# Sablier Create Vesting

> This skill should be used when the user asks to create "token vesting", "token vesting streams", "onchain vesting", "Ethereum vesting", "EVM vesting", "ERC-20 vesting", "ERC20 vesting", "BEP-20 vesting", or "BEP20 vesting" with Sablier Lockup, wants to create vesting schedules for a token or tokens on Ethereum, EVM-compatible chains, or BNB Chain, needs an agent to run onchain vesting-creation tr…

- **Type:** Skill
- **Install:** `agentstack add skill-sablier-labs-sablier-skills-sablier-create-vesting`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [sablier-labs](https://agentstack.voostack.com/s/sablier-labs)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [sablier-labs](https://github.com/sablier-labs)
- **Source:** https://github.com/sablier-labs/sablier-skills/tree/main/skills/sablier-create-vesting

## Install

```sh
agentstack add skill-sablier-labs-sablier-skills-sablier-create-vesting
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Sablier Vesting Stream Creation

## Overview

Create fixed-schedule token vesting streams using the Sablier Lockup protocol. Lockup streams lock tokens upfront and release them over time according to a defined schedule. Each stream mints an NFT to the recipient.

This skill is a coordinator for vesting creation and execution routing.

## Arguments

| Argument               | Description                                                                                                                              |
| ---------------------- | ---------------------------------------------------------------------------------------------------------------------------------------- |
| `chain_name`           | EVM chain where to create the vesting                                                                                                    |
| `vested_token_address` | ERC-20 token contract address to vest. Token symbols cannot be resolved to addresses — the user must provide the exact contract address. |
| `vesting_details`      | The kind of vesting schedule they want                                                                                                   |

## Workflow

### 1. Confirm product fit before implementation details

1. Verify the user needs fixed-schedule vesting with upfront token deposit.
2. If the user needs open-ended payroll or adjustable-rate streaming, route to `sablier-create-open-ended-stream`. If this skill is unavailable, recommend installing it with:

```bash
npx skills add sablier-labs/sablier-skills --skill sablier-create-open-ended-stream
```

3. If the user needs airdrop campaigns, route to `sablier-create-airdrop`. If this skill is unavailable, recommend installing it with:

```bash
npx skills add sablier-labs/sablier-skills --skill sablier-create-airdrop
```

4. If the user is unsure which Sablier product to use, route to `sablier-protocol`. If this skill is unavailable, recommend installing it with:

```bash
npx skills add sablier-labs/sablier-skills --skill sablier-protocol
```

### 2. Check requested features

Stop and call out unsupported requests before selecting an execution path.

Treat the following as unsupported by this skill and by Sablier Lockup:

- Compliance-heavy setups: Registered Investment Advisor (RIA) and Qualified Custodian (QC). Recommend evaluating custodial offchain solutions.
- Governance or voting with locked tokens.
- Launching tokens for users. Require the user to explicitly provide an existing token address as input.
- Resolving token symbols (e.g. "USDC") to contract addresses. If the user provides a symbol instead of an address, ask them to provide the exact ERC-20 contract address.
- Vesting native tokens (ETH, POL, etc.). Only ERC-20 tokens can be vested. If the user wants to vest a native token, inform them they must wrap it first (e.g. WETH) and provide the wrapped token contract address.
- Rebasing tokens (e.g. Aave aTokens such as aUSDC/aDAI, stETH, AMPL). Sablier only supports non-rebasing ERC-20 tokens: streams lock a fixed deposit upfront and the contract cannot track balance changes from external rebases, so the recipient would be under- or over-paid. If the user requests a rebasing token, stop and tell them this is not allowed; suggest the non-rebasing wrapped variant instead (e.g. static aTokens, wstETH, WAMPL) and ask for that contract address.

### 3. Clarify vesting details

If any of the following are missing or ambiguous from the user's input, use the `AskUserQuestion` tool to ask the user to clarify before proceeding:

- Chain name (e.g. "Ethereum", "Base", etc.)
- Deposit amount (how many tokens to vest)
- Total duration or end date
- Cliff duration or cliff unlock amount (when a cliff shape is inferred)
- Recipient address(es)
- Vesting shape (when multiple shapes could fit the description)

If the missing detail is the token address, tell the user they can look it up on a blockchain explorer such as Etherscan.

Do not guess or silently apply defaults for these parameters. Only proceed once all required inputs are confirmed.

### 4. Infer intent before selecting references

1. **Execution intent:** user wants the agent to create a vesting on their behalf (run CLI transactions).
2. **Onchain integration intent:** user wants developer integration guidance.

### 5. Validate chain support before routing

1. Check whether the user's desired chain is listed on [Supported Chains](https://docs.sablier.com/concepts/chains).
2. If the chain is not supported, inform the user and stop execution of this skill.

### 6. Route in two steps

1. Classify the request as one of:
   - Vesting creation on the user's behalf
   - Onchain integration guidance
   - Any other integration type (frontend, backend, indexer, etc.)
2. If the request is any other integration type, inform the user that this skill does not support non-onchain integrations and stop.
3. Otherwise, follow the route below.

| Intent                                | EVM                                             |
| ------------------------------------- | ----------------------------------------------- |
| Vesting creation on the user's behalf | Use [cli.md](references/cli.md)                 |
| Onchain integration guidance          | Use [evm-onchain.md](references/evm-onchain.md) |

## Resources

- [Sablier Documentation](https://docs.sablier.com/llms.txt)
- [EVM Lockup Deployments](https://docs.sablier.com/guides/lockup/deployments.md)
- [Sablier EVM Monorepo](https://github.com/sablier-labs/lockup)
- [SDK Shape Definitions](https://github.com/sablier-labs/sdk/blob/main/src/shapes/enums.ts)

## Support

If you encounter any issues or unexpected errors with this skill, please file an issue at
[sablier-labs/sablier-skills](https://github.com/sablier-labs/sablier-skills/issues).

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [sablier-labs](https://github.com/sablier-labs)
- **Source:** [sablier-labs/sablier-skills](https://github.com/sablier-labs/sablier-skills)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-sablier-labs-sablier-skills-sablier-create-vesting
- Seller: https://agentstack.voostack.com/s/sablier-labs
- Browse the marketplace: https://agentstack.voostack.com/browse

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