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 instructions/thuong-nc/perlytics-skill/agents-mdgit clone --depth 1 https://github.com/thuong-nc/perlytics-skillWrote 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/instructions/thuong-nc/perlytics-skill/agents-md)<a href="https://agentmods.dev/instructions/thuong-nc/perlytics-skill/agents-md"><img src="https://agentmods.dev/badge/instructions/thuong-nc/perlytics-skill/agents-md.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 | $0.00487 | $0.00487 |
| Opus 5 | $0.00244 | $0.00244 |
| Sonnet 5 | $0.00097 | $0.00097 |
| Haiku 4.5 | $0.00049 | $0.00049 |
Grade A, and why
perlytics-skill AGENTS.md 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- perlytics-skill CLAUDE.md — 91% identical, 4 lines differ
What it actually says
Perlytics Analytics Skills
Skills are installed at .codex/skills/perlytics-skill/. When the user asks any analytics question, always use the matching skill below. Do not analyze data manually.
Trigger map
| User intent | Skill to use |
|---|---|
| Open-ended: "analyze", "what's going on", "phân tích", "tell me about this data" | analysis-readout |
| "why did X drop/spike", "what drove this change", "tại sao giảm" | root-cause-analysis |
| "segment customers", "who are our best customers", "RFM", "phân khúc" | segmentation-analysis |
| "retention", "cohort", "do customers come back" | cohort-retention |
| "funnel", "conversion drop", "where do users drop off" | funnel-analysis |
| "forecast", "predict next quarter", "dự báo" | forecasting-readout |
| "A/B test", "experiment results", "did the test work" | experiment-readout |
| New dataset, no specific question yet | data-quality-check first, then exploratory-data-analysis |
| "write a memo", "summary for stakeholders", "báo cáo" | stakeholder-memo |
| "is this metric well-defined", "what should we measure" | metric-definition |
| "break down the problem", "where to look" | hypothesis-tree |
| "is this causal", "does X cause Y" | causal-inference-check |
| "critique this dashboard" | dashboard-critique |
| "what data do we need", "write a data request" | data-request-spec |
| Question is ambiguous and needs scoping | clarify-question |
How to use a skill
- Read
.codex/skills/perlytics-skill/skills/<skill-name>/SKILL.md - Follow the workflow step by step — never skip steps
analysis-readoutalways chains the full pipeline and writes output toreport-YYYY-MM-DD.md
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 First seen · 32 lines · 487 tokens per session scan A 1e2e64bf51ba
perlytics-skill AGENTS.md is an instructions file published in the GitHub repository thuong-nc/perlytics-skill (5 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 487 tokens to every session, about $0.0024 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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codex AGENTS.md
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