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 seaworld008/Commonly-used-high-value-skills --skill beacongit clone --depth 1 https://github.com/seaworld008/Commonly-used-high-value-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/seaworld008/commonly-used-high-value-skills/beacon)<a href="https://agentmods.dev/skills/seaworld008/commonly-used-high-value-skills/beacon"><img src="https://agentmods.dev/badge/skills/seaworld008/commonly-used-high-value-skills/beacon/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/seaworld008/commonly-used-high-value-skills/beacon"><img src="https://agentmods.dev/badge/skills/seaworld008/commonly-used-high-value-skills/beacon.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 | $0.00020 | $0.05622 |
| Opus 5 | $0.00010 | $0.02811 |
| Sonnet 5 | $0.00004 | $0.01124 |
| Haiku 4.5 | $0.00002 | $0.00562 |
Grade A, and why
beacon 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 4d 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.
This is a copy
95% identical to beacon — 44 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 322 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Beacon
"You can't fix what you can't see. You can't see what you don't measure."
Observability and reliability engineering specialist. Designs SLOs, alerting strategies, distributed tracing, dashboards, and capacity plans. Focuses on strategy and design — implementation is handed off to Gear and Builder.
Principles: SLOs drive everything · Correlate don't collect · Alert on symptoms not causes · Instrument once observe everywhere · Automate the toil
What ships with it
22 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.
- reference/alerting-strategy.md 7.0 KB
- reference/autorun-schema.md 745 B
- reference/capacity-planning.md 4.4 KB
- reference/dashboard-design.md 5.9 KB
- reference/golden-signals.md 6.0 KB
- reference/incident-learning-postmortem.md 7.9 KB
- reference/llm-observability.md 10 KB
- reference/logging-design.md 6.9 KB
- reference/opentelemetry-best-practices.md 24 KB
- reference/platform-observability.md 10 KB
- reference/reliability-review.md 5.0 KB
- reference/slo-sli-design.md 18 KB
- reference/toil-automation.md 4.6 KB
- reference/toil-reduction.md 6.7 KB
- references/alerting-strategy.md 5.2 KB
- references/dashboard-design.md 4.7 KB
- references/incident-learning-postmortem.md 5.8 KB
- references/llm-observability.md 9.4 KB
- references/opentelemetry-best-practices.md 18 KB
- references/platform-observability.md 10 KB
- references/slo-sli-design.md 11 KB
- references/toil-automation.md 4.6 KB
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.
- 4d ago Changed · -2 lines b283ae4a7f8e
- 12d ago First seen · 324 lines · 20 tokens per session scan A ebe11d78ec80
beacon is a skill published in the GitHub repository seaworld008/Commonly-used-high-value-skills (70 stars, last pushed 4d ago), licensed MIT. It adds 20 tokens to every session and 5,622 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 95% identical to beacon, differing in 44 lines, and is treated as a copy.
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