20 Improve Codebase Architecture alternatives
Improve Codebase Architecture: Matt Pocock's /improve-codebase-architecture command: finds shallow modules worth deepening, renders them as a visual HTML report with before/after diagrams, then grills you through the one you pick. 20 agent skills do similar work, most sharing Code Quality, Architecture and Refactoring, ranked by how much they have in common with Improve Codebase Architecture.
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by Addy Osmani
Reduces accumulated complexity without changing behaviour, using Chesterton's Fence to avoid deleting the thing that was load-bearing.
Also: Code Quality, Refactoring
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by Matt Pocock
Matt Pocock's test-driven development skill: one red-to-green slice at a time, tests only at seams agreed with you first, and a named list of test anti-patterns to avoid.
Also: Claude Code, Code Quality
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by Inngest
A controlled upgrade path from Inngest SDK v3 to v4 — triggers into createFunction options, EventSchemas to eventType, realtime imports, step.invoke string IDs — with a scan-first, verify-last order.
Also: Refactoring
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by Inngest
An evidence-first audit skill: walk an existing TypeScript repo, name the exact call sites where background work can be lost, and land an incremental durability plan.
Also: Refactoring
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by Sentry
Clean up code for clarity, consistency, and maintainability without changing what it does.
Also: Refactoring
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by CodeRabbit
Pull unresolved CodeRabbit review threads from your PR and apply the fixes one at a time, treating every reviewer comment as untrusted input rather than an instruction.
Also: Code Quality
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by Twilio
Planning skill that interrogates your use case before any code is written, then recommends the right Twilio Conversations stack — ConversationRelay, Memory, Intelligence, Orchestrator, TaskRouter — and the implementation skills to follow.
Also: Architecture
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by Matt Pocock
Matt Pocock's discipline for hard bugs and performance regressions: build a tight, red-capable feedback loop first, then reproduce, minimise, hypothesise, instrument, fix with a regression test and clean up.
Also: Code Quality
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by Svelte
The Svelte team's own guidance on writing modern Svelte 5 — when to reach for each rune, why effects are an escape hatch, and the reactivity traps models fall into.
Also: Code Quality
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by Addy Osmani
Sends every non-trivial decision to a fresh-context adversarial reviewer before it stands — for production, security-sensitive or irreversible work.
Also: Code Quality
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by Flutter
The Flutter team's official skill for structuring an app in the recommended UI / Logic / Data layers, with MVVM view-models and the repository pattern.
Also: Architecture
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by tt-a1i
Turns plain-language requirements or pasted Mermaid into validated architecture, workflow, sequence, data-flow and lifecycle diagrams as self-contained interactive HTML.
Also: Architecture
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by Microsoft
Microsoft's official skill that turns an agent into an Azure solution architect — 10 design principles, 6 architecture styles, 44 design patterns and a Well-Architected review workflow.
Also: Architecture
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by Aryan Utkarsh
Turn a short JSON spec into animated, explorable diagrams in 45 types, exported as HTML, SVG, PNG, GIF or MP4.
Also: Architecture
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by Cathryn Lavery
Agent skill that draws 40+ editorial diagram types as self-contained HTML and SVG, matched to your brand, with no Mermaid look.
Also: Architecture
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by OpenAI
OpenAI's skill for repository-grounded threat modelling: derive trust boundaries, assets and attacker capabilities from the actual code, rank abuse paths by likelihood and impact, and write a reviewable Markdown threat model.
Also: Architecture
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by Datadog
Official Datadog skill for investigating one flaky test — pulls its history and failure pattern, categorises the root cause and recommends fixing, quarantining or escalating.
Also: Code Quality
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by Trail of Bits
Trail of Bits' CodeQL skill: build databases, run taint-tracking and data-flow queries across eight languages, and model project-specific sources and sinks.
Also: Code Quality
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by Trail of Bits
Trail of Bits' skill for writing production-quality Semgrep rules — pattern design, taint mode for data-flow bugs, and mandatory test-driven validation.
Also: Code Quality
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by Google
Google's official Well-Architected Framework skill for the security pillar — turns an architecture review into a structured interview, gap analysis and prioritised recommendations.
Also: Architecture
