0.9.9 — 2026-06-04 — MCP Screenshot Delivery

Release Notes

Screenshots captured by web.screenshot / web.navigate now reach MCP clients
as usable PNG bytes. Capture always worked, but no renderable image ever reached
a consumer: the content-store blob was a double-encoded CBOR{data:base64}
envelope, MCP had no image content type, and there was no way to resolve a
screenshot hash over MCP.

Fixed

• Screenshots arrive empty at MCP clients (#116). The content store now holds
  a raw PNG — decoded from the CDP {data:<base64>} envelope by a shared
  host-side helper — and web.screenshot actually persists its capture via a new
  typed record-screenshot host import (previously it stored nothing and emitted
  a dangling hash). Determinism (NFR-DET-01 hash-chain exclusion of screenshots),
  GC reference-walking, and content-addressed dedup are all preserved.

Added

• MCP image delivery (#116). A tools/call for web.screenshot /
  web.navigate now returns an inline image content block (base64 PNG)
  alongside the text receipt, and a new loom://blob/<hash> MCP resource resolves
  any content hash to its bytes (PNG-sniffed → image/png, else
  application/octet-stream). Both reuse the existing content.get RPC — no new
  daemon RPC.
• cut-release Claude skill + CLAUDE.md. A checklist-driven release runbook
  (version bump across Cargo/README/SDKs/CHANGELOG, then a tag-triggered
  cargo-dist + PyPI + npm + Homebrew publish) so cutting a release is reproducible.

Install loom-cli 0.9.9

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/mentiora-ai/loom/releases/download/v0.9.9/loom-cli-installer.sh | sh

Install prebuilt binaries via Homebrew

brew install mentiora-ai/loom/loom

Download loom-cli 0.9.9

File	Platform	Checksum
loom-cli-aarch64-apple-darwin.tar.xz	Apple Silicon macOS	checksum
loom-cli-x86_64-apple-darwin.tar.xz	Intel macOS	checksum
loom-cli-aarch64-unknown-linux-gnu.tar.xz	ARM64 Linux	checksum
loom-cli-x86_64-unknown-linux-gnu.tar.xz	x64 Linux	checksum