fiber-setup

A setup command for connecting Fiber AI to an environment. Fiber AI is a service that provides the API and tools used by the related skills.

In plain words
What is it for?
Use it to set the FIBER_API_KEY value, make it persist in the shell profile, check the Fiber connection, or install the Fiber SDK for TypeScript or Python.
Why use it?
It checks whether the required API key exists and helps the user configure it when it does not. It also verifies that the tool connection works.

Command

Part of the fiber plugin — 16 skills, 4 commands, 7 agents, 3 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 commands/fiber-ai/fiber-ai-plugin/fiber-setup
Clone the repo
git clone --depth 1 https://github.com/fiber-ai/fiber-ai-plugin

Or install fiber, the plugin that ships this one along with the rest of its 16 skills, 4 commands, 7 agents, 3 MCP servers.

Per session 13 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 145 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 $0.00013 $0.00145
Opus 5 $0.00006 $0.00072
Sonnet 5 $0.00003 $0.00029
Haiku 4.5 $0.00001 $0.00015

Measured 2d ago against content hash 06e03216be9d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

fiber-setup 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.

cursor/commands/fiber-setup.md · 16 lines

What it actually says

Help the user set up Fiber AI in their environment.

  1. Check if FIBER_API_KEY environment variable is set
  2. If not set, instruct user to get their key from https://fiber.ai/app/api and set it:
    export FIBER_API_KEY=sk_live_...
    
    Add to shell profile for persistence.
  3. Verify MCP connection by calling any tool (e.g., check credits via Core MCP)
  4. If user needs the SDK: npm install @fiberai/sdk (TypeScript) or pip install fiberai (Python)
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 · 16 lines · 13 tokens per session scan A 06e03216be9d

Subscribe to this mod's changes

fiber-setup is a command published in the GitHub repository fiber-ai/fiber-ai-plugin (2 stars, last pushed 2mo ago), licensed MIT. It adds 13 tokens to every session and 145 once invoked, about $0.0001 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.