If I use a large number of protocols (more than ten, say), wouldn't checking every pair combination be too time-consuming — is there a simplified method?
With a large number of protocols, checking every pair combination individually (the number of combinations grows rapidly, mathematically) genuinely becomes impractical. A more efficient simplification is first grouping protocols by asset type — only protocols supporting the same or compatible asset types can potentially form a composable path. Using this criterion first to quickly filter which protocol pairs genuinely need further checking can significantly reduce the number of combinations you need to analyze one by one.
Another simplification technique is prioritizing checking the combined relationship between your few highest-authorized-amount protocols, since even if a composable path exists between some low-limit authorizations, the actual exposure scale caused is usually limited — not the highest-priority layer worth spending time analyzing. When resources are limited, it's worth focusing first on your few highest-amount protocol pairs.
If a composable path genuinely exists between Protocol A and Protocol B, but after assessing the combined exposure I can still accept it, does that mean everything's fine?
If you've fully worked through these five steps, genuinely understand the actual combined exposure scale, and proactively assessed whether that scale is within your acceptable range, that means you've done the core homework this series has repeatedly emphasized — not asking you to entirely avoid any protocol pairing with a combination risk, but asking you to honestly know how much exposure you're actually carrying before authorizing, then autonomously decide whether to accept it. This kind of decision made on fully informed grounds is itself responsible position planning.
But it's worth noting that this assessment result only reflects the protocols' state at the moment you checked — if Protocol A or Protocol B later updates its functionality or adds a new integration with another protocol, the combined exposure range you originally assessed could change. It's worth treating this cross-protocol combination check as a habit that needs periodic re-execution, not a one-time action that remains valid permanently.
If I find the combined exposure between two protocols far exceeds what I can accept, besides not using one of the protocols at all, are there other compromise approaches?
Besides avoiding one protocol entirely, a few compromise approaches are worth considering: first, setting one protocol's authorized amount extremely low (only authorizing the minimum you genuinely need to use, say), so that even if a composable path exists, the maximum achievable exposure gets capped by that low limit; second, if the agent platform supports more granular permission settings (restricting a protocol to only execute certain types of operations, disallowing transferring assets out to another protocol, say), you can directly cut off the composable path itself through this kind of fine-grained setting, without needing to fully give up using either protocol.
A third compromise approach is switching to a manual confirmation mechanism instead of full automation — setting a specific action like transferring assets out of Protocol A to require your manual approval before executing, rather than letting the agent decide entirely autonomously. This way, even though the composable path technically exists, you still retain a chance to intervene at the critical juncture, preventing the entire combined operation from completing automatically without your knowledge.
This checklist only applies to users who manually manage their own authorization — if I use a fully custodial DeFAI product, how can I still apply this concept?
Even if you use a fully custodial product where you don't need to set authorization details yourself one by one, the core logic of these five steps is still worth applying — just with the verification target shifted to the product team rather than your own authorization list. You can directly ask this platform whether the strategy it uses involves combined operation across multiple protocols, and whether the platform has conducted a dedicated risk assessment or set an overall exposure cap mechanism for this kind of combined effect.
For a user of a custodial product, even though you don't have the ability to manually narrow authorization scope yourself, you can still treat whether this platform takes composability risk seriously as a concrete criterion for screening products — a platform willing to proactively explain how it handles cross-protocol combination risk is generally more trustworthy to hand your capital to than one that's never mentioned this topic or gives a vague response.
This series earlier discussed composability privilege escalation — your agent's authorization to Protocol A and Protocol B might each be reasonable on their own, but combined together, they could achieve an effect you never assessed. This article provides a practical checklist to help you add a layer of cross-protocol review before authorizing a DeFAI agent for multi-protocol interaction.
First list every protocol you've currently authorized your agent for through your smart account — don't just keep it in your head, actually write it down (a simple list or spreadsheet works). Most users don't actually have a complete picture of which protocols they've authorized, especially after adding authorizations gradually over time — this list itself is the foundation for the analysis that follows.
For every pair of protocols on your list, ask yourself a concrete question: can an asset pulled out of Protocol A be deposited directly and seamlessly into Protocol B for further operation? If yes, that means a composable path exists between these two protocols, worth further assessing the actual combined effect; if not (the two protocols support completely incompatible asset types, or an extra manual conversion step is required, say), the combined risk between this pair of protocols is relatively low.
If Step Two confirms a composable path genuinely exists between two protocols, next try roughly calculating: if the agent genuinely executed the combined action of first operating in A, then depositing the result into B for further operation, what's the maximum theoretical exposure achievable? This number could easily and noticeably exceed the sum of your originally set caps for Protocol A and Protocol B individually — worth seriously confronting this gap.
Take the gap you found in Step Three directly to the agent development team: does this system have a cross-protocol total exposure cap mechanism, capable of preventing the agent from achieving an overall effect beyond what you can accept through a combined operation, rather than only limiting each protocol's individual authorization cap separately? This question itself tests whether this team genuinely recognizes the Composability Privilege Escalation risk.
If, after the four steps above, you find this agent system has absolutely no overall cross-protocol exposure control, the more practical approach is intervening manually yourself — not granting a high limit to multiple mutually composable protocols simultaneously, preferring to authorize in batches or at staggered times instead, or deliberately setting some protocols' authorized amounts lower than you'd originally want, indirectly controlling the maximum combined exposure this way.
These five steps require no coding or cryptography background — just a willingness to spend time reviewing your protocol list one by one and honestly confronting the question of what happens when they combine. Most users' risk assessment stops at each protocol looks fine on its own. This checklist reminds you that the DeFAI ecosystem's composability advantage is simultaneously somewhere that deserves an extra layer of scrutiny from you.