-1. Prior Work Check    -> BLOCKING: Check for existing issues/PRs
0.  CONTRIBUTING.md     -> MANDATORY: Find contribution guidelines
1.  Repository Setup    -> Clone/identify upstream repo
2.  Guidelines Analysis -> Templates, CODE_OF_CONDUCT
3.  PR Archaeology      -> Analyze merged PRs, commit patterns
4.  Maintainer Research -> Response patterns, review expectations
5.  Issue Discovery     -> Find contribution opportunities
6.  Output              -> Write research document

# Search for open issues on this topic
gh issue list -R <owner/repo> --state open --search "<topic keywords>" --limit 20

# Search for open PRs that might address this
gh pr list -R <owner/repo> --state open --search "<topic keywords>" --limit 20

# Check for recently merged PRs (might already be fixed)
gh pr list -R <owner/repo> --state merged --search "<topic keywords>" --limit 10

# Check all common locations
cat CONTRIBUTING.md 2>/dev/null
cat .github/CONTRIBUTING.md 2>/dev/null
cat docs/CONTRIBUTING.md 2>/dev/null

# Check README for contribution section
grep -i "contribut" README.md | head -10

# List recent merged PRs
gh pr list --state merged --limit 20

# Recent commit style
git log --oneline -30 | head -20

# Check for conventional commits
git log --oneline -30 | grep -E "^[a-f0-9]+ (feat|fix|docs|refactor|test|chore)(\(.*\))?:"

# Find beginner-friendly issues
gh issue list --label "good first issue" --state open
gh issue list --label "help wanted" --state open

# Issues with no assignee
gh issue list --state open --json assignees,title,number | \
  jq -r '.[] | select(.assignees | length == 0) | "#\(.number): \(.title)"' | head -10

# PR Research: {repo-name}

## Executive Summary
{2-3 sentences: project health, contribution friendliness}

## Contribution Guidelines
| Document | Status | Key Requirements |
|----------|--------|------------------|
| CONTRIBUTING.md | Present/Missing | {summary} |
| PR Template | Present/Missing | {required sections} |

## PR Patterns
- **Average size**: X files, Y lines
- **Commit style**: {conventional/imperative/etc}
- **Review time**: ~X days

## Contribution Opportunities
| Issue | Type | Difficulty |
|-------|------|------------|
| #N | bug/feat | easy/medium |

## Next Steps
-> `$pr-plan .agents/research/YYYY-MM-DD-pr-{repo}.md`

$pr-research <repo> -> $pr-plan <research> -> implement -> $pr-prep