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 skills add PlamenTSV/plamen --skill flash-loan-interactiongit clone --depth 1 https://github.com/PlamenTSV/plamenWrote 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/skills/plamentsv/plamen/flash-loan-interaction)<a href="https://agentmods.dev/skills/plamentsv/plamen/flash-loan-interaction"><img src="https://agentmods.dev/badge/skills/plamentsv/plamen/flash-loan-interaction.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 5.1 | $0.00040 | $0.03437 |
| Opus 5 | $0.00020 | $0.01718 |
| Sonnet 5 | $0.00008 | $0.00687 |
| Haiku 4.5 | $0.00004 | $0.00344 |
Grade A, and why
flash-loan-interaction 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 7d 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.
How it starts
The opening of the file, as written. The whole thing — 260 lines — stays where its author put it; the contents beside it link to each section on GitHub.
FLASH_LOAN_INTERACTION Skill
Trigger Pattern: FLASH_LOAN flag (required) or BALANCE_DEPENDENT flag (optional complement) Inject Into: Breadth agents, depth-token-flow, depth-edge-case Purpose: Analyze flash loan attack surfaces in Aptos Move protocols, focusing on the hot potato receipt pattern, state manipulation during flash loan windows, and defense parity
For every flash-loan-accessible state variable or precondition in the protocol:
STEP PRIORITY: Steps 5 (Defense Audit) and 5b (Defense Parity) are where HIGH/CRITICAL severity findings most commonly hide. Do NOT rush these steps. If constrained, skip conditional sections (0c, 4) before skipping 5, 5b, or 3d.
0. External Flash Susceptibility Check
Before analyzing the protocol's OWN flash loan paths, check whether external protocols the contract interacts with are susceptible to third-party flash manipulation.
0a: External Interaction Inventory
| External Protocol | Interaction Type | State Read by Our Protocol | Can 3rd Party Flash-Manipulate That State? |
|---|---|---|---|
| {DEX/pool/vault} | {swap/deposit/query} | {reserves, price, balance} | {YES if spot state / NO if TWAP or time-weighted} |
0b: Third-Party Flash Attack Modeling
For each external state marked YES in 0a, model:
- Before: Protocol reads external state X (e.g., pool reserves, spot price from AMM)
- Flash manipulate: Attacker flash-borrows and trades on the external protocol to move state X
- Victim call: Attacker calls OUR protocol function that reads manipulated state X
- Restore: Attacker reverses the external manipulation
- Impact: What did the attacker gain from our protocol acting on manipulated state?
Key question: Does our protocol use spot state (manipulable) or time-weighted state (resistant)?
0c: DEX Price Manipulation Cost Estimation
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.
- 7d ago First seen · 260 lines · 40 tokens per session scan A 33ea2e554ce6
flash-loan-interaction is a skill published in the GitHub repository PlamenTSV/plamen (281 stars, last pushed 1mo ago), licensed MIT. It adds 40 tokens to every session and 3,437 once invoked, about $0.0002 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 2026-08-30.
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