feat(runtime): implement HTTP hostcall for agent API access#24
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simonovic86 merged 1 commit intomainfrom Mar 13, 2026
Merged
feat(runtime): implement HTTP hostcall for agent API access#24simonovic86 merged 1 commit intomainfrom
simonovic86 merged 1 commit intomainfrom
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Add http_request hostcall to the capability membrane so agents can make HTTP requests to allowed external services. This is the single feature that makes agents actually useful (Product Phase 2, Task P2-1). Host-side (internal/hostcall/http.go): - ABI: http_request(method, url, headers, body, resp_buf) -> i32 - Security: allowed_hosts enforcement from manifest options - Timeout (10s default), max response size (1MB default) - Two-call pattern: returns -5 with size hint when buffer too small - Eventlog recording for deterministic replay (CM-4) SDK WASM wrapper (sdk/igor/hostcalls_http_wasm.go): - HTTPRequest, HTTPGet, HTTPPost convenience functions - Auto-retry with larger buffer on -5 (response too large) SDK native stubs (sdk/igor/hostcalls_http_stub.go): - Dispatches to MockBackend for native testing Mock support (sdk/igor/mock/mock.go): - HTTPHandler type + SetHTTPHandler for test configuration Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
http_requesthostcall to the capability membrane so WASM agents can make HTTP requests to external APIs (Product Phase 2, Task P2-1)HTTPRequest,HTTPGet,HTTPPostwrappers with auto-retry on buffer-too-small, plus native stubs and mock support for testingTest plan
go test ./internal/hostcall/...— extractAllowedHosts, checkAllowedHost, parseHeaders, extractIntOptiongo test ./sdk/igor/...— SDK compiles with updated MockBackend interfacego test ./...— all 25 packages passgo build ./cmd/igord/— product binary compilesmake check— fmt, vet, lint, tests all pass🤖 Generated with Claude Code