# AGENTS.md — SlabUploader Working contract for coding agents. Read before writing code. Status: **Gate A freeze** · signed 2026-08-31 PT · docs cut to `main` 2026-09-06 · SoT: Gitea `Ty_Tech/SlabUploader` on **gitea-atd** (not mirrors). --- ## 0. Where each doc lives | Doc | Owns | |---|---| | `docs/TECH-SPEC-PIPELINE.md` | Deterministic math, image prep, constants, test vectors | | `docs/ARCHITECTURE.md` | Hybrid topology, what-runs-where, secrets why, status machine | | `AGENTS.md` | Hard rules for coding agents (locks below) | | `docs/DATA-MODEL.md` | Store row / schema facts | | `docs/OPENAPI.md` | Wire / HTTP contracts | | `docs/CONTENT-WOO.md` | Listing copy and Woo payload | | `docs/PROMPTS.md` | Call 1 / Call 2 prompt files | | `docs/DEPLOYMENT.md` | Compose, Caddy, secrets placement, ops | | `docs/UX.md` | Presentation: what the mill owner sees and does (signed) | | `docs/UX-DESIGN.md` | Non-normative wireframes only. `docs/UX.md` wins on any conflict. | | `docs/TEST-SPEC.md` | Engineer test bar: pyramid cases, phased by gate, through PROD | | `docs/UAT-PRACTICE.md` | Walkable practice UAT for `SLAB-UAT-*` | | `docs/IMPL-PLAN.md` | Phases 0–6, Gates A/B/C meanings, exit gates. Phase 2 is a deferred stub. | | `deploy/INVENTORY.md` | Host worksheet before port bind (Gate B) | | `README.md` | Orientation only | | `docs/archive/PRD-2026-08.txt` | Frozen archive. Not a source for new work. | Live docs agree. If two live files disagree, that is a docs bug: fix the files, then continue. Run `docs/checks/check-structure.sh` after doc structure edits. It pins ownership, calendar home, and lock phrases. ### Known open gaps - Issue #4: exact minimum browser version pins and deeper load-bearing API inventory. Phone + PC families are already locked in `docs/UX.md` / TECH-SPEC. --- ## 0b. Gates and phases **Phase 0 = Gates A+B. Gate C = early Phase 1.** Call 1/2 only after Gate C is green, still inside POC. The Gate A/B/C meanings table and phase deliverables live in `docs/IMPL-PLAN.md` §Gates. Other docs may name a gate or map test cases to a phase. They must not copy the meanings table. ### Freeze provenance (Gate A) | SHA | What locked | |---|---| | `a94d81d` | gitea-atd `Ty_Tech/SlabUploader` as remotes SoT | | `457711b` | AGENTS.md + hybrid IMPL Phase 0 | | `4ec478f` | Contradiction patches (README/PRD/Woo/DEPLOYMENT) | | `4d9f307` / `4e97770` | Inference review + hybrid capture pipeline (pre-freeze baseline) | Docs refactor is on `main` (cut 2026-09-06). Product locks above are unchanged. ### Known stale PRD lines `docs/archive/PRD-2026-08.txt` is frozen history. These PRD lines are superseded by live docs: FR17 (fig-* 1+, feat-* 0+), FR19 (species $/bdft only), FR40 (client-side, not server-side processing), NFR server normalization timing, FR42 (env-agnostic DEPLOYMENT + deploy/INVENTORY.md). --- ## 1. Topology (locked — hybrid) **Client (SvelteKit) owns the happy path:** - Capture 1–5 photos - Sheet detect + chroma-key / black threshold + **four knobs inline on capture** (sheet, sensitivity, edge offset, feather) with **live re-run** and mask overlay on the source photo - Mask overlay + **user confirm** before measurement - Length axis overlay (rotate / confirm) - sqft, bdft, 6" width samples - 3:4 transparent PNG, 80% fill at extremes, shorter side ≥ 1600 when source allows - Draft payload: originals + processed PNGs + length/thickness/SKU/sqft/bdft/widths **Server (FastAPI) owns:** - Store drafts / settings / taxonomy cache - U2Net "Try harder" — **deferred from POC**, not deleted. Architecture keeps the one-photo server path for awkward backgrounds post-POC. POC mask tuning is **client-side only** (sheet + four knobs, live re-run). - WooCommerce (taxonomy sync, SKU check, create product) — browser never calls Woo - Inference **proxy** (Call 1 / Call 2) — keys never in browser - Prompt files (server text files, read fresh) Happy path never leaves the phone until the user continues after confirmed mask + numbers. Deferred work and non-goals are in `docs/ARCHITECTURE.md` and `docs/IMPL-PLAN.md`. Depth: `docs/ARCHITECTURE.md`. --- ## 2. Deferred work The MVP is online-only. Measuring lives in the browser. Manual SKU entry, manual length, and client-side measure/crop are the source of truth. Undersized source warns and requires retake. The server stores client-sent numbers; there is no server happy-path pipeline for the deterministic core. Phase 2 is a deferred stub for offline PWA, OCR, and ruler detection. Post-POC items: LoRA / fine-tune, figure-/category-weighted pricing (v1.5), auto-dimension overlay (v1.5), bulk publish, staff roles, analytics, SKU update path. Depth: `docs/ARCHITECTURE.md` §4 and `docs/IMPL-PLAN.md` Phase 2. --- ## 3. Deterministic core (non-negotiable) Encode TECH-SPEC exactly: - **bdft = sqft × thickness_in** (identity: 1 sqft @ 1" = 1 bdft). - Units: inches in 1/8" steps; sqft/bdft 2 decimals; price half-up 2 decimals. - Manual length, thickness, SKU, price always win. - Image prep: sheet/sliders → mask confirm → length axis confirm → 3:4 PNG / 80% fill / ≥1600px when source allows. - Undersized source warns and requires retake. Photo is not publishable until retake. - Pricing: species `$/bdft` from Settings, seeded by Woo species sync; `rec = bdft × price_per_bdft`; user override sticks; missing rule leaves rec empty, manual allowed. - Port TECH-SPEC **TV-1 through TV-10** (including TV-10 Rounding). Client (or shared pure modules the client uses) is authoritative for math; server **stores** client-sent numbers. Depth: `docs/TECH-SPEC-PIPELINE.md`. --- ## 4. Secrets and settings **Server-side only:** - Woo WordPress username + application password (dedicated low-privilege WP user for product create/edit + media) - Inference API key and endpoint (treat inference URL as sensitive) - AES master key (`SLAB_AES_KEY` env only; never in DB or repo) **`WOO_BASE_URL`:** compose / host `.env` only (`https://` required). Settings shows it read-only. Not a SQLite settings row. FastAPI rejects `http://` at startup. **Server:** AES-GCM at rest in SQLite for Woo Application Password + inference secrets. Settings UI POSTs username + application password to FastAPI; server encrypts. All Woo and inference calls are server-side. Rotate by revoking the application password in WP Users → Profile and re-entering in Settings. WooCommerce consumer keys (`ck_`/`cs_`) are not implemented. **Browser may persist (non-secret):** sheet mode, sensitivity, edge offset, feather (localStorage OK; reset-to-default required). Why/flow: `docs/ARCHITECTURE.md` §5. Ciphertext key inventory: `docs/DATA-MODEL.md` settings table. --- ## 5. Woo UAT and create status (Ty locked 2026-08-31) - Store URL: **`WOO_BASE_URL`** from Docker Compose (`https://` only). Intended UAT/POC store is Whidbey Wood Store production; the compose value is the SoT, not a Settings field. - Mid-phase UAT creates: Woo status **draft**, SKU prefix **`SLAB-UAT-*`** - Settings field **`woo_create_status`**: **`draft | publish`**, default **`draft`** - Hard rule: if SKU matches `SLAB-UAT-*`, force **Woo draft** even if Settings say publish - Final POC success: one real (non-UAT) SKU → **Woo publish** only after Ty review - Duplicate SKU → stop; UI maps **409** to the SKU field (edit SKU or open existing) - After successful publish: purge originals + processed images on server Woo draft/publish status is separate from slab lifecycle status (§7). Payload and publish sequence depth: `docs/CONTENT-WOO.md`. Key only: DATA-MODEL `woo_create_status`. --- ## 6. Inference (inside POC, sequenced) - Feature-flagged; **full suite must pass with inference OFF**. - **Gate C** claimable path: inference **OFF**; manual taxonomy + deterministic numbers + Woo draft path. - **Call 1 (vision) / Call 2 (text) only after Gate C is green**, still inside overall POC before "done." - Call 1 auto only if `inference_enabled`; Call 2 never auto-fires (user taps Generate text). - Call 1 body: all inventory photos @1024. Taxonomy lists sent to Call 1 are **exactly the Woo-synced species / attribute sets**. - **Confidence 0.7 (default):** ≥ 0.7 → pre-populate species, wood categories, edge, figure, grade, and feat-* from Call 1 (**mutable**). < 0.7 → those fields stay **empty**. Ready still requires the full named set in §7. Presentation: `docs/UX.md`. - **Taxonomy cache:** `taxonomy_last_sync_at` vs `taxonomy_anchor` (bump only on stored-subset hash change, including deletions). Client re-pulls iff the anchor advanced. `test-woo` always syncs; publish if last_sync >1h. No per-nav sync. No Woo taxonomy timestamp. - Call 2 portable context: default full resend; never require `previous_response_id`. `test-inference` two-turn probe `stateful|stateless|fail`. Fail blocks **Call 2 enablement only**. - Templates inject deterministic numbers. LLM does not invent dimensions. Prompt file mechanics: `docs/PROMPTS.md`. --- ## 7. Slab status machine (app-internal only) `draft → calibrated → ready → publishing → published` (or `failed` with detail). - **calibrated:** mask + axis confirmed; length/thickness/SKU entered; client computed sqft/bdft/widths; draft uploaded. - **ready:** SKU, length, thickness, client sqft/bdft/widths, ≥1 inventory PNG, exactly one species, ≥1 wood category, 1 edge type, ≥1 figure term, ≥1 fig-* tag, ≥1 grade, thickness store band (round-up), 1 moisture (default kiln-dried; not inferred), price. feat-* 0+. Title/description may be typed, generated, or templated at publish. Vision may prefill the taxonomy subset only when confidence ≥ 0.7. - Inference does not gate publish. Below-threshold Call 1 does not prefill; empty mandatory fields block ready. Slab `draft` is separate from Woo draft (`woo_create_status`). --- ## 8. Test and delivery expectations - No feature without a passing test and shown execution output (PR/commit message). - Deterministic core unit-tested before UI consumes it. - One phase = reviewable, shippable increment; Ty exit-gates phases. - Phase and gate naming: follow `docs/IMPL-PLAN.md` only (§0b). - Secrets, real Woo application passwords, and AES keys stay out of the repo. --- ## 9. Deploy sketch - Target: inventoried Docker host. Docker Compose (`frontend` + `fastapi`) + Caddy → `https://${APP_HOSTNAME}` (LAN/Tailscale). - Fill `deploy/INVENTORY.md` before binding ports or merging Caddy (co-resident apps can collide; bolt.diy is one example). - Health: `GET https://${APP_HOSTNAME}/api/health`. - `WOO_BASE_URL` in compose (HTTPS). Settings displays it read-only. - Inference is a remote configurable endpoint, not on the app host by default. Depth: `docs/DEPLOYMENT.md`.