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/earthmanweb/claude-flow-plugin/challengesgit clone --depth 1 https://github.com/EarthmanWeb/claude-flow-pluginWhat 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 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.
This is a copy
100% identical to flow-nexus-challenges — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
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.
- 2d ago First seen · 120 lines · 14 tokens per session scan A 5ab45467885d
flow-nexus-challenges is a command published in the GitHub repository EarthmanWeb/claude-flow-plugin (2 stars, last pushed 7mo ago), 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. It is 100% identical to flow-nexus-challenges, differing in 0 lines, and is treated as a copy.
Other commands, from other repositories
git
Git operations with intelligent commit messages and workflow optimization.
checklist
Generate a custom checklist for the current feature based on user requirements.
clarify
Identify underspecified areas in the current feature spec by asking up to 5 highly targeted clarification questions and encoding answers back into the spec.
specify
Create or update the feature specification from a natural language feature description.
analyze
Perform a non-destructive cross-artifact consistency and quality analysis across spec.md, plan.md, and tasks.md after task generation.
constitution
Create or update the project constitution from interactive or provided principle inputs.