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+---
+name: doc-maintenance
+description: Guide documentation updates when changing versions, adding content, or preparing releases
+---
+
+# Documentation Maintenance
+
+**Purpose**: Guide documentation updates when changing versions, adding content, or preparing releases.
+
+**How it works**: This skill is automatically activated when you mention tasks related to:
+- Updating Minecraft or dependency versions
+- Adding new bosses, structures, or items
+- Preparing for a release
+- Adding new mod dependencies
+
+Simply describe what you want to do, and Claude will reference the appropriate checklist from this skill.
+
+---
+
+## Version Update Checklist
+
+**When to use**: Updating Minecraft version, mod loader versions, or dependency versions
+
+### Files to Update
+
+1. **gradle.properties**
+   - Update version properties
+   - Example: `minecraft_version=1.21.1`
+
+2. **README.md** (lines ~47-50)
+   - Section: "Requirements" → "Dependencies"
+   - Update all version numbers
+
+3. **docs/player_guide.md** (lines ~25-56)
+   - Sections: "Prerequisites" and "Required Dependencies"
+   - Update version numbers and download links
+
+4. **docs/developer_guide.md** (lines ~32-45)
+   - Section: "Key Technologies"
+   - Update version specifications
+
+5. **docs/curseforge_description.md** (lines ~125-128)
+   - Section: "Technical Details" → "Requirements" → "Dependencies"
+   - Update version numbers
+
+6. **docs/modrinth_description.md** (lines ~30-39)
+   - Sections: "Requirements" (both Fabric and NeoForge)
+   - Update version numbers
+
+7. **fabric/src/main/resources/fabric.mod.json**
+   - Update `depends` section version ranges
+   - Update `recommends` section if applicable
+
+8. **neoforge/src/main/resources/META-INF/neoforge.mods.toml**
+   - Update `[[dependencies.chronodawn]]` entries
+   - Update `versionRange` fields
+
+9. **THIRD_PARTY_LICENSES.md**
+   - Update version numbers in "Runtime Dependencies" section
+   - Update: Minecraft, Fabric Loader, Fabric API, NeoForge, Architectury API, Custom Portal API, Patchouli
+   - Update "Last updated" date at the bottom
+
+### Current Versions (Reference)
+
+```
+Minecraft: 1.21.1
+Fabric Loader: 0.17.3+
+Fabric API: 0.116.7+
+NeoForge: 21.1.209+
+Architectury API: 13.0.8+
+Custom Portal API: 0.0.1-beta66-1.21+
+Patchouli: 1.21.1-92+
+```
+
+**After updating**, update this reference list in this skill file.
+
+---
+
+## Adding a New Boss
+
+**When to use**: Adding a new boss enemy to the mod
+
+### Files to Update
+
+1. **README.md** (lines ~25-31)
+   - Section: "Boss Enemies" list
+   - Add: `- Boss Name (description, drops Item Name)`
+
+2. **docs/player_guide.md**
+   - Section: "Boss Battles"
+   - Add full entry with:
+     - Stats (Health, Attack, Defense)
+     - Abilities (list special attacks)
+     - Strategy (combat tips)
+     - Drops (items dropped)
+
+3. **docs/curseforge_description.md** (lines ~28-35)
+   - Section: "Powerful Boss Battles"
+   - Add boss to appropriate category (mini-boss, mid-boss, final boss)
+
+4. **docs/modrinth_description.md** (lines ~105-140)
+   - Section: "Boss Battles"
+   - Add boss entry with stats and abilities
+
+5. **specs/chrono-dawn-mod/spec.md**
+   - Add to User Stories if boss is critical to progression
+   - Add to Requirements section
+
+6. **specs/chrono-dawn-mod/data-model.md**
+   - Add boss entity definition with complete specifications
+
+7. **specs/chrono-dawn-mod/tasks.md**
+   - Add implementation tasks for the boss
+
+### Template
+
+```markdown
+### Boss Name (Category)
+
+**Location**: Structure Name
+
+**Stats**:
+- Health: XXX HP
+- Attack: XX damage
+- Defense: XX armor points
+
+**Abilities**:
+- Ability 1: Description
+- Ability 2: Description
+
+**Strategy**:
+- Tip 1
+- Tip 2
+
+**Drops**:
+- **Item Name**: Description
+- Experience points
+```
+
+---
+
+## Adding a New Structure
+
+**When to use**: Adding a new structure to the mod
+
+### Files to Update
+
+1. **README.md** (lines ~17-24)
+   - Section: "Major Structures" list
+   - Add: `- Structure Name (location, description)`
+
+2. **docs/player_guide.md**
+   - Section: "Exploring the Chrono Dawn" or appropriate section
+   - Add structure description and how to find it
+
+3. **docs/curseforge_description.md** (lines ~22-29)
+   - Section: "Epic Structures"
+   - Add structure to the list
+
+4. **docs/modrinth_description.md** (lines ~89-97)
+   - Section: "Structures"
+   - Add structure entry
+
+5. **specs/chrono-dawn-mod/spec.md**
+   - Add to User Stories if structure is critical
+   - Add to Requirements if needed
+
+6. **specs/chrono-dawn-mod/data-model.md**
+   - Add structure definition (generation rules, loot, etc.)
+
+---
+
+## Adding a New Ultimate Artifact
+
+**When to use**: Adding a new ultimate artifact item
+
+### Files to Update
+
+1. **README.md** (line ~32)
+   - Section: "Ultimate Artifacts" list
+   - Add: `Item Name (type), Description`
+
+2. **docs/player_guide.md**
+   - Section: "Ultimate Artifacts"
+   - Add full entry with:
+     - Stats (damage, armor, durability)
+     - Special Ability (detailed description)
+     - Recipe (crafting requirements)
+
+3. **docs/curseforge_description.md** (lines ~41-46)
+   - Section: "Ultimate Artifacts"
+   - Add brief description
+
+4. **docs/modrinth_description.md** (lines ~143-167)
+   - Section: "Ultimate Artifacts"
+   - Add item entry with ability description
+
+5. **specs/chrono-dawn-mod/data-model.md**
+   - Add item definition with complete specifications
+
+### Template
+
+```markdown
+### Item Name (Type)
+
+**Stats**:
+- Stat 1: Value
+- Stat 2: Value
+
+**Special Ability**: **Ability Name**
+- Effect description
+- Usage notes
+
+**Recipe**:
+\`\`\`
+- Ingredient 1
+- Ingredient 2
+- Ingredient 3
+\`\`\`
+```
+
+---
+
+## Updating Content Counts and Lists
+
+**When to use**: Adding or removing biomes, bosses, structures, wood types, or other countable content
+
+**Purpose**: Ensure numeric descriptions (e.g., "8 unique biomes", "4 mid-bosses", "three wood types") remain accurate across all documentation
+
+### Files to Check
+
+1. **README.md**
+   - Check: Biome count, boss count, structure count, wood type count
+   - Look for: "8 unique biomes", "Boss Enemies" list length, "Major Structures" list length
+
+2. **docs/player_guide.md**
+   - Check: Biome count, boss count (categorized: mini-boss, mid-bosses, final boss), structure count, wood type count
+   - Look for: "8 unique biomes", "three wood types", mid-boss descriptions ("4 mid-bosses")
+
+3. **docs/curseforge_description.md**
+   - Check: Biome count, boss count, structure count, artifact count
+   - Look for: "8 Unique Biomes", boss list lengths, structure list
+
+4. **docs/modrinth_description.md**
+   - Check: Biome count, boss count, structure count, wood type count
+   - Look for: "8 unique biomes", boss list, structure list
+
+5. **CLAUDE.md**
+   - Check: Current versions list if content affects version compatibility
+   - Look for: "8 unique biomes" in Recent Changes or Active Technologies
+
+### Verification Method
+
+When adding/removing content:
+1. Search for numeric descriptions (e.g., "8", "four", "4 mid-bosses")
+2. Verify counts match actual implementation
+3. Update Table of Contents if section counts change
+4. Check for phrases like "all X", "both", "each of the Y"
+
+**Tip**: Use `grep -r "8 unique biomes" docs/` to find all occurrences quickly
+
+---
+
+## Adding a New Dependency
+
+**When to use**: Adding a new mod dependency (required or optional)
+
+### Files to Update
+
+1. **gradle.properties**
+   - Add version property if needed
+   - Example: `new_mod_version=1.0.0`
+
+2. **fabric/build.gradle**
+   - Add to `dependencies` section
+   - Use `modImplementation`, `modApi`, or `modCompileOnly` as appropriate
+
+3. **neoforge/build.gradle**
+   - Add to `dependencies` section
+   - Use `modImplementation`, `modApi`, or `modCompileOnly` as appropriate
+
+4. **fabric/src/main/resources/fabric.mod.json**
+   - Add to `depends` (required) or `recommends` (optional)
+   - Specify version range
+
+5. **neoforge/src/main/resources/META-INF/neoforge.mods.toml**
+   - Add `[[dependencies.chronodawn]]` entry
+   - Set `type` to "required" or "optional"
+   - Specify `versionRange`
+
+6. **README.md** (lines ~47-50)
+   - Section: "Requirements" → "Dependencies"
+   - Add dependency with version and description
+
+7. **docs/player_guide.md** (lines ~41-56)
+   - Section: "Required Dependencies"
+   - Add numbered entry with links to CurseForge and Modrinth
+
+8. **docs/curseforge_description.md** (lines ~125-128)
+   - Section: "Requirements" → "Dependencies"
+   - Add dependency to the list
+
+9. **docs/modrinth_description.md** (lines ~30-39)
+   - Sections: "Requirements" (both Fabric and NeoForge)
+   - Add dependency to both loader sections
+
+10. **THIRD_PARTY_LICENSES.md**
+    - Add new dependency entry to "Runtime Dependencies" or "Development Dependencies" section
+    - Include: Project name, version, developer/organization, license, URL, license URL
+    - Add license summary if it's a new license type
+    - Update "Last updated" date at the bottom
+    - Research license information from project's GitHub repository or official page
+
+### Dependency Type Guidelines
+
+- **Required (`depends` / `required`)**: Mod cannot function without it
+- **Optional (`recommends` / `optional`)**: Adds features but not essential
+- **Include in JAR**: Use `include` in Fabric for bundling
+
+---
+
+## Pre-Release Verification
+
+**When to use**: Before creating a release or publishing to CurseForge/Modrinth
+
+### Checklist
+
+- [ ] **Version Consistency**
+  - All documentation files show consistent version numbers
+  - gradle.properties matches documentation
+  - fabric.mod.json and neoforge.mods.toml dependencies match gradle files
+
+- [ ] **Documentation Accuracy**
+  - README.md is accurate and up-to-date
+  - player_guide.md is complete with all features
+  - developer_guide.md reflects current architecture
+  - curseforge_description.md ready for publication
+  - modrinth_description.md ready for publication
+
+- [ ] **Configuration Files**
+  - fabric.mod.json has correct dependencies
+  - neoforge.mods.toml has correct dependencies
+  - All dependency versions are tested and working
+
+- [ ] **Build Verification**
+  - `./gradlew clean build` succeeds for both loaders
+  - JAR files are generated correctly
+  - No build warnings or errors
+
+- [ ] **Testing**
+  - All unit tests pass (`./gradlew test`)
+  - Manual testing completed (see quickstart.md checklist)
+  - Both Fabric and NeoForge builds tested in-game
+
+- [ ] **CHANGELOG** (if using)
+  - CHANGELOG.md exists and is current
+  - All user-facing changes documented
+
+- [ ] **GitHub Repository**
+  - All changes committed and pushed
+  - Branch is up-to-date with main/develop
+  - Tags are ready for release version
+
+---
+
+## Quick Reference
+
+### Documentation Files by Purpose
+
+**User-Facing**:
+- `README.md` - Project overview, installation, build instructions
+- `docs/player_guide.md` - Complete gameplay guide
+- `docs/curseforge_description.md` - CurseForge mod page content
+- `docs/modrinth_description.md` - Modrinth mod page content
+
+**Legal**:
+- `LICENSE` - Project license (MIT)
+- `THIRD_PARTY_LICENSES.md` - Dependency licenses and version information
+
+**Developer**:
+- `docs/developer_guide.md` - Development setup and architecture
+- `specs/chrono-dawn-mod/spec.md` - Feature specification
+- `specs/chrono-dawn-mod/data-model.md` - Data models
+- `specs/chrono-dawn-mod/tasks.md` - Implementation tasks
+
+**Configuration**:
+- `gradle.properties` - Version definitions
+- `fabric/src/main/resources/fabric.mod.json` - Fabric metadata
+- `neoforge/src/main/resources/META-INF/neoforge.mods.toml` - NeoForge metadata
+
+### Common Line Number References
+
+- README.md Dependencies: ~47-50
+- player_guide.md Prerequisites: ~25-56
+- developer_guide.md Technologies: ~32-45
+- curseforge_description.md Requirements: ~125-128
+- modrinth_description.md Requirements: ~30-39
+- README.md Boss List: ~25-31
+- README.md Structure List: ~17-24
+
+---
+
+## Tips
+
+1. **Always update in pairs**: When updating Fabric configs, update NeoForge configs too
+2. **Test both loaders**: Changes to dependencies affect both Fabric and NeoForge differently
+3. **Use search**: Use `grep` or IDE search to find all occurrences of version numbers
+4. **Keep CLAUDE.md current**: Update the current versions list after major updates
+5. **Commit frequently**: Commit documentation changes separately from code changes
+
+---
+
+**Last Updated**: 2025-12-08 (Added THIRD_PARTY_LICENSES.md to maintenance checklists)
+**Maintained by**: Chrono Dawn Development Team