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Co-authored-by: vickydotbat <vickydotbat@tutamail.com>
Co-committed-by: vickydotbat <vickydotbat@tutamail.com>
2026-06-25 09:29:39 +00:00

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---
description: sow-tools / Crucible — the build/conversion/sync toolchain repo.
alwaysApply: true
---
# sow-tools / Crucible Agent Guide
This repo owns the **builder logic:** one Go module
(`git.westgate.pw/ShadowsOverWestgate/sow-tools`) producing the `crucible`
dispatcher and the `crucible-<name>` binaries.
## What this repo owns / does not own
Owns: build/extract/validate/compare pipeline, ERF/HAK packing, topdata 2da/tlk
compilation, wiki rendering/deploy, depot blob verify, changelog. Does **not**
own authored game content (that is `sow-module` /
`sow-topdata` / `sow-assets-manifest`) or any production deploy authority (that
is `sow-platform`).
## Rules
1. **Fail closed, never fake.** A builder with no migrated logic yet (`depot`)
exits `70`. Do not stub a builder to emit a placeholder artifact.
2. **Binaries are not committed.** They are CI artifacts / image layers.
`/bin/`, `*.exe`, `nwn-tool`, `sow-toolkit` are gitignored.
3. **The registry is the command surface.** `internal/dispatch.Registry` is the
single source of truth; keep it in sync with `cmd/` and
[`docs/command-surface.md`](docs/command-surface.md). Adding a builder = a
`cmd/crucible-<name>/main.go` shim + a `Registry` entry + a doc row.
## Wiring a builder
1. Ensure the relevant `internal/` package(s) cover the work.
2. Add tests; keep outputs deterministic (same input → same bytes).
3. `make check` must stay green; update `make smoke` to expect the wired exit.
## Commands
```bash
nix develop && make check # vet + test + shellcheck + yamllint
make build # cmd/* -> ./bin
make smoke # assert fail-closed contract
make image # crucible:<sha>
```
## Tests
Tests must survive harmless changes to constants, defaults, wording, ordering, fixture data, and internal implementation details. A test that fails merely because a basic value changed is usually a bad test. Only assert exact values when the value is part of a documented public contract, external protocol, compatibility requirement, security rule, migration, or business rule.