Map All Value Error Codes to Names, Descriptions, and Severity Levels

[Emrys02]

Implement the complete mapping of all Value category error subcodes. Value errors fire when the host encounters invalid or unexpected values, type mismatches, malformed ScVal conversions, or out-of-range integers passed to host functions.

Implementation Guidelines

• Create crates/core/src/decode/mappings/value.rs
• Same structure: ValueErrorDetail with code, name, summary, severity
• Map all known subcodes from soroban-env-host (InvalidInput, UnexpectedType, InternalError)

Expectations

• What done looks like: Every Value subcode maps to a description that helps developers trace back to which function argument or conversion was invalid.

[mansory-01]

@mansory-01 has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

I will like to work on this. I will create value.rs with the ValueErrorDetail struct and map all known Value subcodes (InvalidInput, UnexpectedType, InternalError) from soroban-env-host with clear descriptions to help developers trace invalid arguments and conversions

ℹ️ Repo Maintainers: To accept this application, review their application or assign @mansory-01 to this issue.

[drips-wave]

Congratulations, @mansory-01! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

🧑‍💻 @mansory-01: 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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