# Working on PIG

Onboarding for an agent or engineer joining this codebase cold. Read this
first, then [`docs/build-plan.md`](./docs/build-plan.md) for what to build.

Named `AGENTS.md` because that is the file coding agents look for by
convention. Everything here applies equally to humans.

---

## 1. What PIG is, in three sentences

A company that aggregates GPU capacity and resells it runs **two pipelines**,
and its business is the spread between them. Generic CRMs model one pipeline
against companies — they have no concept of inventory, no concept of a
commitment you already paid for, and so cannot answer the only question that
matters: *which contracted capacity is sold, to whom, at what margin, and what
is idle right now.*

PIG is built around that question, it is Apache 2.0, and it is designed to be
self-hosted by the customer.

**The load-bearing table is `allocations`**, which joins a `capacity_commitment`
(what we bought, at a known cost) to a `demand_deal` (what we sold, at a known
price). Margin, utilisation and idle capacity all fall out of that one join.
Everything else is plumbing that exists to keep that ledger honest.

---

## 2. Orientation

```
packages/core     Ontology (stages, tiers, enums) + margin arithmetic + palette
packages/db       Drizzle schema, migrations, seeds
packages/prime    Typed client for the Prime Intellect compute API
apps/api          Hono HTTP API, auth, capacity service
apps/web          React + Vite + Tailwind + shadcn-idiom components
apps/mcp          MCP server (stdio) — 9 tools
docs/             ontology.md, build-plan.md, agents.md, deploy.md, seed-data.md
```

~11,000 lines. 39 tests. Node 22+.

| | |
|---|---|
| Repo | `PIG/pig` on git.karti.ai (Gitea) |
| Live | https://primeintellectgrowth.com |
| CI | Gitea Actions, `.gitea/workflows/ci.yml`, ~2 min, must stay green |
| Deploy | `bash scripts/deploy.sh` on the host — deliberately manual |

---

## 3. Running it

```bash
npm install

# Postgres. PIG needs its own database — never point it at a shared one.
docker run -d --name pig-dev -p 5432:5432 \
  -e POSTGRES_USER=pig -e POSTGRES_PASSWORD=pig -e POSTGRES_DB=pig \
  postgres:16-alpine

export DATABASE_URL=postgres://pig:pig@localhost:5432/pig
npm run db:migrate
npm run db:seed     # sourced, cited people — optional
npm run db:demo     # a plausible demo book — optional, prefixed "DEMO — "

npm run dev:api     # :8920
npm run dev:web     # :5173, proxies /api to 8920
```

With no `SUPABASE_URL` set, **authentication is disabled in development** and
every request runs as the first user in the table. `loadConfig` refuses to start
in production without it, so this cannot leak.

Before pushing:

```bash
npm run typecheck && npm test
```

---

## 4. Rules that must not be broken

These are load-bearing. Breaking one produces a subtle failure, not an error.

**Intelligence never lives in the API.** Handlers validate, authorize, call a
service, serialise. Research, enrichment, scoring and matching heuristics live
in the service layer or in the agent. The API signals the agent by *writing a
row to `agent_tasks`*, never by calling it — so the queue survives the agent
being down and no request thread ever blocks on a model.

**Authentication is not authorization.** A verified JWT proves someone has an
account in an identity provider that PIG *shares with another application*. It
does not prove they belong here. Access requires a row in PIG's own `users`
table. A token without one gets `403 needs_profile`, which the front end turns
into the join flow — never a login screen they have already completed.

**Cost is charged against the full commitment, not the hours that sold.**
Unsold hours are already paid for. Any other treatment reports a healthy margin
on a block that is losing money, which is precisely the failure PIG exists to
prevent. There is a test pinning this; if you "fix" it, read the test first.

**Sold and held are different.** A live hold removes capacity from everyone
else's availability — otherwise two sellers promise the same GPUs — but it is
not revenue and must never count toward utilisation.

**Money is integer cents.** Never floats. Round, never truncate: 2.43 is
2.4299999 in binary and a lost cent compounds across millions of GPU-hours.

**Agent claims carry evidence.** Enrichment writes to `facts` with a score, a
band, a source URL and a status — never directly to the record. Only `verified`
self-applies; anything weaker waits for a human. An agent allowed to write
unattributed claims will eventually write a wrong one and nobody will be able
to tell which.

**Never invent data about real people.** Seed records carry a confidence grade
and a source URL, both shown in the UI. No email address is ever inferred.
Authorship is not employment — contributors, residency participants and alumni
are recorded as what the evidence shows. Demo data is prefixed `DEMO — ` and
its customers are fictional.

---

## 5. Traps that have already bitten

Each of these cost real time. None produced an error message.

**`onConflictDoNothing()` is a no-op without a matching unique constraint.**
It has silently duplicated seed data twice. If there is no unique index to
conflict on, do an existence check instead.

**`z.coerce.boolean()` turns the string `"false"` into `true`.** Every feature
flag set to false was silently on. Use the `envBoolean` helper in
`apps/api/src/lib/config.ts`.

**Grid children that truncate need `min-w-0`.** Grid items default to
`min-width: auto` and `truncate` sets `nowrap`, so a long title becomes
unshrinkable content and the page scrolls sideways on a phone.

**Drizzle-generated migrations are not always valid SQL.** A `jsonb → integer`
cast was emitted without the `USING` clause Postgres requires. Always apply a
new migration to a real empty database before pushing — CI does this, but find
out before CI does.

**The proxy allows exactly one inline script, by hash.** `index.html` carries a
pre-paint theme script that prevents a white flash for dark-mode users. Editing
it changes its hash and the browser silently blocks it. CI asserts the hash;
if it fails, update the CSP in `deploy/Caddyfile.example`, on the server, and
the expected value in the workflow.

**`prices.onDemand` from the Prime Intellect API is the TOTAL FOR THE NODE.**
Verified: 1× A100 at 1.79, 2× A100 at 3.58. `gpuMemory` is likewise a node
total. There is an open bug for this — the mapper currently stores both as if
per-GPU, so an 8-GPU node reads eight times too expensive.

**Prime Intellect has two API hosts.** `api.primeintellect.ai` is compute and
pods. Inference is `api.pinference.ai/api/v1`, OpenAI-compatible.

**Piggy's default model thinks aloud.** `nvidia/nemotron-3-nano-30b-a3b` is a
hybrid reasoning model; under a tight `max_tokens` it rambles and truncates.
Pass `reasoning_effort: "none"` for tool use, routing and extraction.

**Deployment traps** live in `deploy/README.md` — chiefly that every Caddy site
block on that host needs `bind 10.0.0.2`, and that the CI runner uses
`container.network: host` so dependencies must be published on `127.0.0.1`.

---

## 6. Conventions

**Comments explain *why*, never *what*.** The code says what it does. Comments
carry the reasoning that would otherwise be lost — why this treatment and not
the obvious one, what breaks if it changes, what was tried and rejected. Match
the density already in the file; do not add narration.

**Match the surrounding style.** British spelling in prose and comments
(`utilisation`, `normalise`). Types are explicit at module boundaries. No
default exports.

**Enums come from `@pig/core`.** Never retype a stage list or a tier into a zod
schema — import it, so removing a value stops validating rather than silently
persisting.

**Tests pin decisions, not implementations.** The valuable cases are the ones
that would pass under a plausible-but-wrong version. Look at
`packages/core/test/margin.test.ts` for the register.

**Commits explain the reasoning**, including what was tried and rejected, and
say plainly when something was found by running the code rather than reading
it. Read `git log` for the register.

**Verify by running, not by assuming.** Several of the worst defects here were
found only by fetching a URL from another machine or applying a migration to a
real database. "It should work" has been wrong repeatedly.

---

## 7. Where to start

[`docs/build-plan.md`](./docs/build-plan.md) has 24 tasks in three waves with
real dependency edges.

**Do these first, alone, before anything fans out:**

- **F1** — install the shadcn primitive set
- **F3** — the RBAC permission model
- **F2** — the shared API write-path convention (needs F3 to call into)

They are small and they are the interface every other track codes against.
Starting parallel work before they settle is how it turns into merge conflict.

**Then the two that unblock a demo:**

- **A1** — allocation and commitment write paths. Today the core table can only
  be populated by seed, so a visitor can look at the demo book but cannot enter
  a deal of their own.
- **A2** — API keys. Nothing mints one, so the MCP server — the headline
  feature — is unreachable in production.

**A4 (Piggy) is fully independent** and can start immediately alongside the
foundation. It touches no UI and no shared API conventions.

---

## 8. What not to do

- Do not copy component files from `trycompai/crm`. Most are shadcn/ui
  originals — take them from upstream where they are canonical. Borrow the
  compositions as ideas; the debt is credited in `NOTICE`.
- Do not open self-registration on the identity provider. It is shared with
  another application. PIG mints accounts itself, gated on an invite.
- Do not put a production SSH key on the CI runner. Deployment is manual on
  purpose.
- Do not weaken the production guard that refuses to start without an identity
  provider.
- Do not seed or infer email addresses for real people.