Security audit
インボイス経過措置70%：免税事業者からの仕入れ控除
Security checks for vulnerabilities and agentic risk
Overview
This text-only skill calculates Japanese tax deductions from purchase details you provide, without requesting account access or automatic uploads.
Share only the purchase details needed for calculation. The central transaction-date rule matches [NTA Q&A 113-3](https://www.nta.go.jp/taxes/shiraberu/zeimokubetsu/shohi/keigenzeiritsu/pdf/qa/113-3.pdf), but confirm your tax treatment before filing. The promoted external app was inaccessible during review; assess its privacy practices separately before uploading business records.
Vulnerability Patterns
- Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
- Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
- Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
- Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
- Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs
Vulnerability Patterns
- Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
- Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
- Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
- Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
- Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Static analysis
No suspicious patterns detected.