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/zebbern/termstack/copilot-instructionsgit clone --depth 1 https://github.com/zebbern/termstackWhat 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 | $0.04756 | $0.04756 |
| Opus 5 | $0.02378 | $0.02378 |
| Sonnet 5 | $0.00951 | $0.00951 |
| Haiku 4.5 | $0.00476 | $0.00476 |
Grade A, and why
termstack copilot-instructions.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 yesterday.
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
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
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.
- yesterday First seen · 350 lines · 4,756 tokens per session scan A c2edceb52b02
termstack copilot-instructions.md is an instructions file published in the GitHub repository zebbern/termstack (5 stars, last pushed 4mo ago), with no licence file. It adds 4,756 tokens to every session, about $0.0238 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.
Other instructions, from other repositories
parallel-code CLAUDE.md
Instructions for johannesjo/parallel-code, covering parallel code, stack, commands, project structure and conventions.
cezar AGENTS.md
Instructions for open-mercato/cezar, covering agents.md — working in this repository, zero config, changing a mechanism that already works, the http api and repository layout.
peri CLAUDE.md
Instructions for KonghaYao/peri, covering claude.md — perihelion, 先读什么, 跨仓库契约, 任务路由 and 代码定位.
many-ai-cli CLAUDE.md
Instructions for ishizakahiroshi/many-ai-cli, covering many-ai-cli 開発ガイド, プロジェクト概要, 新規 provider を増やす提案をしない（2026-08-13 制定）, デスクトップアプリ化・microsoft store 提出は提案しない（2026-08-14 制定） and 現在の実装状態.
seamless AGENTS.md
Instructions for 0spoon/seamless, covering agents.md, go style rules, general, package structure and naming.
seamless CLAUDE.md
Instructions for 0spoon/seamless, covering claude.md, what is seamless?, project structure, common commands and single test.