Update nexus: fix conflicts and sync local changes
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---
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title: "Credential-Isolation"
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type: concept
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tags: [security, credentials, agent-architecture]
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sources: [n8n-workflow-orchestration]
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last_updated: 2026-04-17
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---
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## Aliases
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- Credential Isolation
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- 凭证隔离
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## Definition
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将 API 凭证(密钥、token)存储在 Agent 可控范围之外的系统中,确保 Agent 的工作环境无法直接访问敏感凭证,从而防止因 Agent 代码提交、错误输出或 Prompt Injection 导致凭证泄露。
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## Mechanism
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在 [[Webhook-Proxy-Pattern]] 中:
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- Agent 只持有 Webhook URL(例:`http://n8n:5678/webhook/my-workflow`)
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- API 密钥存储在 n8n 的 Credential Store 中
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- Agent 发送的 JSON payload 不包含任何密钥
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## Why It Matters
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- Agent 的代码、记忆、输出可能被提交到 Git 或暴露在日志中
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- 即使 Agent prompt 被泄露,攻击者也拿不到实际密钥
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- 凭证轮换可在 n8n 端独立完成,无需修改 Agent 提示词
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## Connections
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- [[Webhook-Proxy-Pattern]] — 凭证隔离的实现架构
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- [[Defense-in-Depth]] — 防御纵深策略的组成部分
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- [[Lockable-Workflow]] — 配合凭证隔离防止 Agent 修改调用逻辑
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---
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title: "Credential-Isolation"
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type: concept
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tags: [security, credentials, agent-architecture]
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sources: [n8n-workflow-orchestration]
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last_updated: 2026-04-17
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---
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## Aliases
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- Credential Isolation
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- 凭证隔离
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## Definition
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将 API 凭证(密钥、token)存储在 Agent 可控范围之外的系统中,确保 Agent 的工作环境无法直接访问敏感凭证,从而防止因 Agent 代码提交、错误输出或 Prompt Injection 导致凭证泄露。
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## Mechanism
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在 [[Webhook-Proxy-Pattern]] 中:
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- Agent 只持有 Webhook URL(例:`http://n8n:5678/webhook/my-workflow`)
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- API 密钥存储在 n8n 的 Credential Store 中
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- Agent 发送的 JSON payload 不包含任何密钥
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## Why It Matters
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- Agent 的代码、记忆、输出可能被提交到 Git 或暴露在日志中
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- 即使 Agent prompt 被泄露,攻击者也拿不到实际密钥
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- 凭证轮换可在 n8n 端独立完成,无需修改 Agent 提示词
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## Connections
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- [[Webhook-Proxy-Pattern]] — 凭证隔离的实现架构
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- [[Defense-in-Depth]] — 防御纵深策略的组成部分
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- [[Lockable-Workflow]] — 配合凭证隔离防止 Agent 修改调用逻辑
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