fuzzing-obstacles
Improve fuzzing coverage by bypassing obstacles like checksums and non-determinism via conditional compilation.
Install
npx skills add https://github.com/trailofbits/skills --skill fuzzing-obstaclesStats
| Total installs | 1,266 |
| Weekly installs | 1.3K |
| GitHub stars | 4.0K |
| First seen | Jan 19, 2026 |
| Source | @trailofbits/skills |
Summary
- Use conditional compilation (FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION in C/C++, cfg!(fuzzing) in Rust) to skip obstacles during fuzzing builds while preserving production behavior
- Common obstacles include checksum verification, non-deterministic PRNGs, time-based seeds, and complex validation that prevents the fuzzer from exploring deeper code paths
- Apply incrementally by identifying unreachable code via coverage analysis, patching one obstacle at a time, and measuring coverage improvement
- Assess false positive risk by checking whether downstream code depends on assumptions made by skipped validation; use defensive defaults when necessary
Tags
Related skills
| Skill | Installs | vs fuzzing-obstacles |
|---|---|---|
| token-integration-analyzer | 1,300 | +34 |
| audit-prep-assistant | 1,254 | -12 |
| substrate-vulnerability-scanner | 1,173 | -93 |
| cosmos-vulnerability-scanner | 1,187 | -79 |
| clerk-backend-api | 1,306 | +40 |
FAQ
- How many installs does fuzzing-obstacles have?
- fuzzing-obstacles has 1,266 total installs and 1.3K installs this week.
- Where is fuzzing-obstacles hosted?
- fuzzing-obstacles is published by @trailofbits/skills at https://github.com/trailofbits/skills.
- How many GitHub stars does fuzzing-obstacles have?
- fuzzing-obstacles has 4.0K GitHub stars.
- When was fuzzing-obstacles first indexed?
- OrangeBot.AI first indexed fuzzing-obstacles on Jan 19, 2026.
- How do I install fuzzing-obstacles?
- Run: npx skills add https://github.com/trailofbits/skills --skill fuzzing-obstacles