vibn-frontend/AI_CAPABILITIES.md

# Vibn AI Capabilities

> The full set of actions an AI agent can take on behalf of a Vibn workspace,
> along with the REST endpoints, MCP tools, and safety rails that back them.
>
> **Audience:** agent authors, Cursor rule writers, MCP tool designers, and
> anyone building on the Vibn control plane.
>
> **Scope:** everything an agent sees through `https://vibnai.com/api/*` and
> the `/api/mcp` bridge. No Firestore, no internal agent orchestration —
> just the tenant-safe capability surface.

---

## 1. Mental model

Every capability in this document operates on a single **workspace**. A
workspace is Vibn's tenant boundary and maps 1:1 to:

| Vibn concept | External identity | Example (`mark`) |
|---|---|---|
| Workspace | `vibn_workspaces.slug` | `mark` |
| Gitea org | `gitea_org` | `vibn-mark` |
| Gitea bot user | `gitea_bot_username` | `mark-bot` |
| SSH deploy keypair | `coolify_private_key_uuid` + `gitea_bot_ssh_key_id` | registered on both sides |
| Coolify project | `coolify_project_uuid` | `vibn-ws-mark` |
| Coolify environment | `coolify_environment_name` | `production` |
| Domain namespace | `*.{slug}.vibnai.com` | `*.mark.vibnai.com` |
| AI token | `vibn_sk_…` | one per agent/device |

A single agent token can only act on the workspace it was minted for. Cross-
workspace access is structurally impossible — enforced in
[`lib/coolify.ts`](./vibn-frontend/lib/coolify.ts) by matching every Coolify
resource's `environment_id` against the workspace's project environments
(`ensureResourceInProject`).

### The three views

All capabilities roll up into three user-facing surfaces:

- **Code** — every Gitea repo under `vibn-{slug}/`.
- **Live** — every Coolify app/database/service in `vibn-ws-{slug}`, each
  reachable under `*.{slug}.vibnai.com`.
- **IDE** — Browser-based agent workspace sessions (outside the scope of this doc).

---

## 2. Authentication

Every agent-facing endpoint accepts **either**:

- `Authorization: Bearer vibn_sk_<base64url>` — a workspace-scoped API key
  minted in the settings panel. Stored as a sha256 hash server-side; the
  plaintext is shown exactly once on creation. Can be revoked at any time.
- A NextAuth session cookie — used for the dashboard UI and for browser
  debugging. Not suitable for long-running agents.

Helper: [`requireWorkspacePrincipal()`](./vibn-frontend/lib/auth/workspace-auth.ts)
resolves either to a `WorkspacePrincipal { workspace, user?, source }`.

**403 on a tenant mismatch means:** the token is valid, but the resource
belongs to another workspace. The agent should stop and ask the user.

---

## 3. MCP surface

The MCP bridge lives at `POST https://vibnai.com/api/mcp`. It takes
JSON-over-HTTP bodies shaped like:

```json
{ "tool": "<tool-name>", "params": { /* tool-specific */ } }
```

The Cursor / Claude Desktop config block is auto-generated in the settings
panel and looks like:

```json
{
  "mcpServers": {
    "vibn-mark": {
      "url": "https://vibnai.com/api/mcp",
      "headers": { "Authorization": "Bearer vibn_sk_…" }
    }
  }
}
```

`GET /api/mcp` returns a self-description with the current tool list.
Version: **2.1.0**.

### 3.1 Workspace & identity tools

| Tool | Purpose | Params |
|---|---|---|
| `workspace.describe` | Returns slug, Coolify project uuid, Gitea org, provision status. | — |
| `gitea.credentials` | Returns the bot's username, PAT, clone URL template, and SSH remote template. Use this for every `git clone`/push — never other credentials. | — |

### 3.2 Project tools

| Tool | Purpose | Params |
|---|---|---|
| `projects.list` | Lists Vibn projects (PRDs, imports, etc.) in the workspace. | — |
| `projects.get` | Single project details. | `{ projectId }` |

### 3.3 Application tools

| Tool | Purpose | Params |
|---|---|---|
| `apps.list` | All Coolify apps in the workspace. | — |
| `apps.get` | Single app details (status, fqdn, domains, git info). | `{ uuid }` |
| `apps.create` | Create a Coolify app from a Gitea repo in the workspace's org. Clones over **HTTPS with the workspace bot's PAT embedded in the URL** — SSH is not used because Gitea's SSH isn't reachable on the default port. Auto-domain `{name}.{slug}.vibnai.com`. | `{ repo, branch?, name?, ports?, buildPack?, domain?, envs?, instantDeploy?, dockerComposeLocation?, dockerfileLocation?, baseDirectory? }` |
| `apps.update` | PATCH a whitelisted set of fields (name, description, git branch/commit, ports, build commands, base directory, Dockerfile location, docker-compose location…). | `{ uuid, patch }` |
| `apps.rewire_git` | Re-point an app's `git_repository` at the canonical HTTPS+PAT clone URL. Use to recover older apps that were created with SSH URLs, or to refresh a rotated bot PAT. | `{ uuid, repo? }` — `repo` optional; inferred from current URL if omitted |
| `apps.delete` | Destroy the app. Volumes kept by default. | `{ uuid, confirm }` — `confirm` must equal the app's exact name |
| `apps.deploy` | Trigger a new deployment. | `{ uuid, force? }` |
| `apps.deployments` | List recent deployments + status. | `{ uuid }` |
| `apps.domains.list` | Current domain set. | `{ uuid }` |
| `apps.domains.set` | Replace the domain set. All entries must end with `.{slug}.vibnai.com`. | `{ uuid, domains: string[] }` |
| `apps.envs.list` | List env vars. Values returned are redacted for `shown-once` secrets. | `{ uuid }` |
| `apps.envs.upsert` | Create or update an env var. `is_build_time` is **ignored** — Coolify derives build-vs-runtime from Dockerfile `ARG` usage. | `{ uuid, key, value, isPreview?, isMultiline?, isLiteral?, isShownOnce? }` |
| `apps.envs.delete` | Delete an env var. | `{ uuid, key }` |

### 3.4 Database tools

| Tool | Purpose | Params |
|---|---|---|
| `databases.list` | All databases in the workspace, across all flavors. | — |
| `databases.create` | Provision a database. Supported `type`: `postgresql`, `mysql`, `mariadb`, `mongodb`, `redis`, `keydb`, `dragonfly`, `clickhouse`. | `{ type, name?, isPublic?, publicPort?, image?, credentials?, limits? }` |
| `databases.get` | Details + internal connection URL. | `{ uuid }` |
| `databases.update` | PATCH name, public visibility, image, limits. | `{ uuid, patch }` |
| `databases.delete` | Destroy the database. Volumes kept by default. | `{ uuid, confirm }` — `confirm` must equal the db's exact name |

### 3.5 Auth provider tools

Authentication is a first-class capability. An agent cannot spin up arbitrary
Coolify services — only vetted auth providers from an allowlist.

| Tool | Purpose | Params |
|---|---|---|
| `auth.list` | Auth providers currently deployed in the workspace (classified by Coolify's `service_type`). | — |
| `auth.create` | Provision one of the allowed providers. | `{ provider, name?, description?, instantDeploy? }` |
| `auth.delete` | Destroy an auth provider. Volumes (user data) kept by default. | `{ uuid, confirm }` — `confirm` must equal the service's exact name |

**Allowed providers** (keys passed as `provider`):

- `pocketbase` — lightweight (SQLite) auth + data, single container.
- `authentik` — feature-rich self-hosted IDP.
- `keycloak` / `keycloak-with-postgres` — industry-standard OIDC/SAML.
- `pocket-id` / `pocket-id-with-postgresql` — passkey-first OIDC.
- `logto` — dev-first IDP.
- `supertokens-with-postgresql` — session/auth backend.

Requesting anything outside this list returns 400 with a hint listing the
allowed ones, so the agent can self-correct.

### 3.6 Domain tools (P5.1 — custom apex domains)

Custom apex domains are owned end-to-end by Vibn: the registrar is OpenSRS
(Tucows), authoritative DNS is Google Cloud DNS in the Canadian project, and
domains are pinned to the workspace that registered them. All four lifecycle
steps — search, register, attach, inspect — are agent-callable.

| Tool | Purpose | Params |
|---|---|---|
| `domains.search` | Check availability + price for one or more candidate apex domains via OpenSRS. Stateless; does not reserve anything. | `{ names: string[], period?: number }` — `names` up to 25, `period` in years (auto-bumped for quirky TLDs like `.ai` which requires 2y minimum). |
| `domains.register` | Register a domain through OpenSRS. Registers unlocked; locking happens automatically after `domains.attach` completes. Idempotent per `(workspace, domain)`. | `{ domain, period?, whoisPrivacy?, contact, nameservers?, ca?: { cprCategory, legalType } }` — `ca.*` required for `.ca`. |
| `domains.list` | List all domains owned by the workspace with their status, registrar order id, expiry, and DNS provider/zone. | — |
| `domains.get` | Full record + last 20 lifecycle events. | `{ domain }` |
| `domains.attach` | Wire a registered domain to a Coolify app (or arbitrary IP/CNAME): create Cloud DNS zone, write A/CNAME rrsets, update registrar-side nameservers, append FQDNs to the Coolify app's domain list. Idempotent; safe to retry. | `{ domain, appUuid? \| ip? \| cname?, subdomains?: string[] (default ["@","www"]), updateRegistrarNs? }` |

### Object storage (GCS via S3-compatible HMAC)

Every workspace gets a Canada-hosted GCS bucket, a dedicated service
account, and an HMAC keypair so agent-built apps can use any AWS S3
SDK. The HMAC *secret* is never returned through the API — it's written
directly into Coolify apps via `storage.inject_env`.

| Tool | Purpose | Params |
|---|---|---|
| `storage.describe` | Report the workspace bucket name, region, S3 endpoint, access-key id, and provision status. No secret returned. | — |
| `storage.provision` | Idempotently create/reconcile the workspace's GCP service account, JSON keyfile, bucket (`vibn-ws-{slug}-{rand}`), IAM binding, and HMAC key. Safe to re-run. | — |
| `storage.inject_env` | Push `STORAGE_*` env vars (endpoint, region, bucket, access key id, secret access key, force_path_style) into a Coolify app. The secret is written server-side with `is_shown_once=true`; it never transits the response body. | `{ uuid, prefix? }` — `prefix` defaults to `STORAGE_`; use `S3_` for apps that expect AWS-standard names |

The bucket is S3-compatible: point any `aws-sdk` / `@aws-sdk/client-s3`
/ `boto3` at `STORAGE_ENDPOINT` with `force_path_style=true` (`STORAGE_*`
env vars are set by `storage.inject_env`).

**Residency note:** Cloud DNS is global anycast — configuration is not
Canadian-pinned at the storage layer. The workspace-level `dns_provider`
flag (default `cloud_dns`) will let us swap in CIRA D-Zone for strict
Canadian residency without touching the MCP surface.

**Billing:** Every successful `domains.register` writes a `debit` row to
`vibn_billing_ledger` with the OpenSRS order id as `ref_id`. The
`vibn_domain_events` table keeps an append-only audit of every lifecycle
call (`register.attempt`, `register.success`, `register.failed`,
`attach.success`).

**Verified end-to-end (2026-04-22)** against PROD GCP + OpenSRS sandbox +
PROD Coolify (Coolify `v4.0.0-beta.473`); see
`vibn-frontend/scripts/smoke-attach-e2e.ts`. **All 5 sub-systems green.**

- ✓ OpenSRS register against Horizon (sandbox) returns order id, response 200.
- ✓ Cloud DNS managed zone created in `master-ai-484822` with public anycast NS.
- ✓ A records (`@`, `www`) written to the zone.
- ✓ Registrar-side nameserver update accepts Cloud DNS NS values
  (trailing-dot normalization in `lib/opensrs.ts`); sandbox returns 480
  because its mock registry doesn't know real Google NS hosts, which is
  expected — live mode talks to real registries that accept any resolvable NS.
- ✓ Unlock → update NS → relock fallback path verified (sandbox-recognized
  nameservers return 200; the unlock/relock sequence is exercised when the
  registry returns 405 lock-conflict).
- ✓ Coolify domain-list PATCH adds the apex + `www` to the application
  `fqdn` column and the smoke test re-fetches it to confirm.

> **Operational gotcha — the destination server must be proxy-enabled.**
> Coolify's `update_by_uuid` controller accepts `domains` as a comma-separated
> list and only maps it onto the model's `fqdn` column when the destination
> server's `Server::isProxyShouldRun()` returns `true`. That helper requires
> **both** `proxy.type ∈ {TRAEFIK, CADDY}` *and* `is_build_server = false`.
> If either is misconfigured the PATCH returns 200 but the field is silently
> dropped (Laravel mass-assignment ignores `domains` because it isn't in
> `$fillable`, and the controller never copies it into `fqdn`). We hit this
> on `coolify-server-mtl` (`zg4cwgc44ogc08804000gggo`), which had
> `proxy=null` and `is_build_server=true`. Fixed by:
>
> ```sql
> UPDATE servers
>   SET proxy = jsonb_set(coalesce(proxy,'{}'::jsonb), '{type}', '"TRAEFIK"')
>   WHERE uuid = 'zg4cwgc44ogc08804000gggo';
> UPDATE server_settings
>   SET is_build_server = false
>   WHERE server_id = (SELECT id FROM servers WHERE uuid = 'zg4cwgc44ogc08804000gggo');
> ```
>
> followed by `docker restart coolify` to clear Laravel's in-memory config.
> Sending `fqdn` directly is **not** an alternative — the controller's
> `$allowedFields` whitelist rejects it with 422 "This field is not allowed."

### 3.7 Agent-side stdio MCP servers (`vibn-agent-runner`)

Separate from the control-plane MCP at `/api/mcp` (which is what external
agents call *into* Vibn), the `vibn-agent-runner` exposes its own in-house
tool surface *outward* over stdio MCP. This lets Cursor, Claude Desktop,
Goose, or any MCP-speaking client drive the same Coolify / Gitea / workspace
tooling the Coder/PM/Marketing sub-agents use internally — with the same
protected-repo and protected-app guardrails enforced centrally.

Architecture: every tool now has three touch-points backed by one source of truth:

```
vibn-agent-runner/src/tools/<domain>-api.ts   ← pure, config-agnostic logic + security guards
vibn-agent-runner/src/tools/<domain>.ts       ← thin registerTool() wrappers for the in-process agent loop
vibn-agent-runner/src/mcp/<domain>-server.ts  ← stdio MCP server for external clients
```

| Server | Tools | Required env |
|---|---|---|
| `vibn-coolify-mcp` | 7 — list_projects, list_applications, deploy, get_logs, list_all_apps, get_app_status, deploy_app | `COOLIFY_API_URL`, `COOLIFY_API_TOKEN` |
| `vibn-gitea-mcp` | 6 — create/list/close issues, list_repos, list_all_issues, read_repo_file | `GITEA_API_URL`, `GITEA_API_TOKEN`, `GITEA_USERNAME` |
| `vibn-workspace-mcp` | 8 — read/write/replace/list/find/search_code, execute_command, git_commit_and_push | `WORKSPACE_ROOT` (+ Gitea creds for git push) |
| `vibn-platform-mcp` | 7 — save_memory, list_memory, list_skills, get_skill, finalize_prd, get_prd, web_search | `SESSION_KEY` (optional), Gitea creds (for skills) |
| `vibn-agent-mcp` | 2 — spawn_agent, get_job_status (dispatches into the runner's HTTP API) | `AGENT_RUNNER_URL` (defaults to `http://localhost:3333`) |

Run locally with `npm run mcp:<name>` (or `:dev` via ts-node) in
`vibn-agent-runner/`. Smoke-test any server with
`node scripts/smoke-mcp.js <name>`. The in-process agent loop still sees
the same 28 registered tools — no behavioral regression.

---

## 4. REST surface

Every MCP tool is also exposed as a plain HTTP endpoint under
`/api/workspaces/{slug}/…`. Agents that prefer curl-style access can use
these directly; the shape is identical to the MCP `params`. Auth is the
same bearer header.

### 4.1 Workspace & key management

| Method | Path | Description |
|---|---|---|
| GET | `/api/workspaces` | All workspaces the principal has access to. |
| GET | `/api/workspaces/{slug}` | Workspace details. |
| POST | `/api/workspaces/{slug}/provision` | Idempotent re-run of Gitea org + bot + SSH keypair + Coolify project setup. |
| GET | `/api/workspaces/{slug}/keys` | List API keys (metadata only). |
| POST | `/api/workspaces/{slug}/keys` | Mint a new API key. Full token returned once. |
| DELETE | `/api/workspaces/{slug}/keys/{keyId}` | Revoke a key. |
| GET | `/api/workspaces/{slug}/gitea-credentials` | Return bot username, PAT (decrypted), clone/SSH templates. |
| GET | `/api/workspaces/{slug}/bootstrap.sh` | Shell script that writes `.cursor/rules`, `.cursor/mcp.json`, `.env.local` into the cwd. |

### 4.2 Applications

| Method | Path | Description |
|---|---|---|
| GET | `/api/workspaces/{slug}/apps` | List apps. |
| POST | `/api/workspaces/{slug}/apps` | Create an app from a workspace repo. |
| GET | `/api/workspaces/{slug}/apps/{uuid}` | App details. |
| PATCH | `/api/workspaces/{slug}/apps/{uuid}` | Update whitelisted fields. |
| DELETE | `/api/workspaces/{slug}/apps/{uuid}?confirm=<exact-name>` | Destroy app. |
| POST | `/api/workspaces/{slug}/apps/{uuid}/deploy` | Trigger deploy. |
| GET | `/api/workspaces/{slug}/apps/{uuid}/deployments` | List deployments. |
| GET | `/api/workspaces/{slug}/apps/{uuid}/domains` | List domains. |
| PATCH | `/api/workspaces/{slug}/apps/{uuid}/domains` | Replace domain set. |
| GET | `/api/workspaces/{slug}/apps/{uuid}/envs` | List env vars. |
| PATCH | `/api/workspaces/{slug}/apps/{uuid}/envs` | Upsert env var(s). |
| DELETE | `/api/workspaces/{slug}/apps/{uuid}/envs?key=FOO` | Delete env var. |
| GET | `/api/workspaces/{slug}/deployments/{deploymentUuid}/logs` | Deployment logs. |

### 4.3 Databases

| Method | Path | Description |
|---|---|---|
| GET | `/api/workspaces/{slug}/databases` | List databases. |
| POST | `/api/workspaces/{slug}/databases` | Create a database (8 flavors). |
| GET | `/api/workspaces/{slug}/databases/{uuid}` | Database details + internal connection URL. |
| PATCH | `/api/workspaces/{slug}/databases/{uuid}` | Update fields. |
| DELETE | `/api/workspaces/{slug}/databases/{uuid}?confirm=<exact-name>` | Destroy database. |

### 4.4 Auth providers

| Method | Path | Description |
|---|---|---|
| GET | `/api/workspaces/{slug}/auth` | List deployed auth providers + the allowlist. |
| POST | `/api/workspaces/{slug}/auth` | Provision a provider from the allowlist. |
| GET | `/api/workspaces/{slug}/auth/{uuid}` | Provider details. |
| DELETE | `/api/workspaces/{slug}/auth/{uuid}?confirm=<exact-name>` | Destroy provider. |

### 4.5 Domains (P5.1)

| Method | Path | Description |
|---|---|---|
| POST | `/api/workspaces/{slug}/domains/search` | Availability + pricing for up to 25 candidate names. |
| GET | `/api/workspaces/{slug}/domains` | List workspace-owned domains. |
| POST | `/api/workspaces/{slug}/domains` | Register a domain (idempotent per `(workspace, domain)`). |
| GET | `/api/workspaces/{slug}/domains/{domain}` | Full record + last 20 events. |
| POST | `/api/workspaces/{slug}/domains/{domain}/attach` | Create Cloud DNS zone, write records, update registrar NS, wire Coolify domain list. |

---

## 5. Gitea surface

AI agents **never** talk to the root Gitea admin token. They use the
workspace's dedicated bot user.

### 5.1 What the bot can do

- Fully own the `vibn-{slug}` org (added as the org's owner team).
- Read/write every repo in that org via its PAT.
- Push over SSH using the workspace's ed25519 deploy key (same keypair
  Coolify uses to pull code).
- What it **cannot** do: touch any other org, the root admin surface, or
  Gitea's `/admin/*` endpoints.

### 5.2 How to get the bot credentials

```http
GET /api/workspaces/{slug}/gitea-credentials
Authorization: Bearer vibn_sk_…
```

Returns:

```json
{
  "bot": { "username": "mark-bot", "token": "…" },
  "gitea": {
    "apiBase": "https://git.vibnai.com/api/v1",
    "host": "git.vibnai.com",
    "cloneUrlTemplate": "https://mark-bot:{{token}}@git.vibnai.com/vibn-mark/{{repo}}.git",
    "sshRemoteTemplate": "git@git.vibnai.com:vibn-mark/{{repo}}.git",
    "webUrlTemplate": "https://git.vibnai.com/vibn-mark/{{repo}}"
  },
  "workspace": { "slug": "mark", "giteaOrg": "vibn-mark" }
}
```

The PAT is stored **encrypted at rest** using AES-256-GCM with the
`VIBN_SECRETS_KEY` server secret; the decrypt step runs only on this endpoint.

### 5.3 Gitea operations via the standard Gitea API

Once the agent has `{bot.token, gitea.apiBase}`, it can call any standard
Gitea v1 endpoint as the bot, scoped to the workspace org. Common ones:

- `POST /orgs/{org}/repos` — create a repo.
- `PATCH /repos/{org}/{repo}` — update repo settings.
- `GET /repos/{org}/{repo}/contents/{path}` — read files.
- `PUT /repos/{org}/{repo}/contents/{path}` — write files (commits).
- `POST /repos/{org}/{repo}/pulls` — open PRs.
- `POST /repos/{org}/{repo}/branches` — create branches.

---

## 6. Domain policy

Every app gets an auto-generated domain under the workspace's namespace:

```
{app-slug}.{workspace-slug}.vibnai.com
```

For example, creating an app named `my-api` in workspace `mark` yields
`my-api.mark.vibnai.com` automatically — no DNS config, no cert work,
served by Coolify's wildcard Traefik.

### 6.1 What agents can do

- Accept the auto-generated domain (default path).
- Replace the domain set via `PATCH /apps/{uuid}/domains`, provided every
  entry ends with `.{workspace-slug}.vibnai.com`.

### 6.2 What agents cannot do

- Point an app at a domain outside the workspace's namespace. The server
  rejects this with 403 regardless of DNS state:

  ```json
  { "error": "Domain evil.com is not allowed; must end with .mark.vibnai.com",
    "hint": "Use my-api.mark.vibnai.com" }
  ```

This is enforced by `isDomainUnderWorkspace()` in
[`lib/naming.ts`](./vibn-frontend/lib/naming.ts).

### 6.3 Custom (external) domains

Not exposed to AI agents. A human can still add them through Coolify
directly or through a future human-gated UI.

---

## 7. Safety model

### 7.1 Tenant enforcement

Every resource-returning helper in `lib/coolify.ts` runs through
`ensureResourceInProject()`. It:

1. Trusts an explicit `project_uuid` on the resource if present, else
2. Fetches the project's environment ids via `GET /projects/{uuid}` and
   verifies the resource's `environment_id` is in that set.

A token for `mark` that tries to read an app in `justine`'s project returns:

```json
{ "error": "Application <uuid> does not belong to project <mark-project-uuid>" }
```

with HTTP 403. Cross-workspace enumeration and access are not just
discouraged — they fail at the helper level.

### 7.2 Destructive operations

Every delete endpoint requires `?confirm=<exact-resource-name>`:

```
DELETE /apps/{uuid}                → 409 "confirmation required"
DELETE /apps/{uuid}?confirm=wrong  → 409 "confirmation required"
DELETE /apps/{uuid}?confirm=my-api → 200 deleted
```

This means an agent hallucinating a delete call cannot cost you the
resource — it must first know the exact name, which implies it just listed
or just created it.

**Volumes are kept by default** on delete. To also remove volumes, pass
`?volumes=delete` (apps/dbs) — this is opt-in, per-call, never the default.

### 7.3 Creation guardrails

- Apps can only be created from repos in the workspace's Gitea org.
- Auth providers can only be created from the allowlist (see §3.5).
- Database flavors are restricted to the 8 Coolify supports.
- Env var keys must match `/^[A-Z_][A-Z0-9_]*$/` (no shell-escape tricks).

### 7.4 Secrets handling

- `VIBN_API_KEY` is only shown **once** on mint. Server keeps a sha256 hash.
- Gitea bot PATs are **encrypted at rest** (AES-256-GCM with
  `VIBN_SECRETS_KEY`).
- The SSH private key is held by Coolify, not by Vibn; the public key is
  pushed to the Gitea bot user's key list. Rotating is a re-provision.
- Agent prompts and Cursor rules include a "treat VIBN_API_KEY like a
  password — never print or commit it" directive.

---

## 8. Worked examples

### 8.1 "Build me a Next.js app with a Postgres and Pocketbase auth"

From the agent's side, using MCP:

```json
// 1. Ensure a repo exists in the workspace org (standard Gitea API,
//    using the bot PAT from gitea.credentials).
POST https://git.vibnai.com/api/v1/orgs/vibn-mark/repos
{ "name": "my-site", "private": true, "auto_init": true }

// 2. Create the Coolify app. Auto-domain my-site.mark.vibnai.com.
{ "tool": "apps.create",
  "params": { "repo": "my-site", "ports": "3000", "instantDeploy": false } }

// 3. Provision a Postgres.
{ "tool": "databases.create",
  "params": { "type": "postgresql", "name": "app-db" } }
// → returns { internalUrl: "postgres://…@<uuid>:5432/postgres" }

// 4. Wire the db URL into the app as an env var.
{ "tool": "apps.envs.upsert",
  "params": { "uuid": "<app-uuid>", "key": "DATABASE_URL",
              "value": "<internalUrl>" } }

// 5. Deploy Pocketbase as the auth layer.
{ "tool": "auth.create",
  "params": { "provider": "pocketbase", "name": "auth" } }

// 6. First real deploy.
{ "tool": "apps.deploy", "params": { "uuid": "<app-uuid>" } }

// 7. Poll.
{ "tool": "apps.deployments", "params": { "uuid": "<app-uuid>" } }
// → [{ uuid, status: "finished" | "in_progress" | "failed" | "queued" }]
```

The agent hands the user back `https://my-site.mark.vibnai.com`.

### 8.2 "Add an `api` subdomain to my app"

```json
{ "tool": "apps.domains.set",
  "params": {
    "uuid": "<app-uuid>",
    "domains": ["my-site.mark.vibnai.com", "api.mark.vibnai.com"]
  } }
```

Valid — both end with `.mark.vibnai.com`. `evil.com` or `my-site.justine.vibnai.com`
would return 403.

### 8.3 "Delete the whole thing"

Agent must learn the resource names first (or it'll hit the confirm gate):

```json
// Learn the name.
{ "tool": "apps.get", "params": { "uuid": "<app-uuid>" } }
// → { name: "my-site", ... }

// Delete with matching confirm.
{ "tool": "apps.delete",
  "params": { "uuid": "<app-uuid>", "confirm": "my-site" } }
```

Wrong confirm returns `409 "Confirmation required"`.

---

## 9. Error handling reference

| Status | Meaning | What the agent should do |
|---|---|---|
| 400 | Bad request body (invalid JSON, missing required field, invalid type). | Fix the body, retry. |
| 401 | No / bad bearer token. | Ask the user to mint a fresh key. |
| 403 | **Tenant mismatch** — resource belongs to another workspace, domain outside workspace namespace, or repo not in workspace org. | **Stop.** Do not retry with guessed values. Ask the user. |
| 404 | Resource not found (app/db/service/repo uuid wrong). | Re-list to find the right uuid. |
| 409 | Delete confirmation missing or wrong. | Fetch the resource name first, then retry with `confirm=<name>`. |
| 422 | Coolify validation failure (e.g. malformed domain). | Check the `details` field. |
| 502 | Upstream Coolify/Gitea error. | Retry with backoff. |
| 503 | Workspace not fully provisioned yet. | Call `POST /provision`, then retry. |

---

## 10. Versioning

The MCP descriptor at `GET /api/mcp` reports a semver `version`. Tool names
are append-only within a major version — agents can cache the tool list
safely for the duration of a conversation but should re-fetch on 404.

Current version: **2.1.0**.

- **1.x** — session-cookie-only MCP, no tenant keys.
- **2.0** — `vibn_sk_…` keys, workspace-scoped Gitea bot + Coolify project.
- **2.1** — create/update/delete for apps, 8 database flavors, auth
  provider allowlist, domain policy enforcement, confirm-gated deletes.

---

## 11. Where to look in the code

- `lib/auth/workspace-auth.ts` — `requireWorkspacePrincipal`, the gate.
- `lib/auth/secret-box.ts` — AES-256-GCM encryption of Gitea PATs.
- `lib/workspaces.ts` — `ensureWorkspaceProvisioned` (the idempotent setup).
- `lib/gitea.ts` — Gitea client (orgs, users, PATs, SSH keys).
- `lib/coolify.ts` — Coolify client, tenant helpers, all resource CRUD.
- `lib/naming.ts` — domain policy, slugify, SSH URL templates.
- `lib/ssh-keys.ts` — ed25519 keypair generation + OpenSSH formatting.
- `app/api/workspaces/[slug]/…` — REST surface.
- `app/api/mcp/route.ts` — MCP dispatcher and tool implementations.
- `components/workspace/WorkspaceKeysPanel.tsx` — settings UI.