GitHub Copilot Agents: No Credits?

Key insights

• Copilot Credits: GitHub Copilot Harness agents consume Copilot Credits for LLM-powered tasks like building, previewing, testing, evaluating, and runtime execution.
  Credits can be used during development, so a Microsoft 365 Copilot license does not automatically cover harness usage.
• No Credits Behavior: If an environment has no allocated credits and no pay-as-you-go billing, harness experiences that require credits will not run or will fail to operate properly.
  This applies to developer, trial, and production environments unless credits are in place.
• Billing Starts During Development: Microsoft begins charging credits as soon as someone builds, previews, or tests an agent—not only after publication.
  There is no switch to disable the GitHub Copilot Harness, so cost control must come from environment-level settings and governance.
• Non‑billed Configuration: Manual, non-LLM configuration work in the Build and Monitor tabs does not consume Copilot Credits.
  LLM-driven authoring, testing, and runtime use do consume credits and should be managed separately.
• Operational Controls: Monitor the Manage Agents reports for billed and unbilled usage, set environment budgets, and enable pay-as-you-go where appropriate.
  Limit unexpected spend by enforcing credit allocations, usage alerts, and access policies for makers.
• Risk and Action Plan: The main risk is unexpected credit consumption in non-production environments, since usage-based billing began for developer and trial environments on September 1, 2026.
  Create a simple cost model, train teams on when credits are consumed, and enforce governance to avoid surprises.

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