Ruflo is an execution and coordination layer for Claude Code and Codex that equips AI coding agents with tools, memory, control loops, sandboxes, and collaboration mechanisms. Developers use it to organize specialized agents into swarms, coordinate workflows, retain knowledge across sessions, and communicate across machines. The catalogue entries are Ruflo’s skills, commands, agents, hooks, and plugin components.
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.
npx agentmods add commands/ruvnet/ruflo/challengesgit clone --depth 1 https://github.com/ruvnet/rufloWrote 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.
[](https://agentmods.dev/commands/ruvnet/ruflo/challenges)<a href="https://agentmods.dev/commands/ruvnet/ruflo/challenges"><img src="https://agentmods.dev/badge/commands/ruvnet/ruflo/challenges.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00014 | $0.00667 |
| Opus 5 | $0.00007 | $0.00333 |
| Sonnet 5 | $0.00003 | $0.00133 |
| Haiku 4.5 | $0.00001 | $0.00067 |
Grade A, and why
flow-nexus-challenges 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 yesterday.
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.
Copies of this mod
7 near-identical copies found in the catalogue:
- flow-nexus-challenges — 100% identical, 0 lines differ
- flow-nexus-challenges — 100% identical, 0 lines differ
- flow-nexus-challenges — 100% identical, 0 lines differ
- flow-nexus-challenges — 100% identical, 117 lines differ
- flow-nexus-challenges — 100% identical, 0 lines differ
- flow-nexus-challenges — 100% identical, 0 lines differ
- flow-nexus-challenges — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 120 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Flow Nexus Challenges
Complete coding challenges to earn rUv credits and climb the leaderboard.
List Challenges
mcp__flow-nexus__challenges_list({
difficulty: "intermediate", // beginner, advanced, expert
category: "algorithms",
status: "active",
limit: 20
})
Get Challenge Details
mcp__flow-nexus__challenge_get({
challenge_id: "two-sum-problem"
})
Submit Solution
mcp__flow-nexus__challenge_submit({
challenge_id: "challenge_id",
user_id: "your_id",
solution_code: `
function solution(nums, target) {
const map = new Map();
for (let i = 0; i < nums.length; i++) {
const complement = target - nums[i];
if (map.has(complement)) {
return [map.get(complement), i];
}
map.set(nums[i], i);
}
return [];
}
`,
language: "javascript",
execution_time: 45 // milliseconds
})
Complete Challenge
mcp__flow-nexus__app_store_complete_challenge({
challenge_id: "challenge_id",
user_id: "your_id",
submission_data: {
passed_tests: 10,
total_tests: 10,
execution_time: 45
}
})
Leaderboards
// Global leaderboard
mcp__flow-nexus__leaderboard_get({
type: "global", // weekly, monthly, challenge
limit: 10
})
// Challenge-specific leaderboard
mcp__flow-nexus__leaderboard_get({
type: "challenge",
challenge_id: "specific_challenge",
limit: 25
})
Achievements
mcp__flow-nexus__achievements_list({
user_id: "your_id",
category: "speed_demon" // Categories vary
})
rUv Credits
// Check balance
mcp__flow-nexus__ruv_balance({ user_id: "your_id" })
// View history
mcp__flow-nexus__ruv_history({
user_id: "your_id",
limit: 20
})
// Earn credits (automatic on completion)
mcp__flow-nexus__app_store_earn_ruv({
user_id: "your_id",
amount: 100,
reason: "Completed expert challenge",
source: "challenge"
})
Challenge Categories
- algorithms: Classic algorithm problems
- data-structures: DS implementation challenges
- system-design: Architecture challenges
- optimization: Performance challenges
- security: Security-focused problems
- ml-basics: Machine learning fundamentals
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.
- yesterday First seen · 120 lines · 14 tokens per session scan A 5ab45467885d
flow-nexus-challenges is a command published in the GitHub repository ruvnet/ruflo (70,498 stars, last pushed today), licensed MIT. It adds 14 tokens to every session and 667 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 2026-09-03.
Other commands, from other repositories
launch
Preview the public launch — the file bundle, the secret/PII scan, and the release gates — in dry-run mode, cut a release by deriving its version and composing its changelog, and scaffold the changelog-driven release gate into a managed repo. The preview performs zero writes; ship writes the dated CHANGELOG heading and…
disembark
Pack a lifeboat from a repository into a destination directory — read-only over the source, behind a destination safety gate, secret-scanned before any write. Point it at any repo (including a dead or archived one) and write the lifeboat elsewhere.
briefing
Structured pre-execution briefing session -- collects case context through specialist panel, builds execution plan, supports resume and depth control.
legal-goal
Define a checkable legal success condition for /legal-loop. Accepts a named profile (citations-clean, draft-passes-gate, adversarial-converge, nda-batch-clean, reg-watch, timeline-sourced) or free-text objective. Produces a persisted Goal Record — never starts work itself.
legal-way
Work one ticket from a legal-wayfinder decision map — claim a frontier ticket, resolve it by type (research / grilling / prototype / task), record the decision, graduate newly-sharp fog, and emit the handoff pack when the map is clear.
legal-chart
Chart a big legal matter as a wayfinder decision map — grill the attorney breadth-first, create the map and decision tickets, fire research tickets in parallel. Planning only: charting resolves no decisions itself.