Contributing Guide

Thank you for considering contributing to Observal. Contributions of all kinds are welcome: bug reports, bug fixes, new features, documentation improvements, and tests.

[!TIP] This page is a quick-start summary. For the full setup walkthrough, architecture notes, and detailed workflows, see the Development Guide. For new Python tests, follow the Testing Guide. Reviewers and maintainers must follow the Code Review Standard.

[!IMPORTANT] Discord is our primary communication channel. Join at discord.observal.io and ask questions in #contributing, report bugs in #bug, or discuss ideas in #feature-requests. GitHub issues and PRs are for concrete, actionable items, not exploratory discussion.

Please read our Code of Conduct and AI Policy before contributing.

Parts of this guide were inspired by the contributing documentation from AnkiDroid/Anki-Android. They set a great standard for OSS contributor docs and were one of the first open-source projects some of our maintainers were part of. If you are looking for another welcoming OSS project, check them out.

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Table of Contents

• Getting Started
• Finding Work
• Making Changes
• Submitting a Pull Request
• Code Review Standard
• Reporting Issues
• License
• CLA

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Getting Started

Prerequisites

• Docker and Docker Compose
• uv (Python 3.11+)
• Node.js 20+ and pnpm (for the web frontend)
• Git

Fork and Clone

git clone https://github.com/YOUR-USERNAME/Observal.git
cd Observal
git remote add upstream https://github.com/Observal/Observal.git

Running Locally

No configuration needed for local development. All settings have working defaults.

Full stack (Docker):

cp .env.example .env
make rebuild-fast

For normal backend, frontend, and dependency changes, use make rebuild-fast. It builds the shared API image once, reuses it for the API, init, and worker services, then builds the web image.

Use make rebuild when the Compose topology changes, such as adding services, changing build contexts, changing image names, or updating volumes and networks.

For schema, migration, ClickHouse setup, init path, or worker changes, use make rebuild-fast so the shared API image used by observal-init and observal-worker is refreshed.

Wait for services to be healthy, then:

uv tool install --editable .
observal auth login

The stack starts at http://localhost (nginx LB on port 80). The .env.example seeds demo accounts on first startup, log in with [e-mail] / super-changeme for admin access. See SETUP.md for all credentials.

Frontend only:

cd web && pnpm install && pnpm dev

Set NEXT_PUBLIC_API_URL=http://localhost in web/.env.local if the backend is on a different host.

[!NOTE] See the Development Guide for the full environment setup and troubleshooting steps.

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Finding Work

Check open issues before starting. Look for good first issue if you are new.

For larger changes, open an issue or discuss in #contributing on Discord before writing code.

Claiming Issues

• /take on any good first issue or help wanted issue to self-assign.
• /drop to release an issue you can no longer work on.
• Max 2 open assigned issues at a time.
• Issues with no activity for 30 days are automatically unassigned.

[!WARNING] Issues labeled keep open cannot be claimed. Anyone may submit a PR for those without assignment.

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Making Changes

Branch Naming

feature/skill-registry
fix/clickhouse-insert-timeout
docs/update-setup-guide

Never commit directly to main.

Code Style

make hooks     # install pre-commit hooks (do this first)
make format    # auto-format Python and TypeScript
make lint      # run all linters

Python is formatted with ruff. Dockerfiles with hadolint. Pre-commit hooks enforce both.

SPDX Headers

Every source file needs SPDX headers. The pre-commit hook adds them automatically.

# SPDX-FileCopyrightText: 2026 Your Name <[e-mail]>
# SPDX-License-Identifier: Apache-2.0

Use // for TypeScript, <!-- --> for Markdown. CI will block merge if any file is missing headers.

Testing

make test      # quick
make test-v    # verbose

All tests must pass before submitting. Tests mock all external services so Docker is not required. Include tests for any feature or bug fix.

New Python tests should follow the Testing Guide. In short, keep tests hermetic, assert behavior over implementation details, use small local helpers for setup, and avoid touching real user configuration.

Commit Messages

Follow Conventional Commits:

feat(cli): add skill submit command
fix(telemetry): handle null span timestamps
docs: update contributing guide

Subject line under 72 characters, imperative mood, no trailing period.

Changelog

Add an entry under [Unreleased] in CHANGELOG.md for any user-facing change.

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Submitting a Pull Request

[!IMPORTANT] Read the AI Policy before submitting. AI-assisted contributions are welcome but must meet the standards described there. Autonomous coding agents (Devin, SWE-agent, OpenHands, and similar tools that write and submit code without meaningful human authorship) are not permitted, see the AI Policy for the legal and practical reasons. PRs that show obvious signs of unreviewed AI output will be closed without review.

1. Rebase against main before opening:

   git fetch upstream && git rebase upstream/main

2. Push your branch and open a PR against main.
3. Fill in the PR template completely. PRs with unfilled or placeholder sections will be closed.
4. Ensure CI passes (linters, tests, docker build).
5. Add a changelog entry if your change is user-facing.
6. Respond to review feedback promptly.

Keep PRs focused on a single concern. Smaller PRs are easier to review and faster to merge.

All pull requests are evaluated under the Code Review Standard. It defines reviewer responsibilities, required approvals, review freshness, merge gates, and the conditions that require changes or rejection.

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Reporting Issues

Bugs

Search existing issues first. Include:

• Steps to reproduce
• Expected vs actual behaviour
• OS, Python, Node.js, Docker versions
• Error logs or screenshots

Feature Requests

Describe the problem you are solving, not just the solution. Discuss in #feature-requests on Discord first for larger features.

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License

All code is licensed under Apache-2.0.

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Contributor License Agreement (CLA)

The CLA-assistant bot will prompt you to sign the Observal CLA on your first PR. You only need to sign once. For corporate contributions, contact [e-mail].