Borrowing it
Nothing to install: this file belongs to ja11sop/cuppa. 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/ja11sop/cuppa/master/AGENTS.mdgit clone --depth 1 https://github.com/ja11sop/cuppaWrote 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/ja11sop/cuppa/agents-md)<a href="https://agentmods.dev/instructions/ja11sop/cuppa/agents-md"><img src="https://agentmods.dev/badge/instructions/ja11sop/cuppa/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/ja11sop/cuppa/agents-md"><img src="https://agentmods.dev/badge/instructions/ja11sop/cuppa/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 | $0.15075 | $0.15075 |
| Opus 5.5 | $0.06030 | $0.06030 |
| Sonnet 5.5 | $0.03015 | $0.03015 |
| Haiku 4.5 | $0.01507 | $0.01507 |
Grade A, and why
Cuppa build system scanned grade A with 1 finding 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 7d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
anonymous reads use the public GitHub HTTP API, `curl`, or `urllib` — still not `gh`. The source is not reproduced here
Licensed BSL-1.0
The repository is licensed BSL-1.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
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.
- 7d ago Changed · -1 lines · -39 tokens per session 559c682a398e
- 10d ago Changed · +58 tokens per session 6146627647ae
- 1mo ago Changed · +6 lines · +76 tokens per session c4cbfc58f431
- 1mo ago Changed · -4 tokens per session 9fd2d5583783
- 1mo ago Changed · +15 lines · +97 tokens per session 897b74d5a1b0
- 1mo ago Changed · +61 lines · +1,138 tokens per session 48077ce1d1d3
- 1mo ago Changed · +18 lines · +315 tokens per session ac54b306f975
- 1mo ago Changed · +3 lines · +75 tokens per session 70c9a91a2188
- 2mo ago Changed · +1 lines · +8 tokens per session 40372cbbb7e8
- 2mo ago First seen · 936 lines · 13,351 tokens per session scan A 8dd5d852ea0b
Cuppa build system is an instructions file published in the GitHub repository ja11sop/cuppa (24 stars, last pushed 4d ago), licensed BSL-1.0. It adds 15,075 tokens to every session, about $0.0603 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Cuppa build system compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| Cuppa build systemja11sop/cuppa | Instructions file | 24 | 4d ago | BSL-1.0 | A | 15,075 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,516 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | today | MIT | A | 4,680 | Codex, OpenCode |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,093 | GitHub Copilot |
| vscode model-prompts.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 2,022 | GitHub Copilot |