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1b8a0843ef
Adds native support for Devin CLI (Cognition, https://cli.devin.ai/) as a named cc-connect agent, alongside Claude Code / Codex / Cursor / Gemini / iFlow / Qoder / OpenCode. Users can now configure Devin with a minimal `type = "devin"` block rather than hand-rolling a generic ACP config. [[projects]] name = "my-project" [projects.agent] type = "devin" # NEW [projects.agent.options] work_dir = "/path/to/code" # command / args / display_name default to "devin" / ["acp"] / "Devin" # mode, auth_method, env (for WINDSURF_API_KEY) passed through to ACP Credentials come from the local `devin auth login` store — cc-connect never sees or forwards any token. Windsurf Enterprise users can inject WINDSURF_API_KEY via the agent env option. The new `agent/devin/` package is a thin wrapper around `agent/acp/`: Devin speaks the Agent Client Protocol over stdio via its `devin acp` subcommand, so the session/prompt, session/update, permission, and tool-call plumbing is shared. Embedding *acp.Agent and shadowing only Name() gives us identity and defaulting without duplicating transport code: type Agent struct { *acp.Agent } func (a *Agent) Name() string { return "devin" } Wiring Devin revealed two protocol features that agent/acp had left as MVP-skipped TODOs. Both are needed for `/list` and `/mode` to work in IM, so this PR fills them in as part of the Devin integration — Cursor Agent, OpenClaw, and Copilot CLI all pick up the same improvements automatically. ListSessions now spawns a short-lived `<command>` process that runs just initialize + session/list, then tears down. Capability is discovered via `agentCapabilities.sessionCapabilities.list`, and a negative result is cached on the Agent so non-supporting servers pay the spawn cost only once. Soft-degrades on JSON-RPC -32601 (method not found) and -32600 (invalid request). Measured cost against `devin acp` 2026.4.9-0: ~40 ms round trip. Agent implements core.ModeSwitcher (SetMode / GetMode / PermissionModes); the modes list is sourced from the modes block returned by session/new or session/load. GetMode precedence: the most recent explicit SetMode wins over the last server-advertised currentModeId, so `/mode plan` reports the new mode back to the user immediately rather than the cached previous one. acpSession implements core.LiveModeSwitcher via session/set_mode with client-side modeId validation against the cached availableModes. Client-side validation is mandatory because at least one ACP server (devin acp 2026.4.9-0) silently accepts unknown modeIds with an empty result — server-only validation would let typos go undetected. session/update notifications with sessionUpdate = current_mode_update are absorbed so cc-connect stays in sync when the user switches modes from another client (e.g. the Windsurf IDE). newACPSession moved from seven positional args to an acpSessionConfig struct. Private API, not a breaking change externally; the one exported consumer (cursor_integration_test.go) is updated. A sessionCallbacks interface lets running acpSession instances report handshake-derived capabilities and modes back to the parent Agent, since the engine (not the agent) owns the session lifetime. - README.md / README.zh-CN.md: Devin added to the Support Matrix and the agent count bumped from 7 to 8. - config.example.toml: dedicated Devin section placed before the generic ACP examples, with prerequisites and override notes. - web/src/pages/Projects/ProjectList.tsx: Devin added to the agent dropdown so the web admin UI surfaces it alongside other first-class agents. - Makefile: ALL_AGENTS += devin (enables selective compilation tags `no_devin` / AGENTS=devin,...). 22 new tests total (7 for agent/devin, 15 for agent/acp). All pass with -race. agent/acp wrapper tests avoid requiring `devin` in PATH by pinning `command = "true"` to satisfy the upstream exec.LookPath check while still exercising the Name() shadow and default injection. End-to-end verified against live `devin acp` 2026.4.9-0 through the cc-connect bridge: - /mode lists Devin's five modes with ▶ Code marked current - /mode plan switches and the engine reports "switched to **Plan**" - /list shows "devin Sessions (1)" (confirms Name() propagates to UI) - agent field in engine logs = "devin" (not "acp") Closes none — net-new agent support. Generated with [Devin](https://cli.devin.ai/docs) Co-authored-by: youngshook <youngshook@users.noreply.github.com> Co-authored-by: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>