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 Uniswap/uniswap-ai --skill v4-security-foundationsgit clone --depth 1 https://github.com/Uniswap/uniswap-aiWrote 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/uniswap/uniswap-ai/v4-security-foundations)<a href="https://agentmods.dev/skills/uniswap/uniswap-ai/v4-security-foundations"><img src="https://agentmods.dev/badge/skills/uniswap/uniswap-ai/v4-security-foundations/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/uniswap/uniswap-ai/v4-security-foundations"><img src="https://agentmods.dev/badge/skills/uniswap/uniswap-ai/v4-security-foundations.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk warn
- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Excessive Agency · line 5 Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
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 | $0.00055 | $0.04030 |
| Opus 5 | $0.00028 | $0.02015 |
| Sonnet 5 | $0.00011 | $0.00806 |
| Haiku 4.5 | $0.00006 | $0.00403 |
Grade A, and why
v4-security-foundations 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 11d 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 — 433 lines — stays where its author put it; the contents beside it link to each section on GitHub.
v4 Hook Security Foundations
Security-first guide for building Uniswap v4 hooks. Hook vulnerabilities can drain user funds—understand these concepts before writing any hook code.
Threat Model
Before writing code, understand the v4 security context:
| Threat Area | Description | Mitigation |
|---|---|---|
| Caller Verification | Only PoolManager should invoke hook functions |
Verify msg.sender == address(poolManager) |
| Sender Identity | msg.sender always equals PoolManager, never the end user |
Use sender parameter for user identity |
| Router Context | The sender parameter identifies the router, not the user |
Implement router allowlisting |
| State Exposure | Hook state is readable during mid-transaction execution | Avoid storing sensitive data on-chain |
| Reentrancy Surface | External calls from hooks can enable reentrancy | Use reentrancy guards; minimize external calls |
Permission Flags Risk Matrix
All 14 hook permissions with associated risk levels:
| Permission Flag | Risk Level | Description | Security Notes |
|---|---|---|---|
beforeInitialize |
LOW | Called before pool creation | Validate pool parameters |
afterInitialize |
LOW | Called after pool creation | Safe for state initialization |
beforeAddLiquidity |
MEDIUM | Before LP deposits | Can block legitimate LPs |
afterAddLiquidity |
LOW | After LP deposits | Safe for tracking/rewards |
beforeRemoveLiquidity |
HIGH | Before LP withdrawals | Can trap user funds |
afterRemoveLiquidity |
LOW | After LP withdrawals | Safe for tracking |
beforeSwap |
HIGH | Before swap execution | Can manipulate prices |
afterSwap |
MEDIUM | After swap execution | Can observe final state |
beforeDonate |
LOW | Before donations | Access control only |
afterDonate |
LOW | After donations | Safe for tracking |
beforeSwapReturnDelta |
CRITICAL | Returns custom swap amounts | NoOp attack vector |
afterSwapReturnDelta |
HIGH | Modifies post-swap amounts | Can extract value |
afterAddLiquidityReturnDelta |
HIGH | Modifies LP token amounts | Can shortchange LPs |
afterRemoveLiquidityReturnDelta |
HIGH | Modifies withdrawal amounts | Can steal funds |
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 11d ago First seen · 433 lines · 55 tokens per session scan A 2d66ed0779a7
v4-security-foundations is a skill published in the GitHub repository Uniswap/uniswap-ai (230 stars, last pushed today), licensed MIT. It adds 55 tokens to every session and 4,030 once invoked, about $0.0003 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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