Skills in Web Platforms

Skills are no longer exclusive to CLI agents. As of July 2026, the major AI platforms offer skill management directly in the browser — create, install, share and use reusable workflows without leaving the chat.

Overview

Platform	Skills in browser	Access URL	Format
ChatGPT	✅	chatgpt.com/skills	SKILL.md (open standard)
Claude	✅	claude.ai/customize/skills	SKILL.md (ZIP upload)
Manus	✅	manus.im/app#settings/skills	SKILL.md (open standard)
Gemini (Chrome)	✅	Sidebar / or chrome://skills/browse	Saved prompts
Perplexity	⚠️ Partial	Computer + Spaces	Proprietary
Copilot	❌	—	—

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ChatGPT

URL: chatgpt.com/skills

Plans: Business, Enterprise, Healthcare, Edu (personal skills). Pro/Plus for Codex use.

How to create

1. Via chat — Ask: “Build me a skill that does X”. ChatGPT generates the SKILL.md and offers an Install button.
2. Via editor — Sidebar → Plugins → Skills → Create → Create with editor
3. Via upload — Skills → Create → Upload from your computer (ZIP with SKILL.md + resources)

How to use

• Automatic: Once installed, ChatGPT uses the skill when it detects relevance
• Explicit: Mention with @skill-name in chat
• Codex: In Codex, access via Plugins → Skills in the top left corner

How to share

• Share button on the skill → direct link or publish to workspace
• Enterprise admins can install skills for the entire organization
• Skills follow the Agent Skills open standard (agentskills.io) — portable across platforms

Built-in skill

Comes with skill-creator pre-installed that helps generate other skills via conversation.

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Claude

URL: claude.ai/customize/skills

Plans: Free, Pro, Max, Team, Enterprise (all).

Prerequisites

1. Enable Code execution and file creation in Settings → Capabilities
2. For Team/Enterprise: Owner must enable in Organization settings → Skills

How to create

1. Upload ZIP — Customize → Skills → “+” → “Create skill” → Upload a skill
2. The ZIP must contain the skill folder with SKILL.md + scripts/resources
3. Cannot create skills via chat (unlike ChatGPT)

How to use

• Automatic: Claude uses skills when it detects relevance in conversation
• Explicit: Ask “Use my skill X to do Y” or type /skill-name
• Microsoft 365: Skills work in Excel, Word, PowerPoint and Outlook add-ins

Built-in skills (Anthropic)

Included without needing to install:

• Enhanced Excel spreadsheet creation
• Professional Word document creation
• PowerPoint presentation generation
• PDF creation and processing

How to share

• Share button → specific people or entire organization
• Team/Enterprise: Directory with Skills + Connectors + Plugins in one place
• Owners can provision skills for all members automatically

Security

• Skills are scanned before becoming available
• Some may be marked Needs Review or Blocked
• Always review skills from external sources before enabling

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Manus (Meta)

URL: manus.im/app#settings/skills

Plans: Free and Team.

How to create

1. Via conversation — Complete a task → say “Package this workflow as a Skill” → Manus auto-generates SKILL.md
2. External import — One-click import from URL or SKILL.md upload

How to use

• Slash command: Type /SKILL_NAME in chat for explicit triggering
• Automatic: Manus recognizes relevant skills by metadata

Differentiator: Real sandbox execution

Manus doesn’t just guide — it executes Python/Bash scripts inside an isolated Ubuntu VM:

• Browser automation + code execution + file operations integrated
• Reads SKILL.md, executes bundled scripts, orchestrates complete workflows
• Results delivered ready (not instructions to follow)

How to share

• Team Skill Library (Team plan): Publish verified skills for the entire team
• Portable skills via Agent Skills open standard

Skills vs MCP in Manus

	Skills	MCP
Goal	Encapsulate workflows	Connect data sources
Function	Playbook — how to do it	Pipeline — where to get it
Execution	Direct scripts	Standardized API calls

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Gemini (Chrome)

URL: Gemini sidebar in Chrome → / → Skills, or chrome://skills/browse

Plans: Free — any Chrome user logged in. No Google AI Pro needed.

Requirements: Chrome desktop (Mac/Win/ChromeOS), English (US) language.

How to create

1. Open Gemini sidebar in Chrome (the “G” icon in the top-right corner)
2. Type a prompt that works well
3. After response, click “Save as Skill”
4. Name it + add emoji → Saved and synced across all Chrome desktops

How to use

• Open sidebar → type / → skills list appears → select one
• Or click the + button in the Gemini interface
• Multi-tab: When triggering a skill, select multiple tabs to process together

Pre-built library

50+ ready-to-use skills at chrome://skills/browse organized by:

• Learning — Summarize articles, explain concepts
• Research — Cross-reference, fact-check
• Shopping — Compare products across tabs
• Writing — Rewrite in different tones
• Productivity — Summarize documents, extract action items

Differentiator: Multi-tab execution

No other platform lets you run 1 skill across multiple tabs simultaneously. E.g.: 5 product pages open → 1 comparison skill → consolidated result.

Manage

• Type / → compass icon to edit/delete
• Or access chrome://skills/browse directly in the address bar

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Perplexity

URL: Inside Perplexity Computer (Max/Enterprise) + Spaces

Model: Different from other platforms — does not use SKILL.md.

3-layer architecture

Layer	Function
Connectors	Integrations with 100+ tools (Gmail, Notion, GitHub, Slack, etc.)
Skills	Capabilities within each connector (read emails, send, label, etc.)
Tasks	Automated workflows with trigger → actions → output → error handling

How to use

• Skills activate automatically based on your query
• Access via skills page in Computer
• Spaces: Custom instructions + files = works like a “context skill”
• Connectors configured in Settings

Limitations

• Does not use SKILL.md format (not portable)
• Skills are capabilities within connectors, not markdown files
• Closer to “Zapier with reasoning” than portable skills

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Detailed Comparison

Feature	ChatGPT	Claude	Manus	Gemini	Perplexity
Create via chat	✅	❌	✅	✅	❌
Upload SKILL.md	✅	✅ (ZIP)	✅	❌	❌
Code execution	❌ Guidance	✅ Sandbox	✅ Ubuntu VM	❌	✅ Computer
Trigger	Auto or @skill	Auto or explicit	/NAME	/ + select	Auto by query
Multi-tab	❌	❌	❌	✅	❌
Share	Workspace	Share → org	Team Library	Chrome sync	Shared Spaces
Portable (SKILL.md)	✅	✅	✅	❌	❌
Free tier	❌ (Business+)	✅ (Free+)	✅	✅	❌ (Max)

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Cross-platform portability

The SKILL.md format (agentskills.io) is an open standard adopted by ~40 clients. This means:

• A skill written for Claude can be installed on ChatGPT and Manus without modification
• npx skills add (Vercel’s skills.sh) installs across 20+ different agents
• Gemini and Perplexity do not participate in this portability ecosystem

Practical flow

Create skill (SKILL.md + scripts)
       │
       ├─→ Upload ZIP to Claude
       ├─→ Upload to ChatGPT
       ├─→ One-click import to Manus
       └─→ npx skills add (any CLI agent)

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References

• Skills in ChatGPT — OpenAI Help Center
• Using Skills — OpenAI Academy
• Use skills in Claude — Anthropic Support
• Build custom AI workflows — Manus
• Gemini Skills in Chrome — Google Blog
• Agent Skills Open Standard — agentskills.io