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simulating-flash-loans

Simulate flash loan strategies with profitability calculations and risk assessment across Aave, dYdX, and Balancer. Use when simulating flash loans, analyzing arbitrage profitability, evaluating liquidation opportunities, or comparing flash loan providers. Trigger with phrases like "simulate flash loan", "flash loan arbitrage", "liquidation profit", "compare Aave dYdX", "flash loan strategy", or "DeFi arbitrage simulation".

Quality

87%

Does it follow best practices?

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SecuritybySnyk

Passed

No findings from the security scan

SKILL.md
Quality
Evals
Security

Quality

Content

78%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A strong, highly actionable skill body: every instruction is an executable command with real flags, errors have cause/solution mapping, and detail is properly deferred to real, clearly-labeled reference files one level deep. The main weakness is token waste from the Examples section duplicating commands already shown in Instructions, plus a missing explicit setup-verification step.

Suggestions

Remove the three commands duplicated verbatim between Instructions and Examples — replace the Examples section with distinct scenarios or a one-line pointer to references/examples.md to reclaim ~20 lines of token budget.

Drop the Contents nav line at the top of the body; it duplicates the section headers that follow immediately.

Add a quick setup-validation step to Prerequisites (e.g., a single smoke-test command confirming the RPC connection works) before users launch into full simulations.

DimensionReasoningScore

Conciseness

The body avoids concept explanations and is mostly commands, but the Examples section repeats three commands verbatim from the Instructions section ("python ${CLAUDE_SKILL_DIR}/scripts/flash_simulator.py arbitrage ETH USDC 100 --dex-buy uniswap --dex-sell sushiswap" appears twice in full), and the Contents nav line duplicates the section headers. This is more than minor trimming — roughly 20 lines of duplicated content — matching the "mostly efficient but could be tightened" anchor rather than 4.

3 / 5

Actionability

Every instruction is a copy-paste-ready executable command with concrete arguments and flags ("arbitrage ETH USDC 100 --dex-buy uniswap --dex-sell sushiswap", "liquidation --protocol aave --health-factor 0.95", "--compare-providers", "--risk-analysis", "--full --output json"), covering the common cases. Exact match for the 5 anchor.

5 / 5

Workflow Clarity

Prerequisites are sequenced (install packages → configure RPC → set endpoint), each instruction is an unambiguous single command, and the Error Handling table pairs causes with solutions (e.g., "RPC Rate Limit → Switch to backup endpoint or wait"). There is no explicit setup-verification step before running simulations, which leaves a minor validation gap at anchor 4; the destructive/batch cap does not apply since the skill only simulates "without executing real transactions", and error-recovery guidance keeps it above anchor 3.

4 / 5

Progressive Disclosure

The body is a lean overview with well-signaled, one-level-deep references — references/implementation.md "for detailed output examples and risk scoring methodology", references/errors.md "for comprehensive error handling", references/examples.md "for multi-provider comparison and backtesting examples" — all of which are real files, with implementation scripts correctly separated into scripts/. Minor blemishes (implementation.md is linked from both Output and Resources, and two Resources entries lack links) do not materially harm navigation, so it best fits the 5 anchor.

5 / 5

Total

17

/

20

Passed

Description

92%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

An excellent description: it states concrete capabilities in third person, explicitly covers both what the skill does and when to use it, provides natural trigger phrases, and is clearly distinguishable from other skills. The only minor gap is that a few plausible user phrasings (e.g., "flashloan" as one word, MEV-related terms) are absent from the trigger list.

DimensionReasoningScore

Specificity

"Simulate flash loan strategies with profitability calculations and risk assessment across Aave, dYdX, and Balancer" names multiple concrete actions — simulation, profitability calculations, risk assessment, liquidation evaluation, and provider comparison — with comprehensive coverage of the flash loan niche. It lists several specific actions rather than exhibiting minor gaps, so it matches the 5 anchor rather than 4.

5 / 5

Completeness

It explicitly answers both "what" (simulates flash loan strategies with profitability and risk assessment across Aave, dYdX, and Balancer) and "when" ("Use when simulating flash loans, analyzing arbitrage profitability, evaluating liquidation opportunities, or comparing flash loan providers") with concrete trigger phrases. This is an exact match for the 5 anchor; the "when" clause is fully explicit, not merely present.

5 / 5

Trigger Term Quality

The trigger list — "simulate flash loan", "flash loan arbitrage", "liquidation profit", "compare Aave dYdX", "flash loan strategy", "DeFi arbitrage simulation" — contains natural phrases users would actually say, with some synonym coverage. A few natural terms are missing (e.g., "flashloan" as one word, "MEV", protocol-specific liquidation queries), which places it between the 4 and 5 anchors, noticeably above the midpoint.

4 / 5

Distinctiveness Conflict Risk

The description occupies a clear niche — flash loan simulation on three named protocols — with triggers unlikely to fire for unrelated skills. Minimal conflict risk matches the 5 anchor.

5 / 5

Total

19

/

20

Passed

Validation

87%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 14 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

allowed_tools_field

'allowed-tools' contains unusual tool name(s)

Warning

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

Total

14

/

16

Passed

Repository

jeremylongshore/tons-of-skills-marketplace

Path

plugins/crypto/flash-loan-simulator/skills/simulating-flash-loans/SKILL.md

Reviewed

Table of Contents

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