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 j4flmao/agent-skills --skill ebpf-observabilitygit clone --depth 1 https://github.com/j4flmao/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/j4flmao/agent-skills/ebpf-observability)<a href="https://agentmods.dev/skills/j4flmao/agent-skills/ebpf-observability"><img src="https://agentmods.dev/badge/skills/j4flmao/agent-skills/ebpf-observability/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/j4flmao/agent-skills/ebpf-observability"><img src="https://agentmods.dev/badge/skills/j4flmao/agent-skills/ebpf-observability.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 | $0.00016 | $0.00300 |
| Opus 5 | $0.00008 | $0.00150 |
| Sonnet 5 | $0.00003 | $0.00060 |
| Haiku 4.5 | $0.00002 | $0.00030 |
Grade A, and why
eBPF Observability 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 8d 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
eBPF Observability
Focus on creating kernel-level monitoring and tracing applications using eBPF.
eBPF Snippet (C)
#include <uapi/linux/ptrace.h>
#include <linux/sched.h>
BPF_HASH(start, u32);
int do_sys_execve(struct pt_regs *ctx) {
u32 pid = bpf_get_current_pid_tgid();
u64 ts = bpf_ktime_get_ns();
start.update(&pid, &ts);
return 0;
}
Loader Snippet (Python)
from bcc import BPF
b = BPF(text="""...""")
b.attach_kprobe(event=b.get_syscall_fnname("execve"), fn_name="do_sys_execve")
print("Tracing execve... Ctrl-C to end.")
try:
b.trace_print()
except KeyboardInterrupt:
exit()
Trace Diagram
%%{init: {"theme": "default", "flowchart": {"useMaxWidth": true}}}%%
graph TD
A["User Space App"] -->|"Syscall"| B("Kernel Space")
B --> C{"eBPF Program"}
C -->|"Collects Data"| D["eBPF Map"]
D -->|"Reads"| E["Observability Agent"]
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.
- 8d ago First seen · 47 lines · 16 tokens per session scan A 69071bd6dbbd
eBPF Observability is a skill published in the GitHub repository j4flmao/agent-skills (23 stars, last pushed 6d ago), licensed MIT. It adds 16 tokens to every session and 300 once invoked, about $0.0001 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 2026-09-03.
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