Skill Claude CodeCodex
Audits an entity model field by field: what should exist, what exists now, where each value belongs (column, config, computed runtime value, or removal), and what must migrate. Use when comparing a PRD with a schema/model, designing entity fields, or deciding “store or compute?”, “column or JSON?”, or “does this field…
Skill Codex
Challenges an overly conservative, incremental, or compatibility-led proposal with a bold target model, a concrete kill/merge/split list, materially different options, and a falsifiable first proof point. Use when the user asks to think bigger, open the design space, or imagine the clean target without legacy…
Skill Codex
Pressure-tests an ambitious proposal and returns a landing judgment, one minimum viable proof, explicit cuts, success/failure signals, and a stop rule. Use when a direction has more vision than executable grounding or the user asks how to land it, reduce first-step scope, price risk, or define…
Skill Codex
An architecture review based on evidence from the codebase and on John Ousterhout’s software-design principles. It maps the system, identifies its main complexity center, applies selected review viewpoints, and ranks findings with file and line evidence.
Skill Claude CodeCodex
Produces a ready-to-run ast-grep command or reusable YAML lint/codemod rule, validated against positive and negative fixtures. Use when search or rewrite depends on syntax structure: finding all call shapes, avoiding regex matches in comments/strings, batch-changing signatures, or enforcing a structural…
Skill Codex
A written planning document created before execution begins. It defines a verifiable goal, boundaries, current state, phases, tasks with proof, a dry run, and a decision to proceed or stop.
Skill Codex
Evaluates whether an idea, feature, product, or project deserves attention and returns one verdict—Do, Validate first, Reframe, Defer, or Kill—plus the strongest objection and cheapest decision-changing test. Use when the user asks whether something is worth doing, is a fake need or distraction, should be…
Skill Claude CodeCodex
A naming aid that suggests several names, recommends one, and explains how it arrived at the choice.
Skill Codex
A product requirements document, or PRD, review and drafting aid. A PRD describes a product problem, its intended behavior, and how to tell whether it is complete.
Skill Codex
A review aid that checks whether each part of a system or plan needs to exist and gives it a Keep, Merge, Defer, Delete, Replace, or Prove-first verdict.
Skill Claude CodeCodex
Rebuilds a drifted, repeatedly patched document from verified current conclusions. It inventories old blocks, preserves verified wording, removes disproved material, writes authoritative replacement coverage only from verified sources, and reports keep/delete/replace/undecided dispositions. Use when the user wants a…
Skill Codex
A test-driven development, or TDD, implementation aid. TDD writes a test that fails first, makes the smallest change that passes it, and then considers cleanup.
Skill Claude CodeCodex
A formatting skill for restructuring README files and similar Markdown project documents.
Skill Codex
A review process for software changes that checks correctness, security, maintainability, architecture, performance, and missing verification. It can also inspect a local codebase for code smells, meaning patterns that may make code harder to maintain.
Skill Codex
A documentation audit that compares written material with code, configuration, schemas, and approved agreements. It looks for contradictions, outdated statements, and inconsistent terminology.
Skill Codex
A method for finding the cause of an unexplained software failure by reproducing it, testing competing explanations, and using the evidence to form a causal explanation.
Skill Codex
A process for checking a software change against its requirements and producing an evidence-based acceptance report. The report can connect each requirement to evidence, record test results and risks, and give a release decision.
Skill Codex
A writing and review guide for Simplified Technical English, ASD-STE100, and its Chinese adaptation. It uses short sentences, one word for each concept, named actors, clear conditions, and explicit warnings and steps.
Skill Codex
A content-to-visual tool that turns supplied material into self-contained HTML pages and PNG images. It supports single cards for shareable points and multi-section reports for documents such as plans and reviews.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: