Borrowing it
Nothing to install: this file belongs to thecompez/ai-for-modern-cpp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/thecompez/ai-for-modern-cpp/main/AGENTS.mdgit clone --depth 1 https://github.com/thecompez/ai-for-modern-cppWrote 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/thecompez/ai-for-modern-cpp/agents-md)<a href="https://agentmods.dev/instructions/thecompez/ai-for-modern-cpp/agents-md"><img src="https://agentmods.dev/badge/instructions/thecompez/ai-for-modern-cpp/agents-md/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/instructions/thecompez/ai-for-modern-cpp/agents-md"><img src="https://agentmods.dev/badge/instructions/thecompez/ai-for-modern-cpp/agents-md.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 | $0.14647 | $0.14647 |
| Opus 5.5 | $0.05859 | $0.05859 |
| Sonnet 5.5 | $0.02929 | $0.02929 |
| Haiku 4.5 | $0.01465 | $0.01465 |
Grade A, and why
ai-for-modern-cpp 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 10d 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.
The source is not reproduced here
A licence we could not identify
The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.
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.
- 10d ago Changed · +11 lines · +166 tokens per session deac79f2098a
- 28d ago Changed · +133 lines · +2,056 tokens per session d2a8725f6ab5
- 1mo ago Changed · +88 lines · +1,307 tokens per session 0501820b23d8
- 2mo ago First seen · 974 lines · 11,118 tokens per session scan A 28d383ea60d3
ai-for-modern-cpp AGENTS.md is an instructions file published in the GitHub repository thecompez/ai-for-modern-cpp (27 stars, last pushed 10d ago), with no licence file. It adds 14,647 tokens to every session, about $0.0586 per session on Opus 5.5. 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.
ai-for-modern-cpp AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| ai-for-modern-cpp AGENTS.mdthecompez/ai-for-modern-cpp | Instructions file | 27 | 10d ago | none | A | 14,647 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |