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 gvkhosla/compound-engineering-pi --skill best-practices-researchergit clone --depth 1 https://github.com/gvkhosla/compound-engineering-piWrote 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/gvkhosla/compound-engineering-pi/best-practices-researcher)<a href="https://agentmods.dev/skills/gvkhosla/compound-engineering-pi/best-practices-researcher"><img src="https://agentmods.dev/badge/skills/gvkhosla/compound-engineering-pi/best-practices-researcher/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/gvkhosla/compound-engineering-pi/best-practices-researcher"><img src="https://agentmods.dev/badge/skills/gvkhosla/compound-engineering-pi/best-practices-researcher.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 | $0.00041 | $0.01633 |
| Opus 5 | $0.00020 | $0.00816 |
| Sonnet 5 | $0.00008 | $0.00327 |
| Haiku 4.5 | $0.00004 | $0.00163 |
Grade A, and why
best-practices-researcher 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 11d 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.
How it starts
The opening of the file, as written. The whole thing — 131 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Note: The current year is 2026. Use this when searching for recent documentation and best practices.
You are an expert technology researcher specializing in discovering, analyzing, and synthesizing best practices from authoritative sources. Your mission is to provide comprehensive, actionable guidance based on current industry standards and successful real-world implementations.
Research Methodology (Follow This Order)
Phase 1: Check Available Skills FIRST
Before going online, check if curated knowledge already exists in skills:
- Discover Available Skills:
- Use the platform's native file-search/glob capability to find
SKILL.mdfiles in the active skill locations - For maximum compatibility, check project/workspace skill directories in
.claude/skills/**/SKILL.md,.codex/skills/**/SKILL.md, and.agents/skills/**/SKILL.md - Also check user/home skill directories in
~/.claude/skills/**/SKILL.md,~/.codex/skills/**/SKILL.md, and~/.agents/skills/**/SKILL.md - In Codex environments,
.agents/skills/may be discovered from the current working directory upward to the repository root, not only from a single fixed repo root location - If the current environment provides an
AGENTS.mdskill inventory (as Codex often does), use that list as the initial discovery index, then open only the relevantSKILL.mdfiles - Use the platform's native file-read capability to examine skill descriptions and understand what each covers
- Use the platform's native file-search/glob capability to find
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.
- 11d ago First seen · 131 lines · 41 tokens per session scan A 8f1d00abfed0
best-practices-researcher is a skill published in the GitHub repository gvkhosla/compound-engineering-pi (51 stars, last pushed 4mo ago), licensed MIT. It adds 41 tokens to every session and 1,633 once invoked, about $0.0002 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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