feat: multi-backend devcontainer-mcp with auth broker#4
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aniongithub merged 7 commits intomainfrom Apr 22, 2026
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April 21, 2026 15:24
…aces backends - Rename devpod-mcp → devcontainer-mcp across all crates, CI, docs, install script - Add shared CliOutput type and run_cli() helper in cli.rs - Add devcontainer CLI backend (up/exec/build/read-config + bollard stop/remove) - Add GitHub Codespaces backend (create/list/ssh/stop/delete/view/ports) - Add 14 new MCP tools (7 devcontainer_* + 7 codespaces_*), 29 total - Update install.sh with --backends flag for selective backend setup - Update README.md and SKILL.md for all three backends
…, opens browser When a codespaces_* tool fails due to a missing OAuth scope, automatically: 1. Run gh auth refresh --clipboard to copy the device code 2. Open the browser to github.com/login/device 3. Return a structured JSON response telling the agent to ask the user to approve
Uses the agency_devcontainer pattern: - initialize.sh runs on host, grabs gh token, writes .devcontainer/gh.env - runArgs --env-file injects GH_TOKEN into container - gh.env is gitignored (contains secrets) - Also adds sshd + gh CLI features for Codespaces SSH support
Auth broker design: MCP server manages credentials, agent uses opaque handles. - auth/mod.rs: AuthProvider trait, handle resolution, provider registry - auth/github.rs: gh auth status/login/token integration - cli.rs: run_cli_with_env() for subprocess env overrides - codespaces.rs: all functions take auth env, auto-auth hack removed - tools.rs: 3 new auth tools (auth_status, auth_login, auth_select) + all codespaces_* tools now require auth handle param - devcontainer.json: removed initializeCommand/env-file hacks - tasks.json: fix cargo task type to shell Tested end-to-end: auth_status → codespaces_create → codespaces_list → codespaces_delete
- SKILL.md: add auth tools, auth workflow, machine type guidance - README.md: add auth tools section, update prerequisites and install - install.sh: simplify to just binary + SKILL.md, detect backends at runtime
- auth/azure.rs: az account list/login --use-device-code - auth/aws.rs: aws sts get-caller-identity, sso login, profile switching - auth/gcloud.rs: gcloud auth list/login --no-browser - auth/kubernetes.rs: kubectl config get-contexts/use-context - cli.rs: add Az, Aws, Gcloud, Kubectl binary variants - error.rs: add AzCliNotFound, AwsCliNotFound, GcloudCliNotFound, KubectlNotFound
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Summary
Renames
devpod-mcp→devcontainer-mcpand adds two new backends (devcontainer CLI, GitHub Codespaces) alongside the existing DevPod backend, plus an auth broker system. 32 MCP tools total.3 backends
devpod_*)devcontainer_*)codespaces_*)authparam)Auth broker (3 new tools)
auth_status— list accounts/handles for a providerauth_login— initiate login flow (opens browser, copies device code)auth_select— verify a handle is still validAgent uses opaque handles like
"github-aniongithub"— never sees raw tokens.Tested end-to-end
auth_status→codespaces_create→codespaces_list→codespaces_delete✅All CI checks pass (fmt, check, test, clippy) ✅