Two bugs caught by the live end-to-end test:
1. Tool dispatch mismatch.
Gemini tool name "dev_server_list" runs through executeMcpTool's
_-to-. converter (toolName.replace(/_/g, '.')) and arrives as
"dev.server.list". The dispatcher only had cases for "dev_server.list",
so all four dev_server.* tools 404'd as "Unknown tool".
The AI gracefully fell back to shell.exec + nohup, so Express still
ran — but the dev_servers table never got populated and the preview
URL machinery was bypassed. Add aliases for both underscore and
fully-dotted forms.
2. State machine never transitioned.
ensureDevContainer wrote state='provisioning'; nothing ever flipped
it to 'running'. As a result the idle-sweep (which filters by
state='running') never saw a candidate to suspend.
Use the first successful exec as the authoritative liveness signal:
touchActivity() now also flips provisioning|suspended → running and
clears suspended_at.
Surfaced by the live trace: AI tried dev_server_list, got 404, fell
back to manually grepping the process table.
Made-with: Cursor
Completes the rest of the Path B tool surface:
- dev_server.{start,stop,list,logs}: nohup processes inside the dev
container, track PID/port/preview-url in fs_dev_servers. Each gets
a randomized preview subdomain (preview.vibnai.com base; Traefik
wildcard wiring is staged in /vibn-dev/PREVIEWS.md but the Coolify
compose hot-update step is deferred — see file for the recommended
pre-allocated-port-range approach).
- ship: git init (if needed) -> add/commit/push to the project's
Gitea repo via the workspace bot PAT, then triggers a Coolify
production deploy if the project is linked to one. Returns push
output + deployment_uuid.
- /api/admin/path-b/autosave [POST { projectId | sweep:true }]:
force-pushes /workspace to vibn-autosave/main in Gitea. Throttled
to once per 5 min per project. Records every push in fs_dev_autosaves
for audit. Treat Gitea as canonical, container disk as ephemeral.
- /api/admin/path-b/idle-sweep [POST?minutes=30]: suspends every
running dev container whose last_active_at is older than `minutes`.
Wire to a 5-min cron. Idempotent.
- Compose template hardened: pull_policy: never (use locally-built
image, no registry round-trip) + per-project bridge network
(vibn-dev-net-<slug>) so dev containers can't reach internal Vibn
services.
- vibn-dev/setup-on-coolify.sh: one-shot script to build vibn-dev:latest
on the Coolify host. Run before first chat session uses Path B.
- vibn-tools.ts: dev_server_{start,stop,list,logs} + ship Gemini tool
defs added. Smoke test passes — 68 tool definitions accepted.
- MCP version 2.5.0 -> 2.6.0 so /api/mcp tells us when the new build
is live.
Plan doc updated to reflect what shipped vs what's still manual
(DNS wildcard, Traefik cert, build-on-host script run, gitea_file_*
hard-remove deferred to allow A/B).
Made-with: Cursor
Kicks off Path B (AI_PATH_B_EXECUTION_PLAN.md): each Vibn project gets
its own vibn-dev Coolify service that the AI drives directly via shell
and filesystem tools. Sub-second iteration vs the 5-min Gitea redeploy
loop.
What's in this commit (week 1, slice 1):
- vibn-dev Dockerfile: small Ubuntu base (~500 MB target). git, ripgrep,
python3, mise. Language toolchains lazy-install on first use.
- lib/dev-container.ts: ensureDevContainer / suspend / resume /
execInDevContainer. Backed by a new fs_project_dev_containers table.
- lib/feature-flags.ts + /api/admin/path-b/{disable,enable}: kill switch.
Bearer NEXTAUTH_SECRET flips path_b_disabled, propagates in ~10s.
- New MCP tools wired into /api/mcp: devcontainer.{ensure,status,suspend},
shell.exec, fs.{read,write,edit,list,delete,glob,grep}. All enforce
workspace isolation via fs_projects ownership check.
- vibn-tools.ts: 11 new Gemini tool defs (smoke test passes, 63 total).
- chat system prompt: shell-first guidance; gitea_file_* marked
deprecated for iterative work (still available, removed week 3).
Safety nets baked in:
- pathBGuard() returns 503 from every Path B tool when the kill switch
flips
- fs.* paths locked to /workspace
- ensureResourceInWorkspaceProjects via fs_project_dev_containers PK
- per-project resource limits (1 vCPU, 1 GiB RAM) on the compose spec
Still pending (queued):
- dev_server.* (preview URLs through Traefik)
- ship tool (push to Gitea + trigger prod deploy)
- auto-push autosave to vibn-autosave/main every 5 min
- idle-suspend cron after 30 min inactivity
- HMR-through-Traefik spike
- eval harness
Made-with: Cursor
