frontend-performance-engineer

frontend-performance-engineer is a command for Claude Code from kellvembarbosa/team-orchestrator. It costs 8 tokens per session (128 once invoked), scanned A, original, Apache-2.0.

A preconfigured team of coding agents that examines risks, meaning possible problems, losses, or unwanted outcomes.

In plain words
What is it for?
Use it to assess risks in plans, projects, or decisions with optional extra context.
Why use it?
It adds a structured review of what could go wrong before you act.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the team plugin — 32 commands shipped together

Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add kellvembarbosa/team-orchestrator
Claude Code
/plugin install team

Made for: Claude Code.

Or install team, the plugin that ships this one along with the rest of its 32 commands.

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 frontend-performance-engineer

README.md
[![agentmods](https://agentmods.dev/badge/commands/kellvembarbosa/team-orchestrator/frontend-performance-engineer.svg)](https://agentmods.dev/commands/kellvembarbosa/team-orchestrator/frontend-performance-engineer)
Your own site
<a href="https://agentmods.dev/commands/kellvembarbosa/team-orchestrator/frontend-performance-engineer"><img src="https://agentmods.dev/badge/commands/kellvembarbosa/team-orchestrator/frontend-performance-engineer.svg" alt="Measured on agentmods" height="20"></a>
Per session 8 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 128 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 5.1 $0.00008 $0.00128
Opus 5 $0.00004 $0.00064
Sonnet 5 $0.00002 $0.00026
Haiku 4.5 $0.00001 $0.00013

Measured 6d ago against content hash c8355be459bb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

frontend-performance-engineer 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 6d 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.

commands/frontend-performance-engineer.md · 12 lines

What it actually says

Spawn an agent team named "frontend-performance-engineer" using the stored team definition.

  1. Read the team configuration from ${CLAUDE_PLUGIN_ROOT}/teams/frontend-performance-engineer.md. Frontmatter may include model and size hints; body holds the team's instructions.
  2. Create an agent team that follows those instructions. Honor model and size hints if present.
  3. Incorporate this additional user context into the spawn prompt (may be empty): $ARGUMENTS
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. 6d ago First seen · 12 lines · 8 tokens per session scan A c8355be459bb

Subscribe to this mod's changes

frontend-performance-engineer is a command published in the GitHub repository kellvembarbosa/team-orchestrator (4 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 8 tokens to every session and 128 once invoked, about $0.0000 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 2026-08-31.