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docs(policy): include MCP DELETE in custom recipe #6638

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Merged
cv merged 1 commit into from
Jul 11, 2026
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docs(policy): include MCP DELETE in custom recipe #6638

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4 changes: 3 additions & 1 deletion docs/network-policy/customize-network-policy.mdx
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Original file line number Diff line number Diff line change
Expand Up @@ -159,7 +159,8 @@ CONNECT tunnel failed, response 403
This recipe applies only when URL-based MCP traffic uses the sandbox proxy and fails with that CONNECT 403 response.
An OAuth MCP login failure such as `getaddrinfo EAI_AGAIN`, or any direct-DNS path that bypasses the proxy, is a separate transport problem and is not fixed by widening this allowlist.

Add a preset with the MCP host, the exact Streamable HTTP MCP route, the HTTP methods that route uses (`GET` and `POST`), and only the process binary that opens the connection:
Add a preset with the MCP host, the exact Streamable HTTP MCP route, the HTTP methods that route uses (`GET`, `POST`, and `DELETE`), and only the process binary that opens the connection.
Streamable HTTP MCP clients can use `DELETE` on the same endpoint to terminate a session, so keep that method scoped to the exact MCP route instead of widening the path:

```yaml
preset:
Expand All @@ -176,6 +177,7 @@ network_policies:
rules:
- allow: { method: GET, path: "/mcp" }
- allow: { method: POST, path: "/mcp" }
- allow: { method: DELETE, path: "/mcp" }
binaries:
- { path: /usr/local/bin/node }
```
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2 changes: 2 additions & 0 deletions test/policy-roundtrip-docs.test.ts
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Expand Up @@ -27,9 +27,11 @@ describe("policy round-trip documentation examples", () => {
expect(section).toBeDefined();
expect(section).toContain('- allow: { method: GET, path: "/mcp" }');
expect(section).toContain('- allow: { method: POST, path: "/mcp" }');
expect(section).toContain('- allow: { method: DELETE, path: "/mcp" }');
expect(section).not.toContain('path: "/**"');
expect(section?.match(/- \{ path: \/usr\/local\/bin\//g)).toHaveLength(1);
expect(section).toContain("only the process that opens the connection");
expect(section).toContain("terminate a session");
expect(section).toContain("do not replace it with `/**`");
expect(section).toContain("does not disable OpenShell's SSRF protection");
expect(section).toContain("getaddrinfo EAI_AGAIN");
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