Wire MCP server configs from workflow TOML into agent sessions so
MCP tools are available to agent stages during workflow runs.
Changes:
- run_config.rs: add mcp_servers HashMap to WorkflowRunConfig
- backend.rs: AgentApiBackend.with_mcp_servers() passes configs to SessionConfig
- run.rs: extract mcp_servers from RunConfig and pass to backend
- demo/mod.rs: add default mcp_servers field to struct literals
New workflow: arc/workflows/playwright-demo/
- Runs on Daytona with daytona-medium snapshot
- Configures Playwright MCP as a sandbox transport (port 3100)
- Agent browses Hacker News, takes screenshots at each step
- asset_globs captures screenshots/** into logs directory
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Rename directory and adopt workflow.{toml,dot} convention so
`arc run implement` resolves via project config.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>