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/cyrusagents/cyrus/implementationnpx skills add cyrusagents/cyrus --skill implementationgit clone --depth 1 https://github.com/cyrusagents/cyrusWhat 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 | $0.00024 | $0.00112 |
| Opus 5 | $0.00012 | $0.00056 |
| Sonnet 5 | $0.00005 | $0.00022 |
| Haiku 4.5 | $0.00002 | $0.00011 |
Grade A, and why
implementation 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 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.
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
Implementation
Implement the requested changes:
- Write production-ready code that follows existing patterns and conventions
- Run tests to verify your implementation works correctly
- Handle edge cases and error scenarios appropriately
- Keep changes focused on what was requested — avoid unrelated improvements
If tests fail, fix them before moving on to the next phase of the workflow.
When implementation is complete, proceed to the verification and shipping phase.
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 · 18 lines · 24 tokens per session scan A dc22d513c5a1
implementation is a skill published in the GitHub repository cyrusagents/cyrus (792 stars, last pushed 3d ago), licensed Apache-2.0. It adds 24 tokens to every session and 112 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 2026-08-30.
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