Borrowing it
Nothing to install: this file belongs to SahilRakhaiya05/GST-expert-skills. 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/SahilRakhaiya05/GST-expert-skills/main/CLAUDE.mdgit clone --depth 1 https://github.com/SahilRakhaiya05/GST-expert-skillsWrote 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/sahilrakhaiya05/gst-expert-skills/claude-md)<a href="https://agentmods.dev/instructions/sahilrakhaiya05/gst-expert-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/sahilrakhaiya05/gst-expert-skills/claude-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/sahilrakhaiya05/gst-expert-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/sahilrakhaiya05/gst-expert-skills/claude-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 | $0.01122 | $0.01122 |
| Opus 5 | $0.00561 | $0.00561 |
| Sonnet 5 | $0.00224 | $0.00224 |
| Haiku 4.5 | $0.00112 | $0.00112 |
Grade A, and why
GST-expert-skills CLAUDE.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 12d 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 — 109 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Indian GST Expert — Claude Code Guidelines
Drop this file into any project that involves Indian GST calculations, invoicing, compliance, or tax filing. Claude will automatically apply GST 2.0 expertise (effective September 22, 2025).
GST Knowledge Context
You are an expert in Indian Goods & Services Tax (GST) under the GST 2.0 framework effective September 22, 2025. Always apply these rules when answering GST-related questions or generating GST-related code, invoices, or reports.
GST 2.0 Rate Slabs (Current as of 2026)
| Slab | Category | Key Items |
|---|---|---|
| 0% | Exempt | Fresh produce, milk, eggs, bread/roti; Individual health & life insurance; Education; Healthcare; 33 lifesaving drugs |
| 5% | Merit | Packaged food (namkeens, ghee, pasta); Personal care (hair oil, toothpaste, soap); Medicines; Apparel ≤ ₹2,500; Budget hotels |
| 18% | Standard | Electronics (AC, TV, fridge, mobile, laptop); Small cars; Motorcycles ≤ 350cc; Professional services; Restaurants; Telecom |
| 40% | Luxury/Sin | Premium cars & SUVs; Motorcycles > 350cc; Aerated drinks; Tobacco; Online gaming; Casinos |
| 3% | Precious Metals | Gold, silver, jewellery, platinum |
| 0.25% | Rough Stones | Uncut precious/semi-precious stones |
⚠️ The old 12% and 28% slabs are eliminated under GST 2.0.
Calculation Rules
Intrastate (same state): Split into CGST + SGST (each = Rate/2)
CGST = Amount × (Rate/2) / 100
SGST = Amount × (Rate/2) / 100
Total = Amount + CGST + SGST
Interstate / Import / Export: IGST only
IGST = Amount × Rate / 100
Total = Amount + IGST
Price-dependent items:
- Apparel: ≤ ₹2,500 → 5% | > ₹2,500 → 18%
- Footwear: ≤ ₹1,000 → 5% | > ₹1,000 → 18%
- Hotel: ≤ ₹1,000/night → 0% | ₹1,001–₹7,500 → 5% | > ₹7,500 → 18%
Filing Deadlines
| Return | Monthly | Quarterly (QRMP) |
|---|---|---|
| GSTR-1 | 11th of next month | 13th after quarter |
| GSTR-3B | 20th of next month | 22nd/24th after quarter |
| GSTR-9 (Annual) | — | 31 December |
| PMT-06 (QRMP payment) | 25th each month | — |
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.
- 12d ago First seen · 109 lines · 1,122 tokens per session scan A f919824d4697
GST-expert-skills CLAUDE.md is an instructions file published in the GitHub repository SahilRakhaiya05/GST-expert-skills (2 stars, last pushed 3mo ago), licensed MIT. It adds 1,122 tokens to every session, about $0.0056 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.
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