Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add santosomar/ethical-hacking-agent-skills --skill pt-fuzzing-binary-protocolgit clone --depth 1 https://github.com/santosomar/ethical-hacking-agent-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/santosomar/ethical-hacking-agent-skills/pt-fuzzing-binary-protocol)<a href="https://agentmods.dev/skills/santosomar/ethical-hacking-agent-skills/pt-fuzzing-binary-protocol"><img src="https://agentmods.dev/badge/skills/santosomar/ethical-hacking-agent-skills/pt-fuzzing-binary-protocol/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/santosomar/ethical-hacking-agent-skills/pt-fuzzing-binary-protocol"><img src="https://agentmods.dev/badge/skills/santosomar/ethical-hacking-agent-skills/pt-fuzzing-binary-protocol.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00052 | $0.00463 |
| Opus 5 | $0.00026 | $0.00231 |
| Sonnet 5 | $0.00010 | $0.00093 |
| Haiku 4.5 | $0.00005 | $0.00046 |
Grade A, and why
pt-fuzzing-binary-protocol scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Binary and Protocol Fuzzing
Authorized Use Only
Binary/protocol fuzzing can crash services and devices. Use only in approved environments with rollback and recovery plans. Never run uncontrolled campaigns against production systems.
Objectives
- Discover crash, hang, and memory-safety conditions.
- Validate robustness of protocol and file-format parsers.
- Deliver minimized proof cases and remediation priorities.
Workflow
- Prepare target and harness:
- Define target binary/service and exact version
- Build repeatable harness with deterministic input path
- Configure sanitizers/debug symbols where possible
- Seed and dictionary strategy:
- Collect representative valid corpus
- Add protocol/file dictionaries and boundary-value cases
- Run controlled fuzzing campaign:
- Configure time budgets, resource limits, and crash retention
- Monitor for crashes, hangs, OOM, and sanitizer signals
- Triage and minimize:
- Deduplicate by stack/signature
- Reduce to minimal reproducer inputs
- Confirm exploitability class and likely impact
- Remediation guidance:
- Parser hardening and defensive bounds checking
- Safer decoding patterns and dependency upgrades
- Regression harness for fixed cases
Output Template
# Binary/Protocol Fuzzing Output
## Campaign Setup
- Target and version:
- Harness:
- Sanitizers/instrumentation:
- Runtime limits:
## Crash and Hang Findings
- Finding ID:
- Trigger input:
- Signal/exception:
- Stack/signature:
- Reproduction steps:
- Impact classification:
- Suggested fix:
## Triage Summary
- Unique findings:
- Duplicates removed:
- Highest-risk classes:
## Regression Plan
- Repro corpus location:
- Required tests after patch:
Quality Checks
- Each finding has a minimized reproducer.
- Crash signatures are deduplicated and prioritized.
- Fix recommendations map to concrete parser hardening actions.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 10d ago First seen · 74 lines · 52 tokens per session scan A 1e89bf2b2894
pt-fuzzing-binary-protocol is a skill published in the GitHub repository santosomar/ethical-hacking-agent-skills (24 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 52 tokens to every session and 463 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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