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Invoking a Skill

Skills are invoked inline in any chat using the @ trigger:
1

Type @ in the prompt bar

In any ZeroTwo chat — including project chats — type @ in the prompt input. A skill picker dropdown appears immediately.
2

Select or type the skill name

Continue typing to filter skills by name, or scroll the picker and click to select. The skill name autocompletes into the prompt.
3

Add your content or instructions

After the skill name, type or paste the content you want the skill to act on. Some skills need content to work (like @summarize [text]); others can be invoked with just additional instructions.
4

Send

Press Enter or click Send. The skill processes your input and returns the output directly in the chat.

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Examples

@summarize Here is a long article I need condensed: [paste article text]

@translate This needs to be in French: The quarterly results exceeded expectations.

@explain-code
def fibonacci(n):
    if n <= 1:
        return n
    return fibonacci(n-1) + fibonacci(n-2)

@grammar-check Please review this paragraph: [paste text]

@extract-action-items Here are the meeting notes from today's standup: [paste notes]

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Installing Skills

Official Library skills must be installed before they appear in the @ picker:
  1. Go to Settings → Skills → Official Library
  2. Browse or search for skills by name or category
  3. Click Install next to a skill
  4. The skill is immediately available in all your chats via @skill-name
Custom skills you create are automatically available after saving — no installation needed. GitHub-imported skills are available immediately after import.

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Where Skills Work

Skills work in any chat, including:
  • Regular chats
  • Project chats (alongside project instructions)
  • Chats with Custom Agents
The @ picker shows all your installed and custom skills regardless of where you’re chatting.

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Skill Output

Skill output appears directly in the chat as an AI response. The output format depends on how the skill is configured — some return bullet points, some return structured sections, some return plain rewrites. Each skill can have its own base model and enabled tools. A code review skill might use a coding-optimized model; a research skill might have web search enabled. The skill’s configuration determines its capabilities, not the chat’s default settings.
Install a small set of high-value skills upfront — @summarize, @explain-code, @translate, and @grammar-check cover a large portion of common use cases and are available in the Official Library.

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Managing Your Skills

View and manage all your skills at Settings → Skills:
  • Installed tab — shows Official Library skills you’ve installed
  • Custom tab — shows skills you’ve created
  • GitHub tab — shows skills imported from GitHub repos
To uninstall an Official Library skill: Settings → Skills → Installed → click Remove next to the skill.