Claude Code is Anthropic's full implementation agent, distributed under Anthropic's commercial terms with closed source. Its terminal workflow supports code exploration, multi-file edits, commands, tests, Git operations, pull requests, a plan mode that proposes changes before making them, and an optional OS-enforced sandbox for shell commands. It runs Claude models on a Claude Pro, Max, Ultra, Team, or Enterprise plan, an Anthropic API key, or Amazon Bedrock, Google Cloud, and Microsoft Foundry. Direct use gives you the shortest feedback loop while you investigate a bug, shape a change, or guide each decision. Inside GitHub, the Claude Code GitHub Action responds to @claude mentions in issue and PR comments, implements changes, and pushes commits once you install the Claude GitHub App and add a workflow file.
Claude Code inside ProPR implements on the same Claude plan or API key. You approve the plan, Claude works in an isolated workspace, and ProPR opens the pull request with the full run attached.
From there the pull request drives the work. A plain GitHub comment becomes the next commit on the same branch, with no @claude mention, Claude GitHub App, or workflow file. Claude also runs goals inside ProPR with live steering, and a Codex or Antigravity CLI run can review or follow up on the PR Claude opened.