documentation

Business

Feature documentation and release notes patterns. Use when documenting changes, writing PR descriptions, or preparing releases.

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Source SKILL.md: https://github.com/comet-ml/opik/blob/HEAD/.agents/skills/documentation/SKILL.md

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Documentation

PR Description

## Summary
- What this PR does (bullet points)

## Test Plan
- How to verify it works

## Related Issues
- Resolves #123

Changelog Entry

### [VERSION] - [DATE]

#### New Features
- **Feature Name**: Brief description

#### Improvements
- **Improvement**: What changed and why

#### Bug Fixes
- **Fix**: What was broken (#issue)

#### Breaking Changes
- **Change**: What breaks, migration steps

Feature Documentation

When documenting a feature, cover:

User Impact

What capability does this add?
How do users access it?

Technical Changes

API changes (endpoints, params)
SDK changes (new methods)
Database migrations
Config changes

Breaking Changes (if any)

What breaks
Migration steps

Key Files

CHANGELOG.md - Self-hosted deployment changelog (breaking/critical changes only)
apps/opik-documentation/documentation/fern/docs/changelog/ - Main product docs changelog entries (dated .mdx files)
apps/opik-documentation/documentation/fern/docs/agent_optimization/getting_started/changelog.mdx - Agent Optimizer release changelog
apps/opik-documentation/documentation/fern/docs.yml - Docs routing/navigation source of truth for changelog surfaces
.github/release-drafter.yml - Release template

Changelog Routing Rules

Pick the changelog target by scope; do not default everything to root CHANGELOG.md.
Use CHANGELOG.md only for self-hosted deployment breaking/critical/security-impacting notes.
Use apps/opik-documentation/documentation/fern/docs/changelog/*.mdx for general Opik product release notes shown in /docs/opik/changelog.
Use apps/opik-documentation/documentation/fern/docs/agent_optimization/getting_started/changelog.mdx for Agent Optimizer version updates (for example sdks/opik_optimizer releases like 3.1.0).
Liquibase changelog.xml files are migration manifests, not user-facing release-note changelogs.
If unsure where an entry belongs, confirm the surface from apps/opik-documentation/documentation/fern/docs.yml before editing.

Images in documentation

Use fern/img for documentation images (e.g. apps/opik-documentation/documentation/fern/img/...).
Do not use static/img for new assets; it is a legacy folder used by external integrations and cannot be deleted.
Reference images in docs as /img/... (e.g. /img/tracing/openai_integration.png).
In repos that define docs.yaml/docs.yml, treat that file as the routing source of truth; do not assume URLs mirror directory layout.

Internationalized READMEs

Non-English README files (readme_CN.md, readme_JP.md, readme_KO.md, readme_PT_BR.md) are AI machine-translated from the English README.md.

Each non-English README must have a notice at the top (as a blockquote) warning that the file is AI-translated and welcoming improvements.
When the English README is updated with significant content changes, re-translate the affected non-English READMEs using AI and update accordingly.
Do not manually edit translated READMEs for content changes; update the English source and re-translate.