[FEATURE] Automation: Multi-step action execution chain engine (#50)

[KevinMB0220]

📋 Feature Description

Clear and concise description of the feature:
Create an execution engine that chains multiple transactions and interactions into a single pipeline (e.g. withdraw Blend -> swap on Soroswap -> deposit to yield vault) and handles failures gracefully.

🎯 Motivation

Why is this feature needed? What problem does it solve?
Roadmap item #50. Complex automation requires orchestrating multi-step protocols natively.

💡 Proposed Solution

How should this feature work? Include technical details:
Build ExecutionChain service that accepts a list of actions, simulates them, builds transactions, manages authentication, and executes them sequentially.

🔧 Technical Implementation

Implementation details for AI/developers:

Files to Create/Modify

• packages/core/automation/src/execution-chain/index.ts

Dependencies

• None

API Changes

export interface ExecutionStep {
  type: string;
  params: Record<string, any>;
}
export class ExecutionChain {
  async executeSteps(steps: ExecutionStep[]): Promise<boolean>;
}

✅ Acceptance Criteria

• Execution continues sequentially on success.
• Execution halts and rolls back/warns on step failure.
• Unit tests covering mock execution chain.

📚 Additional Context

None.

🔗 Related Issues

• N/A

🏷️ Labels

Phase: phase-3
Component: automation
Priority: high

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[edrizxabdulganiyu-blip]

@edrizxabdulganiyu-blip has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Hello Maintainer, I’ve reviewed the issue description and I’m confident I can work on it effectively. Please assign it to me.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @edrizxabdulganiyu-blip to this issue.

[sotoJ24]

@sotoJ24 has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Hello team hope you're doing well, here is how I plan to solve it:

• create packages/core/automation/src/execution-chain/index.ts

• Build ExecutionChain service that accepts a list of actions.

-Create an execution engine that chains multiple transactions and interactions into a single pipeline.
"
API Changes
export interface ExecutionStep {
type: string;
params: Record<string, any>;
}
export class ExecutionChain {
async executeSteps(steps: ExecutionStep[]): Promise;
}
"
submit PR,
Best

ℹ️ Repo Maintainers: To accept this application, review their application or assign @sotoJ24 to this issue.

[drips-wave]

Congratulations, @sotoJ24! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 30, 2026.

🧑‍💻 @sotoJ24: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

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