Summary
NanoBot closed a feature PR that delivers image content from MCP tools as artifacts rather than embedding base64 payloads into tool-result strings. The change reduces context pollution and protects model token budgets in multimodal agent workflows.
What changed
NanoBot merged PR #4542 to deliver MCP image content as artifacts instead of injecting base64 image payloads into text tool results.
Why it matters
As agents call richer tools, raw binary or base64 outputs can silently destroy context windows and increase costs. Artifact routing is a practical infrastructure pattern for keeping multimodal tool use usable and auditable.
Evidence excerpt
Agents Radar reports PR #4542 as closed, adding artifact delivery for image content from MCP tools to prevent base64 payloads from polluting tool-result strings and consuming token budgets.