Mark Henderson
e0844b5f2e
Five focused improvements rolled into one deploy:
1. Pre-allocated preview ports + Traefik labels.
Bake docker labels for ports 3000-3009 into every dev-container
compose at ensureDevContainer() time. Each port has its own
subdomain: preview-<slot>-<projectSlug>-<token>.preview.vibnai.com.
Token is derived from projectId so URLs are stable across restarts
but not enumerable across projects. Joins the coolify external
network so Traefik can reach the container.
This avoids the runtime compose-mutation approach (which would
have required a Coolify redeploy on every dev_server.start, ~30s
latency). The trade-off is a hard cap of 10 concurrent dev servers
per project — fine for the "frontend + API" scenario, the only one
we can practically envision.
Wildcard DNS + Traefik DNS-01 cert remain a manual one-time setup
(see vibn-dev/PREVIEWS.md).
2. dev_server.start: port-collision handling.
Detect listeners via `ss` + `lsof` before launching. Three outcomes:
- port out of slot range → PortOutOfRangeError → 400 with allowedRange
- port owned by a different process → PortBusyError → 409
- port owned by a tracked vibn dev server (same project) → kill
the stale row and reuse the slot (most-recent-write-wins; matches
AI mental model when it does an edit-restart loop)
Surfaced via dedicated MCP error codes so the AI can recover
intelligently instead of looping the same start call.
3. gitea_file_{read,write,delete}: hard-removed from AI tool list.
These tools competed with fs.* and tempted the AI into the slow
path. Pulled from VIBN_TOOL_DEFINITIONS but kept in the MCP
dispatcher for 30 days for any external clients still using them.
System prompt rewritten to make Path B the only documented way to
author code; gitea_repo_* + gitea_branches_* remain because they
handle one-time orchestration with no fs.* equivalent.
4. System prompt: HMR + preview-port discipline.
New section covering Vite HMR (clientPort:443 wss), Next dev
(-H 0.0.0.0), and Express (HOST=0.0.0.0). Explicit "ports must be
3000-3009" rule + "if PORT_BUSY don't blindly retry" guidance.
5. Cron docs (vibn-dev/CRON.md).
/etc/cron.d/vibn-path-b template + smoke commands for autosave
and idle-sweep. Wires both 5-minute jobs that already have admin
endpoints (POST /api/admin/path-b/{autosave,idle-sweep}).
MCP version bump 2.6.0 -> 2.7.0. Smoke test: 65 tool defs (down from
68 after gitea_file_* removal), all accepted by Gemini.
Made-with: Cursor
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