diff --git a/.yarn/versions/3e29249f.yml b/.yarn/versions/3e29249f.yml
deleted file mode 100644
index 8073e57..0000000
--- a/.yarn/versions/3e29249f.yml
+++ /dev/null
@@ -1,13 +0,0 @@
-releases:
-  "@flex-development/docmark": 1.0.0-alpha.16
-  "@flex-development/docmark-factory-block": 1.0.0-alpha.9
-  "@flex-development/docmark-factory-identifier": 1.0.0-alpha.8
-  "@flex-development/docmark-factory-line": 1.0.0-alpha.12
-  "@flex-development/docmark-factory-markers": 1.0.0-alpha.16
-  "@flex-development/docmark-factory-space": 1.0.0-alpha.16
-  "@flex-development/docmark-grammar": 1.0.0-alpha.16
-  "@flex-development/docmark-util-combine-extensions": 1.0.0-alpha.16
-  "@flex-development/docmark-util-subtokenize": 1.0.0-alpha.16
-  "@flex-development/docmark-util-symbol": 1.0.0-alpha.10
-  "@flex-development/docmark-util-types": 1.0.0-alpha.16
-  docmark: 1.0.0-alpha.25
diff --git a/.yarnrc.yml b/.yarnrc.yml
index 8275c25..d6cbbac 100644
--- a/.yarnrc.yml
+++ b/.yarnrc.yml
@@ -2,7 +2,7 @@
 
 approvedGitRepositories:
   - '**'
-changesetBaseRefs: 1.0.0-alpha.24
+changesetBaseRefs: 1.0.0-alpha.25
 changesetIgnorePatterns:
   - '**/__fixtures__/**'
   - '**/__snapshots__/**'
diff --git a/package.json b/package.json
index 798cda4..20da737 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "docmark",
   "description": "a comment parser ecosystem with support for markdown",
-  "version": "1.0.0-alpha.24",
+  "version": "1.0.0-alpha.25",
   "keywords": [],
   "license": "BSD-3-Clause",
   "homepage": "https://github.com/flex-development/docmark",
diff --git a/packages/docmark-factory-block/CHANGELOG.md b/packages/docmark-factory-block/CHANGELOG.md
index 678720f..dde6183 100644
--- a/packages/docmark-factory-block/CHANGELOG.md
+++ b/packages/docmark-factory-block/CHANGELOG.md
@@ -1,3 +1,42 @@
+## [docmark-factory-block@1.0.0-alpha.9](https://github.com/flex-development/docmark/compare/docmark-factory-block@1.0.0-alpha.8...docmark-factory-block@1.0.0-alpha.9) (2026-09-25)
+
+### ⚠ BREAKING CHANGES
+
+- drop source language `scss`
+- indented syntax support
+- **factory-line:** emit `commentOpener` token
+
+### :package: Build
+
+- [[`509f306`](https://github.com/flex-development/docmark/commit/509f30671dcfcc147d890bccd105bb4b8fd95a64)] **deps-dev:** Bump cspell from 10.3.1 to 10.3.3 ([#290](https://github.com/flex-development/docmark/issues/290))
+- [[`6042ffc`](https://github.com/flex-development/docmark/commit/6042ffc212378ea2b159c3187f3dd26c8cb8ee3d)] **deps-dev:** bump eslint from 9.39.4 to 9.39.5
+- [[`dd9afcd`](https://github.com/flex-development/docmark/commit/dd9afcd9b2ef9f8907372a1f024e61d5d387e227)] **deps-dev:** Bump rolldown from 1.2.8 to 1.2.9 ([#291](https://github.com/flex-development/docmark/issues/291))
+- [[`54c8658`](https://github.com/flex-development/docmark/commit/54c8658afa0d8367e2ee82c01b48e8f0a843efee)] **deps-dev:** Bump rollup from 4.63.3 to 4.63.4 ([#295](https://github.com/flex-development/docmark/issues/295))
+- [[`06c7b6f`](https://github.com/flex-development/docmark/commit/06c7b6f7ab889326e93809b191d8fe2f62fb9f6a)] **deps-dev:** Bump the commitlint group with 2 updates ([#298](https://github.com/flex-development/docmark/issues/298))
+- [[`e17e4de`](https://github.com/flex-development/docmark/commit/e17e4de2702684e3c752e1656dab8730c14c7166)] **deps-dev:** Bump the vitest group with 3 updates ([#289](https://github.com/flex-development/docmark/issues/289))
+- [[`e7d1c55`](https://github.com/flex-development/docmark/commit/e7d1c55ae1f74916ca691f4a3e698c807a2baa59)] **deps-dev:** Bump tsx from 4.23.13 to 4.23.15 ([#299](https://github.com/flex-development/docmark/issues/299))
+
+### :robot: Continuous Integration
+
+- [[`79ce0e8`](https://github.com/flex-development/docmark/commit/79ce0e842a9c559e1820547b4f6302606639a65e)] **deps:** Bump codecov/codecov-action from 7.1.0 to 7.1.1 ([#288](https://github.com/flex-development/docmark/issues/288))
+
+### :sparkles: Features
+
+- [[`bedaa80`](https://github.com/flex-development/docmark/commit/bedaa8089df5cdea65cfbccc5716ae526925800f)] indented syntax support
+
+### :bug: Fixes
+
+- [[`bad3484`](https://github.com/flex-development/docmark/commit/bad3484744d199b7c2cc9a9e8ab10e4d09a558a2)] **factory-line:** open comment container after finishing opener
+
+### :house_with_garden: Housekeeping
+
+- [[`f5d3c80`](https://github.com/flex-development/docmark/commit/f5d3c8014287472854dbf7b4de177d783876e581)] fix `docmark-factory-identifier` release
+
+### :mechanical_arm: Refactors
+
+- [[`d46c6bc`](https://github.com/flex-development/docmark/commit/d46c6bc071a3d73bb2eb47c39fbfafc88b19e61a)] drop source language `scss`
+- [[`90c205d`](https://github.com/flex-development/docmark/commit/90c205d72ad98d4c2a911e8bd87cf63b3d9b49ac)] **factory-line:** emit `commentOpener` token
+
 ## [docmark-factory-block@1.0.0-alpha.8](https://github.com/flex-development/docmark/compare/docmark-factory-block@1.0.0-alpha.7...docmark-factory-block@1.0.0-alpha.8) (2026-09-20)
 
 ### :sparkles: Features
@@ -252,3 +291,4 @@
 
 
 
+
diff --git a/packages/docmark-factory-block/package.json b/packages/docmark-factory-block/package.json
index cee424d..f08d879 100644
--- a/packages/docmark-factory-block/package.json
+++ b/packages/docmark-factory-block/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@flex-development/docmark-factory-block",
   "description": "docmark factory to parse block comments",
-  "version": "1.0.0-alpha.8",
+  "version": "1.0.0-alpha.9",
   "keywords": [
     "block-comment",
     "docmark",
@@ -52,11 +52,11 @@
   "module": "./dist/index.mjs",
   "types": "./dist/index.d.mts",
   "dependencies": {
-    "@flex-development/docmark-factory-markers": "workspace:1.0.0-alpha.15",
-    "@flex-development/docmark-factory-space": "workspace:1.0.0-alpha.15",
-    "@flex-development/docmark-grammar": "workspace:1.0.0-alpha.15",
-    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.9",
-    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.15",
+    "@flex-development/docmark-factory-markers": "workspace:1.0.0-alpha.16",
+    "@flex-development/docmark-factory-space": "workspace:1.0.0-alpha.16",
+    "@flex-development/docmark-grammar": "workspace:1.0.0-alpha.16",
+    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.10",
+    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.16",
     "@flex-development/mark-util-character": "1.1.0",
     "devlop": "1.1.0"
   },
diff --git a/packages/docmark-factory-identifier/CHANGELOG.md b/packages/docmark-factory-identifier/CHANGELOG.md
index 1eac962..1216d41 100644
--- a/packages/docmark-factory-identifier/CHANGELOG.md
+++ b/packages/docmark-factory-identifier/CHANGELOG.md
@@ -1,3 +1,38 @@
+## [docmark-factory-identifier@1.0.0-alpha.8](https://github.com/flex-development/docmark/compare/docmark-factory-identifier@1.0.0-alpha.7...docmark-factory-identifier@1.0.0-alpha.8) (2026-09-25)
+
+### ⚠ BREAKING CHANGES
+
+- drop source language `scss`
+- indented syntax support
+- **factory-line:** emit `commentOpener` token
+
+### :package: Build
+
+- [[`509f306`](https://github.com/flex-development/docmark/commit/509f30671dcfcc147d890bccd105bb4b8fd95a64)] **deps-dev:** Bump cspell from 10.3.1 to 10.3.3 ([#290](https://github.com/flex-development/docmark/issues/290))
+- [[`6042ffc`](https://github.com/flex-development/docmark/commit/6042ffc212378ea2b159c3187f3dd26c8cb8ee3d)] **deps-dev:** bump eslint from 9.39.4 to 9.39.5
+- [[`dd9afcd`](https://github.com/flex-development/docmark/commit/dd9afcd9b2ef9f8907372a1f024e61d5d387e227)] **deps-dev:** Bump rolldown from 1.2.8 to 1.2.9 ([#291](https://github.com/flex-development/docmark/issues/291))
+- [[`54c8658`](https://github.com/flex-development/docmark/commit/54c8658afa0d8367e2ee82c01b48e8f0a843efee)] **deps-dev:** Bump rollup from 4.63.3 to 4.63.4 ([#295](https://github.com/flex-development/docmark/issues/295))
+- [[`06c7b6f`](https://github.com/flex-development/docmark/commit/06c7b6f7ab889326e93809b191d8fe2f62fb9f6a)] **deps-dev:** Bump the commitlint group with 2 updates ([#298](https://github.com/flex-development/docmark/issues/298))
+- [[`e17e4de`](https://github.com/flex-development/docmark/commit/e17e4de2702684e3c752e1656dab8730c14c7166)] **deps-dev:** Bump the vitest group with 3 updates ([#289](https://github.com/flex-development/docmark/issues/289))
+- [[`e7d1c55`](https://github.com/flex-development/docmark/commit/e7d1c55ae1f74916ca691f4a3e698c807a2baa59)] **deps-dev:** Bump tsx from 4.23.13 to 4.23.15 ([#299](https://github.com/flex-development/docmark/issues/299))
+
+### :robot: Continuous Integration
+
+- [[`79ce0e8`](https://github.com/flex-development/docmark/commit/79ce0e842a9c559e1820547b4f6302606639a65e)] **deps:** Bump codecov/codecov-action from 7.1.0 to 7.1.1 ([#288](https://github.com/flex-development/docmark/issues/288))
+
+### :sparkles: Features
+
+- [[`bedaa80`](https://github.com/flex-development/docmark/commit/bedaa8089df5cdea65cfbccc5716ae526925800f)] indented syntax support
+
+### :bug: Fixes
+
+- [[`bad3484`](https://github.com/flex-development/docmark/commit/bad3484744d199b7c2cc9a9e8ab10e4d09a558a2)] **factory-line:** open comment container after finishing opener
+
+### :mechanical_arm: Refactors
+
+- [[`d46c6bc`](https://github.com/flex-development/docmark/commit/d46c6bc071a3d73bb2eb47c39fbfafc88b19e61a)] drop source language `scss`
+- [[`90c205d`](https://github.com/flex-development/docmark/commit/90c205d72ad98d4c2a911e8bd87cf63b3d9b49ac)] **factory-line:** emit `commentOpener` token
+
 ## [docmark-factory-identifier@1.0.0-alpha.7](https://github.com/flex-development/docmark/compare/docmark-factory-identifier@1.0.0-alpha.6...docmark-factory-identifier@1.0.0-alpha.7) (2026-09-21)
 
 ### :sparkles: Features
@@ -274,3 +309,4 @@
 
 
 
+
diff --git a/packages/docmark-factory-identifier/package.json b/packages/docmark-factory-identifier/package.json
index 35b189a..223a741 100644
--- a/packages/docmark-factory-identifier/package.json
+++ b/packages/docmark-factory-identifier/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@flex-development/docmark-factory-identifier",
   "description": "docmark factory to parse identifiers",
-  "version": "1.0.0-alpha.7",
+  "version": "1.0.0-alpha.8",
   "keywords": [
     "docmark",
     "factory",
@@ -49,8 +49,8 @@
   "module": "./dist/index.mjs",
   "types": "./dist/index.d.mts",
   "dependencies": {
-    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.9",
-    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.15",
+    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.10",
+    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.16",
     "@flex-development/mark-util-character": "1.1.0"
   },
   "sideEffects": false
diff --git a/packages/docmark-factory-line/CHANGELOG.md b/packages/docmark-factory-line/CHANGELOG.md
index 9818e00..83f1517 100644
--- a/packages/docmark-factory-line/CHANGELOG.md
+++ b/packages/docmark-factory-line/CHANGELOG.md
@@ -1,3 +1,23 @@
+## [docmark-factory-line@1.0.0-alpha.12](https://github.com/flex-development/docmark/compare/docmark-factory-line@1.0.0-alpha.11...docmark-factory-line@1.0.0-alpha.12) (2026-09-25)
+
+### ⚠ BREAKING CHANGES
+
+- drop source language `scss`
+- indented syntax support
+
+### :package: Build
+
+- [[`06c7b6f`](https://github.com/flex-development/docmark/commit/06c7b6f7ab889326e93809b191d8fe2f62fb9f6a)] **deps-dev:** Bump the commitlint group with 2 updates ([#298](https://github.com/flex-development/docmark/issues/298))
+- [[`e7d1c55`](https://github.com/flex-development/docmark/commit/e7d1c55ae1f74916ca691f4a3e698c807a2baa59)] **deps-dev:** Bump tsx from 4.23.13 to 4.23.15 ([#299](https://github.com/flex-development/docmark/issues/299))
+
+### :sparkles: Features
+
+- [[`bedaa80`](https://github.com/flex-development/docmark/commit/bedaa8089df5cdea65cfbccc5716ae526925800f)] indented syntax support
+
+### :mechanical_arm: Refactors
+
+- [[`d46c6bc`](https://github.com/flex-development/docmark/commit/d46c6bc071a3d73bb2eb47c39fbfafc88b19e61a)] drop source language `scss`
+
 ## [docmark-factory-line@1.0.0-alpha.11](https://github.com/flex-development/docmark/compare/docmark-factory-line@1.0.0-alpha.10...docmark-factory-line@1.0.0-alpha.11) (2026-09-22)
 
 ### :package: Build
@@ -292,3 +312,4 @@
 
 
 
+
diff --git a/packages/docmark-factory-line/package.json b/packages/docmark-factory-line/package.json
index 8c63d5f..aec22c4 100644
--- a/packages/docmark-factory-line/package.json
+++ b/packages/docmark-factory-line/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@flex-development/docmark-factory-line",
   "description": "docmark factory to parse line comments",
-  "version": "1.0.0-alpha.11",
+  "version": "1.0.0-alpha.12",
   "keywords": [
     "docmark",
     "factory",
@@ -54,11 +54,11 @@
   "module": "./dist/index.mjs",
   "types": "./dist/index.d.mts",
   "dependencies": {
-    "@flex-development/docmark-factory-markers": "workspace:1.0.0-alpha.15",
-    "@flex-development/docmark-factory-space": "workspace:1.0.0-alpha.15",
-    "@flex-development/docmark-grammar": "workspace:1.0.0-alpha.15",
-    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.9",
-    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.15",
+    "@flex-development/docmark-factory-markers": "workspace:1.0.0-alpha.16",
+    "@flex-development/docmark-factory-space": "workspace:1.0.0-alpha.16",
+    "@flex-development/docmark-grammar": "workspace:1.0.0-alpha.16",
+    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.10",
+    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.16",
     "@flex-development/mark-util-character": "1.1.0",
     "devlop": "1.1.0"
   },
diff --git a/packages/docmark-factory-markers/CHANGELOG.md b/packages/docmark-factory-markers/CHANGELOG.md
index 75c7c3a..ceacdfb 100644
--- a/packages/docmark-factory-markers/CHANGELOG.md
+++ b/packages/docmark-factory-markers/CHANGELOG.md
@@ -1,3 +1,42 @@
+## [docmark-factory-markers@1.0.0-alpha.16](https://github.com/flex-development/docmark/compare/docmark-factory-markers@1.0.0-alpha.15...docmark-factory-markers@1.0.0-alpha.16) (2026-09-25)
+
+### ⚠ BREAKING CHANGES
+
+- drop source language `scss`
+- indented syntax support
+- **factory-line:** emit `commentOpener` token
+
+### :package: Build
+
+- [[`509f306`](https://github.com/flex-development/docmark/commit/509f30671dcfcc147d890bccd105bb4b8fd95a64)] **deps-dev:** Bump cspell from 10.3.1 to 10.3.3 ([#290](https://github.com/flex-development/docmark/issues/290))
+- [[`6042ffc`](https://github.com/flex-development/docmark/commit/6042ffc212378ea2b159c3187f3dd26c8cb8ee3d)] **deps-dev:** bump eslint from 9.39.4 to 9.39.5
+- [[`dd9afcd`](https://github.com/flex-development/docmark/commit/dd9afcd9b2ef9f8907372a1f024e61d5d387e227)] **deps-dev:** Bump rolldown from 1.2.8 to 1.2.9 ([#291](https://github.com/flex-development/docmark/issues/291))
+- [[`54c8658`](https://github.com/flex-development/docmark/commit/54c8658afa0d8367e2ee82c01b48e8f0a843efee)] **deps-dev:** Bump rollup from 4.63.3 to 4.63.4 ([#295](https://github.com/flex-development/docmark/issues/295))
+- [[`06c7b6f`](https://github.com/flex-development/docmark/commit/06c7b6f7ab889326e93809b191d8fe2f62fb9f6a)] **deps-dev:** Bump the commitlint group with 2 updates ([#298](https://github.com/flex-development/docmark/issues/298))
+- [[`e17e4de`](https://github.com/flex-development/docmark/commit/e17e4de2702684e3c752e1656dab8730c14c7166)] **deps-dev:** Bump the vitest group with 3 updates ([#289](https://github.com/flex-development/docmark/issues/289))
+- [[`e7d1c55`](https://github.com/flex-development/docmark/commit/e7d1c55ae1f74916ca691f4a3e698c807a2baa59)] **deps-dev:** Bump tsx from 4.23.13 to 4.23.15 ([#299](https://github.com/flex-development/docmark/issues/299))
+
+### :robot: Continuous Integration
+
+- [[`79ce0e8`](https://github.com/flex-development/docmark/commit/79ce0e842a9c559e1820547b4f6302606639a65e)] **deps:** Bump codecov/codecov-action from 7.1.0 to 7.1.1 ([#288](https://github.com/flex-development/docmark/issues/288))
+
+### :sparkles: Features
+
+- [[`bedaa80`](https://github.com/flex-development/docmark/commit/bedaa8089df5cdea65cfbccc5716ae526925800f)] indented syntax support
+
+### :bug: Fixes
+
+- [[`bad3484`](https://github.com/flex-development/docmark/commit/bad3484744d199b7c2cc9a9e8ab10e4d09a558a2)] **factory-line:** open comment container after finishing opener
+
+### :house_with_garden: Housekeeping
+
+- [[`f5d3c80`](https://github.com/flex-development/docmark/commit/f5d3c8014287472854dbf7b4de177d783876e581)] fix `docmark-factory-identifier` release
+
+### :mechanical_arm: Refactors
+
+- [[`d46c6bc`](https://github.com/flex-development/docmark/commit/d46c6bc071a3d73bb2eb47c39fbfafc88b19e61a)] drop source language `scss`
+- [[`90c205d`](https://github.com/flex-development/docmark/commit/90c205d72ad98d4c2a911e8bd87cf63b3d9b49ac)] **factory-line:** emit `commentOpener` token
+
 ## [docmark-factory-markers@1.0.0-alpha.15](https://github.com/flex-development/docmark/compare/docmark-factory-markers@1.0.0-alpha.14...docmark-factory-markers@1.0.0-alpha.15) (2026-09-20)
 
 ### :sparkles: Features
@@ -339,3 +378,4 @@
 
 
 
+
diff --git a/packages/docmark-factory-markers/package.json b/packages/docmark-factory-markers/package.json
index 59a215a..94e0e6f 100644
--- a/packages/docmark-factory-markers/package.json
+++ b/packages/docmark-factory-markers/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@flex-development/docmark-factory-markers",
   "description": "docmark factory to parse comment markers",
-  "version": "1.0.0-alpha.15",
+  "version": "1.0.0-alpha.16",
   "keywords": [
     "comment",
     "docmark",
@@ -54,8 +54,8 @@
   "module": "./dist/index.mjs",
   "types": "./dist/index.d.mts",
   "dependencies": {
-    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.9",
-    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.15",
+    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.10",
+    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.16",
     "@flex-development/mark": "1.0.0-alpha.4",
     "devlop": "1.1.0"
   },
diff --git a/packages/docmark-factory-space/CHANGELOG.md b/packages/docmark-factory-space/CHANGELOG.md
index fbe9556..99c56a1 100644
--- a/packages/docmark-factory-space/CHANGELOG.md
+++ b/packages/docmark-factory-space/CHANGELOG.md
@@ -1,3 +1,42 @@
+## [docmark-factory-space@1.0.0-alpha.16](https://github.com/flex-development/docmark/compare/docmark-factory-space@1.0.0-alpha.15...docmark-factory-space@1.0.0-alpha.16) (2026-09-25)
+
+### ⚠ BREAKING CHANGES
+
+- drop source language `scss`
+- indented syntax support
+- **factory-line:** emit `commentOpener` token
+
+### :package: Build
+
+- [[`509f306`](https://github.com/flex-development/docmark/commit/509f30671dcfcc147d890bccd105bb4b8fd95a64)] **deps-dev:** Bump cspell from 10.3.1 to 10.3.3 ([#290](https://github.com/flex-development/docmark/issues/290))
+- [[`6042ffc`](https://github.com/flex-development/docmark/commit/6042ffc212378ea2b159c3187f3dd26c8cb8ee3d)] **deps-dev:** bump eslint from 9.39.4 to 9.39.5
+- [[`dd9afcd`](https://github.com/flex-development/docmark/commit/dd9afcd9b2ef9f8907372a1f024e61d5d387e227)] **deps-dev:** Bump rolldown from 1.2.8 to 1.2.9 ([#291](https://github.com/flex-development/docmark/issues/291))
+- [[`54c8658`](https://github.com/flex-development/docmark/commit/54c8658afa0d8367e2ee82c01b48e8f0a843efee)] **deps-dev:** Bump rollup from 4.63.3 to 4.63.4 ([#295](https://github.com/flex-development/docmark/issues/295))
+- [[`06c7b6f`](https://github.com/flex-development/docmark/commit/06c7b6f7ab889326e93809b191d8fe2f62fb9f6a)] **deps-dev:** Bump the commitlint group with 2 updates ([#298](https://github.com/flex-development/docmark/issues/298))
+- [[`e17e4de`](https://github.com/flex-development/docmark/commit/e17e4de2702684e3c752e1656dab8730c14c7166)] **deps-dev:** Bump the vitest group with 3 updates ([#289](https://github.com/flex-development/docmark/issues/289))
+- [[`e7d1c55`](https://github.com/flex-development/docmark/commit/e7d1c55ae1f74916ca691f4a3e698c807a2baa59)] **deps-dev:** Bump tsx from 4.23.13 to 4.23.15 ([#299](https://github.com/flex-development/docmark/issues/299))
+
+### :robot: Continuous Integration
+
+- [[`79ce0e8`](https://github.com/flex-development/docmark/commit/79ce0e842a9c559e1820547b4f6302606639a65e)] **deps:** Bump codecov/codecov-action from 7.1.0 to 7.1.1 ([#288](https://github.com/flex-development/docmark/issues/288))
+
+### :sparkles: Features
+
+- [[`bedaa80`](https://github.com/flex-development/docmark/commit/bedaa8089df5cdea65cfbccc5716ae526925800f)] indented syntax support
+
+### :bug: Fixes
+
+- [[`bad3484`](https://github.com/flex-development/docmark/commit/bad3484744d199b7c2cc9a9e8ab10e4d09a558a2)] **factory-line:** open comment container after finishing opener
+
+### :house_with_garden: Housekeeping
+
+- [[`f5d3c80`](https://github.com/flex-development/docmark/commit/f5d3c8014287472854dbf7b4de177d783876e581)] fix `docmark-factory-identifier` release
+
+### :mechanical_arm: Refactors
+
+- [[`d46c6bc`](https://github.com/flex-development/docmark/commit/d46c6bc071a3d73bb2eb47c39fbfafc88b19e61a)] drop source language `scss`
+- [[`90c205d`](https://github.com/flex-development/docmark/commit/90c205d72ad98d4c2a911e8bd87cf63b3d9b49ac)] **factory-line:** emit `commentOpener` token
+
 ## [docmark-factory-space@1.0.0-alpha.15](https://github.com/flex-development/docmark/compare/docmark-factory-space@1.0.0-alpha.14...docmark-factory-space@1.0.0-alpha.15) (2026-09-20)
 
 ### :sparkles: Features
@@ -406,5 +445,6 @@
 
 
 
+
 
 
diff --git a/packages/docmark-factory-space/package.json b/packages/docmark-factory-space/package.json
index d150b4e..a2fcdde 100644
--- a/packages/docmark-factory-space/package.json
+++ b/packages/docmark-factory-space/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@flex-development/docmark-factory-space",
   "description": "docmark factory to parse docmark space",
-  "version": "1.0.0-alpha.15",
+  "version": "1.0.0-alpha.16",
   "keywords": [
     "docmark",
     "factory",
@@ -49,7 +49,7 @@
   "module": "./dist/index.mjs",
   "types": "./dist/index.d.mts",
   "dependencies": {
-    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.15",
+    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.16",
     "@flex-development/mark-util-character": "1.1.0",
     "micromark-util-types": "2.0.2"
   },
diff --git a/packages/docmark-grammar/CHANGELOG.md b/packages/docmark-grammar/CHANGELOG.md
index bafa247..5ec3e1a 100644
--- a/packages/docmark-grammar/CHANGELOG.md
+++ b/packages/docmark-grammar/CHANGELOG.md
@@ -1,3 +1,42 @@
+## [docmark-grammar@1.0.0-alpha.16](https://github.com/flex-development/docmark/compare/docmark-grammar@1.0.0-alpha.15...docmark-grammar@1.0.0-alpha.16) (2026-09-25)
+
+### ⚠ BREAKING CHANGES
+
+- drop source language `scss`
+- indented syntax support
+- **factory-line:** emit `commentOpener` token
+
+### :package: Build
+
+- [[`509f306`](https://github.com/flex-development/docmark/commit/509f30671dcfcc147d890bccd105bb4b8fd95a64)] **deps-dev:** Bump cspell from 10.3.1 to 10.3.3 ([#290](https://github.com/flex-development/docmark/issues/290))
+- [[`6042ffc`](https://github.com/flex-development/docmark/commit/6042ffc212378ea2b159c3187f3dd26c8cb8ee3d)] **deps-dev:** bump eslint from 9.39.4 to 9.39.5
+- [[`dd9afcd`](https://github.com/flex-development/docmark/commit/dd9afcd9b2ef9f8907372a1f024e61d5d387e227)] **deps-dev:** Bump rolldown from 1.2.8 to 1.2.9 ([#291](https://github.com/flex-development/docmark/issues/291))
+- [[`54c8658`](https://github.com/flex-development/docmark/commit/54c8658afa0d8367e2ee82c01b48e8f0a843efee)] **deps-dev:** Bump rollup from 4.63.3 to 4.63.4 ([#295](https://github.com/flex-development/docmark/issues/295))
+- [[`06c7b6f`](https://github.com/flex-development/docmark/commit/06c7b6f7ab889326e93809b191d8fe2f62fb9f6a)] **deps-dev:** Bump the commitlint group with 2 updates ([#298](https://github.com/flex-development/docmark/issues/298))
+- [[`e17e4de`](https://github.com/flex-development/docmark/commit/e17e4de2702684e3c752e1656dab8730c14c7166)] **deps-dev:** Bump the vitest group with 3 updates ([#289](https://github.com/flex-development/docmark/issues/289))
+- [[`e7d1c55`](https://github.com/flex-development/docmark/commit/e7d1c55ae1f74916ca691f4a3e698c807a2baa59)] **deps-dev:** Bump tsx from 4.23.13 to 4.23.15 ([#299](https://github.com/flex-development/docmark/issues/299))
+
+### :robot: Continuous Integration
+
+- [[`79ce0e8`](https://github.com/flex-development/docmark/commit/79ce0e842a9c559e1820547b4f6302606639a65e)] **deps:** Bump codecov/codecov-action from 7.1.0 to 7.1.1 ([#288](https://github.com/flex-development/docmark/issues/288))
+
+### :sparkles: Features
+
+- [[`bedaa80`](https://github.com/flex-development/docmark/commit/bedaa8089df5cdea65cfbccc5716ae526925800f)] indented syntax support
+
+### :bug: Fixes
+
+- [[`bad3484`](https://github.com/flex-development/docmark/commit/bad3484744d199b7c2cc9a9e8ab10e4d09a558a2)] **factory-line:** open comment container after finishing opener
+
+### :house_with_garden: Housekeeping
+
+- [[`f5d3c80`](https://github.com/flex-development/docmark/commit/f5d3c8014287472854dbf7b4de177d783876e581)] fix `docmark-factory-identifier` release
+
+### :mechanical_arm: Refactors
+
+- [[`d46c6bc`](https://github.com/flex-development/docmark/commit/d46c6bc071a3d73bb2eb47c39fbfafc88b19e61a)] drop source language `scss`
+- [[`90c205d`](https://github.com/flex-development/docmark/commit/90c205d72ad98d4c2a911e8bd87cf63b3d9b49ac)] **factory-line:** emit `commentOpener` token
+
 ## [docmark-grammar@1.0.0-alpha.15](https://github.com/flex-development/docmark/compare/docmark-grammar@1.0.0-alpha.14...docmark-grammar@1.0.0-alpha.15) (2026-09-20)
 
 ### :sparkles: Features
@@ -393,5 +432,6 @@
 
 
 
+
 
 
diff --git a/packages/docmark-grammar/package.json b/packages/docmark-grammar/package.json
index 72cc728..e5a2062 100644
--- a/packages/docmark-grammar/package.json
+++ b/packages/docmark-grammar/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@flex-development/docmark-grammar",
   "description": "core docmark constructs and utilities",
-  "version": "1.0.0-alpha.15",
+  "version": "1.0.0-alpha.16",
   "keywords": [
     "commonmark",
     "docdown",
@@ -61,9 +61,9 @@
     "attw": "tsc --build tsconfig.build.json --clean --dry && tsc --build tsconfig.build.json --clean && tsc --build tsconfig.build.json --verbose"
   },
   "dependencies": {
-    "@flex-development/docmark-factory-space": "workspace:1.0.0-alpha.15",
-    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.9",
-    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.15",
+    "@flex-development/docmark-factory-space": "workspace:1.0.0-alpha.16",
+    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.10",
+    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.16",
     "@flex-development/mark-util-character": "1.1.0",
     "devlop": "1.1.0"
   },
diff --git a/packages/docmark-util-combine-extensions/CHANGELOG.md b/packages/docmark-util-combine-extensions/CHANGELOG.md
index 89e10bb..da8e337 100644
--- a/packages/docmark-util-combine-extensions/CHANGELOG.md
+++ b/packages/docmark-util-combine-extensions/CHANGELOG.md
@@ -1,3 +1,42 @@
+## [docmark-util-combine-extensions@1.0.0-alpha.16](https://github.com/flex-development/docmark/compare/docmark-util-combine-extensions@1.0.0-alpha.15...docmark-util-combine-extensions@1.0.0-alpha.16) (2026-09-25)
+
+### ⚠ BREAKING CHANGES
+
+- drop source language `scss`
+- indented syntax support
+- **factory-line:** emit `commentOpener` token
+
+### :package: Build
+
+- [[`509f306`](https://github.com/flex-development/docmark/commit/509f30671dcfcc147d890bccd105bb4b8fd95a64)] **deps-dev:** Bump cspell from 10.3.1 to 10.3.3 ([#290](https://github.com/flex-development/docmark/issues/290))
+- [[`6042ffc`](https://github.com/flex-development/docmark/commit/6042ffc212378ea2b159c3187f3dd26c8cb8ee3d)] **deps-dev:** bump eslint from 9.39.4 to 9.39.5
+- [[`dd9afcd`](https://github.com/flex-development/docmark/commit/dd9afcd9b2ef9f8907372a1f024e61d5d387e227)] **deps-dev:** Bump rolldown from 1.2.8 to 1.2.9 ([#291](https://github.com/flex-development/docmark/issues/291))
+- [[`54c8658`](https://github.com/flex-development/docmark/commit/54c8658afa0d8367e2ee82c01b48e8f0a843efee)] **deps-dev:** Bump rollup from 4.63.3 to 4.63.4 ([#295](https://github.com/flex-development/docmark/issues/295))
+- [[`06c7b6f`](https://github.com/flex-development/docmark/commit/06c7b6f7ab889326e93809b191d8fe2f62fb9f6a)] **deps-dev:** Bump the commitlint group with 2 updates ([#298](https://github.com/flex-development/docmark/issues/298))
+- [[`e17e4de`](https://github.com/flex-development/docmark/commit/e17e4de2702684e3c752e1656dab8730c14c7166)] **deps-dev:** Bump the vitest group with 3 updates ([#289](https://github.com/flex-development/docmark/issues/289))
+- [[`e7d1c55`](https://github.com/flex-development/docmark/commit/e7d1c55ae1f74916ca691f4a3e698c807a2baa59)] **deps-dev:** Bump tsx from 4.23.13 to 4.23.15 ([#299](https://github.com/flex-development/docmark/issues/299))
+
+### :robot: Continuous Integration
+
+- [[`79ce0e8`](https://github.com/flex-development/docmark/commit/79ce0e842a9c559e1820547b4f6302606639a65e)] **deps:** Bump codecov/codecov-action from 7.1.0 to 7.1.1 ([#288](https://github.com/flex-development/docmark/issues/288))
+
+### :sparkles: Features
+
+- [[`bedaa80`](https://github.com/flex-development/docmark/commit/bedaa8089df5cdea65cfbccc5716ae526925800f)] indented syntax support
+
+### :bug: Fixes
+
+- [[`bad3484`](https://github.com/flex-development/docmark/commit/bad3484744d199b7c2cc9a9e8ab10e4d09a558a2)] **factory-line:** open comment container after finishing opener
+
+### :house_with_garden: Housekeeping
+
+- [[`f5d3c80`](https://github.com/flex-development/docmark/commit/f5d3c8014287472854dbf7b4de177d783876e581)] fix `docmark-factory-identifier` release
+
+### :mechanical_arm: Refactors
+
+- [[`d46c6bc`](https://github.com/flex-development/docmark/commit/d46c6bc071a3d73bb2eb47c39fbfafc88b19e61a)] drop source language `scss`
+- [[`90c205d`](https://github.com/flex-development/docmark/commit/90c205d72ad98d4c2a911e8bd87cf63b3d9b49ac)] **factory-line:** emit `commentOpener` token
+
 ## [docmark-util-combine-extensions@1.0.0-alpha.15](https://github.com/flex-development/docmark/compare/docmark-util-combine-extensions@1.0.0-alpha.14...docmark-util-combine-extensions@1.0.0-alpha.15) (2026-09-20)
 
 ### :sparkles: Features
@@ -393,5 +432,6 @@
 
 
 
+
 
 
diff --git a/packages/docmark-util-combine-extensions/package.json b/packages/docmark-util-combine-extensions/package.json
index be3e01d..bb03b32 100644
--- a/packages/docmark-util-combine-extensions/package.json
+++ b/packages/docmark-util-combine-extensions/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@flex-development/docmark-util-combine-extensions",
   "description": "docmark utility to combine extensions",
-  "version": "1.0.0-alpha.15",
+  "version": "1.0.0-alpha.16",
   "keywords": [
     "docmark",
     "extension",
@@ -54,7 +54,7 @@
   "module": "./dist/index.mjs",
   "types": "./dist/index.d.mts",
   "dependencies": {
-    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.15",
+    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.16",
     "@flex-development/mark-util-chunked": "1.0.0",
     "devlop": "1.1.0"
   },
diff --git a/packages/docmark-util-subtokenize/CHANGELOG.md b/packages/docmark-util-subtokenize/CHANGELOG.md
index eb8bebd..6fcca32 100644
--- a/packages/docmark-util-subtokenize/CHANGELOG.md
+++ b/packages/docmark-util-subtokenize/CHANGELOG.md
@@ -1,3 +1,42 @@
+## [docmark-util-subtokenize@1.0.0-alpha.16](https://github.com/flex-development/docmark/compare/docmark-util-subtokenize@1.0.0-alpha.15...docmark-util-subtokenize@1.0.0-alpha.16) (2026-09-25)
+
+### ⚠ BREAKING CHANGES
+
+- drop source language `scss`
+- indented syntax support
+- **factory-line:** emit `commentOpener` token
+
+### :package: Build
+
+- [[`509f306`](https://github.com/flex-development/docmark/commit/509f30671dcfcc147d890bccd105bb4b8fd95a64)] **deps-dev:** Bump cspell from 10.3.1 to 10.3.3 ([#290](https://github.com/flex-development/docmark/issues/290))
+- [[`6042ffc`](https://github.com/flex-development/docmark/commit/6042ffc212378ea2b159c3187f3dd26c8cb8ee3d)] **deps-dev:** bump eslint from 9.39.4 to 9.39.5
+- [[`dd9afcd`](https://github.com/flex-development/docmark/commit/dd9afcd9b2ef9f8907372a1f024e61d5d387e227)] **deps-dev:** Bump rolldown from 1.2.8 to 1.2.9 ([#291](https://github.com/flex-development/docmark/issues/291))
+- [[`54c8658`](https://github.com/flex-development/docmark/commit/54c8658afa0d8367e2ee82c01b48e8f0a843efee)] **deps-dev:** Bump rollup from 4.63.3 to 4.63.4 ([#295](https://github.com/flex-development/docmark/issues/295))
+- [[`06c7b6f`](https://github.com/flex-development/docmark/commit/06c7b6f7ab889326e93809b191d8fe2f62fb9f6a)] **deps-dev:** Bump the commitlint group with 2 updates ([#298](https://github.com/flex-development/docmark/issues/298))
+- [[`e17e4de`](https://github.com/flex-development/docmark/commit/e17e4de2702684e3c752e1656dab8730c14c7166)] **deps-dev:** Bump the vitest group with 3 updates ([#289](https://github.com/flex-development/docmark/issues/289))
+- [[`e7d1c55`](https://github.com/flex-development/docmark/commit/e7d1c55ae1f74916ca691f4a3e698c807a2baa59)] **deps-dev:** Bump tsx from 4.23.13 to 4.23.15 ([#299](https://github.com/flex-development/docmark/issues/299))
+
+### :robot: Continuous Integration
+
+- [[`79ce0e8`](https://github.com/flex-development/docmark/commit/79ce0e842a9c559e1820547b4f6302606639a65e)] **deps:** Bump codecov/codecov-action from 7.1.0 to 7.1.1 ([#288](https://github.com/flex-development/docmark/issues/288))
+
+### :sparkles: Features
+
+- [[`bedaa80`](https://github.com/flex-development/docmark/commit/bedaa8089df5cdea65cfbccc5716ae526925800f)] indented syntax support
+
+### :bug: Fixes
+
+- [[`bad3484`](https://github.com/flex-development/docmark/commit/bad3484744d199b7c2cc9a9e8ab10e4d09a558a2)] **factory-line:** open comment container after finishing opener
+
+### :house_with_garden: Housekeeping
+
+- [[`f5d3c80`](https://github.com/flex-development/docmark/commit/f5d3c8014287472854dbf7b4de177d783876e581)] fix `docmark-factory-identifier` release
+
+### :mechanical_arm: Refactors
+
+- [[`d46c6bc`](https://github.com/flex-development/docmark/commit/d46c6bc071a3d73bb2eb47c39fbfafc88b19e61a)] drop source language `scss`
+- [[`90c205d`](https://github.com/flex-development/docmark/commit/90c205d72ad98d4c2a911e8bd87cf63b3d9b49ac)] **factory-line:** emit `commentOpener` token
+
 ## [docmark-util-subtokenize@1.0.0-alpha.15](https://github.com/flex-development/docmark/compare/docmark-util-subtokenize@1.0.0-alpha.14...docmark-util-subtokenize@1.0.0-alpha.15) (2026-09-20)
 
 ### :sparkles: Features
@@ -393,5 +432,6 @@
 
 
 
+
 
 
diff --git a/packages/docmark-util-subtokenize/package.json b/packages/docmark-util-subtokenize/package.json
index ff6b389..04d3caf 100644
--- a/packages/docmark-util-subtokenize/package.json
+++ b/packages/docmark-util-subtokenize/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@flex-development/docmark-util-subtokenize",
   "description": "docmark utility to tokenize subtokens",
-  "version": "1.0.0-alpha.15",
+  "version": "1.0.0-alpha.16",
   "keywords": [
     "docmark",
     "tokenize",
@@ -50,8 +50,8 @@
   "module": "./dist/index.mjs",
   "types": "./dist/index.d.mts",
   "dependencies": {
-    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.9",
-    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.15",
+    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.10",
+    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.16",
     "@flex-development/mark-util-chunked": "1.0.0",
     "devlop": "1.1.0"
   },
diff --git a/packages/docmark-util-symbol/CHANGELOG.md b/packages/docmark-util-symbol/CHANGELOG.md
index 03f8581..bcb2658 100644
--- a/packages/docmark-util-symbol/CHANGELOG.md
+++ b/packages/docmark-util-symbol/CHANGELOG.md
@@ -1,3 +1,42 @@
+## [docmark-util-symbol@1.0.0-alpha.10](https://github.com/flex-development/docmark/compare/docmark-util-symbol@1.0.0-alpha.9...docmark-util-symbol@1.0.0-alpha.10) (2026-09-25)
+
+### ⚠ BREAKING CHANGES
+
+- drop source language `scss`
+- indented syntax support
+- **factory-line:** emit `commentOpener` token
+
+### :package: Build
+
+- [[`509f306`](https://github.com/flex-development/docmark/commit/509f30671dcfcc147d890bccd105bb4b8fd95a64)] **deps-dev:** Bump cspell from 10.3.1 to 10.3.3 ([#290](https://github.com/flex-development/docmark/issues/290))
+- [[`6042ffc`](https://github.com/flex-development/docmark/commit/6042ffc212378ea2b159c3187f3dd26c8cb8ee3d)] **deps-dev:** bump eslint from 9.39.4 to 9.39.5
+- [[`dd9afcd`](https://github.com/flex-development/docmark/commit/dd9afcd9b2ef9f8907372a1f024e61d5d387e227)] **deps-dev:** Bump rolldown from 1.2.8 to 1.2.9 ([#291](https://github.com/flex-development/docmark/issues/291))
+- [[`54c8658`](https://github.com/flex-development/docmark/commit/54c8658afa0d8367e2ee82c01b48e8f0a843efee)] **deps-dev:** Bump rollup from 4.63.3 to 4.63.4 ([#295](https://github.com/flex-development/docmark/issues/295))
+- [[`06c7b6f`](https://github.com/flex-development/docmark/commit/06c7b6f7ab889326e93809b191d8fe2f62fb9f6a)] **deps-dev:** Bump the commitlint group with 2 updates ([#298](https://github.com/flex-development/docmark/issues/298))
+- [[`e17e4de`](https://github.com/flex-development/docmark/commit/e17e4de2702684e3c752e1656dab8730c14c7166)] **deps-dev:** Bump the vitest group with 3 updates ([#289](https://github.com/flex-development/docmark/issues/289))
+- [[`e7d1c55`](https://github.com/flex-development/docmark/commit/e7d1c55ae1f74916ca691f4a3e698c807a2baa59)] **deps-dev:** Bump tsx from 4.23.13 to 4.23.15 ([#299](https://github.com/flex-development/docmark/issues/299))
+
+### :robot: Continuous Integration
+
+- [[`79ce0e8`](https://github.com/flex-development/docmark/commit/79ce0e842a9c559e1820547b4f6302606639a65e)] **deps:** Bump codecov/codecov-action from 7.1.0 to 7.1.1 ([#288](https://github.com/flex-development/docmark/issues/288))
+
+### :sparkles: Features
+
+- [[`bedaa80`](https://github.com/flex-development/docmark/commit/bedaa8089df5cdea65cfbccc5716ae526925800f)] indented syntax support
+
+### :bug: Fixes
+
+- [[`bad3484`](https://github.com/flex-development/docmark/commit/bad3484744d199b7c2cc9a9e8ab10e4d09a558a2)] **factory-line:** open comment container after finishing opener
+
+### :house_with_garden: Housekeeping
+
+- [[`f5d3c80`](https://github.com/flex-development/docmark/commit/f5d3c8014287472854dbf7b4de177d783876e581)] fix `docmark-factory-identifier` release
+
+### :mechanical_arm: Refactors
+
+- [[`d46c6bc`](https://github.com/flex-development/docmark/commit/d46c6bc071a3d73bb2eb47c39fbfafc88b19e61a)] drop source language `scss`
+- [[`90c205d`](https://github.com/flex-development/docmark/commit/90c205d72ad98d4c2a911e8bd87cf63b3d9b49ac)] **factory-line:** emit `commentOpener` token
+
 ## [docmark-util-symbol@1.0.0-alpha.9](https://github.com/flex-development/docmark/compare/docmark-util-symbol@1.0.0-alpha.8...docmark-util-symbol@1.0.0-alpha.9) (2026-09-20)
 
 ### ⚠ BREAKING CHANGES
@@ -358,5 +397,6 @@
 
 
 
+
 
 
diff --git a/packages/docmark-util-symbol/package.json b/packages/docmark-util-symbol/package.json
index d6b309f..b748f38 100644
--- a/packages/docmark-util-symbol/package.json
+++ b/packages/docmark-util-symbol/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@flex-development/docmark-util-symbol",
   "description": "docmark utility with symbols",
-  "version": "1.0.0-alpha.9",
+  "version": "1.0.0-alpha.10",
   "keywords": [
     "docmark",
     "symbol",
diff --git a/packages/docmark-util-types/CHANGELOG.md b/packages/docmark-util-types/CHANGELOG.md
index 0b03e31..18b649e 100644
--- a/packages/docmark-util-types/CHANGELOG.md
+++ b/packages/docmark-util-types/CHANGELOG.md
@@ -1,3 +1,42 @@
+## [docmark-util-types@1.0.0-alpha.16](https://github.com/flex-development/docmark/compare/docmark-util-types@1.0.0-alpha.15...docmark-util-types@1.0.0-alpha.16) (2026-09-25)
+
+### ⚠ BREAKING CHANGES
+
+- drop source language `scss`
+- indented syntax support
+- **factory-line:** emit `commentOpener` token
+
+### :package: Build
+
+- [[`509f306`](https://github.com/flex-development/docmark/commit/509f30671dcfcc147d890bccd105bb4b8fd95a64)] **deps-dev:** Bump cspell from 10.3.1 to 10.3.3 ([#290](https://github.com/flex-development/docmark/issues/290))
+- [[`6042ffc`](https://github.com/flex-development/docmark/commit/6042ffc212378ea2b159c3187f3dd26c8cb8ee3d)] **deps-dev:** bump eslint from 9.39.4 to 9.39.5
+- [[`dd9afcd`](https://github.com/flex-development/docmark/commit/dd9afcd9b2ef9f8907372a1f024e61d5d387e227)] **deps-dev:** Bump rolldown from 1.2.8 to 1.2.9 ([#291](https://github.com/flex-development/docmark/issues/291))
+- [[`54c8658`](https://github.com/flex-development/docmark/commit/54c8658afa0d8367e2ee82c01b48e8f0a843efee)] **deps-dev:** Bump rollup from 4.63.3 to 4.63.4 ([#295](https://github.com/flex-development/docmark/issues/295))
+- [[`06c7b6f`](https://github.com/flex-development/docmark/commit/06c7b6f7ab889326e93809b191d8fe2f62fb9f6a)] **deps-dev:** Bump the commitlint group with 2 updates ([#298](https://github.com/flex-development/docmark/issues/298))
+- [[`e17e4de`](https://github.com/flex-development/docmark/commit/e17e4de2702684e3c752e1656dab8730c14c7166)] **deps-dev:** Bump the vitest group with 3 updates ([#289](https://github.com/flex-development/docmark/issues/289))
+- [[`e7d1c55`](https://github.com/flex-development/docmark/commit/e7d1c55ae1f74916ca691f4a3e698c807a2baa59)] **deps-dev:** Bump tsx from 4.23.13 to 4.23.15 ([#299](https://github.com/flex-development/docmark/issues/299))
+
+### :robot: Continuous Integration
+
+- [[`79ce0e8`](https://github.com/flex-development/docmark/commit/79ce0e842a9c559e1820547b4f6302606639a65e)] **deps:** Bump codecov/codecov-action from 7.1.0 to 7.1.1 ([#288](https://github.com/flex-development/docmark/issues/288))
+
+### :sparkles: Features
+
+- [[`bedaa80`](https://github.com/flex-development/docmark/commit/bedaa8089df5cdea65cfbccc5716ae526925800f)] indented syntax support
+
+### :bug: Fixes
+
+- [[`bad3484`](https://github.com/flex-development/docmark/commit/bad3484744d199b7c2cc9a9e8ab10e4d09a558a2)] **factory-line:** open comment container after finishing opener
+
+### :house_with_garden: Housekeeping
+
+- [[`f5d3c80`](https://github.com/flex-development/docmark/commit/f5d3c8014287472854dbf7b4de177d783876e581)] fix `docmark-factory-identifier` release
+
+### :mechanical_arm: Refactors
+
+- [[`d46c6bc`](https://github.com/flex-development/docmark/commit/d46c6bc071a3d73bb2eb47c39fbfafc88b19e61a)] drop source language `scss`
+- [[`90c205d`](https://github.com/flex-development/docmark/commit/90c205d72ad98d4c2a911e8bd87cf63b3d9b49ac)] **factory-line:** emit `commentOpener` token
+
 ## [docmark-util-types@1.0.0-alpha.15](https://github.com/flex-development/docmark/compare/docmark-util-types@1.0.0-alpha.14...docmark-util-types@1.0.0-alpha.15) (2026-09-20)
 
 ### :sparkles: Features
@@ -415,5 +454,6 @@
 
 
 
+
 
 
diff --git a/packages/docmark-util-types/package.json b/packages/docmark-util-types/package.json
index 3a27a97..ba97c41 100644
--- a/packages/docmark-util-types/package.json
+++ b/packages/docmark-util-types/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@flex-development/docmark-util-types",
   "description": "docmark utility types",
-  "version": "1.0.0-alpha.15",
+  "version": "1.0.0-alpha.16",
   "keywords": [
     "docmark",
     "types",
diff --git a/packages/docmark/CHANGELOG.md b/packages/docmark/CHANGELOG.md
index 8e02895..40c89ed 100644
--- a/packages/docmark/CHANGELOG.md
+++ b/packages/docmark/CHANGELOG.md
@@ -1,3 +1,42 @@
+## [docmark@1.0.0-alpha.16](https://github.com/flex-development/docmark/compare/docmark@1.0.0-alpha.15...docmark@1.0.0-alpha.16) (2026-09-25)
+
+### ⚠ BREAKING CHANGES
+
+- drop source language `scss`
+- indented syntax support
+- **factory-line:** emit `commentOpener` token
+
+### :package: Build
+
+- [[`509f306`](https://github.com/flex-development/docmark/commit/509f30671dcfcc147d890bccd105bb4b8fd95a64)] **deps-dev:** Bump cspell from 10.3.1 to 10.3.3 ([#290](https://github.com/flex-development/docmark/issues/290))
+- [[`6042ffc`](https://github.com/flex-development/docmark/commit/6042ffc212378ea2b159c3187f3dd26c8cb8ee3d)] **deps-dev:** bump eslint from 9.39.4 to 9.39.5
+- [[`dd9afcd`](https://github.com/flex-development/docmark/commit/dd9afcd9b2ef9f8907372a1f024e61d5d387e227)] **deps-dev:** Bump rolldown from 1.2.8 to 1.2.9 ([#291](https://github.com/flex-development/docmark/issues/291))
+- [[`54c8658`](https://github.com/flex-development/docmark/commit/54c8658afa0d8367e2ee82c01b48e8f0a843efee)] **deps-dev:** Bump rollup from 4.63.3 to 4.63.4 ([#295](https://github.com/flex-development/docmark/issues/295))
+- [[`06c7b6f`](https://github.com/flex-development/docmark/commit/06c7b6f7ab889326e93809b191d8fe2f62fb9f6a)] **deps-dev:** Bump the commitlint group with 2 updates ([#298](https://github.com/flex-development/docmark/issues/298))
+- [[`e17e4de`](https://github.com/flex-development/docmark/commit/e17e4de2702684e3c752e1656dab8730c14c7166)] **deps-dev:** Bump the vitest group with 3 updates ([#289](https://github.com/flex-development/docmark/issues/289))
+- [[`e7d1c55`](https://github.com/flex-development/docmark/commit/e7d1c55ae1f74916ca691f4a3e698c807a2baa59)] **deps-dev:** Bump tsx from 4.23.13 to 4.23.15 ([#299](https://github.com/flex-development/docmark/issues/299))
+
+### :robot: Continuous Integration
+
+- [[`79ce0e8`](https://github.com/flex-development/docmark/commit/79ce0e842a9c559e1820547b4f6302606639a65e)] **deps:** Bump codecov/codecov-action from 7.1.0 to 7.1.1 ([#288](https://github.com/flex-development/docmark/issues/288))
+
+### :sparkles: Features
+
+- [[`bedaa80`](https://github.com/flex-development/docmark/commit/bedaa8089df5cdea65cfbccc5716ae526925800f)] indented syntax support
+
+### :bug: Fixes
+
+- [[`bad3484`](https://github.com/flex-development/docmark/commit/bad3484744d199b7c2cc9a9e8ab10e4d09a558a2)] **factory-line:** open comment container after finishing opener
+
+### :house_with_garden: Housekeeping
+
+- [[`f5d3c80`](https://github.com/flex-development/docmark/commit/f5d3c8014287472854dbf7b4de177d783876e581)] fix `docmark-factory-identifier` release
+
+### :mechanical_arm: Refactors
+
+- [[`d46c6bc`](https://github.com/flex-development/docmark/commit/d46c6bc071a3d73bb2eb47c39fbfafc88b19e61a)] drop source language `scss`
+- [[`90c205d`](https://github.com/flex-development/docmark/commit/90c205d72ad98d4c2a911e8bd87cf63b3d9b49ac)] **factory-line:** emit `commentOpener` token
+
 ## [docmark@1.0.0-alpha.15](https://github.com/flex-development/docmark/compare/docmark@1.0.0-alpha.14...docmark@1.0.0-alpha.15) (2026-09-20)
 
 ### :sparkles: Features
@@ -393,5 +432,6 @@
 
 
 
+
 
 
diff --git a/packages/docmark/package.json b/packages/docmark/package.json
index 950c1b5..f1e991f 100644
--- a/packages/docmark/package.json
+++ b/packages/docmark/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@flex-development/docmark",
   "description": "commonmark compliant documentation parser with positional info and concrete tokens",
-  "version": "1.0.0-alpha.15",
+  "version": "1.0.0-alpha.16",
   "keywords": [
     "comment",
     "commonmark",
@@ -78,12 +78,12 @@
     "attw": "tsc --build tsconfig.build.json --clean --dry && tsc --build tsconfig.build.json --clean && tsc --build tsconfig.build.json --verbose"
   },
   "dependencies": {
-    "@flex-development/docmark-factory-space": "workspace:1.0.0-alpha.15",
-    "@flex-development/docmark-grammar": "workspace:1.0.0-alpha.15",
-    "@flex-development/docmark-util-combine-extensions": "workspace:1.0.0-alpha.15",
-    "@flex-development/docmark-util-subtokenize": "workspace:1.0.0-alpha.15",
-    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.9",
-    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.15",
+    "@flex-development/docmark-factory-space": "workspace:1.0.0-alpha.16",
+    "@flex-development/docmark-grammar": "workspace:1.0.0-alpha.16",
+    "@flex-development/docmark-util-combine-extensions": "workspace:1.0.0-alpha.16",
+    "@flex-development/docmark-util-subtokenize": "workspace:1.0.0-alpha.16",
+    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.10",
+    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.16",
     "@flex-development/mark": "1.0.0-alpha.4",
     "@flex-development/mark-parser": "1.0.0-alpha.19",
     "@flex-development/mark-util-character": "1.1.0",
diff --git a/versions/1.0.0-alpha.25.json b/versions/1.0.0-alpha.25.json
new file mode 100644
index 0000000..96dda24
--- /dev/null
+++ b/versions/1.0.0-alpha.25.json
@@ -0,0 +1,14 @@
+{
+  "@flex-development/docmark": "1.0.0-alpha.16",
+  "@flex-development/docmark-factory-block": "1.0.0-alpha.9",
+  "@flex-development/docmark-factory-identifier": "1.0.0-alpha.8",
+  "@flex-development/docmark-factory-line": "1.0.0-alpha.12",
+  "@flex-development/docmark-factory-markers": "1.0.0-alpha.16",
+  "@flex-development/docmark-factory-space": "1.0.0-alpha.16",
+  "@flex-development/docmark-grammar": "1.0.0-alpha.16",
+  "@flex-development/docmark-util-combine-extensions": "1.0.0-alpha.16",
+  "@flex-development/docmark-util-subtokenize": "1.0.0-alpha.16",
+  "@flex-development/docmark-util-symbol": "1.0.0-alpha.10",
+  "@flex-development/docmark-util-types": "1.0.0-alpha.16",
+  "docmark": "1.0.0-alpha.25"
+}
diff --git a/yarn.lock b/yarn.lock
index 1204605..13f590b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1697,11 +1697,11 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@flex-development/docmark-factory-block@workspace:packages/docmark-factory-block"
   dependencies:
-    "@flex-development/docmark-factory-markers": "workspace:1.0.0-alpha.15"
-    "@flex-development/docmark-factory-space": "workspace:1.0.0-alpha.15"
-    "@flex-development/docmark-grammar": "workspace:1.0.0-alpha.15"
-    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.9"
-    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.15"
+    "@flex-development/docmark-factory-markers": "workspace:1.0.0-alpha.16"
+    "@flex-development/docmark-factory-space": "workspace:1.0.0-alpha.16"
+    "@flex-development/docmark-grammar": "workspace:1.0.0-alpha.16"
+    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.10"
+    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.16"
     "@flex-development/mark-util-character": "npm:1.1.0"
     devlop: "npm:1.1.0"
   languageName: unknown
@@ -1711,8 +1711,8 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@flex-development/docmark-factory-identifier@workspace:packages/docmark-factory-identifier"
   dependencies:
-    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.9"
-    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.15"
+    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.10"
+    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.16"
     "@flex-development/mark-util-character": "npm:1.1.0"
   languageName: unknown
   linkType: soft
@@ -1721,73 +1721,73 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@flex-development/docmark-factory-line@workspace:packages/docmark-factory-line"
   dependencies:
-    "@flex-development/docmark-factory-markers": "workspace:1.0.0-alpha.15"
-    "@flex-development/docmark-factory-space": "workspace:1.0.0-alpha.15"
-    "@flex-development/docmark-grammar": "workspace:1.0.0-alpha.15"
-    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.9"
-    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.15"
+    "@flex-development/docmark-factory-markers": "workspace:1.0.0-alpha.16"
+    "@flex-development/docmark-factory-space": "workspace:1.0.0-alpha.16"
+    "@flex-development/docmark-grammar": "workspace:1.0.0-alpha.16"
+    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.10"
+    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.16"
     "@flex-development/mark-util-character": "npm:1.1.0"
     devlop: "npm:1.1.0"
   languageName: unknown
   linkType: soft
 
-"@flex-development/docmark-factory-markers@workspace:*, @flex-development/docmark-factory-markers@workspace:1.0.0-alpha.15, @flex-development/docmark-factory-markers@workspace:packages/docmark-factory-markers":
+"@flex-development/docmark-factory-markers@workspace:*, @flex-development/docmark-factory-markers@workspace:1.0.0-alpha.16, @flex-development/docmark-factory-markers@workspace:packages/docmark-factory-markers":
   version: 0.0.0-use.local
   resolution: "@flex-development/docmark-factory-markers@workspace:packages/docmark-factory-markers"
   dependencies:
-    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.9"
-    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.15"
+    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.10"
+    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.16"
     "@flex-development/mark": "npm:1.0.0-alpha.4"
     devlop: "npm:1.1.0"
   languageName: unknown
   linkType: soft
 
-"@flex-development/docmark-factory-space@workspace:1.0.0-alpha.15, @flex-development/docmark-factory-space@workspace:packages/docmark-factory-space":
+"@flex-development/docmark-factory-space@workspace:1.0.0-alpha.16, @flex-development/docmark-factory-space@workspace:packages/docmark-factory-space":
   version: 0.0.0-use.local
   resolution: "@flex-development/docmark-factory-space@workspace:packages/docmark-factory-space"
   dependencies:
-    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.15"
+    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.16"
     "@flex-development/mark-util-character": "npm:1.1.0"
     micromark-util-types: "npm:2.0.2"
   languageName: unknown
   linkType: soft
 
-"@flex-development/docmark-grammar@workspace:*, @flex-development/docmark-grammar@workspace:1.0.0-alpha.15, @flex-development/docmark-grammar@workspace:packages/docmark-grammar":
+"@flex-development/docmark-grammar@workspace:*, @flex-development/docmark-grammar@workspace:1.0.0-alpha.16, @flex-development/docmark-grammar@workspace:packages/docmark-grammar":
   version: 0.0.0-use.local
   resolution: "@flex-development/docmark-grammar@workspace:packages/docmark-grammar"
   dependencies:
-    "@flex-development/docmark-factory-space": "workspace:1.0.0-alpha.15"
-    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.9"
-    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.15"
+    "@flex-development/docmark-factory-space": "workspace:1.0.0-alpha.16"
+    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.10"
+    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.16"
     "@flex-development/mark-util-character": "npm:1.1.0"
     devlop: "npm:1.1.0"
   languageName: unknown
   linkType: soft
 
-"@flex-development/docmark-util-combine-extensions@workspace:1.0.0-alpha.15, @flex-development/docmark-util-combine-extensions@workspace:packages/docmark-util-combine-extensions":
+"@flex-development/docmark-util-combine-extensions@workspace:1.0.0-alpha.16, @flex-development/docmark-util-combine-extensions@workspace:packages/docmark-util-combine-extensions":
   version: 0.0.0-use.local
   resolution: "@flex-development/docmark-util-combine-extensions@workspace:packages/docmark-util-combine-extensions"
   dependencies:
     "@flex-development/docmark-grammar": "workspace:*"
     "@flex-development/docmark-util-symbol": "workspace:*"
-    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.15"
+    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.16"
     "@flex-development/mark-util-chunked": "npm:1.0.0"
     devlop: "npm:1.1.0"
   languageName: unknown
   linkType: soft
 
-"@flex-development/docmark-util-subtokenize@workspace:1.0.0-alpha.15, @flex-development/docmark-util-subtokenize@workspace:packages/docmark-util-subtokenize":
+"@flex-development/docmark-util-subtokenize@workspace:1.0.0-alpha.16, @flex-development/docmark-util-subtokenize@workspace:packages/docmark-util-subtokenize":
   version: 0.0.0-use.local
   resolution: "@flex-development/docmark-util-subtokenize@workspace:packages/docmark-util-subtokenize"
   dependencies:
-    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.9"
-    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.15"
+    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.10"
+    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.16"
     "@flex-development/mark-util-chunked": "npm:1.0.0"
     devlop: "npm:1.1.0"
   languageName: unknown
   linkType: soft
 
-"@flex-development/docmark-util-symbol@workspace:*, @flex-development/docmark-util-symbol@workspace:1.0.0-alpha.9, @flex-development/docmark-util-symbol@workspace:packages/docmark-util-symbol":
+"@flex-development/docmark-util-symbol@workspace:*, @flex-development/docmark-util-symbol@workspace:1.0.0-alpha.10, @flex-development/docmark-util-symbol@workspace:packages/docmark-util-symbol":
   version: 0.0.0-use.local
   resolution: "@flex-development/docmark-util-symbol@workspace:packages/docmark-util-symbol"
   dependencies:
@@ -1795,7 +1795,7 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@flex-development/docmark-util-types@workspace:1.0.0-alpha.15, @flex-development/docmark-util-types@workspace:packages/docmark-util-types":
+"@flex-development/docmark-util-types@workspace:1.0.0-alpha.16, @flex-development/docmark-util-types@workspace:packages/docmark-util-types":
   version: 0.0.0-use.local
   resolution: "@flex-development/docmark-util-types@workspace:packages/docmark-util-types"
   dependencies:
@@ -1813,12 +1813,12 @@ __metadata:
     "@flex-development/docmark-factory-identifier": "workspace:*"
     "@flex-development/docmark-factory-line": "workspace:*"
     "@flex-development/docmark-factory-markers": "workspace:*"
-    "@flex-development/docmark-factory-space": "workspace:1.0.0-alpha.15"
-    "@flex-development/docmark-grammar": "workspace:1.0.0-alpha.15"
-    "@flex-development/docmark-util-combine-extensions": "workspace:1.0.0-alpha.15"
-    "@flex-development/docmark-util-subtokenize": "workspace:1.0.0-alpha.15"
-    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.9"
-    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.15"
+    "@flex-development/docmark-factory-space": "workspace:1.0.0-alpha.16"
+    "@flex-development/docmark-grammar": "workspace:1.0.0-alpha.16"
+    "@flex-development/docmark-util-combine-extensions": "workspace:1.0.0-alpha.16"
+    "@flex-development/docmark-util-subtokenize": "workspace:1.0.0-alpha.16"
+    "@flex-development/docmark-util-symbol": "workspace:1.0.0-alpha.10"
+    "@flex-development/docmark-util-types": "workspace:1.0.0-alpha.16"
     "@flex-development/mark": "npm:1.0.0-alpha.4"
     "@flex-development/mark-parser": "npm:1.0.0-alpha.19"
     "@flex-development/mark-util-character": "npm:1.1.0"