Usage Tracking, Skills Polish & Reliability

See your token usage at a glance with the new usage badge, create and share skills from a community library, and benefit from stronger billing enforcement and expanded test coverage.

• ›Usage quota badge -- see your token consumption and budget in the nav bar, with color warnings at 80% and 95%
• ›Smarter billing enforcement -- budget exhaustion now returns a clear message instead of a generic rate limit error
• ›Community Skills library -- browse and install skills published by other users directly from the Skills tab
• ›Skill creation cards -- when agents create skills via chat, a visual card now appears inline in the conversation
• ›Skill input validation -- skill names and prompts are now validated for minimum length to ensure quality
• ›Expanded test coverage -- new automated tests for the chat API, orchestrator learning engine, and skill creation tool