This skill should be used when the user is ready to submit their tax return, needs a final review checklist, wants to know how to submit (e-Tax, mail, or in-person), or asks about common mistakes before submission. Trigger phrases include: "提出準備", "提出方法", "e-Taxで提出", "チェックリスト", "申告書の確認", "提出前の確認", "郵送で提出", "税務署に持っていく", "提出期限".
SkillScore83Maintained
Automatic
◆Finance & Accounting pack
Last verified 8/21/2026
What it changes
Passed 19 of 23 test cases with the skill, and 15 of 23 without it.
Without skill65%
With skill83%
Checks it passed that the model alone missed
Advises executing the /setup skill when shinkoku.config.yaml is missing
Identifies .shinkoku/progress/09-submit.md as the target output file path
References using Claude in Chrome with the /e-tax skill for web entry automation
and 2 more in the full report
5 fixed14 passed either way3 still failing1 broke
Pass-rate lift
+17 pp
Tokens
+117%
Agent turns
0%
Response time
-60%
Model gemini-3.6-flashMeasured 8/21/2026v119 of 23 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 5 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 5
Prompt
令和7年分の給与所得控除の計算における最低保障額はいくらに引き上げられていますか？
What was checked, without and with the skill
Checked
Without skill
With skill
Identifies 650,000 yen as the minimum employment income deduction guaranteed amount for Reiwa 7
Missed
Passed
case-21 · gemini-3.6-flash · 8/21/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.