chore(codespaces): add devcontainer with Claude Code + auto sign-in - #196
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Adds a devcontainer that installs the Claude Code CLI (via the anthropics devcontainer feature) and the anthropic.claude-code VS Code extension, and runs npm ci on create. Sign-in is provided at runtime via the CLAUDE_CODE_OAUTH_TOKEN Codespaces secret, so new/prebuilt Codespaces are authenticated without an interactive prompt. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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What
Adds
.devcontainer/devcontainer.jsonso Codespaces (and prebuilds) come up ready to use with Claude Code:mcr.microsoft.com/devcontainers/universal:2image (Node 24, npm, git, and the Codespaces GPG commit-signing wrapper).ghcr.io/anthropics/devcontainer-features/claude-codesoclaudeis onPATHin the terminal.anthropic.claude-codeVS Code extension automatically.npm cion create so the workspace is ready to build/test.Auto sign-in
Authentication is provided at runtime by a
CLAUDE_CODE_OAUTH_TOKENCodespaces secret (repo → Settings → Secrets and variables → Codespaces). Both the CLI and the extension read it automatically, so new/prebuilt Codespaces are signed in with no interactive prompt. The token is intentionally not committed or baked into the prebuilt image.Follow-up (manual, one-time)
CLAUDE_CODE_OAUTH_TOKENCodespaces secret (generated viaclaude setup-token).main(Settings → Codespaces → Set up prebuild).🤖 Generated with Claude Code