[meitar]

Summary

This PR adds native usage tracking, documentation, and panel asset marks for Antigravity (agy) in the Omarchy AI Agents Panel and top bar widget.

Context & Motivation:

The legacy gemini-cli is now deprecated for personal / individual Google accounts with the following message from the upstream client:

Failed to sign in. Message: This client is no longer supported for Gemini Code Assist for individuals.
To continue using Gemini, please migrate to the Antigravity suite of products: https://antigravity.google

agy (Antigravity CLI) is the modern official client. This PR provides the native usage collection and agent panel integration for agy.

Changes:

• bin/omarchy-agent-usage-agy: Added collector script that extracts session counts, prompt statistics, and weekly activity history from ~/.gemini/antigravity-cli/ (conversation_summaries.db and history.jsonl) following the schemaVersion: 1 agent contract.
• Panel Marks: Added shell/plugins/agents/assets/agy.svg and agy-light.svg for dark and light theme rendering in the agents panel.
• Documentation:
  • Updated shell/plugins/agents/README.md to document the agy collector.
  • Updated manual/17-ai.md noting Antigravity panel integration and the deprecation of legacy gemini-cli for personal account licenses.

Testing:

• Verified omarchy-agent-usage-agy outputs valid JSON matching the panel schema.
• Verified live discovery and UI presentation in the Quickshell agents panel.

[Copilot]

Pull request overview

Adds Antigravity usage tracking and themed panel assets.

Changes:

• Adds an agy usage collector.
• Adds dark/light Antigravity icons.
• Documents the collector’s data sources.

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Reviewed changes

Copilot reviewed 2 out of 5 changed files in this pull request and generated no comments.

File	Description
bin/omarchy-agent-usage-agy	Collects Antigravity session and history statistics.
shell/plugins/agents/assets/agy.svg	Adds the dark-surface mark.
shell/plugins/agents/assets/agy-light.svg	Adds the light-surface mark.
shell/plugins/agents/README.md	Documents Antigravity’s local sources.

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[bjarneo]

Automated duplication check: this pull request looks similar to #8479, which covers the same Antigravity usage collector. I keep that one open and close this one to consolidate review.

If you feel this is the wrong decision, please open the PR again with a note on the difference.