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Security audit

Amazon 商品描述优化

Security checks for vulnerabilities and agentic risk

Overview

This description-writing skill also exposes paid analysis and recurring monitoring, with conflicting rules about when your approval is required.

Review this as a broader ARI account tool, not just a description writer. Prefer a package that enforces the advertised scope. If proceeding, set credit spending to ask every time, choose manual collection for one-time work, and approve recurring charges separately.

Vulnerability Patterns
  • Insecure Skill Coding PracticesFinds exploitable flaws such as hardcoded secrets or command injection
  • 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
Findings (1)

T09 · Insecure Skill Coding Practices

Warning
Location
scripts/ari.py
Finding

Recurring paid collection can be enabled without an executable confirmation gate

Content
View full analysis

Impact

A premature Agent invocation can enable future collection charges against the authenticated account until monitoring is disabled or service-side limits intervene. No arbitrary charge amount or cross-account access is established.

Vulnerability Patterns
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Findings (89)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
98% confidence
Finding

The document actively directs general VOC generation, advertising analysis, account configuration, and recurring collection despite its description-only contract. Its final fixed-entry section requires explicit payment confirmation, but conflicting earlier instructions authorize automatic charges and arbitrary operations workflows, creating an actionable scope and consent ambiguity.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
98% confidence
Finding

This overlaps the recurring-watch scope violation: instructions expose persistent billing-related mutations through an entry point advertised as diagnosis and advice only. Explicit consent and ownership checks mitigate the consequences, and the text does not establish a bypass of those checks.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
97% confidence
Finding

The comparison workflow recommends binding competitors and states that binding starts weekly collection, without explicitly requiring separate consent to that recurring side effect. Consent to a one-time comparison does not necessarily authorize ongoing collection or any associated charges.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
97% confidence
Finding

The skill includes operational instructions for creating and managing recurring watches outside its explicitly limited purpose. The watch-specific quotation and consent requirements reduce unauthorized-charge risk, but do not resolve the conflict with the description-only entry point.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
96% confidence
Finding

Recurring collection and schedule changes extend beyond description recommendations and can persist after the immediate task. The document requires consent for those changes, but exposing them alongside contradictory fixed-scope instructions creates avoidable scope and billing risk.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
96% confidence
Finding

Recurring watch creation and competitor monitoring are state-changing capabilities inconsistent with the declared description-only boundary. This duplicates the watch scope issue rather than establishing an additional exploit; mandatory price confirmation substantially limits the billing risk.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
94% confidence
Finding

The supplied commands concern watch-monitoring quotes and listings rather than product-description analysis or rewriting recommendations. These are distinct, undeclared capabilities. Although both use ARI, sharing an API provider does not establish that monitoring administration supports the declared diagnostic purpose. The snippet does not show automatic publishing, advertising, or creation of monitoring tasks.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
94% confidence
Finding

The supplied command explicitly requests a category leaderboard, which is a distinct capability not disclosed by the description. Although negative reviews could support description diagnosis, this invocation does not request diagnosis or rewriting. The CLI implementation is not provided, so the assessment does not infer additional effects from --confirm or assume any particular API access.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
92% confidence
Finding

The visible commands concern watch monitoring rather than product-description gap analysis or revision recommendations. Nothing in the supplied chunk connects these watch outputs to the declared diagnostic workflow, so this appears to be an undeclared capability rather than a demonstrated supporting implementation detail. The CLI implementation is not supplied, so its underlying data access and side effects cannot be verified. There is no visible evidence of advertising or automatic publishing.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
87% confidence
Finding

The watch quote and watch list operations expose monitoring-related functionality not disclosed in the description, which limits the skill to product-description diagnosis and revision advice. The shared ARI interface alone does not establish these operations as supporting that purpose. The snippet does not show watch creation, automatic publishing, or advertising.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
76% confidence
Finding

The supplied command selects an alerts operation rather than an explicitly identifiable product-description diagnostic or revision workflow. This indicates an undeclared capability. However, without scripts/ari.py, it is not possible to establish whether the operation retrieves, configures, or sends alerts, or whether it accesses any external resources.

Content

No source excerpt is available for this finding.

The reference makes recurring collection the default despite the manifest limiting the skill to product-description diagnosis and suggestions.

High
Category
Excessive Agency
Confidence
97% confidence
Finding

Collection defaults to a recurring weekly schedule unless the caller explicitly selects manual. A user requesting one-time product-description advice could therefore acquire ongoing credit charges without authorizing monitoring; describing future costs in a quote is not equivalent to obtaining consent.

Content

No source excerpt is available for this finding.

Paid analysis can execute without the explicit --confirm flag promised by the module documentation.

High
Category
Excessive Agency
Confidence
99% confidence
Finding

run_analysis changes confirm from false to true when the quote response supplies a truthy autoConfirm value, then executes a credit-consuming analysis. This violates the documented explicit-confirmation boundary and can make analyze or deepdive charge credits when the caller expected only a quotation; actual CLI reachability depends on the package's unprovided allowedCommands configuration.

Content

No source excerpt is available for this finding.

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
85% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · CHANGELOG.md (reported line 23)May include surrounding context.

md
- 重新发布:各市场首批上架的 1.5.0 包早于免确认修复,新注册的免费版用户仍会被要求先确认报价。
  1.5.1 与当前官网下发的修复版一致,市场侧以新版本号覆盖旧包。
- 免确认只认服务端报价返回的 `autoConfirm`;采集报价扣除首次采集免费页;
  非美国站首次采集可用赠送积点时不再提示「赠送积点不可用」(行为与修复后的 1.5.0 相同)。
- 命令、字段与计费规则不变,不提高最低支持版本。

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
85% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · CHANGELOG.md (reported line 32)May include surrounding context.

md
- 行为变更:新用户(注册并验证邮箱后)第一次要 VOC,只给 ASIN 即可(站点默认美国站),
  `voc` 直接执行——自动补采集(默认 3 页)、生成报告、按服务端定价扣费并归档,
  不再停在报价等确认。费用在报告返回的 `charges` 字段透明展示(采集/分析/合计/余额前后)。
- 免确认与否**只认服务端报价返回的 `autoConfirm` 布尔**:服务端策略前 N 次付费生成不看金额上限
  (新用户赠送积点按设计覆盖「3 页采集 + 一份 VOC」);用户自设阈值优先、显式要求「每次先问」
  时仍先报价;余额不足不自动。客户端不再从 `autoConfirmNote` 文案或 `autoConfirmRemaining`
  自行推断——文案匹配会把 Free 小额提示里的「先确认」误判成用户要求每次询问,恰好挡住新用户。

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
85% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · CHANGELOG.md (reported line 34)May include surrounding context.

md
不再停在报价等确认。费用在报告返回的 `charges` 字段透明展示(采集/分析/合计/余额前后)。
- 免确认与否**只认服务端报价返回的 `autoConfirm` 布尔**:服务端策略前 N 次付费生成不看金额上限
  (新用户赠送积点按设计覆盖「3 页采集 + 一份 VOC」);用户自设阈值优先、显式要求「每次先问」
  时仍先报价;余额不足不自动。客户端不再从 `autoConfirmNote` 文案或 `autoConfirmRemaining`
  自行推断——文案匹配会把 Free 小额提示里的「先确认」误判成用户要求每次询问,恰好挡住新用户。
- 采集报价同口径扣除服务端 `trialFreePages`(首次采集试用免费页),避免新用户被误报「积点不足」。
- 非美国站:服务端 `credits.gift` 策略下用户首次采集不限站点,`credits/balance` 返回 `giftAllSites`,

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
85% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · CHANGELOG.md (reported line 34)May include surrounding context.

md
不再停在报价等确认。费用在报告返回的 `charges` 字段透明展示(采集/分析/合计/余额前后)。
- 免确认与否**只认服务端报价返回的 `autoConfirm` 布尔**:服务端策略前 N 次付费生成不看金额上限
  (新用户赠送积点按设计覆盖「3 页采集 + 一份 VOC」);用户自设阈值优先、显式要求「每次先问」
  时仍先报价;余额不足不自动。客户端不再从 `autoConfirmNote` 文案或 `autoConfirmRemaining`
  自行推断——文案匹配会把 Free 小额提示里的「先确认」误判成用户要求每次询问,恰好挡住新用户。
- 采集报价同口径扣除服务端 `trialFreePages`(首次采集试用免费页),避免新用户被误报「积点不足」。
- 非美国站:服务端 `credits.gift` 策略下用户首次采集不限站点,`credits/balance` 返回 `giftAllSites`,

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
85% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · CHANGELOG.md (reported line 41)May include surrounding context.

md
为 true 时赠送积点计入 `nonUsCollectCredits`、`siteNote` 为空;UK/DE/JP 卖家的第一份 VOC 同样一步直出。
- 余额不足仍在执行前拦截(402)并引导充值;定价以服务端配置为准,代码常量仅为兜底。
- 一致性:`analyze` 各类型(insight / keywords / trend / variant / compare)走同一口径,
  `autoConfirm=true` 即直接生成并返回 `charges`。
- 文档:移除所有写死的单价与合计示例。采集/分析单价与页数由后台 `pricing` 配置决定,
  一律以本次报价返回的 `credits` / `totalCredits` 为准,不得凭文档或记忆报数。

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
85% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · CHANGELOG.md (reported line 77)May include surrounding context.

md
- 能力层收窄:44 个专属包不再只是「声明窄」,包体 `scripts/ari.py` 同时按各自契约裁剪。
  构建期用 AST 删除文档未承诺的命令、它们的解析器注册块,以及只被它们引用的辅助函数与
  常量;专属包因此不再包含 `export`(任意路径写文件)、`autoconfirm`(撤销逐次确认)、
  `workbench`(改写差评处理状态)、`alerts`(标记预警已读)、`competitors`、`schedule`、
  `voc` / `analyze` / `charts` / `deepdive` 等母版命令。
- 新增运行期兜底闸:专属包在包内写入 `allowedCommands` 白名单,`ari.py`

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
85% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · scripts/ari.py (reported line 1890)May include surrounding context.

python
p = sub.add_parser("check", parents=[common], help="验证 Key、账户和积点余额")
    p.set_defaults(fn=cmd_check)

    p = sub.add_parser("autoconfirm", parents=[common],
                       help="免确认阈值:autoconfirm 50 / autoconfirm off / autoconfirm default;不带参数查看")
    p.add_argument("value", nargs="?", default="")
    p.set_defaults(fn=cmd_autoconfirm)

Skill declares no tool scope ('permissions' or 'allowed-tools') but code capabilities were detected: env, file_write, network, shell.

Medium
Category
MCP Least Privilege
Confidence
70% confidence
Finding

Without declared permissions the skill's intent is opaque and cannot be validated.

Content

No source excerpt is available for this finding.

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
96% confidence
Finding

The skill treats server-defined first-use exemptions, including exemptions without an amount cap, as sufficient authority to spend credits. A server's willingness to execute is not evidence of user consent, especially when this specialized entry point explicitly promises quotation and confirmation.

Content

Scanner excerpt · SKILL.md (reported line 57)May include surrounding context.

md
`voc <ASIN>`(没说站点就用默认的美国站,不要为此追问)。
  命中服务端免确认规则(新用户首次体验不看金额 / 账户剩余免确认次数 / 用户自设阈值)且余额充足时,
  **直接完成采集 + 生成 + 扣点并归档**,不再停在报价环节。绝不能描述成“先帮你问个价 / 只报价不扣点”。
  免确认与否以返回里的 `autoConfirm` 为准,不要自己从提示文案里猜。
- 直接生成成功后,返回结果带 `charges`(采集扣点、分析扣点、合计、扣前/扣后余额)与 `autoConfirmNote`。
  **先讲报告,再用一句话转述实际扣点**,不要在拿到结果后再补问「要不要生成」,也不要回头补一次报价。
- 只有在返回 `confirmationRequired: true` 时(余额不足、或用户自行设置了“每次先问”)

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
96% confidence
Finding

This is another occurrence of the same consent flaw: a returned autoConfirm flag can authorize execution even when it reflects a service default rather than a user-approved budget. Reporting the deduction afterward does not repair missing advance authorization.

Content

Scanner excerpt · SKILL.md (reported line 58)May include surrounding context.

md
命中服务端免确认规则(新用户首次体验不看金额 / 账户剩余免确认次数 / 用户自设阈值)且余额充足时,
  **直接完成采集 + 生成 + 扣点并归档**,不再停在报价环节。绝不能描述成“先帮你问个价 / 只报价不扣点”。
  免确认与否以返回里的 `autoConfirm` 为准,不要自己从提示文案里猜。
- 直接生成成功后,返回结果带 `charges`(采集扣点、分析扣点、合计、扣前/扣后余额)与 `autoConfirmNote`。
  **先讲报告,再用一句话转述实际扣点**,不要在拿到结果后再补问「要不要生成」,也不要回头补一次报价。
- 只有在返回 `confirmationRequired: true` 时(余额不足、或用户自行设置了“每次先问”)
  才报出 `totalCredits` 与余额并等待同意,同意后追加 `--confirm`。

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
96% confidence
Finding

The workflow deliberately calls a potentially charging VOC operation before obtaining a quotation and relies on discovering the charge after execution. Its first-use policy can therefore consume credits without informed price approval and contradicts the description-only confirmation requirement.

Content

Scanner excerpt · SKILL.md (reported line 113)May include surrounding context.

md
1. 运行 `check`,确认账户、邮箱验证状态和可用积点。
2. 用户要 VOC / 评论分析报告时,默认运行 `voc <ASIN> --site <站点>`,**不要再先跑一次报价**。
   **返回里有 `autoConfirmed: true`(或直接带 `reportId` / 正文)就说明报告已经生成并扣点了**
   (1.5.0:新用户首次体验直接出结果,用户先拿到报告再谈钱)。
   此时把报告讲给用户,并转述 `charges` — 本次采集扣了多少、分析扣了多少、合计多少、扣后还剩多少。
   **不要在拿到结果后再补问「要不要生成」,也不要再回头补一次报价。**

The operational instructions route advertising requests to keyword-analysis workflows despite the description-only scope.

Medium
Category
Excessive Agency
Confidence
98% confidence
Finding

These instructions explicitly route advertising requests to paid keyword workflows despite the skill's exclusion of advertising. Although payment confirmation is required, the conflicting routing weakens the promised task boundary and can cause out-of-scope paid execution.

Content

No source excerpt is available for this finding.