arcana-export-zip

name	arcana-export-zip
description	Export a Claude Code skill as a ZIP file for upload to claude.ai web interface. Analyzes the skill, bundles dependencies, transforms frontmatter, and creates a self-contained ZIP. Trigger phrases: "export for claude.ai", "create ZIP", "export skill", "download skill".

Arcana Export ZIP: Export for claude.ai

Export a Claude Code skill as a ZIP file for upload to claude.ai.

Path Convention

{PLUGIN_ROOT} = This plugin's root directory (where plugin.json lives)

What This Does

1. Analyzes the skill to understand what it does
2. Identifies all files the skill needs
3. Transforms frontmatter (strips CC-only fields)
4. Validates for API compatibility
5. Creates a self-contained ZIP

Workflow

Step 1: Analyze the Skill

Read {PLUGIN_ROOT}/lib/patterns/skill-analysis.md for guidance.

1. Read the SKILL.md - Understand what it does
2. Explore the skill directory - Find supporting files
3. Trace dependencies - Find referenced files (see {PLUGIN_ROOT}/lib/patterns/dependency-resolution.md)

Build a file manifest of everything to bundle.

Step 2: Transform Frontmatter

Read {PLUGIN_ROOT}/lib/patterns/frontmatter-transform.md for guidance.

1. Extract YAML frontmatter from SKILL.md
2. Remove Claude Code-only fields:
   • allowed-tools
   • hooks
   • context
   • agent
   • model
   • user-invocable
   • disable-model-invocation
3. Keep: name, description, version

Step 3: Validate

Read {PLUGIN_ROOT}/lib/references/validation-rules.md for rules.

Check:

• Name: ≤64 chars, lowercase/numbers/hyphens, no "claude"/"anthropic"
• Description: 1-1024 chars, non-empty, no XML tags

If validation fails:

• Report the specific issue
• Suggest a fix
• Ask user how to proceed (don't auto-fix)

Step 4: Prepare Files

1. Create a temp directory
2. Write the transformed SKILL.md
3. Copy all dependency files, preserving relative paths

Step 5: Create ZIP

Use the zip tool with your file manifest:

python3 "{PLUGIN_ROOT}/lib/tools/zip_skill.py" \
  --name {skill-name} \
  --output ~/Downloads/{skill-name}.zip \
  --base-path {temp-directory} \
  {file1} {file2} {file3} ...

Step 6: Report Result

Export complete!

Skill: my-skill
Output: ~/Downloads/my-skill.zip
Files: 5 files bundled

To upload to claude.ai:
1. Go to claude.ai
2. Click Settings → Features → Skills
3. Upload ~/Downloads/my-skill.zip

Example Session

User: Export the hiivmind-corpus-atproto skill

Claude:

1. Reading skill at /path/to/hiivmind-corpus-atproto/SKILL.md...
2. This skill provides documentation lookup for AT Protocol.
3. Found dependencies:
   • data/index.md - Documentation index
   • references/overview.md - Overview document
4. Transforming frontmatter (stripping: allowed-tools, model)...
5. Validation passed: name OK, description OK
6. Creating ZIP with 4 files...

python3 lib/tools/zip_skill.py \
  --name hiivmind-corpus-atproto \
  --output ~/Downloads/hiivmind-corpus-atproto.zip \
  --base-path /tmp/transformed \
  SKILL.md data/index.md references/overview.md

Export complete!

Error Handling

Error	Resolution
SKILL.md not found	Check path, ask user to specify
Name validation failed	Suggest alternative name, ask user
Missing dependency	Warn and continue, or ask if critical
ZIP creation failed	Check disk space, permissions

Related Patterns

• {PLUGIN_ROOT}/lib/patterns/skill-analysis.md - How to analyze skills
• {PLUGIN_ROOT}/lib/patterns/dependency-resolution.md - How to find dependencies
• {PLUGIN_ROOT}/lib/patterns/frontmatter-transform.md - How to transform
• {PLUGIN_ROOT}/lib/patterns/validation.md - How to validate