optimclaw/fuzz

IronClaw Fuzz Targets

Fuzz testing for security-critical input parsing paths using cargo-fuzz (libFuzzer).

Targets

Target	What it exercises
fuzz_safety_sanitizer	Prompt injection pattern detection (Aho-Corasick + regex)
fuzz_safety_validator	Input validation (length, encoding, forbidden patterns)
fuzz_leak_detector	Secret leak detection (API keys, tokens, credentials)
fuzz_tool_params	Tool parameter JSON validation pipeline
fuzz_config_env	Configuration parsing (TOML, JSON)

Setup

cargo install cargo-fuzz
rustup install nightly

Running

# Run a specific target (runs until stopped or crash found)
cargo +nightly fuzz run fuzz_safety_sanitizer

# Run with a time limit (5 minutes)
cargo +nightly fuzz run fuzz_leak_detector -- -max_total_time=300

# Run all targets for 60 seconds each
for target in fuzz_safety_sanitizer fuzz_safety_validator fuzz_leak_detector fuzz_tool_params fuzz_config_env; do
    echo "==> $target"
    cargo +nightly fuzz run "$target" -- -max_total_time=60
done

Adding New Targets

1. Create fuzz/fuzz_targets/fuzz_<name>.rs following the existing pattern
2. Add a [[bin]] entry in fuzz/Cargo.toml
3. Create fuzz/corpus/fuzz_<name>/ for seed inputs
4. Exercise real IronClaw code paths, not just generic serde