102. [Advanced] Custom Gas Models for Private Networks

[dotandev]

Description
Allow users to define custom gas and resource cost models for the simulator to match private network configurations.

Requirements and Context

• Background: Private networks might have different economic parameters than Mainnet.
• Success Criteria (Done):
  • --gas-model ./model.json overrides host costs.

Suggested Execution

• Fork/Branch: feature/advanced-custom-gas
• Implementation:
  • Implement a JSON parser for host budget costs.
  • Inject custom costs into the soroban-env-host.

Test and Commit

• Testing:
  • Override a cost and verify it is reflected in the simulation result.
• PR Inclusions:
  • Gas model parser and host override logic.

Example Commit Message
feat(advanced): support custom gas and budget cost models

Guidelines

• Must-haves: Validation that the model is mathematically sound.

---

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[ALIPHATICHYD]

@ALIPHATICHYD has applied to work on this issue as part of the Stellar Wave Program's 1st wave.

I'd like to work on this because I enjoy improving CLI tools and this tackles a concrete pain point for developers working with rust

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[mijinummi]

@mijinummi has applied to work on this issue as part of the Stellar Wave Program's 1st wave.

Hello maintainers, I am a full stack software engineer, experience in building scalable systems, I can handle this task perfectly, please assign.

Thanks

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[victorisiguzoruzoma874]

@victorisiguzoruzoma874 has applied to work on this issue as part of the Stellar Wave Program's 1st wave.

hello maintainer, I am a Full Stack Engineer with deep expertise in Next.js, Python, TypeScript, Node.js, Rust, PostgreSQL, JavaScript, and DevOps practices. I have made some meaningful contributions to projects within the Web3 space, with a strong focus on the Stellar ecosystem. Through this experience, I have consistently delivered robust, high-quality solutions and effectively addressed complex technical challenges under strict timelines. My background covers frontend and backend development, smart contract implementation, as well as the optimization and long-term maintenance of scalable systems.

I am fully capable of handling this assignment. Please proceed with the allocation.

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[Cedarich]

@Cedarich has applied to work on this issue as part of the Stellar Wave Program's 1st wave.

I will implement support for custom gas and resource cost models to match private network configurations. This includes parsing a user-provided JSON gas model, validating its mathematical correctness, and injecting the custom costs into the Soroban host to override defaults. I’ll add tests to verify overridden costs affect simulation results and deliver clean, well-scoped commits following the project guidelines.

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[EDOHWARES]

@EDOHWARES has applied to work on this issue as part of the Stellar Wave Program's 1st wave.

Hi, I'm EDOHWAREZ. I'll like to work on this issue.

I will add support for custom gas and resource cost models via a validated JSON override, enabling accurate private-network simulations while preserving mathematical soundness and default host behavior.

ETA - 24hrs

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

[gelluisaac]

@gelluisaac has applied to work on this issue as part of the Stellar Wave Program's 1st wave.

I’m interested in tackling this! I have a strong background in smart contract development and full-stack systems, so I'm well-equipped to handle the requirements here. Could you please assign this to me?

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[Manuel1234477]

@Manuel1234477 has applied to work on this issue as part of the Stellar Wave Program's 1st wave.

Hi Can I work on this issue

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