diff --git a/CHANGELOG.md b/CHANGELOG.md
index b6ff98f..acfabed 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,9 @@ All notable changes to Skill Seeker will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [3.1.3] - 2026-02-24
+
+### 🐛 Hotfix — Explicit Chunk Flags & Argument Pipeline Cleanup
 
 ### Fixed
 - **Issue #299: `skill-seekers package --target claude` unrecognised argument crash** — `_reconstruct_argv()` in `main.py` emits default flag values back into argv when routing subcommands. `package_skill.py` had a 105-line inline argparser that used different flag names to those in `arguments/package.py`, so forwarded flags were rejected. Fixed by replacing the inline block with a call to `add_package_arguments(parser)` — the single source of truth.
diff --git a/CLAUDE.md b/CLAUDE.md
index 32c3d87..7f0250c 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -6,7 +6,7 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 
 **Skill Seekers** is the **universal documentation preprocessor** for AI systems. It transforms documentation websites, GitHub repositories, and PDFs into production-ready formats for **16+ platforms**: RAG pipelines (LangChain, LlamaIndex, Haystack), vector databases (Pinecone, Chroma, Weaviate, FAISS, Qdrant), AI coding assistants (Cursor, Windsurf, Cline, Continue.dev), and LLM platforms (Claude, Gemini, OpenAI).
 
-**Current Version:** v3.1.2-dev
+**Current Version:** v3.1.3
 **Python Version:** 3.10+ required
 **Status:** Production-ready, published on PyPI
 **Website:** https://skillseekersweb.com/ - Browse configs, share, and access documentation
@@ -2256,7 +2256,7 @@ The `scripts/` directory contains utility scripts:
 
 ## 🎉 Recent Achievements
 
-**v3.1.2 (In Development) - "Unified Argument Interface":**
+**v3.1.3 (Released) - "Unified Argument Interface":**
 - 🔧 **Unified Scraper Arguments** - All scrapers (scrape, github, analyze, pdf) now share a common argument contract via `add_all_standard_arguments(parser)` in `arguments/common.py`
 - 🐛 **Fix `create` Argument Forwarding** - `create <url> --dry-run`, `create owner/repo --dry-run`, `create ./path --dry-run` all work now (previously crashed)
 - 🏗️ **Argument Deduplication** - Removed duplicated arg definitions from github.py, scrape.py, analyze.py, pdf.py; all import shared args
diff --git a/pyproject.toml b/pyproject.toml
index f405532..f6b9430 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "skill-seekers"
-version = "3.1.2"
+version = "3.1.3"
 description = "Convert documentation websites, GitHub repositories, and PDFs into Claude AI skills. International support with Chinese (简体中文) documentation."
 readme = "README.md"
 requires-python = ">=3.10"
diff --git a/src/skill_seekers/_version.py b/src/skill_seekers/_version.py
index 8438eb6..52c494d 100644
--- a/src/skill_seekers/_version.py
+++ b/src/skill_seekers/_version.py
@@ -28,7 +28,7 @@ def get_version() -> str:
     """
     if tomllib is None:
         # Fallback if TOML library not available
-        return "3.1.1"  # Hardcoded fallback
+        return "3.1.3"  # Hardcoded fallback
 
     try:
         # Get path to pyproject.toml (3 levels up from this file)
@@ -37,7 +37,7 @@ def get_version() -> str:
 
         if not pyproject_path.exists():
             # Fallback for installed package
-            return "3.1.1"  # Hardcoded fallback
+            return "3.1.3"  # Hardcoded fallback
 
         with open(pyproject_path, "rb") as f:
             pyproject_data = tomllib.load(f)
@@ -46,7 +46,7 @@ def get_version() -> str:
 
     except Exception:
         # Fallback if anything goes wrong
-        return "3.1.1"  # Hardcoded fallback
+        return "3.1.3"  # Hardcoded fallback
 
 
 __version__ = get_version()
diff --git a/tests/test_cli_paths.py b/tests/test_cli_paths.py
index 9a50f0e..ad4e1af 100644
--- a/tests/test_cli_paths.py
+++ b/tests/test_cli_paths.py
@@ -138,7 +138,7 @@ class TestUnifiedCLIEntryPoints(unittest.TestCase):
 
             # Should show version
             output = result.stdout + result.stderr
-            self.assertIn("3.1.2", output)
+            self.assertIn("3.1.3", output)
 
         except FileNotFoundError:
             # If skill-seekers is not installed, skip this test
diff --git a/tests/test_package_structure.py b/tests/test_package_structure.py
index d5b9d7b..9a506fb 100644
--- a/tests/test_package_structure.py
+++ b/tests/test_package_structure.py
@@ -24,7 +24,7 @@ class TestCliPackage:
         import skill_seekers.cli
 
         assert hasattr(skill_seekers.cli, "__version__")
-        assert skill_seekers.cli.__version__ == "3.1.2"
+        assert skill_seekers.cli.__version__ == "3.1.3"
 
     def test_cli_has_all(self):
         """Test that skill_seekers.cli package has __all__ export list."""
@@ -88,7 +88,7 @@ class TestMcpPackage:
         import skill_seekers.mcp
 
         assert hasattr(skill_seekers.mcp, "__version__")
-        assert skill_seekers.mcp.__version__ == "3.1.2"
+        assert skill_seekers.mcp.__version__ == "3.1.3"
 
     def test_mcp_has_all(self):
         """Test that skill_seekers.mcp package has __all__ export list."""
@@ -108,7 +108,7 @@ class TestMcpPackage:
         import skill_seekers.mcp.tools
 
         assert hasattr(skill_seekers.mcp.tools, "__version__")
-        assert skill_seekers.mcp.tools.__version__ == "3.1.2"
+        assert skill_seekers.mcp.tools.__version__ == "3.1.3"
 
 
 class TestPackageStructure:
@@ -212,7 +212,7 @@ class TestRootPackage:
         import skill_seekers
 
         assert hasattr(skill_seekers, "__version__")
-        assert skill_seekers.__version__ == "3.1.2"
+        assert skill_seekers.__version__ == "3.1.3"
 
     def test_root_has_metadata(self):
         """Test that skill_seekers root package has metadata."""