Fu-Jie_openwebui-extensions/docs/plugins/tools/openwebui-skills-manager.md

🧰 OpenWebUI Skills Manager Tool

By Fu-Jie · v0.3.0	⭐ Star this repo

A standalone OpenWebUI Tool plugin to manage native Workspace > Skills for any model.

What's New

• 🤖 Automatic Repo Root Discovery: Install any GitHub repo by providing just the root URL (e.g., https://github.com/owner/repo). System auto-converts to discovery mode and installs all skills.
• 🔄 Batch Deduplication: Automatically removes duplicate URLs from batch installations and detects duplicate skill names.
• Added GitHub skills-directory auto-discovery for install_skill (e.g., .../tree/main/skills) to install all child skills in one request.
• Fixed language detection with robust frontend-first fallback (__event_call__ + timeout), request header fallback, and profile fallback.

Key Features

• 🌐 Model-agnostic: Can be enabled for any model that supports OpenWebUI Tools.
• 🛠️ Simple Skill Management: Directly manage OpenWebUI skill records.
• 🔐 User-scoped Safety: Operates on current user's accessible skills.
• 📡 Friendly Status Feedback: Emits status bubbles for each operation.
• 🔍 Auto-Discovery: Automatically discovers and installs all skills from GitHub repository trees.
• ⚙️ Smart Deduplication: Removes duplicate URLs and detects conflicting skill names during batch installation.

How to Use

1. Open OpenWebUI and go to Workspace > Tools.
2. Install OpenWebUI Skills Manager Tool from the official marketplace.
3. Enable this tool for your model/chat.
4. Ask the model to call tool operations, for example:
   • "List my skills"
   • "Show skill named docs-writer"
   • "Create a skill named meeting-notes with content ..."
   • "Update skill ..."
   • "Delete skill ..."

Manual Installation (Alternative)

• Create a new Tool and paste openwebui_skills_manager.py.

Example: Install Skills

This tool can fetch and install skills directly from URLs (supporting GitHub repo roots, tree/blob, raw markdown, and .zip/.tar archives).

Auto-discover all skills from a GitHub repo

• "Install skills from https://github.com/nicobailon/visual-explainer" ← Auto-discovers all subdirectories
• "Install all skills from https://github.com/anthropics/skills" ← Installs entire skills directory

Install a single skill from GitHub

• "Install skill from https://github.com/anthropics/skills/tree/main/skills/xlsx"
• "Install skill from https://github.com/Fu-Jie/openwebui-extensions/blob/main/.agent/skills/test-copilot-pipe/SKILL.md"

Batch install multiple skills

• "Install these skills: ['https://github.com/anthropics/skills/tree/main/skills/xlsx', 'https://github.com/anthropics/skills/tree/main/skills/docx']"

Tip

: For GitHub, the tool automatically resolves directory (tree) URLs by looking for SKILL.md.

Installation Logic

URL Type Recognition & Processing

The install_skill method automatically detects and handles different URL formats with the following logic:

1. GitHub Repository Root (Auto-Discovery)

Format: https://github.com/owner/repo or https://github.com/owner/repo/

Processing:

1. Detected via regex: ^https://github\.com/([^/]+)/([^/]+)/?$
2. Automatically converted to: https://github.com/owner/repo/tree/main
3. API queries all subdirectories at /repos/{owner}/{repo}/contents?ref=main
4. For each subdirectory, creates skill URLs
5. Attempts to fetch SKILL.md from each directory
6. All discovered skills installed in batch mode

Example Flow:

Input:  https://github.com/nicobailon/visual-explainer
        ↓ [Detect: repo root]
        ↓ [Convert: add /tree/main]
        ↓ [Query: GitHub API for subdirs]
Discover: skill1, skill2, skill3, ...
        ↓ [Batch mode]
Install: All skills found

2. GitHub Tree (Directory) URL (Auto-Discovery)

Format: https://github.com/owner/repo/tree/branch/path/to/directory

Processing:

1. Detected via regex: /tree/ in URL
2. API queries directory contents: /repos/{owner}/{repo}/contents/path?ref=branch
3. Filters for subdirectories (skips .hidden dirs)
4. For each subdirectory, attempts to fetch SKILL.md
5. All discovered skills installed in batch mode

Example:

Input:  https://github.com/anthropics/skills/tree/main/skills
        ↓ [Query: /repos/anthropics/skills/contents/skills?ref=main]
Discover: xlsx, docx, pptx, markdown, ...
Install: All 12 skills in batch mode

3. GitHub Blob (File) URL (Single Install)

Format: https://github.com/owner/repo/blob/branch/path/to/SKILL.md

Processing:

1. Detected via pattern: /blob/ in URL
2. Converted to raw URL: https://raw.githubusercontent.com/owner/repo/branch/path/to/SKILL.md
3. Content fetched and parsed as single skill
4. Installed in single mode

Example:

Input:  https://github.com/user/repo/blob/main/SKILL.md
        ↓ [Convert: /blob/ → raw.githubusercontent.com]
        ↓ [Fetch: raw markdown content]
Parse:  Skill name, description, content
Install: Single skill

4. Raw GitHub URL (Single Install)

Format: https://raw.githubusercontent.com/owner/repo/branch/path/to/SKILL.md

Processing:

1. Direct download from raw content endpoint
2. Content parsed as markdown with frontmatter
3. Skill metadata extracted (name, description from frontmatter)
4. Installed in single mode

Example:

Input:  https://raw.githubusercontent.com/Fu-Jie/openwebui-extensions/main/SKILL.md
        ↓ [Fetch: raw content directly]
Parse:  Extract metadata
Install: Single skill

5. Archive Files (Single Install)

Format: https://example.com/skill.zip or .tar, .tar.gz, .tgz

Processing:

1. Detected via file extension: .zip, .tar, .tar.gz, .tgz
2. Downloaded and extracted safely:
   • Validates member paths (prevents path traversal attacks)
   • Extracts to temporary directory
3. Searches for SKILL.md in archive root
4. Content parsed and installed in single mode

Example:

Input:  https://github.com/user/repo/releases/download/v1.0/my-skill.zip
        ↓ [Download: zip archive]
        ↓ [Extract safely: validate paths]
        ↓ [Search: SKILL.md]
Parse:  Extract metadata
Install: Single skill

Batch Mode vs Single Mode

Mode	Triggered By	Behavior	Result
Batch	Repo root or tree URL	All subdirectories auto-discovered	List of { succeeded, failed, results }
Single	Blob, raw, or archive URL	Direct content fetch and parse	{ success, id, name, ... }
Batch	List of URLs	Each URL processed individually	List of results

Deduplication During Batch Install

When multiple URLs are provided in batch mode:

1. URL Deduplication: Removes duplicate URLs (preserves order)
2. Name Collision Detection: Tracks installed skill names
   • If same name appears multiple times → warning notification
   • Action depends on ALLOW_OVERWRITE_ON_CREATE valve

Example:

Input URLs: [url1, url1, url2, url2, url3]
           ↓ [Deduplicate]
Unique:    [url1, url2, url3]
Process:   3 URLs
Output:    "Removed 2 duplicate URL(s)"

Skill Name Resolution

During parsing, skill names are resolved in this order:

1. User-provided name (if specified in name parameter)
2. Frontmatter metadata (from --- block at file start)
3. Markdown h1 heading (first # Title found)
4. Extracted directory/file name (from URL path)
5. Fallback name: "installed-skill" (last resort)

Example:

Markdown document structure:
───────────────────────────
---
title: "My Custom Skill"
description: "Does something useful"
---

# Alternative Title

Content here...
───────────────────────────

Resolution order:
1. Check frontmatter: title = "My Custom Skill" ✓ Use this
2. (Skip other options)

Result: Skill created as "My Custom Skill"

Safety & Security

All installations enforce:

• ✅ Domain Whitelist (TRUSTED_DOMAINS): Only github.com, huggingface.co, githubusercontent.com allowed
• ✅ Scheme Validation: Only http/https URLs accepted
• ✅ Path Traversal Prevention: Archives validated before extraction
• ✅ User Scope: Operations isolated per user_id
• ✅ Timeout Protection: Configurable timeout (default 12s)

Error Handling

Error Case	Handling
Unsupported scheme (ftp://, file://)	Blocked at validation
Untrusted domain	Rejected (domain not in whitelist)
URL fetch timeout	Timeout error with retry suggestion
Invalid archive	Error on extraction attempt
No SKILL.md found	Error per subdirectory (batch continues)
Duplicate skill name	Warning notification (depends on valve)
Missing skill name	Error (name is required)

Configuration (Valves)

Parameter	Default	Description
SHOW_STATUS	True	Show operation status updates in OpenWebUI status bar.
ALLOW_OVERWRITE_ON_CREATE	False	Allow create_skill/install_skill to overwrite same-name skill by default.
INSTALL_FETCH_TIMEOUT	12.0	URL fetch timeout in seconds for skill installation.
TRUSTED_DOMAINS	github.com,huggingface.co,githubusercontent.com	Comma-separated list of primary trusted domains for downloads (always enforced). Subdomains automatically allowed (e.g., github.com allows api.github.com). See Domain Whitelist Guide.

Supported Tool Methods

Method	Purpose
list_skills	List current user's skills.
show_skill	Show one skill by skill_id or name.
install_skill	Install skill from URL into OpenWebUI native skills.
create_skill	Create a new skill (or overwrite when allowed).
update_skill	Modify an existing skill by id or name. Update any combination of: new_name (rename), description, content, or is_active (enable/disable). Validates name uniqueness.
delete_skill	Delete a skill by skill_id or name.

Support

If this plugin has been useful, a star on OpenWebUI Extensions is a big motivation for me. Thank you for the support.

Others

• This tool manages OpenWebUI native skill records and supports direct URL installation.
• For advanced orchestration, combine with other Pipe/Tool workflows.

Changelog

See full history in the GitHub repository releases and commits.