molecule-core/CONTRIBUTING.md
Hongming Wang bfa54e2ee7 docs(CONTRIBUTING): add 'What goes where' section for content routing
Adds a prominent section to CONTRIBUTING.md documenting that public
content (blog, marketing, OG images, SEO briefs, DevRel demos) belongs
in Molecule-AI/docs, not molecule-core. Mirrors the routing cheat-sheet
from #2060 with the table of content-type → target repo, and points
contributors at the existing `Block forbidden paths` CI gate as the
loud-fail signal.

Per the issue: 11 content PRs were silently blocked over 48h before
being closed and redirected. This in-repo notice gives contributors
(human and agent) a discoverable spot to learn the rule before opening
the wrong PR. The CI gate is already enforcing the policy; this just
makes the rule self-service.

Closes #2060

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-29 06:51:30 -07:00

203 lines
7.1 KiB
Markdown

# Contributing to Molecule AI
Thanks for your interest in contributing to Molecule AI! This guide covers the
development workflow, conventions, and how to get your changes merged.
## Getting Started
### Prerequisites
- **Go 1.25+** — platform backend
- **Node.js 20+** — canvas frontend
- **Python 3.11+** — workspace runtime
- **Docker** — infrastructure services (Postgres, Redis)
- **Git** — with hooks path set to `.githooks`
- **jq** — parses `manifest.json` during `setup.sh` to clone the
template/plugin registry. Install via `brew install jq` (macOS) or
`apt install jq` (Debian). Without it, setup.sh prints a note and
leaves the registry dirs empty (recoverable by installing jq and
re-running).
### Setup
```bash
# Clone the repo
git clone https://github.com/Molecule-AI/molecule-core.git
cd molecule-core
# Install git hooks
git config core.hooksPath .githooks
# Copy and edit .env (generate ADMIN_TOKEN + SECRETS_ENCRYPTION_KEY)
cp .env.example .env
# Start infrastructure (Postgres, Redis, Langfuse, Temporal)
./infra/scripts/setup.sh
# Build and run the platform — applies pending migrations on first boot
cd workspace-server
go run ./cmd/server
# In a separate terminal, run the canvas
cd canvas
npm install
npm run dev
```
### Environment Variables
Copy `.env.example` to `.env` and fill in your values:
```bash
cp .env.example .env
```
See `CLAUDE.md` for a full list of environment variables and their purposes.
## What goes where (content vs code)
This repo is scoped to **code** (canvas, workspace, workspace-server, related
infra). Public content (blog posts, marketing copy, OG images, SEO briefs,
DevRel demos) lives in [`Molecule-AI/docs`](https://github.com/Molecule-AI/docs).
The `Block forbidden paths` CI gate fails any PR that writes to `marketing/`
or other removed paths — open against `Molecule-AI/docs` instead.
| Content type | Target |
|---|---|
| Blog posts | `Molecule-AI/docs``content/blog/<YYYY-MM-DD-slug>/` |
| Doc pages | `Molecule-AI/docs``content/docs/` |
| Marketing copy / PMM positioning | `Molecule-AI/docs``marketing/` |
| OG images, visual assets | `Molecule-AI/docs``app/` or `marketing/` |
| SEO briefs | `Molecule-AI/docs``marketing/` |
| DevRel demos (runnable code) | Standalone repo under `Molecule-AI/`, OR embedded in `Molecule-AI/docs` |
| Launch checklists, internal tracking | GitHub Issues — **not** committed files |
| Engineering docs (`docs/adr/`, `docs/architecture/`, `docs/incidents/`) | This repo (internal, not published) |
| Live product pages (e.g. `canvas/src/app/pricing/page.tsx`) | This repo (these are app code, not marketing copy) |
If a PR fails the `Block forbidden paths` check, the contents belong in
`Molecule-AI/docs`. No CI drag, no Canvas E2E, content lands in minutes.
## Development Workflow
### Branch Naming
Use prefixed branches:
- `feat/` — new features
- `fix/` — bug fixes
- `chore/` — maintenance, deps, CI
- `docs/` — documentation only
**Never push directly to `main`.** All changes go through pull requests.
### Commits
Write concise commit messages that focus on the "why":
```
fix(canvas): prevent infinite re-render on WebSocket reconnect
The useEffect dependency array included the entire nodes object,
causing a render loop when any node position changed.
```
### Pull Requests
- Keep PRs focused — one concern per PR
- Include a test plan in the PR description
- PRs are merged with **merge commits** (not squash or rebase)
#### Auto-merge & the "extra commit" trap
**Two system guards protect against pushing commits after auto-merge has been enabled.** Don't try to work around them — they exist because we shipped a half-merged PR on 2026-04-27 (`#2174` merged with only its first commit; the second was orphaned on a branch GitHub had already deleted).
1. **Repo-wide:** "Automatically delete head branches" is on. Once a PR merges, the branch is deleted server-side. Any subsequent `git push` to that branch fails with `remote rejected — no such branch`.
2. **CI:** the `pr-guards` workflow (calling [molecule-ci `disable-auto-merge-on-push`](https://github.com/Molecule-AI/molecule-ci/blob/main/.github/workflows/disable-auto-merge-on-push.yml)) fires on every push to an open PR. If auto-merge was already enabled, it's disabled and a comment is posted. You must explicitly re-enable after verifying the new commit.
**Workflow rules that follow from the guards:**
- Push **all** commits before running `gh pr merge --auto`.
- If you realize you need another commit after enabling auto-merge: push it, then **re-run** `gh pr merge --auto` — the guard will already have disabled it. The disable + re-enable is the verification step.
- For changes that depend on each other across PRs (e.g. a build-script change + a workflow that consumes it), prefer a **stack** of PRs (PR-B branched off PR-A's branch, opened only after PR-A is in queue) over amending one in-flight PR.
### Running Tests
```bash
# Go (platform)
cd workspace-server && go test -race ./...
# Canvas (Next.js)
cd canvas && npm test
# Workspace runtime (Python)
cd workspace && python -m pytest -v
# E2E API tests (requires running platform)
bash tests/e2e/test_api.sh
```
### Pre-commit Hooks
The `.githooks/pre-commit` hook enforces:
- `'use client'` directive on React hook files
- Dark theme only (no white/light CSS classes)
- No SQL injection patterns (`fmt.Sprintf` with SQL)
- No leaked secrets (`sk-ant-`, `ghp_`, `AKIA`)
Fix violations before committing — the hook will reject the commit.
### CI Pipeline
CI runs on GitHub Actions with a self-hosted runner. External contributors:
PRs from forks will not trigger CI automatically. A maintainer will review
and run CI manually.
| Job | What it checks |
|-----|---------------|
| platform-build | Go build + vet + `go test -race` |
| canvas-build | npm build + vitest |
| python-lint | pytest with coverage |
| e2e-api | Full API test suite (62 tests) |
| shellcheck | Shell script linting |
## Code Style
### Go (Platform)
- Standard `gofmt` formatting
- `go vet` must pass
- No `fmt.Sprintf` in SQL queries (use parameterized queries)
- Prefer function injection over import cycles
### TypeScript (Canvas)
- Strict mode enabled
- No `any` types (use `unknown` or proper types)
- Use `ConfirmDialog` component, never native `confirm/alert/prompt`
- Dark theme only — no white/light CSS classes
### Python (Workspace Runtime)
- Type hints on public functions
- pytest for all tests
## Architecture Overview
See `CLAUDE.md` for detailed architecture documentation, including:
- Component diagram (Platform, Canvas, Workspace Runtime)
- Key architectural patterns
- Database schema and migrations
- API route reference
## Reporting Issues
Use GitHub Issues with a clear title and reproduction steps. Include:
- What you expected
- What actually happened
- Platform/OS version
- Relevant logs or screenshots
## Security
If you discover a security vulnerability, please report it privately via
GitHub Security Advisories rather than opening a public issue.
## License
By contributing, you agree that your contributions will be licensed under the
same [Business Source License 1.1](LICENSE) that covers this project.