Annotate and review coding agent plans and code diffs visually, share with your team, send feedback to agents with one click.
Agent skills for useful HTML artifacts, wireframes, interactive prototypes, plans, and diagrams.
Annotate terminal text, review documents and agent replies in Herdr, and send the feedback straight back to the agent.
Open source alternative to Claude artifacts.
Annotate Markdown in the terminal: select, comment, looks-good, delete; send the review to your agent.
Agent skill: write a Guided Review of a diff and export it as a portable HTML file (plannotator guide export)
Open Plannotator reviews inside Herdr Browser panes.