Menu

Individual skill

adversarial-ts-patterns

Use this skill to gate TypeScript and React application code with a pass/fail adversarial review of design-pattern usage — a single blind reviewer subagent judges a diff or file set against 18 decidable rules covering implicit state machines (boolean-flag lifecycles, useEffect chains, stored derived state, non-exhaustive union matches) and over-engineered OO/enterprise ports (getInstance singletons, factory and builder classes, single-method strategy classes, State/Visitor hierarchies, event buses inside a React tree, pass-through repositories, DI containers, single-implementation interfaces, component inheritance, logic-only HOCs, static-only classes, trivial accessors). Trigger it before merging TS/React work, when asked to gate or pass/fail pattern usage, or as a check that agent-authored code is not porting Java/C# idioms. It renders verdicts only; for teaching-style guidance use implementation-design-patterns or implementation-functional-patterns.

skills/.experimental/adversarial-ts-patterns/SKILL.md

Read pinned source

Source commit cf93c57cac89d6fc3e4194686000411567f5caf3

What was checked

Matches the observed repository HEAD
Yes
Scanner rules are current
No
Repository scan complete
No
Skill scan complete
No
Observed behavior
Not checked yet
Last checked
Nov 5, 2026

These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.

Install this skill

Choose an agent in your Stack or copy a command below. Commands fetch the pinned commit and copy only this skill directory. Existing destinations are refused. Copying a command does not install anything.

An install command is unavailable: current rules, complete repository and skill scans, an eligible behavior level and a permitted license are required.

Repository context

Repository stars (not skill ratings)
222
Repository last updated
Aug 15, 2026
License
MIT

Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.

Files and excerpt

File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.

Browse files
Read excerpt

# Adversarial TS Patterns Gate

A design-pattern usage gate for TypeScript and React application code — a pass/fail gate: a single blind reviewer subagent judges the work against this gate's rules with an adversarial mandate, and the work passes only when every rule is PASS or N/A. This skill renders verdicts; it never fixes the work.

The gate judges in both directions. **Over-abstraction** — Gang of Four and enterprise machinery ported from Java/C# where idiomatic TypeScript reaches for a function, a module, or a tagged union. **Under-modeling** — implicit state machines whose impossible states compile: boolean-flag lifecycles, effect chains, hand-synced derived state, silent `default` branches.

## When to Apply

- A TypeScript/React diff or feature is about to merge and needs an objective PASS/FAIL on pattern usage, not advisory feedback.
- An agent (Claude, Codex) authored the code and you want an independent check that it is not reproducing Java/C# training-data idioms — Singleton classes, factory hierarchies, repository wrappers, JavaBean accessors.
- A migration from another stack (Java, C#, Angular-style DI) claims completion and the ported architecture needs auditing for layers that lost their justification in TypeScript.
- Component or store state grew organically and you want the implicit-state-machine failure modes (contradictory booleans, effect chains, non-exhaustive matches) caught before they ship.

Do not apply to non-TypeScript codebases (the reviewer prompt's precondition aborts with "GATE NOT APPLICABLE"), or when the user wants explanations and refactors rather than a verdict — that is the job of the curated `implementation-design-patterns` and `implementation-functional-patterns` skills. React-specific rules go N/A in non-React TypeScript projects; the rest of the gate works in any TypeScript application.