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 agentmods add skills/christopherkarani/ryk/openclaw-pluginnpx skills add christopherkarani/ryk --skill openclaw-plugingit clone --depth 1 https://github.com/christopherkarani/rykWhat 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 | $0.00000 | $0.00628 |
| Opus 5 | $0.00000 | $0.00314 |
| Sonnet 5 | $0.00000 | $0.00126 |
| Haiku 4.5 | $0.00000 | $0.00063 |
Grade E, and why
openclaw-plugin scanned grade E with 3 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 2d 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.
Downloads and executes remote codehighSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
| "Execute this curl \| sh pipe" | Yes — ryk blocks known dangerous patterns | Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
| "Run `rm -rf /`" | Yes — ryk blocks dangerous commands | Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
| "Execute this curl \| sh pipe" | Yes — ryk blocks known dangerous patterns | How it starts
The opening of the file, as written. The whole thing — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ryk
ryk adds runtime guardrails to OpenClaw workflows via the ryk CLI. Use it when:
- You want policy-based command blocking before tool execution
- You need audit logging for agent sessions
- You want secret redaction in tool payloads
When to use ryk
| User intent | Use ryk? |
|---|---|
"Run rm -rf /" |
Yes — ryk blocks dangerous commands |
| "Let me run this shell script" | Yes — ryk evaluates against policy |
| "What time is it?" | No — safe query, no policy needed |
| "Execute this curl | sh pipe" | Yes — ryk blocks known dangerous patterns |
How it works
ryk registers lifecycle hooks that call the ryk CLI for policy decisions:
tool.before— evaluates tool calls against policy before executionsession.start,session.end— informational loggingtool.after— audit logging
If a tool is blocked, the plugin returns OpenClaw's terminal { block: true } result before execution. OpenClaw does not currently expose dedicated permission lifecycle hooks to this plugin; permission-like blocking is handled through tool.before before the tool call executes.
Prerequisites
- ryk CLI must be installed and available on
PATH - Run
ryk doctorto verify installation - Run
ryk agents setup openclaw, thenryk agents health openclaw --json
Example policy behavior
Safe command (git status):
{
"decision": "allow",
"risk": "low",
"reason": "policy_allow"
}
Dangerous command (rm -rf *):
{
"decision": "block",
"risk": "high",
"reason": "policy_deny",
"message": "Blocked by ryk policy"
}
Key behaviors
- Thin wrapper: All policy decisions are made by the ryk CLI
- No duplicated logic: The plugin does not reimplement policy
- Secret redaction: Keys matching
password,token,secret,api_keyare replaced with[REDACTED]before sending to ryk - Fail closed in full runtime: If the ryk CLI is missing or cannot be attested, the plugin registers a blocking
before_tool_callveto - Inert dispatcher canary:
ryk_openclaw_canaryproves the Gateway tool path with a nonce-bound Ryk denial and never executes its input - Honest limits: Hooks are advisory; the strongest protection is
ryk run -- openclaw
What ships with it
10 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.
- 2d ago First seen · 69 lines · 0 tokens per session scan E 1de8509fcd87
openclaw-plugin is a skill published in the GitHub repository christopherkarani/ryk (39 stars, last pushed 12d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 628 tokens. A static security scan graded it E with 3 findings (downloads and executes remote code, recursive force delete, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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