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Skills are specialized workflows that give Invariant domain expertise. Mention a skill to activate it.

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How to Use

@pr-review review PR #42
@standup generate my standup
@meeting-prep brief me on the product review
Or select a skill from the skill picker in the UI.

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Engineering

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PR Review

Analyzes code changes with security, performance, and testing checklists. Requires: GitHub 
@pr-review review my latest PR
@pr-review check PR #123 for security issues
Output includes:
  • Security issues (hardcoded secrets, injection risks)
  • Performance problems (N+1 queries, missing indexes)
  • Test coverage gaps
  • Code quality feedback

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Daily Standup

Generates standup-ready updates from GitHub and Linear activity. Works with: GitHub, Linear 
@standup generate my standup
@standup what did I do yesterday?
Output format:
  • Yesterday: Commits, PRs, issues
  • Today: Open work
  • Blockers: Issues needing attention

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Release Notes

Creates changelogs from merged PRs and closed issues. Requires: GitHub 
@release-notes for v1.2.0
@release-notes what changed since last week?
Output format:
  • Added (new features)
  • Changed (modifications)
  • Fixed (bug fixes)
  • Breaking changes

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Productivity

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Email Summarizer

Summarizes unread emails and extracts action items. Requires: Gmail 
@email summarize my inbox
@email what important emails do I have?
Output includes:
  • High/medium/low priority emails
  • One-line summaries
  • Action items extracted

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Meeting Prep

Gathers context from emails, issues, and notes for any meeting. Works with: Gmail, Linear, GitHub, Notion 
@meeting-prep for the 1:1 with Sarah
@meeting-prep sprint planning brief
Output includes:
  • Recent context with participants
  • Key topics to discuss
  • Open questions
  • Your action items

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Weekly Founder Update

Generates investor/advisor updates from your week’s activity. Requires: GitHub 
@founder-update generate weekly update
@founder-update what did I ship this week?
Output format:
  • Shipped (with impact)
  • Metrics
  • Meetings
  • Challenges
  • Next week
Saves 2+ hours every Friday.

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All Skills

SkillWhat it doesRequires
@pr-reviewCode review with checklistsGitHub
@standupDaily standup generationGitHub
@release-notesChangelog from PRsGitHub
@emailInbox summary + action itemsGmail
@meeting-prepContext gathering for meetingsAny
@founder-updateWeekly investor updatesGitHub

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Custom Skills

Coming soon: Create skills with your own workflows and instructions.