# Spec: Go SDK (`github.com/sentryagent/idp-sdk-go`)

**Status**: Pending CEO approval
**Workstream**: 3 of 8

## Scope
- `sdk-go/` directory at project root
- Context-aware `AgentIdPClient` using standard library `net/http`
- `TokenManager` with mutex-guarded cache and 60s auto-refresh
- Service clients: `AgentRegistryClient`, `CredentialClient`, `TokenClient`, `AuditClient`
- Idiomatic Go error type `AgentIdPError` implementing `error` interface
- `go.mod` module: `github.com/sentryagent/idp-sdk-go`
- `sdk-go/README.md`

## Acceptance Criteria
- [ ] All 14 endpoints covered
- [ ] All methods take `context.Context` as first argument
- [ ] No panics — all errors returned as `error`
- [ ] `AgentIdPError` implements `error` and exposes `.Code`, `.HTTPStatus`, `.Details`
- [ ] `TokenManager` is goroutine-safe (`sync.Mutex` on cache)
- [ ] `go vet` and `staticcheck` pass with zero warnings
- [ ] `go test ./...` with >80% coverage
- [ ] README matches Node.js SDK structure
