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competition-prompt-injection

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Internal downstream skill for ctf-sandbox-orchestrator. CTF-sandbox workflow for prompt-injection, retrieval poisoning, memory contamination, planner drift, MCP or tool-boundary abuse, and agent exfiltration challenges. Use when the user asks to analyze prompt injection, retrieval poisoning, memory contamination, planner drift, tool-argument corruption, or secret exposure caused by an agent chain. Use only after `$ctf-sandbox-orchestrator` has already established sandbox assumptions and routed here.

CTF-Sandbox-Orchestrator/competition-prompt-injection/SKILL.md

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Source commit cab634bd855fc287f6e420c1f36fd1a6b9245960

What was checked

Matches the observed repository HEAD
Yes
Scanner rules are current
Yes
Repository scan complete
No
Skill scan complete
No
Observed behavior
Network or broad shell
Last checked
Nov 9, 2026

These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.

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Repository context

Repository stars (not skill ratings)
44,511
Repository last updated
Sep 22, 2026
License
MIT

Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.

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# Competition Prompt Injection

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 challenge is primarily about trust boundaries inside an agentic system.

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## Quick Start

1. Identify the first untrusted content that becomes model-visible.
2. Map the chain from retrieval, memory, or transcript into planner or executor behavior.
3. Record the exact point where text becomes a tool argument, file path, network target, or secret request.
4. Prove one minimal exploit chain before exploring variants.
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