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fusebase-flow: Agent for Claude Code

.claude/agents/app-create-checker.md

app-create-checker is an agent for Claude Code from fusebase-dev/fusebase-flow. It costs 32 tokens per session (278 once invoked), scanned A, original, MIT.

An app-registration checker that compares generated app folders with the entries in fusebase.json, the project file that tells FuseBase which apps exist and how to run them.

In plain words
What is it for?
Use it after scaffolding an app to verify that its folder and run settings are registered. If it is missing, it tells you to register the app with the FuseBase command-line tool.
Why use it?
It catches a newly created app that is present on disk but missing from the project configuration, so FuseBase would not know to use it.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

This is fusebase-dev/fusebase-flow's own configuration. It tells Claude Code how to work on fusebase-flow itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything fusebase-flow configures →

Part of the fusebase-flow plugin — 56 skills, 8 commands, 4 agents shipped together

not rated 9repo 13d ago A scan 32 tokens original MIT
View source ↗ fusebase-dev/fusebase-flow ai-dev.thefusebase.com
Reuse

Borrowing it

Nothing to install: this file belongs to fusebase-dev/fusebase-flow. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/fusebase-dev/fusebase-flow/main/.claude/agents/app-create-checker.md
Clone the repo
git clone --depth 1 https://github.com/fusebase-dev/fusebase-flow

Made for: Claude Code.

Or install fusebase-flow, the plugin that ships this one along with the rest of its 56 skills, 8 commands, 4 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 app-create-checker

README.md
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Your own site
<a href="https://agentmods.dev/agents/fusebase-dev/fusebase-flow/app-create-checker"><img src="https://agentmods.dev/badge/agents/fusebase-dev/fusebase-flow/app-create-checker/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 app-create-checker

Your own site · 80×15
<a href="https://agentmods.dev/agents/fusebase-dev/fusebase-flow/app-create-checker"><img src="https://agentmods.dev/badge/agents/fusebase-dev/fusebase-flow/app-create-checker.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 32 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 278 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 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 5.1 $0.00032 $0.00278
Opus 5.5 $0.00013 $0.00111
Sonnet 5.5 $0.00006 $0.00056
Haiku 4.5 $0.00003 $0.00028

Measured 2mo ago against content hash 4832244beed2, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

app-create-checker 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 2mo 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

Copies of this mod

1 near-identical copy found in the catalogue:

.claude/agents/app-create-checker.md · 41 lines

What it actually says

Your mission: verify that the created app is registered in fusebase.json file.

For example folder apps has the following subfolders:

  • disco-planner
  • fitness-tracker

and fusebase.json has the following content:

{
  "orgId": "u3b",
  "productId": "bka5dyb8aqnwykiw",
  "apps": [
    {
      "id": "8cdbmfjzwskp1myp",
      "path": "apps/disco-planner",
      "dev": {
        "command": "npm run dev"
      },
      "build": {
        "command": "npm run build",
        "outputDir": "dist"
      }
    }
  ]
}

It means that only the app in the folder "disco-planner" is registered, but the app in the folder "fitness-tracker" is not registered.

So if the created app is not registered you should respond with the following message:

The app is not registered, please run fusebase CLI with appropiate command to register the app.

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. 2mo ago First seen · 41 lines · 32 tokens per session scan A 4832244beed2

Subscribe to this mod's changes

app-create-checker is an agent published in the GitHub repository fusebase-dev/fusebase-flow (9 stars, last pushed 13d ago), licensed MIT. It adds 32 tokens to every session and 278 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-09-08.

Claude CodeDebuggingai-coding-assistantcodexcursorfusebasegithub-copilot
Related

app-create-checker compared with agents from other repositories

app-create-checker next to 6 agents from other repositories
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app-create-checkerfusebase-dev/fusebase-flowAgent913d agoMITA32Claude Code
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swift-refactorerNagarjuna2997/ios-agent-skillAgent4110d agoMITA57Claude Code
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