roadrunner

roadrunner is a skill for Claude Code, Codex from ncssm-robotics/ftc-claude. It costs 68 tokens per session (2,594 once invoked), scanned A, original, MIT.

A guide for using RoadRunner 1.0, an FTC robotics library that plans and follows robot movement along lines, curves, and combined routes.

In plain words
What is it for?
Use it to build trajectories and spline paths, configure motion and localization, tune drive settings, combine actions, and convert coordinates for RoadRunner.
Why use it?
It provides established patterns for autonomous driving, motion tuning, location tracking, and coordinating several robot actions.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Claude Code; mentions Codex.

Good fit Use it to build trajectories and spline paths, configure motion and localization, tune drive settings, combine actions, and convert coordinates for RoadRunner.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ncssm-robotics/ftc-claude/roadrunner
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.

Any agent
npx skills add ncssm-robotics/ftc-claude --skill roadrunner
Clone the repo
git clone --depth 1 https://github.com/ncssm-robotics/ftc-claude

Made for: Claude Code, Codex.

Its marketplace also offers this one on its own, as the plugin roadrunner/plugin install roadrunner after adding the marketplace above.

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 roadrunner

README.md
[![agentmods](https://agentmods.dev/badge/skills/ncssm-robotics/ftc-claude/roadrunner/github.svg)](https://agentmods.dev/skills/ncssm-robotics/ftc-claude/roadrunner)
Your own site
<a href="https://agentmods.dev/skills/ncssm-robotics/ftc-claude/roadrunner"><img src="https://agentmods.dev/badge/skills/ncssm-robotics/ftc-claude/roadrunner/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 roadrunner

Your own site · 80×15
<a href="https://agentmods.dev/skills/ncssm-robotics/ftc-claude/roadrunner"><img src="https://agentmods.dev/badge/skills/ncssm-robotics/ftc-claude/roadrunner.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 68 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,594 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 $0.00068 $0.02594
Opus 5 $0.00034 $0.01297
Sonnet 5 $0.00014 $0.00519
Haiku 4.5 $0.00007 $0.00259

Measured 8d ago against content hash 04d054b4299a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

roadrunner 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 8d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/convert.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

plugins/roadrunner/skills/roadrunner/SKILL.md · 371 lines

How it starts

The opening of the file, as written. The whole thing — 371 lines — stays where its author put it; the contents beside it link to each section on GitHub.

RoadRunner Path Planning

RoadRunner is a motion planning library for FTC that provides trajectory following, feedforward control, and advanced path building. Version 1.0 introduced a new Actions-based API for composing autonomous routines.

Quick Start

Option 1: Quickstart Project (Recommended)

Clone the pre-configured project:

git clone https://github.com/acmerobotics/road-runner-quickstart.git

Option 2: Add to Existing Project

Add to TeamCode/build.gradle:

repositories {
    maven {
        url = 'https://maven.brott.dev/'
    }
}

dependencies {
    implementation "com.acmerobotics.roadrunner:ftc:0.1.25"
    implementation "com.acmerobotics.roadrunner:core:1.0.1"
    implementation "com.acmerobotics.roadrunner:actions:1.0.1"
    implementation "com.acmerobotics.dashboard:dashboard:0.5.1"
}

Then copy the tuning OpModes from the quickstart's TeamCode/src/main/java/org/firstinspires/ftc/teamcode folder (including messages and tuning subdirectories).

Basic Autonomous

@Autonomous(name = "Basic Auto")
public class BasicAuto extends LinearOpMode {
    @Override
    public void runOpMode() {
        MecanumDrive drive = new MecanumDrive(hardwareMap, new Pose2d(0, 0, 0));

        Action trajectory = drive.actionBuilder(new Pose2d(0, 0, 0))
            .lineToX(48)
            .turn(Math.PI / 2)
            .lineToY(48)
            .build();

        waitForStart();

        Actions.runBlocking(trajectory);
    }
}

Key Concepts

Term Description
Action Smallest unit of robot behavior. Returns true while running, false when complete
Trajectory A planned path with motion profile (velocity/acceleration constraints)
Pose2d Robot position and heading: new Pose2d(x, y, heading)
Vector2d 2D position without heading: new Vector2d(x, y)
Feedforward Open-loop motor control using kS, kV, kA constants
inPerTick Encoder conversion factor: inches traveled per encoder tick
trackWidthTicks Distance between drive wheels in encoder ticks

Read the full file on GitHub · 371 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 8d ago First seen · 371 lines · 68 tokens per session scan A 04d054b4299a

Subscribe to this mod's changes

roadrunner is a skill published in the GitHub repository ncssm-robotics/ftc-claude (4 stars, last pushed 7mo ago), licensed MIT. It adds 68 tokens to every session and 2,594 once invoked, about $0.0003 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.

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