TrailsSAFE
Bankr Skills equip builders with plug-and-play tools to build more powerful agents.
Overview
Bankr Skills equip builders with plug-and-play tools to build more powerful agents.
4029e336cef5OBSERVED · 2026-10-09What it tells the agent
The instruction file, verbatim from the audited commit — this is the text the model reads, and the surface the audit's instruction layer examines. Quoted here so you can judge it without cloning anything.
---
name: trails
description: Trails — Cross-chain swap, bridge, and DeFi orchestration via Sequence. Use when an agent wants to swap tokens across chains, bridge assets, fund a Bankr wallet from any chain, deposit into yield vaults (Aave, Morpho), get token prices, discover earn pools, or quote cross-chain routes. Integrates with Bankr submit() for on-chain execution. Also use when asked about Trails, Sequence swaps, cross-chain bridging, or DeFi yield deposits.
# Trails
Cross-chain swap, bridge, and DeFi orchestration powered by Sequence. Agents specify the action — Trails automatically determines the optimal multi-step path across chains.
**API Base:** `https://trails-api.sequence.app/rpc/Trails/<MethodName>`
**Auth Header:** `X-Access-Key: $TRAILS_API`
**Widget:** `https://demo.trails.build/`
**Bankr Integration:** `submit()` from `@bankr/cli` broadcasts on-chain transactions
## Environment Variables
```bash
export TRAILS_API=<your-sequence-project-access-key> # from https://sequence.build
export BANKR_API_KEY=<your-bankr-key> # from bankr.bot/api-keys
```
## Quick Start
### Get a swap quote (USDC on Polygon -> ETH on Base)
```bash
BANKR_WALLET=$(curl -s https://api.bankr.bot/agent/me \
-H "X-API-Key: $BANKR_API_KEY" \
| jq -r '.wallets[] | select(.chain == "evm") | .address')
curl -s https://trails-api.sequence.app/rpc/Trails/QuoteIntent \
-H "Content-Type: application/json" \
-H "X-Access-Key: $TRAILS_API" \
-d "{
\"ownerAddress\": \"$BANKR_WALLET\",
\"originChainId\": 137,
\"originTokenAddress\": \"0x3c499c542cef5e3811e1192ce70d8cC03d5c3359\",
\"originTokenAmount\": \"10000000\",
\"destinationChainId\": 8453,
\"destinationTokenAddress\": \"0x0000000000000000000000000000000000000000\",
\"destinationTokenAmount\": \"0\",
\"tradeType\": \"EXACT_INPUT\",
\"options\": { \"slippageTolerance\": 0.005 }
}" | jq '.intent.quote'
```
### Discover yield pools
```bash
curl -s https://trails-api.sequence.app/rpc/Trails/GetEarnPools \
-H "Content-Type: application/json" \
-H "X-Access-Key: $TRAILS_API" \
-d '{"chainIds": [137]}' \
| jq '[.pools[] | select(.isActive and .token.symbol == "USDC")] | sort_by(-.tvl) | .[0]'
```
## Task Guide
### When the user wants to fund a Bankr wallet
Use the Trails widget URL with the Bankr wallet address as `toAddress`. See `references/trails.md` Recipe 1.
### When the user wants to swap tokens (same-chain or cross-chain)
1. Get Bankr wallet address
2. QuoteIntent -> CommitIntent -> submit depositTransaction via Bankr -> ExecuteIntent -> WaitIntentReceipt
See `references/trails.md` Recipe 2.
### When the user wants to deposit into a yield vault
1. GetEarnPools to discover pool addresses and APYs
2. Approve the pool contract via Bankr submit()
3. Deposit via Bankr submit()
See `references/trails.md` Recipe 3.
### When the user asks about supported tokens or chains
Use `GetTokenList` (body: `{"chainIds": [137]}`) or `GetChains`.
### When the user asks about token prices
Use `GetTokenPrices`.
## API Methods
| Group | Method | Description |
| --------------------- | ---------------------------------- | ------------------------------------------------ |
| **Intent lifecycle** | `QuoteIntent` | Get quote + depositTransaction for a swap/bridge |
| | `CommitIntent` | Lock the intent, receive intentId |
| | `ExecuteIntent` | Notify Trails the deposit tx is mined |
| | `WaitIntentReceipt` | Poll until intent is complete |
| **Intent management** | `GetIntent` | Look up intent by ID |
| | `GetIntentReceipt` | Get final receipt |
| | `SearchIntents` | List intents by owner/status |
| | `GetIntentHistory` | Paginated history |
| | `AbortIntent` | Cancel a pending intent |
| **Discovery** | `GetEarnPools` | Active yield pools with APY, TVL, depositAddress |
| | `GetChains` | Supported chains |
| | `GetTokenList` | Tokens per chain |
| | `GetTokenPrices` | USD prices |
| | `GetExactInputRoutes` | Preview routes for exact-in |
| | `GetExactOutputRoutes` | Preview routes for exact-out |
| **Reference** | `GetExchangeRate` | Fiat conversion |
| | `GetTrailsContracts` | Contract addresses per chain |
| **Utility** | `Ping` / `RuntimeStatus` / `Clock` | Health + server time |
## Key Notes
- `originTokenAmount` is in base units (e.g. `10000000` = 10 USDC with 6 decimals)
- Use `"0x000...000"` for native token addresses
- `submit` must be imported from `@bankr/cli/dist/lib/api.js` (not re-exported from main entry)
- Add `"destinationToAddress"` to QuoteIntent to send output to a different wallet than the payerTrust audit
SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.
| Layer | What it checks | Result |
|---|---|---|
| L0 | Provenance & inventory | PASS |
| L1 | Static analysis of the code | NA |
| L2 | Instruction surface (what it tells the agent) | PASS |
| L3 | Class-specific surface | PASS |
| L4 | Behavioural (sandbox) | SKIPPED |
What the source does
- Filesystem
- none-observed
- Network
- none-observed
- Shell
- none-observed
- Dependencies
- pinned
- Secrets in source
- none-found
Findings (0)
No findings outside the package's declared scope.
Gates applied: no_behavioural_pass.
4029e336cef5full audit observations/trust-audit/skill/bankrbot__trails.json · Report an issue / request a re-scanAudit history
Every audit this skill has had.
| Date | Source | Verdict | Grade | Score | Change |
|---|---|---|---|---|---|
| 2026-10-09 | 4029e336cef5 | SAFE | B | 89 | first audit |
Questions
What does the Trails skill do?
Bankr Skills equip builders with plug-and-play tools to build more powerful agents.
Is Trails safe to install?
The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean skill reads B.
What can Trails access on my machine?
The audit observed no filesystem, network or shell use at all in its source.
How current is this page?
The grade is for one exact copy of the source (4029e336cef5), read on 2026-10-09. The repository is watched, and a new audit runs when it changes — this is the first audit.