Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add arifulislamat/bd-income-tax-skills/plugin install bd-income-taxWrote 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/arifulislamat/bd-income-tax-skills/bd-income-tax)<a href="https://agentmods.dev/skills/arifulislamat/bd-income-tax-skills/bd-income-tax"><img src="https://agentmods.dev/badge/skills/arifulislamat/bd-income-tax-skills/bd-income-tax/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/arifulislamat/bd-income-tax-skills/bd-income-tax"><img src="https://agentmods.dev/badge/skills/arifulislamat/bd-income-tax-skills/bd-income-tax.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 | $0.00149 | $0.02533 |
| Opus 5 | $0.00075 | $0.01267 |
| Sonnet 5 | $0.00030 | $0.00507 |
| Haiku 4.5 | $0.00015 | $0.00253 |
Grade A, and why
bd-income-tax 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 — 182 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Bangladesh individual income tax
Compute and explain personal/individual Bangladesh income tax. Scope is individuals
only — not corporate tax or VAT. All arithmetic is done by scripts/tax_calc.py; never
hand-calculate.
1. Determine the assessment year first
Bangladesh fiscal/income year runs 1 Jul – 30 Jun; the income year maps to the following assessment year (AY).
| Income year | Assessment year | Governing law | General threshold |
|---|---|---|---|
| 1 Jul 2024 – 30 Jun 2025 | AY 2025-26 | Finance Ordinance 2025 | 350,000 |
| 1 Jul 2025 – 30 Jun 2026 | AY 2026-27 (primary) | ITA 2023 + Finance Act 2026 | 400,000 |
| 1 Jul 2026 – 30 Jun 2027 | AY 2027-28 (legislated) | mirrors AY 2026-27 (Finance Act 2026 multi-year schedule) until the Finance Act 2027 | 400,000 |
- Default: if the user gives a current salary/income with no year, assume income year FY 2025-26 → AY 2026-27.
- For "what will I owe next year" questions (e.g. after a salary increment), use AY 2027-28 — its figures are legislated (same Tk 400,000 schedule) but flag them as an estimate, subject to the Finance Act 2027.
- State the assessment year and governing law at the top of every answer.
- The Finance Act 2026 raised the general tax-free threshold to Tk 400,000 on passage (up from the Tk 375,000 originally proposed) — use 400,000 for AY 2026-27.
2. Read the right reference file (progressive disclosure)
Read only the file for the relevant year, plus shared files as needed:
references/ay-2026-27.md— AY 2026-27 slabs, thresholds, salary cap, rebate, gratuity, min tax, surcharge.references/ay-2025-26.md— prior-year figures (note the 5% slab still applies that year).references/ay-2027-28.md— next year; legislated to mirror AY 2026-27 (flag as estimate).references/procedure.md— the ordered 9-step procedure + worked example.references/filing.md— TIN, PSR, e-return, forms, Tax Day, penalties.references/sources.md— source keys; cite the source for every rate/threshold.
What ships with it
9 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.
- 12d ago First seen · 182 lines · 149 tokens per session scan A 1b2b6f7f95e9
bd-income-tax is a skill published in the GitHub repository arifulislamat/bd-income-tax-skills (3 stars, last pushed 2mo ago), licensed MIT. It adds 149 tokens to every session and 2,533 once invoked, about $0.0007 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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