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Garry Tan
126 lines
6.7 KiB
Markdown
126 lines
6.7 KiB
Markdown
# Pre-Landing Review Checklist
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## Instructions
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Review the `git diff origin/main` output for the issues listed below. Be specific — cite `file:line` and suggest fixes. Skip anything that's fine. Only flag real problems.
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**Two-pass review:**
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- **Pass 1 (CRITICAL):** Run SQL & Data Safety and LLM Output Trust Boundary first. These can block `/ship`.
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- **Pass 2 (INFORMATIONAL):** Run all remaining categories. These are included in the PR body but do not block.
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**Output format:**
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```
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Pre-Landing Review: N issues (X critical, Y informational)
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**CRITICAL** (blocking /ship):
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- [file:line] Problem description
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Fix: suggested fix
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**Issues** (non-blocking):
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- [file:line] Problem description
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Fix: suggested fix
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```
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If no issues found: `Pre-Landing Review: No issues found.`
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Be terse. For each issue: one line describing the problem, one line with the fix. No preamble, no summaries, no "looks good overall."
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---
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## Review Categories
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### Pass 1 — CRITICAL
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#### SQL & Data Safety
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- String interpolation in SQL (even if values are `.to_i`/`.to_f` — use `sanitize_sql_array` or Arel)
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- TOCTOU races: check-then-set patterns that should be atomic `WHERE` + `update_all`
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- `update_column`/`update_columns` bypassing validations on fields that have or should have constraints
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- N+1 queries: `.includes()` missing for associations used in loops/views (especially avatar, attachments)
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#### Race Conditions & Concurrency
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- Read-check-write without uniqueness constraint or `rescue RecordNotUnique; retry` (e.g., `where(hash:).first` then `save!` without handling concurrent insert)
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- `find_or_create_by` on columns without unique DB index — concurrent calls can create duplicates
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- Status transitions that don't use atomic `WHERE old_status = ? UPDATE SET new_status` — concurrent updates can skip or double-apply transitions
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- `html_safe` on user-controlled data (XSS) — check any `.html_safe`, `raw()`, or string interpolation into `html_safe` output
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#### LLM Output Trust Boundary
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- LLM-generated values (emails, URLs, names) written to DB or passed to mailers without format validation. Add lightweight guards (`EMAIL_REGEXP`, `URI.parse`, `.strip`) before persisting.
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- Structured tool output (arrays, hashes) accepted without type/shape checks before database writes.
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### Pass 2 — INFORMATIONAL
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#### Conditional Side Effects
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- Code paths that branch on a condition but forget to apply a side effect on one branch. Example: item promoted to verified but URL only attached when a secondary condition is true — the other branch promotes without the URL, creating an inconsistent record.
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- Log messages that claim an action happened but the action was conditionally skipped. The log should reflect what actually occurred.
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#### Magic Numbers & String Coupling
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- Bare numeric literals used in multiple files — should be named constants documented together
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- Error message strings used as query filters elsewhere (grep for the string — is anything matching on it?)
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#### Dead Code & Consistency
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- Variables assigned but never read
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- Version mismatch between PR title and VERSION/CHANGELOG files
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- CHANGELOG entries that describe changes inaccurately (e.g., "changed from X to Y" when X never existed)
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- Comments/docstrings that describe old behavior after the code changed
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#### LLM Prompt Issues
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- 0-indexed lists in prompts (LLMs reliably return 1-indexed)
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- Prompt text listing available tools/capabilities that don't match what's actually wired up in the `tool_classes`/`tools` array
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- Word/token limits stated in multiple places that could drift
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#### Test Gaps
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- Negative-path tests that assert type/status but not the side effects (URL attached? field populated? callback fired?)
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- Assertions on string content without checking format (e.g., asserting title present but not URL format)
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- `.expects(:something).never` missing when a code path should explicitly NOT call an external service
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- Security enforcement features (blocking, rate limiting, auth) without integration tests verifying the enforcement path works end-to-end
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#### Crypto & Entropy
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- Truncation of data instead of hashing (last N chars instead of SHA-256) — less entropy, easier collisions
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- `rand()` / `Random.rand` for security-sensitive values — use `SecureRandom` instead
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- Non-constant-time comparisons (`==`) on secrets or tokens — vulnerable to timing attacks
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#### Time Window Safety
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- Date-key lookups that assume "today" covers 24h — report at 8am PT only sees midnight→8am under today's key
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- Mismatched time windows between related features — one uses hourly buckets, another uses daily keys for the same data
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#### Type Coercion at Boundaries
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- Values crossing Ruby→JSON→JS boundaries where type could change (numeric vs string) — hash/digest inputs must normalize types
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- Hash/digest inputs that don't call `.to_s` or equivalent before serialization — `{ cores: 8 }` vs `{ cores: "8" }` produce different hashes
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#### View/Frontend
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- Inline `<style>` blocks in partials (re-parsed every render)
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- O(n*m) lookups in views (`Array#find` in a loop instead of `index_by` hash)
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- Ruby-side `.select{}` filtering on DB results that could be a `WHERE` clause (unless intentionally avoiding leading-wildcard `LIKE`)
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---
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## Gate Classification
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```
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CRITICAL (blocks /ship): INFORMATIONAL (in PR body):
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├─ SQL & Data Safety ├─ Conditional Side Effects
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├─ Race Conditions & Concurrency ├─ Magic Numbers & String Coupling
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└─ LLM Output Trust Boundary ├─ Dead Code & Consistency
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├─ LLM Prompt Issues
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├─ Test Gaps
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├─ Crypto & Entropy
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├─ Time Window Safety
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├─ Type Coercion at Boundaries
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└─ View/Frontend
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```
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---
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## Suppressions — DO NOT flag these
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- "X is redundant with Y" when the redundancy is harmless and aids readability (e.g., `present?` redundant with `length > 20`)
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- "Add a comment explaining why this threshold/constant was chosen" — thresholds change during tuning, comments rot
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- "This assertion could be tighter" when the assertion already covers the behavior
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- Suggesting consistency-only changes (wrapping a value in a conditional to match how another constant is guarded)
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- "Regex doesn't handle edge case X" when the input is constrained and X never occurs in practice
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- "Test exercises multiple guards simultaneously" — that's fine, tests don't need to isolate every guard
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- Eval threshold changes (max_actionable, min scores) — these are tuned empirically and change constantly
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- Harmless no-ops (e.g., `.reject` on an element that's never in the array)
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- ANYTHING already addressed in the diff you're reviewing — read the FULL diff before commenting
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