# Agent decompilation: a byte-matching retrospective

> Maurice Heumann describes replacing plausible-looking agent output with compiler-based checks of reconstructed functions, relocations, data and types. The retrospective reports 99% function presence and 83% of all functions byte-exact, while keeping the reconstruction code private.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-10-17
- Added to the catalog: 2026-10-17
- Original resource: <https://momo5502.com/posts/2026-10-09-game-decompilation/>
- Catalog page: <https://awesomerea.org/resources/agent-decompilation-oracle-case/>
- Record JSON: <https://awesomerea.org/resources/agent-decompilation-oracle-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/agent-decompilation-oracle-case/index.md)

## Requirements & limits

- **Scope:** Author retrospective dated 2026-10-09; the reviewed article leaves the game unnamed.
- **Scope:** The project uses the original compiler and binary as references; no public implementation or reproducible artifact is supplied.
- **Testing evidence:** Coverage figures and runtime success are author-reported.
- **Scope:** A documented case study.

## Primary sources

1. <https://momo5502.com/posts/2026-10-09-game-decompilation/>

## More in Games

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- [Animal Crossing: Wild World: matching Korean DS decompilation with differential runtime checks](https://awesomerea.org/resources/animal-crossing-wild-world-decomp-case/index.md) · Case study
- [Animal Forest: an in-progress matching N64 decompilation](https://awesomerea.org/resources/animal-forest-n64-decomp-case/index.md) · Case study
- [BFM-decomp: Brave Fencer Musashi matching decompilation](https://awesomerea.org/resources/bfm-decomp-case/index.md) · Case study
- [Breath of the Wild: per-function matching decompilation of the Switch executable](https://awesomerea.org/resources/botw-decomp-case/index.md) · Case study
- [Castlevania: Symphony of the Night: matching decompilation across PlayStation, PSP and Saturn builds](https://awesomerea.org/resources/sotn-matching-decomp-case/index.md) · Case study

## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.