Conciseness

The body is lean and assumes Solidity/DeFi competence (one-line framing, terse source list, focused code blocks), but contains minor explanatory asides like "They're not vulnerabilities themselves — they're a force multiplier" and the parenthetical ERC4626/reentrancy note that could be trimmed — the efficient 4 rather than the every-token-earns-its-place 5.

Actionability

Provides copy-paste-ready Solidity snippets for each pattern, an executable grep one-liner, a concrete Foundry PoC template with real Aave V3 pool address and assertGt check, and an explicit foundry_inflation_test(...) tool call — fully executable guidance covering the common cases.

Workflow Clarity

The 'Audit steps' are clearly sequenced (locate integrations → per-handler checks → price-reading functions → share-mint/burn with a Foundry validation test) with concrete sub-checks, but the feedback loop (fail → fix → re-validate) is implicit rather than an explicit checkpoint — the 4 anchor with minor validation gaps.

Progressive Disclosure

Well-organized into clear single-purpose sections (attack patterns, audit steps, severity, PoC, OPSEC, remediation, exemplars) with clearly signaled one-level-deep cross-references to sibling skills (oracle-manipulation/SKILL.md, reentrancy/); no bundle files exist, and sections like Known exemplars/PoC template could arguably split into references, so 4 rather than 5.

Specificity

Names the domain ("Flash-loan exploit patterns") and lists four concrete sub-patterns ("callback reentrancy, oracle amplification, governance attacks, unauthenticated callback handlers"), matching the 'lists several specific actions; minor gaps' anchor rather than the fully comprehensive 5.

Completeness

The 'what' is explicit (exploit patterns and four concrete types) and an equivalent explicit trigger guidance exists via metadata.when_to_use ("flash loan aave dydx balancer composition"), so it clears the 3-cap; the 'when' is terse keyword-only rather than a concrete 'Use when...' clause, fitting the 4 anchor.

Trigger Term Quality

"Flash-loan" plus the named attack types are natural terms a security auditor would say, and metadata.when_to_use adds "aave dydx balancer"; good coverage but a few natural synonyms/protocol names are absent from the description field itself, so 4 rather than 5.

Distinctiveness Conflict Risk

"Flash-loan exploit patterns" is a clear niche with distinct triggers, but the body explicitly cross-references sibling skills (oracle-manipulation, reentrancy), indicating minor overlap risk with closely related skills — the 4 anchor rather than the minimal-conflict 5.