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 nijanthan-dev/taxmate-australia --skill codex-simplifygit clone --depth 1 https://github.com/nijanthan-dev/taxmate-australiaWrote 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/nijanthan-dev/taxmate-australia/codex-simplify)<a href="https://agentmods.dev/skills/nijanthan-dev/taxmate-australia/codex-simplify"><img src="https://agentmods.dev/badge/skills/nijanthan-dev/taxmate-australia/codex-simplify.svg" alt="Measured on agentmods" 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 | $0.00035 | $0.00687 |
| Opus 5 | $0.00017 | $0.00344 |
| Sonnet 5 | $0.00007 | $0.00137 |
| Haiku 4.5 | $0.00003 | $0.00069 |
Grade A, and why
codex-simplify 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 8d 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.
The source is not reproduced here
A licence we could not identify
The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.
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.
- 8d ago First seen · 56 lines · 35 tokens per session scan A 0d076f222d3b
codex-simplify is a skill published in the GitHub repository nijanthan-dev/taxmate-australia (6 stars, last pushed 6d ago), with no licence file. It adds 35 tokens to every session and 687 once invoked, about $0.0002 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 skills, from other repositories
au-tax-return
Australian tax return documentation assistant. Scans Gmail for receipts and invoices, categorises work-related deductions by ATO category, applies occupation-specific guidance, and saves an organised folder ready to review with your accountant. Also handles additional income types — rental/investment property…
tax-sort-receipts
Sorts and files downloaded Australian tax receipt and invoice attachments into the correct ATO deduction folders. Reads each file in a receipts-to-sort/ folder, matches it to the right item and category using the deductions.csv and rental-schedule.csv that the au-tax-return skill created, renames it clearly, moves it…
autoreview
Pre-commit/ship code review: Codex default; optional Claude or Pi.
rework-rate
Measure and interpret PR rework rate — the emerging 5th DORA metric.
omh-code-review
This is a Hermes-native code-review workflow skill.
code-reviewer
Code review specialist focused on patterns, bugs, security, and performance.