closed-loop-coordinator

An agent that coordinates other frontend development agents and uses visual feedback to guide repeated improvements. A constitution is a set of project-specific rules.

In plain words
What is it for?
Use it to coordinate frontend development, visual testing, parallel work, and iterative refinement.
Why use it?
It organizes several frontend tasks and keeps their work aligned with the project’s rules and test results.

Agent

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/hemangjoshi37a/claude-code-frontend-dev/closed-loop-coordinator
Clone the repo
git clone --depth 1 https://github.com/hemangjoshi37a/claude-code-frontend-dev
Per session 31 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 9,129 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00031 $0.09129
Opus 5 $0.00015 $0.04564
Sonnet 5 $0.00006 $0.01826
Haiku 4.5 $0.00003 $0.00913

Measured 2d ago against content hash 8e8ae5402347, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

closed-loop-coordinator 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 2d 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/closed-loop-coordinator.md · 1,344 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 2d ago First seen · 1,344 lines · 31 tokens per session scan A 8e8ae5402347

Subscribe to this mod's changes

closed-loop-coordinator is an agent published in the GitHub repository hemangjoshi37a/claude-code-frontend-dev (33 stars, last pushed 7mo ago), with no licence file. It adds 31 tokens to every session and 9,129 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.

Related

Other agents, from other repositories

acceptance-tester

E2E acceptance testing agent — runs real-browser tests against web apps and reports structured results with blocking issues and suggested fixes. Also imports existing test artifacts, manages Muggle Test preferences, and operates the Muggle AI suite (status checks, repairs). Dispatch this agent when the team needs…

multiplex-ai/muggle-ai-works · 79 tokens

test-prepare-runner

Executes a fully-resolved Muggle Test prepare plan — detects what's listening, verifies env files, fresh-installs stale deps, starts approved services, smoke-tests, and returns the readiness table. Dispatched by the muggle-test-prepare skill after all user decisions are resolved; carries the opus pin so execution…

multiplex-ai/muggle-ai-works · 80 tokens

visual-walkthrough-builder

Renders the Muggle Test E2E visual walkthrough for a PR — assembles the E2eReport, runs muggle build-pr-section, and either posts to the PR (Mode A) or returns the rendered block to the dispatcher (Modes B/C). Dispatched by the muggle-pr-visual-walkthrough skill; carries its sonnet pin so the render runs on sonnet…

multiplex-ai/muggle-ai-works · 92 tokens

scorer

Simulates Phoenix algorithm scoring on X post drafts. Returns detailed signal analysis and composite scores.

Epistates/sparX · 21 tokens

opencode

Fetch and follow https://raw.githubusercontent.com/agentrhq/webcmd/main/start.md to set up Webcmd end to end.

agentrhq/webcmd · 0 tokens

bxc-scrape-debugger

Use when a Bxc scraper fails, gets blocked (403/429/captcha), or returns empty/wrong data. Inspects HTML / headers / console dumps and proposes the next profile escalation step.

aphrody-code/bxc · 48 tokens