Add Content Skill

Generic file creation Skill that works with any directory structure by reading RULE.md to understand purpose and rules.

When to use this Skill

• User says "save", "create", "add", "note", "記錄", "筆記"
• User provides content to store
• User provides URLs to archive
• User mentions "readlater", "bookmark", "save article"
• User requests content preservation

Workflow

1. Content Analysis

Determine content type:

• URL: Web content to archive
• Text: Note or article
• Code: Code snippet
• Structured data: JSON, YAML, etc.
• Mixed: Multiple content types

Extract key information:

• Main topics and themes
• Keywords and technical terms
• Content category (technical, personal, work, etc.)
• Content length and complexity

2. Directory Discovery

Scan knowledge base:

1. Identify root directory (current working directory or user-specified)
2. List main directories using ls or Glob
3. Read RULE.md from each main directory
4. Build directory catalog with purposes

Example scan result:

ReadLater/ - Purpose: "Archive web content for later reading"
Research/ - Purpose: "Technical and academic research notes"
Work/ - Purpose: "Professional work-related content"
Personal/ - Purpose: "Personal life documentation"
Miscellaneous/ - Purpose: "General notes and articles"

3. Smart Classification

Match content to directories:

1. Analyze content topics vs directory purposes
2. Check if content type matches directory specialization
3. Consider user's past behavior (if known)
4. Rank directories by suitability (0-100 score)

Classification logic:

• URL + directory purpose mentions "web archival" → high score
• Technical content + directory purpose mentions "research" → high score
• Work keywords + directory purpose mentions "professional" → high score
• Default to "Miscellaneous" or similar general-purpose directory

4. User Confirmation

Present recommendation:

I analyzed your content about [topic].

Recommended location: [Directory]/
Reason: [Why this directory suits the content]

Is this correct?
- Yes (proceed with this directory)
- No, use different directory (please specify path)
- Show me other options

If user requests alternatives:

• Show top 3 ranked directories with scores and reasons
• Allow user to choose or specify custom path

If user specifies custom path:

• Validate path exists or create if requested
• Continue with specified path

5. Read Target RULE.md

Locate and read RULE.md:

1. Check target directory for RULE.md
2. If not found, check parent directories (inheritance)
3. If no RULE.md found, ask user if should create one

Parse RULE.md for:

• File naming conventions (e.g., YYYY-MM-DD-title.md)
• Required file structure (e.g., directories, metadata files)
• Frontmatter requirements (if any)
• Special instructions (e.g., "fetch from URL", "generate summary")
• Business logic workflows (e.g., web archival process)
• Format examples

6. Execute Operation Per RULE.md

Follow RULE.md instructions exactly:

Example 1 - Simple Note:

RULE.md says: "Files named YYYY-MM-DD-title.md with markdown format"
→ Generate filename: 2025-10-28-transformer-architecture.md
→ Create file with content
→ Save in target directory

Example 2 - Web Archival:

RULE.md says:
"When user provides URL:
1. Fetch content using WebFetch
2. Convert to markdown
3. Create directory: Articles/YYYY/MM/YYYY-MM-DD_title-slug/
4. Save article.md and metadata.yaml"

→ Execute WebFetch on URL
→ Extract title, content, date
→ Convert to clean markdown
→ Create directory structure
→ Save article.md with content
→ Create metadata.yaml with:
  - url: [original URL]
  - title: [article title]
  - date: [fetch date]
  - summary: [brief summary]
→ Optionally save images if referenced

Example 3 - Structured Content (WorkLog):

RULE.md says:
"Daily logs in YYYY/QX/MM-Month/ structure.
MUST verify datetime first.
Format: [specific template shown in RULE.md]"

→ Execute `date` command to verify current date
→ Parse date: 2025-10-28 → 2025/Q4/10-October/
→ Check if directory structure exists, create if needed
→ Read RULE.md template section
→ Create/update 2025-10-28.md with template format
→ Fill in sections per RULE.md specifications

Key principles:

• Execute special instructions literally (e.g., "fetch from URL")
• Follow naming conventions exactly
• Create directories as specified
• Include required metadata/frontmatter
• Apply format examples shown in RULE.md

7. Governance Update

Update README.md:

1. Read current README.md in target directory
2. Find appropriate section (Files, Subdirectories, etc.)
3. Add new entry with:
   • Filename with link
   • Brief description (from content analysis or user input)
   • Timestamp: current date
4. Update "Recent Changes" section
5. Update "Last updated" timestamp
6. Save README.md

Update parent README.md if needed:

• If created new subdirectory, update parent's README.md
• Add entry for new subdirectory with description

Verify updates:

• Check README.md is valid markdown
• Ensure no duplicate entries
• Confirm timestamps are current

8. Report to User

Confirm operation complete:

✅ Content created successfully

Location: [full path to file]
Format: [file format used]
Governance: [which RULE.md applied]

README.md updated:
- [target directory]/README.md
- [parent directory]/README.md (if applicable)

Summary:
[Brief summary of what was created and where]

Special Cases

URL Content Archival

When content is URL and RULE.md specifies archival:

1. Validate URL:

   • Check URL format is valid
   • Optionally test if URL is accessible

2. Check for Duplicates:

   • Search existing README.md for this URL
   • If found: warn user, ask if should re-archive

3. Fetch Content:

   • Use WebFetch tool with prompt: "Extract the main article content, title, and publication date"
   • Handle fetch errors gracefully

4. Process Content:

   • Convert HTML to clean markdown
   • Extract images if RULE.md requests
   • Generate title slug for directory name
   • Create brief summary (2-3 sentences)

5. Save Per RULE.md:

   • Follow directory structure exactly
   • Create all specified files
   • Include all required metadata

Structured Content with Frontmatter

If RULE.md requires YAML frontmatter:

---
title: [Title]
date: [Date]
tags: [tag1, tag2]
category: [Category]
---

[Content here]

Generate frontmatter with:

• Required fields per RULE.md
• Inferred values from content analysis
• User-provided metadata if available

Multiple Files

If RULE.md specifies creating multiple files:

1. Create all files in specified order
2. Ensure cross-references are correct
3. Update README.md to list all created files
4. Report all files created

Custom Business Logic in RULE.md

Parse RULE.md for custom instructions:

Pattern detection:

• "When user provides URL..." → URL handling logic
• "When user mentions [keyword]..." → Keyword-triggered workflow
• "MUST verify [condition]" → Mandatory pre-check
• "After creation, [action]" → Post-creation hook

Execute custom logic:

• Follow instructions step-by-step
• Use specified tools (WebFetch, Bash, etc.)
• Maintain specified format
• Report custom workflow execution

Error Handling

No Suitable Directory Found

• Ask user: "I couldn't find a suitable directory. Please specify where to save this content, or I can help you create a new directory."
• Offer to create new directory with RULE.md

RULE.md Missing

• Check parent directories for inheritance
• If no RULE.md in tree: ask user if should create one
• Fallback: use basic file creation with sensible defaults

Ambiguous Classification

• Present multiple options with scores
• Explain reasoning for each
• Let user choose or specify custom path

RULE.md Instructions Unclear

• Ask user for clarification
• Offer to interpret instructions and ask for confirmation
• Document unclear instructions for future improvement

File Already Exists

• Check if filename conflicts with existing file
• Offer to: append timestamp, rename, overwrite, or choose different name
• Never overwrite without confirmation

Operation Fails

• Report error clearly
• Explain what went wrong
• Suggest alternatives or fixes
• Don't leave partial state (clean up if needed)

Integration with Governance

This Skill automatically invokes the governance protocol:

Before operation:

• Locate and read RULE.md
• Validate operation is allowed
• Check README.md for context

During operation:

• Follow RULE.md specifications
• Execute any special workflows

After operation:

• Update README.md
• Update parent README.md if needed
• Verify updates successful

Examples

Example 1: Simple Note

User: "Save this note: Today I learned about transformer architecture in deep learning"

Skill workflow:

1. Analyzes content → Technical/AI topic
2. Scans directories → Finds Research/AI/, Research/DeepLearning/, Miscellaneous/
3. Reads RULE.md files → Research/AI/ purpose: "AI and machine learning research"
4. Recommends Research/AI/ (score: 95)
5. User confirms
6. Reads Research/AI/RULE.md → Files named YYYY-MM-DD-topic.md
7. Creates 2025-10-28-transformer-architecture.md
8. Updates Research/AI/README.md
9. Reports success with file location

Example 2: Web Archival

User: "readlater https://example.com/interesting-article"

Skill workflow:

1. Detects URL
2. Scans directories → Finds ReadLater/
3. Reads ReadLater/RULE.md → Purpose: "Archive web content"
   • Instructions: "Fetch URL, convert to markdown, save in Articles/YYYY/MM/"
4. Recommends ReadLater/ (score: 100, exact match)
5. User confirms (or auto-confirm for obvious match)
6. Executes RULE.md instructions:
   • WebFetch URL
   • Extracts title: "Interesting Article About AI"
   • Converts to markdown
   • Creates ReadLater/Articles/2025/10/2025-10-28_interesting-article-about-ai/
   • Saves article.md and metadata.yaml
7. Updates ReadLater/README.md and ReadLater/Articles/2025/10/README.md
8. Reports success with summary

Example 3: WorkLog Entry

User: "Update my worklog"

Skill workflow:

1. Detects worklog keyword
2. Scans directories → Finds Work/WorkLog/
3. Reads Work/WorkLog/RULE.md:
   • Purpose: "Daily work logs"
   • Structure: YYYY/QX/MM-Month/
   • MUST verify datetime first
   • Format: [specific template]
4. Recommends Work/WorkLog/ (score: 100)
5. User confirms
6. Executes RULE.md instructions:
   • Runs date → 2025-10-28
   • Parses to 2025/Q4/10-October/
   • Checks if directory exists, creates if needed
   • Checks if 2025-10-28.md exists
   • Creates/updates file with template from RULE.md
7. Updates hierarchical README.md files:
   • Work/WorkLog/2025/Q4/10-October/README.md
   • Work/WorkLog/2025/Q4/README.md
   • Work/WorkLog/README.md
8. Reports success with daily log location

Best Practices

1. Always read RULE.md completely - Don't assume, read the full file
2. Ask for confirmation on ambiguous choices - User knows their needs
3. Follow RULE.md exactly - It's the contract for directory behavior
4. Update README.md immediately - Don't batch updates
5. Report clearly - User should know exactly what happened
6. Handle errors gracefully - Don't leave broken state
7. Preserve existing structure - Don't modify unrelated files
8. Document custom workflows - If RULE.md has special instructions, note them

Notes

• This Skill is generic - it works with ANY directory structure
• Business logic comes from RULE.md, not hardcoded in Skill
• Classification is smart but always asks for user confirmation
• RULE.md format is natural language - no strict schema required
• Integration with governance agent is automatic
• Works in parallel with CLAUDE.md subagents independently