Unslopify

Review tactical code quality through four complementary lenses:

• Contract strength: Do types, schemas, validation, and invariants express valid states?
• Single responsibility: Does each unit have a coherent reason to change?
• Failure integrity: Are failures handled deliberately rather than hidden?
• Knowledge duplication: Is the same rule encoded in multiple places?

Perform a review by default. Do not edit code unless the user explicitly asks for changes.

Select the scope

Honor an explicit user-provided review scope before applying defaults. Accept files, directories, snippets, diffs, commits, branches, pull-request refs, or the whole repository. A comparison-base option by itself configures branch comparison; it is not a review scope.

When the user does not specify a scope:

1. In a Git repository, inspect working-tree changes relative to HEAD.
2. If the working tree is clean, resolve the comparison base in this order: a comparison-base option supplied by the user, the remote's symbolic default branch, then the configured upstream when no remote default can be determined. Never assume main.
3. Compute the merge base between that ref and HEAD, then review from the merge base through HEAD. This includes already-pushed feature commits instead of comparing a feature branch only with its same-named remote tracking branch.
4. If no base or meaningful diff can be determined, ask for a scope or report that there is nothing to review.
5. Outside Git with no explicit review scope, ask the user for files, a directory, a diff, or a snippet to review.

Read enough surrounding code, tests, configuration, and documentation to validate each finding. Distinguish problems introduced by the selected changes from relevant pre-existing context. Exclude generated, vendored, minified, lock, and snapshot files unless requested.

Apply the review lenses

Run all four lenses unless the user selects one. If independent workers or subagents are available, the lenses may run in parallel with the same scope. Otherwise, run them sequentially. Parallelism is an optimization, not a requirement.

1. Read contracts.md for type, schema, validation, nullability, state-modeling, and boundary-contract issues.
2. Read responsibility.md for mixed change vectors, abstraction levels, and orchestration that contains unrelated policy.
3. Read failure-integrity.md for swallowed failures, unbounded recovery, invalid defaults, and workaround-driven control flow.
4. Read duplication.md for duplicated knowledge and missed shared sources of truth without encouraging premature abstraction.
5. Merge overlapping observations into one finding and name the primary root cause.

Remain language-agnostic

Evaluate contracts and behavior relative to the repository's language and conventions.

• In statically typed code, use the available type system to judge whether invalid states are representable unnecessarily.
• In dynamically typed code, consider annotations, schemas, validators, tests, protocols, and runtime guards; do not require static typing merely for its own sake.
• Treat exceptions, result values, optionals, error codes, panics, retries, and fallbacks as different encodings of failure policy rather than universally good or bad constructs.
• Treat duplicated knowledge as the target of DRY analysis, not repeated syntax alone.
• When a language or framework is unfamiliar, inspect local usage and toolchain evidence and lower confidence instead of applying rules from another ecosystem.

Validate candidates

Report a candidate only when all of the following hold:

• The evidence is observable in the selected scope and necessary context.
• The issue creates a concrete correctness, maintenance, debugging, or change-propagation cost.
• A plausible improvement reduces that cost without adding greater indirection or fragility.
• Confidence is at least 80%.

Treat file length, function length, any-like types, force unwraps, broad catches, fallbacks, comments, and repeated lines as investigation signals—not automatic findings. Respect explicit resilience boundaries, optional data, generated code, test scaffolding, and intentional local duplication.

Report findings

Lead with findings ordered by severity, then provide a short summary. Do not assign an overall letter grade; severity, confidence, evidence, and impact carry the assessment.

For each finding include:

### [high|medium|low] Concise title
- Location: `path:line`
- Lens: contracts | responsibility | failure-integrity | duplication
- Confidence: 80-100%
- Evidence: What the code does and the relevant surrounding context.
- Impact: The concrete failure mode or maintenance cost.
- Recommendation: The smallest change that addresses the cause.

Use high for likely correctness, data, or security failures; medium for material maintenance, debugging, or change-propagation costs; and low for bounded issues worth addressing. If no qualifying findings exist, say so directly and note any limits in scope.

Claude Code adapter

Claude Code users may invoke /unslopify for a standalone install or /unslopify:unslopify for the plugin, optionally with --types, --srp, --fail-fast, --dry, or --sequential. Map the lens flags to contracts, responsibility, failure-integrity, and duplication respectively; treat --sequential as disabling parallel workers and remaining arguments as the explicit review scope. Other agents should follow this file directly.