Issue #1196: golangci-lint errcheck flags bare resp.Body.Close()
calls because Body.Close() can return a non-nil error (e.g. when the
server sent fewer bytes than Content-Length). All occurrences fixed:
defer resp.Body.Close() → defer func() { _ = resp.Body.Close() }()
resp.Body.Close() → _ = resp.Body.Close()
12 files affected across all Go packages — channels, handlers,
middleware, provisioner, artifacts, and cmd. The body is already fully
consumed at each call site, so the error is always safe to discard.
🤖 Generated with [Claude Code](https://claude.ai)
Co-authored-by: Molecule AI Core-BE <core-be@agents.moleculesai.app>
Adds isSafeURL() + isPrivateOrMetadataIP() in mcp.go and wires the
check into:
- MCP delegate_task (sync path) — line 530
- MCP delegate_task_async (fire-and-forget) — line 602
- a2a_proxy resolveAgentURL() — line 391
Blocklist covers: RFC-1918 private (10/8, 172.16/12, 192.168/16),
cloud metadata link-local (169.254/16), carrier-grade NAT (100.64/10),
documentation ranges (192.0.2/24, 198.51.100/24, 203.0.113/24),
loopback, unspecified, and link-local multicast.
For hostnames, DNS is resolved and every returned IP is validated —
blocks internal hostnames that resolve to private ranges.
Closes: #1130 (F1083 — SSRF in A2A proxy and MCP bridge)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Sub of #795 (phantom-busy post-mortem). Adds last_outbound_at TIMESTAMPTZ
column to workspaces. Bumped async on every successful outbound A2A call
from a real workspace (skip canvas + system callers). Exposed in
GET /workspaces/:id response as "last_outbound_at".
PM/Dev Lead orchestrators can now detect workspaces that have gone silent
despite being online (> 2h + active cron = phantom-busy warning).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
