (no block expr)
                             let prev_no_block: String = state_get("__no_block_expr")
                             state_set("__no_block_expr", "1")
-                            let r_list = parse_expr(tokens, p)
+                            let r_cond = parse_expr(tokens, p)
                             state_set("__no_block_expr", prev_no_block)
-                            let list_expr = r_list["node"]
-                            let p = r_list["pos"]
-                            // r_list result map fully consumed — release to free peak heap.
-                            el_release(r_list)
-                            // expect "as"
-                            let p = expect(tokens, p, "As")
-                            // item variable name
-                            let item_name = tok_value(tokens, p)
-                            let p = p + 1
+                            let cond_expr = r_cond["node"]
+                            let p = r_cond["pos"]
+                            el_release(r_cond)
                             // consume closing }
                             let p = expect(tokens, p, "RBrace")
-                            // parse body until {/each}
-                            let r_body = parse_html_each_body(tokens, p)
-                            let body_children = r_body["children"]
-                            let p = r_body["pos"]
-                            // r_body result map fully consumed — release to free peak heap.
-                            el_release(r_body)
-                            let each_node: Map<String, Any> = { "html": "Each", "list": list_expr, "item": item_name, "body": body_children }
-                            let children = native_list_append(children, each_node)
-                        } else {
-                            let p = p + 1
-                        }
-                    } else {
-                        if str_eq(k2, "Slash") {
-                            // {/each} — end of each block, stop
-                            // skip {/each}
-                            let p = p + 2
-                            // skip "each"
-                            let p = p + 1
-                            // skip }
-                            let p = expect(tokens, p, "RBrace")
-                            let running = false
-                        } else {
-                            // regular {expr}
-                            let r = parse_expr(tokens, p + 1)
-                            let interp_val = r["node"]
-                            let p = r["pos"]
-                            // r result map fully consumed — release to free peak heap.
-                            el_release(r)
-                            let p = expect(tokens, p, "RBrace")
-                            // Check if the expr is a call to raw()
-                            let is_raw_call = false
-                            let interp_kind: String = interp_val["expr"]
-                            if str_eq(interp_kind, "Call") {
-                                let fn_node = interp_val["func"]
-                                let fn_kind: String = fn_node["expr"]
-                                if str_eq(fn_kind, "Ident") {
-                                    let fn_name_v: String = fn_node["name"]
-                                    if str_eq(fn_name_v, "raw") {
-                                        let is_raw_call = true
-                                    }
+                            // parse then-children until {#else} or {/if}
+                            let r_then = parse_html_children(tokens, p, "__if_then__")
+                            let then_children = r_then["children"]
+                            let p = r_then["pos"]
+                            el_release(r_then)
+                            // check for {#else} — lexed as LBrace Else RBrace
+                            let else_children: [Map<String, Any>] = native_list_empty()
+                            let ck = tok_kind(tokens, p)
+                            if str_eq(ck, "LBrace") {
+                                let ck2 = tok_kind(tokens, p + 1)
+                                if str_eq(ck2, "Else") {
+                                    // consume { else }
+                                    let p = p + 2
+                                    let p = expect(tokens, p, "RBrace")
+                                    // parse else-children until {/if}
+                                    let r_else = parse_html_children(tokens, p, "__if_else__")
+                                    let else_children = r_else["children"]
+                                    let p = r_else["pos"]
+                                    el_release(r_else)
                                 }
                             }
-                            if is_raw_call {
-                                let raw_args = interp_val["args"]
-                                let raw_inner = native_list_get(raw_args, 0)
-                                let children = native_list_append(children, { "html": "Raw", "value": raw_inner })
+                            let if_node: Map<String, Any> = { "html": "HtmlIf", "cond": cond_expr, "then": then_children, "else": else_children }
+                            let children = native_list_append(children, if_node)
+                        } else {
+                            if str_eq(k2, "Else") {
+                                // {#else} sentinel — lexed as LBrace Else RBrace
+                                // Do NOT consume — leave position for caller ({#if} handler checks for it)
+                                let running = false
                             } else {
-                                let children = native_list_append(children, { "html": "Interp", "value": interp_val })
+                                // Check for {#each list as item} — lexed as LBrace Ident:"each" ...
+                                let k2_v = tok_value(tokens, p + 1)
+                                if str_eq(k2_v, "each") {
+                                    let p = p + 2
+                                    // parse list expr up to "as" keyword
+                                    let prev_no_block: String = state_get("__no_block_expr")
+                                    state_set("__no_block_expr", "1")
+                                    let r_list = parse_expr(tokens, p)
+                                    state_set("__no_block_expr", prev_no_block)
+                                    let list_expr = r_list["node"]
+                                    let p = r_list["pos"]
+                                    // r_list result map fully consumed — release to free peak heap.
+                                    el_release(r_list)
+                                    // expect "as"
+                                    let p = expect(tokens, p, "As")
+                                    // item variable name
+                                    let item_name = tok_value(tokens, p)
+                                    let p = p + 1
+                                    // consume closing }
+                                    let p = expect(tokens, p, "RBrace")
+                                    // parse body until {/each}
+                                    let r_body = parse_html_each_body(tokens, p)
+                                    let body_children = r_body["children"]
+                                    let p = r_body["pos"]
+                                    // r_body result map fully consumed — release to free peak heap.
+                                    el_release(r_body)
+                                    let each_node: Map<String, Any> = { "html": "Each", "list": list_expr, "item": item_name, "body": body_children }
+                                    let children = native_list_append(children, each_node)
+                                } else {
+                                    // regular {expr} — disable map-literal parsing so {fn(a,b)}
+                                    // does not trigger the LBrace→map path inside parse_primary
+                                    let prev_no_block: String = state_get("__no_block_expr")
+                                    state_set("__no_block_expr", "1")
+                                    let r = parse_expr(tokens, p + 1)
+                                    state_set("__no_block_expr", prev_no_block)
+                                    let interp_val = r["node"]
+                                    let p = r["pos"]
+                                    // r result map fully consumed — release to free peak heap.
+                                    el_release(r)
+                                    let p = expect(tokens, p, "RBrace")
+                                    // Check if the expr is a call to raw()
+                                    let is_raw_call = false
+                                    let interp_kind: String = interp_val["expr"]
+                                    if str_eq(interp_kind, "Call") {
+                                        let fn_node = interp_val["func"]
+                                        let fn_kind: String = fn_node["expr"]
+                                        if str_eq(fn_kind, "Ident") {
+                                            let fn_name_v: String = fn_node["name"]
+                                            if str_eq(fn_name_v, "raw") {
+                                                let is_raw_call = true
+                                            }
+                                        }
+                                    }
+                                    if is_raw_call {
+                                        let raw_args = interp_val["args"]
+                                        let raw_inner = native_list_get(raw_args, 0)
+                                        let children = native_list_append(children, { "html": "Raw", "value": raw_inner })
+                                    } else {
+                                        let children = native_list_append(children, { "html": "Interp", "value": interp_val })
+                                    }
+                                }
                             }
                         }
                     }
@@ -565,6 +655,27 @@ fn parse_html_element(tokens: [Any], pos: Int) -> Map<String, Any> {
     if is_void_element(tag_name) {
         return make_result({ "html": "Element", "tag": tag_name, "attrs": attrs, "children": native_list_empty(), "self_closing": true }, p)
     }
+    // raw-text mode for style/script — collect content as plain text without parsing CSS/JS as El
+    if str_eq(tag_name, "style") {
+        let r_raw = parse_raw_text_content(tokens, p, "style")
+        let raw_text: String = r_raw["text"]
+        let p = r_raw["pos"]
+        el_release(r_raw)
+        let raw_child: Map<String, Any> = { "html": "Text", "text": raw_text }
+        let raw_children: [Map<String, Any>] = native_list_empty()
+        let raw_children = native_list_append(raw_children, raw_child)
+        return make_result({ "html": "Element", "tag": tag_name, "attrs": attrs, "children": raw_children, "self_closing": false }, p)
+    }
+    if str_eq(tag_name, "script") {
+        let r_raw = parse_raw_text_content(tokens, p, "script")
+        let raw_text: String = r_raw["text"]
+        let p = r_raw["pos"]
+        el_release(r_raw)
+        let raw_child: Map<String, Any> = { "html": "Text", "text": raw_text }
+        let raw_children: [Map<String, Any>] = native_list_empty()
+        let raw_children = native_list_append(raw_children, raw_child)
+        return make_result({ "html": "Element", "tag": tag_name, "attrs": attrs, "children": raw_children, "self_closing": false }, p)
+    }
     // parse children
     let r_children = parse_html_children(tokens, p, tag_name)
     let children = r_children["children"]
@@ -718,44 +829,123 @@ fn parse_primary(tokens: [Any], pos: Int) -> Map<String, Any> {
             // as the start of the block they're expecting.
             return make_result({ "expr": "Nil" }, pos)
         }
-        let p = pos + 1
-        let pairs: [Map<String, Any>] = native_list_empty()
-        let running = true
-        while running {
-            let k2 = tok_kind(tokens, p)
-            if k2 == "RBrace" {
-                let running = false
-            } else {
-                if k2 == "Eof" {
+        // Distinguish map literal from interpolation chain.
+        // A map literal requires { key: value } — the second token inside { must be Colon.
+        // An empty {} is a map literal.  Everything else is an interpolation chain.
+        let first_k: String = tok_kind(tokens, pos + 1)
+        let second_k: String = tok_kind(tokens, pos + 2)
+        if str_eq(first_k, "RBrace") {
+            // Empty map literal {}
+            return make_result({ "expr": "Map", "pairs": native_list_empty() }, pos + 2)
+        }
+        if str_eq(second_k, "Colon") {
+            // MAP LITERAL: { key: value, ... }
+            let p = pos + 1
+            let pairs: [Map<String, Any>] = native_list_empty()
+            let running = true
+            while running {
+                let k2 = tok_kind(tokens, p)
+                if k2 == "RBrace" {
                     let running = false
                 } else {
-                    // key: Str token
-                    let key = tok_value(tokens, p)
-                    let new_p: Int = p + 1
-                    let new_p = expect(tokens, new_p, "Colon")
-                    let r = parse_expr(tokens, new_p)
-                    let val_node = r["node"]
-                    let new_p = r["pos"]
-                    // r result map fully consumed — release to free peak heap.
-                    el_release(r)
-                    let pair = { "key": key, "value": val_node }
-                    let pairs = native_list_append(pairs, pair)
-                    let k3 = tok_kind(tokens, new_p)
-                    if k3 == "Comma" {
-                        let new_p = new_p + 1
-                    }
-                    // Non-progress guard: malformed map content can leave
-                    // parse_expr returning the same pos. Force advance.
-                    if new_p <= p {
-                        let p = p + 1
+                    if k2 == "Eof" {
+                        let running = false
                     } else {
-                        let p = new_p
+                        // key: Str or Ident token
+                        let key = tok_value(tokens, p)
+                        let new_p: Int = p + 1
+                        let new_p = expect(tokens, new_p, "Colon")
+                        let r = parse_expr(tokens, new_p)
+                        let val_node = r["node"]
+                        let new_p = r["pos"]
+                        // r result map fully consumed — release to free peak heap.
+                        el_release(r)
+                        let pair = { "key": key, "value": val_node }
+                        let pairs = native_list_append(pairs, pair)
+                        let k3 = tok_kind(tokens, new_p)
+                        if k3 == "Comma" {
+                            let new_p = new_p + 1
+                        }
+                        // Non-progress guard: malformed map content can leave
+                        // parse_expr returning the same pos. Force advance.
+                        if new_p <= p {
+                            let p = p + 1
+                        } else {
+                            let p = new_p
+                        }
                     }
                 }
             }
+            let p = expect(tokens, p, "RBrace")
+            return make_result({ "expr": "Map", "pairs": pairs }, p)
         }
-        let p = expect(tokens, p, "RBrace")
-        return make_result({ "expr": "Map", "pairs": pairs }, p)
+        // INTERPOLATION CHAIN: {expr}, {expr}{expr}, {expr}<html>, etc.
+        // Build a BinOp(Plus, ...) concatenation chain.
+        let p = pos
+        let chain_node: Map<String, Any> = { "expr": "Nil" }
+        let chain_started = false
+        let chain_running = true
+        while chain_running {
+            let ck: String = tok_kind(tokens, p)
+            if str_eq(ck, "LBrace") {
+                let prev_no_block: String = state_get("__no_block_expr")
+                state_set("__no_block_expr", "1")
+                let r = parse_expr(tokens, p + 1)
+                state_set("__no_block_expr", prev_no_block)
+                let part = r["node"]
+                let p = r["pos"]
+                // r result map fully consumed — release to free peak heap.
+                el_release(r)
+                let p = expect(tokens, p, "RBrace")
+                if !chain_started {
+                    let chain_node = part
+                    let chain_started = true
+                } else {
+                    let chain_node: Map<String, Any> = { "expr": "BinOp", "op": "Plus", "left": chain_node, "right": part }
+                }
+            } else {
+                if str_eq(ck, "Lt") {
+                    let ck2: String = tok_kind(tokens, p + 1)
+                    if str_eq(ck2, "Not") {
+                        let r = parse_html_template(tokens, p)
+                        let part = r["node"]
+                        let p = r["pos"]
+                        // r result map fully consumed — release to free peak heap.
+                        el_release(r)
+                        if !chain_started {
+                            let chain_node = part
+                            let chain_started = true
+                        } else {
+                            let chain_node: Map<String, Any> = { "expr": "BinOp", "op": "Plus", "left": chain_node, "right": part }
+                        }
+                    } else {
+                        if str_eq(ck2, "Ident") {
+                            let tag_candidate: String = tok_value(tokens, p + 1)
+                            if is_html_tag_name(tag_candidate) {
+                                let r = parse_html_template(tokens, p)
+                                let part = r["node"]
+                                let p = r["pos"]
+                                // r result map fully consumed — release to free peak heap.
+                                el_release(r)
+                                if !chain_started {
+                                    let chain_node = part
+                                    let chain_started = true
+                                } else {
+                                    let chain_node: Map<String, Any> = { "expr": "BinOp", "op": "Plus", "left": chain_node, "right": part }
+                                }
+                            } else {
+                                let chain_running = false
+                            }
+                        } else {
+                            let chain_running = false
+                        }
+                    }
+                } else {
+                    let chain_running = false
+                }
+            }
+        }
+        return make_result(chain_node, p)
     }
 
     // if expression
@@ -1875,6 +2065,219 @@ fn skip_expr_to_stmt_boundary(tokens: [Any], pos: Int) -> Int {
     p
 }
 
+// scan_type_el — read a type annotation starting at pos and return its El
+// source representation as a string, plus the new position.
+// Returns { "el": String, "pos": Int }.
+// Handles: Ident, [Type], Map<K,V>, Type?, Type<T,...> (same shapes as skip_type).
+fn scan_type_el(tokens: [Any], pos: Int) -> Map<String, Any> {
+    let k: String = tok_kind(tokens, pos)
+    // Array type: [Type]
+    if str_eq(k, "LBracket") {
+        let p: Int = pos + 1
+        let inner = scan_type_el(tokens, p)
+        let inner_str: String = inner["el"]
+        let p = inner["pos"]
+        el_release(inner)
+        let p = expect(tokens, p, "RBracket")
+        return { "el": "[" + inner_str + "]", "pos": p }
+    }
+    // Named type (possibly generic or optional)
+    if str_eq(k, "Ident") {
+        let name: String = tok_value(tokens, pos)
+        let p: Int = pos + 1
+        let k2: String = tok_kind(tokens, p)
+        if str_eq(k2, "Lt") {
+            // Generic params: collect until matching >
+            let p = p + 1
+            let depth: Int = 1
+            let parts: [String] = native_list_empty()
+            let parts = native_list_append(parts, name + "<")
+            let running: Bool = true
+            while running {
+                let kk: String = tok_kind(tokens, p)
+                if str_eq(kk, "Eof") {
+                    let running = false
+                } else {
+                    if str_eq(kk, "Lt") {
+                        let depth = depth + 1
+                        let parts = native_list_append(parts, "<")
+                        let p = p + 1
+                    } else {
+                        if str_eq(kk, "Gt") {
+                            let depth = depth - 1
+                            let p = p + 1
+                            if depth <= 0 {
+                                let parts = native_list_append(parts, ">")
+                                let running = false
+                            } else {
+                                let parts = native_list_append(parts, ">")
+                            }
+                        } else {
+                            if str_eq(kk, "Comma") {
+                                let parts = native_list_append(parts, ", ")
+                                let p = p + 1
+                            } else {
+                                let parts = native_list_append(parts, tok_value(tokens, p))
+                                let p = p + 1
+                            }
+                        }
+                    }
+                }
+            }
+            let k3: String = tok_kind(tokens, p)
+            if str_eq(k3, "QuestionMark") { let p = p + 1 }
+            let result: String = str_join(parts, "")
+            el_release(parts)
+            return { "el": result, "pos": p }
+        }
+        // Optional marker
+        if str_eq(k2, "QuestionMark") {
+            return { "el": name + "?", "pos": p + 1 }
+        }
+        return { "el": name, "pos": p }
+    }
+    // Fallback: unknown token, treat as Any
+    { "el": "Any", "pos": pos + 1 }
+}
+
+// scan_params_el — scan a parameter list `(name: Type, ...)` starting at
+// position `pos` (which should point at LParen) and return the El parameter
+// declaration string (e.g. "a: String, b: Int") along with the new position.
+// Returns { "el": String, "pos": Int }.
+// Used by scan_fn_sigs_el for --emit-header without building full AST.
+fn scan_params_el(tokens: [Any], pos: Int) -> Map<String, Any> {
+    let p: Int = expect(tokens, pos, "LParen")
+    let parts: [String] = native_list_empty()
+    let going: Bool = true
+    while going {
+        let kk: String = tok_kind(tokens, p)
+        if str_eq(kk, "RParen") {
+            let going = false
+        } else {
+            if str_eq(kk, "Eof") {
+                let going = false
+            } else {
+                let pname: String = tok_value(tokens, p)
+                let p = p + 1
+                let p = expect(tokens, p, "Colon")
+                let tr = scan_type_el(tokens, p)
+                let ptype: String = tr["el"]
+                let p = tr["pos"]
+                el_release(tr)
+                let parts = native_list_append(parts, pname + ": " + ptype)
+                let k2: String = tok_kind(tokens, p)
+                if str_eq(k2, "Comma") {
+                    let p = p + 1
+                }
+            }
+        }
+    }
+    let p = expect(tokens, p, "RParen")
+    let el_str: String = str_join(parts, ", ")
+    el_release(parts)
+    { "el": el_str, "pos": p }
+}
+
+// scan_fn_sigs_el — lightweight token-level pre-scan for --emit-header.
+//
+// Like scan_fn_sigs but captures El-style type strings instead of C types.
+// Only records fn/extern_fn entries (header generation ignores lets/blocks).
+//
+// Descriptor shape:
+//   { "kind": "fn"|"extern_fn", "name": String,
+//     "params_el": String,   <- El param list, e.g. "a: String, b: Int"
+//     "ret_el": String }     <- El return type, e.g. "String" or "Void"
+//
+// Peak memory: O(tokens) with no expression AST allocation.
+fn scan_fn_sigs_el(tokens: [Any]) -> [Map<String, Any>] {
+    let total: Int = native_list_len(tokens) / 2
+    let sigs: [Map<String, Any>] = native_list_empty()
+    let pos: Int = 0
+    let going: Bool = true
+    while going {
+        if pos >= total {
+            let going = false
+        } else {
+            let k: String = tok_kind(tokens, pos)
+            if str_eq(k, "Eof") {
+                let going = false
+            } else {
+                // --- fn definition ---
+                if str_eq(k, "Fn") {
+                    let p: Int = pos + 1
+                    let name: String = tok_value(tokens, p)
+                    let p = p + 1
+                    let pr = scan_params_el(tokens, p)
+                    let params_el: String = pr["el"]
+                    let p = pr["pos"]
+                    el_release(pr)
+                    // read return type
+                    let ret_el: String = "Any"
+                    let k2: String = tok_kind(tokens, p)
+                    if str_eq(k2, "Arrow") {
+                        let p = p + 1
+                        let tr = scan_type_el(tokens, p)
+                        let ret_el = tr["el"]
+                        let p = tr["pos"]
+                        el_release(tr)
+                    }
+                    // skip body
+                    let k3: String = tok_kind(tokens, p)
+                    if str_eq(k3, "LBrace") {
+                        let p = skip_to_rbrace(tokens, p)
+                    }
+                    if !str_eq(name, "main") {
+                        let sigs = native_list_append(sigs, {
+                            "kind": "fn",
+                            "name": name,
+                            "params_el": params_el,
+                            "ret_el": ret_el
+                        })
+                    }
+                    let pos = p
+                } else {
+                // --- extern fn ---
+                if str_eq(k, "Extern") {
+                    let p: Int = pos + 1
+                    let k2: String = tok_kind(tokens, p)
+                    if str_eq(k2, "Fn") {
+                        let p = p + 1
+                        let name: String = tok_value(tokens, p)
+                        let p = p + 1
+                        let pr = scan_params_el(tokens, p)
+                        let params_el: String = pr["el"]
+                        let p = pr["pos"]
+                        el_release(pr)
+                        let ret_el: String = "Any"
+                        let k3: String = tok_kind(tokens, p)
+                        if str_eq(k3, "Arrow") {
+                            let p = p + 1
+                            let tr = scan_type_el(tokens, p)
+                            let ret_el = tr["el"]
+                            let p = tr["pos"]
+                            el_release(tr)
+                        }
+                        let sigs = native_list_append(sigs, {
+                            "kind": "extern_fn",
+                            "name": name,
+                            "params_el": params_el,
+                            "ret_el": ret_el
+                        })
+                        let pos = p
+                    } else {
+                        let pos = pos + 1
+                    }
+                } else {
+                    // Let, Cgi, Service, Import, Type, Enum, From — skip to boundary.
+                    let p: Int = pos + 1
+                    let p = skip_expr_to_stmt_boundary(tokens, p)
+                    let pos = p
+                }}}
+            }
+        }
+    sigs
+}
+
 // scan_params_c — scan a parameter list `(name: Type, ...)` starting at
 // position `pos` (which should point at LParen) and return the C parameter
 // declaration string along with the new position.

lang/elb.el

@@ -77,6 +77,33 @@ fn parse_manifest_entry(src: String) -> String {
     return ""
 }
 
+// parse_manifest_c_sources - collect all `c_source "path"` lines from the
+// build block.  Returns a flat list of path strings.
+fn parse_manifest_c_sources(src: String) -> [String] {
+    let result: [String] = native_list_empty()
+    let lines: [String] = str_split(src, "\n")
+    let n: Int = native_list_len(lines)
+    let i = 0
+    while i < n {
+        let line: String = native_list_get(lines, i)
+        let t: String = str_trim(line)
+        if str_starts_with(t, "c_source ") {
+            let after: String = str_slice(t, 9, str_len(t))
+            let trimmed: String = str_trim(after)
+            if str_starts_with(trimmed, "\"") {
+                let inner: String = str_slice(trimmed, 1, str_len(trimmed))
+                let q: Int = str_index_of(inner, "\"")
+                if q >= 0 {
+                    let path: String = str_slice(inner, 0, q)
+                    let result = native_list_append(result, path)
+                }
+            }
+        }
+        let i = i + 1
+    }
+    return result
+}
+
 fn parse_manifest_name(src: String) -> String {
     let lines: [String] = str_split(src, "\n")
     let n: Int = native_list_len(lines)
@@ -274,7 +301,18 @@ fn link_binary(c_files: [String], out_bin: String, runtime_path: String, out_dir
     // Detect clang vs gcc: -fbracket-depth is clang-only; silently ignored
     // if unsupported but gcc rejects it with an error.
     let bracket_flag: String = "$(cc --version 2>&1 | grep -q clang && printf -- '-fbracket-depth=1024' || true)"
-    let parts = native_list_append(parts, "cc -O2 " + bracket_flag + " -I " + dirname_of(runtime_path) + " -I " + out_dir)
+    // On macOS, OpenSSL is not on the default linker path. Detect homebrew
+    // prefix and add it if present (no-op on Linux where libssl is in /usr/lib).
+    let ossl_lib_flag: String = "$(brew --prefix openssl 2>/dev/null | xargs -I{} printf -- '-L{}/lib' 2>/dev/null || true)"
+    let ossl_inc_flag: String = "$(brew --prefix openssl 2>/dev/null | xargs -I{} printf -- '-I{}/include' 2>/dev/null || true)"
+    // Force-include the C-level master declarations header so every translation
+    // unit sees all cross-module function signatures. Handles packages (like ELP)
+    // where modules call each other without explicit El import statements.
+    // The header is generated by elb --gen-decls or manually placed in out_dir.
+    let master_decls: String = out_dir + "/elp-c-decls.h"
+    let has_master: String = str_trim(exec_capture("test -f " + master_decls + " && echo yes || echo no"))
+    let include_flag: String = if str_eq(has_master, "yes") { "-include " + master_decls } else { "" }
+    let parts = native_list_append(parts, "cc -O2 " + bracket_flag + " " + ossl_inc_flag + " " + include_flag + " -I " + dirname_of(runtime_path) + " -I " + out_dir)
     let i = 0
     while i < n {
         let f: String = native_list_get(c_files, i)
@@ -282,7 +320,7 @@ fn link_binary(c_files: [String], out_bin: String, runtime_path: String, out_dir
         let i = i + 1
     }
     let parts = native_list_append(parts, runtime_path)
-    let parts = native_list_append(parts, "-lcurl -lssl -lcrypto -lpthread -lm")
+    let parts = native_list_append(parts, ossl_lib_flag + " -lcurl -lssl -lcrypto -lpthread -lm")
     let parts = native_list_append(parts, "-o " + out_bin)
     let cmd: String = str_join(parts, " ")
     println("  link     " + out_bin)
@@ -315,6 +353,7 @@ fn main() -> Void {
 
     let pkg_name: String = parse_manifest_name(manifest_src)
     let entry: String    = parse_manifest_entry(manifest_src)
+    let extra_c: [String] = parse_manifest_c_sources(manifest_src)
     if str_eq(entry, "") {
         println("elb: manifest.el has no 'entry' declaration")
         exit(1)
@@ -393,6 +432,15 @@ fn main() -> Void {
         exit(1)
     }
 
+    // Append any extra C sources declared in the manifest (e.g. platform stubs)
+    let ei = 0
+    let en: Int = native_list_len(extra_c)
+    while ei < en {
+        let ec: String = native_list_get(extra_c, ei)
+        let c_files = native_list_append(c_files, ec)
+        let ei = ei + 1
+    }
+
     // Link
     let out_bin: String = out_dir + "/" + pkg_name
     let linked: Bool = link_binary(c_files, out_bin, runtime_path, out_dir, dry_run)