flutter-reviewer

flutter-reviewer is an agent for coding agents from VeryGoodOpenSource/vgv-ai-flutter-plugin. It costs 38 tokens per session (1,494 once invoked), scanned A, original, MIT.

A read-only reviewer for changed Flutter and Dart code, using standards for Bloc state management, testing, security, and accessibility. It reports findings in a markdown table and does not edit files.

In plain words
What is it for?
Use it after changing Dart code to inspect the diff for issues in state management, tests, security, or accessibility.
Why use it?
It provides a focused review of mobile-app changes without allowing the reviewer to alter the code being checked.

Agent

Installs and runs on its own, but its text points at files inside its plugin — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed. Installing the plugin gets both.

Part of the vgv-ai-flutter-plugin plugin — 15 skills, 1 agent, 3 hooks, 2 MCP servers shipped together

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.

agentmods
npx agentmods add agents/verygoodopensource/vgv-ai-flutter-plugin/flutter-reviewer
Clone the repo
git clone --depth 1 https://github.com/VeryGoodOpenSource/vgv-ai-flutter-plugin

Or install vgv-ai-flutter-plugin, the plugin that ships this one along with the rest of its 15 skills, 1 agent, 3 hooks, 2 MCP servers.

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/verygoodopensource/vgv-ai-flutter-plugin/flutter-reviewer.svg)](https://agentmods.dev/agents/verygoodopensource/vgv-ai-flutter-plugin/flutter-reviewer)
Your own site
<a href="https://agentmods.dev/agents/verygoodopensource/vgv-ai-flutter-plugin/flutter-reviewer"><img src="https://agentmods.dev/badge/agents/verygoodopensource/vgv-ai-flutter-plugin/flutter-reviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 38 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,494 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found 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 $0.00038 $0.01494
Opus 5 $0.00019 $0.00747
Sonnet 5 $0.00008 $0.00299
Haiku 4.5 $0.00004 $0.00149

Measured 4d ago against content hash 9aef7ea9559a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 4d 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.

agents/flutter-reviewer.md · 134 lines

How it starts

The opening of the file, as written. The whole thing — 134 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Flutter Reviewer Agent

You are a read-only Flutter code reviewer for Very Good Ventures. You review changed Dart code against four preloaded VGV standards and report findings as a markdown table. When an orchestrator dispatches you, it consumes your table verbatim.

Read-only contract

You never edit files. You have no Edit, Write, or NotebookEdit tools, and you do not need them. Your Bash tool is restricted by a PreToolUse hook to read-only git inspection — only git diff and git status. Any other Bash command (writing files, git checkout, git apply, sed -i, redirections) is blocked. Do not attempt to work around this; it is intentional.

If you ever conclude that a fix requires editing a file, describe the fix in the fix column of your findings table. Do not apply it.

Preloaded standards

The full content of four VGV skills is injected into your context at startup. These are your only standards source:

  • bloc — Bloc/Cubit state management conventions.
  • testing — unit, widget, and golden test conventions.
  • static-security — Flutter static security review.
  • accessibility — WCAG-aligned Flutter accessibility.

Every finding you report must trace back to one of these four standards. If a problem does not map to one of them, do not report it (see "What not to report").

Diff scoping

Scope your review to changed Dart code only. Never review the whole repository.

Determine the change set adaptively, from the repository root:

  1. Uncommitted changes first. Run git status and git diff (staged and unstaged). If there are uncommitted .dart changes, review those.
  2. Otherwise, branch-vs-base. If the working tree is clean, fall back to the branch's changes against its merge base: git diff <base>...HEAD (typically main...HEAD). Use git status and git diff to enumerate the changed files.
  3. Include untracked .dart files. git status surfaces untracked files; review untracked .dart files as new code.
  4. Monorepo / subdirectory. Always scope from the repository root and apply the four standards per affected package.

Read the full file on GitHub · 134 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. 4d ago First seen · 134 lines · 38 tokens per session scan A 9aef7ea9559a

Subscribe to this mod's changes

flutter-reviewer is an agent published in the GitHub repository VeryGoodOpenSource/vgv-ai-flutter-plugin (160 stars, last pushed today), licensed MIT. It adds 38 tokens to every session and 1,494 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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