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 skills add kyleoliveiro/sg-gov-skills --skill transactions-paymentsgit clone --depth 1 https://github.com/kyleoliveiro/sg-gov-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/skills/kyleoliveiro/sg-gov-skills/transactions-payments)<a href="https://agentmods.dev/skills/kyleoliveiro/sg-gov-skills/transactions-payments"><img src="https://agentmods.dev/badge/skills/kyleoliveiro/sg-gov-skills/transactions-payments/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/skills/kyleoliveiro/sg-gov-skills/transactions-payments"><img src="https://agentmods.dev/badge/skills/kyleoliveiro/sg-gov-skills/transactions-payments.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 | $0.00198 | $0.02551 |
| Opus 5 | $0.00099 | $0.01275 |
| Sonnet 5 | $0.00040 | $0.00510 |
| Haiku 4.5 | $0.00020 | $0.00255 |
Grade A, and why
transactions-payments 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 11d 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 — 192 lines — stays where its author put it; the contents beside it link to each section on GitHub.
transactions-payments: DSS TX controls for SG government services
You are building or auditing a transaction — an exchange of information, goods, services, or money, or a change to Government Data — in a Singapore government digital service, against the Transactions & Payments family (TX-1..TX-15) of the Digital Service Standards (DSS) under the ICT&SS Policy Reform. The family is the user journey itself: what users know before they start, how the form feels while they're in it, how payment behaves, and what happens after they submit.
The organising principle: a government transaction is a promise with three phases — before (can I do this, what will it cost, what do I need), during (don't lose my work, don't make me retype what the government knows), after (prove it happened, tell me what's next, let me check without calling). Most failures audits find are not broken code but missing phases.
Source and currency
Control text in this skill and references/tx-controls.md is embedded from
info.standards.tech.gov.sg as of 2026-07-23 (TX family page last updated 5 March
2026). The standards iterate actively. For any compliance-critical decision, verify
against the live page:
Read references/tx-controls.md for full control statements, recommendations, and
rationales when you need exact wording.
Implementable vs policy-owned
Every TX control has a developer-buildable surface, but five also have an agency policy angle. Build the implementable part; flag the policy part as an agency decision, don't invent it:
| Control | You build | The agency decides |
|---|---|---|
| TX-1 digital-first | The fully digital flow (Singpass signing, digital payment) | Whether a legal regulation genuinely requires a physical step |
| TX-2 prerequisites | The pre-transaction info page | Eligibility criteria, fees, processing times |
| TX-7 payment/refund | Where fee + refund info is displayed | The refund policy itself |
| TX-10 failure details | The failure UI with reason/alternatives/appeal channel | Which rejection reasons policy allows disclosing |
| TX-12 outcome timeframe | Where the estimate is displayed | The actual processing SLA |
What ships with it
5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 11d ago First seen · 192 lines · 198 tokens per session scan A 677dc261e73c
transactions-payments is a skill published in the GitHub repository kyleoliveiro/sg-gov-skills (16 stars, last pushed 1mo ago), licensed MIT. It adds 198 tokens to every session and 2,551 once invoked, about $0.0010 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 2026-08-30.
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