Aider sparks hunt for local-only harnesses

This is a privacy-first feature request disguised as a tool comparison. For this audience, "local-first" means no hidden network paths, no provider auto-discovery, and no trust in undocumented defaults.

• –Aider fits the terminal-local workflow well and supports local models, so it matches the ergonomics of the ask.
• –OpenCode shows how these tools drift toward integrations: multi-provider support, sharing, updates, telemetry, and MCP make them powerful but harder to trust.
• –The real requirement is a hard offline boundary, which means egress blocking, containerization, and local-only model routing, not just config flags.
• –OpenJet's mention suggests demand for a niche but real category: an explicitly air-gapped coding harness, not a cloud-first agent with a local mode.