auditing-account-abstraction-and-paymaster-trust SKILL.md skillA
auditing-account-abstraction-and-paymaster-trust from unboundcompute/security-agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add unboundcompute/security-agent-skills/auditing-account-abstraction-and-paymaster-trust@git:20260901.f8395d1Pins git:20260901.f8395d1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- unboundcompute/security-agent-skills
- Path
skills/auditing-account-abstraction-and-paymaster-trust/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260901.f8395d1, committed Sep 1, 2026
- Size
- 10,326 bytes
- Repository stars
- 26
- License
- MIT
Audit an ERC-4337 account-abstraction deployment for trust misplaced in the user-operation lifecycle: a smart account whose validation accepts a signature or nonce it should reject, a paymaster that agrees to sponsor gas for operations it should not so an attacker drains its deposit, a bundler or entry-point assumption that lets a user operation be replayed or reordered for gain, and validation logic that reads mutable state or reaches outside its allowed scope. Covers smart-contract wallets…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Auditing account abstraction and paymaster trust: validation, payment, and execution are three trusts In an ERC-4337 stack a user operation is validated by the smart account, paid for by a paymaster, bundled by a bundler, and executed through the entry point, and those are separate trust decisions made by separate parties. Each is a place trust can be misplaced. The account's validation decides whether a signature and nonce are acceptable; if it accepts what it should reject, an attacker executes operations as the account. The paymaster decides whether to sponsor an operation's gas; if it sponsors what it should not, an attacker drains its deposit by submitting operations that cost the paymaster and benefit no legitimate user, a denial-of-wallet on the sponsor. The entry point and bundler order and submit operations; if an operation can be replayed or reordered for gain, the lifecycle itself is the exploit. And validation runs under strict rules about what state it may read, mutable or external state in validation is both a denial vector and a soundness hole. The audit walks the user-operation lifecycle and checks each trust: what validation accepts, what the paymaster …
Read the whole file at its exact version.
How to install
mdr add unboundcompute/security-agent-skills/auditing-account-abstraction-and-paymaster-trust@sha256:9046ed8a204f24b7The line at the top of this page pins the label git:20260901.f8395d1, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_dq24csjq2wmsubps)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 1, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (10326 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
unboundcompute/security-agent-skills · 26 stars · license MIT · pushed 2026-09-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_dq24csjq2wmsubps GET https://markdownregistry.com/api/v1/resolve?ref=unboundcompute/security-agent-skills/auditing-account-abstraction-and-paymaster-trust GET https://markdownregistry.com/api/v1/blob/9046ed8a204f24b78f2986ca549ac1484a938c5fdf0bfffd2223f2d97e541062
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.