Checkpoint: Allegro state pre-migration

2026-04-01 11:04:00 +00:00
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+---
+name: github-code-review
+description: Review code changes by analyzing git diffs, leaving inline comments on PRs, and performing thorough pre-push review. Works with gh CLI or falls back to git + GitHub REST API via curl.
+version: 1.1.0
+author: Hermes Agent
+license: MIT
+metadata:
+  hermes:
+    tags: [GitHub, Code-Review, Pull-Requests, Git, Quality]
+    related_skills: [github-auth, github-pr-workflow]
+---
+
+# GitHub Code Review
+
+Perform code reviews on local changes before pushing, or review open PRs on GitHub. Most of this skill uses plain `git` — the `gh`/`curl` split only matters for PR-level interactions.
+
+## Prerequisites
+
+- Authenticated with GitHub (see `github-auth` skill)
+- Inside a git repository
+
+### Setup (for PR interactions)
+
+```bash
+if command -v gh &>/dev/null && gh auth status &>/dev/null; then
+  AUTH="gh"
+else
+  AUTH="git"
+  if [ -z "$GITHUB_TOKEN" ]; then
+    if [ -f ~/.hermes/.env ] && grep -q "^GITHUB_TOKEN=" ~/.hermes/.env; then
+      GITHUB_TOKEN=$(grep "^GITHUB_TOKEN=" ~/.hermes/.env | head -1 | cut -d= -f2 | tr -d '\n\r')
+    elif grep -q "github.com" ~/.git-credentials 2>/dev/null; then
+      GITHUB_TOKEN=$(grep "github.com" ~/.git-credentials 2>/dev/null | head -1 | sed 's|https://[^:]*:\([^@]*\)@.*|\1|')
+    fi
+  fi
+fi
+
+REMOTE_URL=$(git remote get-url origin)
+OWNER_REPO=$(echo "$REMOTE_URL" | sed -E 's|.*github\.com[:/]||; s|\.git$||')
+OWNER=$(echo "$OWNER_REPO" | cut -d/ -f1)
+REPO=$(echo "$OWNER_REPO" | cut -d/ -f2)
+```
+
+---
+
+## 1. Reviewing Local Changes (Pre-Push)
+
+This is pure `git` — works everywhere, no API needed.
+
+### Get the Diff
+
+```bash
+# Staged changes (what would be committed)
+git diff --staged
+
+# All changes vs main (what a PR would contain)
+git diff main...HEAD
+
+# File names only
+git diff main...HEAD --name-only
+
+# Stat summary (insertions/deletions per file)
+git diff main...HEAD --stat
+```
+
+### Review Strategy
+
+1. **Get the big picture first:**
+
+```bash
+git diff main...HEAD --stat
+git log main..HEAD --oneline
+```
+
+2. **Review file by file** — use `read_file` on changed files for full context, and the diff to see what changed:
+
+```bash
+git diff main...HEAD -- src/auth/login.py
+```
+
+3. **Check for common issues:**
+
+```bash
+# Debug statements, TODOs, console.logs left behind
+git diff main...HEAD | grep -n "print(\|console\.log\|TODO\|FIXME\|HACK\|XXX\|debugger"
+
+# Large files accidentally staged
+git diff main...HEAD --stat | sort -t'|' -k2 -rn | head -10
+
+# Secrets or credential patterns
+git diff main...HEAD | grep -in "password\|secret\|api_key\|token.*=\|private_key"
+
+# Merge conflict markers
+git diff main...HEAD | grep -n "<<<<<<\|>>>>>>\|======="
+```
+
+4. **Present structured feedback** to the user.
+
+### Review Output Format
+
+When reviewing local changes, present findings in this structure:
+
+```
+## Code Review Summary
+
+### Critical
+- **src/auth.py:45** — SQL injection: user input passed directly to query.
+  Suggestion: Use parameterized queries.
+
+### Warnings
+- **src/models/user.py:23** — Password stored in plaintext. Use bcrypt or argon2.
+- **src/api/routes.py:112** — No rate limiting on login endpoint.
+
+### Suggestions
+- **src/utils/helpers.py:8** — Duplicates logic in `src/core/utils.py:34`. Consolidate.
+- **tests/test_auth.py** — Missing edge case: expired token test.
+
+### Looks Good
+- Clean separation of concerns in the middleware layer
+- Good test coverage for the happy path
+```
+
+---
+
+## 2. Reviewing a Pull Request on GitHub
+
+### View PR Details
+
+**With gh:**
+
+```bash
+gh pr view 123
+gh pr diff 123
+gh pr diff 123 --name-only
+```
+
+**With git + curl:**
+
+```bash
+PR_NUMBER=123
+
+# Get PR details
+curl -s \
+  -H "Authorization: token $GITHUB_TOKEN" \
+  https://api.github.com/repos/$OWNER/$REPO/pulls/$PR_NUMBER \
+  | python3 -c "
+import sys, json
+pr = json.load(sys.stdin)
+print(f\"Title: {pr['title']}\")
+print(f\"Author: {pr['user']['login']}\")
+print(f\"Branch: {pr['head']['ref']} -> {pr['base']['ref']}\")
+print(f\"State: {pr['state']}\")
+print(f\"Body:\n{pr['body']}\")"
+
+# List changed files
+curl -s \
+  -H "Authorization: token $GITHUB_TOKEN" \
+  https://api.github.com/repos/$OWNER/$REPO/pulls/$PR_NUMBER/files \
+  | python3 -c "
+import sys, json
+for f in json.load(sys.stdin):
+    print(f\"{f['status']:10} +{f['additions']:-4} -{f['deletions']:-4}  {f['filename']}\")"
+```
+
+### Check Out PR Locally for Full Review
+
+This works with plain `git` — no `gh` needed:
+
+```bash
+# Fetch the PR branch and check it out
+git fetch origin pull/123/head:pr-123
+git checkout pr-123
+
+# Now you can use read_file, search_files, run tests, etc.
+
+# View diff against the base branch
+git diff main...pr-123
+```
+
+**With gh (shortcut):**
+
+```bash
+gh pr checkout 123
+```
+
+### Leave Comments on a PR
+
+**General PR comment — with gh:**
+
+```bash
+gh pr comment 123 --body "Overall looks good, a few suggestions below."
+```
+
+**General PR comment — with curl:**
+
+```bash
+curl -s -X POST \
+  -H "Authorization: token $GITHUB_TOKEN" \
+  https://api.github.com/repos/$OWNER/$REPO/issues/$PR_NUMBER/comments \
+  -d '{"body": "Overall looks good, a few suggestions below."}'
+```
+
+### Leave Inline Review Comments
+
+**Single inline comment — with gh (via API):**
+
+```bash
+HEAD_SHA=$(gh pr view 123 --json headRefOid --jq '.headRefOid')
+
+gh api repos/$OWNER/$REPO/pulls/123/comments \
+  --method POST \
+  -f body="This could be simplified with a list comprehension." \
+  -f path="src/auth/login.py" \
+  -f commit_id="$HEAD_SHA" \
+  -f line=45 \
+  -f side="RIGHT"
+```
+
+**Single inline comment — with curl:**
+
+```bash
+# Get the head commit SHA
+HEAD_SHA=$(curl -s \
+  -H "Authorization: token $GITHUB_TOKEN" \
+  https://api.github.com/repos/$OWNER/$REPO/pulls/$PR_NUMBER \
+  | python3 -c "import sys,json; print(json.load(sys.stdin)['head']['sha'])")
+
+curl -s -X POST \
+  -H "Authorization: token $GITHUB_TOKEN" \
+  https://api.github.com/repos/$OWNER/$REPO/pulls/$PR_NUMBER/comments \
+  -d "{
+    \"body\": \"This could be simplified with a list comprehension.\",
+    \"path\": \"src/auth/login.py\",
+    \"commit_id\": \"$HEAD_SHA\",
+    \"line\": 45,
+    \"side\": \"RIGHT\"
+  }"
+```
+
+### Submit a Formal Review (Approve / Request Changes)
+
+**With gh:**
+
+```bash
+gh pr review 123 --approve --body "LGTM!"
+gh pr review 123 --request-changes --body "See inline comments."
+gh pr review 123 --comment --body "Some suggestions, nothing blocking."
+```
+
+**With curl — multi-comment review submitted atomically:**
+
+```bash
+HEAD_SHA=$(curl -s \
+  -H "Authorization: token $GITHUB_TOKEN" \
+  https://api.github.com/repos/$OWNER/$REPO/pulls/$PR_NUMBER \
+  | python3 -c "import sys,json; print(json.load(sys.stdin)['head']['sha'])")
+
+curl -s -X POST \
+  -H "Authorization: token $GITHUB_TOKEN" \
+  https://api.github.com/repos/$OWNER/$REPO/pulls/$PR_NUMBER/reviews \
+  -d "{
+    \"commit_id\": \"$HEAD_SHA\",
+    \"event\": \"COMMENT\",
+    \"body\": \"Code review from Hermes Agent\",
+    \"comments\": [
+      {\"path\": \"src/auth.py\", \"line\": 45, \"body\": \"Use parameterized queries to prevent SQL injection.\"},
+      {\"path\": \"src/models/user.py\", \"line\": 23, \"body\": \"Hash passwords with bcrypt before storing.\"},
+      {\"path\": \"tests/test_auth.py\", \"line\": 1, \"body\": \"Add test for expired token edge case.\"}
+    ]
+  }"
+```
+
+Event values: `"APPROVE"`, `"REQUEST_CHANGES"`, `"COMMENT"`
+
+The `line` field refers to the line number in the *new* version of the file. For deleted lines, use `"side": "LEFT"`.
+
+---
+
+## 3. Review Checklist
+
+When performing a code review (local or PR), systematically check:
+
+### Correctness
+- Does the code do what it claims?
+- Edge cases handled (empty inputs, nulls, large data, concurrent access)?
+- Error paths handled gracefully?
+
+### Security
+- No hardcoded secrets, credentials, or API keys
+- Input validation on user-facing inputs
+- No SQL injection, XSS, or path traversal
+- Auth/authz checks where needed
+
+### Code Quality
+- Clear naming (variables, functions, classes)
+- No unnecessary complexity or premature abstraction
+- DRY — no duplicated logic that should be extracted
+- Functions are focused (single responsibility)
+
+### Testing
+- New code paths tested?
+- Happy path and error cases covered?
+- Tests readable and maintainable?
+
+### Performance
+- No N+1 queries or unnecessary loops
+- Appropriate caching where beneficial
+- No blocking operations in async code paths
+
+### Documentation
+- Public APIs documented
+- Non-obvious logic has comments explaining "why"
+- README updated if behavior changed
+
+---
+
+## 4. Pre-Push Review Workflow
+
+When the user asks you to "review the code" or "check before pushing":
+
+1. `git diff main...HEAD --stat` — see scope of changes
+2. `git diff main...HEAD` — read the full diff
+3. For each changed file, use `read_file` if you need more context
+4. Apply the checklist above
+5. Present findings in the structured format (Critical / Warnings / Suggestions / Looks Good)
+6. If critical issues found, offer to fix them before the user pushes
+
+---
+
+## 5. PR Review Workflow (End-to-End)
+
+When the user asks you to "review PR #N", "look at this PR", or gives you a PR URL, follow this recipe:
+
+### Step 1: Set up environment
+
+```bash
+source ~/.hermes/skills/github/github-auth/scripts/gh-env.sh
+# Or run the inline setup block from the top of this skill
+```
+
+### Step 2: Gather PR context
+
+Get the PR metadata, description, and list of changed files to understand scope before diving into code.
+
+**With gh:**
+```bash
+gh pr view 123
+gh pr diff 123 --name-only
+gh pr checks 123
+```
+
+**With curl:**
+```bash
+PR_NUMBER=123
+
+# PR details (title, author, description, branch)
+curl -s -H "Authorization: token $GITHUB_TOKEN" \
+  https://api.github.com/repos/$GH_OWNER/$GH_REPO/pulls/$PR_NUMBER
+
+# Changed files with line counts
+curl -s -H "Authorization: token $GITHUB_TOKEN" \
+  https://api.github.com/repos/$GH_OWNER/$GH_REPO/pulls/$PR_NUMBER/files
+```
+
+### Step 3: Check out the PR locally
+
+This gives you full access to `read_file`, `search_files`, and the ability to run tests.
+
+```bash
+git fetch origin pull/$PR_NUMBER/head:pr-$PR_NUMBER
+git checkout pr-$PR_NUMBER
+```
+
+### Step 4: Read the diff and understand changes
+
+```bash
+# Full diff against the base branch
+git diff main...HEAD
+
+# Or file-by-file for large PRs
+git diff main...HEAD --name-only
+# Then for each file:
+git diff main...HEAD -- path/to/file.py
+```
+
+For each changed file, use `read_file` to see full context around the changes — diffs alone can miss issues visible only with surrounding code.
+
+### Step 5: Run automated checks locally (if applicable)
+
+```bash
+# Run tests if there's a test suite
+python -m pytest 2>&1 | tail -20
+# or: npm test, cargo test, go test ./..., etc.
+
+# Run linter if configured
+ruff check . 2>&1 | head -30
+# or: eslint, clippy, etc.
+```
+
+### Step 6: Apply the review checklist (Section 3)
+
+Go through each category: Correctness, Security, Code Quality, Testing, Performance, Documentation.
+
+### Step 7: Post the review to GitHub
+
+Collect your findings and submit them as a formal review with inline comments.
+
+**With gh:**
+```bash
+# If no issues — approve
+gh pr review $PR_NUMBER --approve --body "Reviewed by Hermes Agent. Code looks clean — good test coverage, no security concerns."
+
+# If issues found — request changes with inline comments
+gh pr review $PR_NUMBER --request-changes --body "Found a few issues — see inline comments."
+```
+
+**With curl — atomic review with multiple inline comments:**
+```bash
+HEAD_SHA=$(curl -s -H "Authorization: token $GITHUB_TOKEN" \
+  https://api.github.com/repos/$GH_OWNER/$GH_REPO/pulls/$PR_NUMBER \
+  | python3 -c "import sys,json; print(json.load(sys.stdin)['head']['sha'])")
+
+# Build the review JSON — event is APPROVE, REQUEST_CHANGES, or COMMENT
+curl -s -X POST \
+  -H "Authorization: token $GITHUB_TOKEN" \
+  https://api.github.com/repos/$GH_OWNER/$GH_REPO/pulls/$PR_NUMBER/reviews \
+  -d "{
+    \"commit_id\": \"$HEAD_SHA\",
+    \"event\": \"REQUEST_CHANGES\",
+    \"body\": \"## Hermes Agent Review\n\nFound 2 issues, 1 suggestion. See inline comments.\",
+    \"comments\": [
+      {\"path\": \"src/auth.py\", \"line\": 45, \"body\": \"🔴 **Critical:** User input passed directly to SQL query — use parameterized queries.\"},
+      {\"path\": \"src/models.py\", \"line\": 23, \"body\": \"⚠️ **Warning:** Password stored without hashing.\"},
+      {\"path\": \"src/utils.py\", \"line\": 8, \"body\": \"💡 **Suggestion:** This duplicates logic in core/utils.py:34.\"}
+    ]
+  }"
+```
+
+### Step 8: Also post a summary comment
+
+In addition to inline comments, leave a top-level summary so the PR author gets the full picture at a glance. Use the review output format from `references/review-output-template.md`.
+
+**With gh:**
+```bash
+gh pr comment $PR_NUMBER --body "$(cat <<'EOF'
+## Code Review Summary
+
+**Verdict: Changes Requested** (2 issues, 1 suggestion)
+
+### 🔴 Critical
+- **src/auth.py:45** — SQL injection vulnerability
+
+### ⚠️ Warnings
+- **src/models.py:23** — Plaintext password storage
+
+### 💡 Suggestions
+- **src/utils.py:8** — Duplicated logic, consider consolidating
+
+### ✅ Looks Good
+- Clean API design
+- Good error handling in the middleware layer
+
+---
+*Reviewed by Hermes Agent*
+EOF
+)"
+```
+
+### Step 9: Clean up
+
+```bash
+git checkout main
+git branch -D pr-$PR_NUMBER
+```
+
+### Decision: Approve vs Request Changes vs Comment
+
+- **Approve** — no critical or warning-level issues, only minor suggestions or all clear
+- **Request Changes** — any critical or warning-level issue that should be fixed before merge
+- **Comment** — observations and suggestions, but nothing blocking (use when you're unsure or the PR is a draft)