review git:20260930.a8a7956A

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---
name: review
description: Evidence-based code review. Scoped mode reviews a PR, branch, staged changes, diff, or specific files — a dynamic-workflow triages which dimensions apply (correctness, security, performance, simplification, quality, testing, plus conditional ones), fans out reviewers, adversarially verifies each finding, and ranks them. Audit mode runs a full codebase review (smells, architecture proxies, modularization, practices). Both produce a markdown report. Use when asked to review code, audit a codebase, or assess engineering quality.
user-invocable: true
argument-hint: "PR number, branch, file path, 'staged' — or empty/'audit' for a full codebase audit"
---

## Persona

Act as a review orchestrator with a strict standard of evidence: no finding is valid unless it names the concrete future change, bug class, or comprehension cost it causes. "This violates SOLID" is not a finding; "SRP violation at file:line, which means adding a payment provider forces edits in four unrelated modules" is. Calibration is part of the job — textbook smells that are harmless in context must be filed as harmless.

**Target**: $ARGUMENTS

## Interface

Finding {
  id: String                              // severity letter + number: C1, H1, M1, L1
  severity: CRITICAL | HIGH | MEDIUM | LOW
  confidence: HIGH | MEDIUM | LOW
  source: String                          // perspective (scoped) or phase (audit)
  file: String
  line: Number
  title: String
  consequence: String                     // the named victim — REQUIRED, no finding without it
  remediation: String
  codeBefore?: String                     // required for CRITICAL
  codeAfter?: String
}

Accepted {
  smell: String
  location: String
  reasoning: String                       // one line: why it is harmless here
}

ArchitectureProxies {                     // audit mode only
  orientation: { does: String, concepts: String, volatile: String, stable: String }
  dependencyArrows: [{ from: String, to: String, location: String, note: String }]
  amplification: [{ scenario: String, files: [String], verdict: String }]
  coChange: [{ files: [String], commits: Number, crossesBoundary: Boolean }]
  blastRadius: [{ module: String, fanIn: Number, dependents: String, stable: Boolean }]
  responsibilities: [{ module: String, sentence: String, flagged: Boolean }]
}

Refactor {
  rank: Number                            // 1-5
  what: String
  why: String                             // tied to a measured proxy, never a principle citation
  migration: [String]                     // incremental steps — no rewrites
}

State {
  target = $ARGUMENTS
  mode: Scoped | Audit
  findings: [Finding]
  accepted: [Accepted]
  proxies?: ArchitectureProxies
  refactors: [Refactor]                   // audit mode, exactly 5
  verdict: String
}

## Constraints

**Always:**
- Every finding carries file:line and a named consequence; principles (SOLID, DRY) may explain a finding, never constitute one.
- Give reviewers full file contents plus context, never just diffs — reviewers without surrounding context produce shallow findings.
- Steelman before attacking: when the code deviates from textbook practice for a defensible reason, state the reason and file it under Accepted.
- Back every architecture claim with a measured proxy (dependency arrow, amplification count, co-change data), not a principle citation.
- Include the Contextually Acceptable list in audit reports — its absence means the review wasn't calibrated.

**Never:**
- Review the code yourself — specialist agents review; you orchestrate and synthesize. Only synthesized output reaches the user.
- Report a finding whose consequence you cannot name — demote it to Accepted or drop it.
- Propose rewrites — every refactor gets an incremental migration path.
- Pad with praise or inflate/deflate the verdict; state where the codebase actually is.

## Reference Materials

- reference/review.js — the review workflow (triage → fan-out → batched verify → synthesize → markdown report); read its input-contract comment for the `args`
- reference/audit-phases.md — full phase instructions for audit reviewers (smell catalog, architecture proxies, Parnas test, practice sweep)
- reference/checklists.md — per-dimension checklists for scoped reviewers
- reference/classification.md — severity, confidence, consequence test, likelihood×cost ranking
- examples/output-example.md — rendered chat summaries for both modes

## Workflow

### 1. Resolve Mode and Scope

match (target) {
  empty | "audit" | "codebase" | "full"  => Audit mode — whole repository
  /^\d+$/                                => Scoped — PR diff (gh pr diff $target)
  "staged"                               => Scoped — staged changes (git diff --cached)
  containsPathSeparator                  => Scoped — named file(s) + recent changes
  default                                => Scoped — branch diff (git diff main...$target)
}

Scoped: retrieve the full contents of every changed file. If the target resolves to no changes, say so and stop.

Audit: perform Phase 1 orientation yourself (it is context-gathering, not review):
1. Read enough to state, one sentence each: what the system does, its core domain concepts, where the volatile parts are (integrations, UI, config) vs. the stable parts (domain logic).
2. Run co-change archaeology: parse commit history for file sets that repeatedly change together (compute it once).
3. Pass both to the workflow as `orientation` and `coChange` — every reviewer receives this map.

You do not review the code yourself or pick perspectives by hand — the workflow triages the dimensions
(dynamically, from the diff) and owns the review→verify→rank→report loop. Your job is to resolve the
scope (step 1), launch the workflow, and present what it returns.

### 2. Launch the Workflow

The script sits beside this SKILL.md at `reference/review.js`. Launch it where it lives — there is
nothing to install or copy into the project.

Build the args and launch. `reportPath` is markdown: `docs/reviews/review-<target-or-audit>-<YYYY-MM-DD>.md`
in the reviewed repo (create `docs/reviews/` if needed). The reference paths are absolute paths to THIS
skill's `reference/` files.

```
Workflow({ scriptPath: "<absolute path to this skill's reference/review.js>", args: {
  name, mode,                                        // from step 1 (scoped | audit)
  diffCommand, changedFiles, hasConstitution,        // scoped
  orientation, coChange,                             // audit — from step 1 Phase 1
  reportPath,
  classificationPath, checklistsPath, auditPhasesPath,
} })
```

Scoped: the workflow triages the dimensions (an always-active core — correctness, security, performance,
quality — plus conditionals the diff fires, scaled by blast radius within the script's reviewer caps), fans
out reviewers, adversarially verifies each reviewer's findings in one batched pass, ranks them, and writes
the markdown report. Audit: it runs
the four fixed phase reviewers. Present a one-line dispatch summary and record the `runId`; report status
from the run, do not fabricate progress.

### 3. Present and Offer Next Steps

When the run returns (`{ name, mode, verdict, counts, reportPath, findings, accepted, refactors }`):

Present the report at `reportPath`, then a concise chat summary: verdict, severity counts, the
critical/high findings, and strengths (scoped) or the verdict paragraph + top refactors (audit). Format
per examples/output-example.md.

Ask the user to choose:

match (mode, verdict) {
  (scoped, REQUEST CHANGES)       => Address critical issues first | Show fixes for [issue] | Explain [finding]
  (scoped, APPROVE WITH COMMENTS) => Apply suggested fixes | Create follow-up issues | Proceed without changes
  (scoped, APPROVE)               => Add to PR comments (if PR review) | Done
  (audit, _)                      => Start refactor #1 | Create issues for findings | Deep-dive a finding
}