---
name: grimoire-pendle
description: Fetches Pendle Hosted SDK metadata using the Grimoire venue CLI. Use when you need supported chains, aggregators, markets, assets, or market token details.
---

# Grimoire Pendle Skill

Use this skill to inspect Pendle metadata and preflight Pendle routing configuration before running spells.

Preferred invocations:

- `grimoire venue pendle ...`
- `npx -y @grimoirelabs/cli venue pendle ...` (no-install)
- `bun run packages/cli/src/index.ts venue pendle ...` (repo-local)
- `grimoire-pendle ...` (direct binary from `@grimoirelabs/venues`)

Recommended preflight:

- `grimoire venue doctor --adapter pendle --chain 1 --rpc-url <rpc> --json`

## Commands

- `grimoire venue pendle info [--base-url <url>] [--format <auto|json|table>]`
- `grimoire venue pendle chains [--base-url <url>] [--format <auto|json|table>]`
- `grimoire venue pendle supported-aggregators --chain <id> [--base-url <url>] [--format <auto|json|table>]`
- `grimoire venue pendle markets [--chain <id>] [--active <true|false>] [--base-url <url>] [--format <auto|json|table>]`
- `grimoire venue pendle assets [--chain <id>] [--type <PT|YT|LP|SY>] [--base-url <url>] [--format <auto|json|table>]`
- `grimoire venue pendle market-tokens --chain <id> --market <address> [--base-url <url>] [--format <auto|json|table>]`

## Examples

```bash
grimoire venue pendle info --format table
grimoire venue pendle chains
grimoire venue pendle supported-aggregators --chain 1 --format json
grimoire venue pendle markets --chain 1 --active true --format table
grimoire venue pendle assets --chain 8453 --type PT --format table
grimoire venue pendle market-tokens --chain 8453 --market 0x... --format json
```

## Authoring Workflow

Pendle requires a market-first approach. **Do NOT write a Pendle spell without first querying available markets.**

1. **Query markets** for the target chain and underlying:
   ```bash
   grimoire venue pendle markets --chain 1 --active true --format json
   ```

2. **Pick a market** — note its address and expiry. Each market has specific PT/YT/SY tokens.

3. **Query market tokens** to get the exact token addresses:
   ```bash
   grimoire venue pendle market-tokens --chain 1 --market 0x... --format json
   ```

4. **Write the spell** using token addresses from step 3:
   ```spell
   pendle.add_liquidity(0x<SY_address>, params.amount) with (max_slippage=100)
   ```

### Common mistakes

- **`pendle.deposit(USDC, ...)`** — Pendle has no `deposit` action. Use `add_liquidity`, `mint_py`, `mint_sy`, or `swap`.
- **Using token symbols without addresses** — PT/YT/SY tokens are auto-resolved via the Pendle API, but standard tokens like USDC need raw amounts in the token's smallest unit.
- **Missing `enable_aggregator`** — Some routes require an aggregator. If no route is found, retry with `enable_aggregator=true` in the `with()` clause.

### Supported actions

| Action | Description | Input | Output |
|--------|-------------|-------|--------|
| `swap` | Swap between any Pendle tokens | Single token | Single token |
| `add_liquidity` | Add single-sided liquidity | Underlying/SY | LP token |
| `remove_liquidity` | Remove single-sided liquidity | LP token | Underlying/SY |
| `mint_py` | Mint PT + YT from underlying | Underlying/SY | PT + YT |
| `redeem_py` | Redeem PT + YT to underlying | PT + YT | Underlying/SY |
| `mint_sy` | Wrap underlying into SY | Underlying | SY |
| `redeem_sy` | Unwrap SY to underlying | SY | Underlying |

## Metric Surface (Spell Comparisons)

Pendle exposes `quote_out` for route output comparisons:

```spell
pendle_out = metric("quote_out", pendle, USDC, "asset_out=DAI,amount=1000000,slippage_bps=1000")
```

Selector fields:

- required: `asset_out`
- optional: `amount` (defaults to 1 unit of input asset), `slippage_bps`, `enable_aggregator`

## Spell Constraints

When writing Pendle actions in `.spell` files, use `with` clauses:

```spell
pendle.swap(PT_TOKEN, SY_TOKEN, params.amount) with (
  max_slippage=100,
  require_quote=true,
)
```

| Constraint | Type | Description |
|-----------|------|-------------|
| `max_slippage` | integer (bps) | Maximum slippage, validated as integer in `[0, 10000]`, converted to decimal for API |
| `min_output` | integer (wei) | Minimum output amount floor |
| `require_quote` | boolean | Fail if Pendle API quote fails |
| `max_gas` | integer (wei) | Gas estimate cap |

Pendle `swap` only supports `mode: exact_in`. `exact_out` is not supported.

When the Pendle API returns multiple routes, the adapter selects the first (best) route and emits a warning via `onWarning`. This is logged in non-JSON CLI runs.

## PT/YT/SY Token Resolution

Pendle PT, YT, and SY tokens (e.g. `PT_FXSAVE`, `YT_EETH`, `SY_WSTETH`) are **automatically resolved** via the Pendle API at build time. You can use these symbols directly in spells without providing explicit addresses:

```spell
pendle.swap(PT_FXSAVE, USDC, params.amount) with (max_slippage=100)
```

The adapter converts underscore-delimited names (e.g. `PT_FXSAVE`) to the Pendle API format and picks the best match. If multiple expiries exist, the first (nearest) is selected.

To target a specific expiry or disambiguate, use the full 0x address instead:

```spell
pendle.swap(0xb1e926428ebec4421cce1ec6d9ff65d27f4b4bb6, USDC, params.amount)
```

Use `grimoire venue pendle assets --chain <id> --type PT` to discover available tokens and addresses.

## Notes

- Default API base URL is `https://api-v2.pendle.finance/core`.
- Override base URL with `--base-url` or `PENDLE_API_BASE_URL`.
- Use `--format json` for automation and nested payloads.
- Pendle `swap` currently supports `mode: exact_in` only.
- Aggregators are disabled by default in adapter actions unless explicitly enabled.
- For Pendle token outputs (`assetOut`, `outputs`), use bare address literals (`0x...`) and not quoted strings (`\"0x...\"`).
- Quoted address-like token values trigger validator code `QUOTED_ADDRESS_LITERAL`.
- `max_slippage` is validated as integer bps in `[0, 10000]` and converted to decimal (`bps / 10000`) before API requests.