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 02loveslollipop/OpenCROW --skill opencrow-stego-toolboxgit clone --depth 1 https://github.com/02loveslollipop/OpenCROWWrote 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/02loveslollipop/opencrow/opencrow-stego-toolbox)<a href="https://agentmods.dev/skills/02loveslollipop/opencrow/opencrow-stego-toolbox"><img src="https://agentmods.dev/badge/skills/02loveslollipop/opencrow/opencrow-stego-toolbox/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/02loveslollipop/opencrow/opencrow-stego-toolbox"><img src="https://agentmods.dev/badge/skills/02loveslollipop/opencrow/opencrow-stego-toolbox.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00056 | $0.00449 |
| Opus 5 | $0.00028 | $0.00225 |
| Sonnet 5 | $0.00011 | $0.00090 |
| Haiku 4.5 | $0.00006 | $0.00045 |
Grade A, and why
opencrow-stego-toolbox 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 12d 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
OpenCROW Stego Toolbox
Runtime preflight
Probe required commands with command -v and Python modules with importlib.util.find_spec before use. Prefer a PATH-resolved OpenCROW MCP helper or the ctf/sage environment when available, then the managed helper or system Python. If a capability is missing, stop that path safely and report the exact missing command or module.
Use this skill for image or audio artifacts that may hide data in metadata, bit planes, or container structures. It covers steghide for embedded payload extraction and zsteg for PNG/BMP stego triage.
Quick Start
Start the MCP server from the installed CLI:
opencrow-stego-mcp
Verify the mapped stack:
python3 scripts/verify_toolkit.py
Workflow
- Start with
zstegwhen the target is a PNG or BMP and you suspect LSB or plane-based data hiding. - Start with
steghidewhen the file type matches its embedding model and a passphrase may be involved. - Combine this toolbox with
opencrow-forensics-toolboxwhen metadata or carved files may be involved too. - If a full profile was installed, use the manual StegSolve or OpenStego steps from the installer summary for GUI-assisted analysis.
- Prefer the MCP server operations first:
toolbox_info,toolbox_verify,toolbox_capabilities,stego_inspect, andstego_extract.
Resources
opencrow-stego-mcp: stdio MCP server for typed stego inspection and extraction workflows.scripts/verify_toolkit.py: confirm that the mapped stego tools are installed.references/tooling.md: quick guidance for choosing stego tools.
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 12d ago First seen · 41 lines · 56 tokens per session scan A 4522bc87b88f
opencrow-stego-toolbox is a skill published in the GitHub repository 02loveslollipop/OpenCROW (8 stars, last pushed today), licensed Apache-2.0. It adds 56 tokens to every session and 449 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 2026-08-31.
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