Envia um e-mail transacional para um único destinatário. Por padrão executa um pre-flight automático antes do envio: valida a definition, o asset do Content Builder, os content blocks referenciados, os atributos obrigatórios (campos isRequired da DE + AMPscript + RaiseError guards) e normaliza os...
Part of the Ljit Mcp Sfmc MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.
AI agents use txn_send_email to create or modify resources in Ljit Mcp Sfmc. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call txn_send_email repeatedly, creating or modifying resources faster than any human could review. Intercept's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Ljit Mcp Sfmc.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
tools:
txn_send_email:
rules:
- action: allow
rate_limit:
max: 30
window: 60See the full Ljit Mcp Sfmc policy for all 30 tools.
Agents calling write-class tools like txn_send_email have been implicated in these attack patterns. Read the full case and prevention policy for each:
Other tools in the Write risk category across the catalogue. The same policy patterns (rate-limit, validate) apply to each.
Envia um e-mail transacional para um único destinatário. Por padrão executa um pre-flight automático antes do envio: valida a definition, o asset do Content Builder, os content blocks referenciados, os atributos obrigatórios (campos isRequired da DE + AMPscript + RaiseError guards) e normaliza os nomes de atributos contra o schema da DE. Se houver erros bloqueantes, o e-mail NÃO é enviado e o relatório de pre-flight é retornado com sent=false e a lista de correções necessárias. Use skipPreflight=true apenas para envios de produção onde a validação já foi feita. O messageKey é opcional e será gerado automaticamente se não informado. IMPORTANTE: Para envios de teste onde é necessário confirmar a entrega real, use txn_send_test_email, que além do pre-flight completo aguarda a confirmação de status do SFMC antes de reportar sucesso.. It is categorised as a Write tool in the Ljit Mcp Sfmc MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Add a rule in your Intercept YAML policy under the tools section for txn_send_email. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Ljit Mcp Sfmc MCP server.
txn_send_email is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the txn_send_email rule in your Intercept policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the Intercept policy for txn_send_email. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
txn_send_email is provided by the Ljit Mcp Sfmc MCP server (ljit-mcp-sfmc). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Open source. One binary. Zero dependencies.
npx -y @policylayer/intercept