competition-relay-coercion-chain

competition-relay-coercion-chain is a skill for Codex from Saprophytic-seattle561/reverse-skill. It costs 119 tokens per session (633 once invoked), scanned A, a copy of competition-relay-coercion-chain, MIT.

A specialized workflow for capture-the-flag security challenges where one service is forced to authenticate to another and that authentication is relayed elsewhere. It follows the forced login, captured authentication, relay target, acceptance point, and resulting privilege.

In plain words
What is it for?
Use it to analyze authentication-coercion triggers, captured credentials, relay protocols and services, target selection, and the evidence needed to reproduce the complete chain.
Why use it?
It distinguishes triggering authentication from successfully relaying it and gaining access. This prevents treating an incomplete relay attempt as a confirmed security impact.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: $skill-name invocation.

Good fit Use it to analyze authentication-coercion triggers, captured credentials, relay protocols and services, target selection, and the evidence needed to reproduce the complete chain.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/saprophytic-seattle561/reverse-skill/competition-relay-coercion-chain
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 Saprophytic-seattle561/reverse-skill --skill competition-relay-coercion-chain
Clone the repo
git clone --depth 1 https://github.com/Saprophytic-seattle561/reverse-skill

Made for: Codex.

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 competition-relay-coercion-chain

README.md
[![agentmods](https://agentmods.dev/badge/skills/saprophytic-seattle561/reverse-skill/competition-relay-coercion-chain/github.svg)](https://agentmods.dev/skills/saprophytic-seattle561/reverse-skill/competition-relay-coercion-chain)
Your own site
<a href="https://agentmods.dev/skills/saprophytic-seattle561/reverse-skill/competition-relay-coercion-chain"><img src="https://agentmods.dev/badge/skills/saprophytic-seattle561/reverse-skill/competition-relay-coercion-chain/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 competition-relay-coercion-chain

Your own site · 80×15
<a href="https://agentmods.dev/skills/saprophytic-seattle561/reverse-skill/competition-relay-coercion-chain"><img src="https://agentmods.dev/badge/skills/saprophytic-seattle561/reverse-skill/competition-relay-coercion-chain.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 119 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 633 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 100% copy Near-identical to another mod 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 $0.00119 $0.00633
Opus 5 $0.00060 $0.00316
Sonnet 5 $0.00024 $0.00127
Haiku 4.5 $0.00012 $0.00063

Measured 12d ago against content hash 0902a70e320e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

competition-relay-coercion-chain 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 12d 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.

Origin

This is a copy

100% identical to competition-relay-coercion-chain — 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.

CTF-Sandbox-Orchestrator/competition-relay-coercion-chain/SKILL.md · 51 lines

How it starts

The opening of the file, as written. The whole thing — 51 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Competition Relay Coercion Chain

Use this skill only as a downstream specialization after $ctf-sandbox-orchestrator is already active and has established sandbox assumptions, node ownership, and evidence priorities. If that has not happened yet, return to $ctf-sandbox-orchestrator first.

Use this skill when the hard part is proving the full chain from forced authentication to a service that actually accepts the relayed identity.

Reply in Simplified Chinese unless the user explicitly requests English.

Quick Start

  1. Split the chain into coercion source, captured auth, relay target, acceptance point, and resulting effect.
  2. Record transport, protocol, and service identity at each hop.
  3. Separate forced-auth generation from relay success and from downstream privilege.
  4. Keep coercion trigger, relay transcript, and accepting service in one evidence chain.
  5. Reproduce the smallest coercion-to-acceptance path that proves the decisive edge.

Workflow

1. Map The Coercion Source

  • Identify the service, RPC, file path, printer path, WebDAV edge, or protocol trigger that forces authentication.
  • Record source host, coerced principal, transport, and any environmental preconditions.
  • Keep one compact note of exactly what causes the auth to leave the source.

2. Trace The Relay Target

  • Record where the authentication lands, how it is forwarded, and which protocol or service consumes it.
  • Distinguish capture-only, replay-only, and actual relay acceptance.
  • Keep service name, target host, protocol, relay transcript, and acceptance response tied together.

3. Reduce To The Decisive Relay Chain

  • Compress the result to the smallest sequence: coercion trigger -> relayed auth -> accepted service -> resulting privilege or artifact.
  • State clearly whether the decisive weakness lives in the coercion source, the relay target, signing settings, or the accepted downstream service.
  • If the path ultimately becomes a certificate-enrollment issue or a pure Kerberos delegation edge, hand off to the tighter specialized skill.

Read the full file on GitHub · 51 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. 12d ago First seen · 51 lines · 119 tokens per session scan A 0902a70e320e

Subscribe to this mod's changes

competition-relay-coercion-chain is a skill published in the GitHub repository Saprophytic-seattle561/reverse-skill (1 stars, last pushed 2d ago), licensed MIT. It adds 119 tokens to every session and 633 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to competition-relay-coercion-chain, differing in 0 lines, and is treated as a copy.

Related

Other skills, from other repositories

burp-scan

Burp Suite scanning via MCP tools — passive traffic analysis, active payload testing, OOB verification, and vulnerability reporting using Burp's proxy, HTTP sender, Collaborator, and scanner APIs. Use when the user has Burp Suite running with the AI Agent MCP server and wants to scan, test, or analyze web traffic…

six2dez/burp-ai-agent · 87 tokens

solopi-ai

A command-line framework for testing Android apps and devices with SoloPi, including on-device or cloud AI decision models. It manages devices, test cases, recorded interactions, replays, performance history, and evidence.

alipay/SoloPi · 127 tokens

argent-tv-interact

Control and inspect TV apps via argent — Apple TV (tvOS), Android TV (leanback), and Amazon Fire TV (Vega). Boot the target, read focus, navigate with the D-pad remote, type, screenshot, and on Vega debug the JS runtime (evaluate, console logs, network inspector). Use when a task targets a TV (runtimeKind "tv", or…

software-mansion/argent · 107 tokens

flutter-feature-based-clean-architecture

Organize Flutter apps with modular feature-based clean architecture. Use when creating features under lib/features/ with domain, data, and presentation layers. Do not use for test-only, BlocBuilder, navigation, or spinner requests.

HoangNguyen0403/agent-skills-standard · 51 tokens

database-redis

Optimize Redis as cache and coordination infrastructure with TTL, eviction, and latency-aware key design. Use when implementing Redis caching, key invalidation, or Redis performance work.

HoangNguyen0403/agent-skills-standard · 37 tokens

Detox Mobile Testing

Gray-box end-to-end testing for React Native apps with Detox. Covers .detoxrc.js configuration, build and test commands, matchers, device.launchApp control, automatic synchronization, and macOS CI pipelines.

PramodDutta/qaskills · 48 tokens