GitHub Copilot Coding Agent Integration

tokenjuice install copilot-agent writes a repository-level Copilot hook to .github/hooks/tokenjuice-agent.json.

The hook runs on postToolUse events and compacts successful bash tool results. It runs:

tokenjuice copilot-agent-post-tool-use

When Copilot returns noisy successful shell output, tokenjuice replaces the tool result with compacted output. Failed, denied, non-bash, malformed, and explicit tokenjuice wrap --raw -- ... invocations pass through unchanged.

Cloud Agent Caveat

GitHub Copilot cloud agent loads hook configuration from .github/hooks/*.json inside the cloned repository. The cloud sandbox is ephemeral and only honors bash or command entries, so this integration writes both fields.

The hook command still needs tokenjuice to be available in PATH before the hook runs. For repositories using Copilot cloud agent, install tokenjuice as part of the agent environment setup or use a project-local binary that the hook command can resolve.

Commands

tokenjuice install copilot-agent
tokenjuice doctor copilot-agent
tokenjuice uninstall copilot-agent

Use --local when validating a checkout build:

tokenjuice install copilot-agent --local
tokenjuice doctor copilot-agent --local