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Add SigV4 credential signing and JSON-RPC fields on NetworkEndpoint #37
Description
Proto Gap: NetworkEndpoint Extensions
New fields on NetworkEndpoint for AWS SigV4 credential signing and JSON-RPC body size limits.
New proto fields on NetworkEndpoint (sandbox.proto)
| Field | Type | Line | Purpose |
|---|---|---|---|
credential_signing |
string |
166 | Enable SigV4 signing (e.g., "aws-sigv4") |
signing_service |
string |
169 | AWS service name for signing |
signing_region |
string |
172 | AWS region for signing |
json_rpc_max_body_bytes |
uint32 |
175 | Max JSON-RPC request body size |
Implementation scope
- Add fields to
NetworkEndpointdomain type intypes/policy.go - Update network endpoint converter
- Add to coverage test handled set
- Unit tests
Target drop
Drop D (Policy + Service + TCP + SSH)
References
sandbox.protolines 166-175
Activity
rhuss commentedon Jul 29, 2026
Implementation Hints
Implement directly with plan mode (
/planin Claude Code). Trivial field additions.Approach
Add 4 fields to
PolicyNetworkEndpointintypes/policy.go:CredentialSigning stringSigningService stringSigningRegion stringJsonRpcMaxBodyBytes uint32Update the network endpoint converter to map these fields in both directions
Add to coverage test handled sets
Pattern to follow
See existing fields on
PolicyNetworkEndpoint(Host, Port, Protocol, etc.) intypes/policy.go.Verification
feat: add Drop D proto gap types (MCP, middleware, SigV4) (#55)