# Vietnamese Finance Copy > Writes and reviews native-quality Vietnamese (vi-VN) finance content — hóa đơn điện tử and e-invoice fields, báo cáo tài chính and management reports, investor updates and board decks, pricing and payment-terms pages, fintech, banking and insurance product copy, loan and credit disclosures, and thuế GTGT, TNDN and TNCN tax correspondence. Use when drafting Vietnamese financial statements or finan… - **Type:** Skill - **Install:** `agentstack add skill-trussary-vietnamese-language-skill-vietnamese-finance-copy` - **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior - **Seller:** [trussary](https://agentstack.voostack.com/s/trussary) - **Installs:** 0 - **Category:** [Finance & Payments](https://agentstack.voostack.com/c/finance-and-payments) - **Latest version:** 0.1.0 - **License:** MIT - **Upstream author:** [trussary](https://github.com/trussary) - **Source:** https://github.com/trussary/vietnamese-language-skill/tree/main/skills/vietnamese-finance-copy ## Install ```sh agentstack add skill-trussary-vietnamese-language-skill-vietnamese-finance-copy ``` Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent. ## About # Vietnamese finance copy (vi-VN) Finance is the one domain in this repo where getting the words wrong has **statutory** consequences rather than commercial ones, and where the two most common defects both look like competent writing: - **Stale terminology.** Thông tư 200/2014 was replaced by **Thông tư 99/2025/TT-BTC from 01/01/2026**, and the balance sheet was renamed. Any model writing from pre-2026 data produces `Bảng cân đối kế toán`, which is now the wrong name for the statement. - **Prohibited phrasing that reads as ordinary marketing.** `Cam kết lợi nhuận 12%/năm` is a sentence a marketer writes without hesitating. It is also prohibited. **This skill is a copywriting aid, not legal advice.** Its job is to get copy to legal review already clean of the known problems. Several rules below route to that review rather than offering a rewrite, and that is the intended behaviour, not a gap. ## Step 1 — Register: there is effectively one Finance is **`Quý khách`** for customer-facing copy and **impersonal third person** for statements, disclosures, and policy. `bạn` appears only in youth-facing fintech, and even there the money screens and every regulated disclosure revert to formal. `bạn` in a statement, an invoice, a disclosure, or a loan document is always wrong. Use `--register finance-formal`. The shared matrix: **[references/register-matrix.md](references/register-matrix.md)**. ## Step 2 — Core rules (non-negotiable, no file hop needed) 1. **`Báo cáo tình hình tài chính`, not `Bảng cân đối kế toán`**, for any statement dated 2026 or later. TT 99/2025/TT-BTC, form B01-DN. This is an error, not a preference. 2. **Never write guaranteed-return language.** `cam kết lợi nhuận`, `đảm bảo sinh lời`, `bảo toàn vốn`, `đầu tư không rủi ro`, `chắc chắn có lãi`. Write `lợi nhuận kỳ vọng` with a risk statement — and send it to legal review anyway. 3. **A promotional rate needs its total cost beside it.** `Lãi suất 0%` without the fees that replace it is a transparency breach under TT 43/2016 as amended by TT 18/2019. 4. **Numbers group with periods.** `2.500.000.000`, never `2,500,000,000`. In a finance document a comma-grouped number is a factor-of-a-thousand ambiguity, not a style slip. 5. **Negatives use parentheses.** `(1.234)`, never `-1.234`. 6. **Every statement table declares `Đơn vị tính`** — `triệu đồng`, `tỷ đồng`, or `VND`. 7. **Standard tax abbreviations only**: `thuế GTGT`, `thuế TNDN`, `thuế TNCN`, `MST`. Never `PIT`, never the English abbreviations. 8. **`Quý I/II/III/IV`**, Roman numerals. Not `Q4`. 9. **No superlatives.** `Lãi suất cao nhất thị trường` is regulated under Luật Quảng cáo Điều 8 khoản 11. Publish the rate instead — it is more persuasive and it is legal. 10. **Digital assets are not legal tender**, and may only be solicited through a Bộ Tài chính–licensed provider under the NQ 05/2025 pilot. ## Step 3 — Get the statement terminology right The TT 99/2025 renames, statement names, line items, tax abbreviations, and period naming — plus an explicit statement of what this skill does **not** carry (the full account-code mapping, which needs an accountant): **[references/statement-terminology.md](references/statement-terminology.md)** Wrong-sense renderings that no spellcheck catches — `sự công bằng` for equity, `hiệu trưởng` for principal, `tỷ lệ quan tâm` for interest rate — are in **[references/glossary.md](references/glossary.md)**, machine-readable so every row is a lint rule. ## Step 4 — Format the numbers as a statement, not as prose Grouped digits, parenthesised negatives, `Đơn vị tính` headers, currency handling, rounding disclosure, and the e-invoice field labels: **[references/statement-formatting.md](references/statement-formatting.md)** — plus **[references/locale-formatting.md](references/locale-formatting.md)** for the general locale rules and **[references/unicode-and-tone.md](references/unicode-and-tone.md)** for NFC. ## Step 5 — Check the regulated phrasing Guaranteed returns, interest-rate transparency, insurance and investment-linked disclosure under TT 67/2023 Điều 53, and the digital-asset position under Luật 71/2025 and NQ 05/2025 — with the instruments, the effective dates, and an honest account of which prohibitions are assembled from several sources rather than stated in one article: **[references/financial-promotion.md](references/financial-promotion.md)** and **[references/banned-phrases.md](references/banned-phrases.md)**. Cross-cutting rules shared with the other Vietnamese skills: **[references/compliance.md](references/compliance.md)**. ## Step 6 — Validate, fix, then route to review **Run the validator immediately after writing. If it reports errors, fix them and run again.** ```bash python scripts/validate_copy.py bctc.md --doctype statement --register finance-formal python scripts/validate_copy.py hoa-don.md --doctype e-invoice python scripts/validate_copy.py landing-vay.md --doctype financial-promotion ``` - **`FIN001` — guaranteed-return language — is never gated on `--doctype`.** It fires everywhere, because the phrasing is prohibited everywhere. - Other doctypes: `statement`, `e-invoice`, `financial-promotion`, `disclosure`, `loan`. `--list-rules` prints everything this skill can emit. - Exit `0` = clean or warnings only. Exit `1` = errors that must be fixed. - `--json` for machine-readable findings; `--strict` to fail on warnings too. **`FIN001` is a warning rather than an error on purpose.** No single article states the guaranteed-return prohibition verbatim — it is assembled from Luật Chứng khoán Điều 12, NĐ 155/2020 and NĐ 38/2018. Hard-blocking would over-claim a legal position the sources do not support in one place. **A `FIN001` warning means "a lawyer decides this", not "reword it until the linter is quiet."** For a starter invoice: **[assets/hoa-don-gtgt.md.template](assets/hoa-don-gtgt.md.template)**. ## Step 7 — Two reviewers, then ship **[references/examples.md](references/examples.md)** for the worked bad→good pairs. Then the checklist — and unlike the other skills in this repo, this one names **two** professionals. Statement terminology needs an accountant; anything soliciting investment, describing insurance, or presenting a credit rate needs a lawyer. A fluent Vietnamese speaker is not a substitute for either. **[references/qa-checklist.md](references/qa-checklist.md)** ## Source & license This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code. - **Author:** [trussary](https://github.com/trussary) - **Source:** [trussary/vietnamese-language-skill](https://github.com/trussary/vietnamese-language-skill) - **License:** MIT Install and usage instructions live in the source repository linked above. ## Pricing - **Free** — Free ## Security capabilities Automated source analysis of v0.1.0 — what this tool can access: - **Network access:** no - **Filesystem access:** no - **Shell / process execution:** no - **Environment & secrets:** no - **Dynamic code execution:** no *"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.* ## Versions - **0.1.0** — security scan: passed — Imported from the upstream source. ## Links - Listing page: https://agentstack.voostack.com/l/skill-trussary-vietnamese-language-skill-vietnamese-finance-copy - Seller: https://agentstack.voostack.com/s/trussary - Browse the marketplace: https://agentstack.voostack.com/browse --- Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.