Borrowing it
Nothing to install: this file belongs to harshii0509/designStack. 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/harshii0509/designStack/main/AGENTS.mdgit clone --depth 1 https://github.com/harshii0509/designStackWrote 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/harshii0509/designstack/agents-md)<a href="https://agentmods.dev/instructions/harshii0509/designstack/agents-md"><img src="https://agentmods.dev/badge/instructions/harshii0509/designstack/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/harshii0509/designstack/agents-md"><img src="https://agentmods.dev/badge/instructions/harshii0509/designstack/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 | $0.00365 | $0.00365 |
| Opus 5.5 | $0.00146 | $0.00146 |
| Sonnet 5.5 | $0.00073 | $0.00073 |
| Haiku 4.5 | $0.00036 | $0.00036 |
Grade A, and why
designStack 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 2mo 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.
What it actually says
designStack — Design Rules for Codex CLI
This file is read automatically by Codex CLI. It applies the designStack four principles and your project's Design Bible to every AI-assisted code change.
Four principles (always apply these)
- Think in references, not descriptions. If the user says "make it look better", ask for a reference or specific element — don't guess what "better" means.
- Summarize before changing. Before editing any UI or CSS file, write one sentence saying what you're about to change and why. Wait for confirmation.
- Read the Bible before touching visuals. If
design/DESIGN-BIBLE.mdexists in this project, read it before making any visual, layout, or style change. Apply its color, font, spacing, and component rules. - Flag drift, don't silently fix. If you notice a value (color, font size, spacing) that doesn't match the Design Bible, say so before changing it.
Design Bible
Fallback (no Design Bible)
If design/DESIGN-BIBLE.md does not exist in this project, tell the user:
"I don't see a Design Bible for this project. Run
/ds-contextin Claude Code to set one up — it takes 5 minutes and I'll follow your brand rules automatically after that."
Generated by designStack — the AI design companion for designers building their own products.
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.
- 2mo ago First seen · 33 lines · 365 tokens per session scan A 1161f8e20dac
designStack AGENTS.md is an instructions file published in the GitHub repository harshii0509/designStack (13 stars, last pushed 5mo ago), licensed MIT. It adds 365 tokens to every session, about $0.0015 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.
designStack AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| designStack AGENTS.mdharshii0509/designStack | Instructions file | 13 | 5mo ago | MIT | A | 365 | 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 | today | 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 |