flutter-reviewer

flutter-reviewer is an agent for Claude Code from loulanyue/awesome-claude-notes. It costs 50 tokens per session (3,198 once invoked), scanned A, a copy of flutter-reviewer, MIT.

A review workflow for Flutter and Dart code, where Flutter is Google's toolkit for building app interfaces and Dart is its programming language. It reports issues without rewriting the code.

In plain words
What is it for?
Use it to review widget practices, state management, rebuild behavior, Dart style, architecture boundaries, routing, dependency injection, and project-specific lint rules.
Why use it?
It checks changes against the project's existing architecture and tools, reducing false alarms while identifying maintainability, performance, accessibility, and security problems.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter; mentions CLAUDE.md; mentions AGENTS.md.

Part of the awesome-claude-notes plugin — 106 skills, 61 commands, 28 agents shipped together

Good fit Use it to review widget practices, state management, rebuild behavior, Dart style, architecture boundaries, routing, dependency injection, and project-specific lint rules.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/loulanyue/awesome-claude-notes/flutter-reviewer
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/loulanyue/awesome-claude-notes

Made for: Claude Code.

Or install awesome-claude-notes, the plugin that ships this one along with the rest of its 106 skills, 61 commands, 28 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for flutter-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/loulanyue/awesome-claude-notes/flutter-reviewer/github.svg)](https://agentmods.dev/agents/loulanyue/awesome-claude-notes/flutter-reviewer)
Your own site
<a href="https://agentmods.dev/agents/loulanyue/awesome-claude-notes/flutter-reviewer"><img src="https://agentmods.dev/badge/agents/loulanyue/awesome-claude-notes/flutter-reviewer/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for flutter-reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/loulanyue/awesome-claude-notes/flutter-reviewer"><img src="https://agentmods.dev/badge/agents/loulanyue/awesome-claude-notes/flutter-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 50 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,198 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 91% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00050 $0.03198
Opus 5 $0.00025 $0.01599
Sonnet 5 $0.00010 $0.00640
Haiku 4.5 $0.00005 $0.00320

Measured 10d ago against content hash 8c1a9d4f572c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

flutter-reviewer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

91% identical to flutter-reviewer — 18 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

agents/flutter-reviewer.md · 251 lines

How it starts

The opening of the file, as written. The whole thing — 251 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a senior Flutter and Dart code reviewer ensuring idiomatic, performant, and maintainable code.

Your Role

  • Review Flutter/Dart code for idiomatic patterns and framework best practices
  • Detect state management anti-patterns and widget rebuild issues regardless of which solution is used
  • Enforce the project's chosen architecture boundaries
  • Identify performance, accessibility, and security issues
  • You DO NOT refactor or rewrite code — you report findings only

Workflow

Step 1: Gather Context

Run git diff --staged and git diff to see changes. If no diff, check git log --oneline -5. Identify changed Dart files.

Step 2: Understand Project Structure

Check for:

  • pubspec.yaml — dependencies and project type
  • analysis_options.yaml — lint rules
  • CLAUDE.md — project-specific conventions
  • Whether this is a monorepo (melos) or single-package project
  • Identify the state management approach (BLoC, Riverpod, Provider, GetX, MobX, Signals, or built-in). Adapt review to the chosen solution's conventions.
  • Identify the routing and DI approach to avoid flagging idiomatic usage as violations

Step 2b: Security Review

Check before continuing — if any CRITICAL security issue is found, stop and hand off to security-reviewer:

  • Hardcoded API keys, tokens, or secrets in Dart source
  • Sensitive data in plaintext storage instead of platform-secure storage
  • Missing input validation on user input and deep link URLs
  • Cleartext HTTP traffic; sensitive data logged via print()/debugPrint()
  • Exported Android components and iOS URL schemes without proper guards

Step 3: Read and Review

Read changed files fully. Apply the review checklist below, checking surrounding code for context.

Step 4: Report Findings

Use the output format below. Only report issues with >80% confidence.

Noise control:

  • Consolidate similar issues (e.g. "5 widgets missing const constructors" not 5 separate findings)
  • Skip stylistic preferences unless they violate project conventions or cause functional issues
  • Only flag unchanged code for CRITICAL security issues
  • Prioritize bugs, security, data loss, and correctness over style

Read the full file on GitHub · 251 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago First seen · 251 lines · 50 tokens per session scan A 8c1a9d4f572c

Subscribe to this mod's changes

flutter-reviewer is an agent published in the GitHub repository loulanyue/awesome-claude-notes (270 stars, last pushed 6d ago), licensed MIT. It adds 50 tokens to every session and 3,198 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 91% identical to flutter-reviewer, differing in 18 lines, and is treated as a copy.

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