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 abstractonion/cadence --skill cadence-diff-checkgit clone --depth 1 https://github.com/abstractonion/cadenceWrote 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/abstractonion/cadence/cadence-diff-check)<a href="https://agentmods.dev/skills/abstractonion/cadence/cadence-diff-check"><img src="https://agentmods.dev/badge/skills/abstractonion/cadence/cadence-diff-check.svg" alt="Measured on agentmods" 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 | $0.00027 | $0.00192 |
| Opus 5 | $0.00014 | $0.00096 |
| Sonnet 5 | $0.00005 | $0.00038 |
| Haiku 4.5 | $0.00003 | $0.00019 |
Grade A, and why
cadence-diff-check 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
Diff Check
You are reviewing the current diff this turn — staged changes first, then unstaged if relevant. Read it as a stranger who does not trust the author. Flag scope drift (changes unrelated to the stated intent), incomplete refactors, missing callers, unsupported claims, and anywhere the diff promises more than it delivers. Quote the specific lines or hunks you are citing; vague review notes are not allowed. Flag any ship-ready claim that lacks a matching evidence bundle per verify-with-runtime (tests, runtime output, screenshots, or an explicit blocked_reason). Do not edit files — produce a review only, ending with a clear ship / hold verdict.
Anchored in
- self-review-before-handoff
- verify-with-runtime
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 · 15 lines · 27 tokens per session scan A 178866ee41aa
cadence-diff-check is a skill published in the GitHub repository abstractonion/cadence (4 stars, last pushed 3mo ago), licensed MIT. It adds 27 tokens to every session and 192 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 2026-08-31.
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