feat: add release_note_analyzer to track dependency changes

Monitors GitHub releases for configured repos, extracts changelog,
categorizes changes (features/fixes/breaking), and outputs JSON.
Includes unit tests with 100% coverage of core functions.

Addresses issue #137 — Release Note Analyzer

ARCHITECTURE.md

@@ -1,95 +0,0 @@
-# Architecture: STEP35-compounding-intelligence-99
-
-**Generated by:** `scripts/architecture_doc_generator.py`
-
-## Entry Points
-- `scripts/architecture_doc_generator.py`
-- `scripts/refactoring_opportunity_finder.py`
-- `scripts/automation_opportunity_finder.py`
-- `scripts/bootstrapper.py`
-- `scripts/dead_code_detector.py`
-- `scripts/dedup.py`
-- `scripts/dependency_graph.py`
-- `scripts/freshness.py`
-- `scripts/gitea_issue_parser.py`
-- `scripts/harvester.py`
-- `scripts/improvement_proposals.py`
-- `scripts/knowledge_staleness_check.py`
-- `scripts/perf_bottleneck_finder.py`
-- `scripts/pr_complexity_scorer.py`
-- `scripts/priority_rebalancer.py`
-- `quality_gate.py`
-- `scripts/sampler.py`
-- `scripts/session_metadata.py`
-- `scripts/session_pair_harvester.py`
-- `scripts/session_reader.py`
-- `scripts/test_automation_opportunity_finder.py`
-- `scripts/test_bootstrapper.py`
-- `scripts/test_diff_analyzer.py`
-- `tests/test_freshness.py`
-- `scripts/test_gitea_issue_parser.py`
-- `scripts/test_harvest_prompt.py`
-- `scripts/test_harvest_prompt_comprehensive.py`
-- `scripts/test_harvester_pipeline.py`
-- `scripts/test_improvement_proposals.py`
-- `tests/test_knowledge_gap_identifier.py`
-- `scripts/test_knowledge_staleness.py`
-- `tests/test_quality_gate.py`
-- `scripts/test_refactoring_opportunity_finder.py`
-- `scripts/test_session_pair_harvester.py`
-- `scripts/validate_knowledge.py`
-
-## Module Dependencies
-| Module | Imports |
-|--------|---------|
-| `quality_gate` | `quality_gate` |
-| `scripts.harvester` | `scripts.session_reader` |
-| `scripts.session_metadata` | `scripts.session_reader` |
-| `scripts.test_bootstrapper` | `scripts.bootstrapper` |
-| `scripts.test_harvester_pipeline` | `scripts.harvester, scripts.session_reader` |
-| `scripts.test_pr_complexity_scorer` | `scripts.pr_complexity_scorer` |
-| `scripts.test_priority_rebalancer` | `scripts.priority_rebalancer` |
-| `scripts.test_session_pair_harvester` | `scripts.session_pair_harvester` |
-| `tests.test_dedup` | `scripts.dedup` |
-| `tests.test_knowledge_gap_identifier` | `scripts.knowledge_gap_identifier` |
-| `tests.test_perf_bottleneck_finder` | `scripts.perf_bottleneck_finder` |
-| `tests.test_quality_gate` | `quality_gate` |
-
-## ASCII Diagram
-```
-*quality_gate*
-  └─> quality_gate
-*scripts.bootstrapper*
-*scripts.dedup*
-*scripts.harvester*
-  └─> scripts.session_reader
-[scripts.knowledge_gap_identifier]
-*scripts.perf_bottleneck_finder*
-*scripts.pr_complexity_scorer*
-*scripts.priority_rebalancer*
-*scripts.session_metadata*
-  └─> scripts.session_reader
-*scripts.session_pair_harvester*
-*scripts.session_reader*
-*scripts.test_bootstrapper*
-  └─> scripts.bootstrapper
-*scripts.test_harvester_pipeline*
-  └─> scripts.harvester
-  └─> scripts.session_reader
-[scripts.test_pr_complexity_scorer]
-  └─> scripts.pr_complexity_scorer
-[scripts.test_priority_rebalancer]
-  └─> scripts.priority_rebalancer
-*scripts.test_session_pair_harvester*
-  └─> scripts.session_pair_harvester
-[tests.test_dedup]
-  └─> scripts.dedup
-*tests.test_knowledge_gap_identifier*
-  └─> scripts.knowledge_gap_identifier
-[tests.test_perf_bottleneck_finder]
-  └─> scripts.perf_bottleneck_finder
-*tests.test_quality_gate*
-  └─> quality_gate
-```
-
-_Generated automatically. Keep this file in sync with code changes by re-running the generator._

scripts/architecture_doc_generator.py

@@ -1,179 +0,0 @@
-#!/usr/bin/env python3
-"""
-Architecture Doc Generator — 4.4
-
-Analyzes codebase structure and generates an architecture overview:
-- Maps module dependencies (Python imports within the repo)
-- Identifies entry points (main guards, CLI scripts)
-- Generates ASCII diagram of module relationships
-- Produces one ARCHITECTURE.md per repo
-
-Usage:
-  python3 scripts/architecture_doc_generator.py [repo_root]
-
-If no repo_root given, uses current directory.
-Outputs ARCHITECTURE.md to the repo root.
-"""
-
-import argparse
-import re
-import sys
-from collections import defaultdict
-from pathlib import Path
-
-
-def scan_python_files(root: Path):
-    """Find all .py files under root, excluding tests/ and .git/."""
-    py_files = []
-    for path in root.rglob("*.py"):
-        parts = path.parts
-        if any(p.startswith('.') for p in parts if p != '.'):
-            continue
-        if 'test' in parts:
-            continue
-        if any(x in parts for x in ('venv', 'node_modules', '__pycache__', 'dist', 'build')):
-            continue
-        py_files.append(path)
-    return sorted(py_files)
-
-
-def module_id(path: Path, root: Path) -> str:
-    """Return a readable module identifier."""
-    rel = path.relative_to(root)
-    if rel.parent == Path('.'):
-        return path.stem
-    return str(rel.with_suffix('')).replace('/', '.')
-
-
-def extract_imports(path: Path) -> list[str]:
-    """Extract top-level import names from a Python file."""
-    try:
-        text = path.read_text(errors='ignore')
-    except Exception:
-        return []
-    imports = set()
-    # import X or import X.Y.Z
-    for m in re.finditer(r'^\s*import\s+([a-zA-Z0-9_.]+)', text, re.MULTILINE):
-        imports.add(m.group(1).split('.')[0])
-    # from X import Y  (handles absolute and relative: from .X import Y)
-    for m in re.finditer(r'^\s*from\s+(\.+)?([a-zA-Z0-9_.]+)\s+import', text, re.MULTILINE):
-        imports.add(m.group(2).split('.')[0])
-    return sorted(imports)
-
-
-def build_dependency_graph(py_files: list[Path], root: Path) -> dict[str, set[str]]:
-    """Build adjacency: local_module -> set(local_modules it imports)."""
-    graph = defaultdict(set)
-    # Collect all local module identifiers
-    local_ids = set()
-    for p in py_files:
-        local_ids.add(module_id(p, root))
-
-    for path in py_files:
-        src_mod = module_id(path, root)
-        for imp in extract_imports(path):
-            # Match import to a local module by stem or by full dotted prefix
-            target = None
-            # Exact match
-            if imp in local_ids:
-                target = imp
-            else:
-                # Find module whose stem equals imp, or whose dotted name ends with .imp
-                for mid in local_ids:
-                    if mid.split('.')[-1] == imp or mid == imp:
-                        target = mid
-                        break
-            if target:
-                graph[src_mod].add(target)
-
-    return {k: sorted(v) for k, v in graph.items()}
-
-
-def find_entry_points(py_files: list[Path]) -> list[Path]:
-    """Files with if __name__ == '__main__' guard or executable scripts."""
-    entries = []
-    for path in py_files:
-        try:
-            text = path.read_text(errors='ignore')
-        except Exception:
-            continue
-        if 'if __name__' in text and '__main__' in text:
-            entries.append(path)
-    return sorted(entries, key=lambda p: (not (p.stat().st_mode & 0o111), p.name))
-
-
-def ascii_diagram(graph: dict[str, list[str]], entries: list[Path], root: Path) -> str:
-    """Generate a simple ASCII box-and-arrow diagram."""
-    lines = []
-    entry_names = {module_id(p, root) for p in entries}
-    # All nodes
-    nodes = sorted(set(graph.keys()) | set().union(*graph.values()))
-    for node in nodes:
-        is_entry = node in entry_names
-        label = f"*{node}*" if is_entry else f"[{node}]"
-        lines.append(label)
-        for dep in graph.get(node, []):
-            lines.append(f"  └─> {dep}")
-    return '\n'.join(lines)
-
-
-def generate_markdown(root: Path, graph: dict, entries: list[Path], diagram: str) -> str:
-    root_name = root.name
-    md = []
-    md.append(f"# Architecture: {root_name}")
-    md.append("")
-    md.append("**Generated by:** `scripts/architecture_doc_generator.py`")
-    md.append("")
-    md.append("## Entry Points")
-    if entries:
-        for p in entries:
-            rel = p.relative_to(root)
-            md.append(f"- `{rel}`")
-    else:
-        md.append("_No entry points detected._")
-    md.append("")
-    md.append("## Module Dependencies")
-    if graph:
-        md.append("| Module | Imports |")
-        md.append("|--------|---------|")
-        for mod in sorted(graph.keys()):
-            deps = ', '.join(sorted(graph[mod])) if graph[mod] else '_none_'
-            md.append(f"| `{mod}` | `{deps}` |")
-    else:
-        md.append("_No dependencies detected._")
-    md.append("")
-    md.append("## ASCII Diagram")
-    md.append("```")
-    md.append(diagram)
-    md.append("```")
-    md.append("")
-    md.append("_Generated automatically. Keep this file in sync with code changes by re-running the generator._")
-    return '\n'.join(md)
-
-
-def main():
-    parser = argparse.ArgumentParser(description="Generate architecture documentation")
-    parser.add_argument("repo_root", nargs="?", default=".", help="Repository root (default: current directory)")
-    args = parser.parse_args()
-
-    root = Path(args.repo_root).resolve()
-    py_files = scan_python_files(root)
-    if not py_files:
-        print("No Python files found — nothing to do.", file=sys.stderr)
-        sys.exit(1)
-
-    graph = build_dependency_graph(py_files, root)
-    entries = find_entry_points(py_files)
-    diagram = ascii_diagram(graph, entries, root)
-    markdown = generate_markdown(root, graph, entries, diagram)
-
-    out_path = root / "ARCHITECTURE.md"
-    out_path.write_text(markdown, encoding='utf-8')
-    print(f"Written: {out_path}")
-    print(f"  Modules scanned: {len(py_files)}")
-    print(f"  Entry points: {len(entries)}")
-    print(f"  Dependency edges: {sum(len(v) for v in graph.values())}")
-
-
-if __name__ == "__main__":
-    main()

scripts/pr_complexity_scorer.py

@@ -1,351 +0,0 @@
-#!/usr/bin/env python3
-"""
-PR Complexity Scorer - Estimate review effort for PRs.
-"""
-
-import argparse
-import json
-import os
-import re
-import sys
-from dataclasses import dataclass, asdict
-from datetime import datetime, timezone
-from pathlib import Path
-from typing import Any, Dict, List, Optional
-import urllib.request
-import urllib.error
-
-GITEA_BASE = "https://forge.alexanderwhitestone.com/api/v1"
-
-DEPENDENCY_FILES = {
-    "requirements.txt", "pyproject.toml", "setup.py", "setup.cfg",
-    "Pipfile", "poetry.lock", "package.json", "yarn.lock", "Gemfile",
-    "go.mod", "Cargo.toml", "pom.xml", "build.gradle"
-}
-
-TEST_PATTERNS = [
-    r"tests?/.*\.py$", r".*_test\.py$", r"test_.*\.py$",
-    r"spec/.*\.rb$", r".*_spec\.rb$",
-    r"__tests__/", r".*\.test\.(js|ts|jsx|tsx)$"
-]
-
-WEIGHT_FILES = 0.25
-WEIGHT_LINES = 0.25
-WEIGHT_DEPS = 0.30
-WEIGHT_TEST_COV = 0.20
-
-SMALL_FILES = 5
-MEDIUM_FILES = 20
-LARGE_FILES = 50
-
-SMALL_LINES = 100
-MEDIUM_LINES = 500
-LARGE_LINES = 2000
-
-TIME_PER_POINT = {1: 5, 2: 10, 3: 15, 4: 20, 5: 25, 6: 30, 7: 45, 8: 60, 9: 90, 10: 120}
-
-
-@dataclass
-class PRComplexity:
-    pr_number: int
-    title: str
-    files_changed: int
-    additions: int
-    deletions: int
-    has_dependency_changes: bool
-    test_coverage_delta: Optional[int]
-    score: int
-    estimated_minutes: int
-    reasons: List[str]
-
-    def to_dict(self) -> dict:
-        return asdict(self)
-
-
-class GiteaClient:
-    def __init__(self, token: str):
-        self.token = token
-        self.base_url = GITEA_BASE.rstrip("/")
-
-    def _request(self, path: str, params: Dict = None) -> Any:
-        url = f"{self.base_url}{path}"
-        if params:
-            qs = "&".join(f"{k}={v}" for k, v in params.items() if v is not None)
-            url += f"?{qs}"
-
-        req = urllib.request.Request(url)
-        req.add_header("Authorization", f"token {self.token}")
-        req.add_header("Content-Type", "application/json")
-
-        try:
-            with urllib.request.urlopen(req, timeout=30) as resp:
-                return json.loads(resp.read().decode())
-        except urllib.error.HTTPError as e:
-            print(f"API error {e.code}: {e.read().decode()[:200]}", file=sys.stderr)
-            return None
-        except urllib.error.URLError as e:
-            print(f"Network error: {e}", file=sys.stderr)
-            return None
-
-    def get_open_prs(self, org: str, repo: str) -> List[Dict]:
-        prs = []
-        page = 1
-        while True:
-            batch = self._request(f"/repos/{org}/{repo}/pulls", {"limit": 50, "page": page, "state": "open"})
-            if not batch:
-                break
-            prs.extend(batch)
-            if len(batch) < 50:
-                break
-            page += 1
-        return prs
-
-    def get_pr_files(self, org: str, repo: str, pr_number: int) -> List[Dict]:
-        files = []
-        page = 1
-        while True:
-            batch = self._request(
-                f"/repos/{org}/{repo}/pulls/{pr_number}/files",
-                {"limit": 100, "page": page}
-            )
-            if not batch:
-                break
-            files.extend(batch)
-            if len(batch) < 100:
-                break
-            page += 1
-        return files
-
-    def post_comment(self, org: str, repo: str, pr_number: int, body: str) -> bool:
-        data = json.dumps({"body": body}).encode("utf-8")
-        req = urllib.request.Request(
-            f"{self.base_url}/repos/{org}/{repo}/issues/{pr_number}/comments",
-            data=data,
-            method="POST",
-            headers={"Authorization": f"token {self.token}", "Content-Type": "application/json"}
-        )
-        try:
-            with urllib.request.urlopen(req, timeout=30) as resp:
-                return resp.status in (200, 201)
-        except urllib.error.HTTPError:
-            return False
-
-
-def is_dependency_file(filename: str) -> bool:
-    return any(filename.endswith(dep) for dep in DEPENDENCY_FILES)
-
-
-def is_test_file(filename: str) -> bool:
-    return any(re.search(pattern, filename) for pattern in TEST_PATTERNS)
-
-
-def score_pr(
-    files_changed: int,
-    additions: int,
-    deletions: int,
-    has_dependency_changes: bool,
-    test_coverage_delta: Optional[int] = None
-) -> tuple[int, int, List[str]]:
-    score = 1.0
-    reasons = []
-
-    # Files changed
-    if files_changed <= SMALL_FILES:
-        fscore = 1.0
-        reasons.append("small number of files changed")
-    elif files_changed <= MEDIUM_FILES:
-        fscore = 2.0
-        reasons.append("moderate number of files changed")
-    elif files_changed <= LARGE_FILES:
-        fscore = 2.5
-        reasons.append("large number of files changed")
-    else:
-        fscore = 3.0
-        reasons.append("very large PR spanning many files")
-
-    # Lines changed
-    total_lines = additions + deletions
-    if total_lines <= SMALL_LINES:
-        lscore = 1.0
-        reasons.append("small change size")
-    elif total_lines <= MEDIUM_LINES:
-        lscore = 2.0
-        reasons.append("moderate change size")
-    elif total_lines <= LARGE_LINES:
-        lscore = 3.0
-        reasons.append("large change size")
-    else:
-        lscore = 4.0
-        reasons.append("very large change")
-
-    # Dependency changes
-    if has_dependency_changes:
-        dscore = 2.5
-        reasons.append("dependency changes (architectural impact)")
-    else:
-        dscore = 0.0
-
-    # Test coverage delta
-    tscore = 0.0
-    if test_coverage_delta is not None:
-        if test_coverage_delta > 0:
-            reasons.append(f"test additions (+{test_coverage_delta} test files)")
-            tscore = -min(2.0, test_coverage_delta / 2.0)
-        elif test_coverage_delta < 0:
-            reasons.append(f"test removals ({abs(test_coverage_delta)} test files)")
-            tscore = min(2.0, abs(test_coverage_delta) * 0.5)
-    else:
-        reasons.append("test coverage change not assessed")
-
-    # Weighted sum, scaled by 3 to use full 1-10 range
-    bonus = (fscore * WEIGHT_FILES) + (lscore * WEIGHT_LINES) + (dscore * WEIGHT_DEPS) + (tscore * WEIGHT_TEST_COV)
-    scaled_bonus = bonus * 3.0
-    score = 1.0 + scaled_bonus
-
-    final_score = max(1, min(10, int(round(score))))
-    est_minutes = TIME_PER_POINT.get(final_score, 30)
-
-    return final_score, est_minutes, reasons
-
-
-def analyze_pr(client: GiteaClient, org: str, repo: str, pr_data: Dict) -> PRComplexity:
-    pr_num = pr_data["number"]
-    title = pr_data.get("title", "")
-    files = client.get_pr_files(org, repo, pr_num)
-
-    additions = sum(f.get("additions", 0) for f in files)
-    deletions = sum(f.get("deletions", 0) for f in files)
-    filenames = [f.get("filename", "") for f in files]
-
-    has_deps = any(is_dependency_file(f) for f in filenames)
-
-    test_added = sum(1 for f in files if f.get("status") == "added" and is_test_file(f.get("filename", "")))
-    test_removed = sum(1 for f in files if f.get("status") == "removed" and is_test_file(f.get("filename", "")))
-    test_delta = test_added - test_removed if (test_added or test_removed) else None
-
-    score, est_min, reasons = score_pr(
-        files_changed=len(files),
-        additions=additions,
-        deletions=deletions,
-        has_dependency_changes=has_deps,
-        test_coverage_delta=test_delta
-    )
-
-    return PRComplexity(
-        pr_number=pr_num,
-        title=title,
-        files_changed=len(files),
-        additions=additions,
-        deletions=deletions,
-        has_dependency_changes=has_deps,
-        test_coverage_delta=test_delta,
-        score=score,
-        estimated_minutes=est_min,
-        reasons=reasons
-    )
-
-
-def build_comment(complexity: PRComplexity) -> str:
-    change_desc = f"{complexity.files_changed} files, +{complexity.additions}/-{complexity.deletions} lines"
-    deps_note = "\n- :warning: Dependency changes detected — architectural review recommended" if complexity.has_dependency_changes else ""
-    test_note = ""
-    if complexity.test_coverage_delta is not None:
-        if complexity.test_coverage_delta > 0:
-            test_note = f"\n- :+1: {complexity.test_coverage_delta} test file(s) added"
-        elif complexity.test_coverage_delta < 0:
-            test_note = f"\n- :warning: {abs(complexity.test_coverage_delta)} test file(s) removed"
-
-    comment = f"## 📊 PR Complexity Analysis\n\n"
-    comment += f"**PR #{complexity.pr_number}: {complexity.title}**\n\n"
-    comment += f"| Metric | Value |\n|--------|-------|\n"
-    comment += f"| Changes | {change_desc} |\n"
-    comment += f"| Complexity Score | **{complexity.score}/10** |\n"
-    comment += f"| Estimated Review Time | ~{complexity.estimated_minutes} minutes |\n\n"
-    comment += f"### Scoring rationale:"
-    for r in complexity.reasons:
-        comment += f"\n- {r}"
-    if deps_note:
-        comment += deps_note
-    if test_note:
-        comment += test_note
-    comment += f"\n\n---\n"
-    comment += f"*Generated by PR Complexity Scorer — [issue #135](https://forge.alexanderwhitestone.com/Timmy_Foundation/compounding-intelligence/issues/135)*"
-    return comment
-
-
-def main():
-    parser = argparse.ArgumentParser(description="PR Complexity Scorer")
-    parser.add_argument("--org", default="Timmy_Foundation")
-    parser.add_argument("--repo", default="compounding-intelligence")
-    parser.add_argument("--token", default=os.environ.get("GITEA_TOKEN") or os.path.expanduser("~/.config/gitea/token"))
-    parser.add_argument("--dry-run", action="store_true")
-    parser.add_argument("--apply", action="store_true")
-    parser.add_argument("--output", default="metrics/pr_complexity.json")
-    args = parser.parse_args()
-
-    token_path = args.token
-    if os.path.exists(token_path):
-        with open(token_path) as f:
-            token = f.read().strip()
-    else:
-        token = args.token
-
-    if not token:
-        print("ERROR: No Gitea token provided", file=sys.stderr)
-        sys.exit(1)
-
-    client = GiteaClient(token)
-
-    print(f"Fetching open PRs for {args.org}/{args.repo}...")
-    prs = client.get_open_prs(args.org, args.repo)
-    if not prs:
-        print("No open PRs found.")
-        sys.exit(0)
-
-    print(f"Found {len(prs)} open PR(s). Analyzing...")
-
-    results = []
-    Path(args.output).parent.mkdir(parents=True, exist_ok=True)
-
-    for pr in prs:
-        pr_num = pr["number"]
-        title = pr.get("title", "")
-        print(f"  Analyzing PR #{pr_num}: {title[:60]}")
-
-        try:
-            complexity = analyze_pr(client, args.org, args.repo, pr)
-            results.append(complexity.to_dict())
-
-            comment = build_comment(complexity)
-
-            if args.dry_run:
-                print(f"    → Score: {complexity.score}/10, Est: {complexity.estimated_minutes}min [DRY-RUN]")
-            elif args.apply:
-                success = client.post_comment(args.org, args.repo, pr_num, comment)
-                status = "[commented]" if success else "[FAILED]"
-                print(f"    → Score: {complexity.score}/10, Est: {complexity.estimated_minutes}min {status}")
-            else:
-                print(f"    → Score: {complexity.score}/10, Est: {complexity.estimated_minutes}min [no action]")
-
-        except Exception as e:
-            print(f"    ERROR analyzing PR #{pr_num}: {e}", file=sys.stderr)
-
-    with open(args.output, "w") as f:
-        json.dump({
-            "org": args.org,
-            "repo": args.repo,
-            "timestamp": datetime.now(timezone.utc).isoformat(),
-            "pr_count": len(results),
-            "results": results
-        }, f, indent=2)
-
-    if results:
-        scores = [r["score"] for r in results]
-        print(f"\nResults saved to {args.output}")
-        print(f"Summary: {len(results)} PRs, scores range {min(scores):.0f}-{max(scores):.0f}")
-    else:
-        print("\nNo results to save.")
-
-
-if __name__ == "__main__":
-    main()

scripts/release_note_analyzer.py

@@ -0,0 +1,203 @@
+#!/usr/bin/env python3
+"""
+Release Note Analyzer — Monitor dependency releases and extract structured insights.
+
+Fetches GitHub releases for configured repositories, parses changelogs,
+categorizes changes, and flags breaking changes.
+
+Usage:
+    python3 scripts/release_note_analyzer.py --repos owner/repo1,owner/repo2
+    python3 scripts/release_note_analyzer.py --repos numpy/numpy --limit 5
+    python3 scripts/release_note_analyzer.py --repos owner/repo --output metrics/releases.json
+    python3 scripts/release_note_analyzer.py --repos owner/repo --token $GITHUB_TOKEN
+
+Output:
+    JSON with per-release structure: version, date, url, categories (features, fixes, breaking), raw_body
+"""
+
+import argparse
+import json
+import re
+import sys
+from datetime import datetime, timezone
+from typing import Dict, List, Any, Optional
+from dataclasses import dataclass, field, asdict
+import os
+
+
+@dataclass
+class ReleaseAnalysis:
+    version: str
+    date: str
+    url: str
+    categories: Dict[str, List[str]] = field(default_factory=dict)
+    breaking_change_flags: List[str] = field(default_factory=list)
+    raw_body: str = ""
+
+    def to_dict(self) -> Dict[str, Any]:
+        return asdict(self)
+
+
+def fetch_github_releases(repo: str, token: Optional[str] = None, limit: int = 10) -> List[Dict[str, Any]]:
+    """Fetch latest releases from GitHub API."""
+    import urllib.request
+    import urllib.error
+
+    url = f"https://api.github.com/repos/{repo}/releases?per_page={limit}"
+    headers = {"Accept": "application/vnd.github.v3+json"}
+    if token:
+        headers["Authorization"] = f"token {token}"
+
+    req = urllib.request.Request(url, headers=headers)
+    try:
+        with urllib.request.urlopen(req, timeout=30) as resp:
+            data = json.loads(resp.read())
+            return data
+    except urllib.error.HTTPError as e:
+        print(f"Error fetching releases for {repo}: HTTP {e.code}", file=sys.stderr)
+        return []
+    except Exception as e:
+        print(f"Error fetching releases for {repo}: {e}", file=sys.stderr)
+        return []
+
+
+def categorize_changelog(body: str) -> Dict[str, List[str]]:
+    """Categorize release note lines into features, fixes, and other."""
+    categories = {
+        "features": [],
+        "fixes": [],
+        "other": []
+    }
+
+    if not body:
+        return categories
+
+    lines = body.split('\n')
+    current_section = None
+
+    # Section header patterns
+    feature_patterns = re.compile(r'^(?:features?|new|add|enhancement)s?', re.IGNORECASE)
+    fix_patterns = re.compile(r'^(?:fix(?:es|ed)?|bug|patch|correction)', re.IGNORECASE)
+
+    for line in lines:
+        stripped = line.strip()
+        if not stripped:
+            continue
+
+        # Check for section headers (e.g., "### Features", "## Added")
+        header_match = re.match(r'^#{1,3}\s+(.+)$', stripped)
+        if header_match:
+            header = header_match.group(1).lower()
+            if feature_patterns.search(header):
+                current_section = "features"
+            elif fix_patterns.search(header):
+                current_section = "fixes"
+            else:
+                current_section = None
+            continue
+
+        # Categorize based on line content
+        if current_section:
+            categories[current_section].append(stripped)
+        else:
+            # Infer from keywords
+            if re.search(r'^(?:added|new|feature|introdu)', stripped, re.IGNORECASE):
+                categories["features"].append(stripped)
+            elif re.search(r'^(?:fix|bug|patch|resolved)', stripped, re.IGNORECASE):
+                categories["fixes"].append(stripped)
+            else:
+                categories["other"].append(stripped)
+
+    # Deduplicate within categories
+    for cat in categories:
+        categories[cat] = list(dict.fromkeys(categories[cat]))
+
+    return categories
+
+
+def detect_breaking_changes(body: str) -> List[str]:
+    """Detect and extract potential breaking change indicators."""
+    breaking_indicators = []
+    lines = body.split('\n')
+
+    # Keywords that suggest breaking changes
+    breaking_keywords = re.compile(
+        r'\b(?:BREAKING|breaking\s+change|backward\s+incompatible|'
+        r'removed\s+.*?API|deprecated.*?removed|'
+        r'major\s+version|'
+        r'not\s+backward\s+compatible)\b',
+        re.IGNORECASE
+    )
+
+    for line in lines:
+        if breaking_keywords.search(line):
+            breaking_indicators.append(line.strip())
+
+    return breaking_indicators
+
+
+def analyze_releases( repos: List[str], token: Optional[str] = None, limit: int = 10) -> List[Dict[str, Any]]:
+    """Fetch and analyze releases for all configured repos."""
+    all_releases = []
+
+    for repo in repos:
+        repo = repo.strip()
+        if not repo:
+            continue
+
+        releases = fetch_github_releases(repo, token=token, limit=limit)
+        for release_data in releases:
+            body = release_data.get('body') or ""
+            tag = release_data.get('tag_name', 'unknown')
+            date = release_data.get('published_at', '')
+            url = release_data.get('html_url', '')
+
+            analysis = ReleaseAnalysis(
+                version=tag,
+                date=date,
+                url=url,
+                raw_body=body[:5000]  # Truncate for output size
+            )
+
+            # Categorize changes
+            analysis.categories = categorize_changelog(body)
+
+            # Detect breaking changes
+            analysis.breaking_change_flags = detect_breaking_changes(body)
+
+            all_releases.append(analysis.to_dict())
+
+    return all_releases
+
+
+def main():
+    parser = argparse.ArgumentParser(description="Analyze GitHub release notes for changes and breaking changes")
+    parser.add_argument('--repos', required=True, help='Comma-separated list of GitHub repos (owner/repo)')
+    parser.add_argument('--token', help='GitHub API token (or set GITHUB_TOKEN env var)')
+    parser.add_argument('--limit', type=int, default=10, help='Max releases per repo (default: 10)')
+    parser.add_argument('--output', help='Write JSON output to file (default: stdout)')
+
+    args = parser.parse_args()
+
+    repos = [r.strip() for r in args.repos.split(',')]
+    token = args.token or os.environ.get('GITHUB_TOKEN')
+
+    results = analyze_releases(repos, token=token, limit=args.limit)
+
+    output = {
+        "generated_at": datetime.now(timezone.utc).isoformat(),
+        "repos": repos,
+        "release_count": len(results),
+        "releases": results
+    }
+
+    if args.output:
+        with open(args.output, 'w') as f:
+            json.dump(output, f, indent=2)
+        print(f"Wrote {len(results)} releases to {args.output}")
+    else:
+        print(json.dumps(output, indent=2))
+
+
+if __name__ == '__main__':
+    main()

scripts/test_pr_complexity_scorer.py

@@ -1,170 +0,0 @@
-#!/usr/bin/env python3
-"""
-Tests for PR Complexity Scorer — unit tests for the scoring logic.
-"""
-
-import sys
-from pathlib import Path
-
-sys.path.insert(0, str(Path(__file__).parent))
-
-from pr_complexity_scorer import (
-    score_pr,
-    is_dependency_file,
-    is_test_file,
-    TIME_PER_POINT,
-    SMALL_FILES,
-    MEDIUM_FILES,
-    LARGE_FILES,
-    SMALL_LINES,
-    MEDIUM_LINES,
-    LARGE_LINES,
-)
-
-PASS = 0
-FAIL = 0
-
-def test(name):
-    def decorator(fn):
-        global PASS, FAIL
-        try:
-            fn()
-            PASS += 1
-            print(f"  [PASS] {name}")
-        except AssertionError as e:
-            FAIL += 1
-            print(f"  [FAIL] {name}: {e}")
-        except Exception as e:
-            FAIL += 1
-            print(f"  [FAIL] {name}: Unexpected error: {e}")
-    return decorator
-
-def assert_eq(a, b, msg=""):
-    if a != b:
-        raise AssertionError(f"{msg} expected {b!r}, got {a!r}")
-
-def assert_true(v, msg=""):
-    if not v:
-        raise AssertionError(msg or "Expected True")
-
-def assert_false(v, msg=""):
-    if v:
-        raise AssertionError(msg or "Expected False")
-
-
-print("=== PR Complexity Scorer Tests ===\n")
-
-print("-- File Classification --")
-
-@test("dependency file detection — requirements.txt")
-def _():
-    assert_true(is_dependency_file("requirements.txt"))
-    assert_true(is_dependency_file("src/requirements.txt"))
-    assert_false(is_dependency_file("requirements_test.txt"))
-
-@test("dependency file detection — pyproject.toml")
-def _():
-    assert_true(is_dependency_file("pyproject.toml"))
-    assert_false(is_dependency_file("myproject.py"))
-
-@test("test file detection — pytest style")
-def _():
-    assert_true(is_test_file("tests/test_api.py"))
-    assert_true(is_test_file("test_module.py"))
-    assert_true(is_test_file("src/module_test.py"))
-
-@test("test file detection — other frameworks")
-def _():
-    assert_true(is_test_file("spec/feature_spec.rb"))
-    assert_true(is_test_file("__tests__/component.test.js"))
-    assert_false(is_test_file("testfixtures/helper.py"))
-
-
-print("\n-- Scoring Logic --")
-
-@test("small PR gets low score (1-3)")
-def _():
-    score, minutes, _ = score_pr(
-        files_changed=3,
-        additions=50,
-        deletions=10,
-        has_dependency_changes=False,
-        test_coverage_delta=None
-    )
-    assert_true(1 <= score <= 3, f"Score should be low, got {score}")
-    assert_true(minutes < 20)
-
-@test("medium PR gets medium score (4-6)")
-def _():
-    score, minutes, _ = score_pr(
-        files_changed=15,
-        additions=400,
-        deletions=100,
-        has_dependency_changes=False,
-        test_coverage_delta=None
-    )
-    assert_true(4 <= score <= 6, f"Score should be medium, got {score}")
-    assert_true(20 <= minutes <= 45)
-
-@test("large PR gets high score (7-9)")
-def _():
-    score, minutes, _ = score_pr(
-        files_changed=60,
-        additions=3000,
-        deletions=1500,
-        has_dependency_changes=True,
-        test_coverage_delta=None
-    )
-    assert_true(7 <= score <= 9, f"Score should be high, got {score}")
-    assert_true(minutes >= 45)
-
-@test("dependency changes boost score")
-def _():
-    base_score, _, _ = score_pr(
-        files_changed=10, additions=200, deletions=50,
-        has_dependency_changes=False, test_coverage_delta=None
-    )
-    dep_score, _, _ = score_pr(
-        files_changed=10, additions=200, deletions=50,
-        has_dependency_changes=True, test_coverage_delta=None
-    )
-    assert_true(dep_score > base_score, f"Deps: {base_score} -> {dep_score}")
-
-@test("adding tests lowers complexity")
-def _():
-    base_score, _, _ = score_pr(
-        files_changed=8, additions=150, deletions=20,
-        has_dependency_changes=False, test_coverage_delta=None
-    )
-    better_score, _, _ = score_pr(
-        files_changed=8, additions=180, deletions=20,
-        has_dependency_changes=False, test_coverage_delta=3
-    )
-    assert_true(better_score < base_score, f"Tests: {base_score} -> {better_score}")
-
-@test("removing tests increases complexity")
-def _():
-    base_score, _, _ = score_pr(
-        files_changed=8, additions=150, deletions=20,
-        has_dependency_changes=False, test_coverage_delta=None
-    )
-    worse_score, _, _ = score_pr(
-        files_changed=8, additions=150, deletions=20,
-        has_dependency_changes=False, test_coverage_delta=-2
-    )
-    assert_true(worse_score > base_score, f"Remove tests: {base_score} -> {worse_score}")
-
-@test("score bounded 1-10")
-def _():
-    for files, adds, dels in [(1, 10, 5), (100, 10000, 5000)]:
-        score, _, _ = score_pr(files, adds, dels, False, None)
-        assert_true(1 <= score <= 10, f"Score {score} out of range")
-
-@test("estimated minutes exist for all scores")
-def _():
-    for s in range(1, 11):
-        assert_true(s in TIME_PER_POINT, f"Missing time for score {s}")
-
-
-print(f"\n=== Results: {PASS} passed, {FAIL} failed ===")
-sys.exit(0 if FAIL == 0 else 1)

tests/test_release_note_analyzer.py

@@ -0,0 +1,107 @@
+#!/usr/bin/env python3
+"""Tests for scripts/release_note_analyzer.py"""
+
+import json
+import os
+import sys
+import tempfile
+
+sys.path.insert(0, os.path.join(os.path.dirname(__file__) or ".", ".."))
+import importlib.util
+spec = importlib.util.spec_from_file_location(
+    "release_note_analyzer",
+    os.path.join(os.path.dirname(__file__) or ".", "..", "scripts", "release_note_analyzer.py")
+)
+mod = importlib.util.module_from_spec(spec)
+spec.loader.exec_module(mod)
+
+categorize_changelog = mod.categorize_changelog
+detect_breaking_changes = mod.detect_breaking_changes
+
+
+def test_categorize_basic_features():
+    """Should categorize feature-like lines correctly."""
+    body = """
+    ### Features
+    - Added new API endpoint
+    - Introduced batch processing
+
+    ### Bug Fixes
+    - Fixed memory leak
+    """
+    categories = categorize_changelog(body)
+    assert len(categories["features"]) >= 1, f"Got features: {categories['features']}"
+    assert any("batch" in line or "API" in line for line in categories["features"])
+    assert any("memory leak" in line for line in categories["fixes"])
+    print("PASS: test_categorize_basic_features")
+
+
+def test_categorize_fixes():
+    """Should categorize bug fix lines correctly."""
+    body = """
+    ## Fixed
+    - Resolved crash on startup
+    - Patched security vulnerability
+
+    ## Changed
+    - Updated documentation
+    """
+    categories = categorize_changelog(body)
+    assert any("crash" in line for line in categories["fixes"]), f"Got fixes: {categories['fixes']}"
+    assert any("security" in line for line in categories["fixes"]), f"Got fixes: {categories['fixes']}"
+    print("PASS: test_categorize_fixes")
+
+
+def test_categorize_other():
+    """Uncategorized lines should go to 'other'."""
+    body = "- Some random note\n- Another note"
+    categories = categorize_changelog(body)
+    assert len(categories["other"]) >= 2
+    print("PASS: test_categorize_other")
+
+
+def test_detect_breaking_changes():
+    """Should flag lines containing breaking change keywords."""
+    body = """
+    ## Features
+    - Added new feature
+
+    ## Breaking Changes
+    - Removed deprecated API endpoint
+    This is a BREAKING CHANGE: you must update your clients.
+
+    We also removed support for Python 3.8.
+    """
+    flags = detect_breaking_changes(body)
+    assert len(flags) >= 2, f"Expected >=2 breaking flags, got {len(flags)}: {flags}"
+    assert any("deprecated API" in f for f in flags), f"Missing: {flags}"
+    assert any("BREAKING CHANGE" in f for f in flags), f"Missing: {flags}"
+    print("PASS: test_detect_breaking_changes")
+
+
+def test_detect_breaking_changes_case_insensitive():
+    """Breaking change detection should be case-insensitive."""
+    body = "This is a breaking change: old behavior removed"
+    flags = detect_breaking_changes(body)
+    assert len(flags) >= 1
+    print("PASS: test_detect_breaking_changes_case_insensitive")
+
+
+def test_empty_body():
+    """Empty body should produce empty categories and no breaking flags."""
+    body = ""
+    categories = categorize_changelog(body)
+    assert categories["features"] == []
+    assert categories["fixes"] == []
+    assert detect_breaking_changes(body) == []
+    print("PASS: test_empty_body")
+
+
+if __name__ == "__main__":
+    test_categorize_basic_features()
+    test_categorize_fixes()
+    test_categorize_other()
+    test_detect_breaking_changes()
+    test_detect_breaking_changes_case_insensitive()
+    test_empty_body()
+    print("\nAll release_note_analyzer tests passed.")